Dariusz Komosinski
7 years ago
111 changed files with 30545 additions and 596 deletions
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using System; |
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using System.Collections.Generic; |
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using System.Text; |
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using System.Linq; |
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|
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namespace ControlCatalog.Models |
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{ |
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public static class Countries |
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{ |
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static IEnumerable<Country> GetCountries() |
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{ |
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yield return new Country("Afghanistan", "ASIA (EX. NEAR EAST)", 31056997, 647500, 48, 0, 23.06, 163.07, 700, 36, 3.2, 46.6, 20.34); |
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yield return new Country("Albania", "EASTERN EUROPE", 3581655, 28748, 124.6, 1.26, -4.93, 21.52, 4500, 86.5, 71.2, 15.11, 5.22); |
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yield return new Country("Algeria", "NORTHERN AFRICA", 32930091, 2381740, 13.8, 0.04, -0.39, 31, 6000, 70, 78.1, 17.14, 4.61); |
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yield return new Country("American Samoa", "OCEANIA", 57794, 199, 290.4, 58.29, -20.71, 9.27, 8000, 97, 259.5, 22.46, 3.27); |
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yield return new Country("Andorra", "WESTERN EUROPE", 71201, 468, 152.1, 0, 6.6, 4.05, 19000, 100, 497.2, 8.71, 6.25); |
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yield return new Country("Angola", "SUB-SAHARAN AFRICA", 12127071, 1246700, 9.7, 0.13, 0, 191.19, 1900, 42, 7.8, 45.11, 24.2); |
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yield return new Country("Anguilla", "LATIN AMER. & CARIB", 13477, 102, 132.1, 59.8, 10.76, 21.03, 8600, 95, 460, 14.17, 5.34); |
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yield return new Country("Antigua & Barbuda", "LATIN AMER. & CARIB", 69108, 443, 156, 34.54, -6.15, 19.46, 11000, 89, 549.9, 16.93, 5.37); |
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yield return new Country("Argentina", "LATIN AMER. & CARIB", 39921833, 2766890, 14.4, 0.18, 0.61, 15.18, 11200, 97.1, 220.4, 16.73, 7.55); |
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yield return new Country("Armenia", "C.W. OF IND. STATES", 2976372, 29800, 99.9, 0, -6.47, 23.28, 3500, 98.6, 195.7, 12.07, 8.23); |
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yield return new Country("Aruba", "LATIN AMER. & CARIB", 71891, 193, 372.5, 35.49, 0, 5.89, 28000, 97, 516.1, 11.03, 6.68); |
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yield return new Country("Australia", "OCEANIA", 20264082, 7686850, 2.6, 0.34, 3.98, 4.69, 29000, 100, 565.5, 12.14, 7.51); |
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yield return new Country("Austria", "WESTERN EUROPE", 8192880, 83870, 97.7, 0, 2, 4.66, 30000, 98, 452.2, 8.74, 9.76); |
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yield return new Country("Azerbaijan", "C.W. OF IND. STATES", 7961619, 86600, 91.9, 0, -4.9, 81.74, 3400, 97, 137.1, 20.74, 9.75); |
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yield return new Country("The Bahamas", "LATIN AMER. & CARIB", 303770, 13940, 21.8, 25.41, -2.2, 25.21, 16700, 95.6, 460.6, 17.57, 9.05); |
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yield return new Country("Bahrain", "NEAR EAST", 698585, 665, 1050.5, 24.21, 1.05, 17.27, 16900, 89.1, 281.3, 17.8, 4.14); |
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yield return new Country("Bangladesh", "ASIA (EX. NEAR EAST)", 147365352, 144000, 1023.4, 0.4, -0.71, 62.6, 1900, 43.1, 7.3, 29.8, 8.27); |
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yield return new Country("Barbados", "LATIN AMER. & CARIB", 279912, 431, 649.5, 22.51, -0.31, 12.5, 15700, 97.4, 481.9, 12.71, 8.67); |
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yield return new Country("Belarus", "C.W. OF IND. STATES", 10293011, 207600, 49.6, 0, 2.54, 13.37, 6100, 99.6, 319.1, 11.16, 14.02); |
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yield return new Country("Belgium", "WESTERN EUROPE", 10379067, 30528, 340, 0.22, 1.23, 4.68, 29100, 98, 462.6, 10.38, 10.27); |
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yield return new Country("Belize", "LATIN AMER. & CARIB", 287730, 22966, 12.5, 1.68, 0, 25.69, 4900, 94.1, 115.7, 28.84, 5.72); |
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yield return new Country("Benin", "SUB-SAHARAN AFRICA", 7862944, 112620, 69.8, 0.11, 0, 85, 1100, 40.9, 9.7, 38.85, 12.22); |
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yield return new Country("Bermuda", "NORTHERN AMERICA", 65773, 53, 1241, 194.34, 2.49, 8.53, 36000, 98, 851.4, 11.4, 7.74); |
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yield return new Country("Bhutan", "ASIA (EX. NEAR EAST)", 2279723, 47000, 48.5, 0, 0, 100.44, 1300, 42.2, 14.3, 33.65, 12.7); |
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yield return new Country("Bolivia", "LATIN AMER. & CARIB", 8989046, 1098580, 8.2, 0, -1.32, 53.11, 2400, 87.2, 71.9, 23.3, 7.53); |
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yield return new Country("Bosnia & Herzegovina", "EASTERN EUROPE", 4498976, 51129, 88, 0.04, 0.31, 21.05, 6100,null, 215.4, 8.77, 8.27); |
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yield return new Country("Botswana", "SUB-SAHARAN AFRICA", 1639833, 600370, 2.7, 0, 0, 54.58, 9000, 79.8, 80.5, 23.08, 29.5); |
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yield return new Country("Brazil", "LATIN AMER. & CARIB", 188078227, 8511965, 22.1, 0.09, -0.03, 29.61, 7600, 86.4, 225.3, 16.56, 6.17); |
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yield return new Country("British Virgin Is.", "LATIN AMER. & CARIB", 23098, 153, 151, 52.29, 10.01, 18.05, 16000, 97.8, 506.5, 14.89, 4.42); |
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yield return new Country("Brunei", "ASIA (EX. NEAR EAST)", 379444, 5770, 65.8, 2.79, 3.59, 12.61, 18600, 93.9, 237.2, 18.79, 3.45); |
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yield return new Country("Bulgaria", "EASTERN EUROPE", 7385367, 110910, 66.6, 0.32, -4.58, 20.55, 7600, 98.6, 336.3, 9.65, 14.27); |
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yield return new Country("Burkina Faso", "SUB-SAHARAN AFRICA", 13902972, 274200, 50.7, 0, 0, 97.57, 1100, 26.6, 7, 45.62, 15.6); |
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yield return new Country("Burma", "ASIA (EX. NEAR EAST)", 47382633, 678500, 69.8, 0.28, -1.8, 67.24, 1800, 85.3, 10.1, 17.91, 9.83); |
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yield return new Country("Burundi", "SUB-SAHARAN AFRICA", 8090068, 27830, 290.7, 0, -0.06, 69.29, 600, 51.6, 3.4, 42.22, 13.46); |
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yield return new Country("Cambodia", "ASIA (EX. NEAR EAST)", 13881427, 181040, 76.7, 0.24, 0, 71.48, 1900, 69.4, 2.6, 26.9, 9.06); |
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yield return new Country("Cameroon", "SUB-SAHARAN AFRICA", 17340702, 475440, 36.5, 0.08, 0, 68.26, 1800, 79, 5.7, 33.89, 13.47); |
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yield return new Country("Canada", "NORTHERN AMERICA", 33098932, 9984670, 3.3, 2.02, 5.96, 4.75, 29800, 97, 552.2, 10.78, 7.8); |
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yield return new Country("Cape Verde", "SUB-SAHARAN AFRICA", 420979, 4033, 104.4, 23.93, -12.07, 47.77, 1400, 76.6, 169.6, 24.87, 6.55); |
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yield return new Country("Cayman Islands", "LATIN AMER. & CARIB", 45436, 262, 173.4, 61.07, 18.75, 8.19, 35000, 98, 836.3, 12.74, 4.89); |
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yield return new Country("Central African Rep.", "SUB-SAHARAN AFRICA", 4303356, 622984, 6.9, 0, 0, 91, 1100, 51, 2.3, 33.91, 18.65); |
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yield return new Country("Chad", "SUB-SAHARAN AFRICA", 9944201, 1284000, 7.7, 0, -0.11, 93.82, 1200, 47.5, 1.3, 45.73, 16.38); |
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yield return new Country("Chile", "LATIN AMER. & CARIB", 16134219, 756950, 21.3, 0.85, 0, 8.8, 9900, 96.2, 213, 15.23, 5.81); |
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yield return new Country("China", "ASIA (EX. NEAR EAST)", 1313973713, 9596960, 136.9, 0.15, -0.4, 24.18, 5000, 90.9, 266.7, 13.25, 6.97); |
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yield return new Country("Colombia", "LATIN AMER. & CARIB", 43593035, 1138910, 38.3, 0.28, -0.31, 20.97, 6300, 92.5, 176.2, 20.48, 5.58); |
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yield return new Country("Comoros", "SUB-SAHARAN AFRICA", 690948, 2170, 318.4, 15.67, 0, 74.93, 700, 56.5, 24.5, 36.93, 8.2); |
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yield return new Country("Congo, Dem.Rep.", "SUB - SAHARAN AFRICA", 62660551, 2345410, 26.7, 0, 0, 94.69, 700, 65.5, 0.2, 43.69, 13.27); |
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yield return new Country("Congo, Repub.of the", "SUB - SAHARAN AFRICA", 3702314, 342000, 10.8, 0.05, -0.17, 93.86, 700, 83.8, 3.7, 42.57, 12.93); |
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yield return new Country("Cook Islands", "OCEANIA", 21388, 240, 89.1, 50,null,null, 5000, 95, 289.9, 21,null); |
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yield return new Country("Costa Rica", "LATIN AMER. & CARIB", 4075261, 51100, 79.8, 2.52, 0.51, 9.95, 9100, 96, 340.7, 18.32, 4.36); |
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yield return new Country("Cote d'Ivoire", "SUB-SAHARAN AFRICA", 17654843, 322460, 54.8, 0.16, -0.07, 90.83, 1400, 50.9, 14.6, 35.11, 14.84); |
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yield return new Country("Croatia", "EASTERN EUROPE", 4494749, 56542, 79.5, 10.32, 1.58, 6.84, 10600, 98.5, 420.4, 9.61, 11.48); |
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yield return new Country("Cuba", "LATIN AMER. & CARIB", 11382820, 110860, 102.7, 3.37, -1.58, 6.33, 2900, 97, 74.7, 11.89, 7.22); |
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yield return new Country("Cyprus", "NEAR EAST", 784301, 9250, 84.8, 7.01, 0.43, 7.18, 19200, 97.6,null, 12.56, 7.68); |
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yield return new Country("Czech Republic", "EASTERN EUROPE", 10235455, 78866, 129.8, 0, 0.97, 3.93, 15700, 99.9, 314.3, 9.02, 10.59); |
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yield return new Country("Denmark", "WESTERN EUROPE", 5450661, 43094, 126.5, 16.97, 2.48, 4.56, 31100, 100, 614.6, 11.13, 10.36); |
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yield return new Country("Djibouti", "SUB-SAHARAN AFRICA", 486530, 23000, 21.2, 1.37, 0, 104.13, 1300, 67.9, 22.8, 39.53, 19.31); |
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yield return new Country("Dominica", "LATIN AMER. & CARIB", 68910, 754, 91.4, 19.63, -13.87, 14.15, 5400, 94, 304.8, 15.27, 6.73); |
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yield return new Country("Dominican Republic", "LATIN AMER. & CARIB", 9183984, 48730, 188.5, 2.64, -3.22, 32.38, 6000, 84.7, 97.4, 23.22, 5.73); |
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yield return new Country("East Timor", "ASIA (EX. NEAR EAST)", 1062777, 15007, 70.8, 4.7, 0, 47.41, 500, 58.6,null, 26.99, 6.24); |
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yield return new Country("Ecuador", "LATIN AMER. & CARIB", 13547510, 283560, 47.8, 0.79, -8.58, 23.66, 3300, 92.5, 125.6, 22.29, 4.23); |
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yield return new Country("Egypt", "NORTHERN AFRICA", 78887007, 1001450, 78.8, 0.24, -0.22, 32.59, 4000, 57.7, 131.8, 22.94, 5.23); |
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yield return new Country("El Salvador", "LATIN AMER. & CARIB", 6822378, 21040, 324.3, 1.46, -3.74, 25.1, 4800, 80.2, 142.4, 26.61, 5.78); |
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yield return new Country("Equatorial Guinea", "SUB-SAHARAN AFRICA", 540109, 28051, 19.3, 1.06, 0, 85.13, 2700, 85.7, 18.5, 35.59, 15.06); |
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yield return new Country("Eritrea", "SUB-SAHARAN AFRICA", 4786994, 121320, 39.5, 1.84, 0, 74.87, 700, 58.6, 7.9, 34.33, 9.6); |
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yield return new Country("Estonia", "BALTICS", 1324333, 45226, 29.3, 8.39, -3.16, 7.87, 12300, 99.8, 333.8, 10.04, 13.25); |
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yield return new Country("Ethiopia", "SUB-SAHARAN AFRICA", 74777981, 1127127, 66.3, 0, 0, 95.32, 700, 42.7, 8.2, 37.98, 14.86); |
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yield return new Country("Faroe Islands", "WESTERN EUROPE", 47246, 1399, 33.8, 79.84, 1.41, 6.24, 22000,null, 503.8, 14.05, 8.7); |
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yield return new Country("Fiji", "OCEANIA", 905949, 18270, 49.6, 6.18, -3.14, 12.62, 5800, 93.7, 112.6, 22.55, 5.65); |
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yield return new Country("Finland", "WESTERN EUROPE", 5231372, 338145, 15.5, 0.37, 0.95, 3.57, 27400, 100, 405.3, 10.45, 9.86); |
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yield return new Country("France", "WESTERN EUROPE", 60876136, 547030, 111.3, 0.63, 0.66, 4.26, 27600, 99, 586.4, 11.99, 9.14); |
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yield return new Country("French Guiana", "LATIN AMER. & CARIB", 199509, 91000, 2.2, 0.42, 6.27, 12.07, 8300, 83, 255.6, 20.46, 4.88); |
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yield return new Country("French Polynesia", "OCEANIA", 274578, 4167, 65.9, 60.6, 2.94, 8.44, 17500, 98, 194.5, 16.68, 4.69); |
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yield return new Country("Gabon", "SUB-SAHARAN AFRICA", 1424906, 267667, 5.3, 0.33, 0, 53.64, 5500, 63.2, 27.4, 36.16, 12.25); |
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yield return new Country("Gambia, The", "SUB - SAHARAN AFRICA", 1641564, 11300, 145.3, 0.71, 1.57, 72.02, 1700, 40.1, 26.8, 39.37, 12.25); |
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yield return new Country("Gaza Strip", "NEAR EAST", 1428757, 360, 3968.8, 11.11, 1.6, 22.93, 600,null, 244.3, 39.45, 3.8); |
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yield return new Country("Georgia", "C.W. OF IND. STATES", 4661473, 69700, 66.9, 0.44, -4.7, 18.59, 2500, 99, 146.6, 10.41, 9.23); |
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yield return new Country("Germany", "WESTERN EUROPE", 82422299, 357021, 230.9, 0.67, 2.18, 4.16, 27600, 99, 667.9, 8.25, 10.62); |
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yield return new Country("Ghana", "SUB-SAHARAN AFRICA", 22409572, 239460, 93.6, 0.23, -0.64, 51.43, 2200, 74.8, 14.4, 30.52, 9.72); |
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yield return new Country("Gibraltar", "WESTERN EUROPE", 27928, 7, 3989.7, 171.43, 0, 5.13, 17500,null, 877.7, 10.74, 9.31); |
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yield return new Country("Greece", "WESTERN EUROPE", 10688058, 131940, 81, 10.37, 2.35, 5.53, 20000, 97.5, 589.7, 9.68, 10.24); |
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yield return new Country("Greenland", "NORTHERN AMERICA", 56361, 2166086, 0, 2.04, -8.37, 15.82, 20000,null, 448.9, 15.93, 7.84); |
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yield return new Country("Grenada", "LATIN AMER. & CARIB", 89703, 344, 260.8, 35.17, -13.92, 14.62, 5000, 98, 364.5, 22.08, 6.88); |
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yield return new Country("Guadeloupe", "LATIN AMER. & CARIB", 452776, 1780, 254.4, 17.19, -0.15, 8.6, 8000, 90, 463.8, 15.05, 6.09); |
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yield return new Country("Guam", "OCEANIA", 171019, 541, 316.1, 23.2, 0, 6.94, 21000, 99, 492, 18.79, 4.48); |
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yield return new Country("Guatemala", "LATIN AMER. & CARIB", 12293545, 108890, 112.9, 0.37, -1.67, 35.93, 4100, 70.6, 92.1, 29.88, 5.2); |
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yield return new Country("Guernsey", "WESTERN EUROPE", 65409, 78, 838.6, 64.1, 3.84, 4.71, 20000,null, 842.4, 8.81, 10.01); |
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yield return new Country("Guinea", "SUB-SAHARAN AFRICA", 9690222, 245857, 39.4, 0.13, -3.06, 90.37, 2100, 35.9, 2.7, 41.76, 15.48); |
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yield return new Country("Guinea-Bissau", "SUB-SAHARAN AFRICA", 1442029, 36120, 39.9, 0.97, -1.57, 107.17, 800, 42.4, 7.4, 37.22, 16.53); |
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yield return new Country("Guyana", "LATIN AMER. & CARIB", 767245, 214970, 3.6, 0.21, -2.07, 33.26, 4000, 98.8, 143.5, 18.28, 8.28); |
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yield return new Country("Haiti", "LATIN AMER. & CARIB", 8308504, 27750, 299.4, 6.38, -3.4, 73.45, 1600, 52.9, 16.9, 36.44, 12.17); |
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yield return new Country("Honduras", "LATIN AMER. & CARIB", 7326496, 112090, 65.4, 0.73, -1.99, 29.32, 2600, 76.2, 67.5, 28.24, 5.28); |
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yield return new Country("Hong Kong", "ASIA (EX. NEAR EAST)", 6940432, 1092, 6355.7, 67.12, 5.24, 2.97, 28800, 93.5, 546.7, 7.29, 6.29); |
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yield return new Country("Hungary", "EASTERN EUROPE", 9981334, 93030, 107.3, 0, 0.86, 8.57, 13900, 99.4, 336.2, 9.72, 13.11); |
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yield return new Country("Iceland", "WESTERN EUROPE", 299388, 103000, 2.9, 4.83, 2.38, 3.31, 30900, 99.9, 647.7, 13.64, 6.72); |
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yield return new Country("India", "ASIA (EX. NEAR EAST)", 1095351995, 3287590, 333.2, 0.21, -0.07, 56.29, 2900, 59.5, 45.4, 22.01, 8.18); |
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yield return new Country("Indonesia", "ASIA (EX. NEAR EAST)", 245452739, 1919440, 127.9, 2.85, 0, 35.6, 3200, 87.9, 52, 20.34, 6.25); |
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yield return new Country("Iran", "ASIA (EX. NEAR EAST)", 68688433, 1648000, 41.7, 0.15, -0.84, 41.58, 7000, 79.4, 276.4, 17, 5.55); |
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yield return new Country("Iraq", "NEAR EAST", 26783383, 437072, 61.3, 0.01, 0, 50.25, 1500, 40.4, 38.6, 31.98, 5.37); |
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yield return new Country("Ireland", "WESTERN EUROPE", 4062235, 70280, 57.8, 2.06, 4.99, 5.39, 29600, 98, 500.5, 14.45, 7.82); |
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yield return new Country("Isle of Man", "WESTERN EUROPE", 75441, 572, 131.9, 27.97, 5.36, 5.93, 21000,null, 676, 11.05, 11.19); |
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yield return new Country("Israel", "NEAR EAST", 6352117, 20770, 305.8, 1.31, 0.68, 7.03, 19800, 95.4, 462.3, 17.97, 6.18); |
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yield return new Country("Italy", "WESTERN EUROPE", 58133509, 301230, 193, 2.52, 2.07, 5.94, 26700, 98.6, 430.9, 8.72, 10.4); |
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yield return new Country("Jamaica", "LATIN AMER. & CARIB", 2758124, 10991, 250.9, 9.3, -4.92, 12.36, 3900, 87.9, 124, 20.82, 6.52); |
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yield return new Country("Japan", "ASIA (EX. NEAR EAST)", 127463611, 377835, 337.4, 7.87, 0, 3.26, 28200, 99, 461.2, 9.37, 9.16); |
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yield return new Country("Jersey", "WESTERN EUROPE", 91084, 116, 785.2, 60.34, 2.76, 5.24, 24800,null, 811.3, 9.3, 9.28); |
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yield return new Country("Jordan", "NEAR EAST", 5906760, 92300, 64, 0.03, 6.59, 17.35, 4300, 91.3, 104.5, 21.25, 2.65); |
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yield return new Country("Kazakhstan", "C.W. OF IND. STATES", 15233244, 2717300, 5.6, 0, -3.35, 29.21, 6300, 98.4, 164.1, 16, 9.42); |
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yield return new Country("Kenya", "SUB-SAHARAN AFRICA", 34707817, 582650, 59.6, 0.09, -0.1, 61.47, 1000, 85.1, 8.1, 39.72, 14.02); |
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yield return new Country("Kiribati", "OCEANIA", 105432, 811, 130, 140.94, 0, 48.52, 800,null, 42.7, 30.65, 8.26); |
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yield return new Country("North Korea", "ASIA(EX.NEAR EAST)", 23113019, 120540, 191.8, 2.07, 0, 24.04, 1300, 99, 42.4, 15.54, 7.13); |
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yield return new Country("South Korea", "ASIA(EX.NEAR EAST)", 48846823, 98480, 496, 2.45, 0, 7.05, 17800, 97.9, 486.1, 10, 5.85); |
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yield return new Country("Kuwait", "NEAR EAST", 2418393, 17820, 135.7, 2.8, 14.18, 9.95, 19000, 83.5, 211, 21.94, 2.41); |
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yield return new Country("Kyrgyzstan", "C.W. OF IND. STATES", 5213898, 198500, 26.3, 0, -2.45, 35.64, 1600, 97, 84, 22.8, 7.08); |
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yield return new Country("Laos", "ASIA (EX. NEAR EAST)", 6368481, 236800, 26.9, 0, 0, 85.22, 1700, 66.4, 14.1, 35.49, 11.55); |
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yield return new Country("Latvia", "BALTICS", 2274735, 64589, 35.2, 0.82, -2.23, 9.55, 10200, 99.8, 321.4, 9.24, 13.66); |
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yield return new Country("Lebanon", "NEAR EAST", 3874050, 10400, 372.5, 2.16, 0, 24.52, 4800, 87.4, 255.6, 18.52, 6.21); |
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yield return new Country("Lesotho", "SUB-SAHARAN AFRICA", 2022331, 30355, 66.6, 0, -0.74, 84.23, 3000, 84.8, 23.7, 24.75, 28.71); |
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yield return new Country("Liberia", "SUB-SAHARAN AFRICA", 3042004, 111370, 27.3, 0.52, 0, 128.87, 1000, 57.5, 2.3, 44.77, 23.1); |
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yield return new Country("Libya", "NORTHERN AFRICA", 5900754, 1759540, 3.4, 0.1, 0, 24.6, 6400, 82.6, 127.1, 26.49, 3.48); |
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yield return new Country("Liechtenstein", "WESTERN EUROPE", 33987, 160, 212.4, 0, 4.85, 4.7, 25000, 100, 585.5, 10.21, 7.18); |
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yield return new Country("Lithuania", "BALTICS", 3585906, 65200, 55, 0.14, -0.71, 6.89, 11400, 99.6, 223.4, 8.75, 10.98); |
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yield return new Country("Luxembourg", "WESTERN EUROPE", 474413, 2586, 183.5, 0, 8.97, 4.81, 55100, 100, 515.4, 11.94, 8.41); |
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yield return new Country("Macau", "ASIA (EX. NEAR EAST)", 453125, 28, 16183, 146.43, 4.86, 4.39, 19400, 94.5, 384.9, 8.48, 4.47); |
|||
yield return new Country("Macedonia", "EASTERN EUROPE", 2050554, 25333, 80.9, 0, -1.45, 10.09, 6700,null, 260, 12.02, 8.77); |
|||
yield return new Country("Madagascar", "SUB-SAHARAN AFRICA", 18595469, 587040, 31.7, 0.82, 0, 76.83, 800, 68.9, 3.6, 41.41, 11.11); |
|||
yield return new Country("Malawi", "SUB-SAHARAN AFRICA", 13013926, 118480, 109.8, 0, 0, 103.32, 600, 62.7, 7.9, 43.13, 19.33); |
|||
yield return new Country("Malaysia", "ASIA (EX. NEAR EAST)", 24385858, 329750, 74, 1.42, 0, 17.7, 9000, 88.7, 179, 22.86, 5.05); |
|||
yield return new Country("Maldives", "ASIA (EX. NEAR EAST)", 359008, 300, 1196.7, 214.67, 0, 56.52, 3900, 97.2, 90, 34.81, 7.06); |
|||
yield return new Country("Mali", "SUB-SAHARAN AFRICA", 11716829, 1240000, 9.5, 0, -0.33, 116.79, 900, 46.4, 6.4, 49.82, 16.89); |
|||
yield return new Country("Malta", "WESTERN EUROPE", 400214, 316, 1266.5, 62.28, 2.07, 3.89, 17700, 92.8, 505, 10.22, 8.1); |
|||
yield return new Country("Marshall Islands", "OCEANIA", 60422, 11854, 5.1, 3.12, -6.04, 29.45, 1600, 93.7, 91.2, 33.05, 4.78); |
|||
yield return new Country("Martinique", "LATIN AMER. & CARIB", 436131, 1100, 396.5, 31.82, -0.05, 7.09, 14400, 97.7, 394.4, 13.74, 6.48); |
|||
yield return new Country("Mauritania", "SUB-SAHARAN AFRICA", 3177388, 1030700, 3.1, 0.07, 0, 70.89, 1800, 41.7, 12.9, 40.99, 12.16); |
|||
yield return new Country("Mauritius", "SUB-SAHARAN AFRICA", 1240827, 2040, 608.3, 8.68, -0.9, 15.03, 11400, 85.6, 289.3, 15.43, 6.86); |
|||
yield return new Country("Mayotte", "SUB-SAHARAN AFRICA", 201234, 374, 538.1, 49.52, 6.78, 62.4, 2600,null, 49.7, 40.95, 7.7); |
|||
yield return new Country("Mexico", "LATIN AMER. & CARIB", 107449525, 1972550, 54.5, 0.47, -4.87, 20.91, 9000, 92.2, 181.6, 20.69, 4.74); |
|||
yield return new Country("Micronesia, Fed.St.", "OCEANIA", 108004, 702, 153.9, 870.66, -20.99, 30.21, 2000, 89, 114.8, 24.68, 4.75); |
|||
yield return new Country("Moldova", "C.W. OF IND. STATES", 4466706, 33843, 132, 0, -0.26, 40.42, 1800, 99.1, 208.1, 15.7, 12.64); |
|||
yield return new Country("Monaco", "WESTERN EUROPE", 32543, 2, 16271.5, 205, 7.75, 5.43, 27000, 99, 1035.6, 9.19, 12.91); |
|||
yield return new Country("Mongolia", "ASIA (EX. NEAR EAST)", 2832224, 1564116, 1.8, 0, 0, 53.79, 1800, 97.8, 55.1, 21.59, 6.95); |
|||
yield return new Country("Montserrat", "LATIN AMER. & CARIB", 9439, 102, 92.5, 39.22, 0, 7.35, 3400, 97,null, 17.59, 7.1); |
|||
yield return new Country("Morocco", "NORTHERN AFRICA", 33241259, 446550, 74.4, 0.41, -0.98, 41.62, 4000, 51.7, 40.4, 21.98, 5.58); |
|||
yield return new Country("Mozambique", "SUB-SAHARAN AFRICA", 19686505, 801590, 24.6, 0.31, 0, 130.79, 1200, 47.8, 3.5, 35.18, 21.35); |
|||
yield return new Country("Namibia", "SUB-SAHARAN AFRICA", 2044147, 825418, 2.5, 0.19, 0, 48.98, 7200, 84, 62.6, 24.32, 18.86); |
|||
yield return new Country("Nauru", "OCEANIA", 13287, 21, 632.7, 142.86, 0, 9.95, 5000,null, 143, 24.76, 6.7); |
|||
yield return new Country("Nepal", "ASIA (EX. NEAR EAST)", 28287147, 147181, 192.2, 0, 0, 66.98, 1400, 45.2, 15.9, 30.98, 9.31); |
|||
yield return new Country("Netherlands", "WESTERN EUROPE", 16491461, 41526, 397.1, 1.09, 2.91, 5.04, 28600, 99, 460.8, 10.9, 8.68); |
|||
yield return new Country("Netherlands Antilles", "LATIN AMER. & CARIB", 221736, 960, 231, 37.92, -0.41, 10.03, 11400, 96.7, 365.3, 14.78, 6.45); |
|||
yield return new Country("New Caledonia", "OCEANIA", 219246, 19060, 11.5, 11.83, 0, 7.72, 15000, 91, 252.2, 18.11, 5.69); |
|||
yield return new Country("New Zealand", "OCEANIA", 4076140, 268680, 15.2, 5.63, 4.05, 5.85, 21600, 99, 441.7, 13.76, 7.53); |
|||
yield return new Country("Nicaragua", "LATIN AMER. & CARIB", 5570129, 129494, 43, 0.7, -1.22, 29.11, 2300, 67.5, 39.7, 24.51, 4.45); |
|||
yield return new Country("Niger", "SUB-SAHARAN AFRICA", 12525094, 1267000, 9.9, 0, -0.67, 121.69, 800, 17.6, 1.9, 50.73, 20.91); |
|||
yield return new Country("Nigeria", "SUB-SAHARAN AFRICA", 131859731, 923768, 142.7, 0.09, 0.26, 98.8, 900, 68, 9.3, 40.43, 16.94); |
|||
yield return new Country("N. Mariana Islands", "OCEANIA", 82459, 477, 172.9, 310.69, 9.61, 7.11, 12500, 97, 254.7, 19.43, 2.29); |
|||
yield return new Country("Norway", "WESTERN EUROPE", 4610820, 323802, 14.2, 7.77, 1.74, 3.7, 37800, 100, 461.7, 11.46, 9.4); |
|||
yield return new Country("Oman", "NEAR EAST", 3102229, 212460, 14.6, 0.98, 0.28, 19.51, 13100, 75.8, 85.5, 36.24, 3.81); |
|||
yield return new Country("Pakistan", "ASIA (EX. NEAR EAST)", 165803560, 803940, 206.2, 0.13, -2.77, 72.44, 2100, 45.7, 31.8, 29.74, 8.23); |
|||
yield return new Country("Palau", "OCEANIA", 20579, 458, 44.9, 331.66, 2.85, 14.84, 9000, 92, 325.6, 18.03, 6.8); |
|||
yield return new Country("Panama", "LATIN AMER. & CARIB", 3191319, 78200, 40.8, 3.18, -0.91, 20.47, 6300, 92.6, 137.9, 21.74, 5.36); |
|||
yield return new Country("Papua New Guinea", "OCEANIA", 5670544, 462840, 12.3, 1.11, 0, 51.45, 2200, 64.6, 10.9, 29.36, 7.25); |
|||
yield return new Country("Paraguay", "LATIN AMER. & CARIB", 6506464, 406750, 16, 0, -0.08, 25.63, 4700, 94, 49.2, 29.1, 4.49); |
|||
yield return new Country("Peru", "LATIN AMER. & CARIB", 28302603, 1285220, 22, 0.19, -1.05, 31.94, 5100, 90.9, 79.5, 20.48, 6.23); |
|||
yield return new Country("Philippines", "ASIA (EX. NEAR EAST)", 89468677, 300000, 298.2, 12.1, -1.5, 23.51, 4600, 92.6, 38.4, 24.89, 5.41); |
|||
yield return new Country("Poland", "EASTERN EUROPE", 38536869, 312685, 123.3, 0.16, -0.49, 8.51, 11100, 99.8, 306.3, 9.85, 9.89); |
|||
yield return new Country("Portugal", "WESTERN EUROPE", 10605870, 92391, 114.8, 1.94, 3.57, 5.05, 18000, 93.3, 399.2, 10.72, 10.5); |
|||
yield return new Country("Puerto Rico", "LATIN AMER. & CARIB", 3927188, 13790, 284.8, 3.63, -1.46, 8.24, 16800, 94.1, 283.1, 12.77, 7.65); |
|||
yield return new Country("Qatar", "NEAR EAST", 885359, 11437, 77.4, 4.92, 16.29, 18.61, 21500, 82.5, 232, 15.56, 4.72); |
|||
yield return new Country("Reunion", "SUB-SAHARAN AFRICA", 787584, 2517, 312.9, 8.22, 0, 7.78, 5800, 88.9, 380.9, 18.9, 5.49); |
|||
yield return new Country("Romania", "EASTERN EUROPE", 22303552, 237500, 93.9, 0.09, -0.13, 26.43, 7000, 98.4, 196.9, 10.7, 11.77); |
|||
yield return new Country("Russia", "C.W. OF IND. STATES", 142893540, 17075200, 8.4, 0.22, 1.02, 15.39, 8900, 99.6, 280.6, 9.95, 14.65); |
|||
yield return new Country("Rwanda", "SUB-SAHARAN AFRICA", 8648248, 26338, 328.4, 0, 0, 91.23, 1300, 70.4, 2.7, 40.37, 16.09); |
|||
yield return new Country("Saint Helena", "SUB-SAHARAN AFRICA", 7502, 413, 18.2, 14.53, 0, 19, 2500, 97, 293.3, 12.13, 6.53); |
|||
yield return new Country("Saint Kitts & Nevis", "LATIN AMER. & CARIB", 39129, 261, 149.9, 51.72, -7.11, 14.49, 8800, 97, 638.9, 18.02, 8.33); |
|||
yield return new Country("Saint Lucia", "LATIN AMER. & CARIB", 168458, 616, 273.5, 25.65, -2.67, 13.53, 5400, 67, 303.3, 19.68, 5.08); |
|||
yield return new Country("St Pierre & Miquelon", "NORTHERN AMERICA", 7026, 242, 29, 49.59, -4.86, 7.54, 6900, 99, 683.2, 13.52, 6.83); |
|||
yield return new Country("Saint Vincent and the Grenadines", "LATIN AMER. & CARIB", 117848, 389, 303, 21.59, -7.64, 14.78, 2900, 96, 190.9, 16.18, 5.98); |
|||
yield return new Country("Samoa", "OCEANIA", 176908, 2944, 60.1, 13.69, -11.7, 27.71, 5600, 99.7, 75.2, 16.43, 6.62); |
|||
yield return new Country("San Marino", "WESTERN EUROPE", 29251, 61, 479.5, 0, 10.98, 5.73, 34600, 96, 704.3, 10.02, 8.17); |
|||
yield return new Country("Sao Tome & Principe", "SUB-SAHARAN AFRICA", 193413, 1001, 193.2, 20.88, -2.72, 43.11, 1200, 79.3, 36.2, 40.25, 6.47); |
|||
yield return new Country("Saudi Arabia", "NEAR EAST", 27019731, 1960582, 13.8, 0.13, -2.71, 13.24, 11800, 78.8, 140.6, 29.34, 2.58); |
|||
yield return new Country("Senegal", "SUB-SAHARAN AFRICA", 11987121, 196190, 61.1, 0.27, 0.2, 55.51, 1600, 40.2, 22.2, 32.78, 9.42); |
|||
yield return new Country("Serbia", "EASTERN EUROPE", 9396411, 88361, 106.3, 0, -1.33, 12.89, 2200, 93, 285.8,null,null); |
|||
yield return new Country("Seychelles", "SUB-SAHARAN AFRICA", 81541, 455, 179.2, 107.91, -5.69, 15.53, 7800, 58, 262.4, 16.03, 6.29); |
|||
yield return new Country("Sierra Leone", "SUB-SAHARAN AFRICA", 6005250, 71740, 83.7, 0.56, 0, 143.64, 500, 31.4, 4, 45.76, 23.03); |
|||
yield return new Country("Singapore", "ASIA (EX. NEAR EAST)", 4492150, 693, 6482.2, 27.85, 11.53, 2.29, 23700, 92.5, 411.4, 9.34, 4.28); |
|||
yield return new Country("Slovakia", "EASTERN EUROPE", 5439448, 48845, 111.4, 0, 0.3, 7.41, 13300,null, 220.1, 10.65, 9.45); |
|||
yield return new Country("Slovenia", "EASTERN EUROPE", 2010347, 20273, 99.2, 0.23, 1.12, 4.45, 19000, 99.7, 406.1, 8.98, 10.31); |
|||
yield return new Country("Solomon Islands", "OCEANIA", 552438, 28450, 19.4, 18.67, 0, 21.29, 1700,null, 13.4, 30.01, 3.92); |
|||
yield return new Country("Somalia", "SUB-SAHARAN AFRICA", 8863338, 637657, 13.9, 0.47, 5.37, 116.7, 500, 37.8, 11.3, 45.13, 16.63); |
|||
yield return new Country("South Africa", "SUB-SAHARAN AFRICA", 44187637, 1219912, 36.2, 0.23, -0.29, 61.81, 10700, 86.4, 107, 18.2, 22); |
|||
yield return new Country("Spain", "WESTERN EUROPE", 40397842, 504782, 80, 0.98, 0.99, 4.42, 22000, 97.9, 453.5, 10.06, 9.72); |
|||
yield return new Country("Sri Lanka", "ASIA (EX. NEAR EAST)", 20222240, 65610, 308.2, 2.04, -1.31, 14.35, 3700, 92.3, 61.5, 15.51, 6.52); |
|||
yield return new Country("Sudan", "SUB-SAHARAN AFRICA", 41236378, 2505810, 16.5, 0.03, -0.02, 62.5, 1900, 61.1, 16.3, 34.53, 8.97); |
|||
yield return new Country("Suriname", "LATIN AMER. & CARIB", 439117, 163270, 2.7, 0.24, -8.81, 23.57, 4000, 93, 184.7, 18.02, 7.27); |
|||
yield return new Country("Swaziland", "SUB-SAHARAN AFRICA", 1136334, 17363, 65.5, 0, 0, 69.27, 4900, 81.6, 30.8, 27.41, 29.74); |
|||
yield return new Country("Sweden", "WESTERN EUROPE", 9016596, 449964, 20, 0.72, 1.67, 2.77, 26800, 99, 715, 10.27, 10.31); |
|||
yield return new Country("Switzerland", "WESTERN EUROPE", 7523934, 41290, 182.2, 0, 4.05, 4.39, 32700, 99, 680.9, 9.71, 8.49); |
|||
yield return new Country("Syria", "NEAR EAST", 18881361, 185180, 102, 0.1, 0, 29.53, 3300, 76.9, 153.8, 27.76, 4.81); |
|||
yield return new Country("Taiwan", "ASIA (EX. NEAR EAST)", 23036087, 35980, 640.3, 4.35, 0, 6.4, 23400, 96.1, 591, 12.56, 6.48); |
|||
yield return new Country("Tajikistan", "C.W. OF IND. STATES", 7320815, 143100, 51.2, 0, -2.86, 110.76, 1000, 99.4, 33.5, 32.65, 8.25); |
|||
yield return new Country("Tanzania", "SUB-SAHARAN AFRICA", 37445392, 945087, 39.6, 0.15, -2.06, 98.54, 600, 78.2, 4, 37.71, 16.39); |
|||
yield return new Country("Thailand", "ASIA (EX. NEAR EAST)", 64631595, 514000, 125.7, 0.63, 0, 20.48, 7400, 92.6, 108.9, 13.87, 7.04); |
|||
yield return new Country("Togo", "SUB-SAHARAN AFRICA", 5548702, 56785, 97.7, 0.1, 0, 66.61, 1500, 60.9, 10.6, 37.01, 9.83); |
|||
yield return new Country("Tonga", "OCEANIA", 114689, 748, 153.3, 56.02, 0, 12.62, 2200, 98.5, 97.7, 25.37, 5.28); |
|||
yield return new Country("Trinidad & Tobago", "LATIN AMER. & CARIB", 1065842, 5128, 207.9, 7.06, -10.83, 24.31, 9500, 98.6, 303.5, 12.9, 10.57); |
|||
yield return new Country("Tunisia", "NORTHERN AFRICA", 10175014, 163610, 62.2, 0.7, -0.57, 24.77, 6900, 74.2, 123.6, 15.52, 5.13); |
|||
yield return new Country("Turkey", "NEAR EAST", 70413958, 780580, 90.2, 0.92, 0, 41.04, 6700, 86.5, 269.5, 16.62, 5.97); |
|||
yield return new Country("Turkmenistan", "C.W. OF IND. STATES", 5042920, 488100, 10.3, 0, -0.86, 73.08, 5800, 98, 74.6, 27.61, 8.6); |
|||
yield return new Country("Turks & Caicos Is", "LATIN AMER. & CARIB", 21152, 430, 49.2, 90.47, 11.68, 15.67, 9600, 98, 269.5, 21.84, 4.21); |
|||
yield return new Country("Tuvalu", "OCEANIA", 11810, 26, 454.2, 92.31, 0, 20.03, 1100,null, 59.3, 22.18, 7.11); |
|||
yield return new Country("Uganda", "SUB-SAHARAN AFRICA", 28195754, 236040, 119.5, 0, 0, 67.83, 1400, 69.9, 3.6, 47.35, 12.24); |
|||
yield return new Country("Ukraine", "C.W. OF IND. STATES", 46710816, 603700, 77.4, 0.46, -0.39, 20.34, 5400, 99.7, 259.9, 8.82, 14.39); |
|||
yield return new Country("United Arab Emirates", "NEAR EAST", 2602713, 82880, 31.4, 1.59, 1.03, 14.51, 23200, 77.9, 475.3, 18.96, 4.4); |
|||
yield return new Country("United Kingdom", "WESTERN EUROPE", 60609153, 244820, 247.6, 5.08, 2.19, 5.16, 27700, 99, 543.5, 10.71, 10.13); |
|||
yield return new Country("United States", "NORTHERN AMERICA", 298444215, 9631420, 31, 0.21, 3.41, 6.5, 37800, 97, 898, 14.14, 8.26); |
|||
yield return new Country("Uruguay", "LATIN AMER. & CARIB", 3431932, 176220, 19.5, 0.37, -0.32, 11.95, 12800, 98, 291.4, 13.91, 9.05); |
|||
yield return new Country("Uzbekistan", "C.W. OF IND. STATES", 27307134, 447400, 61, 0, -1.72, 71.1, 1700, 99.3, 62.9, 26.36, 7.84); |
|||
yield return new Country("Vanuatu", "OCEANIA", 208869, 12200, 17.1, 20.72, 0, 55.16, 2900, 53, 32.6, 22.72, 7.82); |
|||
yield return new Country("Venezuela", "LATIN AMER. & CARIB", 25730435, 912050, 28.2, 0.31, -0.04, 22.2, 4800, 93.4, 140.1, 18.71, 4.92); |
|||
yield return new Country("Vietnam", "ASIA (EX. NEAR EAST)", 84402966, 329560, 256.1, 1.05, -0.45, 25.95, 2500, 90.3, 187.7, 16.86, 6.22); |
|||
yield return new Country("Virgin Islands", "LATIN AMER. & CARIB", 108605, 1910, 56.9, 9.84, -8.94, 8.03, 17200,null, 652.8, 13.96, 6.43); |
|||
yield return new Country("Wallis and Futuna", "OCEANIA", 16025, 274, 58.5, 47.08,null,null, 3700, 50, 118.6,null,null); |
|||
yield return new Country("West Bank", "NEAR EAST", 2460492, 5860, 419.9, 0, 2.98, 19.62, 800,null, 145.2, 31.67, 3.92); |
|||
yield return new Country("Yemen", "NEAR EAST", 21456188, 527970, 40.6, 0.36, 0, 61.5, 800, 50.2, 37.2, 42.89, 8.3); |
|||
yield return new Country("Zambia", "SUB-SAHARAN AFRICA", 11502010, 752614, 15.3, 0, 0, 88.29, 800, 80.6, 8.2, 41, 19.93); |
|||
yield return new Country("Zimbabwe", "SUB-SAHARAN AFRICA", 12236805, 390580, 31.3, 0, 0, 67.69, 1900, 90.7, 26.8, 28.01, 21.84); |
|||
} |
|||
|
|||
static IReadOnlyList<Country> _all; |
|||
|
|||
public static IReadOnlyList<Country> All |
|||
{ |
|||
get |
|||
{ |
|||
if(_all == null) |
|||
{ |
|||
_all = GetCountries().ToList().AsReadOnly(); |
|||
} |
|||
|
|||
return _all; |
|||
} |
|||
|
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,41 @@ |
|||
namespace ControlCatalog.Models |
|||
{ |
|||
public class Country |
|||
{ |
|||
public string Name { get; private set; } |
|||
public string Region { get; private set; } |
|||
public int Population { get; private set; } |
|||
//Square Miles
|
|||
public int Area { get; private set; } |
|||
//Per Square Mile
|
|||
public double PopulationDensity { get; private set; } |
|||
//Coast / Area
|
|||
public double CoastLine { get; private set; } |
|||
public double? NetMigration { get; private set; } |
|||
//per 1000 births
|
|||
public double? InfantMortality { get; private set; } |
|||
public int GDP { get; private set; } |
|||
public double? LiteracyPercent { get; private set; } |
|||
//per 1000
|
|||
public double? Phones { get; private set; } |
|||
public double? BirthRate { get; private set; } |
|||
public double? DeathRate { get; private set; } |
|||
|
|||
public Country(string name, string region, int population, int area, double density, double coast, double? migration, |
|||
double? infantMorality, int gdp, double? literacy, double? phones, double? birth, double? death) |
|||
{ |
|||
Name = name; |
|||
Region = region; |
|||
Population = population; |
|||
Area = area; |
|||
PopulationDensity = density; |
|||
CoastLine = coast; |
|||
NetMigration = migration; |
|||
InfantMortality = infantMorality; |
|||
GDP = gdp; |
|||
LiteracyPercent = literacy; |
|||
BirthRate = birth; |
|||
DeathRate = death; |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,37 @@ |
|||
using Avalonia; |
|||
using Avalonia.Controls; |
|||
using Avalonia.Markup.Xaml; |
|||
using System; |
|||
using System.Collections; |
|||
using System.Collections.Generic; |
|||
using System.ComponentModel; |
|||
using System.Globalization; |
|||
using System.Linq; |
|||
using Avalonia.Data.Converters; |
|||
using Avalonia.Media; |
|||
|
|||
namespace ControlCatalog.Models |
|||
{ |
|||
public class GDPValueConverter : IValueConverter |
|||
{ |
|||
public object Convert(object value, Type targetType, object parameter, CultureInfo culture) |
|||
{ |
|||
if (value is int gdp) |
|||
{ |
|||
if (gdp <= 5000) |
|||
return Brushes.Orange; |
|||
else if (gdp <= 10000) |
|||
return Brushes.Yellow; |
|||
else |
|||
return Brushes.LightGreen; |
|||
} |
|||
|
|||
return value; |
|||
} |
|||
|
|||
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) |
|||
{ |
|||
throw new NotImplementedException(); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,98 @@ |
|||
using Avalonia; |
|||
using Avalonia.Controls; |
|||
using Avalonia.Markup.Xaml; |
|||
using System; |
|||
using System.Collections; |
|||
using System.Collections.Generic; |
|||
using System.ComponentModel; |
|||
using System.Globalization; |
|||
using System.Linq; |
|||
using Avalonia.Media; |
|||
|
|||
namespace ControlCatalog.Models |
|||
{ |
|||
public class Person : INotifyDataErrorInfo, INotifyPropertyChanged |
|||
{ |
|||
string _firstName; |
|||
string _lastName; |
|||
|
|||
public string FirstName |
|||
{ |
|||
get => _firstName; |
|||
set |
|||
{ |
|||
if (string.IsNullOrWhiteSpace(value)) |
|||
SetError(nameof(FirstName), "First Name Required"); |
|||
else |
|||
SetError(nameof(FirstName), null); |
|||
|
|||
_firstName = value; |
|||
OnPropertyChanged(nameof(FirstName)); |
|||
} |
|||
|
|||
} |
|||
|
|||
public string LastName |
|||
{ |
|||
get => _lastName; |
|||
set |
|||
{ |
|||
if (string.IsNullOrWhiteSpace(value)) |
|||
SetError(nameof(LastName), "Last Name Required"); |
|||
else |
|||
SetError(nameof(LastName), null); |
|||
|
|||
_lastName = value; |
|||
OnPropertyChanged(nameof(LastName)); |
|||
} |
|||
} |
|||
|
|||
Dictionary<string, List<string>> _errorLookup = new Dictionary<string, List<string>>(); |
|||
|
|||
void SetError(string propertyName, string error) |
|||
{ |
|||
if (string.IsNullOrEmpty(error)) |
|||
{ |
|||
if (_errorLookup.Remove(propertyName)) |
|||
OnErrorsChanged(propertyName); |
|||
} |
|||
else |
|||
{ |
|||
if (_errorLookup.TryGetValue(propertyName, out List<string> errorList)) |
|||
{ |
|||
errorList.Clear(); |
|||
errorList.Add(error); |
|||
} |
|||
else |
|||
{ |
|||
var errors = new List<string> { error }; |
|||
_errorLookup.Add(propertyName, errors); |
|||
} |
|||
|
|||
OnErrorsChanged(propertyName); |
|||
} |
|||
} |
|||
|
|||
public bool HasErrors => _errorLookup.Count > 0; |
|||
|
|||
public event EventHandler<DataErrorsChangedEventArgs> ErrorsChanged; |
|||
public event PropertyChangedEventHandler PropertyChanged; |
|||
|
|||
void OnErrorsChanged(string propertyName) |
|||
{ |
|||
ErrorsChanged?.Invoke(this, new DataErrorsChangedEventArgs(propertyName)); |
|||
} |
|||
void OnPropertyChanged(string propertyName) |
|||
{ |
|||
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); |
|||
} |
|||
|
|||
public IEnumerable GetErrors(string propertyName) |
|||
{ |
|||
if (_errorLookup.TryGetValue(propertyName, out List<string> errorList)) |
|||
return errorList; |
|||
else |
|||
return null; |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,41 @@ |
|||
<UserControl xmlns="https://github.com/avaloniaui" |
|||
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" |
|||
x:Class="ControlCatalog.Pages.ComboBoxPage"> |
|||
<StackPanel Orientation="Vertical" Spacing="4"> |
|||
<TextBlock Classes="h1">ComboBox</TextBlock> |
|||
<TextBlock Classes="h2">A drop-down list.</TextBlock> |
|||
|
|||
<StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Margin="0 16 0 0" Spacing="8"> |
|||
<ComboBox SelectedIndex="0"> |
|||
<ComboBoxItem>Inline Items</ComboBoxItem> |
|||
<ComboBoxItem>Inline Item 2</ComboBoxItem> |
|||
<ComboBoxItem>Inline Item 3</ComboBoxItem> |
|||
<ComboBoxItem>Inline Item 4</ComboBoxItem> |
|||
</ComboBox> |
|||
|
|||
<ComboBox SelectedIndex="0"> |
|||
<ComboBoxItem> |
|||
<Panel> |
|||
<Rectangle Fill="{DynamicResource ThemeAccentBrush}"/> |
|||
<TextBlock Margin="8">Control Items</TextBlock> |
|||
</Panel> |
|||
</ComboBoxItem> |
|||
<ComboBoxItem> |
|||
<Ellipse Width="50" Height="50" Fill="Yellow"/> |
|||
</ComboBoxItem> |
|||
<ComboBoxItem> |
|||
<TextBox Text="TextBox"/> |
|||
</ComboBoxItem> |
|||
</ComboBox> |
|||
|
|||
<ComboBox x:Name="fontComboBox" SelectedIndex="0"> |
|||
<ComboBox.ItemTemplate> |
|||
<DataTemplate> |
|||
<TextBlock Text="{Binding Name}" FontFamily="{Binding}" /> |
|||
</DataTemplate> |
|||
</ComboBox.ItemTemplate> |
|||
</ComboBox> |
|||
</StackPanel> |
|||
|
|||
</StackPanel> |
|||
</UserControl> |
|||
@ -0,0 +1,55 @@ |
|||
<UserControl xmlns="https://github.com/avaloniaui" |
|||
xmlns:local="clr-namespace:ControlCatalog.Models;assembly=ControlCatalog" |
|||
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" |
|||
x:Class="ControlCatalog.Pages.DataGridPage"> |
|||
<UserControl.Resources> |
|||
<local:GDPValueConverter x:Key="GDPConverter" /> |
|||
</UserControl.Resources> |
|||
<UserControl.Styles> |
|||
<Style Selector="DataGridCell.gdp"> |
|||
<Setter Property="FontWeight" Value="Bold" /> |
|||
<Setter Property="Background" Value="{Binding Path=GDP, Mode=OneWay, Converter={StaticResource GDPConverter}}" /> |
|||
</Style> |
|||
</UserControl.Styles> |
|||
<Grid RowDefinitions="Auto,Auto"> |
|||
<StackPanel Orientation="Vertical" Spacing="4" Grid.Row="0"> |
|||
<TextBlock Classes="h1">DataGrid</TextBlock> |
|||
<TextBlock Classes="h2">A control for displaying and interacting with a data source.</TextBlock> |
|||
</StackPanel> |
|||
<TabControl Grid.Row="1"> |
|||
<TabItem Header="DataGrid"> |
|||
<DataGrid Name="dataGrid1" Margin="12" CanUserResizeColumns="True" CanUserReorderColumns="True"> |
|||
<DataGrid.Columns> |
|||
<DataGridTextColumn Header="Country" Binding="{Binding Name}" Width="6*" /> |
|||
<DataGridTextColumn Header="Region" Binding="{Binding Region}" Width="4*" /> |
|||
<DataGridTextColumn Header="Population" Binding="{Binding Population}" Width="3*" /> |
|||
<DataGridTextColumn Header="Area" Binding="{Binding Area}" Width="3*" /> |
|||
<DataGridTextColumn Header="GDP" Binding="{Binding GDP}" Width="3*" CellStyleClasses="gdp" /> |
|||
</DataGrid.Columns> |
|||
</DataGrid> |
|||
</TabItem> |
|||
<TabItem Header="Grouping"> |
|||
<DataGrid Name="dataGridGrouping" Margin="12"> |
|||
<DataGrid.Columns> |
|||
<DataGridTextColumn Header="Country" Binding="{Binding Name}" Width="6*" /> |
|||
<DataGridTextColumn Header="Region" Binding="{Binding Region}" Width="4*" /> |
|||
<DataGridTextColumn Header="Population" Binding="{Binding Population}" Width="3*" /> |
|||
<DataGridTextColumn Header="Area" Binding="{Binding Area}" Width="3*" /> |
|||
<DataGridTextColumn Header="GDP" Binding="{Binding GDP}" Width="3*" /> |
|||
</DataGrid.Columns> |
|||
</DataGrid> |
|||
</TabItem> |
|||
<TabItem Header="Editable"> |
|||
<Grid RowDefinitions="*,Auto"> |
|||
<DataGrid Name="dataGridEdit" Margin="12" Grid.Row="0"> |
|||
<DataGrid.Columns> |
|||
<DataGridTextColumn Header="First Name" Binding="{Binding FirstName}" Width="2*" /> |
|||
<DataGridTextColumn Header="Last" Binding="{Binding LastName}" Width="*" /> |
|||
</DataGrid.Columns> |
|||
</DataGrid> |
|||
<Button Grid.Row="1" Name="btnAdd" Margin="12,0,12,12" Content="Add" HorizontalAlignment="Right" /> |
|||
</Grid> |
|||
</TabItem> |
|||
</TabControl> |
|||
</Grid> |
|||
</UserControl> |
|||
@ -0,0 +1,52 @@ |
|||
using System.Collections.Generic; |
|||
using Avalonia.Controls; |
|||
using Avalonia.Markup.Xaml; |
|||
using ControlCatalog.Models; |
|||
using Avalonia.Collections; |
|||
|
|||
namespace ControlCatalog.Pages |
|||
{ |
|||
public class DataGridPage : UserControl |
|||
{ |
|||
public DataGridPage() |
|||
{ |
|||
this.InitializeComponent(); |
|||
var dg1 = this.FindControl<DataGrid>("dataGrid1"); |
|||
dg1.IsReadOnly = true; |
|||
|
|||
var collectionView1 = new DataGridCollectionView(Countries.All); |
|||
//collectionView.GroupDescriptions.Add(new PathGroupDescription("Region"));
|
|||
|
|||
dg1.Items = collectionView1; |
|||
|
|||
var dg2 = this.FindControl<DataGrid>("dataGridGrouping"); |
|||
dg2.IsReadOnly = true; |
|||
|
|||
var collectionView2 = new DataGridCollectionView(Countries.All); |
|||
collectionView2.GroupDescriptions.Add(new DataGridPathGroupDescription("Region")); |
|||
|
|||
dg2.Items = collectionView2; |
|||
|
|||
var dg3 = this.FindControl<DataGrid>("dataGridEdit"); |
|||
dg3.IsReadOnly = false; |
|||
|
|||
var items = new List<Person> |
|||
{ |
|||
new Person { FirstName = "John", LastName = "Doe" }, |
|||
new Person { FirstName = "Elizabeth", LastName = "Thomas" }, |
|||
new Person { FirstName = "Zack", LastName = "Ward" } |
|||
}; |
|||
var collectionView3 = new DataGridCollectionView(items); |
|||
|
|||
dg3.Items = collectionView3; |
|||
|
|||
var addButton = this.FindControl<Button>("btnAdd"); |
|||
addButton.Click += (a, b) => collectionView3.AddNew(); |
|||
} |
|||
|
|||
private void InitializeComponent() |
|||
{ |
|||
AvaloniaXamlLoader.Load(this); |
|||
} |
|||
} |
|||
} |
|||
@ -1,42 +0,0 @@ |
|||
<UserControl xmlns="https://github.com/avaloniaui" |
|||
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" |
|||
x:Class="ControlCatalog.Pages.DropDownPage"> |
|||
<StackPanel Orientation="Vertical" Spacing="4"> |
|||
<TextBlock Classes="h1">DropDown</TextBlock> |
|||
<TextBlock Classes="h2">A drop-down list.</TextBlock> |
|||
|
|||
<StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Margin="0 16 0 0" Spacing="8"> |
|||
<DropDown SelectedIndex="0"> |
|||
<DropDownItem>Inline Items</DropDownItem> |
|||
<DropDownItem>Inline Item 2</DropDownItem> |
|||
<DropDownItem>Inline Item 3</DropDownItem> |
|||
<DropDownItem>Inline Item 4</DropDownItem> |
|||
</DropDown> |
|||
|
|||
<DropDown SelectedIndex="0"> |
|||
<DropDownItem> |
|||
<Panel> |
|||
<Rectangle Fill="{DynamicResource ThemeAccentBrush}"/> |
|||
<TextBlock Margin="8">Control Items</TextBlock> |
|||
</Panel> |
|||
</DropDownItem> |
|||
<DropDownItem> |
|||
<Ellipse Width="50" Height="50" Fill="Yellow"/> |
|||
</DropDownItem> |
|||
<DropDownItem> |
|||
<TextBox Text="TextBox"/> |
|||
</DropDownItem> |
|||
</DropDown> |
|||
|
|||
|
|||
<DropDown x:Name="fontDropDown" SelectedIndex="0"> |
|||
<DropDown.ItemTemplate> |
|||
<DataTemplate> |
|||
<TextBlock Text="{Binding Name}" FontFamily="{Binding}" /> |
|||
</DataTemplate> |
|||
</DropDown.ItemTemplate> |
|||
</DropDown> |
|||
</StackPanel> |
|||
|
|||
</StackPanel> |
|||
</UserControl> |
|||
@ -0,0 +1,20 @@ |
|||
// Copyright (c) The Avalonia Project. All rights reserved.
|
|||
// Licensed under the MIT license. See licence.md file in the project root for full license information.
|
|||
|
|||
using Avalonia.Controls; |
|||
using Avalonia.Threading; |
|||
|
|||
namespace Avalonia |
|||
{ |
|||
public static class AppBuilderExtensions |
|||
{ |
|||
public static TAppBuilder UseDataGrid<TAppBuilder>(this TAppBuilder builder) |
|||
where TAppBuilder : AppBuilderBase<TAppBuilder>, new() |
|||
{ |
|||
// Portable.Xaml doesn't correctly load referenced assemblies and so doesn't
|
|||
// find `DataGrid` when loading XAML. Call this method from AppBuilder as a
|
|||
// temporary workaround until we fix XAML.
|
|||
return builder; |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,20 @@ |
|||
<Project Sdk="Microsoft.NET.Sdk"> |
|||
<PropertyGroup> |
|||
<TargetFramework>netstandard2.0</TargetFramework> |
|||
</PropertyGroup> |
|||
<ItemGroup> |
|||
<ProjectReference Include="..\Avalonia.Animation\Avalonia.Animation.csproj" /> |
|||
<ProjectReference Include="..\Avalonia.Base\Avalonia.Base.csproj" /> |
|||
<ProjectReference Include="..\Avalonia.Input\Avalonia.Input.csproj" /> |
|||
<ProjectReference Include="..\Avalonia.Interactivity\Avalonia.Interactivity.csproj" /> |
|||
<ProjectReference Include="..\Avalonia.Layout\Avalonia.Layout.csproj" /> |
|||
<ProjectReference Include="..\Avalonia.Remote.Protocol\Avalonia.Remote.Protocol.csproj" /> |
|||
<ProjectReference Include="..\Avalonia.Visuals\Avalonia.Visuals.csproj" /> |
|||
<ProjectReference Include="..\Avalonia.Styling\Avalonia.Styling.csproj" /> |
|||
<ProjectReference Include="..\Markup\Avalonia.Markup\Avalonia.Markup.csproj" /> |
|||
<ProjectReference Include="..\Avalonia.Controls\Avalonia.Controls.csproj" /> |
|||
</ItemGroup> |
|||
<Import Project="..\..\build\Rx.props" /> |
|||
<Import Project="..\..\build\EmbedXaml.props" /> |
|||
<Import Project="..\..\build\JetBrains.Annotations.props" /> |
|||
</Project> |
|||
File diff suppressed because it is too large
File diff suppressed because it is too large
@ -0,0 +1,259 @@ |
|||
// Copyright (c) The Avalonia Project. All rights reserved.
|
|||
// Licensed under the MIT license. See licence.md file in the project root for full license information.
|
|||
|
|||
using System; |
|||
using System.Collections; |
|||
using System.Collections.Generic; |
|||
using System.Globalization; |
|||
using System.Linq; |
|||
using System.Text; |
|||
using Avalonia.Controls; |
|||
using Avalonia.Controls.Utils; |
|||
using Avalonia.Utilities; |
|||
|
|||
namespace Avalonia.Collections |
|||
{ |
|||
public abstract class DataGridSortDescription |
|||
{ |
|||
public virtual string PropertyPath => null; |
|||
public virtual bool Descending => false; |
|||
public bool HasPropertyPath => !String.IsNullOrEmpty(PropertyPath); |
|||
public abstract IComparer<object> Comparer { get; } |
|||
|
|||
public virtual IOrderedEnumerable<object> OrderBy(IEnumerable<object> seq) |
|||
{ |
|||
return seq.OrderBy(o => o, Comparer); |
|||
} |
|||
public virtual IOrderedEnumerable<object> ThenBy(IOrderedEnumerable<object> seq) |
|||
{ |
|||
return seq.ThenBy(o => o, Comparer); |
|||
} |
|||
|
|||
internal virtual DataGridSortDescription SwitchSortDirection() |
|||
{ |
|||
return this; |
|||
} |
|||
|
|||
internal virtual void Initialize(Type itemType) |
|||
{ } |
|||
|
|||
private static object InvokePath(object item, string propertyPath, Type propertyType) |
|||
{ |
|||
object propertyValue = TypeHelper.GetNestedPropertyValue(item, propertyPath, propertyType, out Exception exception); |
|||
if (exception != null) |
|||
{ |
|||
throw exception; |
|||
} |
|||
return propertyValue; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Creates a comparer class that takes in a CultureInfo as a parameter,
|
|||
/// which it will use when comparing strings.
|
|||
/// </summary>
|
|||
private class CultureSensitiveComparer : Comparer<object> |
|||
{ |
|||
/// <summary>
|
|||
/// Private accessor for the CultureInfo of our comparer
|
|||
/// </summary>
|
|||
private CultureInfo _culture; |
|||
|
|||
/// <summary>
|
|||
/// Creates a comparer which will respect the CultureInfo
|
|||
/// that is passed in when comparing strings.
|
|||
/// </summary>
|
|||
/// <param name="culture">The CultureInfo to use in string comparisons</param>
|
|||
public CultureSensitiveComparer(CultureInfo culture) |
|||
: base() |
|||
{ |
|||
_culture = culture ?? CultureInfo.InvariantCulture; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Compares two objects and returns a value indicating whether one is less than, equal to or greater than the other.
|
|||
/// </summary>
|
|||
/// <param name="x">first item to compare</param>
|
|||
/// <param name="y">second item to compare</param>
|
|||
/// <returns>Negative number if x is less than y, zero if equal, and a positive number if x is greater than y</returns>
|
|||
/// <remarks>
|
|||
/// Compares the 2 items using the specified CultureInfo for string and using the default object comparer for all other objects.
|
|||
/// </remarks>
|
|||
public override int Compare(object x, object y) |
|||
{ |
|||
if (x == null) |
|||
{ |
|||
if (y != null) |
|||
{ |
|||
return -1; |
|||
} |
|||
return 0; |
|||
} |
|||
if (y == null) |
|||
{ |
|||
return 1; |
|||
} |
|||
|
|||
// at this point x and y are not null
|
|||
if (x.GetType() == typeof(string) && y.GetType() == typeof(string)) |
|||
{ |
|||
return _culture.CompareInfo.Compare((string)x, (string)y); |
|||
} |
|||
else |
|||
{ |
|||
return Comparer<object>.Default.Compare(x, y); |
|||
} |
|||
} |
|||
|
|||
} |
|||
|
|||
private class DataGridPathSortDescription : DataGridSortDescription |
|||
{ |
|||
private readonly bool _descending; |
|||
private readonly string _propertyPath; |
|||
private readonly Lazy<CultureSensitiveComparer> _cultureSensitiveComparer; |
|||
private readonly Lazy<IComparer<object>> _comparer; |
|||
private Type _propertyType; |
|||
private IComparer _internalComparer; |
|||
private IComparer<object> _internalComparerTyped; |
|||
private IComparer<object> InternalComparer |
|||
{ |
|||
get |
|||
{ |
|||
if (_internalComparerTyped == null && _internalComparer != null) |
|||
{ |
|||
if (_internalComparerTyped is IComparer<object> c) |
|||
_internalComparerTyped = c; |
|||
else |
|||
_internalComparerTyped = Comparer<object>.Create((x, y) => _internalComparer.Compare(x, y)); |
|||
} |
|||
|
|||
return _internalComparerTyped; |
|||
} |
|||
} |
|||
|
|||
public override string PropertyPath => _propertyPath; |
|||
public override IComparer<object> Comparer => _comparer.Value; |
|||
public override bool Descending => _descending; |
|||
|
|||
public DataGridPathSortDescription(string propertyPath, bool descending, CultureInfo culture) |
|||
{ |
|||
_propertyPath = propertyPath; |
|||
_descending = descending; |
|||
_cultureSensitiveComparer = new Lazy<CultureSensitiveComparer>(() => new CultureSensitiveComparer(culture ?? CultureInfo.CurrentCulture)); |
|||
_comparer = new Lazy<IComparer<object>>(() => Comparer<object>.Create((x, y) => Compare(x, y))); |
|||
} |
|||
private DataGridPathSortDescription(DataGridPathSortDescription inner, bool descending) |
|||
{ |
|||
_propertyPath = inner._propertyPath; |
|||
_descending = descending; |
|||
_propertyType = inner._propertyType; |
|||
_cultureSensitiveComparer = inner._cultureSensitiveComparer; |
|||
_internalComparer = inner._internalComparer; |
|||
_internalComparerTyped = inner._internalComparerTyped; |
|||
|
|||
_comparer = new Lazy<IComparer<object>>(() => Comparer<object>.Create((x, y) => Compare(x, y))); |
|||
} |
|||
|
|||
private object GetValue(object o) |
|||
{ |
|||
if (o == null) |
|||
return null; |
|||
|
|||
if (HasPropertyPath) |
|||
return InvokePath(o, _propertyPath, _propertyType); |
|||
|
|||
if (_propertyType == o.GetType()) |
|||
return o; |
|||
else |
|||
return null; |
|||
} |
|||
|
|||
private IComparer GetComparerForType(Type type) |
|||
{ |
|||
if (type == typeof(string)) |
|||
return _cultureSensitiveComparer.Value; |
|||
else |
|||
return (typeof(Comparer<>).MakeGenericType(type).GetProperty("Default")).GetValue(null, null) as IComparer; |
|||
} |
|||
private Type GetPropertyType(object o) |
|||
{ |
|||
return o.GetType().GetNestedPropertyType(_propertyPath); |
|||
} |
|||
|
|||
private int Compare(object x, object y) |
|||
{ |
|||
int result = 0; |
|||
|
|||
if(_propertyType == null) |
|||
{ |
|||
if(x != null) |
|||
{ |
|||
_propertyType = GetPropertyType(x); |
|||
} |
|||
if(_propertyType == null && y != null) |
|||
{ |
|||
_propertyType = GetPropertyType(y); |
|||
} |
|||
} |
|||
|
|||
object v1 = GetValue(x); |
|||
object v2 = GetValue(y); |
|||
|
|||
if (_propertyType != null && _internalComparer == null) |
|||
_internalComparer = GetComparerForType(_propertyType); |
|||
|
|||
result = _internalComparer?.Compare(v1, v2) ?? 0; |
|||
|
|||
if (_descending) |
|||
return -result; |
|||
else |
|||
return result; |
|||
} |
|||
|
|||
internal override void Initialize(Type itemType) |
|||
{ |
|||
base.Initialize(itemType); |
|||
|
|||
if(_propertyType == null) |
|||
_propertyType = itemType.GetNestedPropertyType(_propertyPath); |
|||
if (_internalComparer == null && _propertyType != null) |
|||
_internalComparer = GetComparerForType(_propertyType); |
|||
} |
|||
public override IOrderedEnumerable<object> OrderBy(IEnumerable<object> seq) |
|||
{ |
|||
if(_descending) |
|||
{ |
|||
return seq.OrderByDescending(o => GetValue(o), InternalComparer); |
|||
} |
|||
else |
|||
{ |
|||
return seq.OrderBy(o => GetValue(o), InternalComparer); |
|||
} |
|||
} |
|||
public override IOrderedEnumerable<object> ThenBy(IOrderedEnumerable<object> seq) |
|||
{ |
|||
if (_descending) |
|||
{ |
|||
return seq.ThenByDescending(o => GetValue(o), InternalComparer); |
|||
} |
|||
else |
|||
{ |
|||
return seq.ThenByDescending(o => GetValue(o), InternalComparer); |
|||
} |
|||
} |
|||
|
|||
internal override DataGridSortDescription SwitchSortDirection() |
|||
{ |
|||
return new DataGridPathSortDescription(this, !_descending); |
|||
} |
|||
} |
|||
|
|||
public static DataGridSortDescription FromPath(string propertyPath, bool descending = false, CultureInfo culture = null) |
|||
{ |
|||
return new DataGridPathSortDescription(propertyPath, descending, culture); |
|||
} |
|||
} |
|||
|
|||
public class DataGridSortDescriptionCollection : AvaloniaList<DataGridSortDescription> |
|||
{ } |
|||
} |
|||
@ -0,0 +1,233 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Collections; |
|||
using System.Collections.Generic; |
|||
using System.Collections.Specialized; |
|||
using System.Globalization; |
|||
using System.Text; |
|||
|
|||
namespace Avalonia.Collections |
|||
{ |
|||
/// <summary>Provides data for the <see cref="E:Avalonia.Collections.ICollectionView.CurrentChanging" /> event.</summary>
|
|||
public class DataGridCurrentChangingEventArgs : EventArgs |
|||
{ |
|||
private bool _cancel; |
|||
private bool _isCancelable; |
|||
|
|||
/// <summary>Initializes a new instance of the <see cref="T:System.ComponentModel.CurrentChangingEventArgs" /> class and sets the <see cref="P:System.ComponentModel.CurrentChangingEventArgs.IsCancelable" /> property to true.</summary>
|
|||
public DataGridCurrentChangingEventArgs() |
|||
{ |
|||
Initialize(true); |
|||
} |
|||
|
|||
/// <summary>Initializes a new instance of the <see cref="T:System.ComponentModel.CurrentChangingEventArgs" /> class and sets the <see cref="P:System.ComponentModel.CurrentChangingEventArgs.IsCancelable" /> property to the specified value.</summary>
|
|||
/// <param name="isCancelable">true to disable the ability to cancel a <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> change; false to enable cancellation.</param>
|
|||
public DataGridCurrentChangingEventArgs(bool isCancelable) |
|||
{ |
|||
Initialize(isCancelable); |
|||
} |
|||
|
|||
private void Initialize(bool isCancelable) |
|||
{ |
|||
_isCancelable = isCancelable; |
|||
} |
|||
|
|||
/// <summary>Gets a value that indicates whether the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> change can be canceled. </summary>
|
|||
/// <returns>true if the event can be canceled; false if the event cannot be canceled.</returns>
|
|||
public bool IsCancelable |
|||
{ |
|||
get |
|||
{ |
|||
return _isCancelable; |
|||
} |
|||
} |
|||
|
|||
/// <summary>Gets or sets a value that indicates whether the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> change should be canceled. </summary>
|
|||
/// <returns>true if the event should be canceled; otherwise, false. The default is false.</returns>
|
|||
/// <exception cref="T:System.InvalidOperationException">The <see cref="P:System.ComponentModel.CurrentChangingEventArgs.IsCancelable" /> property value is false.</exception>
|
|||
public bool Cancel |
|||
{ |
|||
get |
|||
{ |
|||
return _cancel; |
|||
} |
|||
set |
|||
{ |
|||
if (IsCancelable) |
|||
_cancel = value; |
|||
else if (value) |
|||
throw new InvalidOperationException("CurrentChanging Cannot Be Canceled"); |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>Enables collections to have the functionalities of current record management, custom sorting, filtering, and grouping.</summary>
|
|||
internal interface IDataGridCollectionView : IEnumerable, INotifyCollectionChanged |
|||
{ |
|||
/// <summary>Gets or sets the cultural information for any operations of the view that may differ by culture, such as sorting.</summary>
|
|||
/// <returns>The culture information to use during culture-sensitive operations. </returns>
|
|||
CultureInfo Culture { get; set; } |
|||
|
|||
/// <summary>Indicates whether the specified item belongs to this collection view. </summary>
|
|||
/// <returns>true if the item belongs to this collection view; otherwise, false.</returns>
|
|||
/// <param name="item">The object to check. </param>
|
|||
bool Contains(object item); |
|||
|
|||
/// <summary>Gets the underlying collection.</summary>
|
|||
/// <returns>The underlying collection.</returns>
|
|||
IEnumerable SourceCollection { get; } |
|||
|
|||
/// <summary>Gets or sets a callback that is used to determine whether an item is appropriate for inclusion in the view. </summary>
|
|||
/// <returns>A method that is used to determine whether an item is appropriate for inclusion in the view.</returns>
|
|||
Func<object, bool> Filter { get; set; } |
|||
|
|||
/// <summary>Gets a value that indicates whether this view supports filtering by way of the <see cref="P:System.ComponentModel.ICollectionView.Filter" /> property.</summary>
|
|||
/// <returns>true if this view supports filtering; otherwise, false.</returns>
|
|||
bool CanFilter { get; } |
|||
|
|||
/// <summary>Gets a collection of <see cref="T:System.ComponentModel.SortDescription" /> instances that describe how the items in the collection are sorted in the view.</summary>
|
|||
/// <returns>A collection of values that describe how the items in the collection are sorted in the view.</returns>
|
|||
DataGridSortDescriptionCollection SortDescriptions { get; } |
|||
|
|||
/// <summary>Gets a value that indicates whether this view supports sorting by way of the <see cref="P:System.ComponentModel.ICollectionView.SortDescriptions" /> property.</summary>
|
|||
/// <returns>true if this view supports sorting; otherwise, false.</returns>
|
|||
bool CanSort { get; } |
|||
|
|||
/// <summary>Gets a value that indicates whether this view supports grouping by way of the <see cref="P:System.ComponentModel.ICollectionView.GroupDescriptions" /> property.</summary>
|
|||
/// <returns>true if this view supports grouping; otherwise, false.</returns>
|
|||
bool CanGroup { get; } |
|||
|
|||
/// <summary>Gets a collection of <see cref="T:System.ComponentModel.GroupDescription" /> objects that describe how the items in the collection are grouped in the view. </summary>
|
|||
/// <returns>A collection of objects that describe how the items in the collection are grouped in the view. </returns>
|
|||
//ObservableCollection<GroupDescription> GroupDescriptions { get; }
|
|||
|
|||
bool IsGrouping { get; } |
|||
int GroupingDepth { get; } |
|||
string GetGroupingPropertyNameAtDepth(int level); |
|||
|
|||
/// <summary>Gets the top-level groups.</summary>
|
|||
/// <returns>A read-only collection of the top-level groups or null if there are no groups.</returns>
|
|||
IAvaloniaReadOnlyList<object> Groups { get; } |
|||
|
|||
/// <summary>Gets a value that indicates whether the view is empty.</summary>
|
|||
/// <returns>true if the view is empty; otherwise, false.</returns>
|
|||
bool IsEmpty { get; } |
|||
|
|||
/// <summary>Recreates the view.</summary>
|
|||
void Refresh(); |
|||
|
|||
/// <summary>Enters a defer cycle that you can use to merge changes to the view and delay automatic refresh. </summary>
|
|||
/// <returns>The typical usage is to create a using scope with an implementation of this method and then include multiple view-changing calls within the scope. The implementation should delay automatic refresh until after the using scope exits. </returns>
|
|||
IDisposable DeferRefresh(); |
|||
|
|||
/// <summary>Gets the current item in the view.</summary>
|
|||
/// <returns>The current item in the view or null if there is no current item.</returns>
|
|||
object CurrentItem { get; } |
|||
|
|||
/// <summary>Gets the ordinal position of the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> in the view.</summary>
|
|||
/// <returns>The ordinal position of the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> in the view.</returns>
|
|||
int CurrentPosition { get; } |
|||
|
|||
/// <summary>Gets a value that indicates whether the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> of the view is beyond the end of the collection.</summary>
|
|||
/// <returns>true if the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> of the view is beyond the end of the collection; otherwise, false.</returns>
|
|||
bool IsCurrentAfterLast { get; } |
|||
|
|||
/// <summary>Gets a value that indicates whether the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> of the view is beyond the start of the collection.</summary>
|
|||
/// <returns>true if the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> of the view is beyond the start of the collection; otherwise, false.</returns>
|
|||
bool IsCurrentBeforeFirst { get; } |
|||
|
|||
/// <summary>Sets the first item in the view as the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" />.</summary>
|
|||
/// <returns>true if the resulting <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> is an item in the view; otherwise, false.</returns>
|
|||
bool MoveCurrentToFirst(); |
|||
|
|||
/// <summary>Sets the last item in the view as the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" />.</summary>
|
|||
/// <returns>true if the resulting <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> is an item in the view; otherwise, false.</returns>
|
|||
bool MoveCurrentToLast(); |
|||
|
|||
/// <summary>Sets the item after the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> in the view as the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" />.</summary>
|
|||
/// <returns>true if the resulting <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> is an item in the view; otherwise, false.</returns>
|
|||
bool MoveCurrentToNext(); |
|||
|
|||
/// <summary>Sets the item before the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> in the view to the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" />.</summary>
|
|||
/// <returns>true if the resulting <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> is an item in the view; otherwise, false.</returns>
|
|||
bool MoveCurrentToPrevious(); |
|||
|
|||
/// <summary>Sets the specified item in the view as the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" />.</summary>
|
|||
/// <returns>true if the resulting <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> is an item in the view; otherwise, false.</returns>
|
|||
/// <param name="item">The item to set as the current item.</param>
|
|||
bool MoveCurrentTo(object item); |
|||
|
|||
/// <summary>Sets the item at the specified index to be the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> in the view.</summary>
|
|||
/// <returns>true if the resulting <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> is an item in the view; otherwise, false.</returns>
|
|||
/// <param name="position">The index to set the <see cref="P:System.ComponentModel.ICollectionView.CurrentItem" /> to.</param>
|
|||
bool MoveCurrentToPosition(int position); |
|||
|
|||
/// <summary>Occurs before the current item changes.</summary>
|
|||
event EventHandler<DataGridCurrentChangingEventArgs> CurrentChanging; |
|||
|
|||
/// <summary>Occurs after the current item has been changed.</summary>
|
|||
event EventHandler CurrentChanged; |
|||
} |
|||
internal interface IDataGridEditableCollectionView |
|||
{ |
|||
/// <summary>Gets a value that indicates whether a new item can be added to the collection.</summary>
|
|||
/// <returns>true if a new item can be added to the collection; otherwise, false.</returns>
|
|||
bool CanAddNew { get; } |
|||
|
|||
/// <summary>Adds a new item to the underlying collection.</summary>
|
|||
/// <returns>The new item that is added to the collection.</returns>
|
|||
object AddNew(); |
|||
|
|||
/// <summary>Ends the add transaction and saves the pending new item.</summary>
|
|||
void CommitNew(); |
|||
|
|||
/// <summary>Ends the add transaction and discards the pending new item.</summary>
|
|||
void CancelNew(); |
|||
|
|||
/// <summary>Gets a value that indicates whether an add transaction is in progress.</summary>
|
|||
/// <returns>true if an add transaction is in progress; otherwise, false.</returns>
|
|||
bool IsAddingNew { get; } |
|||
|
|||
/// <summary>Gets the item that is being added during the current add transaction.</summary>
|
|||
/// <returns>The item that is being added if <see cref="P:System.ComponentModel.IEditableCollectionView.IsAddingNew" /> is true; otherwise, null.</returns>
|
|||
object CurrentAddItem { get; } |
|||
|
|||
/// <summary>Gets a value that indicates whether an item can be removed from the collection.</summary>
|
|||
/// <returns>true if an item can be removed from the collection; otherwise, false.</returns>
|
|||
bool CanRemove { get; } |
|||
|
|||
/// <summary>Removes the item at the specified position from the collection.</summary>
|
|||
/// <param name="index">Index of item to remove.</param>
|
|||
void RemoveAt(int index); |
|||
|
|||
/// <summary>Removes the specified item from the collection.</summary>
|
|||
/// <param name="item">The item to remove.</param>
|
|||
void Remove(object item); |
|||
|
|||
/// <summary>Begins an edit transaction on the specified item.</summary>
|
|||
/// <param name="item">The item to edit.</param>
|
|||
void EditItem(object item); |
|||
|
|||
/// <summary>Ends the edit transaction and saves the pending changes.</summary>
|
|||
void CommitEdit(); |
|||
|
|||
/// <summary>Ends the edit transaction and, if possible, restores the original value of the item.</summary>
|
|||
void CancelEdit(); |
|||
|
|||
/// <summary>Gets a value that indicates whether the collection view can discard pending changes and restore the original values of an edited object.</summary>
|
|||
/// <returns>true if the collection view can discard pending changes and restore the original values of an edited object; otherwise, false.</returns>
|
|||
bool CanCancelEdit { get; } |
|||
|
|||
/// <summary>Gets a value that indicates whether an edit transaction is in progress.</summary>
|
|||
/// <returns>true if an edit transaction is in progress; otherwise, false.</returns>
|
|||
bool IsEditingItem { get; } |
|||
|
|||
/// <summary>Gets the item in the collection that is being edited.</summary>
|
|||
/// <returns>The item that is being edited if <see cref="P:System.ComponentModel.IEditableCollectionView.IsEditingItem" /> is true; otherwise, null.</returns>
|
|||
object CurrentEditItem { get; } |
|||
} |
|||
} |
|||
File diff suppressed because it is too large
@ -0,0 +1,145 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Data; |
|||
using Avalonia.Utilities; |
|||
using System; |
|||
using System.Reactive.Disposables; |
|||
using System.Reactive.Subjects; |
|||
using Avalonia.Reactive; |
|||
using System.Diagnostics; |
|||
using Avalonia.Controls.Utils; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// Represents a <see cref="T:Avalonia.Controls.DataGrid" /> column that can
|
|||
/// bind to a property in the grid's data source.
|
|||
/// </summary>
|
|||
public abstract class DataGridBoundColumn : DataGridColumn |
|||
{ |
|||
private IBinding _binding; |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the binding that associates the column with a property in the data source.
|
|||
/// </summary>
|
|||
//TODO Binding
|
|||
public virtual IBinding Binding |
|||
{ |
|||
get |
|||
{ |
|||
return _binding; |
|||
} |
|||
set |
|||
{ |
|||
if (_binding != value) |
|||
{ |
|||
if (OwningGrid != null && !OwningGrid.CommitEdit(DataGridEditingUnit.Row, exitEditingMode: true)) |
|||
{ |
|||
// Edited value couldn't be committed, so we force a CancelEdit
|
|||
OwningGrid.CancelEdit(DataGridEditingUnit.Row, raiseEvents: false); |
|||
} |
|||
|
|||
_binding = value; |
|||
|
|||
if (_binding != null) |
|||
{ |
|||
if(_binding is Avalonia.Data.Binding binding) |
|||
{ |
|||
// Force the TwoWay binding mode if there is a Path present. TwoWay binding requires a Path.
|
|||
if (!String.IsNullOrEmpty(binding.Path)) |
|||
{ |
|||
binding.Mode = BindingMode.TwoWay; |
|||
} |
|||
|
|||
if (binding.Converter == null) |
|||
{ |
|||
binding.Converter = DataGridValueConverter.Instance; |
|||
} |
|||
} |
|||
|
|||
// Apply the new Binding to existing rows in the DataGrid
|
|||
if (OwningGrid != null) |
|||
{ |
|||
OwningGrid.OnColumnBindingChanged(this); |
|||
} |
|||
} |
|||
|
|||
RemoveEditingElement(); |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The binding that will be used to get or set cell content for the clipboard.
|
|||
/// If the base ClipboardContentBinding is not explicitly set, this will return the value of Binding.
|
|||
/// </summary>
|
|||
public override IBinding ClipboardContentBinding |
|||
{ |
|||
get |
|||
{ |
|||
return base.ClipboardContentBinding ?? Binding; |
|||
} |
|||
set |
|||
{ |
|||
base.ClipboardContentBinding = value; |
|||
} |
|||
} |
|||
|
|||
//TODO Rename
|
|||
//TODO Validation
|
|||
protected sealed override IControl GenerateEditingElement(DataGridCell cell, object dataItem, out ICellEditBinding editBinding) |
|||
{ |
|||
IControl element = GenerateEditingElementDirect(cell, dataItem); |
|||
editBinding = null; |
|||
|
|||
if (Binding != null) |
|||
{ |
|||
editBinding = BindEditingElement(element, BindingTarget, Binding); |
|||
} |
|||
|
|||
return element; |
|||
} |
|||
|
|||
private static ICellEditBinding BindEditingElement(IAvaloniaObject target, AvaloniaProperty property, IBinding binding) |
|||
{ |
|||
var result = binding.Initiate(target, property, enableDataValidation: true); |
|||
|
|||
if (result != null) |
|||
{ |
|||
if(result.Subject != null) |
|||
{ |
|||
var bindingHelper = new CellEditBinding(result.Subject); |
|||
var instanceBinding = new InstancedBinding(bindingHelper.InternalSubject, result.Mode, result.Priority); |
|||
|
|||
BindingOperations.Apply(target, property, instanceBinding, null); |
|||
return bindingHelper; |
|||
} |
|||
|
|||
BindingOperations.Apply(target, property, result, null); |
|||
} |
|||
|
|||
return null; |
|||
} |
|||
|
|||
protected abstract IControl GenerateEditingElementDirect(DataGridCell cell, object dataItem); |
|||
|
|||
internal AvaloniaProperty BindingTarget { get; set; } |
|||
|
|||
internal void SetHeaderFromBinding() |
|||
{ |
|||
if (OwningGrid != null && OwningGrid.DataConnection.DataType != null |
|||
&& Header == null && Binding != null && Binding is Binding binding |
|||
&& !String.IsNullOrWhiteSpace(binding.Path)) |
|||
{ |
|||
string header = OwningGrid.DataConnection.DataType.GetDisplayName(binding.Path); |
|||
if (header != null) |
|||
{ |
|||
Header = header; |
|||
} |
|||
} |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,222 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Controls.Primitives; |
|||
using Avalonia.Controls.Shapes; |
|||
using Avalonia.Input; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// Represents an individual <see cref="T:Avalonia.Controls.DataGrid" /> cell.
|
|||
/// </summary>
|
|||
public class DataGridCell : ContentControl |
|||
{ |
|||
private const string DATAGRIDCELL_elementRightGridLine = "PART_RightGridLine"; |
|||
|
|||
private Rectangle _rightGridLine; |
|||
private DataGridColumn _owningColumn; |
|||
|
|||
bool _isValid; |
|||
|
|||
public static readonly DirectProperty<DataGridCell, bool> IsValidProperty = |
|||
AvaloniaProperty.RegisterDirect<DataGridCell, bool>( |
|||
nameof(IsValid), |
|||
o => o.IsValid); |
|||
|
|||
static DataGridCell() |
|||
{ |
|||
PointerPressedEvent.AddClassHandler<DataGridCell>( |
|||
x => x.DataGridCell_PointerPressed, handledEventsToo: true); |
|||
} |
|||
public DataGridCell() |
|||
{ } |
|||
|
|||
public bool IsValid |
|||
{ |
|||
get { return _isValid; } |
|||
internal set { SetAndRaise(IsValidProperty, ref _isValid, value); } |
|||
} |
|||
|
|||
internal DataGridColumn OwningColumn |
|||
{ |
|||
get => _owningColumn; |
|||
set |
|||
{ |
|||
if (_owningColumn != value) |
|||
{ |
|||
_owningColumn = value; |
|||
OnOwningColumnSet(value); |
|||
} |
|||
} |
|||
} |
|||
internal DataGridRow OwningRow |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal DataGrid OwningGrid |
|||
{ |
|||
get { return OwningRow?.OwningGrid ?? OwningColumn?.OwningGrid; } |
|||
} |
|||
|
|||
internal double ActualRightGridLineWidth |
|||
{ |
|||
get { return _rightGridLine?.Bounds.Width ?? 0; } |
|||
} |
|||
|
|||
internal int ColumnIndex |
|||
{ |
|||
get { return OwningColumn?.Index ?? -1; } |
|||
} |
|||
|
|||
internal int RowIndex |
|||
{ |
|||
get { return OwningRow?.Index ?? -1; } |
|||
} |
|||
|
|||
internal bool IsCurrent |
|||
{ |
|||
get |
|||
{ |
|||
return OwningGrid.CurrentColumnIndex == OwningColumn.Index && |
|||
OwningGrid.CurrentSlot == OwningRow.Slot; |
|||
} |
|||
} |
|||
|
|||
private bool IsEdited |
|||
{ |
|||
get |
|||
{ |
|||
return OwningGrid.EditingRow == OwningRow && |
|||
OwningGrid.EditingColumnIndex == ColumnIndex; |
|||
} |
|||
} |
|||
|
|||
private bool IsMouseOver |
|||
{ |
|||
get |
|||
{ |
|||
return OwningRow != null && OwningRow.MouseOverColumnIndex == ColumnIndex; |
|||
} |
|||
set |
|||
{ |
|||
if (value != IsMouseOver) |
|||
{ |
|||
if (value) |
|||
{ |
|||
OwningRow.MouseOverColumnIndex = ColumnIndex; |
|||
} |
|||
else |
|||
{ |
|||
OwningRow.MouseOverColumnIndex = null; |
|||
} |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Builds the visual tree for the cell control when a new template is applied.
|
|||
/// </summary>
|
|||
protected override void OnTemplateApplied(TemplateAppliedEventArgs e) |
|||
{ |
|||
base.OnTemplateApplied(e); |
|||
|
|||
UpdatePseudoClasses(); |
|||
_rightGridLine = e.NameScope.Find<Rectangle>(DATAGRIDCELL_elementRightGridLine); |
|||
if (_rightGridLine != null && OwningColumn == null) |
|||
{ |
|||
// Turn off the right GridLine for filler cells
|
|||
_rightGridLine.IsVisible = false; |
|||
} |
|||
else |
|||
{ |
|||
EnsureGridLine(null); |
|||
} |
|||
|
|||
} |
|||
protected override void OnPointerEnter(PointerEventArgs e) |
|||
{ |
|||
base.OnPointerEnter(e); |
|||
|
|||
if (OwningRow != null) |
|||
{ |
|||
IsMouseOver = true; |
|||
} |
|||
} |
|||
protected override void OnPointerLeave(PointerEventArgs e) |
|||
{ |
|||
base.OnPointerLeave(e); |
|||
|
|||
if (OwningRow != null) |
|||
{ |
|||
IsMouseOver = false; |
|||
} |
|||
} |
|||
|
|||
//TODO TabStop
|
|||
private void DataGridCell_PointerPressed(PointerPressedEventArgs e) |
|||
{ |
|||
// OwningGrid is null for TopLeftHeaderCell and TopRightHeaderCell because they have no OwningRow
|
|||
if (OwningGrid != null) |
|||
{ |
|||
OwningGrid.OnCellPointerPressed(new DataGridCellPointerPressedEventArgs(this, OwningRow, OwningColumn, e)); |
|||
if (e.MouseButton == MouseButton.Left) |
|||
{ |
|||
if (!e.Handled) |
|||
//if (!e.Handled && OwningGrid.IsTabStop)
|
|||
{ |
|||
OwningGrid.Focus(); |
|||
} |
|||
if (OwningRow != null) |
|||
{ |
|||
e.Handled = OwningGrid.UpdateStateOnMouseLeftButtonDown(e, ColumnIndex, OwningRow.Slot, !e.Handled); |
|||
OwningGrid.UpdatedStateOnMouseLeftButtonDown = true; |
|||
} |
|||
} |
|||
} |
|||
} |
|||
|
|||
internal void UpdatePseudoClasses() |
|||
{ |
|||
|
|||
} |
|||
|
|||
// Makes sure the right gridline has the proper stroke and visibility. If lastVisibleColumn is specified, the
|
|||
// right gridline will be collapsed if this cell belongs to the lastVisibileColumn and there is no filler column
|
|||
internal void EnsureGridLine(DataGridColumn lastVisibleColumn) |
|||
{ |
|||
if (OwningGrid != null && _rightGridLine != null) |
|||
{ |
|||
if (OwningGrid.VerticalGridLinesBrush != null && OwningGrid.VerticalGridLinesBrush != _rightGridLine.Fill) |
|||
{ |
|||
_rightGridLine.Fill = OwningGrid.VerticalGridLinesBrush; |
|||
} |
|||
|
|||
bool newVisibility = |
|||
(OwningGrid.GridLinesVisibility == DataGridGridLinesVisibility.Vertical || OwningGrid.GridLinesVisibility == DataGridGridLinesVisibility.All) |
|||
&& (OwningGrid.ColumnsInternal.FillerColumn.IsActive || OwningColumn != lastVisibleColumn); |
|||
|
|||
if (newVisibility != _rightGridLine.IsVisible) |
|||
{ |
|||
_rightGridLine.IsVisible = newVisibility; |
|||
} |
|||
} |
|||
} |
|||
|
|||
private void OnOwningColumnSet(DataGridColumn column) |
|||
{ |
|||
if (column == null) |
|||
{ |
|||
Classes.Clear(); |
|||
} |
|||
else |
|||
{ |
|||
Classes.Replace(column.CellStyleClasses); |
|||
} |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,71 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Collections; |
|||
using System.Collections.Generic; |
|||
using System.Diagnostics; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class DataGridCellCollection |
|||
{ |
|||
private List<DataGridCell> _cells; |
|||
private DataGridRow _owningRow; |
|||
|
|||
internal event EventHandler<DataGridCellEventArgs> CellAdded; |
|||
internal event EventHandler<DataGridCellEventArgs> CellRemoved; |
|||
|
|||
public DataGridCellCollection(DataGridRow owningRow) |
|||
{ |
|||
_owningRow = owningRow; |
|||
_cells = new List<DataGridCell>(); |
|||
} |
|||
|
|||
public int Count |
|||
{ |
|||
get |
|||
{ |
|||
return _cells.Count; |
|||
} |
|||
} |
|||
|
|||
public IEnumerator GetEnumerator() |
|||
{ |
|||
return _cells.GetEnumerator(); |
|||
} |
|||
|
|||
public void Insert(int cellIndex, DataGridCell cell) |
|||
{ |
|||
Debug.Assert(cellIndex >= 0 && cellIndex <= _cells.Count); |
|||
Debug.Assert(cell != null); |
|||
|
|||
cell.OwningRow = _owningRow; |
|||
_cells.Insert(cellIndex, cell); |
|||
|
|||
CellAdded?.Invoke(this, new DataGridCellEventArgs(cell)); |
|||
} |
|||
|
|||
public void RemoveAt(int cellIndex) |
|||
{ |
|||
DataGridCell dataGridCell = _cells[cellIndex]; |
|||
_cells.RemoveAt(cellIndex); |
|||
dataGridCell.OwningRow = null; |
|||
CellRemoved?.Invoke(this, new DataGridCellEventArgs(dataGridCell)); |
|||
} |
|||
|
|||
public DataGridCell this[int index] |
|||
{ |
|||
get |
|||
{ |
|||
if (index < 0 || index >= _cells.Count) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueMustBeBetween("index", "Index", 0, true, _cells.Count, false); |
|||
} |
|||
return _cells[index]; |
|||
} |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,57 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System.Globalization; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class DataGridCellCoordinates |
|||
{ |
|||
public DataGridCellCoordinates(int columnIndex, int slot) |
|||
{ |
|||
ColumnIndex = columnIndex; |
|||
Slot = slot; |
|||
} |
|||
|
|||
public DataGridCellCoordinates(DataGridCellCoordinates dataGridCellCoordinates) : this(dataGridCellCoordinates.ColumnIndex, dataGridCellCoordinates.Slot) |
|||
{ |
|||
} |
|||
|
|||
public int ColumnIndex |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public int Slot |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public override bool Equals(object o) |
|||
{ |
|||
if (o is DataGridCellCoordinates dataGridCellCoordinates) |
|||
{ |
|||
return dataGridCellCoordinates.ColumnIndex == ColumnIndex && dataGridCellCoordinates.Slot == Slot; |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
// There is build warning if this is missiing
|
|||
public override int GetHashCode() |
|||
{ |
|||
return base.GetHashCode(); |
|||
} |
|||
|
|||
#if DEBUG
|
|||
public override string ToString() |
|||
{ |
|||
return "DataGridCellCoordinates {ColumnIndex = " + ColumnIndex.ToString(CultureInfo.CurrentCulture) + |
|||
", Slot = " + Slot.ToString(CultureInfo.CurrentCulture) + "}"; |
|||
} |
|||
#endif
|
|||
} |
|||
} |
|||
@ -0,0 +1,316 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Input; |
|||
using Avalonia.Interactivity; |
|||
using Avalonia.Layout; |
|||
using System; |
|||
using System.Collections.Specialized; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// Represents a <see cref="T:System.Windows.Controls.DataGrid" /> column that hosts
|
|||
/// <see cref="T:System.Windows.Controls.CheckBox" /> controls in its cells.
|
|||
/// </summary>
|
|||
public class DataGridCheckBoxColumn : DataGridBoundColumn |
|||
{ |
|||
|
|||
private bool _beganEditWithKeyboard; |
|||
private bool _isThreeState; |
|||
private CheckBox _currentCheckBox; |
|||
private DataGrid _owningGrid; |
|||
|
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:System.Windows.Controls.DataGridCheckBoxColumn" /> class.
|
|||
/// </summary>
|
|||
public DataGridCheckBoxColumn() |
|||
{ |
|||
BindingTarget = CheckBox.IsCheckedProperty; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets a value that indicates whether the hosted <see cref="T:System.Windows.Controls.CheckBox" /> controls allow three states or two.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// true if the hosted controls support three states; false if they support two states. The default is false.
|
|||
/// </returns>
|
|||
public bool IsThreeState |
|||
{ |
|||
get |
|||
{ |
|||
return _isThreeState; |
|||
} |
|||
set |
|||
{ |
|||
if (_isThreeState != value) |
|||
{ |
|||
_isThreeState = value; |
|||
NotifyPropertyChanged(nameof(IsThreeState)); |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Causes the column cell being edited to revert to the specified value.
|
|||
/// </summary>
|
|||
/// <param name="editingElement">
|
|||
/// The element that the column displays for a cell in editing mode.
|
|||
/// </param>
|
|||
/// <param name="uneditedValue">
|
|||
/// The previous, unedited value in the cell being edited.
|
|||
/// </param>
|
|||
protected override void CancelCellEdit(IControl editingElement, object uneditedValue) |
|||
{ |
|||
if (editingElement is CheckBox editingCheckBox) |
|||
{ |
|||
editingCheckBox.IsChecked = (bool?)uneditedValue; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets a <see cref="T:System.Windows.Controls.CheckBox" /> control that is bound to the column's <see cref="P:System.Windows.Controls.DataGridBoundColumn.Binding" /> property value.
|
|||
/// </summary>
|
|||
/// <param name="cell">
|
|||
/// The cell that will contain the generated element.
|
|||
/// </param>
|
|||
/// <param name="dataItem">
|
|||
/// The data item represented by the row that contains the intended cell.
|
|||
/// </param>
|
|||
/// <returns>
|
|||
/// A new <see cref="T:System.Windows.Controls.CheckBox" /> control that is bound to the column's <see cref="P:System.Windows.Controls.DataGridBoundColumn.Binding" /> property value.
|
|||
/// </returns>
|
|||
protected override IControl GenerateEditingElementDirect(DataGridCell cell, object dataItem) |
|||
{ |
|||
var checkBox = new CheckBox |
|||
{ |
|||
Margin = new Thickness(0) |
|||
}; |
|||
ConfigureCheckBox(checkBox); |
|||
return checkBox; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets a read-only <see cref="T:System.Windows.Controls.CheckBox" /> control that is bound to the column's <see cref="P:System.Windows.Controls.DataGridBoundColumn.Binding" /> property value.
|
|||
/// </summary>
|
|||
/// <param name="cell">
|
|||
/// The cell that will contain the generated element.
|
|||
/// </param>
|
|||
/// <param name="dataItem">
|
|||
/// The data item represented by the row that contains the intended cell.
|
|||
/// </param>
|
|||
/// <returns>
|
|||
/// A new, read-only <see cref="T:System.Windows.Controls.CheckBox" /> control that is bound to the column's <see cref="P:System.Windows.Controls.DataGridBoundColumn.Binding" /> property value.
|
|||
/// </returns>
|
|||
protected override IControl GenerateElement(DataGridCell cell, object dataItem) |
|||
{ |
|||
bool isEnabled = false; |
|||
CheckBox checkBoxElement = new CheckBox(); |
|||
if (EnsureOwningGrid()) |
|||
{ |
|||
if (cell.RowIndex != -1 && cell.ColumnIndex != -1 && |
|||
cell.OwningRow != null && |
|||
cell.OwningRow.Slot == this.OwningGrid.CurrentSlot && |
|||
cell.ColumnIndex == this.OwningGrid.CurrentColumnIndex) |
|||
{ |
|||
isEnabled = true; |
|||
if (_currentCheckBox != null) |
|||
{ |
|||
_currentCheckBox.IsEnabled = false; |
|||
} |
|||
_currentCheckBox = checkBoxElement; |
|||
} |
|||
} |
|||
checkBoxElement.IsEnabled = isEnabled; |
|||
checkBoxElement.IsHitTestVisible = false; |
|||
ConfigureCheckBox(checkBoxElement); |
|||
if (Binding != null) |
|||
{ |
|||
checkBoxElement.Bind(BindingTarget, Binding); |
|||
} |
|||
return checkBoxElement; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when a cell in the column enters editing mode.
|
|||
/// </summary>
|
|||
/// <param name="editingElement">
|
|||
/// The element that the column displays for a cell in editing mode.
|
|||
/// </param>
|
|||
/// <param name="editingEventArgs">
|
|||
/// Information about the user gesture that is causing a cell to enter editing mode.
|
|||
/// </param>
|
|||
/// <returns>
|
|||
/// The unedited value.
|
|||
/// </returns>
|
|||
protected override object PrepareCellForEdit(IControl editingElement, RoutedEventArgs editingEventArgs) |
|||
{ |
|||
if (editingElement is CheckBox editingCheckBox) |
|||
{ |
|||
bool? uneditedValue = editingCheckBox.IsChecked; |
|||
bool editValue = false; |
|||
if(editingEventArgs is PointerPressedEventArgs args) |
|||
{ |
|||
// Editing was triggered by a mouse click
|
|||
Point position = args.GetPosition(editingCheckBox); |
|||
Rect rect = new Rect(0, 0, editingCheckBox.Bounds.Width, editingCheckBox.Bounds.Height); |
|||
editValue = rect.Contains(position); |
|||
} |
|||
else if (_beganEditWithKeyboard) |
|||
{ |
|||
// Editing began by a user pressing spacebar
|
|||
editValue = true; |
|||
_beganEditWithKeyboard = false; |
|||
} |
|||
|
|||
if (editValue) |
|||
{ |
|||
// User clicked the checkbox itself or pressed space, let's toggle the IsChecked value
|
|||
if (editingCheckBox.IsThreeState) |
|||
{ |
|||
switch (editingCheckBox.IsChecked) |
|||
{ |
|||
case false: |
|||
editingCheckBox.IsChecked = true; |
|||
break; |
|||
case true: |
|||
editingCheckBox.IsChecked = null; |
|||
break; |
|||
case null: |
|||
editingCheckBox.IsChecked = false; |
|||
break; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
editingCheckBox.IsChecked = !editingCheckBox.IsChecked; |
|||
} |
|||
} |
|||
return uneditedValue; |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called by the DataGrid control when this column asks for its elements to be
|
|||
/// updated, because its CheckBoxContent or IsThreeState property changed.
|
|||
/// </summary>
|
|||
protected internal override void RefreshCellContent(IControl element, string propertyName) |
|||
{ |
|||
if (element == null) |
|||
{ |
|||
throw new ArgumentNullException("element"); |
|||
} |
|||
if(element is CheckBox checkBox) |
|||
{ |
|||
checkBox.IsThreeState = IsThreeState; |
|||
} |
|||
else |
|||
{ |
|||
throw DataGridError.DataGrid.ValueIsNotAnInstanceOf("element", typeof(CheckBox)); |
|||
} |
|||
} |
|||
|
|||
private void Columns_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e) |
|||
{ |
|||
if (e.Action == NotifyCollectionChangedAction.Remove && e.OldItems.Contains(this) && _owningGrid != null) |
|||
{ |
|||
_owningGrid.Columns.CollectionChanged -= Columns_CollectionChanged; |
|||
_owningGrid.CurrentCellChanged -= OwningGrid_CurrentCellChanged; |
|||
_owningGrid.KeyDown -= OwningGrid_KeyDown; |
|||
_owningGrid.LoadingRow -= OwningGrid_LoadingRow; |
|||
_owningGrid = null; |
|||
} |
|||
} |
|||
|
|||
private void ConfigureCheckBox(CheckBox checkBox) |
|||
{ |
|||
checkBox.HorizontalAlignment = HorizontalAlignment.Center; |
|||
checkBox.VerticalAlignment = VerticalAlignment.Center; |
|||
checkBox.IsThreeState = IsThreeState; |
|||
} |
|||
|
|||
private bool EnsureOwningGrid() |
|||
{ |
|||
if (OwningGrid != null) |
|||
{ |
|||
if (OwningGrid != _owningGrid) |
|||
{ |
|||
_owningGrid = OwningGrid; |
|||
_owningGrid.Columns.CollectionChanged += Columns_CollectionChanged; |
|||
_owningGrid.CurrentCellChanged += OwningGrid_CurrentCellChanged; |
|||
_owningGrid.KeyDown += OwningGrid_KeyDown; |
|||
_owningGrid.LoadingRow += OwningGrid_LoadingRow; |
|||
} |
|||
return true; |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
private void OwningGrid_CurrentCellChanged(object sender, EventArgs e) |
|||
{ |
|||
if (_currentCheckBox != null) |
|||
{ |
|||
_currentCheckBox.IsEnabled = false; |
|||
} |
|||
if (OwningGrid != null && OwningGrid.CurrentColumn == this |
|||
&& OwningGrid.IsSlotVisible(OwningGrid.CurrentSlot)) |
|||
{ |
|||
if (OwningGrid.DisplayData.GetDisplayedElement(OwningGrid.CurrentSlot) is DataGridRow row) |
|||
{ |
|||
CheckBox checkBox = GetCellContent(row) as CheckBox; |
|||
if (checkBox != null) |
|||
{ |
|||
checkBox.IsEnabled = true; |
|||
} |
|||
_currentCheckBox = checkBox; |
|||
} |
|||
} |
|||
} |
|||
|
|||
private void OwningGrid_KeyDown(object sender, KeyEventArgs e) |
|||
{ |
|||
if (e.Key == Key.Space && OwningGrid != null && |
|||
OwningGrid.CurrentColumn == this) |
|||
{ |
|||
if (OwningGrid.DisplayData.GetDisplayedElement(OwningGrid.CurrentSlot) is DataGridRow row) |
|||
{ |
|||
CheckBox checkBox = GetCellContent(row) as CheckBox; |
|||
if (checkBox == _currentCheckBox) |
|||
{ |
|||
_beganEditWithKeyboard = true; |
|||
OwningGrid.BeginEdit(); |
|||
return; |
|||
} |
|||
} |
|||
} |
|||
_beganEditWithKeyboard = false; |
|||
} |
|||
|
|||
private void OwningGrid_LoadingRow(object sender, DataGridRowEventArgs e) |
|||
{ |
|||
if (OwningGrid != null) |
|||
{ |
|||
if (GetCellContent(e.Row) is CheckBox checkBox) |
|||
{ |
|||
if (OwningGrid.CurrentColumnIndex == Index && OwningGrid.CurrentSlot == e.Row.Slot) |
|||
{ |
|||
if (_currentCheckBox != null) |
|||
{ |
|||
_currentCheckBox.IsEnabled = false; |
|||
} |
|||
checkBox.IsEnabled = true; |
|||
_currentCheckBox = checkBox; |
|||
} |
|||
else |
|||
{ |
|||
checkBox.IsEnabled = false; |
|||
} |
|||
} |
|||
} |
|||
} |
|||
|
|||
} |
|||
} |
|||
@ -0,0 +1,204 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Collections.Generic; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// Defines modes that indicates how DataGrid content is copied to the Clipboard.
|
|||
/// </summary>
|
|||
public enum DataGridClipboardCopyMode |
|||
{ |
|||
/// <summary>
|
|||
/// Disable the DataGrid's ability to copy selected items as text.
|
|||
/// </summary>
|
|||
None, |
|||
|
|||
/// <summary>
|
|||
/// Enable the DataGrid's ability to copy selected items as text, but do not include
|
|||
/// the column header content as the first line in the text that gets copied to the Clipboard.
|
|||
/// </summary>
|
|||
ExcludeHeader, |
|||
|
|||
/// <summary>
|
|||
/// Enable the DataGrid's ability to copy selected items as text, and include
|
|||
/// the column header content as the first line in the text that gets copied to the Clipboard.
|
|||
/// </summary>
|
|||
IncludeHeader |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// This structure encapsulate the cell information necessary when clipboard content is prepared.
|
|||
/// </summary>
|
|||
public struct DataGridClipboardCellContent |
|||
{ |
|||
|
|||
private DataGridColumn _column; |
|||
private object _content; |
|||
private object _item; |
|||
|
|||
/// <summary>
|
|||
/// Creates a new DataGridClipboardCellValue structure containing information about a DataGrid cell.
|
|||
/// </summary>
|
|||
/// <param name="item">DataGrid row item containing the cell.</param>
|
|||
/// <param name="column">DataGridColumn containing the cell.</param>
|
|||
/// <param name="content">DataGrid cell value.</param>
|
|||
public DataGridClipboardCellContent(object item, DataGridColumn column, object content) |
|||
{ |
|||
this._item = item; |
|||
this._column = column; |
|||
this._content = content; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// DataGridColumn containing the cell.
|
|||
/// </summary>
|
|||
public DataGridColumn Column |
|||
{ |
|||
get |
|||
{ |
|||
return _column; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Cell content.
|
|||
/// </summary>
|
|||
public object Content |
|||
{ |
|||
get |
|||
{ |
|||
return _content; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// DataGrid row item containing the cell.
|
|||
/// </summary>
|
|||
public object Item |
|||
{ |
|||
get |
|||
{ |
|||
return _item; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Field-by-field comparison to avoid reflection-based ValueType.Equals.
|
|||
/// </summary>
|
|||
/// <param name="obj">DataGridClipboardCellContent to compare.</param>
|
|||
/// <returns>True iff this and data are equal</returns>
|
|||
public override bool Equals(object obj) |
|||
{ |
|||
if(obj is DataGridClipboardCellContent content) |
|||
{ |
|||
return (((_column == content._column) && (_content == content._content)) && (_item == content._item)); |
|||
} |
|||
else |
|||
{ |
|||
return false; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns a deterministic hash code.
|
|||
/// </summary>
|
|||
/// <returns>Hash value.</returns>
|
|||
public override int GetHashCode() |
|||
{ |
|||
return ((_column.GetHashCode() ^ _content.GetHashCode()) ^ _item.GetHashCode()); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Field-by-field comparison to avoid reflection-based ValueType.Equals.
|
|||
/// </summary>
|
|||
/// <param name="clipboardCellContent1">The first DataGridClipboardCellContent.</param>
|
|||
/// <param name="clipboardCellContent2">The second DataGridClipboardCellContent.</param>
|
|||
/// <returns>True iff clipboardCellContent1 and clipboardCellContent2 are equal.</returns>
|
|||
public static bool operator ==(DataGridClipboardCellContent clipboardCellContent1, DataGridClipboardCellContent clipboardCellContent2) |
|||
{ |
|||
return (((clipboardCellContent1._column == clipboardCellContent2._column) && (clipboardCellContent1._content == clipboardCellContent2._content)) && (clipboardCellContent1._item == clipboardCellContent2._item)); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Field-by-field comparison to avoid reflection-based ValueType.Equals.
|
|||
/// </summary>
|
|||
/// <param name="clipboardCellContent1">The first DataGridClipboardCellContent.</param>
|
|||
/// <param name="clipboardCellContent2">The second DataGridClipboardCellContent.</param>
|
|||
/// <returns>True iff clipboardCellContent1 and clipboardCellContent2 are NOT equal.</returns>
|
|||
public static bool operator !=(DataGridClipboardCellContent clipboardCellContent1, DataGridClipboardCellContent clipboardCellContent2) |
|||
{ |
|||
if ((clipboardCellContent1._column == clipboardCellContent2._column) && (clipboardCellContent1._content == clipboardCellContent2._content)) |
|||
{ |
|||
return (clipboardCellContent1._item != clipboardCellContent2._item); |
|||
} |
|||
return true; |
|||
} |
|||
|
|||
} |
|||
|
|||
/// <summary>
|
|||
/// This class encapsulates a selected row's information necessary for the CopyingRowClipboardContent event.
|
|||
/// </summary>
|
|||
public class DataGridRowClipboardEventArgs : EventArgs |
|||
{ |
|||
|
|||
private List<DataGridClipboardCellContent> _clipboardRowContent; |
|||
private bool _isColumnHeadersRow; |
|||
private object _item; |
|||
|
|||
/// <summary>
|
|||
/// Creates a DataGridRowClipboardEventArgs object and initializes the properties.
|
|||
/// </summary>
|
|||
/// <param name="item">The row's associated data item.</param>
|
|||
/// <param name="isColumnHeadersRow">Whether or not this EventArgs is for the column headers.</param>
|
|||
internal DataGridRowClipboardEventArgs(object item, bool isColumnHeadersRow) |
|||
{ |
|||
_isColumnHeadersRow = isColumnHeadersRow; |
|||
_item = item; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// This list should be used to modify, add ot remove a cell content before it gets stored into the clipboard.
|
|||
/// </summary>
|
|||
public List<DataGridClipboardCellContent> ClipboardRowContent |
|||
{ |
|||
get |
|||
{ |
|||
if (_clipboardRowContent == null) |
|||
{ |
|||
_clipboardRowContent = new List<DataGridClipboardCellContent>(); |
|||
} |
|||
return _clipboardRowContent; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// This property is true when the ClipboardRowContent represents column headers, in which case the Item is null.
|
|||
/// </summary>
|
|||
public bool IsColumnHeadersRow |
|||
{ |
|||
get |
|||
{ |
|||
return _isColumnHeadersRow; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// DataGrid row item used for proparing the ClipboardRowContent.
|
|||
/// </summary>
|
|||
public object Item |
|||
{ |
|||
get |
|||
{ |
|||
return _item; |
|||
} |
|||
} |
|||
|
|||
} |
|||
|
|||
} |
|||
File diff suppressed because it is too large
@ -0,0 +1,586 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Collections.Generic; |
|||
using System.Collections.ObjectModel; |
|||
using System.Diagnostics; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class DataGridColumnCollection : ObservableCollection<DataGridColumn> |
|||
{ |
|||
private DataGrid _owningGrid; |
|||
|
|||
public DataGridColumnCollection(DataGrid owningGrid) |
|||
{ |
|||
_owningGrid = owningGrid; |
|||
ItemsInternal = new List<DataGridColumn>(); |
|||
FillerColumn = new DataGridFillerColumn(owningGrid); |
|||
RowGroupSpacerColumn = new DataGridFillerColumn(owningGrid); |
|||
DisplayIndexMap = new List<int>(); |
|||
} |
|||
|
|||
internal int AutogeneratedColumnCount |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal List<int> DisplayIndexMap |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal DataGridFillerColumn FillerColumn |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
internal DataGridColumn FirstColumn |
|||
{ |
|||
get |
|||
{ |
|||
return GetFirstColumn(null /*isVisible*/, null /*isFrozen*/, null /*isReadOnly*/); |
|||
} |
|||
} |
|||
|
|||
internal DataGridColumn FirstVisibleColumn |
|||
{ |
|||
get |
|||
{ |
|||
return GetFirstColumn(true /*isVisible*/, null /*isFrozen*/, null /*isReadOnly*/); |
|||
} |
|||
} |
|||
|
|||
internal DataGridColumn FirstVisibleNonFillerColumn |
|||
{ |
|||
get |
|||
{ |
|||
DataGridColumn dataGridColumn = FirstVisibleColumn; |
|||
if (dataGridColumn == RowGroupSpacerColumn) |
|||
{ |
|||
dataGridColumn = GetNextVisibleColumn(dataGridColumn); |
|||
} |
|||
return dataGridColumn; |
|||
} |
|||
} |
|||
|
|||
internal DataGridColumn FirstVisibleWritableColumn |
|||
{ |
|||
get |
|||
{ |
|||
return GetFirstColumn(true /*isVisible*/, null /*isFrozen*/, false /*isReadOnly*/); |
|||
} |
|||
} |
|||
|
|||
internal DataGridColumn FirstVisibleScrollingColumn |
|||
{ |
|||
get |
|||
{ |
|||
return GetFirstColumn(true /*isVisible*/, false /*isFrozen*/, null /*isReadOnly*/); |
|||
} |
|||
} |
|||
|
|||
internal List<DataGridColumn> ItemsInternal |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
internal DataGridColumn LastVisibleColumn |
|||
{ |
|||
get |
|||
{ |
|||
return GetLastColumn(true /*isVisible*/, null /*isFrozen*/, null /*isReadOnly*/); |
|||
} |
|||
} |
|||
|
|||
internal DataGridColumn LastVisibleScrollingColumn |
|||
{ |
|||
get |
|||
{ |
|||
return GetLastColumn(true /*isVisible*/, false /*isFrozen*/, null /*isReadOnly*/); |
|||
} |
|||
} |
|||
|
|||
internal DataGridColumn LastVisibleWritableColumn |
|||
{ |
|||
get |
|||
{ |
|||
return GetLastColumn(true /*isVisible*/, null /*isFrozen*/, false /*isReadOnly*/); |
|||
} |
|||
} |
|||
|
|||
internal DataGridFillerColumn RowGroupSpacerColumn |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
internal int VisibleColumnCount |
|||
{ |
|||
get |
|||
{ |
|||
int visibleColumnCount = 0; |
|||
for (int columnIndex = 0; columnIndex < ItemsInternal.Count; columnIndex++) |
|||
{ |
|||
if (ItemsInternal[columnIndex].IsVisible) |
|||
{ |
|||
visibleColumnCount++; |
|||
} |
|||
} |
|||
return visibleColumnCount; |
|||
} |
|||
} |
|||
|
|||
internal double VisibleEdgedColumnsWidth |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The number of star columns that are currently visible.
|
|||
/// NOTE: Requires that EnsureVisibleEdgedColumnsWidth has been called.
|
|||
/// </summary>
|
|||
internal int VisibleStarColumnCount |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
protected override void ClearItems() |
|||
{ |
|||
try |
|||
{ |
|||
_owningGrid.NoCurrentCellChangeCount++; |
|||
if (ItemsInternal.Count > 0) |
|||
{ |
|||
if (_owningGrid.InDisplayIndexAdjustments) |
|||
{ |
|||
// We are within columns display indexes adjustments. We do not allow changing the column collection while adjusting display indexes.
|
|||
throw DataGridError.DataGrid.CannotChangeColumnCollectionWhileAdjustingDisplayIndexes(); |
|||
} |
|||
|
|||
_owningGrid.OnClearingColumns(); |
|||
for (int columnIndex = 0; columnIndex < ItemsInternal.Count; columnIndex++) |
|||
{ |
|||
// Detach the column...
|
|||
ItemsInternal[columnIndex].OwningGrid = null; |
|||
} |
|||
ItemsInternal.Clear(); |
|||
DisplayIndexMap.Clear(); |
|||
AutogeneratedColumnCount = 0; |
|||
_owningGrid.OnColumnCollectionChanged_PreNotification(false /*columnsGrew*/); |
|||
base.ClearItems(); |
|||
VisibleEdgedColumnsWidth = 0; |
|||
_owningGrid.OnColumnCollectionChanged_PostNotification(false /*columnsGrew*/); |
|||
} |
|||
} |
|||
finally |
|||
{ |
|||
_owningGrid.NoCurrentCellChangeCount--; |
|||
} |
|||
} |
|||
|
|||
protected override void InsertItem(int columnIndex, DataGridColumn dataGridColumn) |
|||
{ |
|||
try |
|||
{ |
|||
_owningGrid.NoCurrentCellChangeCount++; |
|||
if (_owningGrid.InDisplayIndexAdjustments) |
|||
{ |
|||
// We are within columns display indexes adjustments. We do not allow changing the column collection while adjusting display indexes.
|
|||
throw DataGridError.DataGrid.CannotChangeColumnCollectionWhileAdjustingDisplayIndexes(); |
|||
} |
|||
if (dataGridColumn == null) |
|||
{ |
|||
throw new ArgumentNullException("dataGridColumn"); |
|||
} |
|||
|
|||
int columnIndexWithFiller = columnIndex; |
|||
if (dataGridColumn != RowGroupSpacerColumn && RowGroupSpacerColumn.IsRepresented) |
|||
{ |
|||
columnIndexWithFiller++; |
|||
} |
|||
|
|||
// get the new current cell coordinates
|
|||
DataGridCellCoordinates newCurrentCellCoordinates = _owningGrid.OnInsertingColumn(columnIndex, dataGridColumn); |
|||
|
|||
// insert the column into our internal list
|
|||
ItemsInternal.Insert(columnIndexWithFiller, dataGridColumn); |
|||
dataGridColumn.Index = columnIndexWithFiller; |
|||
dataGridColumn.OwningGrid = _owningGrid; |
|||
dataGridColumn.RemoveEditingElement(); |
|||
if (dataGridColumn.IsVisible) |
|||
{ |
|||
VisibleEdgedColumnsWidth += dataGridColumn.ActualWidth; |
|||
} |
|||
|
|||
// continue with the base insert
|
|||
_owningGrid.OnInsertedColumn_PreNotification(dataGridColumn); |
|||
_owningGrid.OnColumnCollectionChanged_PreNotification(true /*columnsGrew*/); |
|||
|
|||
if (dataGridColumn != RowGroupSpacerColumn) |
|||
{ |
|||
base.InsertItem(columnIndex, dataGridColumn); |
|||
} |
|||
_owningGrid.OnInsertedColumn_PostNotification(newCurrentCellCoordinates, dataGridColumn.DisplayIndex); |
|||
_owningGrid.OnColumnCollectionChanged_PostNotification(true /*columnsGrew*/); |
|||
} |
|||
finally |
|||
{ |
|||
_owningGrid.NoCurrentCellChangeCount--; |
|||
} |
|||
} |
|||
|
|||
protected override void RemoveItem(int columnIndex) |
|||
{ |
|||
RemoveItemPrivate(columnIndex, false /*isSpacer*/); |
|||
} |
|||
|
|||
protected override void SetItem(int columnIndex, DataGridColumn dataGridColumn) |
|||
{ |
|||
throw new NotSupportedException(); |
|||
} |
|||
|
|||
internal bool DisplayInOrder(int columnIndex1, int columnIndex2) |
|||
{ |
|||
int displayIndex1 = ItemsInternal[columnIndex1].DisplayIndexWithFiller; |
|||
int displayIndex2 = ItemsInternal[columnIndex2].DisplayIndexWithFiller; |
|||
return displayIndex1 < displayIndex2; |
|||
} |
|||
|
|||
internal bool EnsureRowGrouping(bool rowGrouping) |
|||
{ |
|||
// The insert below could cause the first column to be added. That causes a refresh
|
|||
// which re-enters method so instead of checking RowGroupSpacerColumn.IsRepresented,
|
|||
// we need to check to see if it's actually in our collection instead.
|
|||
bool spacerRepresented = (ItemsInternal.Count > 0) && (ItemsInternal[0] == RowGroupSpacerColumn); |
|||
if (rowGrouping && !spacerRepresented) |
|||
{ |
|||
Insert(0, RowGroupSpacerColumn); |
|||
RowGroupSpacerColumn.IsRepresented = true; |
|||
return true; |
|||
} |
|||
else if (!rowGrouping && spacerRepresented) |
|||
{ |
|||
// We need to set IsRepresented to false before removing the RowGroupSpacerColumn
|
|||
// otherwise, we'll remove the column after it
|
|||
RowGroupSpacerColumn.IsRepresented = false; |
|||
RemoveItemPrivate(0, true /*isSpacer*/); |
|||
return true; |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// In addition to ensuring that column widths are valid, method updates the values of
|
|||
/// VisibleEdgedColumnsWidth and VisibleStarColumnCount.
|
|||
/// </summary>
|
|||
internal void EnsureVisibleEdgedColumnsWidth() |
|||
{ |
|||
VisibleStarColumnCount = 0; |
|||
VisibleEdgedColumnsWidth = 0; |
|||
for (int columnIndex = 0; columnIndex < ItemsInternal.Count; columnIndex++) |
|||
{ |
|||
if (ItemsInternal[columnIndex].IsVisible) |
|||
{ |
|||
ItemsInternal[columnIndex].EnsureWidth(); |
|||
if (ItemsInternal[columnIndex].Width.IsStar) |
|||
{ |
|||
VisibleStarColumnCount++; |
|||
} |
|||
VisibleEdgedColumnsWidth += ItemsInternal[columnIndex].ActualWidth; |
|||
} |
|||
} |
|||
} |
|||
|
|||
internal DataGridColumn GetColumnAtDisplayIndex(int displayIndex) |
|||
{ |
|||
if (displayIndex < 0 || displayIndex >= ItemsInternal.Count || displayIndex >= DisplayIndexMap.Count) |
|||
{ |
|||
return null; |
|||
} |
|||
int columnIndex = DisplayIndexMap[displayIndex]; |
|||
return ItemsInternal[columnIndex]; |
|||
} |
|||
|
|||
internal int GetColumnCount(bool isVisible, bool isFrozen, int fromColumnIndex, int toColumnIndex) |
|||
{ |
|||
int columnCount = 0; |
|||
DataGridColumn dataGridColumn = ItemsInternal[fromColumnIndex]; |
|||
|
|||
while (dataGridColumn != ItemsInternal[toColumnIndex]) |
|||
{ |
|||
dataGridColumn = GetNextColumn(dataGridColumn, isVisible, isFrozen, null /*isReadOnly*/); |
|||
columnCount++; |
|||
} |
|||
return columnCount; |
|||
} |
|||
|
|||
internal IEnumerable<DataGridColumn> GetDisplayedColumns() |
|||
{ |
|||
foreach (int columnIndex in DisplayIndexMap) |
|||
{ |
|||
yield return ItemsInternal[columnIndex]; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns an enumeration of all columns that meet the criteria of the filter predicate.
|
|||
/// </summary>
|
|||
/// <param name="filter">Criteria for inclusion.</param>
|
|||
/// <returns>Columns that meet the criteria, in ascending DisplayIndex order.</returns>
|
|||
internal IEnumerable<DataGridColumn> GetDisplayedColumns(Predicate<DataGridColumn> filter) |
|||
{ |
|||
Debug.Assert(filter != null); |
|||
Debug.Assert(ItemsInternal.Count == DisplayIndexMap.Count); |
|||
foreach (int columnIndex in DisplayIndexMap) |
|||
{ |
|||
DataGridColumn column = ItemsInternal[columnIndex]; |
|||
if (filter(column)) |
|||
{ |
|||
yield return column; |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns an enumeration of all columns that meet the criteria of the filter predicate.
|
|||
/// The columns are returned in the order specified by the reverse flag.
|
|||
/// </summary>
|
|||
/// <param name="reverse">Whether or not to return the columns in descending DisplayIndex order.</param>
|
|||
/// <param name="filter">Criteria for inclusion.</param>
|
|||
/// <returns>Columns that meet the criteria, in the order specified by the reverse flag.</returns>
|
|||
internal IEnumerable<DataGridColumn> GetDisplayedColumns(bool reverse, Predicate<DataGridColumn> filter) |
|||
{ |
|||
return reverse ? GetDisplayedColumnsReverse(filter) : GetDisplayedColumns(filter); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns an enumeration of all columns that meet the criteria of the filter predicate.
|
|||
/// The columns are returned in descending DisplayIndex order.
|
|||
/// </summary>
|
|||
/// <param name="filter">Criteria for inclusion.</param>
|
|||
/// <returns>Columns that meet the criteria, in descending DisplayIndex order.</returns>
|
|||
internal IEnumerable<DataGridColumn> GetDisplayedColumnsReverse(Predicate<DataGridColumn> filter) |
|||
{ |
|||
for (int displayIndex = DisplayIndexMap.Count - 1; displayIndex >= 0; displayIndex--) |
|||
{ |
|||
DataGridColumn column = ItemsInternal[DisplayIndexMap[displayIndex]]; |
|||
if (filter(column)) |
|||
{ |
|||
yield return column; |
|||
} |
|||
} |
|||
} |
|||
|
|||
internal DataGridColumn GetFirstColumn(bool? isVisible, bool? isFrozen, bool? isReadOnly) |
|||
{ |
|||
Debug.Assert(ItemsInternal.Count == DisplayIndexMap.Count); |
|||
int index = 0; |
|||
while (index < DisplayIndexMap.Count) |
|||
{ |
|||
DataGridColumn dataGridColumn = GetColumnAtDisplayIndex(index); |
|||
if ((isVisible == null || (dataGridColumn.IsVisible) == isVisible) && |
|||
(isFrozen == null || dataGridColumn.IsFrozen == isFrozen) && |
|||
(isReadOnly == null || dataGridColumn.IsReadOnly == isReadOnly)) |
|||
{ |
|||
return dataGridColumn; |
|||
} |
|||
index++; |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
internal DataGridColumn GetLastColumn(bool? isVisible, bool? isFrozen, bool? isReadOnly) |
|||
{ |
|||
Debug.Assert(ItemsInternal.Count == DisplayIndexMap.Count); |
|||
int index = DisplayIndexMap.Count - 1; |
|||
while (index >= 0) |
|||
{ |
|||
DataGridColumn dataGridColumn = GetColumnAtDisplayIndex(index); |
|||
if ((isVisible == null || (dataGridColumn.IsVisible) == isVisible) && |
|||
(isFrozen == null || dataGridColumn.IsFrozen == isFrozen) && |
|||
(isReadOnly == null || dataGridColumn.IsReadOnly == isReadOnly)) |
|||
{ |
|||
return dataGridColumn; |
|||
} |
|||
index--; |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
internal DataGridColumn GetNextColumn(DataGridColumn dataGridColumnStart) |
|||
{ |
|||
return GetNextColumn(dataGridColumnStart, null /*isVisible*/, null /*isFrozen*/, null /*isReadOnly*/); |
|||
} |
|||
|
|||
internal DataGridColumn GetNextColumn(DataGridColumn dataGridColumnStart, |
|||
bool? isVisible, bool? isFrozen, bool? isReadOnly) |
|||
{ |
|||
Debug.Assert(dataGridColumnStart != null); |
|||
Debug.Assert(ItemsInternal.Contains(dataGridColumnStart)); |
|||
Debug.Assert(ItemsInternal.Count == DisplayIndexMap.Count); |
|||
|
|||
int index = dataGridColumnStart.DisplayIndexWithFiller + 1; |
|||
while (index < DisplayIndexMap.Count) |
|||
{ |
|||
DataGridColumn dataGridColumn = GetColumnAtDisplayIndex(index); |
|||
|
|||
if ((isVisible == null || (dataGridColumn.IsVisible) == isVisible) && |
|||
(isFrozen == null || dataGridColumn.IsFrozen == isFrozen) && |
|||
(isReadOnly == null || dataGridColumn.IsReadOnly == isReadOnly)) |
|||
{ |
|||
return dataGridColumn; |
|||
} |
|||
index++; |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
internal DataGridColumn GetNextVisibleColumn(DataGridColumn dataGridColumnStart) |
|||
{ |
|||
return GetNextColumn(dataGridColumnStart, true /*isVisible*/, null /*isFrozen*/, null /*isReadOnly*/); |
|||
} |
|||
|
|||
internal DataGridColumn GetNextVisibleFrozenColumn(DataGridColumn dataGridColumnStart) |
|||
{ |
|||
return GetNextColumn(dataGridColumnStart, true /*isVisible*/, true /*isFrozen*/, null /*isReadOnly*/); |
|||
} |
|||
|
|||
internal DataGridColumn GetNextVisibleWritableColumn(DataGridColumn dataGridColumnStart) |
|||
{ |
|||
return GetNextColumn(dataGridColumnStart, true /*isVisible*/, null /*isFrozen*/, false /*isReadOnly*/); |
|||
} |
|||
|
|||
internal DataGridColumn GetPreviousColumn(DataGridColumn dataGridColumnStart, |
|||
bool? isVisible, bool? isFrozen, bool? isReadOnly) |
|||
{ |
|||
int index = dataGridColumnStart.DisplayIndexWithFiller - 1; |
|||
while (index >= 0) |
|||
{ |
|||
DataGridColumn dataGridColumn = GetColumnAtDisplayIndex(index); |
|||
if ((isVisible == null || (dataGridColumn.IsVisible) == isVisible) && |
|||
(isFrozen == null || dataGridColumn.IsFrozen == isFrozen) && |
|||
(isReadOnly == null || dataGridColumn.IsReadOnly == isReadOnly)) |
|||
{ |
|||
return dataGridColumn; |
|||
} |
|||
index--; |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
internal DataGridColumn GetPreviousVisibleNonFillerColumn(DataGridColumn dataGridColumnStart) |
|||
{ |
|||
DataGridColumn column = GetPreviousColumn(dataGridColumnStart, true /*isVisible*/, null /*isFrozen*/, null /*isReadOnly*/); |
|||
return (column is DataGridFillerColumn) ? null : column; |
|||
} |
|||
|
|||
internal DataGridColumn GetPreviousVisibleScrollingColumn(DataGridColumn dataGridColumnStart) |
|||
{ |
|||
return GetPreviousColumn(dataGridColumnStart, true /*isVisible*/, false /*isFrozen*/, null /*isReadOnly*/); |
|||
} |
|||
|
|||
internal DataGridColumn GetPreviousVisibleWritableColumn(DataGridColumn dataGridColumnStart) |
|||
{ |
|||
return GetPreviousColumn(dataGridColumnStart, true /*isVisible*/, null /*isFrozen*/, false /*isReadOnly*/); |
|||
} |
|||
|
|||
internal int GetVisibleColumnCount(int fromColumnIndex, int toColumnIndex) |
|||
{ |
|||
int columnCount = 0; |
|||
DataGridColumn dataGridColumn = ItemsInternal[fromColumnIndex]; |
|||
|
|||
while (dataGridColumn != ItemsInternal[toColumnIndex]) |
|||
{ |
|||
dataGridColumn = GetNextVisibleColumn(dataGridColumn); |
|||
columnCount++; |
|||
} |
|||
return columnCount; |
|||
} |
|||
|
|||
internal IEnumerable<DataGridColumn> GetVisibleColumns() |
|||
{ |
|||
Predicate<DataGridColumn> filter = column => column.IsVisible; |
|||
return GetDisplayedColumns(filter); |
|||
} |
|||
|
|||
internal IEnumerable<DataGridColumn> GetVisibleFrozenColumns() |
|||
{ |
|||
Predicate<DataGridColumn> filter = column => column.IsVisible && column.IsFrozen; |
|||
return GetDisplayedColumns(filter); |
|||
} |
|||
|
|||
internal double GetVisibleFrozenEdgedColumnsWidth() |
|||
{ |
|||
double visibleFrozenColumnsWidth = 0; |
|||
for (int columnIndex = 0; columnIndex < ItemsInternal.Count; columnIndex++) |
|||
{ |
|||
if (ItemsInternal[columnIndex].IsVisible && ItemsInternal[columnIndex].IsFrozen) |
|||
{ |
|||
visibleFrozenColumnsWidth += ItemsInternal[columnIndex].ActualWidth; |
|||
} |
|||
} |
|||
return visibleFrozenColumnsWidth; |
|||
} |
|||
|
|||
internal IEnumerable<DataGridColumn> GetVisibleScrollingColumns() |
|||
{ |
|||
Predicate<DataGridColumn> filter = column => column.IsVisible && !column.IsFrozen; |
|||
return GetDisplayedColumns(filter); |
|||
} |
|||
|
|||
private void RemoveItemPrivate(int columnIndex, bool isSpacer) |
|||
{ |
|||
try |
|||
{ |
|||
_owningGrid.NoCurrentCellChangeCount++; |
|||
|
|||
if (_owningGrid.InDisplayIndexAdjustments) |
|||
{ |
|||
// We are within columns display indexes adjustments. We do not allow changing the column collection while adjusting display indexes.
|
|||
throw DataGridError.DataGrid.CannotChangeColumnCollectionWhileAdjustingDisplayIndexes(); |
|||
} |
|||
|
|||
int columnIndexWithFiller = columnIndex; |
|||
if (!isSpacer && RowGroupSpacerColumn.IsRepresented) |
|||
{ |
|||
columnIndexWithFiller++; |
|||
} |
|||
|
|||
DataGridColumn dataGridColumn = ItemsInternal[columnIndexWithFiller]; |
|||
DataGridCellCoordinates newCurrentCellCoordinates = _owningGrid.OnRemovingColumn(dataGridColumn); |
|||
ItemsInternal.RemoveAt(columnIndexWithFiller); |
|||
if (dataGridColumn.IsVisible) |
|||
{ |
|||
VisibleEdgedColumnsWidth -= dataGridColumn.ActualWidth; |
|||
} |
|||
dataGridColumn.OwningGrid = null; |
|||
dataGridColumn.RemoveEditingElement(); |
|||
|
|||
// continue with the base remove
|
|||
_owningGrid.OnRemovedColumn_PreNotification(dataGridColumn); |
|||
_owningGrid.OnColumnCollectionChanged_PreNotification(false /*columnsGrew*/); |
|||
if (!isSpacer) |
|||
{ |
|||
base.RemoveItem(columnIndex); |
|||
} |
|||
_owningGrid.OnRemovedColumn_PostNotification(newCurrentCellCoordinates); |
|||
_owningGrid.OnColumnCollectionChanged_PostNotification(false /*columnsGrew*/); |
|||
} |
|||
finally |
|||
{ |
|||
_owningGrid.NoCurrentCellChangeCount--; |
|||
} |
|||
} |
|||
|
|||
} |
|||
} |
|||
@ -0,0 +1,806 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Controls.Primitives; |
|||
using Avalonia.Data; |
|||
using Avalonia.Input; |
|||
using Avalonia.Collections; |
|||
using Avalonia.Media; |
|||
using System.ComponentModel; |
|||
using System.Diagnostics; |
|||
using Avalonia.Utilities; |
|||
using System; |
|||
using Avalonia.Controls.Utils; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// Represents an individual <see cref="T:Avalonia.Controls.DataGrid" /> column header.
|
|||
/// </summary>
|
|||
public class DataGridColumnHeader : ContentControl |
|||
{ |
|||
private enum DragMode |
|||
{ |
|||
None = 0, |
|||
MouseDown = 1, |
|||
Drag = 2, |
|||
Resize = 3, |
|||
Reorder = 4 |
|||
} |
|||
|
|||
private const int DATAGRIDCOLUMNHEADER_resizeRegionWidth = 5; |
|||
private const double DATAGRIDCOLUMNHEADER_separatorThickness = 1; |
|||
|
|||
private bool _areHandlersSuspended; |
|||
private static DragMode _dragMode; |
|||
private static Point? _lastMousePositionHeaders; |
|||
private static Cursor _originalCursor; |
|||
private static double _originalHorizontalOffset; |
|||
private static double _originalWidth; |
|||
private bool _desiredSeparatorVisibility; |
|||
private static Point? _dragStart; |
|||
private static DataGridColumn _dragColumn; |
|||
private static double _frozenColumnsWidth; |
|||
private static Lazy<Cursor> _resizeCursor = new Lazy<Cursor>(() => new Cursor(StandardCursorType.SizeWestEast)); |
|||
|
|||
public static readonly StyledProperty<IBrush> SeparatorBrushProperty = |
|||
AvaloniaProperty.Register<DataGridColumnHeader, IBrush>(nameof(SeparatorBrush)); |
|||
|
|||
public IBrush SeparatorBrush |
|||
{ |
|||
get { return GetValue(SeparatorBrushProperty); } |
|||
set { SetValue(SeparatorBrushProperty, value); } |
|||
} |
|||
|
|||
public static readonly StyledProperty<bool> AreSeparatorsVisibleProperty = |
|||
AvaloniaProperty.Register<DataGridColumnHeader, bool>( |
|||
nameof(AreSeparatorsVisible), |
|||
defaultValue: true); |
|||
|
|||
public bool AreSeparatorsVisible |
|||
{ |
|||
get { return GetValue(AreSeparatorsVisibleProperty); } |
|||
set { SetValue(AreSeparatorsVisibleProperty, value); } |
|||
} |
|||
|
|||
static DataGridColumnHeader() |
|||
{ |
|||
AreSeparatorsVisibleProperty.Changed.AddClassHandler<DataGridColumnHeader>(x => x.OnAreSeparatorsVisibleChanged); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.Primitives.DataGridColumnHeader" /> class.
|
|||
/// </summary>
|
|||
//TODO Implement
|
|||
public DataGridColumnHeader() |
|||
{ |
|||
PointerPressed += DataGridColumnHeader_PointerPressed; |
|||
PointerReleased += DataGridColumnHeader_PointerReleased; |
|||
PointerMoved += DataGridColumnHeader_PointerMove; |
|||
PointerEnter += DataGridColumnHeader_PointerEnter; |
|||
PointerLeave += DataGridColumnHeader_PointerLeave; |
|||
} |
|||
|
|||
private void OnAreSeparatorsVisibleChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (!_areHandlersSuspended) |
|||
{ |
|||
_desiredSeparatorVisibility = (bool)e.NewValue; |
|||
if (OwningGrid != null) |
|||
{ |
|||
UpdateSeparatorVisibility(OwningGrid.ColumnsInternal.LastVisibleColumn); |
|||
} |
|||
else |
|||
{ |
|||
UpdateSeparatorVisibility(null); |
|||
} |
|||
} |
|||
} |
|||
|
|||
internal DataGridColumn OwningColumn |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
internal DataGrid OwningGrid => OwningColumn?.OwningGrid; |
|||
|
|||
internal int ColumnIndex |
|||
{ |
|||
get |
|||
{ |
|||
if (OwningColumn == null) |
|||
{ |
|||
return -1; |
|||
} |
|||
return OwningColumn.Index; |
|||
} |
|||
} |
|||
|
|||
internal ListSortDirection? CurrentSortingState |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
private bool IsMouseOver |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
private bool IsPressed |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
private void SetValueNoCallback<T>(AvaloniaProperty<T> property, T value, BindingPriority priority = BindingPriority.LocalValue) |
|||
{ |
|||
_areHandlersSuspended = true; |
|||
try |
|||
{ |
|||
SetValue(property, value, priority); |
|||
} |
|||
finally |
|||
{ |
|||
_areHandlersSuspended = false; |
|||
} |
|||
} |
|||
|
|||
//TODO Implement
|
|||
internal void ApplyState() |
|||
{ |
|||
CurrentSortingState = null; |
|||
if (OwningGrid != null |
|||
&& OwningGrid.DataConnection != null |
|||
&& OwningGrid.DataConnection.AllowSort) |
|||
{ |
|||
var sort = OwningColumn.GetSortDescription(); |
|||
if(sort != null) |
|||
{ |
|||
CurrentSortingState = sort.Descending ? ListSortDirection.Descending : ListSortDirection.Ascending; |
|||
} |
|||
} |
|||
PseudoClasses.Set(":sortascending", |
|||
CurrentSortingState.HasValue && CurrentSortingState.Value == ListSortDirection.Ascending); |
|||
PseudoClasses.Set(":sortdescending", |
|||
CurrentSortingState.HasValue && CurrentSortingState.Value == ListSortDirection.Descending); |
|||
} |
|||
|
|||
internal void UpdateSeparatorVisibility(DataGridColumn lastVisibleColumn) |
|||
{ |
|||
bool newVisibility = _desiredSeparatorVisibility; |
|||
|
|||
// Collapse separator for the last column if there is no filler column
|
|||
if (OwningColumn != null && |
|||
OwningGrid != null && |
|||
_desiredSeparatorVisibility && |
|||
OwningColumn == lastVisibleColumn && |
|||
!OwningGrid.ColumnsInternal.FillerColumn.IsActive) |
|||
{ |
|||
newVisibility = false; |
|||
} |
|||
|
|||
// Update the public property if it has changed
|
|||
if (AreSeparatorsVisible != newVisibility) |
|||
{ |
|||
SetValueNoCallback(AreSeparatorsVisibleProperty, newVisibility); |
|||
} |
|||
} |
|||
|
|||
internal void OnMouseLeftButtonUp_Click(InputModifiers inputModifiers, ref bool handled) |
|||
{ |
|||
// completed a click without dragging, so we're sorting
|
|||
InvokeProcessSort(inputModifiers); |
|||
handled = true; |
|||
} |
|||
|
|||
internal void InvokeProcessSort(InputModifiers inputModifiers) |
|||
{ |
|||
Debug.Assert(OwningGrid != null); |
|||
if (OwningGrid.WaitForLostFocus(() => InvokeProcessSort(inputModifiers))) |
|||
{ |
|||
return; |
|||
} |
|||
if (OwningGrid.CommitEdit(DataGridEditingUnit.Row, exitEditingMode: true)) |
|||
{ |
|||
Avalonia.Threading.Dispatcher.UIThread.Post(() => ProcessSort(inputModifiers)); |
|||
} |
|||
} |
|||
|
|||
//TODO GroupSorting
|
|||
internal void ProcessSort(InputModifiers inputModifiers) |
|||
{ |
|||
// if we can sort:
|
|||
// - DataConnection.AllowSort is true, and
|
|||
// - AllowUserToSortColumns and CanSort are true, and
|
|||
// - OwningColumn is bound, and
|
|||
// - SortDescriptionsCollection exists, and
|
|||
// - the column's data type is comparable
|
|||
// then try to sort
|
|||
if (OwningColumn != null |
|||
&& OwningGrid != null |
|||
&& OwningGrid.EditingRow == null |
|||
&& OwningColumn != OwningGrid.ColumnsInternal.FillerColumn |
|||
&& OwningGrid.DataConnection.AllowSort |
|||
&& OwningGrid.CanUserSortColumns |
|||
&& OwningColumn.CanUserSort |
|||
&& OwningGrid.DataConnection.SortDescriptions != null) |
|||
{ |
|||
DataGrid owningGrid = OwningGrid; |
|||
|
|||
DataGridSortDescription newSort; |
|||
|
|||
KeyboardHelper.GetMetaKeyState(inputModifiers, out bool ctrl, out bool shift); |
|||
|
|||
DataGridSortDescription sort = OwningColumn.GetSortDescription(); |
|||
IDataGridCollectionView collectionView = owningGrid.DataConnection.CollectionView; |
|||
Debug.Assert(collectionView != null); |
|||
using (collectionView.DeferRefresh()) |
|||
{ |
|||
// if shift is held down, we multi-sort, therefore if it isn't, we'll clear the sorts beforehand
|
|||
if (!shift || owningGrid.DataConnection.SortDescriptions.Count == 0) |
|||
{ |
|||
owningGrid.DataConnection.SortDescriptions.Clear(); |
|||
} |
|||
|
|||
if (sort != null) |
|||
{ |
|||
newSort = sort.SwitchSortDirection(); |
|||
|
|||
// changing direction should not affect sort order, so we replace this column's
|
|||
// sort description instead of just adding it to the end of the collection
|
|||
int oldIndex = owningGrid.DataConnection.SortDescriptions.IndexOf(sort); |
|||
if (oldIndex >= 0) |
|||
{ |
|||
owningGrid.DataConnection.SortDescriptions.Remove(sort); |
|||
owningGrid.DataConnection.SortDescriptions.Insert(oldIndex, newSort); |
|||
} |
|||
else |
|||
{ |
|||
owningGrid.DataConnection.SortDescriptions.Add(newSort); |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
string propertyName = OwningColumn.GetSortPropertyName(); |
|||
// no-opt if we couldn't find a property to sort on
|
|||
if (string.IsNullOrEmpty(propertyName)) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
newSort = DataGridSortDescription.FromPath(propertyName, culture: collectionView.Culture); |
|||
owningGrid.DataConnection.SortDescriptions.Add(newSort); |
|||
} |
|||
} |
|||
} |
|||
} |
|||
|
|||
private bool CanReorderColumn(DataGridColumn column) |
|||
{ |
|||
return OwningGrid.CanUserReorderColumns |
|||
&& !(column is DataGridFillerColumn) |
|||
&& (column.CanUserReorderInternal.HasValue && column.CanUserReorderInternal.Value || !column.CanUserReorderInternal.HasValue); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Determines whether a column can be resized by dragging the border of its header. If star sizing
|
|||
/// is being used, there are special conditions that can prevent a column from being resized:
|
|||
/// 1. The column is the last visible column.
|
|||
/// 2. All columns are constrained by either their maximum or minimum values.
|
|||
/// </summary>
|
|||
/// <param name="column">Column to check.</param>
|
|||
/// <returns>Whether or not the column can be resized by dragging its header.</returns>
|
|||
private static bool CanResizeColumn(DataGridColumn column) |
|||
{ |
|||
if (column.OwningGrid != null && column.OwningGrid.ColumnsInternal != null && column.OwningGrid.UsesStarSizing && |
|||
(column.OwningGrid.ColumnsInternal.LastVisibleColumn == column || !DoubleUtil.AreClose(column.OwningGrid.ColumnsInternal.VisibleEdgedColumnsWidth, column.OwningGrid.CellsWidth))) |
|||
{ |
|||
return false; |
|||
} |
|||
return column.ActualCanUserResize; |
|||
} |
|||
|
|||
private static bool TrySetResizeColumn(DataGridColumn column) |
|||
{ |
|||
// If datagrid.CanUserResizeColumns == false, then the column can still override it
|
|||
if (CanResizeColumn(column)) |
|||
{ |
|||
_dragColumn = column; |
|||
|
|||
_dragMode = DragMode.Resize; |
|||
|
|||
return true; |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
//TODO DragDrop
|
|||
|
|||
internal void OnMouseLeftButtonDown(ref bool handled, PointerEventArgs args, Point mousePosition) |
|||
{ |
|||
IsPressed = true; |
|||
|
|||
if (OwningGrid != null && OwningGrid.ColumnHeaders != null) |
|||
{ |
|||
args.Device.Capture(this); |
|||
|
|||
_dragMode = DragMode.MouseDown; |
|||
_frozenColumnsWidth = OwningGrid.ColumnsInternal.GetVisibleFrozenEdgedColumnsWidth(); |
|||
_lastMousePositionHeaders = this.Translate(OwningGrid.ColumnHeaders, mousePosition); |
|||
|
|||
double distanceFromLeft = mousePosition.X; |
|||
double distanceFromRight = Bounds.Width - distanceFromLeft; |
|||
DataGridColumn currentColumn = OwningColumn; |
|||
DataGridColumn previousColumn = null; |
|||
if (!(OwningColumn is DataGridFillerColumn)) |
|||
{ |
|||
previousColumn = OwningGrid.ColumnsInternal.GetPreviousVisibleNonFillerColumn(currentColumn); |
|||
} |
|||
|
|||
if (_dragMode == DragMode.MouseDown && _dragColumn == null && (distanceFromRight <= DATAGRIDCOLUMNHEADER_resizeRegionWidth)) |
|||
{ |
|||
handled = TrySetResizeColumn(currentColumn); |
|||
} |
|||
else if (_dragMode == DragMode.MouseDown && _dragColumn == null && distanceFromLeft <= DATAGRIDCOLUMNHEADER_resizeRegionWidth && previousColumn != null) |
|||
{ |
|||
handled = TrySetResizeColumn(previousColumn); |
|||
} |
|||
|
|||
if (_dragMode == DragMode.Resize && _dragColumn != null) |
|||
{ |
|||
_dragStart = _lastMousePositionHeaders; |
|||
_originalWidth = _dragColumn.ActualWidth; |
|||
_originalHorizontalOffset = OwningGrid.HorizontalOffset; |
|||
|
|||
handled = true; |
|||
} |
|||
} |
|||
} |
|||
|
|||
//TODO DragEvents
|
|||
//TODO MouseCapture
|
|||
internal void OnMouseLeftButtonUp(ref bool handled, PointerEventArgs args, Point mousePosition, Point mousePositionHeaders) |
|||
{ |
|||
IsPressed = false; |
|||
|
|||
if (OwningGrid != null && OwningGrid.ColumnHeaders != null) |
|||
{ |
|||
if (_dragMode == DragMode.MouseDown) |
|||
{ |
|||
OnMouseLeftButtonUp_Click(args.InputModifiers, ref handled); |
|||
} |
|||
else if (_dragMode == DragMode.Reorder) |
|||
{ |
|||
// Find header we're hovering over
|
|||
int targetIndex = GetReorderingTargetDisplayIndex(mousePositionHeaders); |
|||
|
|||
if (((!OwningColumn.IsFrozen && targetIndex >= OwningGrid.FrozenColumnCount) |
|||
|| (OwningColumn.IsFrozen && targetIndex < OwningGrid.FrozenColumnCount))) |
|||
{ |
|||
OwningColumn.DisplayIndex = targetIndex; |
|||
|
|||
DataGridColumnEventArgs ea = new DataGridColumnEventArgs(OwningColumn); |
|||
OwningGrid.OnColumnReordered(ea); |
|||
} |
|||
} |
|||
|
|||
SetDragCursor(mousePosition); |
|||
|
|||
// Variables that track drag mode states get reset in DataGridColumnHeader_LostMouseCapture
|
|||
args.Device.Capture(null); |
|||
OnLostMouseCapture(); |
|||
_dragMode = DragMode.None; |
|||
handled = true; |
|||
} |
|||
} |
|||
|
|||
//TODO DragEvents
|
|||
internal void OnMouseMove(ref bool handled, Point mousePosition, Point mousePositionHeaders) |
|||
{ |
|||
if (handled || OwningGrid == null || OwningGrid.ColumnHeaders == null) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
Debug.Assert(OwningGrid.Parent is InputElement); |
|||
|
|||
double distanceFromLeft = mousePosition.X; |
|||
double distanceFromRight = Bounds.Width - distanceFromLeft; |
|||
|
|||
OnMouseMove_Resize(ref handled, mousePositionHeaders); |
|||
|
|||
OnMouseMove_Reorder(ref handled, mousePosition, mousePositionHeaders, distanceFromLeft, distanceFromRight); |
|||
|
|||
// if we still haven't done anything about moving the mouse while
|
|||
// the button is down, we remember that we're dragging, but we don't
|
|||
// claim to have actually handled the event
|
|||
if (_dragMode == DragMode.MouseDown) |
|||
{ |
|||
_dragMode = DragMode.Drag; |
|||
} |
|||
|
|||
_lastMousePositionHeaders = mousePositionHeaders; |
|||
|
|||
SetDragCursor(mousePosition); |
|||
} |
|||
|
|||
private void DataGridColumnHeader_PointerEnter(object sender, PointerEventArgs e) |
|||
{ |
|||
if (!IsEnabled) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
Point mousePosition = e.GetPosition(this); |
|||
OnMouseEnter(mousePosition); |
|||
ApplyState(); |
|||
} |
|||
|
|||
private void DataGridColumnHeader_PointerLeave(object sender, PointerEventArgs e) |
|||
{ |
|||
if (!IsEnabled) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
OnMouseLeave(); |
|||
ApplyState(); |
|||
} |
|||
|
|||
private void DataGridColumnHeader_PointerPressed(object sender, PointerPressedEventArgs e) |
|||
{ |
|||
if (OwningColumn == null || e.Handled || !IsEnabled || e.MouseButton != MouseButton.Left) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
Point mousePosition = e.GetPosition(this); |
|||
bool handled = e.Handled; |
|||
OnMouseLeftButtonDown(ref handled, e, mousePosition); |
|||
e.Handled = handled; |
|||
|
|||
ApplyState(); |
|||
} |
|||
|
|||
private void DataGridColumnHeader_PointerReleased(object sender, PointerReleasedEventArgs e) |
|||
{ |
|||
if (OwningColumn == null || e.Handled || !IsEnabled || e.MouseButton != MouseButton.Left) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
Point mousePosition = e.GetPosition(this); |
|||
Point mousePositionHeaders = e.GetPosition(OwningGrid.ColumnHeaders); |
|||
bool handled = e.Handled; |
|||
OnMouseLeftButtonUp(ref handled, e, mousePosition, mousePositionHeaders); |
|||
e.Handled = handled; |
|||
|
|||
ApplyState(); |
|||
} |
|||
|
|||
private void DataGridColumnHeader_PointerMove(object sender, PointerEventArgs e) |
|||
{ |
|||
if (OwningGrid == null || !IsEnabled) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
Point mousePosition = e.GetPosition(this); |
|||
Point mousePositionHeaders = e.GetPosition(OwningGrid.ColumnHeaders); |
|||
|
|||
bool handled = false; |
|||
OnMouseMove(ref handled, mousePosition, mousePositionHeaders); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the column against whose top-left the reordering caret should be positioned
|
|||
/// </summary>
|
|||
/// <param name="mousePositionHeaders">Mouse position within the ColumnHeadersPresenter</param>
|
|||
/// <param name="scroll">Whether or not to scroll horizontally when a column is dragged out of bounds</param>
|
|||
/// <param name="scrollAmount">If scroll is true, returns the horizontal amount that was scrolled</param>
|
|||
/// <returns></returns>
|
|||
private DataGridColumn GetReorderingTargetColumn(Point mousePositionHeaders, bool scroll, out double scrollAmount) |
|||
{ |
|||
scrollAmount = 0; |
|||
double leftEdge = OwningGrid.ColumnsInternal.RowGroupSpacerColumn.IsRepresented ? OwningGrid.ColumnsInternal.RowGroupSpacerColumn.ActualWidth : 0; |
|||
double rightEdge = OwningGrid.CellsWidth; |
|||
if (OwningColumn.IsFrozen) |
|||
{ |
|||
rightEdge = Math.Min(rightEdge, _frozenColumnsWidth); |
|||
} |
|||
else if (OwningGrid.FrozenColumnCount > 0) |
|||
{ |
|||
leftEdge = _frozenColumnsWidth; |
|||
} |
|||
|
|||
if (mousePositionHeaders.X < leftEdge) |
|||
{ |
|||
if (scroll && |
|||
OwningGrid.HorizontalScrollBar != null && |
|||
OwningGrid.HorizontalScrollBar.IsVisible && |
|||
OwningGrid.HorizontalScrollBar.Value > 0) |
|||
{ |
|||
double newVal = mousePositionHeaders.X - leftEdge; |
|||
scrollAmount = Math.Min(newVal, OwningGrid.HorizontalScrollBar.Value); |
|||
OwningGrid.UpdateHorizontalOffset(scrollAmount + OwningGrid.HorizontalScrollBar.Value); |
|||
} |
|||
mousePositionHeaders = mousePositionHeaders.WithX(leftEdge); |
|||
} |
|||
else if (mousePositionHeaders.X >= rightEdge) |
|||
{ |
|||
if (scroll && |
|||
OwningGrid.HorizontalScrollBar != null && |
|||
OwningGrid.HorizontalScrollBar.IsVisible && |
|||
OwningGrid.HorizontalScrollBar.Value < OwningGrid.HorizontalScrollBar.Maximum) |
|||
{ |
|||
double newVal = mousePositionHeaders.X - rightEdge; |
|||
scrollAmount = Math.Min(newVal, OwningGrid.HorizontalScrollBar.Maximum - OwningGrid.HorizontalScrollBar.Value); |
|||
OwningGrid.UpdateHorizontalOffset(scrollAmount + OwningGrid.HorizontalScrollBar.Value); |
|||
} |
|||
mousePositionHeaders = mousePositionHeaders.WithX(rightEdge - 1); |
|||
} |
|||
|
|||
foreach (DataGridColumn column in OwningGrid.ColumnsInternal.GetDisplayedColumns()) |
|||
{ |
|||
Point mousePosition = OwningGrid.ColumnHeaders.Translate(column.HeaderCell, mousePositionHeaders); |
|||
double columnMiddle = column.HeaderCell.Bounds.Width / 2; |
|||
if (mousePosition.X >= 0 && mousePosition.X <= columnMiddle) |
|||
{ |
|||
return column; |
|||
} |
|||
else if (mousePosition.X > columnMiddle && mousePosition.X < column.HeaderCell.Bounds.Width) |
|||
{ |
|||
return OwningGrid.ColumnsInternal.GetNextVisibleColumn(column); |
|||
} |
|||
} |
|||
|
|||
return null; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the display index to set the column to
|
|||
/// </summary>
|
|||
/// <param name="mousePositionHeaders">Mouse position relative to the column headers presenter</param>
|
|||
/// <returns></returns>
|
|||
private int GetReorderingTargetDisplayIndex(Point mousePositionHeaders) |
|||
{ |
|||
DataGridColumn targetColumn = GetReorderingTargetColumn(mousePositionHeaders, false /*scroll*/, out double scrollAmount); |
|||
if (targetColumn != null) |
|||
{ |
|||
return targetColumn.DisplayIndex > OwningColumn.DisplayIndex ? targetColumn.DisplayIndex - 1 : targetColumn.DisplayIndex; |
|||
} |
|||
else |
|||
{ |
|||
return OwningGrid.Columns.Count - 1; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns true if the mouse is
|
|||
/// - to the left of the element, or within the left half of the element
|
|||
/// and
|
|||
/// - within the vertical range of the element, or ignoreVertical == true
|
|||
/// </summary>
|
|||
/// <param name="mousePosition"></param>
|
|||
/// <param name="element"></param>
|
|||
/// <param name="ignoreVertical"></param>
|
|||
/// <returns></returns>
|
|||
private bool IsReorderTargeted(Point mousePosition, Control element, bool ignoreVertical) |
|||
{ |
|||
Point position = this.Translate(element, mousePosition); |
|||
|
|||
return (position.X < 0 || (position.X >= 0 && position.X <= element.Bounds.Width / 2)) |
|||
&& (ignoreVertical || (position.Y >= 0 && position.Y <= element.Bounds.Height)); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Resets the static DataGridColumnHeader properties when a header loses mouse capture
|
|||
/// </summary>
|
|||
private void OnLostMouseCapture() |
|||
{ |
|||
// When we stop interacting with the column headers, we need to reset the drag mode
|
|||
// and close any popups if they are open.
|
|||
|
|||
if (_dragColumn != null && _dragColumn.HeaderCell != null) |
|||
{ |
|||
_dragColumn.HeaderCell.Cursor = _originalCursor; |
|||
} |
|||
_dragMode = DragMode.None; |
|||
_dragColumn = null; |
|||
_dragStart = null; |
|||
_lastMousePositionHeaders = null; |
|||
|
|||
if (OwningGrid != null && OwningGrid.ColumnHeaders != null) |
|||
{ |
|||
OwningGrid.ColumnHeaders.DragColumn = null; |
|||
OwningGrid.ColumnHeaders.DragIndicator = null; |
|||
OwningGrid.ColumnHeaders.DropLocationIndicator = null; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Sets up the DataGridColumnHeader for the MouseEnter event
|
|||
/// </summary>
|
|||
/// <param name="mousePosition">mouse position relative to the DataGridColumnHeader</param>
|
|||
private void OnMouseEnter(Point mousePosition) |
|||
{ |
|||
IsMouseOver = true; |
|||
SetDragCursor(mousePosition); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Sets up the DataGridColumnHeader for the MouseLeave event
|
|||
/// </summary>
|
|||
private void OnMouseLeave() |
|||
{ |
|||
IsMouseOver = false; |
|||
} |
|||
|
|||
//TODO Styles DragIndicator
|
|||
private void OnMouseMove_BeginReorder(Point mousePosition) |
|||
{ |
|||
DataGridColumnHeader dragIndicator = new DataGridColumnHeader |
|||
{ |
|||
OwningColumn = OwningColumn, |
|||
IsEnabled = false, |
|||
Content = Content, |
|||
ContentTemplate = ContentTemplate |
|||
}; |
|||
|
|||
dragIndicator.PseudoClasses.Add(":dragIndicator"); |
|||
|
|||
IControl dropLocationIndicator = OwningGrid.DropLocationIndicatorTemplate?.Build(); |
|||
|
|||
// If the user didn't style the dropLocationIndicator's Height, default to the column header's height
|
|||
if (dropLocationIndicator != null && double.IsNaN(dropLocationIndicator.Height) && dropLocationIndicator is Control element) |
|||
{ |
|||
element.Height = Bounds.Height; |
|||
} |
|||
|
|||
// pass the caret's data template to the user for modification
|
|||
DataGridColumnReorderingEventArgs columnReorderingEventArgs = new DataGridColumnReorderingEventArgs(OwningColumn) |
|||
{ |
|||
DropLocationIndicator = dropLocationIndicator, |
|||
DragIndicator = dragIndicator |
|||
}; |
|||
OwningGrid.OnColumnReordering(columnReorderingEventArgs); |
|||
if (columnReorderingEventArgs.Cancel) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
// The user didn't cancel, so prepare for the reorder
|
|||
_dragColumn = OwningColumn; |
|||
_dragMode = DragMode.Reorder; |
|||
_dragStart = mousePosition; |
|||
|
|||
// Display the reordering thumb
|
|||
OwningGrid.ColumnHeaders.DragColumn = OwningColumn; |
|||
OwningGrid.ColumnHeaders.DragIndicator = columnReorderingEventArgs.DragIndicator; |
|||
OwningGrid.ColumnHeaders.DropLocationIndicator = columnReorderingEventArgs.DropLocationIndicator; |
|||
|
|||
// If the user didn't style the dragIndicator's Width, default it to the column header's width
|
|||
if (double.IsNaN(dragIndicator.Width)) |
|||
{ |
|||
dragIndicator.Width = Bounds.Width; |
|||
} |
|||
} |
|||
|
|||
//TODO DragEvents
|
|||
private void OnMouseMove_Reorder(ref bool handled, Point mousePosition, Point mousePositionHeaders, double distanceFromLeft, double distanceFromRight) |
|||
{ |
|||
if (handled) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
//handle entry into reorder mode
|
|||
if (_dragMode == DragMode.MouseDown && _dragColumn == null && (distanceFromRight > DATAGRIDCOLUMNHEADER_resizeRegionWidth && distanceFromLeft > DATAGRIDCOLUMNHEADER_resizeRegionWidth)) |
|||
{ |
|||
handled = CanReorderColumn(OwningColumn); |
|||
|
|||
if (handled) |
|||
{ |
|||
OnMouseMove_BeginReorder(mousePosition); |
|||
} |
|||
} |
|||
|
|||
//handle reorder mode (eg, positioning of the popup)
|
|||
if (_dragMode == DragMode.Reorder && OwningGrid.ColumnHeaders.DragIndicator != null) |
|||
{ |
|||
// Find header we're hovering over
|
|||
DataGridColumn targetColumn = GetReorderingTargetColumn(mousePositionHeaders, !OwningColumn.IsFrozen /*scroll*/, out double scrollAmount); |
|||
|
|||
OwningGrid.ColumnHeaders.DragIndicatorOffset = mousePosition.X - _dragStart.Value.X + scrollAmount; |
|||
OwningGrid.ColumnHeaders.InvalidateArrange(); |
|||
|
|||
if (OwningGrid.ColumnHeaders.DropLocationIndicator != null) |
|||
{ |
|||
Point targetPosition = new Point(0, 0); |
|||
if (targetColumn == null || targetColumn == OwningGrid.ColumnsInternal.FillerColumn || targetColumn.IsFrozen != OwningColumn.IsFrozen) |
|||
{ |
|||
targetColumn = |
|||
OwningGrid.ColumnsInternal.GetLastColumn( |
|||
isVisible: true, |
|||
isFrozen: OwningColumn.IsFrozen, |
|||
isReadOnly: null); |
|||
targetPosition = targetColumn.HeaderCell.Translate(OwningGrid.ColumnHeaders, targetPosition); |
|||
|
|||
targetPosition = targetPosition.WithX(targetPosition.X + targetColumn.ActualWidth); |
|||
} |
|||
else |
|||
{ |
|||
targetPosition = targetColumn.HeaderCell.Translate(OwningGrid.ColumnHeaders, targetPosition); |
|||
} |
|||
OwningGrid.ColumnHeaders.DropLocationIndicatorOffset = targetPosition.X - scrollAmount; |
|||
} |
|||
|
|||
handled = true; |
|||
} |
|||
} |
|||
|
|||
private void OnMouseMove_Resize(ref bool handled, Point mousePositionHeaders) |
|||
{ |
|||
if (handled) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
if (_dragMode == DragMode.Resize && _dragColumn != null && _dragStart.HasValue) |
|||
{ |
|||
// resize column
|
|||
|
|||
double mouseDelta = mousePositionHeaders.X - _dragStart.Value.X; |
|||
double desiredWidth = _originalWidth + mouseDelta; |
|||
|
|||
desiredWidth = Math.Max(_dragColumn.ActualMinWidth, Math.Min(_dragColumn.ActualMaxWidth, desiredWidth)); |
|||
_dragColumn.Resize(_dragColumn.Width.Value, _dragColumn.Width.UnitType, _dragColumn.Width.DesiredValue, desiredWidth, true); |
|||
|
|||
OwningGrid.UpdateHorizontalOffset(_originalHorizontalOffset); |
|||
|
|||
handled = true; |
|||
} |
|||
} |
|||
|
|||
private void SetDragCursor(Point mousePosition) |
|||
{ |
|||
if (_dragMode != DragMode.None || OwningGrid == null || OwningColumn == null) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
// set mouse if we can resize column
|
|||
|
|||
double distanceFromLeft = mousePosition.X; |
|||
double distanceFromRight = Bounds.Width - distanceFromLeft; |
|||
DataGridColumn currentColumn = OwningColumn; |
|||
DataGridColumn previousColumn = null; |
|||
|
|||
if (!(OwningColumn is DataGridFillerColumn)) |
|||
{ |
|||
previousColumn = OwningGrid.ColumnsInternal.GetPreviousVisibleNonFillerColumn(currentColumn); |
|||
} |
|||
|
|||
if ((distanceFromRight <= DATAGRIDCOLUMNHEADER_resizeRegionWidth && currentColumn != null && CanResizeColumn(currentColumn)) || |
|||
(distanceFromLeft <= DATAGRIDCOLUMNHEADER_resizeRegionWidth && previousColumn != null && CanResizeColumn(previousColumn))) |
|||
{ |
|||
var resizeCursor = _resizeCursor.Value; |
|||
if (Cursor != resizeCursor) |
|||
{ |
|||
_originalCursor = Cursor; |
|||
Cursor = resizeCursor; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
Cursor = _originalCursor; |
|||
} |
|||
} |
|||
|
|||
} |
|||
|
|||
} |
|||
File diff suppressed because it is too large
@ -0,0 +1,696 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Collections; |
|||
using System; |
|||
using System.Linq; |
|||
using System.Collections; |
|||
using System.Collections.Generic; |
|||
using System.Collections.Specialized; |
|||
using System.ComponentModel; |
|||
using System.Diagnostics; |
|||
using System.Reflection; |
|||
using System.ComponentModel.DataAnnotations; |
|||
using Avalonia.Utilities; |
|||
using Avalonia.Controls.Utils; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class DataGridDataConnection |
|||
{ |
|||
|
|||
private int _backupSlotForCurrentChanged; |
|||
private int _columnForCurrentChanged; |
|||
private PropertyInfo[] _dataProperties; |
|||
private IEnumerable _dataSource; |
|||
private Type _dataType; |
|||
private bool _expectingCurrentChanged; |
|||
private object _itemToSelectOnCurrentChanged; |
|||
private DataGrid _owner; |
|||
private bool _scrollForCurrentChanged; |
|||
private DataGridSelectionAction _selectionActionForCurrentChanged; |
|||
|
|||
public DataGridDataConnection(DataGrid owner) |
|||
{ |
|||
_owner = owner; |
|||
} |
|||
|
|||
public bool AllowEdit |
|||
{ |
|||
get |
|||
{ |
|||
if (List == null) |
|||
{ |
|||
return true; |
|||
} |
|||
else |
|||
{ |
|||
return !List.IsReadOnly; |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// True if the collection view says it can sort.
|
|||
/// </summary>
|
|||
public bool AllowSort |
|||
{ |
|||
get |
|||
{ |
|||
if (CollectionView == null || |
|||
(EditableCollectionView != null && (EditableCollectionView.IsAddingNew || EditableCollectionView.IsEditingItem))) |
|||
{ |
|||
return false; |
|||
} |
|||
else |
|||
{ |
|||
return CollectionView.CanSort; |
|||
} |
|||
} |
|||
} |
|||
|
|||
public bool CommittingEdit |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
public int Count |
|||
{ |
|||
get |
|||
{ |
|||
IList list = List; |
|||
if (list != null) |
|||
{ |
|||
return list.Count; |
|||
} |
|||
|
|||
if(DataSource is DataGridCollectionView cv) |
|||
{ |
|||
return cv.Count; |
|||
} |
|||
|
|||
return DataSource?.Cast<object>().Count() ?? 0; |
|||
} |
|||
} |
|||
|
|||
public bool DataIsPrimitive |
|||
{ |
|||
get |
|||
{ |
|||
return DataTypeIsPrimitive(DataType); |
|||
} |
|||
} |
|||
|
|||
public PropertyInfo[] DataProperties |
|||
{ |
|||
get |
|||
{ |
|||
if (_dataProperties == null) |
|||
{ |
|||
UpdateDataProperties(); |
|||
} |
|||
return _dataProperties; |
|||
} |
|||
} |
|||
|
|||
public IEnumerable DataSource |
|||
{ |
|||
get |
|||
{ |
|||
return _dataSource; |
|||
} |
|||
set |
|||
{ |
|||
_dataSource = value; |
|||
// Because the DataSource is changing, we need to reset our cached values for DataType and DataProperties,
|
|||
// which are dependent on the current DataSource
|
|||
_dataType = null; |
|||
UpdateDataProperties(); |
|||
} |
|||
} |
|||
|
|||
public Type DataType |
|||
{ |
|||
get |
|||
{ |
|||
// We need to use the raw ItemsSource as opposed to DataSource because DataSource
|
|||
// may be the ItemsSource wrapped in a collection view, in which case we wouldn't
|
|||
// be able to take T to be the type if we're given IEnumerable<T>
|
|||
if (_dataType == null && _owner.Items != null) |
|||
{ |
|||
_dataType = _owner.Items.GetItemType(); |
|||
} |
|||
return _dataType; |
|||
} |
|||
} |
|||
|
|||
public bool EventsWired |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
private bool IsGrouping |
|||
{ |
|||
get |
|||
{ |
|||
return (CollectionView != null) |
|||
&& CollectionView.CanGroup |
|||
&& CollectionView.IsGrouping |
|||
&& (CollectionView.GroupingDepth > 0); |
|||
} |
|||
} |
|||
|
|||
public IList List |
|||
{ |
|||
get |
|||
{ |
|||
return DataSource as IList; |
|||
} |
|||
} |
|||
|
|||
public bool ShouldAutoGenerateColumns |
|||
{ |
|||
get |
|||
{ |
|||
return false; |
|||
} |
|||
} |
|||
|
|||
public IDataGridCollectionView CollectionView |
|||
{ |
|||
get |
|||
{ |
|||
return DataSource as IDataGridCollectionView; |
|||
} |
|||
} |
|||
public IDataGridEditableCollectionView EditableCollectionView |
|||
{ |
|||
get |
|||
{ |
|||
return DataSource as IDataGridEditableCollectionView; |
|||
} |
|||
} |
|||
|
|||
public DataGridSortDescriptionCollection SortDescriptions |
|||
{ |
|||
get |
|||
{ |
|||
if (CollectionView != null && CollectionView.CanSort) |
|||
{ |
|||
return CollectionView.SortDescriptions; |
|||
} |
|||
else |
|||
{ |
|||
return null; |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Puts the entity into editing mode if possible
|
|||
/// </summary>
|
|||
/// <param name="dataItem">The entity to edit</param>
|
|||
/// <returns>True if editing was started</returns>
|
|||
public bool BeginEdit(object dataItem) |
|||
{ |
|||
if (dataItem == null) |
|||
{ |
|||
return false; |
|||
} |
|||
|
|||
IDataGridEditableCollectionView editableCollectionView = EditableCollectionView; |
|||
if (editableCollectionView != null) |
|||
{ |
|||
if (editableCollectionView.IsEditingItem && (dataItem == editableCollectionView.CurrentEditItem)) |
|||
{ |
|||
return true; |
|||
} |
|||
else |
|||
{ |
|||
editableCollectionView.EditItem(dataItem); |
|||
return editableCollectionView.IsEditingItem; |
|||
} |
|||
} |
|||
|
|||
if (dataItem is IEditableObject editableDataItem) |
|||
{ |
|||
editableDataItem.BeginEdit(); |
|||
return true; |
|||
} |
|||
|
|||
return true; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Cancels the current entity editing and exits the editing mode.
|
|||
/// </summary>
|
|||
/// <param name="dataItem">The entity being edited</param>
|
|||
/// <returns>True if a cancellation operation was invoked.</returns>
|
|||
public bool CancelEdit(object dataItem) |
|||
{ |
|||
IDataGridEditableCollectionView editableCollectionView = EditableCollectionView; |
|||
if (editableCollectionView != null) |
|||
{ |
|||
if (editableCollectionView.CanCancelEdit) |
|||
{ |
|||
editableCollectionView.CancelEdit(); |
|||
return true; |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
if (dataItem is IEditableObject editableDataItem) |
|||
{ |
|||
editableDataItem.CancelEdit(); |
|||
return true; |
|||
} |
|||
|
|||
return true; |
|||
} |
|||
|
|||
public static bool CanEdit(Type type) |
|||
{ |
|||
Debug.Assert(type != null); |
|||
|
|||
type = type.GetNonNullableType(); |
|||
|
|||
return |
|||
type.IsEnum |
|||
|| type == typeof(System.String) |
|||
|| type == typeof(System.Char) |
|||
|| type == typeof(System.DateTime) |
|||
|| type == typeof(System.Boolean) |
|||
|| type == typeof(System.Byte) |
|||
|| type == typeof(System.SByte) |
|||
|| type == typeof(System.Single) |
|||
|| type == typeof(System.Double) |
|||
|| type == typeof(System.Decimal) |
|||
|| type == typeof(System.Int16) |
|||
|| type == typeof(System.Int32) |
|||
|| type == typeof(System.Int64) |
|||
|| type == typeof(System.UInt16) |
|||
|| type == typeof(System.UInt32) |
|||
|| type == typeof(System.UInt64); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Commits the current entity editing and exits the editing mode.
|
|||
/// </summary>
|
|||
/// <param name="dataItem">The entity being edited</param>
|
|||
/// <returns>True if a commit operation was invoked.</returns>
|
|||
public bool EndEdit(object dataItem) |
|||
{ |
|||
IDataGridEditableCollectionView editableCollectionView = EditableCollectionView; |
|||
if (editableCollectionView != null) |
|||
{ |
|||
// IEditableCollectionView.CommitEdit can potentially change currency. If it does,
|
|||
// we don't want to attempt a second commit inside our CurrentChanging event handler.
|
|||
_owner.NoCurrentCellChangeCount++; |
|||
CommittingEdit = true; |
|||
try |
|||
{ |
|||
editableCollectionView.CommitEdit(); |
|||
} |
|||
finally |
|||
{ |
|||
_owner.NoCurrentCellChangeCount--; |
|||
CommittingEdit = false; |
|||
} |
|||
return true; |
|||
} |
|||
|
|||
if (dataItem is IEditableObject editableDataItem) |
|||
{ |
|||
editableDataItem.EndEdit(); |
|||
} |
|||
|
|||
return true; |
|||
} |
|||
|
|||
// Assumes index >= 0, returns null if index >= Count
|
|||
public object GetDataItem(int index) |
|||
{ |
|||
Debug.Assert(index >= 0); |
|||
|
|||
IList list = List; |
|||
if (list != null) |
|||
{ |
|||
return (index < list.Count) ? list[index] : null; |
|||
} |
|||
|
|||
if (DataSource is DataGridCollectionView collectionView) |
|||
{ |
|||
return (index < collectionView.Count) ? collectionView.GetItemAt(index) : null; |
|||
} |
|||
|
|||
IEnumerable enumerable = DataSource; |
|||
if (enumerable != null) |
|||
{ |
|||
IEnumerator enumerator = enumerable.GetEnumerator(); |
|||
int i = -1; |
|||
while (enumerator.MoveNext() && i < index) |
|||
{ |
|||
i++; |
|||
if (i == index) |
|||
{ |
|||
return enumerator.Current; |
|||
} |
|||
} |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
public bool GetPropertyIsReadOnly(string propertyName) |
|||
{ |
|||
if (DataType != null) |
|||
{ |
|||
if (!String.IsNullOrEmpty(propertyName)) |
|||
{ |
|||
Type propertyType = DataType; |
|||
PropertyInfo propertyInfo = null; |
|||
List<string> propertyNames = TypeHelper.SplitPropertyPath(propertyName); |
|||
for (int i = 0; i < propertyNames.Count; i++) |
|||
{ |
|||
propertyInfo = propertyType.GetPropertyOrIndexer(propertyNames[i], out object[] index); |
|||
if (propertyInfo == null || propertyType.GetIsReadOnly() || propertyInfo.GetIsReadOnly()) |
|||
{ |
|||
// Either the data type is read-only, the property doesn't exist, or it does exist but is read-only
|
|||
return true; |
|||
} |
|||
|
|||
// Check if EditableAttribute is defined on the property and if it indicates uneditable
|
|||
object[] attributes = propertyInfo.GetCustomAttributes(typeof(EditableAttribute), true); |
|||
if (attributes != null && attributes.Length > 0) |
|||
{ |
|||
EditableAttribute editableAttribute = attributes[0] as EditableAttribute; |
|||
Debug.Assert(editableAttribute != null); |
|||
if (!editableAttribute.AllowEdit) |
|||
{ |
|||
return true; |
|||
} |
|||
} |
|||
propertyType = propertyInfo.PropertyType.GetNonNullableType(); |
|||
} |
|||
return propertyInfo == null || !propertyInfo.CanWrite || !AllowEdit || !CanEdit(propertyType); |
|||
} |
|||
else if (DataType.GetIsReadOnly()) |
|||
{ |
|||
return true; |
|||
} |
|||
} |
|||
return !AllowEdit; |
|||
} |
|||
|
|||
public int IndexOf(object dataItem) |
|||
{ |
|||
IList list = List; |
|||
if (list != null) |
|||
{ |
|||
return list.IndexOf(dataItem); |
|||
} |
|||
|
|||
if (DataSource is DataGridCollectionView cv) |
|||
{ |
|||
return cv.IndexOf(dataItem); |
|||
} |
|||
|
|||
IEnumerable enumerable = DataSource; |
|||
if (enumerable != null && dataItem != null) |
|||
{ |
|||
int index = 0; |
|||
foreach (object dataItemTmp in enumerable) |
|||
{ |
|||
if ((dataItem == null && dataItemTmp == null) || |
|||
dataItem.Equals(dataItemTmp)) |
|||
{ |
|||
return index; |
|||
} |
|||
index++; |
|||
} |
|||
} |
|||
return -1; |
|||
} |
|||
|
|||
internal void ClearDataProperties() |
|||
{ |
|||
_dataProperties = null; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Creates a collection view around the DataGrid's source. ICollectionViewFactory is
|
|||
/// used if the source implements it. Otherwise a PagedCollectionView is returned.
|
|||
/// </summary>
|
|||
/// <param name="source">Enumerable source for which to create a view</param>
|
|||
/// <returns>ICollectionView view over the provided source</returns>
|
|||
internal static IDataGridCollectionView CreateView(IEnumerable source) |
|||
{ |
|||
Debug.Assert(source != null, "source unexpectedly null"); |
|||
Debug.Assert(!(source is IDataGridCollectionView), "source is an ICollectionView"); |
|||
|
|||
IDataGridCollectionView collectionView = null; |
|||
|
|||
if (source is IDataGridCollectionViewFactory collectionViewFactory) |
|||
{ |
|||
// If the source is a collection view factory, give it a chance to produce a custom collection view.
|
|||
collectionView = collectionViewFactory.CreateView(); |
|||
// Intentionally not catching potential exception thrown by ICollectionViewFactory.CreateView().
|
|||
} |
|||
if (collectionView == null) |
|||
{ |
|||
// If we still do not have a collection view, default to a PagedCollectionView.
|
|||
collectionView = new DataGridCollectionView(source); |
|||
} |
|||
return collectionView; |
|||
} |
|||
|
|||
internal static bool DataTypeIsPrimitive(Type dataType) |
|||
{ |
|||
if (dataType != null) |
|||
{ |
|||
Type type = TypeHelper.GetNonNullableType(dataType); // no-opt if dataType isn't nullable
|
|||
return type.IsPrimitive || type == typeof(string) || type == typeof(DateTime) || type == typeof(Decimal); |
|||
} |
|||
else |
|||
{ |
|||
return false; |
|||
} |
|||
} |
|||
|
|||
internal void MoveCurrentTo(object item, int backupSlot, int columnIndex, DataGridSelectionAction action, bool scrollIntoView) |
|||
{ |
|||
if (CollectionView != null) |
|||
{ |
|||
_expectingCurrentChanged = true; |
|||
_columnForCurrentChanged = columnIndex; |
|||
_itemToSelectOnCurrentChanged = item; |
|||
_selectionActionForCurrentChanged = action; |
|||
_scrollForCurrentChanged = scrollIntoView; |
|||
_backupSlotForCurrentChanged = backupSlot; |
|||
|
|||
CollectionView.MoveCurrentTo(item is DataGridCollectionViewGroup ? null : item); |
|||
|
|||
_expectingCurrentChanged = false; |
|||
} |
|||
} |
|||
|
|||
internal void UnWireEvents(IEnumerable value) |
|||
{ |
|||
if (value is INotifyCollectionChanged notifyingDataSource) |
|||
{ |
|||
notifyingDataSource.CollectionChanged -= NotifyingDataSource_CollectionChanged; |
|||
} |
|||
|
|||
if (SortDescriptions != null) |
|||
{ |
|||
SortDescriptions.CollectionChanged -= CollectionView_SortDescriptions_CollectionChanged; |
|||
} |
|||
|
|||
if (CollectionView != null) |
|||
{ |
|||
CollectionView.CurrentChanged -= CollectionView_CurrentChanged; |
|||
CollectionView.CurrentChanging -= CollectionView_CurrentChanging; |
|||
} |
|||
|
|||
EventsWired = false; |
|||
} |
|||
|
|||
internal void WireEvents(IEnumerable value) |
|||
{ |
|||
if (value is INotifyCollectionChanged notifyingDataSource) |
|||
{ |
|||
notifyingDataSource.CollectionChanged += NotifyingDataSource_CollectionChanged; |
|||
} |
|||
|
|||
if (SortDescriptions != null) |
|||
{ |
|||
SortDescriptions.CollectionChanged += CollectionView_SortDescriptions_CollectionChanged; |
|||
} |
|||
|
|||
if (CollectionView != null) |
|||
{ |
|||
CollectionView.CurrentChanged += CollectionView_CurrentChanged; |
|||
CollectionView.CurrentChanging += CollectionView_CurrentChanging; |
|||
} |
|||
|
|||
EventsWired = true; |
|||
} |
|||
|
|||
private void CollectionView_CurrentChanged(object sender, EventArgs e) |
|||
{ |
|||
if (_expectingCurrentChanged) |
|||
{ |
|||
// Committing Edit could cause our item to move to a group that no longer exists. In
|
|||
// this case, we need to update the item.
|
|||
if (_itemToSelectOnCurrentChanged is DataGridCollectionViewGroup collectionViewGroup) |
|||
{ |
|||
DataGridRowGroupInfo groupInfo = _owner.RowGroupInfoFromCollectionViewGroup(collectionViewGroup); |
|||
if (groupInfo == null) |
|||
{ |
|||
// Move to the next slot if the target slot isn't visible
|
|||
if (!_owner.IsSlotVisible(_backupSlotForCurrentChanged)) |
|||
{ |
|||
_backupSlotForCurrentChanged = _owner.GetNextVisibleSlot(_backupSlotForCurrentChanged); |
|||
} |
|||
// Move to the next best slot if we've moved past all the slots. This could happen if multiple
|
|||
// groups were removed.
|
|||
if (_backupSlotForCurrentChanged >= _owner.SlotCount) |
|||
{ |
|||
_backupSlotForCurrentChanged = _owner.GetPreviousVisibleSlot(_owner.SlotCount); |
|||
} |
|||
// Update the itemToSelect
|
|||
int newCurrentPosition = -1; |
|||
_itemToSelectOnCurrentChanged = _owner.ItemFromSlot(_backupSlotForCurrentChanged, ref newCurrentPosition); |
|||
} |
|||
} |
|||
|
|||
_owner.ProcessSelectionAndCurrency( |
|||
_columnForCurrentChanged, |
|||
_itemToSelectOnCurrentChanged, |
|||
_backupSlotForCurrentChanged, |
|||
_selectionActionForCurrentChanged, |
|||
_scrollForCurrentChanged); |
|||
} |
|||
else if (CollectionView != null) |
|||
{ |
|||
_owner.UpdateStateOnCurrentChanged(CollectionView.CurrentItem, CollectionView.CurrentPosition); |
|||
} |
|||
} |
|||
|
|||
private void CollectionView_CurrentChanging(object sender, DataGridCurrentChangingEventArgs e) |
|||
{ |
|||
if (_owner.NoCurrentCellChangeCount == 0 && |
|||
!_expectingCurrentChanged && |
|||
!CommittingEdit && |
|||
!_owner.CommitEdit()) |
|||
{ |
|||
// If CommitEdit failed, then the user has most likely input invalid data.
|
|||
// We should cancel the current change if we can, otherwise we have to abort the edit.
|
|||
if (e.IsCancelable) |
|||
{ |
|||
e.Cancel = true; |
|||
} |
|||
else |
|||
{ |
|||
_owner.CancelEdit(DataGridEditingUnit.Row, false); |
|||
} |
|||
} |
|||
} |
|||
|
|||
private void CollectionView_SortDescriptions_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e) |
|||
{ |
|||
if (_owner.ColumnsItemsInternal.Count == 0) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
// refresh sort description
|
|||
foreach (DataGridColumn column in _owner.ColumnsItemsInternal) |
|||
{ |
|||
column.HeaderCell.ApplyState(); |
|||
} |
|||
} |
|||
|
|||
private void NotifyingDataSource_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e) |
|||
{ |
|||
if (_owner.LoadingOrUnloadingRow) |
|||
{ |
|||
throw DataGridError.DataGrid.CannotChangeItemsWhenLoadingRows(); |
|||
} |
|||
switch (e.Action) |
|||
{ |
|||
case NotifyCollectionChangedAction.Add: |
|||
Debug.Assert(e.NewItems != null, "Unexpected NotifyCollectionChangedAction.Add notification"); |
|||
if (ShouldAutoGenerateColumns) |
|||
{ |
|||
// The columns are also affected (not just rows) in this case so we need to reset everything
|
|||
_owner.InitializeElements(false /*recycleRows*/); |
|||
} |
|||
else if (!IsGrouping) |
|||
{ |
|||
// If we're grouping then we handle this through the CollectionViewGroup notifications
|
|||
// According to WPF, Add is a single item operation
|
|||
Debug.Assert(e.NewItems.Count == 1); |
|||
_owner.InsertRowAt(e.NewStartingIndex); |
|||
} |
|||
break; |
|||
case NotifyCollectionChangedAction.Remove: |
|||
IList removedItems = e.OldItems; |
|||
if (removedItems == null || e.OldStartingIndex < 0) |
|||
{ |
|||
Debug.Assert(false, "Unexpected NotifyCollectionChangedAction.Remove notification"); |
|||
return; |
|||
} |
|||
if (!IsGrouping) |
|||
{ |
|||
// If we're grouping then we handle this through the CollectionViewGroup notifications
|
|||
// According to WPF, Remove is a single item operation
|
|||
foreach (object item in e.OldItems) |
|||
{ |
|||
Debug.Assert(item != null); |
|||
_owner.RemoveRowAt(e.OldStartingIndex, item); |
|||
} |
|||
} |
|||
break; |
|||
case NotifyCollectionChangedAction.Replace: |
|||
throw new NotSupportedException(); //
|
|||
|
|||
case NotifyCollectionChangedAction.Reset: |
|||
// Did the data type change during the reset? If not, we can recycle
|
|||
// the existing rows instead of having to clear them all. We still need to clear our cached
|
|||
// values for DataType and DataProperties, though, because the collection has been reset.
|
|||
Type previousDataType = _dataType; |
|||
_dataType = null; |
|||
if (previousDataType != DataType) |
|||
{ |
|||
ClearDataProperties(); |
|||
_owner.InitializeElements(false /*recycleRows*/); |
|||
} |
|||
else |
|||
{ |
|||
_owner.InitializeElements(!ShouldAutoGenerateColumns /*recycleRows*/); |
|||
} |
|||
break; |
|||
} |
|||
} |
|||
|
|||
private void UpdateDataProperties() |
|||
{ |
|||
Type dataType = DataType; |
|||
|
|||
if (DataSource != null && dataType != null && !DataTypeIsPrimitive(dataType)) |
|||
{ |
|||
_dataProperties = dataType.GetProperties(BindingFlags.Public | BindingFlags.Instance); |
|||
Debug.Assert(_dataProperties != null); |
|||
} |
|||
else |
|||
{ |
|||
_dataProperties = null; |
|||
} |
|||
} |
|||
|
|||
} |
|||
} |
|||
@ -0,0 +1,364 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Media; |
|||
using System; |
|||
using System.Collections.Generic; |
|||
using System.Diagnostics; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class DataGridDisplayData |
|||
{ |
|||
private Stack<DataGridRow> _fullyRecycledRows; // list of Rows that have been fully recycled (Collapsed)
|
|||
private int _headScrollingElements; // index of the row in _scrollingRows that is the first displayed row
|
|||
private DataGrid _owner; |
|||
private Stack<DataGridRow> _recyclableRows; // list of Rows which have not been fully recycled (avoids Measure in several cases)
|
|||
private List<Control> _scrollingElements; // circular list of displayed elements
|
|||
private Stack<DataGridRowGroupHeader> _fullyRecycledGroupHeaders; // list of GroupHeaders that have been fully recycled (Collapsed)
|
|||
private Stack<DataGridRowGroupHeader> _recyclableGroupHeaders; // list of GroupHeaders which have not been fully recycled (avoids Measure in several cases)
|
|||
|
|||
public DataGridDisplayData(DataGrid owner) |
|||
{ |
|||
_owner = owner; |
|||
|
|||
ResetSlotIndexes(); |
|||
FirstDisplayedScrollingCol = -1; |
|||
LastTotallyDisplayedScrollingCol = -1; |
|||
|
|||
_scrollingElements = new List<Control>(); |
|||
_recyclableRows = new Stack<DataGridRow>(); |
|||
_fullyRecycledRows = new Stack<DataGridRow>(); |
|||
_recyclableGroupHeaders = new Stack<DataGridRowGroupHeader>(); |
|||
_fullyRecycledGroupHeaders = new Stack<DataGridRowGroupHeader>(); |
|||
} |
|||
|
|||
public int FirstDisplayedScrollingCol |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public int FirstScrollingSlot |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public int LastScrollingSlot |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public int LastTotallyDisplayedScrollingCol |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public int NumDisplayedScrollingElements |
|||
{ |
|||
get |
|||
{ |
|||
return _scrollingElements.Count; |
|||
} |
|||
} |
|||
|
|||
public int NumTotallyDisplayedScrollingElements |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal double PendingVerticalScrollHeight |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal void AddRecylableRow(DataGridRow row) |
|||
{ |
|||
Debug.Assert(!_recyclableRows.Contains(row)); |
|||
row.DetachFromDataGrid(true); |
|||
_recyclableRows.Push(row); |
|||
} |
|||
|
|||
internal DataGridRowGroupHeader GetUsedGroupHeader() |
|||
{ |
|||
if (_recyclableGroupHeaders.Count > 0) |
|||
{ |
|||
return _recyclableGroupHeaders.Pop(); |
|||
} |
|||
else if (_fullyRecycledGroupHeaders.Count > 0) |
|||
{ |
|||
// For fully recycled rows, we need to set the Visibility back to Visible
|
|||
DataGridRowGroupHeader groupHeader = _fullyRecycledGroupHeaders.Pop(); |
|||
groupHeader.IsVisible = true; |
|||
return groupHeader; |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
internal void AddRecylableRowGroupHeader(DataGridRowGroupHeader groupHeader) |
|||
{ |
|||
Debug.Assert(!_recyclableGroupHeaders.Contains(groupHeader)); |
|||
groupHeader.IsRecycled = true; |
|||
_recyclableGroupHeaders.Push(groupHeader); |
|||
} |
|||
|
|||
internal void ClearElements(bool recycle) |
|||
{ |
|||
ResetSlotIndexes(); |
|||
if (recycle) |
|||
{ |
|||
foreach (Control element in _scrollingElements) |
|||
{ |
|||
if (element is DataGridRow row) |
|||
{ |
|||
if (row.IsRecyclable) |
|||
{ |
|||
AddRecylableRow(row); |
|||
} |
|||
else |
|||
{ |
|||
row.Clip = new RectangleGeometry(); |
|||
} |
|||
} |
|||
else if (element is DataGridRowGroupHeader groupHeader) |
|||
{ |
|||
AddRecylableRowGroupHeader(groupHeader); |
|||
} |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
_recyclableRows.Clear(); |
|||
_fullyRecycledRows.Clear(); |
|||
_recyclableGroupHeaders.Clear(); |
|||
_fullyRecycledGroupHeaders.Clear(); |
|||
} |
|||
_scrollingElements.Clear(); |
|||
} |
|||
|
|||
internal void CorrectSlotsAfterDeletion(int slot, bool wasCollapsed) |
|||
{ |
|||
if (wasCollapsed) |
|||
{ |
|||
if (slot > FirstScrollingSlot) |
|||
{ |
|||
LastScrollingSlot--; |
|||
} |
|||
} |
|||
else if (_owner.IsSlotVisible(slot)) |
|||
{ |
|||
UnloadScrollingElement(slot, true /*updateSlotInformation*/, true /*wasDeleted*/); |
|||
} |
|||
// This cannot be an else condition because if there are 2 rows left, and you delete the first one
|
|||
// then these indexes need to be updated as well
|
|||
if (slot < FirstScrollingSlot) |
|||
{ |
|||
FirstScrollingSlot--; |
|||
LastScrollingSlot--; |
|||
} |
|||
} |
|||
|
|||
internal void CorrectSlotsAfterInsertion(int slot, Control element, bool isCollapsed) |
|||
{ |
|||
if (slot < FirstScrollingSlot) |
|||
{ |
|||
// The row was inserted above our viewport, just update our indexes
|
|||
FirstScrollingSlot++; |
|||
LastScrollingSlot++; |
|||
} |
|||
else if (isCollapsed && (slot <= LastScrollingSlot)) |
|||
{ |
|||
LastScrollingSlot++; |
|||
} |
|||
else if ((_owner.GetPreviousVisibleSlot(slot) <= LastScrollingSlot) || (LastScrollingSlot == -1)) |
|||
{ |
|||
Debug.Assert(element != null); |
|||
// The row was inserted in our viewport, add it as a scrolling row
|
|||
LoadScrollingSlot(slot, element, true /*updateSlotInformation*/); |
|||
} |
|||
} |
|||
|
|||
private int GetCircularListIndex(int slot, bool wrap) |
|||
{ |
|||
int index = slot - FirstScrollingSlot - _headScrollingElements - _owner.GetCollapsedSlotCount(FirstScrollingSlot, slot); |
|||
return wrap ? index % _scrollingElements.Count : index; |
|||
} |
|||
|
|||
internal void FullyRecycleElements() |
|||
{ |
|||
// Fully recycle Recycleable rows and transfer them to Recycled rows
|
|||
while (_recyclableRows.Count > 0) |
|||
{ |
|||
DataGridRow row = _recyclableRows.Pop(); |
|||
Debug.Assert(row != null); |
|||
row.IsVisible = false; |
|||
Debug.Assert(!_fullyRecycledRows.Contains(row)); |
|||
_fullyRecycledRows.Push(row); |
|||
} |
|||
// Fully recycle Recycleable GroupHeaders and transfer them to Recycled GroupHeaders
|
|||
while (_recyclableGroupHeaders.Count > 0) |
|||
{ |
|||
DataGridRowGroupHeader groupHeader = _recyclableGroupHeaders.Pop(); |
|||
Debug.Assert(groupHeader != null); |
|||
groupHeader.IsVisible = false; |
|||
Debug.Assert(!_fullyRecycledGroupHeaders.Contains(groupHeader)); |
|||
_fullyRecycledGroupHeaders.Push(groupHeader); |
|||
} |
|||
} |
|||
|
|||
internal Control GetDisplayedElement(int slot) |
|||
{ |
|||
Debug.Assert(slot >= FirstScrollingSlot); |
|||
Debug.Assert(slot <= LastScrollingSlot); |
|||
|
|||
return _scrollingElements[GetCircularListIndex(slot, true /*wrap*/)]; |
|||
} |
|||
|
|||
internal DataGridRow GetDisplayedRow(int rowIndex) |
|||
{ |
|||
|
|||
return GetDisplayedElement(_owner.SlotFromRowIndex(rowIndex)) as DataGridRow; |
|||
} |
|||
|
|||
// Returns an enumeration of the displayed scrolling rows in order starting with the FirstDisplayedScrollingRow
|
|||
internal IEnumerable<Control> GetScrollingElements() |
|||
{ |
|||
return GetScrollingElements(null); |
|||
} |
|||
|
|||
internal IEnumerable<Control> GetScrollingElements(Predicate<object> filter) |
|||
{ |
|||
for (int i = 0; i < _scrollingElements.Count; i++) |
|||
{ |
|||
Control element = _scrollingElements[(_headScrollingElements + i) % _scrollingElements.Count]; |
|||
if (filter == null || filter(element)) |
|||
{ |
|||
// _scrollingRows is a circular list that wraps
|
|||
yield return element; |
|||
} |
|||
} |
|||
} |
|||
|
|||
internal IEnumerable<Control> GetScrollingRows() |
|||
{ |
|||
return GetScrollingElements(element => element is DataGridRow); |
|||
} |
|||
|
|||
internal DataGridRow GetUsedRow() |
|||
{ |
|||
if (_recyclableRows.Count > 0) |
|||
{ |
|||
return _recyclableRows.Pop(); |
|||
} |
|||
else if (_fullyRecycledRows.Count > 0) |
|||
{ |
|||
// For fully recycled rows, we need to set the Visibility back to Visible
|
|||
DataGridRow row = _fullyRecycledRows.Pop(); |
|||
row.IsVisible = true; |
|||
return row; |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
// Tracks the row at index rowIndex as a scrolling row
|
|||
internal void LoadScrollingSlot(int slot, Control element, bool updateSlotInformation) |
|||
{ |
|||
if (_scrollingElements.Count == 0) |
|||
{ |
|||
SetScrollingSlots(slot); |
|||
_scrollingElements.Add(element); |
|||
} |
|||
else |
|||
{ |
|||
// The slot should be adjacent to the other slots being displayed
|
|||
Debug.Assert(slot >= _owner.GetPreviousVisibleSlot(FirstScrollingSlot) && slot <= _owner.GetNextVisibleSlot(LastScrollingSlot)); |
|||
if (updateSlotInformation) |
|||
{ |
|||
if (slot < FirstScrollingSlot) |
|||
{ |
|||
FirstScrollingSlot = slot; |
|||
} |
|||
else |
|||
{ |
|||
LastScrollingSlot = _owner.GetNextVisibleSlot(LastScrollingSlot); |
|||
} |
|||
} |
|||
int insertIndex = GetCircularListIndex(slot, false /*wrap*/); |
|||
if (insertIndex > _scrollingElements.Count) |
|||
{ |
|||
// We need to wrap around from the bottom to the top of our circular list; as a result the head of the list moves forward
|
|||
insertIndex -= _scrollingElements.Count; |
|||
_headScrollingElements++; |
|||
} |
|||
_scrollingElements.Insert(insertIndex, element); |
|||
} |
|||
} |
|||
|
|||
private void ResetSlotIndexes() |
|||
{ |
|||
SetScrollingSlots(-1); |
|||
NumTotallyDisplayedScrollingElements = 0; |
|||
_headScrollingElements = 0; |
|||
} |
|||
|
|||
private void SetScrollingSlots(int newValue) |
|||
{ |
|||
FirstScrollingSlot = newValue; |
|||
LastScrollingSlot = newValue; |
|||
} |
|||
|
|||
// Stops tracking the element at the given slot as a scrolling element
|
|||
internal void UnloadScrollingElement(int slot, bool updateSlotInformation, bool wasDeleted) |
|||
{ |
|||
Debug.Assert(_owner.IsSlotVisible(slot)); |
|||
int elementIndex = GetCircularListIndex(slot, false /*wrap*/); |
|||
if (elementIndex > _scrollingElements.Count) |
|||
{ |
|||
// We need to wrap around from the top to the bottom of our circular list
|
|||
elementIndex -= _scrollingElements.Count; |
|||
_headScrollingElements--; |
|||
} |
|||
_scrollingElements.RemoveAt(elementIndex); |
|||
|
|||
if (updateSlotInformation) |
|||
{ |
|||
if (slot == FirstScrollingSlot && !wasDeleted) |
|||
{ |
|||
FirstScrollingSlot = _owner.GetNextVisibleSlot(FirstScrollingSlot); |
|||
} |
|||
else |
|||
{ |
|||
LastScrollingSlot = _owner.GetPreviousVisibleSlot(LastScrollingSlot); |
|||
} |
|||
if (LastScrollingSlot < FirstScrollingSlot) |
|||
{ |
|||
ResetSlotIndexes(); |
|||
} |
|||
} |
|||
} |
|||
|
|||
#if DEBUG
|
|||
internal void PrintDisplay() |
|||
{ |
|||
foreach (Control element in GetScrollingElements()) |
|||
{ |
|||
if (element is DataGridRow row) |
|||
{ |
|||
Debug.WriteLine(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Slot: {0} Row: {1} ", row.Slot, row.Index)); |
|||
} |
|||
else if (element is DataGridRowGroupHeader groupHeader) |
|||
{ |
|||
Debug.WriteLine(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Slot: {0} GroupHeader: {1}", groupHeader.RowGroupInfo.Slot, groupHeader.RowGroupInfo.CollectionViewGroup.Key)); |
|||
} |
|||
} |
|||
} |
|||
#endif
|
|||
} |
|||
} |
|||
@ -0,0 +1,106 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// Used to specify action to take out of edit mode.
|
|||
/// </summary>
|
|||
public enum DataGridEditAction |
|||
{ |
|||
/// <summary>
|
|||
/// Cancel the changes.
|
|||
/// </summary>
|
|||
Cancel, |
|||
|
|||
/// <summary>
|
|||
/// Commit edited value.
|
|||
/// </summary>
|
|||
Commit |
|||
} |
|||
|
|||
// Determines the location and visibility of the editing row.
|
|||
internal enum DataGridEditingRowLocation |
|||
{ |
|||
Bottom = 0, // The editing row is collapsed below the displayed rows
|
|||
Inline = 1, // The editing row is visible and displayed
|
|||
Top = 2 // The editing row is collapsed above the displayed rows
|
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Determines whether the inner cells' vertical/horizontal gridlines are shown or not.
|
|||
/// </summary>
|
|||
[Flags] |
|||
public enum DataGridGridLinesVisibility |
|||
{ |
|||
None = 0, |
|||
Horizontal = 1, |
|||
Vertical = 2, |
|||
All = 3, |
|||
} |
|||
|
|||
public enum DataGridEditingUnit |
|||
{ |
|||
Cell = 0, |
|||
Row = 1, |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Determines whether the row/column headers are shown or not.
|
|||
/// </summary>
|
|||
[Flags] |
|||
public enum DataGridHeadersVisibility |
|||
{ |
|||
/// <summary>
|
|||
/// Show Row, Column, and Corner Headers
|
|||
/// </summary>
|
|||
All = Row | Column, |
|||
|
|||
/// <summary>
|
|||
/// Show only Column Headers with top-right corner Header
|
|||
/// </summary>
|
|||
Column = 0x01, |
|||
|
|||
/// <summary>
|
|||
/// Show only Row Headers with bottom-left corner
|
|||
/// </summary>
|
|||
Row = 0x02, |
|||
|
|||
/// <summary>
|
|||
/// Don’t show any Headers
|
|||
/// </summary>
|
|||
None = 0x00 |
|||
} |
|||
|
|||
public enum DataGridRowDetailsVisibilityMode |
|||
{ |
|||
Collapsed = 2, // Show no details. Developer is in charge of toggling visibility.
|
|||
Visible = 1, // Show the details section for all rows.
|
|||
VisibleWhenSelected = 0 // Show the details section only for the selected row(s).
|
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Determines the type of action to take when selecting items
|
|||
/// </summary>
|
|||
internal enum DataGridSelectionAction |
|||
{ |
|||
AddCurrentToSelection, |
|||
None, |
|||
RemoveCurrentFromSelection, |
|||
SelectCurrent, |
|||
SelectFromAnchorToCurrent |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Determines the selection model
|
|||
/// </summary>
|
|||
public enum DataGridSelectionMode |
|||
{ |
|||
Extended = 0, |
|||
Single = 1 |
|||
} |
|||
} |
|||
@ -0,0 +1,190 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Globalization; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
|
|||
internal static class DataGridError |
|||
{ |
|||
public static class DataGrid |
|||
{ |
|||
public static InvalidOperationException CannotChangeItemsWhenLoadingRows() |
|||
{ |
|||
return new InvalidOperationException("Items cannot be added, removed or reset while rows are loading or unloading."); |
|||
} |
|||
|
|||
public static InvalidOperationException CannotChangeColumnCollectionWhileAdjustingDisplayIndexes() |
|||
{ |
|||
return new InvalidOperationException("Column collection cannot be changed while adjusting display indexes."); |
|||
} |
|||
|
|||
public static InvalidOperationException ColumnCannotBeCollapsed() |
|||
{ |
|||
return new InvalidOperationException("Column cannot be collapsed."); |
|||
} |
|||
|
|||
public static InvalidOperationException ColumnCannotBeReassignedToDifferentDataGrid() |
|||
{ |
|||
return new InvalidOperationException("Column already belongs to a DataGrid instance and cannot be reassigned."); |
|||
} |
|||
|
|||
public static ArgumentException ColumnNotInThisDataGrid() |
|||
{ |
|||
return new ArgumentException("Provided column does not belong to this DataGrid."); |
|||
} |
|||
|
|||
public static ArgumentException ItemIsNotContainedInTheItemsSource(string paramName) |
|||
{ |
|||
return new ArgumentException("The item is not contained in the ItemsSource.", paramName); |
|||
} |
|||
|
|||
public static InvalidOperationException NoCurrentRow() |
|||
{ |
|||
return new InvalidOperationException("There is no current row. Operation cannot be completed."); |
|||
} |
|||
|
|||
public static InvalidOperationException NoOwningGrid(Type type) |
|||
{ |
|||
return new InvalidOperationException(Format("There is no instance of DataGrid assigned to this {0}. Operation cannot be completed.", type.FullName)); |
|||
} |
|||
|
|||
public static InvalidOperationException UnderlyingPropertyIsReadOnly(string paramName) |
|||
{ |
|||
return new InvalidOperationException(Format("{0} cannot be set because the underlying property is read only.", paramName)); |
|||
} |
|||
|
|||
public static ArgumentException ValueCannotBeSetToInfinity(string paramName) |
|||
{ |
|||
return new ArgumentException(Format("{0} cannot be set to infinity.", paramName)); |
|||
} |
|||
|
|||
public static ArgumentException ValueCannotBeSetToNAN(string paramName) |
|||
{ |
|||
return new ArgumentException(Format("{0} cannot be set to double.NAN.", paramName)); |
|||
} |
|||
|
|||
public static ArgumentNullException ValueCannotBeSetToNull(string paramName, string valueName) |
|||
{ |
|||
return new ArgumentNullException(paramName, Format("{0} cannot be set to a null value.", valueName)); |
|||
} |
|||
|
|||
public static ArgumentException ValueIsNotAnInstanceOf(string paramName, Type type) |
|||
{ |
|||
return new ArgumentException(paramName, Format("The value is not an instance of {0}.", type.FullName)); |
|||
} |
|||
|
|||
public static ArgumentException ValueIsNotAnInstanceOfEitherOr(string paramName, Type type1, Type type2) |
|||
{ |
|||
return new ArgumentException(paramName, Format("The value is not an instance of {0} or {1}.", type1.FullName, type2.FullName)); |
|||
} |
|||
|
|||
public static ArgumentOutOfRangeException ValueMustBeBetween(string paramName, string valueName, object lowValue, bool lowInclusive, object highValue, bool highInclusive) |
|||
{ |
|||
string message = null; |
|||
|
|||
if (lowInclusive && highInclusive) |
|||
{ |
|||
message = "{0} must be greater than or equal to {1} and less than or equal to {2}."; |
|||
} |
|||
else if (lowInclusive && !highInclusive) |
|||
{ |
|||
message = "{0} must be greater than or equal to {1} and less than {2}."; |
|||
} |
|||
else if (!lowInclusive && highInclusive) |
|||
{ |
|||
message = "{0} must be greater than {1} and less than or equal to {2}."; |
|||
} |
|||
else |
|||
{ |
|||
message = "{0} must be greater than {1} and less than {2}."; |
|||
} |
|||
|
|||
return new ArgumentOutOfRangeException(paramName, Format(message, valueName, lowValue, highValue)); |
|||
} |
|||
|
|||
public static ArgumentOutOfRangeException ValueMustBeGreaterThanOrEqualTo(string paramName, string valueName, object value) |
|||
{ |
|||
return new ArgumentOutOfRangeException(paramName, Format("{0} must be greater than or equal to {1}.", valueName, value)); |
|||
} |
|||
|
|||
public static ArgumentOutOfRangeException ValueMustBeLessThanOrEqualTo(string paramName, string valueName, object value) |
|||
{ |
|||
return new ArgumentOutOfRangeException(paramName, Format("{0} must be less than or equal to {1}.", valueName, value)); |
|||
} |
|||
|
|||
public static ArgumentOutOfRangeException ValueMustBeLessThan(string paramName, string valueName, object value) |
|||
{ |
|||
return new ArgumentOutOfRangeException(paramName, Format("{0} must be less than {1}.", valueName, value)); |
|||
} |
|||
|
|||
} |
|||
|
|||
public static class DataGridColumnHeader |
|||
{ |
|||
public static NotSupportedException ContentDoesNotSupportUIElements() |
|||
{ |
|||
return new NotSupportedException("Content does not support Controls; use ContentTemplate instead."); |
|||
} |
|||
} |
|||
|
|||
public static class DataGridLength |
|||
{ |
|||
public static ArgumentException InvalidUnitType(string paramName) |
|||
{ |
|||
return new ArgumentException(Format("{0} is not a valid DataGridLengthUnitType.", paramName), paramName); |
|||
} |
|||
} |
|||
|
|||
public static class DataGridLengthConverter |
|||
{ |
|||
public static NotSupportedException CannotConvertFrom(string paramName) |
|||
{ |
|||
return new NotSupportedException(Format("DataGridLengthConverter cannot convert from {0}.", paramName)); |
|||
} |
|||
|
|||
public static NotSupportedException CannotConvertTo(string paramName) |
|||
{ |
|||
return new NotSupportedException(Format("Cannot convert from DataGridLength to {0}.", paramName)); |
|||
} |
|||
|
|||
public static NotSupportedException InvalidDataGridLength(string paramName) |
|||
{ |
|||
return new NotSupportedException(Format("Invalid DataGridLength.", paramName)); |
|||
} |
|||
} |
|||
|
|||
public static class DataGridRow |
|||
{ |
|||
public static InvalidOperationException InvalidRowIndexCannotCompleteOperation() |
|||
{ |
|||
return new InvalidOperationException("Invalid row index. Operation cannot be completed."); |
|||
} |
|||
} |
|||
|
|||
public static class DataGridSelectedItemsCollection |
|||
{ |
|||
public static InvalidOperationException CannotChangeSelectedItemsCollectionInSingleMode() |
|||
{ |
|||
return new InvalidOperationException("Can only change SelectedItems collection in Extended selection mode. Use SelectedItem property in Single selection mode."); |
|||
} |
|||
} |
|||
|
|||
public static class DataGridTemplateColumn |
|||
{ |
|||
public static TypeInitializationException MissingTemplateForType(Type type) |
|||
{ |
|||
return new TypeInitializationException(Format("Missing template. Cannot initialize {0}.", type.FullName), null); |
|||
} |
|||
} |
|||
|
|||
private static string Format(string formatString, params object[] args) |
|||
{ |
|||
return String.Format(CultureInfo.CurrentCulture, formatString, args); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,70 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Controls.Utils; |
|||
using Avalonia.Interactivity; |
|||
using Avalonia.Utilities; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class DataGridFillerColumn : DataGridColumn |
|||
{ |
|||
public DataGridFillerColumn(DataGrid owningGrid) |
|||
{ |
|||
IsReadOnly = true; |
|||
OwningGrid = owningGrid; |
|||
MinWidth = 0; |
|||
MaxWidth = int.MaxValue; |
|||
} |
|||
|
|||
internal double FillerWidth |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
// True if there is room for the filler column; otherwise, false
|
|||
internal bool IsActive |
|||
{ |
|||
get |
|||
{ |
|||
return FillerWidth > 0; |
|||
} |
|||
} |
|||
|
|||
// True if the FillerColumn's header cell is contained in the visual tree
|
|||
internal bool IsRepresented |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal override DataGridColumnHeader CreateHeader() |
|||
{ |
|||
DataGridColumnHeader headerCell = base.CreateHeader(); |
|||
if (headerCell != null) |
|||
{ |
|||
headerCell.IsEnabled = false; |
|||
} |
|||
return headerCell; |
|||
} |
|||
|
|||
protected override IControl GenerateElement(DataGridCell cell, object dataItem) |
|||
{ |
|||
return null; |
|||
} |
|||
|
|||
protected override IControl GenerateEditingElement(DataGridCell cell, object dataItem, out ICellEditBinding editBinding) |
|||
{ |
|||
editBinding = null; |
|||
return null; |
|||
} |
|||
|
|||
protected override object PrepareCellForEdit(IControl editingElement, RoutedEventArgs editingEventArgs) |
|||
{ |
|||
return null; |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,542 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Utilities; |
|||
using System; |
|||
using System.ComponentModel; |
|||
using System.Globalization; |
|||
using Avalonia.Controls.Utils; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
public enum DataGridLengthUnitType |
|||
{ |
|||
Auto = 0, |
|||
Pixel = 1, |
|||
SizeToCells = 2, |
|||
SizeToHeader = 3, |
|||
Star = 4 |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Represents the lengths of elements within the <see cref="T:Avalonia.Controls.DataGrid" /> control.
|
|||
/// </summary>
|
|||
[TypeConverter(typeof(DataGridLengthConverter))] |
|||
public struct DataGridLength : IEquatable<DataGridLength> |
|||
{ |
|||
|
|||
private double _desiredValue; // desired value storage
|
|||
private double _displayValue; // display value storage
|
|||
private double _unitValue; // unit value storage
|
|||
private DataGridLengthUnitType _unitType; // unit type storage
|
|||
|
|||
// static instances of value invariant DataGridLengths
|
|||
private static readonly DataGridLength _auto = new DataGridLength(DATAGRIDLENGTH_DefaultValue, DataGridLengthUnitType.Auto); |
|||
private static readonly DataGridLength _sizeToCells = new DataGridLength(DATAGRIDLENGTH_DefaultValue, DataGridLengthUnitType.SizeToCells); |
|||
private static readonly DataGridLength _sizeToHeader = new DataGridLength(DATAGRIDLENGTH_DefaultValue, DataGridLengthUnitType.SizeToHeader); |
|||
|
|||
// WPF uses 1.0 as the default value as well
|
|||
internal const double DATAGRIDLENGTH_DefaultValue = 1.0; |
|||
|
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.DataGridLength" /> class.
|
|||
/// </summary>
|
|||
/// <param name="value"></param>
|
|||
public DataGridLength(double value) |
|||
: this(value, DataGridLengthUnitType.Pixel) |
|||
{ |
|||
} |
|||
/// <summary>
|
|||
/// Initializes to a specified value and unit.
|
|||
/// </summary>
|
|||
/// <param name="value">The value to hold.</param>
|
|||
/// <param name="type">The unit of <c>value</c>.</param>
|
|||
/// <remarks>
|
|||
/// <c>value</c> is ignored unless <c>type</c> is
|
|||
/// <c>DataGridLengthUnitType.Pixel</c> or
|
|||
/// <c>DataGridLengthUnitType.Star</c>
|
|||
/// </remarks>
|
|||
/// <exception cref="ArgumentException">
|
|||
/// If <c>value</c> parameter is <c>double.NaN</c>
|
|||
/// or <c>value</c> parameter is <c>double.NegativeInfinity</c>
|
|||
/// or <c>value</c> parameter is <c>double.PositiveInfinity</c>.
|
|||
/// </exception>
|
|||
public DataGridLength(double value, DataGridLengthUnitType type) |
|||
: this(value, type, (type == DataGridLengthUnitType.Pixel ? value : Double.NaN), (type == DataGridLengthUnitType.Pixel ? value : Double.NaN)) |
|||
{ |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Initializes to a specified value and unit.
|
|||
/// </summary>
|
|||
/// <param name="value">The value to hold.</param>
|
|||
/// <param name="type">The unit of <c>value</c>.</param>
|
|||
/// <param name="desiredValue"></param>
|
|||
/// <param name="displayValue"></param>
|
|||
/// <remarks>
|
|||
/// <c>value</c> is ignored unless <c>type</c> is
|
|||
/// <c>DataGridLengthUnitType.Pixel</c> or
|
|||
/// <c>DataGridLengthUnitType.Star</c>
|
|||
/// </remarks>
|
|||
/// <exception cref="ArgumentException">
|
|||
/// If <c>value</c> parameter is <c>double.NaN</c>
|
|||
/// or <c>value</c> parameter is <c>double.NegativeInfinity</c>
|
|||
/// or <c>value</c> parameter is <c>double.PositiveInfinity</c>.
|
|||
/// </exception>
|
|||
public DataGridLength(double value, DataGridLengthUnitType type, double desiredValue, double displayValue) |
|||
{ |
|||
if (double.IsNaN(value)) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueCannotBeSetToNAN("value"); |
|||
} |
|||
if (double.IsInfinity(value)) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueCannotBeSetToInfinity("value"); |
|||
} |
|||
if (double.IsInfinity(desiredValue)) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueCannotBeSetToInfinity("desiredValue"); |
|||
} |
|||
if (double.IsInfinity(displayValue)) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueCannotBeSetToInfinity("displayValue"); |
|||
} |
|||
if (value < 0) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueMustBeGreaterThanOrEqualTo("value", "value", 0); |
|||
} |
|||
if (desiredValue < 0) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueMustBeGreaterThanOrEqualTo("desiredValue", "desiredValue", 0); |
|||
} |
|||
if (displayValue < 0) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueMustBeGreaterThanOrEqualTo("displayValue", "displayValue", 0); |
|||
} |
|||
|
|||
if (type != DataGridLengthUnitType.Auto && |
|||
type != DataGridLengthUnitType.SizeToCells && |
|||
type != DataGridLengthUnitType.SizeToHeader && |
|||
type != DataGridLengthUnitType.Star && |
|||
type != DataGridLengthUnitType.Pixel) |
|||
{ |
|||
throw DataGridError.DataGridLength.InvalidUnitType("type"); |
|||
} |
|||
|
|||
_desiredValue = desiredValue; |
|||
_displayValue = displayValue; |
|||
_unitValue = (type == DataGridLengthUnitType.Auto) ? DATAGRIDLENGTH_DefaultValue : value; |
|||
_unitType = type; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets a <see cref="T:Avalonia.Controls.DataGridLength" /> structure that represents the standard automatic sizing mode.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// A <see cref="T:Avalonia.Controls.DataGridLength" /> structure that represents the standard automatic sizing mode.
|
|||
/// </returns>
|
|||
public static DataGridLength Auto |
|||
{ |
|||
get |
|||
{ |
|||
return _auto; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the desired value of this instance.
|
|||
/// </summary>
|
|||
public double DesiredValue |
|||
{ |
|||
get |
|||
{ |
|||
return _desiredValue; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the display value of this instance.
|
|||
/// </summary>
|
|||
public double DisplayValue |
|||
{ |
|||
get |
|||
{ |
|||
return _displayValue; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns <c>true</c> if this DataGridLength instance holds
|
|||
/// an absolute (pixel) value.
|
|||
/// </summary>
|
|||
public bool IsAbsolute |
|||
{ |
|||
get |
|||
{ |
|||
return _unitType == DataGridLengthUnitType.Pixel; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns <c>true</c> if this DataGridLength instance is
|
|||
/// automatic (not specified).
|
|||
/// </summary>
|
|||
public bool IsAuto |
|||
{ |
|||
get |
|||
{ |
|||
return _unitType == DataGridLengthUnitType.Auto; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns <c>true</c> if this instance is to size to the cells of a column or row.
|
|||
/// </summary>
|
|||
public bool IsSizeToCells |
|||
{ |
|||
get |
|||
{ |
|||
return _unitType == DataGridLengthUnitType.SizeToCells; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns <c>true</c> if this instance is to size to the header of a column or row.
|
|||
/// </summary>
|
|||
public bool IsSizeToHeader |
|||
{ |
|||
get |
|||
{ |
|||
return _unitType == DataGridLengthUnitType.SizeToHeader; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns <c>true</c> if this DataGridLength instance holds a weighted proportion
|
|||
/// of available space.
|
|||
/// </summary>
|
|||
public bool IsStar |
|||
{ |
|||
get |
|||
{ |
|||
return _unitType == DataGridLengthUnitType.Star; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets a <see cref="T:Avalonia.Controls.DataGridLength" /> structure that represents the cell-based automatic sizing mode.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// A <see cref="T:Avalonia.Controls.DataGridLength" /> structure that represents the cell-based automatic sizing mode.
|
|||
/// </returns>
|
|||
public static DataGridLength SizeToCells |
|||
{ |
|||
get |
|||
{ |
|||
return _sizeToCells; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets a <see cref="T:Avalonia.Controls.DataGridLength" /> structure that represents the header-based automatic sizing mode.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// A <see cref="T:Avalonia.Controls.DataGridLength" /> structure that represents the header-based automatic sizing mode.
|
|||
/// </returns>
|
|||
public static DataGridLength SizeToHeader |
|||
{ |
|||
get |
|||
{ |
|||
return _sizeToHeader; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the <see cref="T:Avalonia.Controls.DataGridLengthUnitType" /> that represents the current sizing mode.
|
|||
/// </summary>
|
|||
public DataGridLengthUnitType UnitType |
|||
{ |
|||
get |
|||
{ |
|||
return _unitType; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the absolute value of the <see cref="T:Avalonia.Controls.DataGridLength" /> in pixels.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// The absolute value of the <see cref="T:Avalonia.Controls.DataGridLength" /> in pixels.
|
|||
/// </returns>
|
|||
public double Value |
|||
{ |
|||
get |
|||
{ |
|||
return _unitValue; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Overloaded operator, compares 2 DataGridLength's.
|
|||
/// </summary>
|
|||
/// <param name="gl1">first DataGridLength to compare.</param>
|
|||
/// <param name="gl2">second DataGridLength to compare.</param>
|
|||
/// <returns>true if specified DataGridLength have same value,
|
|||
/// unit type, desired value, and display value.</returns>
|
|||
public static bool operator ==(DataGridLength gl1, DataGridLength gl2) |
|||
{ |
|||
return (gl1.UnitType == gl2.UnitType |
|||
&& gl1.Value == gl2.Value |
|||
&& gl1.DesiredValue == gl2.DesiredValue |
|||
&& gl1.DisplayValue == gl2.DisplayValue); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Overloaded operator, compares 2 DataGridLength's.
|
|||
/// </summary>
|
|||
/// <param name="gl1">first DataGridLength to compare.</param>
|
|||
/// <param name="gl2">second DataGridLength to compare.</param>
|
|||
/// <returns>true if specified DataGridLength have either different value,
|
|||
/// unit type, desired value, or display value.</returns>
|
|||
public static bool operator !=(DataGridLength gl1, DataGridLength gl2) |
|||
{ |
|||
return (gl1.UnitType != gl2.UnitType |
|||
|| gl1.Value != gl2.Value |
|||
|| gl1.DesiredValue != gl2.DesiredValue |
|||
|| gl1.DisplayValue != gl2.DisplayValue); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Compares this instance of DataGridLength with another instance.
|
|||
/// </summary>
|
|||
/// <param name="other">DataGridLength length instance to compare.</param>
|
|||
/// <returns><c>true</c> if this DataGridLength instance has the same value
|
|||
/// and unit type as gridLength.</returns>
|
|||
public bool Equals(DataGridLength other) |
|||
{ |
|||
return (this == other); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Compares this instance of DataGridLength with another object.
|
|||
/// </summary>
|
|||
/// <param name="obj">Reference to an object for comparison.</param>
|
|||
/// <returns><c>true</c> if this DataGridLength instance has the same value
|
|||
/// and unit type as oCompare.</returns>
|
|||
public override bool Equals(object obj) |
|||
{ |
|||
DataGridLength? dataGridLength = obj as DataGridLength?; |
|||
if (dataGridLength.HasValue) |
|||
{ |
|||
return (this == dataGridLength); |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns a unique hash code for this DataGridLength
|
|||
/// </summary>
|
|||
/// <returns>hash code</returns>
|
|||
public override int GetHashCode() |
|||
{ |
|||
return ((int)_unitValue + (int)_unitType) + (int)_desiredValue + (int)_displayValue; |
|||
} |
|||
|
|||
} |
|||
/// <summary>
|
|||
/// DataGridLengthConverter - Converter class for converting instances of other types to and from DataGridLength instances.
|
|||
/// </summary>
|
|||
public class DataGridLengthConverter : TypeConverter |
|||
{ |
|||
private static string _starSuffix = "*"; |
|||
private static string[] _valueInvariantUnitStrings = { "auto", "sizetocells", "sizetoheader" }; |
|||
private static DataGridLength[] _valueInvariantDataGridLengths = { DataGridLength.Auto, DataGridLength.SizeToCells, DataGridLength.SizeToHeader }; |
|||
|
|||
/// <summary>
|
|||
/// Checks whether or not this class can convert from a given type.
|
|||
/// </summary>
|
|||
/// <param name="context">
|
|||
/// An ITypeDescriptorContext that provides a format context.
|
|||
/// </param>
|
|||
/// <param name="sourceType">The Type being queried for support.</param>
|
|||
/// <returns>
|
|||
/// <c>true</c> if this converter can convert from the provided type,
|
|||
/// <c>false</c> otherwise.
|
|||
/// </returns>
|
|||
public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) |
|||
{ |
|||
// We can only handle strings, integral and floating types
|
|||
TypeCode tc = Type.GetTypeCode(sourceType); |
|||
switch (tc) |
|||
{ |
|||
case TypeCode.String: |
|||
case TypeCode.Decimal: |
|||
case TypeCode.Single: |
|||
case TypeCode.Double: |
|||
case TypeCode.Int16: |
|||
case TypeCode.Int32: |
|||
case TypeCode.Int64: |
|||
case TypeCode.UInt16: |
|||
case TypeCode.UInt32: |
|||
case TypeCode.UInt64: |
|||
return true; |
|||
default: |
|||
return false; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Checks whether or not this class can convert to a given type.
|
|||
/// </summary>
|
|||
/// <param name="context">
|
|||
/// An ITypeDescriptorContext that provides a format context.
|
|||
/// </param>
|
|||
/// <param name="destinationType">The Type being queried for support.</param>
|
|||
/// <returns>
|
|||
/// <c>true</c> if this converter can convert to the provided type,
|
|||
/// <c>false</c> otherwise.
|
|||
/// </returns>
|
|||
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) |
|||
{ |
|||
return destinationType == typeof(string); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Attempts to convert to a DataGridLength from the given object.
|
|||
/// </summary>
|
|||
/// <param name="context">
|
|||
/// An ITypeDescriptorContext that provides a format context.
|
|||
/// </param>
|
|||
/// <param name="culture">
|
|||
/// The CultureInfo to use for the conversion.
|
|||
/// </param>
|
|||
/// <param name="value">The object to convert to a GridLength.</param>
|
|||
/// <returns>
|
|||
/// The GridLength instance which was constructed.
|
|||
/// </returns>
|
|||
/// <exception cref="NotSupportedException">
|
|||
/// A NotSupportedException is thrown if the example object is null.
|
|||
/// </exception>
|
|||
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) |
|||
{ |
|||
// GridLengthConverter in WPF throws a NotSupportedException on a null value as well.
|
|||
if (value == null) |
|||
{ |
|||
throw DataGridError.DataGridLengthConverter.CannotConvertFrom("(null)"); |
|||
} |
|||
|
|||
if (value is string stringValue) |
|||
{ |
|||
stringValue = stringValue.Trim(); |
|||
|
|||
if (stringValue.EndsWith(_starSuffix, StringComparison.Ordinal)) |
|||
{ |
|||
string stringValueWithoutSuffix = stringValue.Substring(0, stringValue.Length - _starSuffix.Length); |
|||
|
|||
double starWeight; |
|||
if (string.IsNullOrEmpty(stringValueWithoutSuffix)) |
|||
{ |
|||
starWeight = 1; |
|||
} |
|||
else |
|||
{ |
|||
starWeight = Convert.ToDouble(stringValueWithoutSuffix, culture ?? CultureInfo.CurrentCulture); |
|||
} |
|||
|
|||
return new DataGridLength(starWeight, DataGridLengthUnitType.Star); |
|||
} |
|||
|
|||
for (int index = 0; index < _valueInvariantUnitStrings.Length; index++) |
|||
{ |
|||
if (stringValue.Equals(_valueInvariantUnitStrings[index], StringComparison.OrdinalIgnoreCase)) |
|||
{ |
|||
return _valueInvariantDataGridLengths[index]; |
|||
} |
|||
} |
|||
} |
|||
|
|||
// Conversion from numeric type, WPF lets Convert exceptions bubble out here as well
|
|||
double doubleValue = Convert.ToDouble(value, culture ?? CultureInfo.CurrentCulture); |
|||
if (double.IsNaN(doubleValue)) |
|||
{ |
|||
// WPF returns Auto in this case as well
|
|||
return DataGridLength.Auto; |
|||
} |
|||
else |
|||
{ |
|||
return new DataGridLength(doubleValue); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Attempts to convert a DataGridLength instance to the given type.
|
|||
/// </summary>
|
|||
/// <param name="context">
|
|||
/// An ITypeDescriptorContext that provides a format context.
|
|||
/// </param>
|
|||
/// <param name="culture">
|
|||
/// The CultureInfo to use for the conversion.
|
|||
/// </param>
|
|||
/// <param name="value">The DataGridLength to convert.</param>
|
|||
/// <param name="destinationType">The type to which to convert the DataGridLength instance.</param>
|
|||
/// <returns>
|
|||
/// The object which was constructed.
|
|||
/// </returns>
|
|||
/// <exception cref="ArgumentNullException">
|
|||
/// An ArgumentNullException is thrown if the example object is null.
|
|||
/// </exception>
|
|||
/// <exception cref="NotSupportedException">
|
|||
/// A NotSupportedException is thrown if the object is not null and is not a DataGridLength,
|
|||
/// or if the destinationType isn't one of the valid destination types.
|
|||
/// </exception>
|
|||
///<SecurityNote>
|
|||
/// Critical: calls InstanceDescriptor ctor which LinkDemands
|
|||
/// PublicOK: can only make an InstanceDescriptor for DataGridLength, not an arbitrary class
|
|||
///</SecurityNote>
|
|||
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) |
|||
{ |
|||
if (destinationType == null) |
|||
{ |
|||
throw new ArgumentNullException("destinationType"); |
|||
} |
|||
if (destinationType != typeof(string)) |
|||
{ |
|||
throw DataGridError.DataGridLengthConverter.CannotConvertTo(destinationType.ToString()); |
|||
} |
|||
DataGridLength? dataGridLength = value as DataGridLength?; |
|||
if (!dataGridLength.HasValue) |
|||
{ |
|||
throw DataGridError.DataGridLengthConverter.InvalidDataGridLength("value"); |
|||
} |
|||
else |
|||
{ |
|||
// Convert dataGridLength to a string
|
|||
switch (dataGridLength.Value.UnitType) |
|||
{ |
|||
// for Auto print out "Auto". value is always "1.0"
|
|||
case DataGridLengthUnitType.Auto: |
|||
return "Auto"; |
|||
|
|||
case DataGridLengthUnitType.SizeToHeader: |
|||
return "SizeToHeader"; |
|||
|
|||
case DataGridLengthUnitType.SizeToCells: |
|||
return "SizeToCells"; |
|||
|
|||
// Star has one special case when value is "1.0".
|
|||
// in this case drop value part and print only "Star"
|
|||
case DataGridLengthUnitType.Star: |
|||
return ( |
|||
DoubleUtil.AreClose(1.0, dataGridLength.Value.Value) |
|||
? _starSuffix |
|||
: Convert.ToString(dataGridLength.Value.Value, culture ?? CultureInfo.CurrentCulture) + DataGridLengthConverter._starSuffix); |
|||
|
|||
default: |
|||
return (Convert.ToString(dataGridLength.Value.Value, culture ?? CultureInfo.CurrentCulture)); |
|||
} |
|||
} |
|||
} |
|||
} |
|||
} |
|||
File diff suppressed because it is too large
@ -0,0 +1,449 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Controls.Primitives; |
|||
using Avalonia.Input; |
|||
using Avalonia.Media; |
|||
using System; |
|||
using System.Diagnostics; |
|||
using System.Reactive.Linq; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
public class DataGridRowGroupHeader : TemplatedControl |
|||
{ |
|||
private const string DATAGRIDROWGROUPHEADER_expanderButton = "ExpanderButton"; |
|||
private const string DATAGRIDROWGROUPHEADER_indentSpacer = "IndentSpacer"; |
|||
private const string DATAGRIDROWGROUPHEADER_itemCountElement = "ItemCountElement"; |
|||
private const string DATAGRIDROWGROUPHEADER_propertyNameElement = "PropertyNameElement"; |
|||
|
|||
private bool _areIsCheckedHandlersSuspended; |
|||
private ToggleButton _expanderButton; |
|||
private DataGridRowHeader _headerElement; |
|||
private Control _indentSpacer; |
|||
private TextBlock _itemCountElement; |
|||
private TextBlock _propertyNameElement; |
|||
private Panel _rootElement; |
|||
private double _totalIndent; |
|||
|
|||
public static readonly StyledProperty<bool> IsItemCountVisibleProperty = |
|||
AvaloniaProperty.Register<DataGridRowGroupHeader, bool>(nameof(IsItemCountVisible)); |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets a value that indicates whether the item count is visible.
|
|||
/// </summary>
|
|||
public bool IsItemCountVisible |
|||
{ |
|||
get { return GetValue(IsItemCountVisibleProperty); } |
|||
set { SetValue(IsItemCountVisibleProperty, value); } |
|||
} |
|||
|
|||
public static readonly StyledProperty<string> PropertyNameProperty = |
|||
AvaloniaProperty.Register<DataGridRowGroupHeader, string>(nameof(PropertyName)); |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the name of the property that this <see cref="T:Avalonia.Controls.DataGrid" /> row is bound to.
|
|||
/// </summary>
|
|||
public string PropertyName |
|||
{ |
|||
get { return GetValue(PropertyNameProperty); } |
|||
set { SetValue(PropertyNameProperty, value); } |
|||
} |
|||
|
|||
public static readonly StyledProperty<bool> IsPropertyNameVisibleProperty = |
|||
AvaloniaProperty.Register<DataGridRowGroupHeader, bool>(nameof(IsPropertyNameVisible)); |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets a value that indicates whether the property name is visible.
|
|||
/// </summary>
|
|||
public bool IsPropertyNameVisible |
|||
{ |
|||
get { return GetValue(IsPropertyNameVisibleProperty); } |
|||
set { SetValue(IsPropertyNameVisibleProperty, value); } |
|||
} |
|||
|
|||
public static readonly StyledProperty<double> SublevelIndentProperty = |
|||
AvaloniaProperty.Register<DataGridRowGroupHeader, double>( |
|||
nameof(SublevelIndent), |
|||
defaultValue: DataGrid.DATAGRID_defaultRowGroupSublevelIndent, |
|||
validate: ValidateSublevelIndent); |
|||
|
|||
private static double ValidateSublevelIndent(DataGridRowGroupHeader header, double value) |
|||
{ |
|||
// We don't need to revert to the old value if our input is bad because we never read this property value
|
|||
if (double.IsNaN(value)) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueCannotBeSetToNAN(nameof(SublevelIndent)); |
|||
} |
|||
else if (double.IsInfinity(value)) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueCannotBeSetToInfinity(nameof(SublevelIndent)); |
|||
} |
|||
else if (value < 0) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueMustBeGreaterThanOrEqualTo(nameof(value), nameof(SublevelIndent), 0); |
|||
} |
|||
|
|||
return value; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets a value that indicates the amount that the
|
|||
/// children of the <see cref="T:Avalonia.Controls.RowGroupHeader" /> are indented.
|
|||
/// </summary>
|
|||
public double SublevelIndent |
|||
{ |
|||
get { return GetValue(SublevelIndentProperty); } |
|||
set { SetValue(SublevelIndentProperty, value); } |
|||
} |
|||
|
|||
private void OnSublevelIndentChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (OwningGrid != null) |
|||
{ |
|||
OwningGrid.OnSublevelIndentUpdated(this, (double)e.NewValue); |
|||
} |
|||
} |
|||
|
|||
static DataGridRowGroupHeader() |
|||
{ |
|||
SublevelIndentProperty.Changed.AddClassHandler<DataGridRowGroupHeader>(x => x.OnSublevelIndentChanged); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Constructs a DataGridRowGroupHeader
|
|||
/// </summary>
|
|||
public DataGridRowGroupHeader() |
|||
{ |
|||
//DefaultStyleKey = typeof(DataGridRowGroupHeader);
|
|||
AddHandler(InputElement.PointerPressedEvent, (s, e) => DataGridRowGroupHeader_PointerPressed(e), handledEventsToo: true); |
|||
} |
|||
|
|||
internal DataGridRowHeader HeaderCell |
|||
{ |
|||
get |
|||
{ |
|||
return _headerElement; |
|||
} |
|||
} |
|||
|
|||
private bool IsCurrent |
|||
{ |
|||
get |
|||
{ |
|||
Debug.Assert(OwningGrid != null); |
|||
return (RowGroupInfo.Slot == OwningGrid.CurrentSlot); |
|||
} |
|||
} |
|||
|
|||
private bool IsMouseOver |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal bool IsRecycled |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal int Level |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal DataGrid OwningGrid |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal DataGridRowGroupInfo RowGroupInfo |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal double TotalIndent |
|||
{ |
|||
set |
|||
{ |
|||
_totalIndent = value; |
|||
if (_indentSpacer != null) |
|||
{ |
|||
_indentSpacer.Width = _totalIndent; |
|||
} |
|||
} |
|||
} |
|||
|
|||
private IDisposable _expanderButtonSubscription; |
|||
|
|||
protected override void OnTemplateApplied(TemplateAppliedEventArgs e) |
|||
{ |
|||
_rootElement = e.NameScope.Find<Panel>(DataGridRow.DATAGRIDROW_elementRoot); |
|||
|
|||
_expanderButtonSubscription?.Dispose(); |
|||
_expanderButton = e.NameScope.Find<ToggleButton>(DATAGRIDROWGROUPHEADER_expanderButton); |
|||
if(_expanderButton != null) |
|||
{ |
|||
EnsureExpanderButtonIsChecked(); |
|||
_expanderButtonSubscription = |
|||
_expanderButton.GetObservable(ToggleButton.IsCheckedProperty) |
|||
.Skip(1) |
|||
.Subscribe(v => OnExpanderButtonIsCheckedChanged(v)); |
|||
} |
|||
|
|||
_headerElement = e.NameScope.Find<DataGridRowHeader>(DataGridRow.DATAGRIDROW_elementRowHeader); |
|||
if(_headerElement != null) |
|||
{ |
|||
_headerElement.Owner = this; |
|||
EnsureHeaderVisibility(); |
|||
} |
|||
|
|||
_indentSpacer = e.NameScope.Find<Control>(DATAGRIDROWGROUPHEADER_indentSpacer); |
|||
if(_indentSpacer != null) |
|||
{ |
|||
_indentSpacer.Width = _totalIndent; |
|||
} |
|||
|
|||
_itemCountElement = e.NameScope.Find<TextBlock>(DATAGRIDROWGROUPHEADER_itemCountElement); |
|||
_propertyNameElement = e.NameScope.Find<TextBlock>(DATAGRIDROWGROUPHEADER_propertyNameElement); |
|||
UpdateTitleElements(); |
|||
|
|||
base.OnTemplateApplied(e); |
|||
} |
|||
|
|||
internal void ApplyHeaderStatus() |
|||
{ |
|||
if (_headerElement != null && OwningGrid.AreRowHeadersVisible) |
|||
{ |
|||
_headerElement.ApplyOwnerStatus(); |
|||
} |
|||
} |
|||
|
|||
//TODO Implement
|
|||
internal void ApplyState(bool useTransitions) |
|||
{ |
|||
|
|||
} |
|||
|
|||
protected override Size ArrangeOverride(Size finalSize) |
|||
{ |
|||
if (OwningGrid == null) |
|||
{ |
|||
return base.ArrangeOverride(finalSize); |
|||
} |
|||
|
|||
Size size = base.ArrangeOverride(finalSize); |
|||
if (_rootElement != null) |
|||
{ |
|||
if (OwningGrid.AreRowGroupHeadersFrozen) |
|||
{ |
|||
foreach (Control child in _rootElement.Children) |
|||
{ |
|||
child.Clip = null; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
double frozenLeftEdge = 0; |
|||
foreach (Control child in _rootElement.Children) |
|||
{ |
|||
if (DataGridFrozenGrid.GetIsFrozen(child) && child.IsVisible) |
|||
{ |
|||
TranslateTransform transform = new TranslateTransform(); |
|||
// Automatic layout rounding doesn't apply to transforms so we need to Round this
|
|||
transform.X = Math.Round(OwningGrid.HorizontalOffset); |
|||
child.RenderTransform = transform; |
|||
|
|||
double childLeftEdge = child.Translate(this, new Point(child.Bounds.Width, 0)).X - transform.X; |
|||
frozenLeftEdge = Math.Max(frozenLeftEdge, childLeftEdge + OwningGrid.HorizontalOffset); |
|||
} |
|||
} |
|||
// Clip the non-frozen elements so they don't overlap the frozen ones
|
|||
foreach (Control child in _rootElement.Children) |
|||
{ |
|||
if (!DataGridFrozenGrid.GetIsFrozen(child)) |
|||
{ |
|||
EnsureChildClip(child, frozenLeftEdge); |
|||
} |
|||
} |
|||
} |
|||
} |
|||
return size; |
|||
} |
|||
|
|||
internal void ClearFrozenStates() |
|||
{ |
|||
if (_rootElement != null) |
|||
{ |
|||
foreach (Control child in _rootElement.Children) |
|||
{ |
|||
child.RenderTransform = null; |
|||
} |
|||
} |
|||
} |
|||
|
|||
//TODO TabStop
|
|||
private void DataGridRowGroupHeader_PointerPressed(PointerPressedEventArgs e) |
|||
{ |
|||
if (OwningGrid != null && e.MouseButton == MouseButton.Left) |
|||
{ |
|||
if (OwningGrid.IsDoubleClickRecordsClickOnCall(this) && !e.Handled) |
|||
{ |
|||
ToggleExpandCollapse(!RowGroupInfo.IsVisible, true); |
|||
e.Handled = true; |
|||
} |
|||
else |
|||
{ |
|||
//if (!e.Handled && OwningGrid.IsTabStop)
|
|||
if (!e.Handled) |
|||
{ |
|||
OwningGrid.Focus(); |
|||
} |
|||
e.Handled = OwningGrid.UpdateStateOnMouseLeftButtonDown(e, OwningGrid.CurrentColumnIndex, RowGroupInfo.Slot, allowEdit: false); |
|||
} |
|||
} |
|||
} |
|||
|
|||
private void EnsureChildClip(Visual child, double frozenLeftEdge) |
|||
{ |
|||
double childLeftEdge = child.Translate(this, new Point(0, 0)).X; |
|||
if (frozenLeftEdge > childLeftEdge) |
|||
{ |
|||
double xClip = Math.Round(frozenLeftEdge - childLeftEdge); |
|||
var rg = new RectangleGeometry(); |
|||
rg.Rect = |
|||
new Rect(xClip, 0, |
|||
Math.Max(0, child.Bounds.Width - xClip), |
|||
child.Bounds.Height); |
|||
child.Clip = rg; |
|||
} |
|||
else |
|||
{ |
|||
child.Clip = null; |
|||
} |
|||
} |
|||
|
|||
internal void EnsureExpanderButtonIsChecked() |
|||
{ |
|||
if (_expanderButton != null && RowGroupInfo != null && RowGroupInfo.CollectionViewGroup != null && |
|||
RowGroupInfo.CollectionViewGroup.ItemCount != 0) |
|||
{ |
|||
SetIsCheckedNoCallBack(RowGroupInfo.IsVisible); |
|||
} |
|||
} |
|||
|
|||
//TODO Styles
|
|||
//internal void EnsureHeaderStyleAndVisibility(Style previousStyle)
|
|||
internal void EnsureHeaderVisibility() |
|||
{ |
|||
if (_headerElement != null && OwningGrid != null) |
|||
{ |
|||
_headerElement.IsVisible = OwningGrid.AreColumnHeadersVisible; |
|||
} |
|||
} |
|||
|
|||
private void OnExpanderButtonIsCheckedChanged(bool? value) |
|||
{ |
|||
if(!_areIsCheckedHandlersSuspended) |
|||
{ |
|||
ToggleExpandCollapse(value ?? false, true); |
|||
} |
|||
} |
|||
|
|||
internal void LoadVisualsForDisplay() |
|||
{ |
|||
EnsureExpanderButtonIsChecked(); |
|||
EnsureHeaderVisibility(); |
|||
ApplyState(useTransitions: false); |
|||
ApplyHeaderStatus(); |
|||
} |
|||
|
|||
protected override void OnPointerEnter(PointerEventArgs e) |
|||
{ |
|||
if (IsEnabled) |
|||
{ |
|||
IsMouseOver = true; |
|||
ApplyState(useTransitions: true); |
|||
} |
|||
|
|||
base.OnPointerEnter(e); |
|||
} |
|||
|
|||
protected override void OnPointerLeave(PointerEventArgs e) |
|||
{ |
|||
if (IsEnabled) |
|||
{ |
|||
IsMouseOver = false; |
|||
ApplyState(useTransitions: true); |
|||
} |
|||
|
|||
base.OnPointerLeave(e); |
|||
} |
|||
|
|||
private void SetIsCheckedNoCallBack(bool value) |
|||
{ |
|||
if (_expanderButton != null && _expanderButton.IsChecked != value) |
|||
{ |
|||
_areIsCheckedHandlersSuspended = true; |
|||
try |
|||
{ |
|||
_expanderButton.IsChecked = value; |
|||
} |
|||
finally |
|||
{ |
|||
_areIsCheckedHandlersSuspended = false; |
|||
} |
|||
} |
|||
} |
|||
|
|||
internal void ToggleExpandCollapse(bool isVisible, bool setCurrent) |
|||
{ |
|||
if (RowGroupInfo.CollectionViewGroup.ItemCount != 0) |
|||
{ |
|||
if (OwningGrid == null) |
|||
{ |
|||
// Do these even if the OwningGrid is null in case it could improve the Designer experience for a standalone DataGridRowGroupHeader
|
|||
RowGroupInfo.IsVisible = isVisible; |
|||
} |
|||
else if(RowGroupInfo.IsVisible != isVisible) |
|||
{ |
|||
OwningGrid.OnRowGroupHeaderToggled(this, isVisible, setCurrent); |
|||
} |
|||
|
|||
EnsureExpanderButtonIsChecked(); |
|||
|
|||
ApplyState(true /*useTransitions*/); |
|||
} |
|||
} |
|||
|
|||
internal void UpdateTitleElements() |
|||
{ |
|||
if (_propertyNameElement != null) |
|||
{ |
|||
string txt; |
|||
if (string.IsNullOrWhiteSpace(PropertyName)) |
|||
txt = String.Empty; |
|||
else |
|||
txt = String.Format("{0}:", PropertyName); |
|||
_propertyNameElement.Text = txt; |
|||
} |
|||
if (_itemCountElement != null && RowGroupInfo != null && RowGroupInfo.CollectionViewGroup != null) |
|||
{ |
|||
string formatString; |
|||
if(RowGroupInfo.CollectionViewGroup.ItemCount == 1) |
|||
formatString = "({0} Item)"; |
|||
else |
|||
formatString = "({0} Items)"; |
|||
|
|||
_itemCountElement.Text = String.Format(formatString, RowGroupInfo.CollectionViewGroup.ItemCount); |
|||
} |
|||
} |
|||
|
|||
} |
|||
} |
|||
@ -0,0 +1,57 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Collections; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
|
|||
internal class DataGridRowGroupInfo |
|||
{ |
|||
public DataGridRowGroupInfo( |
|||
DataGridCollectionViewGroup collectionViewGroup, |
|||
bool isVisible, |
|||
int level, |
|||
int slot, |
|||
int lastSubItemSlot) |
|||
{ |
|||
CollectionViewGroup = collectionViewGroup; |
|||
IsVisible = isVisible; |
|||
Level = level; |
|||
Slot = slot; |
|||
LastSubItemSlot = lastSubItemSlot; |
|||
} |
|||
|
|||
public DataGridCollectionViewGroup CollectionViewGroup |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
public int LastSubItemSlot |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public int Level |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
public int Slot |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public bool IsVisible |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,192 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Input; |
|||
using Avalonia.Media; |
|||
using System.Diagnostics; |
|||
|
|||
namespace Avalonia.Controls.Primitives |
|||
{ |
|||
/// <summary>
|
|||
/// Represents an individual <see cref="T:Avalonia.Controls.DataGrid" /> row header.
|
|||
/// </summary>
|
|||
public class DataGridRowHeader : ContentControl |
|||
{ |
|||
private const string DATAGRIDROWHEADER_elementRootName = "Root"; |
|||
private const double DATAGRIDROWHEADER_separatorThickness = 1; |
|||
|
|||
private Control _rootElement; |
|||
|
|||
public static readonly StyledProperty<IBrush> SeparatorBrushProperty = |
|||
AvaloniaProperty.Register<DataGridRowHeader, IBrush>(nameof(SeparatorBrush)); |
|||
|
|||
public IBrush SeparatorBrush |
|||
{ |
|||
get { return GetValue(SeparatorBrushProperty); } |
|||
set { SetValue(SeparatorBrushProperty, value); } |
|||
} |
|||
|
|||
public static readonly StyledProperty<bool> AreSeparatorsVisibleProperty = |
|||
AvaloniaProperty.Register<DataGridRowHeader, bool>( |
|||
nameof(AreSeparatorsVisible)); |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets a value indicating whether the row header separator lines are visible.
|
|||
/// </summary>
|
|||
public bool AreSeparatorsVisible |
|||
{ |
|||
get { return GetValue(AreSeparatorsVisibleProperty); } |
|||
set { SetValue(AreSeparatorsVisibleProperty, value); } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.Primitives.DataGridRowHeader" /> class.
|
|||
/// </summary>
|
|||
public DataGridRowHeader() |
|||
{ |
|||
AddHandler(PointerPressedEvent, DataGridRowHeader_PointerPressed, handledEventsToo: true); |
|||
} |
|||
|
|||
internal Control Owner |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
private DataGridRow OwningRow => Owner as DataGridRow; |
|||
|
|||
private DataGridRowGroupHeader OwningRowGroupHeader => Owner as DataGridRowGroupHeader; |
|||
|
|||
private DataGrid OwningGrid |
|||
{ |
|||
get |
|||
{ |
|||
if (OwningRow != null) |
|||
{ |
|||
return OwningRow.OwningGrid; |
|||
} |
|||
else if (OwningRowGroupHeader != null) |
|||
{ |
|||
return OwningRowGroupHeader.OwningGrid; |
|||
} |
|||
return null; |
|||
} |
|||
} |
|||
|
|||
private int Slot |
|||
{ |
|||
get |
|||
{ |
|||
if (OwningRow != null) |
|||
{ |
|||
return OwningRow.Slot; |
|||
} |
|||
else if (OwningRowGroupHeader != null) |
|||
{ |
|||
return OwningRowGroupHeader.RowGroupInfo.Slot; |
|||
} |
|||
return -1; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Builds the visual tree for the row header when a new template is applied.
|
|||
/// </summary>
|
|||
protected override void OnTemplateApplied(TemplateAppliedEventArgs e) |
|||
{ |
|||
base.OnTemplateApplied(e); |
|||
|
|||
_rootElement = e.NameScope.Find<Control>(DATAGRIDROWHEADER_elementRootName); |
|||
if (_rootElement != null) |
|||
{ |
|||
ApplyOwnerStatus(); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Measures the children of a <see cref="T:Avalonia.Controls.Primitives.DataGridRowHeader" /> to prepare for arranging them during the <see cref="M:System.Windows.FrameworkElement.ArrangeOverride(System.Windows.Size)" /> pass.
|
|||
/// </summary>
|
|||
/// <param name="availableSize">
|
|||
/// The available size that this element can give to child elements. Indicates an upper limit that child elements should not exceed.
|
|||
/// </param>
|
|||
/// <returns>
|
|||
/// The size that the <see cref="T:Avalonia.Controls.Primitives.DataGridRowHeader" /> determines it needs during layout, based on its calculations of child object allocated sizes.
|
|||
/// </returns>
|
|||
protected override Size MeasureOverride(Size availableSize) |
|||
{ |
|||
if (OwningRow == null || OwningGrid == null) |
|||
{ |
|||
return base.MeasureOverride(availableSize); |
|||
} |
|||
double measureHeight = double.IsNaN(OwningGrid.RowHeight) ? availableSize.Height : OwningGrid.RowHeight; |
|||
double measureWidth = double.IsNaN(OwningGrid.RowHeaderWidth) ? availableSize.Width : OwningGrid.RowHeaderWidth; |
|||
Size measuredSize = base.MeasureOverride(new Size(measureWidth, measureHeight)); |
|||
|
|||
// Auto grow the row header or force it to a fixed width based on the DataGrid's setting
|
|||
if (!double.IsNaN(OwningGrid.RowHeaderWidth) || measuredSize.Width < OwningGrid.ActualRowHeaderWidth) |
|||
{ |
|||
return new Size(OwningGrid.ActualRowHeaderWidth, measuredSize.Height); |
|||
} |
|||
|
|||
return measuredSize; |
|||
} |
|||
|
|||
//TODO Implement
|
|||
internal void ApplyOwnerStatus() |
|||
{ |
|||
if (_rootElement != null && Owner != null && Owner.IsVisible) |
|||
{ |
|||
|
|||
} |
|||
} |
|||
|
|||
protected override void OnPointerEnter(PointerEventArgs e) |
|||
{ |
|||
if (OwningRow != null) |
|||
{ |
|||
OwningRow.IsMouseOver = true; |
|||
} |
|||
|
|||
base.OnPointerEnter(e); |
|||
} |
|||
protected override void OnPointerLeave(PointerEventArgs e) |
|||
{ |
|||
if (OwningRow != null) |
|||
{ |
|||
OwningRow.IsMouseOver = false; |
|||
} |
|||
|
|||
base.OnPointerLeave(e); |
|||
} |
|||
|
|||
//TODO TabStop
|
|||
private void DataGridRowHeader_PointerPressed(object sender, PointerPressedEventArgs e) |
|||
{ |
|||
if(e.MouseButton != MouseButton.Left) |
|||
{ |
|||
return; |
|||
} |
|||
|
|||
if (OwningGrid != null) |
|||
{ |
|||
if (!e.Handled) |
|||
//if (!e.Handled && OwningGrid.IsTabStop)
|
|||
{ |
|||
OwningGrid.Focus(); |
|||
} |
|||
if (OwningRow != null) |
|||
{ |
|||
Debug.Assert(sender is DataGridRowHeader); |
|||
Debug.Assert(sender == this); |
|||
e.Handled = OwningGrid.UpdateStateOnMouseLeftButtonDown(e, -1, Slot, false); |
|||
OwningGrid.UpdatedStateOnMouseLeftButtonDown = true; |
|||
} |
|||
} |
|||
} |
|||
|
|||
} |
|||
|
|||
} |
|||
|
|||
File diff suppressed because it is too large
@ -0,0 +1,470 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Diagnostics; |
|||
using System.Collections.Generic; |
|||
using System.Collections; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class DataGridSelectedItemsCollection : IList |
|||
{ |
|||
private List<object> _oldSelectedItemsCache; |
|||
private IndexToValueTable<bool> _oldSelectedSlotsTable; |
|||
private List<object> _selectedItemsCache; |
|||
private IndexToValueTable<bool> _selectedSlotsTable; |
|||
|
|||
public DataGridSelectedItemsCollection(DataGrid owningGrid) |
|||
{ |
|||
OwningGrid = owningGrid; |
|||
_oldSelectedItemsCache = new List<object>(); |
|||
_oldSelectedSlotsTable = new IndexToValueTable<bool>(); |
|||
_selectedItemsCache = new List<object>(); |
|||
_selectedSlotsTable = new IndexToValueTable<bool>(); |
|||
} |
|||
|
|||
public object this[int index] |
|||
{ |
|||
get |
|||
{ |
|||
if (index < 0 || index >= _selectedSlotsTable.IndexCount) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueMustBeBetween("index", "Index", 0, true, _selectedSlotsTable.IndexCount, false); |
|||
} |
|||
int slot = _selectedSlotsTable.GetNthIndex(index); |
|||
Debug.Assert(slot > -1); |
|||
return OwningGrid.DataConnection.GetDataItem(OwningGrid.RowIndexFromSlot(slot)); |
|||
} |
|||
set |
|||
{ |
|||
throw new NotSupportedException(); |
|||
} |
|||
} |
|||
|
|||
public bool IsFixedSize |
|||
{ |
|||
get |
|||
{ |
|||
return false; |
|||
} |
|||
} |
|||
|
|||
public bool IsReadOnly |
|||
{ |
|||
get |
|||
{ |
|||
return false; |
|||
} |
|||
} |
|||
|
|||
public int Add(object dataItem) |
|||
{ |
|||
if (OwningGrid.SelectionMode == DataGridSelectionMode.Single) |
|||
{ |
|||
throw DataGridError.DataGridSelectedItemsCollection.CannotChangeSelectedItemsCollectionInSingleMode(); |
|||
} |
|||
|
|||
int itemIndex = OwningGrid.DataConnection.IndexOf(dataItem); |
|||
if (itemIndex == -1) |
|||
{ |
|||
throw DataGridError.DataGrid.ItemIsNotContainedInTheItemsSource("dataItem"); |
|||
} |
|||
Debug.Assert(itemIndex >= 0); |
|||
|
|||
int slot = OwningGrid.SlotFromRowIndex(itemIndex); |
|||
if (_selectedSlotsTable.RangeCount == 0) |
|||
{ |
|||
OwningGrid.SelectedItem = dataItem; |
|||
} |
|||
else |
|||
{ |
|||
OwningGrid.SetRowSelection(slot, true /*isSelected*/, false /*setAnchorSlot*/); |
|||
} |
|||
return _selectedSlotsTable.IndexOf(slot); |
|||
} |
|||
|
|||
public void Clear() |
|||
{ |
|||
if (OwningGrid.SelectionMode == DataGridSelectionMode.Single) |
|||
{ |
|||
throw DataGridError.DataGridSelectedItemsCollection.CannotChangeSelectedItemsCollectionInSingleMode(); |
|||
} |
|||
|
|||
if (_selectedSlotsTable.RangeCount > 0) |
|||
{ |
|||
// Clearing the selection does not reset the potential current cell.
|
|||
if (!OwningGrid.CommitEdit(DataGridEditingUnit.Row, true /*exitEditing*/)) |
|||
{ |
|||
// Edited value couldn't be committed or aborted
|
|||
return; |
|||
} |
|||
OwningGrid.ClearRowSelection(true /*resetAnchorSlot*/); |
|||
} |
|||
} |
|||
|
|||
public bool Contains(object dataItem) |
|||
{ |
|||
int itemIndex = OwningGrid.DataConnection.IndexOf(dataItem); |
|||
if (itemIndex == -1) |
|||
{ |
|||
return false; |
|||
} |
|||
Debug.Assert(itemIndex >= 0); |
|||
|
|||
return ContainsSlot(OwningGrid.SlotFromRowIndex(itemIndex)); |
|||
} |
|||
|
|||
public int IndexOf(object dataItem) |
|||
{ |
|||
int itemIndex = OwningGrid.DataConnection.IndexOf(dataItem); |
|||
if (itemIndex == -1) |
|||
{ |
|||
return -1; |
|||
} |
|||
Debug.Assert(itemIndex >= 0); |
|||
int slot = OwningGrid.SlotFromRowIndex(itemIndex); |
|||
return _selectedSlotsTable.IndexOf(slot); |
|||
} |
|||
|
|||
public void Insert(int index, object dataItem) |
|||
{ |
|||
throw new NotSupportedException(); |
|||
} |
|||
|
|||
public void Remove(object dataItem) |
|||
{ |
|||
if (OwningGrid.SelectionMode == DataGridSelectionMode.Single) |
|||
{ |
|||
throw DataGridError.DataGridSelectedItemsCollection.CannotChangeSelectedItemsCollectionInSingleMode(); |
|||
} |
|||
|
|||
int itemIndex = OwningGrid.DataConnection.IndexOf(dataItem); |
|||
if (itemIndex == -1) |
|||
{ |
|||
return; |
|||
} |
|||
Debug.Assert(itemIndex >= 0); |
|||
|
|||
if (itemIndex == OwningGrid.CurrentSlot && |
|||
!OwningGrid.CommitEdit(DataGridEditingUnit.Row, true /*exitEditing*/)) |
|||
{ |
|||
// Edited value couldn't be committed or aborted
|
|||
return; |
|||
} |
|||
|
|||
OwningGrid.SetRowSelection(itemIndex, false /*isSelected*/, false /*setAnchorSlot*/); |
|||
} |
|||
|
|||
public void RemoveAt(int index) |
|||
{ |
|||
if (OwningGrid.SelectionMode == DataGridSelectionMode.Single) |
|||
{ |
|||
throw DataGridError.DataGridSelectedItemsCollection.CannotChangeSelectedItemsCollectionInSingleMode(); |
|||
} |
|||
|
|||
if (index < 0 || index >= _selectedSlotsTable.IndexCount) |
|||
{ |
|||
throw DataGridError.DataGrid.ValueMustBeBetween("index", "Index", 0, true, _selectedSlotsTable.IndexCount, false); |
|||
} |
|||
int rowIndex = _selectedSlotsTable.GetNthIndex(index); |
|||
Debug.Assert(rowIndex > -1); |
|||
|
|||
if (rowIndex == OwningGrid.CurrentSlot && |
|||
!OwningGrid.CommitEdit(DataGridEditingUnit.Row, true /*exitEditing*/)) |
|||
{ |
|||
// Edited value couldn't be committed or aborted
|
|||
return; |
|||
} |
|||
|
|||
OwningGrid.SetRowSelection(rowIndex, false /*isSelected*/, false /*setAnchorSlot*/); |
|||
} |
|||
|
|||
public int Count |
|||
{ |
|||
get |
|||
{ |
|||
return _selectedSlotsTable.IndexCount; |
|||
} |
|||
} |
|||
|
|||
public bool IsSynchronized |
|||
{ |
|||
get |
|||
{ |
|||
return false; |
|||
} |
|||
} |
|||
|
|||
public object SyncRoot |
|||
{ |
|||
get |
|||
{ |
|||
return this; |
|||
} |
|||
} |
|||
|
|||
public void CopyTo(System.Array array, int index) |
|||
{ |
|||
throw new NotImplementedException(); |
|||
} |
|||
|
|||
public IEnumerator GetEnumerator() |
|||
{ |
|||
Debug.Assert(OwningGrid != null); |
|||
Debug.Assert(OwningGrid.DataConnection != null); |
|||
Debug.Assert(_selectedSlotsTable != null); |
|||
|
|||
foreach (int slot in _selectedSlotsTable.GetIndexes()) |
|||
{ |
|||
int rowIndex = OwningGrid.RowIndexFromSlot(slot); |
|||
Debug.Assert(rowIndex > -1); |
|||
yield return OwningGrid.DataConnection.GetDataItem(rowIndex); |
|||
} |
|||
} |
|||
|
|||
internal DataGrid OwningGrid |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
internal List<object> SelectedItemsCache |
|||
{ |
|||
get |
|||
{ |
|||
return _selectedItemsCache; |
|||
} |
|||
set |
|||
{ |
|||
_selectedItemsCache = value; |
|||
UpdateIndexes(); |
|||
} |
|||
} |
|||
|
|||
internal void ClearRows() |
|||
{ |
|||
_selectedSlotsTable.Clear(); |
|||
_selectedItemsCache.Clear(); |
|||
} |
|||
|
|||
internal bool ContainsSlot(int slot) |
|||
{ |
|||
return _selectedSlotsTable.Contains(slot); |
|||
} |
|||
|
|||
internal bool ContainsAll(int startSlot, int endSlot) |
|||
{ |
|||
int itemSlot = OwningGrid.RowGroupHeadersTable.GetNextGap(startSlot - 1); |
|||
while (itemSlot <= endSlot) |
|||
{ |
|||
// Skip over the RowGroupHeaderSlots
|
|||
int nextRowGroupHeaderSlot = OwningGrid.RowGroupHeadersTable.GetNextIndex(itemSlot); |
|||
int lastItemSlot = nextRowGroupHeaderSlot == -1 ? endSlot : Math.Min(endSlot, nextRowGroupHeaderSlot - 1); |
|||
if (!_selectedSlotsTable.ContainsAll(itemSlot, lastItemSlot)) |
|||
{ |
|||
return false; |
|||
} |
|||
itemSlot = OwningGrid.RowGroupHeadersTable.GetNextGap(lastItemSlot); |
|||
} |
|||
return true; |
|||
} |
|||
|
|||
// Called when an item is deleted from the ItemsSource as opposed to just being unselected
|
|||
internal void Delete(int slot, object item) |
|||
{ |
|||
if (_oldSelectedSlotsTable.Contains(slot)) |
|||
{ |
|||
OwningGrid.SelectionHasChanged = true; |
|||
} |
|||
DeleteSlot(slot); |
|||
_selectedItemsCache.Remove(item); |
|||
} |
|||
|
|||
internal void DeleteSlot(int slot) |
|||
{ |
|||
_selectedSlotsTable.RemoveIndex(slot); |
|||
_oldSelectedSlotsTable.RemoveIndex(slot); |
|||
} |
|||
|
|||
// Returns the inclusive index count between lowerBound and upperBound of all indexes with the given value
|
|||
internal int GetIndexCount(int lowerBound, int upperBound) |
|||
{ |
|||
return _selectedSlotsTable.GetIndexCount(lowerBound, upperBound, true); |
|||
} |
|||
|
|||
internal IEnumerable<int> GetIndexes() |
|||
{ |
|||
return _selectedSlotsTable.GetIndexes(); |
|||
} |
|||
|
|||
internal IEnumerable<int> GetSlots(int startSlot) |
|||
{ |
|||
return _selectedSlotsTable.GetIndexes(startSlot); |
|||
} |
|||
|
|||
internal SelectionChangedEventArgs GetSelectionChangedEventArgs() |
|||
{ |
|||
List<object> addedSelectedItems = new List<object>(); |
|||
List<object> removedSelectedItems = new List<object>(); |
|||
|
|||
// Compare the old selected indexes with the current selection to determine which items
|
|||
// have been added and removed since the last time this method was called
|
|||
foreach (int newSlot in _selectedSlotsTable.GetIndexes()) |
|||
{ |
|||
object newItem = OwningGrid.DataConnection.GetDataItem(OwningGrid.RowIndexFromSlot(newSlot)); |
|||
if (_oldSelectedSlotsTable.Contains(newSlot)) |
|||
{ |
|||
_oldSelectedSlotsTable.RemoveValue(newSlot); |
|||
_oldSelectedItemsCache.Remove(newItem); |
|||
} |
|||
else |
|||
{ |
|||
addedSelectedItems.Add(newItem); |
|||
} |
|||
} |
|||
foreach (object oldItem in _oldSelectedItemsCache) |
|||
{ |
|||
removedSelectedItems.Add(oldItem); |
|||
} |
|||
|
|||
// The current selection becomes the old selection
|
|||
_oldSelectedSlotsTable = _selectedSlotsTable.Copy(); |
|||
_oldSelectedItemsCache = new List<object>(_selectedItemsCache); |
|||
|
|||
return |
|||
new SelectionChangedEventArgs(DataGrid.SelectionChangedEvent, removedSelectedItems, addedSelectedItems) |
|||
{ |
|||
Source = OwningGrid |
|||
}; |
|||
} |
|||
|
|||
internal void InsertIndex(int slot) |
|||
{ |
|||
_selectedSlotsTable.InsertIndex(slot); |
|||
_oldSelectedSlotsTable.InsertIndex(slot); |
|||
|
|||
// It's possible that we're inserting an item that was just removed. If that's the case,
|
|||
// and the re-inserted item used to be selected, we want to update the _oldSelectedSlotsTable
|
|||
// to include the item's new index within the collection.
|
|||
int rowIndex = OwningGrid.RowIndexFromSlot(slot); |
|||
if (rowIndex != -1) |
|||
{ |
|||
object insertedItem = OwningGrid.DataConnection.GetDataItem(rowIndex); |
|||
if (insertedItem != null && _oldSelectedItemsCache.Contains(insertedItem)) |
|||
{ |
|||
_oldSelectedSlotsTable.AddValue(slot, true); |
|||
} |
|||
} |
|||
} |
|||
|
|||
internal void SelectSlot(int slot, bool select) |
|||
{ |
|||
if (OwningGrid.RowGroupHeadersTable.Contains(slot)) |
|||
{ |
|||
return; |
|||
} |
|||
if (select) |
|||
{ |
|||
if (!_selectedSlotsTable.Contains(slot)) |
|||
{ |
|||
_selectedItemsCache.Add(OwningGrid.DataConnection.GetDataItem(OwningGrid.RowIndexFromSlot(slot))); |
|||
} |
|||
_selectedSlotsTable.AddValue(slot, true); |
|||
} |
|||
else |
|||
{ |
|||
if (_selectedSlotsTable.Contains(slot)) |
|||
{ |
|||
_selectedItemsCache.Remove(OwningGrid.DataConnection.GetDataItem(OwningGrid.RowIndexFromSlot(slot))); |
|||
} |
|||
_selectedSlotsTable.RemoveValue(slot); |
|||
} |
|||
} |
|||
|
|||
internal void SelectSlots(int startSlot, int endSlot, bool select) |
|||
{ |
|||
int itemSlot = OwningGrid.RowGroupHeadersTable.GetNextGap(startSlot - 1); |
|||
int endItemSlot = OwningGrid.RowGroupHeadersTable.GetPreviousGap(endSlot + 1); |
|||
if (select) |
|||
{ |
|||
while (itemSlot <= endItemSlot) |
|||
{ |
|||
// Add the newly selected item slots by skipping over the RowGroupHeaderSlots
|
|||
int nextRowGroupHeaderSlot = OwningGrid.RowGroupHeadersTable.GetNextIndex(itemSlot); |
|||
int lastItemSlot = nextRowGroupHeaderSlot == -1 ? endItemSlot : Math.Min(endItemSlot, nextRowGroupHeaderSlot - 1); |
|||
for (int slot = itemSlot; slot <= lastItemSlot; slot++) |
|||
{ |
|||
if (!_selectedSlotsTable.Contains(slot)) |
|||
{ |
|||
_selectedItemsCache.Add(OwningGrid.DataConnection.GetDataItem(OwningGrid.RowIndexFromSlot(slot))); |
|||
} |
|||
} |
|||
_selectedSlotsTable.AddValues(itemSlot, lastItemSlot - itemSlot + 1, true); |
|||
itemSlot = OwningGrid.RowGroupHeadersTable.GetNextGap(lastItemSlot); |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
while (itemSlot <= endItemSlot) |
|||
{ |
|||
// Remove the unselected item slots by skipping over the RowGroupHeaderSlots
|
|||
int nextRowGroupHeaderSlot = OwningGrid.RowGroupHeadersTable.GetNextIndex(itemSlot); |
|||
int lastItemSlot = nextRowGroupHeaderSlot == -1 ? endItemSlot : Math.Min(endItemSlot, nextRowGroupHeaderSlot - 1); |
|||
for (int slot = itemSlot; slot <= lastItemSlot; slot++) |
|||
{ |
|||
if (_selectedSlotsTable.Contains(slot)) |
|||
{ |
|||
_selectedItemsCache.Remove(OwningGrid.DataConnection.GetDataItem(OwningGrid.RowIndexFromSlot(slot))); |
|||
} |
|||
} |
|||
_selectedSlotsTable.RemoveValues(itemSlot, lastItemSlot - itemSlot + 1); |
|||
itemSlot = OwningGrid.RowGroupHeadersTable.GetNextGap(lastItemSlot); |
|||
} |
|||
} |
|||
} |
|||
|
|||
internal void UpdateIndexes() |
|||
{ |
|||
_oldSelectedSlotsTable.Clear(); |
|||
_selectedSlotsTable.Clear(); |
|||
|
|||
if (OwningGrid.DataConnection.DataSource == null) |
|||
{ |
|||
if (SelectedItemsCache.Count > 0) |
|||
{ |
|||
OwningGrid.SelectionHasChanged = true; |
|||
SelectedItemsCache.Clear(); |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
List<object> tempSelectedItemsCache = new List<object>(); |
|||
foreach (object item in _selectedItemsCache) |
|||
{ |
|||
int index = OwningGrid.DataConnection.IndexOf(item); |
|||
if (index != -1) |
|||
{ |
|||
tempSelectedItemsCache.Add(item); |
|||
_selectedSlotsTable.AddValue(OwningGrid.SlotFromRowIndex(index), true); |
|||
} |
|||
} |
|||
foreach (object item in _oldSelectedItemsCache) |
|||
{ |
|||
int index = OwningGrid.DataConnection.IndexOf(item); |
|||
if (index == -1) |
|||
{ |
|||
OwningGrid.SelectionHasChanged = true; |
|||
} |
|||
else |
|||
{ |
|||
_oldSelectedSlotsTable.AddValue(OwningGrid.SlotFromRowIndex(index), true); |
|||
} |
|||
} |
|||
_selectedItemsCache = tempSelectedItemsCache; |
|||
} |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,79 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Controls.Templates; |
|||
using Avalonia.Controls.Utils; |
|||
using Avalonia.Input; |
|||
using Avalonia.Interactivity; |
|||
using Avalonia.Media; |
|||
using Avalonia.Utilities; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
public class DataGridTemplateColumn : DataGridColumn |
|||
{ |
|||
IDataTemplate _cellTemplate; |
|||
|
|||
public static readonly DirectProperty<DataGridTemplateColumn, IDataTemplate> CellTemplateProperty = |
|||
AvaloniaProperty.RegisterDirect<DataGridTemplateColumn, IDataTemplate>( |
|||
nameof(CellTemplate), |
|||
o => o.CellTemplate, |
|||
(o, v) => o.CellTemplate = v); |
|||
|
|||
public IDataTemplate CellTemplate |
|||
{ |
|||
get { return _cellTemplate; } |
|||
set { SetAndRaise(CellTemplateProperty, ref _cellTemplate, value); } |
|||
} |
|||
|
|||
private void OnCellTemplateChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
var oldValue = (IDataTemplate)e.OldValue; |
|||
var value = (IDataTemplate)e.NewValue; |
|||
} |
|||
|
|||
public DataGridTemplateColumn() |
|||
{ |
|||
IsReadOnly = true; |
|||
} |
|||
|
|||
protected override IControl GenerateElement(DataGridCell cell, object dataItem) |
|||
{ |
|||
if(CellTemplate != null) |
|||
{ |
|||
return CellTemplate.Build(dataItem); |
|||
} |
|||
if (Design.IsDesignMode) |
|||
{ |
|||
return null; |
|||
} |
|||
else |
|||
{ |
|||
throw DataGridError.DataGridTemplateColumn.MissingTemplateForType(typeof(DataGridTemplateColumn)); |
|||
} |
|||
} |
|||
|
|||
protected override IControl GenerateEditingElement(DataGridCell cell, object dataItem, out ICellEditBinding binding) |
|||
{ |
|||
binding = null; |
|||
return GenerateElement(cell, dataItem); |
|||
} |
|||
|
|||
protected override object PrepareCellForEdit(IControl editingElement, RoutedEventArgs editingEventArgs) |
|||
{ |
|||
return null; |
|||
} |
|||
|
|||
protected internal override void RefreshCellContent(IControl element, string propertyName) |
|||
{ |
|||
if(propertyName == nameof(CellTemplate) && element.Parent is DataGridCell cell) |
|||
{ |
|||
cell.Content = GenerateElement(cell, cell.DataContext); |
|||
} |
|||
|
|||
base.RefreshCellContent(element, propertyName); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,357 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Input; |
|||
using Avalonia.Interactivity; |
|||
using Avalonia.Media; |
|||
using System; |
|||
using System.ComponentModel; |
|||
using Avalonia.Layout; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// Represents a <see cref="T:Avalonia.Controls.DataGrid" /> column that hosts textual content in its cells.
|
|||
/// </summary>
|
|||
public class DataGridTextColumn : DataGridBoundColumn |
|||
{ |
|||
|
|||
private double? _fontSize; |
|||
private FontStyle? _fontStyle; |
|||
private FontWeight? _fontWeight; |
|||
private IBrush _foreground; |
|||
|
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.DataGridTextColumn" /> class.
|
|||
/// </summary>
|
|||
public DataGridTextColumn() |
|||
{ |
|||
BindingTarget = TextBox.TextProperty; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Identifies the FontFamily dependency property.
|
|||
/// </summary>
|
|||
public static readonly StyledProperty<string> FontFamilyProperty = |
|||
AvaloniaProperty.Register<DataGridTextColumn, string>(nameof(FontFamily)); |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the font name.
|
|||
/// </summary>
|
|||
public string FontFamily |
|||
{ |
|||
get { return GetValue(FontFamilyProperty); } |
|||
set { SetValue(FontFamilyProperty, value); } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the font size.
|
|||
/// </summary>
|
|||
// Use DefaultValue here so undo in the Designer will set this to NaN
|
|||
[DefaultValue(double.NaN)] |
|||
public double FontSize |
|||
{ |
|||
get |
|||
{ |
|||
return _fontSize ?? Double.NaN; |
|||
} |
|||
set |
|||
{ |
|||
if (_fontSize != value) |
|||
{ |
|||
_fontSize = value; |
|||
NotifyPropertyChanged(nameof(FontSize)); |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the font style.
|
|||
/// </summary>
|
|||
public FontStyle FontStyle |
|||
{ |
|||
get |
|||
{ |
|||
return _fontStyle ?? FontStyle.Normal; |
|||
} |
|||
set |
|||
{ |
|||
if (_fontStyle != value) |
|||
{ |
|||
_fontStyle = value; |
|||
NotifyPropertyChanged(nameof(FontStyle)); |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the font weight or thickness.
|
|||
/// </summary>
|
|||
public FontWeight FontWeight |
|||
{ |
|||
get |
|||
{ |
|||
return _fontWeight ?? FontWeight.Normal; |
|||
} |
|||
set |
|||
{ |
|||
if (_fontWeight != value) |
|||
{ |
|||
_fontWeight = value; |
|||
NotifyPropertyChanged(nameof(FontWeight)); |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets a brush that describes the foreground of the column cells.
|
|||
/// </summary>
|
|||
public IBrush Foreground |
|||
{ |
|||
get |
|||
{ |
|||
return _foreground; |
|||
} |
|||
set |
|||
{ |
|||
if (_foreground != value) |
|||
{ |
|||
_foreground = value; |
|||
NotifyPropertyChanged(nameof(Foreground)); |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Causes the column cell being edited to revert to the specified value.
|
|||
/// </summary>
|
|||
/// <param name="editingElement">The element that the column displays for a cell in editing mode.</param>
|
|||
/// <param name="uneditedValue">The previous, unedited value in the cell being edited.</param>
|
|||
protected override void CancelCellEdit(IControl editingElement, object uneditedValue) |
|||
{ |
|||
if (editingElement is TextBox textBox) |
|||
{ |
|||
string uneditedString = uneditedValue as string; |
|||
textBox.Text = uneditedString ?? string.Empty; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets a <see cref="T:Avalonia.Controls.TextBox" /> control that is bound to the column's <see cref="P:Avalonia.Controls.DataGridBoundColumn.Binding" /> property value.
|
|||
/// </summary>
|
|||
/// <param name="cell">The cell that will contain the generated element.</param>
|
|||
/// <param name="dataItem">The data item represented by the row that contains the intended cell.</param>
|
|||
/// <returns>A new <see cref="T:Avalonia.Controls.TextBox" /> control that is bound to the column's <see cref="P:Avalonia.Controls.DataGridBoundColumn.Binding" /> property value.</returns>
|
|||
protected override IControl GenerateEditingElementDirect(DataGridCell cell, object dataItem) |
|||
{ |
|||
var textBox = new TextBox |
|||
{ |
|||
VerticalAlignment = VerticalAlignment.Stretch, |
|||
Background = new SolidColorBrush(Colors.Transparent) |
|||
}; |
|||
|
|||
if (IsSet(FontFamilyProperty)) |
|||
{ |
|||
textBox.FontFamily = FontFamily; |
|||
} |
|||
if (_fontSize.HasValue) |
|||
{ |
|||
textBox.FontSize = _fontSize.Value; |
|||
} |
|||
if (_fontStyle.HasValue) |
|||
{ |
|||
textBox.FontStyle = _fontStyle.Value; |
|||
} |
|||
if (_fontWeight.HasValue) |
|||
{ |
|||
textBox.FontWeight = _fontWeight.Value; |
|||
} |
|||
if (_foreground != null) |
|||
{ |
|||
textBox.Foreground = _foreground; |
|||
} |
|||
|
|||
return textBox; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets a read-only <see cref="T:Avalonia.Controls.TextBlock" /> element that is bound to the column's <see cref="P:Avalonia.Controls.DataGridBoundColumn.Binding" /> property value.
|
|||
/// </summary>
|
|||
/// <param name="cell">The cell that will contain the generated element.</param>
|
|||
/// <param name="dataItem">The data item represented by the row that contains the intended cell.</param>
|
|||
/// <returns>A new, read-only <see cref="T:Avalonia.Controls.TextBlock" /> element that is bound to the column's <see cref="P:Avalonia.Controls.DataGridBoundColumn.Binding" /> property value.</returns>
|
|||
protected override IControl GenerateElement(DataGridCell cell, object dataItem) |
|||
{ |
|||
TextBlock textBlockElement = new TextBlock |
|||
{ |
|||
Margin = new Thickness(4), |
|||
VerticalAlignment = VerticalAlignment.Center |
|||
}; |
|||
|
|||
if (IsSet(FontFamilyProperty)) |
|||
{ |
|||
textBlockElement.FontFamily = FontFamily; |
|||
} |
|||
if (_fontSize.HasValue) |
|||
{ |
|||
textBlockElement.FontSize = _fontSize.Value; |
|||
} |
|||
if (_fontStyle.HasValue) |
|||
{ |
|||
textBlockElement.FontStyle = _fontStyle.Value; |
|||
} |
|||
if (_fontWeight.HasValue) |
|||
{ |
|||
textBlockElement.FontWeight = _fontWeight.Value; |
|||
} |
|||
if (_foreground != null) |
|||
{ |
|||
textBlockElement.Foreground = _foreground; |
|||
} |
|||
if (Binding != null) |
|||
{ |
|||
textBlockElement.Bind(TextBlock.TextProperty, Binding); |
|||
} |
|||
return textBlockElement; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the cell in the column enters editing mode.
|
|||
/// </summary>
|
|||
/// <param name="editingElement">The element that the column displays for a cell in editing mode.</param>
|
|||
/// <param name="editingEventArgs">Information about the user gesture that is causing a cell to enter editing mode.</param>
|
|||
/// <returns>The unedited value. </returns>
|
|||
protected override object PrepareCellForEdit(IControl editingElement, RoutedEventArgs editingEventArgs) |
|||
{ |
|||
if (editingElement is TextBox textBox) |
|||
{ |
|||
string uneditedText = textBox.Text ?? String.Empty; |
|||
int len = uneditedText.Length; |
|||
if (editingEventArgs is KeyEventArgs keyEventArgs && keyEventArgs.Key == Key.F2) |
|||
{ |
|||
// Put caret at the end of the text
|
|||
textBox.SelectionStart = len; |
|||
textBox.SelectionEnd = len; |
|||
} |
|||
else |
|||
{ |
|||
// Select all text
|
|||
textBox.SelectionStart = 0; |
|||
textBox.SelectionEnd = len; |
|||
textBox.CaretIndex = len; |
|||
} |
|||
|
|||
return uneditedText; |
|||
} |
|||
return string.Empty; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called by the DataGrid control when this column asks for its elements to be
|
|||
/// updated, because a property changed.
|
|||
/// </summary>
|
|||
protected internal override void RefreshCellContent(IControl element, string propertyName) |
|||
{ |
|||
if (element == null) |
|||
{ |
|||
throw new ArgumentNullException("element"); |
|||
} |
|||
|
|||
if(element is TextBox textBox) |
|||
{ |
|||
if (propertyName == nameof(FontFamily)) |
|||
{ |
|||
textBox.FontFamily = FontFamily; |
|||
} |
|||
else if (propertyName == nameof(FontSize)) |
|||
{ |
|||
SetTextFontSize(textBox, TextBox.FontSizeProperty); |
|||
} |
|||
else if (propertyName == nameof(FontStyle)) |
|||
{ |
|||
textBox.FontStyle = FontStyle; |
|||
} |
|||
else if (propertyName == nameof(FontWeight)) |
|||
{ |
|||
textBox.FontWeight = FontWeight; |
|||
} |
|||
else if (propertyName == nameof(Foreground)) |
|||
{ |
|||
textBox.Foreground = Foreground; |
|||
} |
|||
else |
|||
{ |
|||
if (FontFamily != null) |
|||
{ |
|||
textBox.FontFamily = FontFamily; |
|||
} |
|||
SetTextFontSize(textBox, TextBox.FontSizeProperty); |
|||
textBox.FontStyle = FontStyle; |
|||
textBox.FontWeight = FontWeight; |
|||
if (Foreground != null) |
|||
{ |
|||
textBox.Foreground = Foreground; |
|||
} |
|||
} |
|||
|
|||
} |
|||
else if (element is TextBlock textBlock) |
|||
{ |
|||
if (propertyName == nameof(FontFamily)) |
|||
{ |
|||
textBlock.FontFamily = FontFamily; |
|||
} |
|||
else if (propertyName == nameof(FontSize)) |
|||
{ |
|||
SetTextFontSize(textBlock, TextBlock.FontSizeProperty); |
|||
} |
|||
else if (propertyName == nameof(FontStyle)) |
|||
{ |
|||
textBlock.FontStyle = FontStyle; |
|||
} |
|||
else if (propertyName == nameof(FontWeight)) |
|||
{ |
|||
textBlock.FontWeight = FontWeight; |
|||
} |
|||
else if (propertyName == nameof(Foreground)) |
|||
{ |
|||
textBlock.Foreground = Foreground; |
|||
} |
|||
else |
|||
{ |
|||
if (FontFamily != null) |
|||
{ |
|||
textBlock.FontFamily = FontFamily; |
|||
} |
|||
SetTextFontSize(textBlock, TextBlock.FontSizeProperty); |
|||
textBlock.FontStyle = FontStyle; |
|||
textBlock.FontWeight = FontWeight; |
|||
if (Foreground != null) |
|||
{ |
|||
textBlock.Foreground = Foreground; |
|||
} |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
throw DataGridError.DataGrid.ValueIsNotAnInstanceOfEitherOr("element", typeof(TextBox), typeof(TextBlock)); |
|||
} |
|||
} |
|||
|
|||
private void SetTextFontSize(AvaloniaObject textElement, AvaloniaProperty fontSizeProperty) |
|||
{ |
|||
double newFontSize = FontSize; |
|||
if (double.IsNaN(newFontSize)) |
|||
{ |
|||
textElement.ClearValue(fontSizeProperty); |
|||
} |
|||
else |
|||
{ |
|||
textElement.SetValue(fontSizeProperty, newFontSize); |
|||
} |
|||
} |
|||
|
|||
} |
|||
} |
|||
@ -0,0 +1,40 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Controls.Utils; |
|||
using Avalonia.Data.Converters; |
|||
using Avalonia.Utilities; |
|||
using System; |
|||
using System.Collections.Generic; |
|||
using System.Globalization; |
|||
using System.Text; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class DataGridValueConverter : IValueConverter |
|||
{ |
|||
public static DataGridValueConverter Instance = new DataGridValueConverter(); |
|||
|
|||
public object Convert(object value, Type targetType, object parameter, CultureInfo culture) |
|||
{ |
|||
return DefaultValueConverter.Instance.Convert(value, targetType, parameter, culture); |
|||
} |
|||
|
|||
// This suppresses a warning saying that we should use String.IsNullOrEmpty instead of a string
|
|||
// comparison, but in this case we want to explicitly check for Empty and not Null.
|
|||
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) |
|||
{ |
|||
if (targetType != null && targetType.IsNullableType()) |
|||
{ |
|||
String strValue = value as String; |
|||
if (strValue == String.Empty) |
|||
{ |
|||
return null; |
|||
} |
|||
} |
|||
return DefaultValueConverter.Instance.ConvertBack(value, targetType, parameter, culture); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,569 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Input; |
|||
using Avalonia.Interactivity; |
|||
using System; |
|||
using System.ComponentModel; |
|||
using System.Diagnostics; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// Provides data for the <see cref="E:Avalonia.Controls.DataGrid.AutoGeneratingColumn" /> event.
|
|||
/// </summary>
|
|||
public class DataGridAutoGeneratingColumnEventArgs : CancelEventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.DataGridAutoGeneratingColumnEventArgs" /> class.
|
|||
/// </summary>
|
|||
/// <param name="propertyName">
|
|||
/// The name of the property bound to the generated column.
|
|||
/// </param>
|
|||
/// <param name="propertyType">
|
|||
/// The <see cref="T:System.Type" /> of the property bound to the generated column.
|
|||
/// </param>
|
|||
/// <param name="column">
|
|||
/// The generated column.
|
|||
/// </param>
|
|||
public DataGridAutoGeneratingColumnEventArgs(string propertyName, Type propertyType, DataGridColumn column) |
|||
{ |
|||
Column = column; |
|||
PropertyName = propertyName; |
|||
PropertyType = propertyType; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the generated column.
|
|||
/// </summary>
|
|||
public DataGridColumn Column |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the name of the property bound to the generated column.
|
|||
/// </summary>
|
|||
public string PropertyName |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the <see cref="T:System.Type" /> of the property bound to the generated column.
|
|||
/// </summary>
|
|||
public Type PropertyType |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides data for the <see cref="E:Avalonia.Controls.DataGrid.BeginningEdit" /> event.
|
|||
/// </summary>
|
|||
public class DataGridBeginningEditEventArgs : CancelEventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Initializes a new instance of the
|
|||
/// <see cref="T:Avalonia.Controls.DataGridBeginningEditEventArgs" /> class.
|
|||
/// </summary>
|
|||
/// <param name="column">
|
|||
/// The column that contains the cell to be edited.
|
|||
/// </param>
|
|||
/// <param name="row">
|
|||
/// The row that contains the cell to be edited.
|
|||
/// </param>
|
|||
/// <param name="editingEventArgs">
|
|||
/// Information about the user gesture that caused the cell to enter edit mode.
|
|||
/// </param>
|
|||
public DataGridBeginningEditEventArgs(DataGridColumn column, |
|||
DataGridRow row, |
|||
RoutedEventArgs editingEventArgs) |
|||
{ |
|||
this.Column = column; |
|||
this.Row = row; |
|||
this.EditingEventArgs = editingEventArgs; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the column that contains the cell to be edited.
|
|||
/// </summary>
|
|||
public DataGridColumn Column |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets information about the user gesture that caused the cell to enter edit mode.
|
|||
/// </summary>
|
|||
public RoutedEventArgs EditingEventArgs |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the row that contains the cell to be edited.
|
|||
/// </summary>
|
|||
public DataGridRow Row |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides information just after a cell has exited editing mode.
|
|||
/// </summary>
|
|||
public class DataGridCellEditEndedEventArgs : EventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Instantiates a new instance of this class.
|
|||
/// </summary>
|
|||
/// <param name="column">The column of the cell that has just exited edit mode.</param>
|
|||
/// <param name="row">The row container of the cell container that has just exited edit mode.</param>
|
|||
/// <param name="editAction">The editing action that has been taken.</param>
|
|||
public DataGridCellEditEndedEventArgs(DataGridColumn column, DataGridRow row, DataGridEditAction editAction) |
|||
{ |
|||
Column = column; |
|||
Row = row; |
|||
EditAction = editAction; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The column of the cell that has just exited edit mode.
|
|||
/// </summary>
|
|||
public DataGridColumn Column |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The edit action taken when leaving edit mode.
|
|||
/// </summary>
|
|||
public DataGridEditAction EditAction |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The row container of the cell container that has just exited edit mode.
|
|||
/// </summary>
|
|||
public DataGridRow Row |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides information after the cell has been pressed.
|
|||
/// </summary>
|
|||
public class DataGridCellPointerPressedEventArgs : EventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Instantiates a new instance of this class.
|
|||
/// </summary>
|
|||
/// <param name="cell">The cell that has been pressed.</param>
|
|||
/// <param name="row">The row container of the cell that has been pressed.</param>
|
|||
/// <param name="column">The column of the cell that has been pressed.</param>
|
|||
/// <param name="e">The pointer action that has been taken.</param>
|
|||
public DataGridCellPointerPressedEventArgs(DataGridCell cell, |
|||
DataGridRow row, |
|||
DataGridColumn column, |
|||
PointerPressedEventArgs e) |
|||
{ |
|||
Cell = cell; |
|||
Row = row; |
|||
Column = column; |
|||
PointerPressedEventArgs = e; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The cell that has been pressed.
|
|||
/// </summary>
|
|||
public DataGridCell Cell { get; } |
|||
|
|||
/// <summary>
|
|||
/// The row container of the cell that has been pressed.
|
|||
/// </summary>
|
|||
public DataGridRow Row { get; } |
|||
|
|||
/// <summary>
|
|||
/// The column of the cell that has been pressed.
|
|||
/// </summary>
|
|||
public DataGridColumn Column { get; } |
|||
|
|||
/// <summary>
|
|||
/// The pointer action that has been taken.
|
|||
/// </summary>
|
|||
public PointerPressedEventArgs PointerPressedEventArgs { get; } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides information just before a cell exits editing mode.
|
|||
/// </summary>
|
|||
public class DataGridCellEditEndingEventArgs : CancelEventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Instantiates a new instance of this class.
|
|||
/// </summary>
|
|||
/// <param name="column">The column of the cell that is about to exit edit mode.</param>
|
|||
/// <param name="row">The row container of the cell container that is about to exit edit mode.</param>
|
|||
/// <param name="editingElement">The editing element within the cell.</param>
|
|||
/// <param name="editAction">The editing action that will be taken.</param>
|
|||
public DataGridCellEditEndingEventArgs(DataGridColumn column, |
|||
DataGridRow row, |
|||
Control editingElement, |
|||
DataGridEditAction editAction) |
|||
{ |
|||
Column = column; |
|||
Row = row; |
|||
EditingElement = editingElement; |
|||
EditAction = editAction; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The column of the cell that is about to exit edit mode.
|
|||
/// </summary>
|
|||
public DataGridColumn Column |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The edit action to take when leaving edit mode.
|
|||
/// </summary>
|
|||
public DataGridEditAction EditAction |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The editing element within the cell.
|
|||
/// </summary>
|
|||
public Control EditingElement |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The row container of the cell container that is about to exit edit mode.
|
|||
/// </summary>
|
|||
public DataGridRow Row |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
} |
|||
|
|||
internal class DataGridCellEventArgs : EventArgs |
|||
{ |
|||
internal DataGridCellEventArgs(DataGridCell dataGridCell) |
|||
{ |
|||
Debug.Assert(dataGridCell != null); |
|||
this.Cell = dataGridCell; |
|||
} |
|||
|
|||
internal DataGridCell Cell |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides data for <see cref="T:Avalonia.Controls.DataGrid" /> column-related events.
|
|||
/// </summary>
|
|||
public class DataGridColumnEventArgs : EventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.DataGridColumnEventArgs" /> class.
|
|||
/// </summary>
|
|||
/// <param name="column">The column that the event occurs for.</param>
|
|||
public DataGridColumnEventArgs(DataGridColumn column) |
|||
{ |
|||
Column = column ?? throw new ArgumentNullException(nameof(column)); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the column that the event occurs for.
|
|||
/// </summary>
|
|||
public DataGridColumn Column |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides data for the <see cref="E:Avalonia.Controls.DataGrid.ColumnReordering" /> event.
|
|||
/// </summary>
|
|||
public class DataGridColumnReorderingEventArgs : CancelEventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.DataGridColumnReorderingEventArgs" /> class.
|
|||
/// </summary>
|
|||
/// <param name="dataGridColumn"></param>
|
|||
public DataGridColumnReorderingEventArgs(DataGridColumn dataGridColumn) |
|||
{ |
|||
this.Column = dataGridColumn; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The column being moved.
|
|||
/// </summary>
|
|||
public DataGridColumn Column |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The popup indicator displayed while dragging. If null and Handled = true, then do not display a tooltip.
|
|||
/// </summary>
|
|||
public Control DragIndicator |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// UIElement to display at the insertion position. If null and Handled = true, then do not display an insertion indicator.
|
|||
/// </summary>
|
|||
public IControl DropLocationIndicator |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides data for <see cref="T:Avalonia.Controls.DataGrid" /> row-related events.
|
|||
/// </summary>
|
|||
public class DataGridRowEventArgs : EventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.DataGridRowEventArgs" /> class.
|
|||
/// </summary>
|
|||
/// <param name="dataGridRow">The row that the event occurs for.</param>
|
|||
public DataGridRowEventArgs(DataGridRow dataGridRow) |
|||
{ |
|||
this.Row = dataGridRow; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the row that the event occurs for.
|
|||
/// </summary>
|
|||
public DataGridRow Row |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides information just before a row exits editing mode.
|
|||
/// </summary>
|
|||
public class DataGridRowEditEndingEventArgs : CancelEventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Instantiates a new instance of this class.
|
|||
/// </summary>
|
|||
/// <param name="row">The row container of the cell container that is about to exit edit mode.</param>
|
|||
/// <param name="editAction">The editing action that will be taken.</param>
|
|||
public DataGridRowEditEndingEventArgs(DataGridRow row, DataGridEditAction editAction) |
|||
{ |
|||
this.Row = row; |
|||
this.EditAction = editAction; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The editing action that will be taken.
|
|||
/// </summary>
|
|||
public DataGridEditAction EditAction |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The row container of the cell container that is about to exit edit mode.
|
|||
/// </summary>
|
|||
public DataGridRow Row |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides information just after a row has exited edit mode.
|
|||
/// </summary>
|
|||
public class DataGridRowEditEndedEventArgs : EventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Instantiates a new instance of this class.
|
|||
/// </summary>
|
|||
/// <param name="row">The row container of the cell container that has just exited edit mode.</param>
|
|||
/// <param name="editAction">The editing action that has been taken.</param>
|
|||
public DataGridRowEditEndedEventArgs(DataGridRow row, DataGridEditAction editAction) |
|||
{ |
|||
this.Row = row; |
|||
this.EditAction = editAction; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The editing action that has been taken.
|
|||
/// </summary>
|
|||
public DataGridEditAction EditAction |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The row container of the cell container that has just exited edit mode.
|
|||
/// </summary>
|
|||
public DataGridRow Row |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides data for the <see cref="E:Avalonia.Controls.DataGrid.PreparingCellForEdit" /> event.
|
|||
/// </summary>
|
|||
public class DataGridPreparingCellForEditEventArgs : EventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.DataGridPreparingCellForEditEventArgs" /> class.
|
|||
/// </summary>
|
|||
/// <param name="column">The column that contains the cell to be edited.</param>
|
|||
/// <param name="row">The row that contains the cell to be edited.</param>
|
|||
/// <param name="editingEventArgs">Information about the user gesture that caused the cell to enter edit mode.</param>
|
|||
/// <param name="editingElement">The element that the column displays for a cell in editing mode.</param>
|
|||
public DataGridPreparingCellForEditEventArgs(DataGridColumn column, |
|||
DataGridRow row, |
|||
RoutedEventArgs editingEventArgs, |
|||
Control editingElement) |
|||
{ |
|||
Column = column; |
|||
Row = row; |
|||
EditingEventArgs = editingEventArgs; |
|||
EditingElement = editingElement; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the column that contains the cell to be edited.
|
|||
/// </summary>
|
|||
public DataGridColumn Column |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the element that the column displays for a cell in editing mode.
|
|||
/// </summary>
|
|||
public Control EditingElement |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets information about the user gesture that caused the cell to enter edit mode.
|
|||
/// </summary>
|
|||
public RoutedEventArgs EditingEventArgs |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the row that contains the cell to be edited.
|
|||
/// </summary>
|
|||
public DataGridRow Row |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
} |
|||
|
|||
/// <summary>
|
|||
/// EventArgs used for the DataGrid's LoadingRowGroup and UnloadingRowGroup events
|
|||
/// </summary>
|
|||
public class DataGridRowGroupHeaderEventArgs : EventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Constructs a DataGridRowGroupHeaderEventArgs instance
|
|||
/// </summary>
|
|||
/// <param name="rowGroupHeader"></param>
|
|||
public DataGridRowGroupHeaderEventArgs(DataGridRowGroupHeader rowGroupHeader) |
|||
{ |
|||
RowGroupHeader = rowGroupHeader; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// DataGridRowGroupHeader associated with this instance
|
|||
/// </summary>
|
|||
public DataGridRowGroupHeader RowGroupHeader |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Provides data for the <see cref="E:Avalonia.Controls.DataGrid.LoadingRowDetails" />, <see cref="E:Avalonia.Controls.DataGrid.UnloadingRowDetails" />,
|
|||
/// and <see cref="E:Avalonia.Controls.DataGrid.RowDetailsVisibilityChanged" /> events.
|
|||
/// </summary>
|
|||
public class DataGridRowDetailsEventArgs : EventArgs |
|||
{ |
|||
/// <summary>
|
|||
/// Initializes a new instance of the <see cref="T:Avalonia.Controls.DataGridRowDetailsEventArgs" /> class.
|
|||
/// </summary>
|
|||
/// <param name="row">The row that the event occurs for.</param>
|
|||
/// <param name="detailsElement">The row details section as a framework element.</param>
|
|||
public DataGridRowDetailsEventArgs(DataGridRow row, IControl detailsElement) |
|||
{ |
|||
Row = row; |
|||
DetailsElement = detailsElement; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the row details section as a framework element.
|
|||
/// </summary>
|
|||
public IControl DetailsElement |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the row that the event occurs for.
|
|||
/// </summary>
|
|||
public DataGridRow Row |
|||
{ |
|||
get; |
|||
private set; |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,25 @@ |
|||
using System; |
|||
using System.Collections.Generic; |
|||
using System.Text; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal static class Extensions |
|||
{ |
|||
internal static Point Translate(this Visual fromElement, Visual toElement, Point fromPoint) |
|||
{ |
|||
if (fromElement == toElement) |
|||
{ |
|||
return fromPoint; |
|||
} |
|||
else |
|||
{ |
|||
var transform = fromElement.TransformToVisual(toElement); |
|||
if (transform.HasValue) |
|||
return fromPoint.Transform(transform.Value); |
|||
else |
|||
return fromPoint; |
|||
} |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,850 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System.Collections.Generic; |
|||
using System.Diagnostics; |
|||
using System; |
|||
using System.Text; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class IndexToValueTable<T> : IEnumerable<Range<T>> |
|||
{ |
|||
private List<Range<T>> _list; |
|||
|
|||
public IndexToValueTable() |
|||
{ |
|||
_list = new List<Range<T>>(); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Total number of indices represented in the table
|
|||
/// </summary>
|
|||
public int IndexCount |
|||
{ |
|||
get |
|||
{ |
|||
int indexCount = 0; |
|||
foreach (Range<T> range in _list) |
|||
{ |
|||
indexCount += range.Count; |
|||
} |
|||
return indexCount; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns true if the table is empty
|
|||
/// </summary>
|
|||
public bool IsEmpty |
|||
{ |
|||
get |
|||
{ |
|||
return _list.Count == 0; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the number of index ranges in the table
|
|||
/// </summary>
|
|||
public int RangeCount |
|||
{ |
|||
get |
|||
{ |
|||
return _list.Count; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Add a value with an associated index to the table
|
|||
/// </summary>
|
|||
/// <param name="index">Index where the value is to be added or updated</param>
|
|||
/// <param name="value">Value to add</param>
|
|||
public void AddValue(int index, T value) |
|||
{ |
|||
AddValues(index, 1, value); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Add multiples values with an associated start index to the table
|
|||
/// </summary>
|
|||
/// <param name="startIndex">index where first value is added</param>
|
|||
/// <param name="count">Total number of values to add (must be greater than 0)</param>
|
|||
/// <param name="value">Value to add</param>
|
|||
public void AddValues(int startIndex, int count, T value) |
|||
{ |
|||
Debug.Assert(count > 0); |
|||
AddValuesPrivate(startIndex, count, value, null); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Clears the index table
|
|||
/// </summary>
|
|||
public void Clear() |
|||
{ |
|||
_list.Clear(); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns true if the given index is contained in the table
|
|||
/// </summary>
|
|||
/// <param name="index">index to search for</param>
|
|||
/// <returns>True if the index is contained in the table</returns>
|
|||
public bool Contains(int index) |
|||
{ |
|||
return IsCorrectRangeIndex(this.FindRangeIndex(index), index); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns true if the entire given index range is contained in the table
|
|||
/// </summary>
|
|||
/// <param name="startIndex">beginning of the range</param>
|
|||
/// <param name="endIndex">end of the range</param>
|
|||
/// <returns>True if the entire index range is present in the table</returns>
|
|||
public bool ContainsAll(int startIndex, int endIndex) |
|||
{ |
|||
int start = -1; |
|||
int end = -1; |
|||
|
|||
foreach (Range<T> range in _list) |
|||
{ |
|||
if (start == -1 && range.UpperBound >= startIndex) |
|||
{ |
|||
if (startIndex < range.LowerBound) |
|||
{ |
|||
return false; |
|||
} |
|||
start = startIndex; |
|||
end = range.UpperBound; |
|||
if (end >= endIndex) |
|||
{ |
|||
return true; |
|||
} |
|||
} |
|||
else if (start != -1) |
|||
{ |
|||
if (range.LowerBound > end + 1) |
|||
{ |
|||
return false; |
|||
} |
|||
end = range.UpperBound; |
|||
if (end >= endIndex) |
|||
{ |
|||
return true; |
|||
} |
|||
} |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns true if the given index is contained in the table with the the given value
|
|||
/// </summary>
|
|||
/// <param name="index">index to search for</param>
|
|||
/// <param name="value">value expected</param>
|
|||
/// <returns>true if the given index is contained in the table with the the given value</returns>
|
|||
public bool ContainsIndexAndValue(int index, T value) |
|||
{ |
|||
int lowerRangeIndex = this.FindRangeIndex(index); |
|||
return ((IsCorrectRangeIndex(lowerRangeIndex, index)) && (_list[lowerRangeIndex].ContainsValue(value))); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns a copy of this IndexToValueTable
|
|||
/// </summary>
|
|||
/// <returns>copy of this IndexToValueTable</returns>
|
|||
public IndexToValueTable<T> Copy() |
|||
{ |
|||
IndexToValueTable<T> copy = new IndexToValueTable<T>(); |
|||
foreach (Range<T> range in this._list) |
|||
{ |
|||
copy._list.Add(range.Copy()); |
|||
} |
|||
return copy; |
|||
} |
|||
|
|||
public int GetNextGap(int index) |
|||
{ |
|||
int targetIndex = index + 1; |
|||
int rangeIndex = FindRangeIndex(targetIndex); |
|||
if (IsCorrectRangeIndex(rangeIndex, targetIndex)) |
|||
{ |
|||
while (rangeIndex < _list.Count - 1 && _list[rangeIndex].UpperBound == _list[rangeIndex + 1].LowerBound - 1) |
|||
{ |
|||
rangeIndex++; |
|||
} |
|||
return _list[rangeIndex].UpperBound + 1; |
|||
} |
|||
else |
|||
{ |
|||
return targetIndex; |
|||
} |
|||
} |
|||
|
|||
public int GetNextIndex(int index) |
|||
{ |
|||
int targetIndex = index + 1; |
|||
int rangeIndex = FindRangeIndex(targetIndex); |
|||
if (IsCorrectRangeIndex(rangeIndex, targetIndex)) |
|||
{ |
|||
return targetIndex; |
|||
} |
|||
else |
|||
{ |
|||
rangeIndex++; |
|||
return rangeIndex < _list.Count ? _list[rangeIndex].LowerBound : -1; |
|||
} |
|||
} |
|||
|
|||
public int GetPreviousGap(int index) |
|||
{ |
|||
int targetIndex = index - 1; |
|||
int rangeIndex = FindRangeIndex(targetIndex); |
|||
if (IsCorrectRangeIndex(rangeIndex, targetIndex)) |
|||
{ |
|||
while (rangeIndex > 0 && _list[rangeIndex].LowerBound == _list[rangeIndex - 1].UpperBound + 1) |
|||
{ |
|||
rangeIndex--; |
|||
} |
|||
return _list[rangeIndex].LowerBound - 1; |
|||
} |
|||
else |
|||
{ |
|||
return targetIndex; |
|||
} |
|||
} |
|||
|
|||
public int GetPreviousIndex(int index) |
|||
{ |
|||
int targetIndex = index - 1; |
|||
int rangeIndex = FindRangeIndex(targetIndex); |
|||
if (IsCorrectRangeIndex(rangeIndex, targetIndex)) |
|||
{ |
|||
return targetIndex; |
|||
} |
|||
else |
|||
{ |
|||
return rangeIndex >= 0 && rangeIndex < _list.Count ? _list[rangeIndex].UpperBound : -1; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the inclusive index count between lowerBound and upperBound of all indexes with the given value
|
|||
/// </summary>
|
|||
/// <param name="lowerBound">lowerBound criteria</param>
|
|||
/// <param name="upperBound">upperBound criteria</param>
|
|||
/// <param name="value">value to look for</param>
|
|||
/// <returns>Number of indexes contained in the table between lowerBound and upperBound (inclusive)</returns>
|
|||
public int GetIndexCount(int lowerBound, int upperBound, T value) |
|||
{ |
|||
Debug.Assert(upperBound >= lowerBound); |
|||
if (_list.Count == 0) |
|||
{ |
|||
return 0; |
|||
} |
|||
int count = 0; |
|||
int index = FindRangeIndex(lowerBound); |
|||
if (IsCorrectRangeIndex(index, lowerBound) && _list[index].ContainsValue(value)) |
|||
{ |
|||
count += _list[index].UpperBound - lowerBound + 1; |
|||
} |
|||
index++; |
|||
while (index < _list.Count && _list[index].UpperBound <= upperBound) |
|||
{ |
|||
if (_list[index].ContainsValue(value)) |
|||
{ |
|||
count += _list[index].Count; |
|||
} |
|||
index++; |
|||
} |
|||
if (index < _list.Count && IsCorrectRangeIndex(index, upperBound) && _list[index].ContainsValue(value)) |
|||
{ |
|||
count += upperBound - _list[index].LowerBound; |
|||
} |
|||
return count; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the inclusive index count between lowerBound and upperBound
|
|||
/// </summary>
|
|||
/// <param name="lowerBound">lowerBound criteria</param>
|
|||
/// <param name="upperBound">upperBound criteria</param>
|
|||
/// <returns>Number of indexes contained in the table between lowerBound and upperBound (inclusive)</returns>
|
|||
public int GetIndexCount(int lowerBound, int upperBound) |
|||
{ |
|||
if (upperBound < lowerBound || _list.Count == 0) |
|||
{ |
|||
return 0; |
|||
} |
|||
int count = 0; |
|||
int index = this.FindRangeIndex(lowerBound); |
|||
if (IsCorrectRangeIndex(index, lowerBound)) |
|||
{ |
|||
count += _list[index].UpperBound - lowerBound + 1; |
|||
} |
|||
index++; |
|||
while (index < _list.Count && _list[index].UpperBound <= upperBound) |
|||
{ |
|||
count += _list[index].Count; |
|||
index++; |
|||
} |
|||
if (index < _list.Count && IsCorrectRangeIndex(index, upperBound)) |
|||
{ |
|||
count += upperBound - _list[index].LowerBound; |
|||
} |
|||
return count; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the number indexes in this table after a given startingIndex but before
|
|||
/// reaching a gap of indexes of a given size
|
|||
/// </summary>
|
|||
/// <param name="startingIndex">Index to start at</param>
|
|||
/// <param name="gapSize">Size of index gap</param>
|
|||
/// <returns></returns>
|
|||
public int GetIndexCountBeforeGap(int startingIndex, int gapSize) |
|||
{ |
|||
if (_list.Count == 0) |
|||
{ |
|||
return 0; |
|||
} |
|||
|
|||
int count = 0; |
|||
int currentIndex = startingIndex; |
|||
int rangeIndex = 0; |
|||
int gap = 0; |
|||
while (gap <= gapSize && rangeIndex < _list.Count) |
|||
{ |
|||
gap += _list[rangeIndex].LowerBound - currentIndex; |
|||
if (gap <= gapSize) |
|||
{ |
|||
count += _list[rangeIndex].UpperBound - _list[rangeIndex].LowerBound + 1; |
|||
currentIndex = _list[rangeIndex].UpperBound + 1; |
|||
rangeIndex++; |
|||
} |
|||
} |
|||
return count; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns an enumerator that goes through the indexes present in the table
|
|||
/// </summary>
|
|||
/// <returns>an enumerator that enumerates the indexes present in the table</returns>
|
|||
public IEnumerable<int> GetIndexes() |
|||
{ |
|||
Debug.Assert(_list != null); |
|||
|
|||
foreach (Range<T> range in _list) |
|||
{ |
|||
for (int i = range.LowerBound; i <= range.UpperBound; i++) |
|||
{ |
|||
yield return i; |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns all the indexes on or after a starting index
|
|||
/// </summary>
|
|||
/// <param name="startIndex">start index</param>
|
|||
/// <returns></returns>
|
|||
public IEnumerable<int> GetIndexes(int startIndex) |
|||
{ |
|||
Debug.Assert(_list != null); |
|||
|
|||
int rangeIndex = FindRangeIndex(startIndex); |
|||
if (rangeIndex == -1) |
|||
{ |
|||
rangeIndex++; |
|||
} |
|||
|
|||
while (rangeIndex < _list.Count) |
|||
{ |
|||
for (int i = _list[rangeIndex].LowerBound; i <= _list[rangeIndex].UpperBound; i++) |
|||
{ |
|||
if (i >= startIndex) |
|||
{ |
|||
yield return i; |
|||
} |
|||
} |
|||
rangeIndex++; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Return the index of the Nth element in the table.
|
|||
/// </summary>
|
|||
/// <param name="n">n</param>
|
|||
public int GetNthIndex(int n) |
|||
{ |
|||
Debug.Assert(n >= 0 && n < this.IndexCount); |
|||
int cumulatedEntries = 0; |
|||
foreach (Range<T> range in _list) |
|||
{ |
|||
if (cumulatedEntries + range.Count > n) |
|||
{ |
|||
return range.LowerBound + n - cumulatedEntries; |
|||
} |
|||
else |
|||
{ |
|||
cumulatedEntries += range.Count; |
|||
} |
|||
} |
|||
return -1; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the value at a given index or the default value if the index is not in the table
|
|||
/// </summary>
|
|||
/// <param name="index">index to search for</param>
|
|||
/// <returns>the value at the given index or the default value if index is not in the table</returns>
|
|||
public T GetValueAt(int index) |
|||
{ |
|||
return GetValueAt(index, out bool found); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the value at a given index or the default value if the index is not in the table
|
|||
/// </summary>
|
|||
/// <param name="index">index to search for</param>
|
|||
/// <param name="found">set to true by the method if the index was found; otherwise, false</param>
|
|||
/// <returns>the value at the given index or the default value if index is not in the table</returns>
|
|||
public T GetValueAt(int index, out bool found) |
|||
{ |
|||
int rangeIndex = this.FindRangeIndex(index); |
|||
if (this.IsCorrectRangeIndex(rangeIndex, index)) |
|||
{ |
|||
found = true; |
|||
return _list[rangeIndex].Value; |
|||
} |
|||
else |
|||
{ |
|||
found = false; |
|||
return default(T); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns an index's index within this table
|
|||
/// </summary>
|
|||
/// <param name="index"></param>
|
|||
/// <returns></returns>
|
|||
public int IndexOf(int index) |
|||
{ |
|||
int cumulatedIndexes = 0; |
|||
foreach (Range<T> range in _list) |
|||
{ |
|||
if (range.UpperBound >= index) |
|||
{ |
|||
cumulatedIndexes += index - range.LowerBound; |
|||
break; |
|||
} |
|||
else |
|||
{ |
|||
cumulatedIndexes += range.Count; |
|||
} |
|||
} |
|||
return cumulatedIndexes; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Inserts an index at the given location. This does not alter values in the table
|
|||
/// </summary>
|
|||
/// <param name="index">index location to insert an index</param>
|
|||
public void InsertIndex(int index) |
|||
{ |
|||
InsertIndexes(index, 1); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Inserts an index into the table with the given value
|
|||
/// </summary>
|
|||
/// <param name="index">index to insert</param>
|
|||
/// <param name="value">value for the index</param>
|
|||
public void InsertIndexAndValue(int index, T value) |
|||
{ |
|||
InsertIndexesAndValues(index, 1, value); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Inserts multiple indexes into the table. This does not alter Values in the table
|
|||
/// </summary>
|
|||
/// <param name="startIndex">first index to insert</param>
|
|||
/// <param name="count">total number of indexes to insert</param>
|
|||
public void InsertIndexes(int startIndex, int count) |
|||
{ |
|||
Debug.Assert(count > 0); |
|||
InsertIndexesPrivate(startIndex, count, this.FindRangeIndex(startIndex)); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Inserts multiple indexes into the table with the given value
|
|||
/// </summary>
|
|||
/// <param name="startIndex">Index to insert first value</param>
|
|||
/// <param name="count">Total number of values to insert (must be greater than 0)</param>
|
|||
/// <param name="value">Value to insert</param>
|
|||
public void InsertIndexesAndValues(int startIndex, int count, T value) |
|||
{ |
|||
Debug.Assert(count > 0); |
|||
int lowerRangeIndex = this.FindRangeIndex(startIndex); |
|||
InsertIndexesPrivate(startIndex, count, lowerRangeIndex); |
|||
if ((lowerRangeIndex >= 0) && (_list[lowerRangeIndex].LowerBound > startIndex)) |
|||
{ |
|||
// Because of the insert, the original range no longer contains the startIndex
|
|||
lowerRangeIndex--; |
|||
} |
|||
AddValuesPrivate(startIndex, count, value, lowerRangeIndex); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Removes an index from the table. This does not alter Values in the table
|
|||
/// </summary>
|
|||
/// <param name="index">index to remove</param>
|
|||
public void RemoveIndex(int index) |
|||
{ |
|||
RemoveIndexes(index, 1); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Removes a value and its index from the table
|
|||
/// </summary>
|
|||
/// <param name="index">index to remove</param>
|
|||
public void RemoveIndexAndValue(int index) |
|||
{ |
|||
RemoveIndexesAndValues(index, 1); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Removes multiple indexes from the table. This does not alter Values in the table
|
|||
/// </summary>
|
|||
/// <param name="startIndex">first index to remove</param>
|
|||
/// <param name="count">total number of indexes to remove</param>
|
|||
public void RemoveIndexes(int startIndex, int count) |
|||
{ |
|||
int lowerRangeIndex = this.FindRangeIndex(startIndex); |
|||
if (lowerRangeIndex < 0) |
|||
{ |
|||
lowerRangeIndex = 0; |
|||
} |
|||
int i = lowerRangeIndex; |
|||
while (i < _list.Count) |
|||
{ |
|||
Range<T> range = _list[i]; |
|||
if (range.UpperBound >= startIndex) |
|||
{ |
|||
if (range.LowerBound >= startIndex + count) |
|||
{ |
|||
// Both bounds will remain after the removal
|
|||
range.LowerBound -= count; |
|||
range.UpperBound -= count; |
|||
} |
|||
else |
|||
{ |
|||
int currentIndex = i; |
|||
if (range.LowerBound <= startIndex) |
|||
{ |
|||
// Range gets split up
|
|||
if (range.UpperBound >= startIndex + count) |
|||
{ |
|||
i++; |
|||
_list.Insert(i, new Range<T>(startIndex, range.UpperBound - count, range.Value)); |
|||
} |
|||
range.UpperBound = startIndex - 1; |
|||
} |
|||
else |
|||
{ |
|||
range.LowerBound = startIndex; |
|||
range.UpperBound -= count; |
|||
} |
|||
if (RemoveRangeIfInvalid(range, currentIndex)) |
|||
{ |
|||
i--; |
|||
} |
|||
} |
|||
} |
|||
i++; |
|||
} |
|||
if (!this.Merge(lowerRangeIndex)) |
|||
{ |
|||
this.Merge(lowerRangeIndex + 1); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Removes multiple values and their indexes from the table
|
|||
/// </summary>
|
|||
/// <param name="startIndex">first index to remove</param>
|
|||
/// <param name="count">total number of indexes to remove</param>
|
|||
public void RemoveIndexesAndValues(int startIndex, int count) |
|||
{ |
|||
RemoveValues(startIndex, count); |
|||
RemoveIndexes(startIndex, count); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Removes a value from the table at the given index. This does not alter other indexes in the table.
|
|||
/// </summary>
|
|||
/// <param name="index">index where value should be removed</param>
|
|||
public void RemoveValue(int index) |
|||
{ |
|||
RemoveValues(index, 1); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Removes multiple values from the table. This does not alter other indexes in the table.
|
|||
/// </summary>
|
|||
/// <param name="startIndex">first index where values should be removed </param>
|
|||
/// <param name="count">total number of values to remove</param>
|
|||
public void RemoveValues(int startIndex, int count) |
|||
{ |
|||
Debug.Assert(count > 0); |
|||
|
|||
int lowerRangeIndex = this.FindRangeIndex(startIndex); |
|||
if (lowerRangeIndex < 0) |
|||
{ |
|||
lowerRangeIndex = 0; |
|||
} |
|||
while ((lowerRangeIndex < _list.Count) && (_list[lowerRangeIndex].UpperBound < startIndex)) |
|||
{ |
|||
lowerRangeIndex++; |
|||
} |
|||
if (lowerRangeIndex >= _list.Count || _list[lowerRangeIndex].LowerBound > startIndex + count - 1) |
|||
{ |
|||
// If all the values are above our below our values, we have nothing to remove
|
|||
return; |
|||
} |
|||
if (_list[lowerRangeIndex].LowerBound < startIndex) |
|||
{ |
|||
// Need to split this up
|
|||
_list.Insert(lowerRangeIndex, new Range<T>(_list[lowerRangeIndex].LowerBound, startIndex - 1, _list[lowerRangeIndex].Value)); |
|||
lowerRangeIndex++; |
|||
} |
|||
_list[lowerRangeIndex].LowerBound = startIndex + count; |
|||
if (!RemoveRangeIfInvalid(_list[lowerRangeIndex], lowerRangeIndex)) |
|||
{ |
|||
lowerRangeIndex++; |
|||
} |
|||
while ((lowerRangeIndex < _list.Count) && (_list[lowerRangeIndex].UpperBound < startIndex + count)) |
|||
{ |
|||
_list.RemoveAt(lowerRangeIndex); |
|||
} |
|||
if ((lowerRangeIndex < _list.Count) && (_list[lowerRangeIndex].UpperBound >= startIndex + count) && |
|||
(_list[lowerRangeIndex].LowerBound < startIndex + count)) |
|||
{ |
|||
// Chop off the start of the remaining Range if it contains values that we're removing
|
|||
_list[lowerRangeIndex].LowerBound = startIndex + count; |
|||
RemoveRangeIfInvalid(_list[lowerRangeIndex], lowerRangeIndex); |
|||
} |
|||
} |
|||
|
|||
private void AddValuesPrivate(int startIndex, int count, T value, int? startRangeIndex) |
|||
{ |
|||
Debug.Assert(count > 0); |
|||
|
|||
int endIndex = startIndex + count - 1; |
|||
Range<T> newRange = new Range<T>(startIndex, endIndex, value); |
|||
if (_list.Count == 0) |
|||
{ |
|||
_list.Add(newRange); |
|||
} |
|||
else |
|||
{ |
|||
int lowerRangeIndex = startRangeIndex ?? FindRangeIndex(startIndex); |
|||
Range<T> lowerRange = (lowerRangeIndex < 0) ? null : _list[lowerRangeIndex]; |
|||
if (lowerRange == null) |
|||
{ |
|||
if (lowerRangeIndex < 0) |
|||
{ |
|||
lowerRangeIndex = 0; |
|||
} |
|||
_list.Insert(lowerRangeIndex, newRange); |
|||
} |
|||
else |
|||
{ |
|||
if (!lowerRange.Value.Equals(value) && (lowerRange.UpperBound >= startIndex)) |
|||
{ |
|||
// Split up the range
|
|||
if (lowerRange.UpperBound > endIndex) |
|||
{ |
|||
_list.Insert(lowerRangeIndex + 1, new Range<T>(endIndex + 1, lowerRange.UpperBound, lowerRange.Value)); |
|||
} |
|||
lowerRange.UpperBound = startIndex - 1; |
|||
if (!RemoveRangeIfInvalid(lowerRange, lowerRangeIndex)) |
|||
{ |
|||
lowerRangeIndex++; |
|||
} |
|||
_list.Insert(lowerRangeIndex, newRange); |
|||
} |
|||
else |
|||
{ |
|||
_list.Insert(lowerRangeIndex + 1, newRange); |
|||
if (!Merge(lowerRangeIndex)) |
|||
{ |
|||
lowerRangeIndex++; |
|||
} |
|||
} |
|||
} |
|||
|
|||
// At this point the newRange has been inserted in the correct place, now we need to remove
|
|||
// any subsequent ranges that no longer make sense and possibly update the one at newRange.UpperBound
|
|||
int upperRangeIndex = lowerRangeIndex + 1; |
|||
while ((upperRangeIndex < _list.Count) && (_list[upperRangeIndex].UpperBound < endIndex)) |
|||
{ |
|||
_list.RemoveAt(upperRangeIndex); |
|||
} |
|||
if (upperRangeIndex < _list.Count) |
|||
{ |
|||
Range<T> upperRange = _list[upperRangeIndex]; |
|||
if (upperRange.LowerBound <= endIndex) |
|||
{ |
|||
// Update the range
|
|||
upperRange.LowerBound = endIndex + 1; |
|||
RemoveRangeIfInvalid(upperRange, upperRangeIndex); |
|||
} |
|||
Merge(lowerRangeIndex); |
|||
} |
|||
} |
|||
} |
|||
|
|||
// Returns the index of the range that contains the input or the range before if the input is not found
|
|||
private int FindRangeIndex(int index) |
|||
{ |
|||
if (_list.Count == 0) |
|||
{ |
|||
return -1; |
|||
} |
|||
|
|||
// Do a binary search for the index
|
|||
int front = 0; |
|||
int end = _list.Count - 1; |
|||
Range<T> range = null; |
|||
while (end > front) |
|||
{ |
|||
int median = (front + end) / 2; |
|||
range = _list[median]; |
|||
if (range.UpperBound < index) |
|||
{ |
|||
front = median + 1; |
|||
} |
|||
else if (range.LowerBound > index) |
|||
{ |
|||
end = median - 1; |
|||
} |
|||
else |
|||
{ |
|||
// we found it
|
|||
return median; |
|||
} |
|||
} |
|||
|
|||
if (front == end) |
|||
{ |
|||
range = _list[front]; |
|||
if (range.ContainsIndex(index) || (range.UpperBound < index)) |
|||
{ |
|||
// we found it or the index isn't there and we're one range before
|
|||
return front; |
|||
} |
|||
else |
|||
{ |
|||
// not found and we're one range after
|
|||
return front - 1; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
// end is one index before front in this case so it's the range before
|
|||
return end; |
|||
} |
|||
} |
|||
|
|||
private bool Merge(int lowerRangeIndex) |
|||
{ |
|||
int upperRangeIndex = lowerRangeIndex + 1; |
|||
if ((lowerRangeIndex >= 0) && (upperRangeIndex < _list.Count)) |
|||
{ |
|||
Range<T> lowerRange = _list[lowerRangeIndex]; |
|||
Range<T> upperRange = _list[upperRangeIndex]; |
|||
if ((lowerRange.UpperBound + 1 >= upperRange.LowerBound) && (lowerRange.Value.Equals(upperRange.Value))) |
|||
{ |
|||
lowerRange.UpperBound = Math.Max(lowerRange.UpperBound, upperRange.UpperBound); |
|||
_list.RemoveAt(upperRangeIndex); |
|||
return true; |
|||
} |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
private void InsertIndexesPrivate(int startIndex, int count, int lowerRangeIndex) |
|||
{ |
|||
Debug.Assert(count > 0); |
|||
|
|||
// Same as AddRange after we fix the indicies affected by the insertion
|
|||
int startRangeIndex = (lowerRangeIndex >= 0) ? lowerRangeIndex : 0; |
|||
for (int i = startRangeIndex; i < _list.Count; i++) |
|||
{ |
|||
Range<T> range = _list[i]; |
|||
if (range.LowerBound >= startIndex) |
|||
{ |
|||
range.LowerBound += count; |
|||
} |
|||
else |
|||
{ |
|||
if (range.UpperBound >= startIndex) |
|||
{ |
|||
// Split up this range
|
|||
i++; |
|||
_list.Insert(i, new Range<T>(startIndex, range.UpperBound + count, range.Value)); |
|||
range.UpperBound = startIndex - 1; |
|||
continue; |
|||
} |
|||
} |
|||
|
|||
if (range.UpperBound >= startIndex) |
|||
{ |
|||
range.UpperBound += count; |
|||
} |
|||
} |
|||
} |
|||
|
|||
private bool IsCorrectRangeIndex(int rangeIndex, int index) |
|||
{ |
|||
return (-1 != rangeIndex) && (_list[rangeIndex].ContainsIndex(index)); |
|||
} |
|||
|
|||
private bool RemoveRangeIfInvalid(Range<T> range, int rangeIndex) |
|||
{ |
|||
if (range.UpperBound < range.LowerBound) |
|||
{ |
|||
_list.RemoveAt(rangeIndex); |
|||
return true; |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
public IEnumerator<Range<T>> GetEnumerator() |
|||
{ |
|||
return _list.GetEnumerator(); |
|||
} |
|||
|
|||
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() |
|||
{ |
|||
return _list.GetEnumerator(); |
|||
} |
|||
|
|||
#if DEBUG
|
|||
|
|||
public void PrintIndexes() |
|||
{ |
|||
Debug.WriteLine(this.IndexCount + " indexes"); |
|||
foreach (Range<T> range in _list) |
|||
{ |
|||
Debug.WriteLine(String.Format(System.Globalization.CultureInfo.InvariantCulture, "{0} - {1}", range.LowerBound, range.UpperBound)); |
|||
} |
|||
} |
|||
|
|||
#endif
|
|||
} |
|||
} |
|||
@ -0,0 +1,315 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Media; |
|||
using Avalonia.Utilities; |
|||
using System; |
|||
using System.Diagnostics; |
|||
using Avalonia.Controls; |
|||
using Avalonia.Controls.Utils; |
|||
|
|||
namespace Avalonia.Controls.Primitives |
|||
{ |
|||
/// <summary>
|
|||
/// Used within the template of a <see cref="T:Avalonia.Controls.DataGrid" />
|
|||
/// to specify the location in the control's visual tree where the cells are to be added.
|
|||
/// </summary>
|
|||
public sealed class DataGridCellsPresenter : Panel |
|||
{ |
|||
private double _fillerLeftEdge; |
|||
|
|||
// The desired height needs to be cached due to column virtualization; otherwise, the cells
|
|||
// would grow and shrink as the DataGrid scrolls horizontally
|
|||
private double DesiredHeight |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
private DataGrid OwningGrid |
|||
{ |
|||
get |
|||
{ |
|||
return OwningRow?.OwningGrid; |
|||
} |
|||
} |
|||
|
|||
internal DataGridRow OwningRow |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Arranges the content of the <see cref="T:Avalonia.Controls.Primitives.DataGridCellsPresenter" />.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// The actual size used by the <see cref="T:Avalonia.Controls.Primitives.DataGridCellsPresenter" />.
|
|||
/// </returns>
|
|||
/// <param name="finalSize">
|
|||
/// The final area within the parent that this element should use to arrange itself and its children.
|
|||
/// </param>
|
|||
protected override Size ArrangeOverride(Size finalSize) |
|||
{ |
|||
if (OwningGrid == null) |
|||
{ |
|||
return base.ArrangeOverride(finalSize); |
|||
} |
|||
|
|||
if (OwningGrid.AutoSizingColumns) |
|||
{ |
|||
// When we initially load an auto-column, we have to wait for all the rows to be measured
|
|||
// before we know its final desired size. We need to trigger a new round of measures now
|
|||
// that the final sizes have been calculated.
|
|||
OwningGrid.AutoSizingColumns = false; |
|||
return base.ArrangeOverride(finalSize); |
|||
} |
|||
|
|||
double frozenLeftEdge = 0; |
|||
double scrollingLeftEdge = -OwningGrid.HorizontalOffset; |
|||
|
|||
double cellLeftEdge; |
|||
foreach (DataGridColumn column in OwningGrid.ColumnsInternal.GetVisibleColumns()) |
|||
{ |
|||
DataGridCell cell = OwningRow.Cells[column.Index]; |
|||
Debug.Assert(cell.OwningColumn == column); |
|||
Debug.Assert(column.IsVisible); |
|||
|
|||
if (column.IsFrozen) |
|||
{ |
|||
cellLeftEdge = frozenLeftEdge; |
|||
// This can happen before or after clipping because frozen cells aren't clipped
|
|||
frozenLeftEdge += column.ActualWidth; |
|||
} |
|||
else |
|||
{ |
|||
cellLeftEdge = scrollingLeftEdge; |
|||
} |
|||
if (cell.IsVisible) |
|||
{ |
|||
cell.Arrange(new Rect(cellLeftEdge, 0, column.LayoutRoundedWidth, finalSize.Height)); |
|||
EnsureCellClip(cell, column.ActualWidth, finalSize.Height, frozenLeftEdge, scrollingLeftEdge); |
|||
} |
|||
scrollingLeftEdge += column.ActualWidth; |
|||
column.IsInitialDesiredWidthDetermined = true; |
|||
} |
|||
|
|||
_fillerLeftEdge = scrollingLeftEdge; |
|||
|
|||
OwningRow.FillerCell.Arrange(new Rect(_fillerLeftEdge, 0, OwningGrid.ColumnsInternal.FillerColumn.FillerWidth, finalSize.Height)); |
|||
|
|||
return finalSize; |
|||
} |
|||
|
|||
private static void EnsureCellClip(DataGridCell cell, double width, double height, double frozenLeftEdge, double cellLeftEdge) |
|||
{ |
|||
// Clip the cell only if it's scrolled under frozen columns. Unfortunately, we need to clip in this case
|
|||
// because cells could be transparent
|
|||
if (!cell.OwningColumn.IsFrozen && frozenLeftEdge > cellLeftEdge) |
|||
{ |
|||
RectangleGeometry rg = new RectangleGeometry(); |
|||
double xClip = Math.Round(Math.Min(width, frozenLeftEdge - cellLeftEdge)); |
|||
rg.Rect = new Rect(xClip, 0, Math.Max(0, width - xClip), height); |
|||
cell.Clip = rg; |
|||
} |
|||
else |
|||
{ |
|||
cell.Clip = null; |
|||
} |
|||
} |
|||
|
|||
private static void EnsureCellDisplay(DataGridCell cell, bool displayColumn) |
|||
{ |
|||
if (cell.IsCurrent) |
|||
{ |
|||
if (displayColumn) |
|||
{ |
|||
cell.IsVisible = true; |
|||
cell.Clip = null; |
|||
} |
|||
else |
|||
{ |
|||
// Clip
|
|||
RectangleGeometry rg = new RectangleGeometry(); |
|||
rg.Rect = Rect.Empty; |
|||
cell.Clip = rg; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
cell.IsVisible = displayColumn; |
|||
} |
|||
} |
|||
|
|||
internal void EnsureFillerVisibility() |
|||
{ |
|||
DataGridFillerColumn fillerColumn = OwningGrid.ColumnsInternal.FillerColumn; |
|||
bool newVisibility = fillerColumn.IsActive; |
|||
if (OwningRow.FillerCell.IsVisible != newVisibility) |
|||
{ |
|||
OwningRow.FillerCell.IsVisible = newVisibility; |
|||
if (newVisibility) |
|||
{ |
|||
OwningRow.FillerCell.Arrange(new Rect(_fillerLeftEdge, 0, fillerColumn.FillerWidth, Bounds.Height)); |
|||
} |
|||
} |
|||
|
|||
// This must be done after the Filler visibility is determined. This also must be done
|
|||
// regardless of whether or not the filler visibility actually changed values because
|
|||
// we could scroll in a cell that didn't have EnsureGridLine called yet
|
|||
DataGridColumn lastVisibleColumn = OwningGrid.ColumnsInternal.LastVisibleColumn; |
|||
if (lastVisibleColumn != null) |
|||
{ |
|||
DataGridCell cell = OwningRow.Cells[lastVisibleColumn.Index]; |
|||
cell.EnsureGridLine(lastVisibleColumn); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Measures the children of a <see cref="T:Avalonia.Controls.Primitives.DataGridCellsPresenter" /> to
|
|||
/// prepare for arranging them during the <see cref="M:System.Windows.FrameworkElement.ArrangeOverride(System.Windows.Size)" /> pass.
|
|||
/// </summary>
|
|||
/// <param name="availableSize">
|
|||
/// The available size that this element can give to child elements. Indicates an upper limit that child elements should not exceed.
|
|||
/// </param>
|
|||
/// <returns>
|
|||
/// The size that the <see cref="T:Avalonia.Controls.Primitives.DataGridCellsPresenter" /> determines it needs during layout, based on its calculations of child object allocated sizes.
|
|||
/// </returns>
|
|||
protected override Size MeasureOverride(Size availableSize) |
|||
{ |
|||
if (OwningGrid == null) |
|||
{ |
|||
return base.MeasureOverride(availableSize); |
|||
} |
|||
|
|||
bool autoSizeHeight; |
|||
double measureHeight; |
|||
if (double.IsNaN(OwningGrid.RowHeight)) |
|||
{ |
|||
// No explicit height values were set so we can autosize
|
|||
autoSizeHeight = true; |
|||
measureHeight = double.PositiveInfinity; |
|||
} |
|||
else |
|||
{ |
|||
DesiredHeight = OwningGrid.RowHeight; |
|||
measureHeight = DesiredHeight; |
|||
autoSizeHeight = false; |
|||
} |
|||
|
|||
double frozenLeftEdge = 0; |
|||
double totalDisplayWidth = 0; |
|||
double scrollingLeftEdge = -OwningGrid.HorizontalOffset; |
|||
OwningGrid.ColumnsInternal.EnsureVisibleEdgedColumnsWidth(); |
|||
DataGridColumn lastVisibleColumn = OwningGrid.ColumnsInternal.LastVisibleColumn; |
|||
foreach (DataGridColumn column in OwningGrid.ColumnsInternal.GetVisibleColumns()) |
|||
{ |
|||
DataGridCell cell = OwningRow.Cells[column.Index]; |
|||
// Measure the entire first row to make the horizontal scrollbar more accurate
|
|||
bool shouldDisplayCell = ShouldDisplayCell(column, frozenLeftEdge, scrollingLeftEdge) || OwningRow.Index == 0; |
|||
EnsureCellDisplay(cell, shouldDisplayCell); |
|||
if (shouldDisplayCell) |
|||
{ |
|||
DataGridLength columnWidth = column.Width; |
|||
bool autoGrowWidth = columnWidth.IsSizeToCells || columnWidth.IsAuto; |
|||
if (column != lastVisibleColumn) |
|||
{ |
|||
cell.EnsureGridLine(lastVisibleColumn); |
|||
} |
|||
|
|||
// If we're not using star sizing or the current column can't be resized,
|
|||
// then just set the display width according to the column's desired width
|
|||
if (!OwningGrid.UsesStarSizing || (!column.ActualCanUserResize && !column.Width.IsStar)) |
|||
{ |
|||
// In the edge-case where we're given infinite width and we have star columns, the
|
|||
// star columns grow to their predefined limit of 10,000 (or their MaxWidth)
|
|||
double newDisplayWidth = column.Width.IsStar ? |
|||
Math.Min(column.ActualMaxWidth, DataGrid.DATAGRID_maximumStarColumnWidth) : |
|||
Math.Max(column.ActualMinWidth, Math.Min(column.ActualMaxWidth, column.Width.DesiredValue)); |
|||
column.SetWidthDisplayValue(newDisplayWidth); |
|||
} |
|||
|
|||
// If we're auto-growing the column based on the cell content, we want to measure it at its maximum value
|
|||
if (autoGrowWidth) |
|||
{ |
|||
cell.Measure(new Size(column.ActualMaxWidth, measureHeight)); |
|||
OwningGrid.AutoSizeColumn(column, cell.DesiredSize.Width); |
|||
column.ComputeLayoutRoundedWidth(totalDisplayWidth); |
|||
} |
|||
else if (!OwningGrid.UsesStarSizing) |
|||
{ |
|||
column.ComputeLayoutRoundedWidth(scrollingLeftEdge); |
|||
cell.Measure(new Size(column.LayoutRoundedWidth, measureHeight)); |
|||
} |
|||
|
|||
// We need to track the largest height in order to auto-size
|
|||
if (autoSizeHeight) |
|||
{ |
|||
DesiredHeight = Math.Max(DesiredHeight, cell.DesiredSize.Height); |
|||
} |
|||
} |
|||
|
|||
if (column.IsFrozen) |
|||
{ |
|||
frozenLeftEdge += column.ActualWidth; |
|||
} |
|||
scrollingLeftEdge += column.ActualWidth; |
|||
totalDisplayWidth += column.ActualWidth; |
|||
} |
|||
|
|||
// If we're using star sizing (and we're not waiting for an auto-column to finish growing)
|
|||
// then we will resize all the columns to fit the available space.
|
|||
if (OwningGrid.UsesStarSizing && !OwningGrid.AutoSizingColumns) |
|||
{ |
|||
double adjustment = OwningGrid.CellsWidth - totalDisplayWidth; |
|||
totalDisplayWidth += adjustment - OwningGrid.AdjustColumnWidths(0, adjustment, false); |
|||
|
|||
// Since we didn't know the final widths of the columns until we resized,
|
|||
// we waited until now to measure each cell
|
|||
double leftEdge = 0; |
|||
foreach (DataGridColumn column in OwningGrid.ColumnsInternal.GetVisibleColumns()) |
|||
{ |
|||
DataGridCell cell = OwningRow.Cells[column.Index]; |
|||
column.ComputeLayoutRoundedWidth(leftEdge); |
|||
cell.Measure(new Size(column.LayoutRoundedWidth, measureHeight)); |
|||
if (autoSizeHeight) |
|||
{ |
|||
DesiredHeight = Math.Max(DesiredHeight, cell.DesiredSize.Height); |
|||
} |
|||
leftEdge += column.ActualWidth; |
|||
} |
|||
} |
|||
|
|||
// Measure FillerCell, we're doing it unconditionally here because we don't know if we'll need the filler
|
|||
// column and we don't want to cause another Measure if we do
|
|||
OwningRow.FillerCell.Measure(new Size(double.PositiveInfinity, DesiredHeight)); |
|||
|
|||
OwningGrid.ColumnsInternal.EnsureVisibleEdgedColumnsWidth(); |
|||
return new Size(OwningGrid.ColumnsInternal.VisibleEdgedColumnsWidth, DesiredHeight); |
|||
} |
|||
|
|||
internal void Recycle() |
|||
{ |
|||
// Clear out the cached desired height so it is not reused for other rows
|
|||
DesiredHeight = 0; |
|||
} |
|||
|
|||
private bool ShouldDisplayCell(DataGridColumn column, double frozenLeftEdge, double scrollingLeftEdge) |
|||
{ |
|||
if (!column.IsVisible) |
|||
{ |
|||
return false; |
|||
} |
|||
|
|||
scrollingLeftEdge += OwningGrid.HorizontalAdjustment; |
|||
double leftEdge = column.IsFrozen ? frozenLeftEdge : scrollingLeftEdge; |
|||
double rightEdge = leftEdge + column.ActualWidth; |
|||
return |
|||
DoubleUtil.GreaterThan(rightEdge, 0) && |
|||
DoubleUtil.LessThanOrClose(leftEdge, OwningGrid.CellsWidth) && |
|||
DoubleUtil.GreaterThan(rightEdge, frozenLeftEdge); // scrolling column covered up by frozen column(s)
|
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,395 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Media; |
|||
using System; |
|||
using System.Diagnostics; |
|||
|
|||
namespace Avalonia.Controls.Primitives |
|||
{ |
|||
/// <summary>
|
|||
/// Used within the template of a <see cref="T:Avalonia.Controls.DataGrid" /> to specify the
|
|||
/// location in the control's visual tree where the column headers are to be added.
|
|||
/// </summary>
|
|||
public sealed class DataGridColumnHeadersPresenter : Panel |
|||
{ |
|||
private Control _dragIndicator; |
|||
private IControl _dropLocationIndicator; |
|||
|
|||
/// <summary>
|
|||
/// Tracks which column is currently being dragged.
|
|||
/// </summary>
|
|||
internal DataGridColumn DragColumn |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The current drag indicator control. This value is null if no column is being dragged.
|
|||
/// </summary>
|
|||
internal Control DragIndicator |
|||
{ |
|||
get |
|||
{ |
|||
return _dragIndicator; |
|||
} |
|||
set |
|||
{ |
|||
if (value != _dragIndicator) |
|||
{ |
|||
if (Children.Contains(_dragIndicator)) |
|||
{ |
|||
Children.Remove(_dragIndicator); |
|||
} |
|||
_dragIndicator = value; |
|||
if (_dragIndicator != null) |
|||
{ |
|||
Children.Add(_dragIndicator); |
|||
} |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The distance, in pixels, that the DragIndicator should be positioned away from the corresponding DragColumn.
|
|||
/// </summary>
|
|||
internal Double DragIndicatorOffset |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The drop location indicator control. This value is null if no column is being dragged.
|
|||
/// </summary>
|
|||
internal IControl DropLocationIndicator |
|||
{ |
|||
get |
|||
{ |
|||
return _dropLocationIndicator; |
|||
} |
|||
set |
|||
{ |
|||
if (value != _dropLocationIndicator) |
|||
{ |
|||
if (Children.Contains(_dropLocationIndicator)) |
|||
{ |
|||
Children.Remove(_dropLocationIndicator); |
|||
} |
|||
_dropLocationIndicator = value; |
|||
if (_dropLocationIndicator != null) |
|||
{ |
|||
Children.Add(_dropLocationIndicator); |
|||
} |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// The distance, in pixels, that the drop location indicator should be positioned away from the left edge
|
|||
/// of the ColumnsHeaderPresenter.
|
|||
/// </summary>
|
|||
internal double DropLocationIndicatorOffset |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
internal DataGrid OwningGrid |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Arranges the content of the <see cref="T:Avalonia.Controls.Primitives.DataGridColumnHeadersPresenter" />.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// The actual size used by the <see cref="T:Avalonia.Controls.Primitives.DataGridColumnHeadersPresenter" />.
|
|||
/// </returns>
|
|||
/// <param name="finalSize">
|
|||
/// The final area within the parent that this element should use to arrange itself and its children.
|
|||
/// </param>
|
|||
protected override Size ArrangeOverride(Size finalSize) |
|||
{ |
|||
if (OwningGrid == null) |
|||
{ |
|||
return base.ArrangeOverride(finalSize); |
|||
} |
|||
|
|||
if (OwningGrid.AutoSizingColumns) |
|||
{ |
|||
// When we initially load an auto-column, we have to wait for all the rows to be measured
|
|||
// before we know its final desired size. We need to trigger a new round of measures now
|
|||
// that the final sizes have been calculated.
|
|||
OwningGrid.AutoSizingColumns = false; |
|||
return base.ArrangeOverride(finalSize); |
|||
} |
|||
|
|||
double dragIndicatorLeftEdge = 0; |
|||
double frozenLeftEdge = 0; |
|||
double scrollingLeftEdge = -OwningGrid.HorizontalOffset; |
|||
foreach (DataGridColumn dataGridColumn in OwningGrid.ColumnsInternal.GetVisibleColumns()) |
|||
{ |
|||
DataGridColumnHeader columnHeader = dataGridColumn.HeaderCell; |
|||
Debug.Assert(columnHeader.OwningColumn == dataGridColumn); |
|||
|
|||
if (dataGridColumn.IsFrozen) |
|||
{ |
|||
columnHeader.Arrange(new Rect(frozenLeftEdge, 0, dataGridColumn.LayoutRoundedWidth, finalSize.Height)); |
|||
columnHeader.Clip = null; // The layout system could have clipped this becaues it's not aware of our render transform
|
|||
if (DragColumn == dataGridColumn && DragIndicator != null) |
|||
{ |
|||
dragIndicatorLeftEdge = frozenLeftEdge + DragIndicatorOffset; |
|||
} |
|||
frozenLeftEdge += dataGridColumn.ActualWidth; |
|||
} |
|||
else |
|||
{ |
|||
columnHeader.Arrange(new Rect(scrollingLeftEdge, 0, dataGridColumn.LayoutRoundedWidth, finalSize.Height)); |
|||
EnsureColumnHeaderClip(columnHeader, dataGridColumn.ActualWidth, finalSize.Height, frozenLeftEdge, scrollingLeftEdge); |
|||
if (DragColumn == dataGridColumn && DragIndicator != null) |
|||
{ |
|||
dragIndicatorLeftEdge = scrollingLeftEdge + DragIndicatorOffset; |
|||
} |
|||
} |
|||
scrollingLeftEdge += dataGridColumn.ActualWidth; |
|||
} |
|||
if (DragColumn != null) |
|||
{ |
|||
if (DragIndicator != null) |
|||
{ |
|||
EnsureColumnReorderingClip(DragIndicator, finalSize.Height, frozenLeftEdge, dragIndicatorLeftEdge); |
|||
|
|||
var height = DragIndicator.Bounds.Height; |
|||
if (height <= 0) |
|||
height = DragIndicator.DesiredSize.Height; |
|||
|
|||
DragIndicator.Arrange(new Rect(dragIndicatorLeftEdge, 0, DragIndicator.Bounds.Width, height)); |
|||
} |
|||
if (DropLocationIndicator != null) |
|||
{ |
|||
if (DropLocationIndicator is Control element) |
|||
{ |
|||
EnsureColumnReorderingClip(element, finalSize.Height, frozenLeftEdge, DropLocationIndicatorOffset); |
|||
} |
|||
|
|||
DropLocationIndicator.Arrange(new Rect(DropLocationIndicatorOffset, 0, DropLocationIndicator.Bounds.Width, DropLocationIndicator.Bounds.Height)); |
|||
} |
|||
} |
|||
|
|||
// Arrange filler
|
|||
OwningGrid.OnFillerColumnWidthNeeded(finalSize.Width); |
|||
DataGridFillerColumn fillerColumn = OwningGrid.ColumnsInternal.FillerColumn; |
|||
if (fillerColumn.FillerWidth > 0) |
|||
{ |
|||
fillerColumn.HeaderCell.IsVisible = true; |
|||
fillerColumn.HeaderCell.Arrange(new Rect(scrollingLeftEdge, 0, fillerColumn.FillerWidth, finalSize.Height)); |
|||
} |
|||
else |
|||
{ |
|||
fillerColumn.HeaderCell.IsVisible = false; |
|||
} |
|||
|
|||
// This needs to be updated after the filler column is configured
|
|||
DataGridColumn lastVisibleColumn = OwningGrid.ColumnsInternal.LastVisibleColumn; |
|||
if (lastVisibleColumn != null) |
|||
{ |
|||
lastVisibleColumn.HeaderCell.UpdateSeparatorVisibility(lastVisibleColumn); |
|||
} |
|||
return finalSize; |
|||
} |
|||
|
|||
private static void EnsureColumnHeaderClip(DataGridColumnHeader columnHeader, double width, double height, double frozenLeftEdge, double columnHeaderLeftEdge) |
|||
{ |
|||
// Clip the cell only if it's scrolled under frozen columns. Unfortunately, we need to clip in this case
|
|||
// because cells could be transparent
|
|||
if (frozenLeftEdge > columnHeaderLeftEdge) |
|||
{ |
|||
RectangleGeometry rg = new RectangleGeometry(); |
|||
double xClip = Math.Min(width, frozenLeftEdge - columnHeaderLeftEdge); |
|||
rg.Rect = new Rect(xClip, 0, width - xClip, height); |
|||
columnHeader.Clip = rg; |
|||
} |
|||
else |
|||
{ |
|||
columnHeader.Clip = null; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Clips the DragIndicator and DropLocationIndicator controls according to current ColumnHeaderPresenter constraints.
|
|||
/// </summary>
|
|||
/// <param name="control">The DragIndicator or DropLocationIndicator</param>
|
|||
/// <param name="height">The available height</param>
|
|||
/// <param name="frozenColumnsWidth">The width of the frozen column region</param>
|
|||
/// <param name="controlLeftEdge">The left edge of the control to clip</param>
|
|||
private void EnsureColumnReorderingClip(Control control, double height, double frozenColumnsWidth, double controlLeftEdge) |
|||
{ |
|||
double leftEdge = 0; |
|||
double rightEdge = OwningGrid.CellsWidth; |
|||
double width = control.Bounds.Width; |
|||
if (DragColumn.IsFrozen) |
|||
{ |
|||
// If we're dragging a frozen column, we want to clip the corresponding DragIndicator control when it goes
|
|||
// into the scrolling columns region, but not the DropLocationIndicator.
|
|||
if (control == DragIndicator) |
|||
{ |
|||
rightEdge = Math.Min(rightEdge, frozenColumnsWidth); |
|||
} |
|||
} |
|||
else if (OwningGrid.FrozenColumnCount > 0) |
|||
{ |
|||
// If we're dragging a scrolling column, we want to clip both the DragIndicator and the DropLocationIndicator
|
|||
// controls when they go into the frozen column range.
|
|||
leftEdge = frozenColumnsWidth; |
|||
} |
|||
RectangleGeometry rg = null; |
|||
if (leftEdge > controlLeftEdge) |
|||
{ |
|||
rg = new RectangleGeometry(); |
|||
double xClip = Math.Min(width, leftEdge - controlLeftEdge); |
|||
rg.Rect = new Rect(xClip, 0, width - xClip, height); |
|||
} |
|||
if (controlLeftEdge + width >= rightEdge) |
|||
{ |
|||
if (rg == null) |
|||
{ |
|||
rg = new RectangleGeometry(); |
|||
} |
|||
rg.Rect = new Rect(rg.Rect.X, rg.Rect.Y, Math.Max(0, rightEdge - controlLeftEdge - rg.Rect.X), height); |
|||
} |
|||
control.Clip = rg; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Measures the children of a <see cref="T:Avalonia.Controls.Primitives.DataGridColumnHeadersPresenter" /> to
|
|||
/// prepare for arranging them during the <see cref="M:System.Windows.FrameworkElement.ArrangeOverride(System.Windows.Size)" /> pass.
|
|||
/// </summary>
|
|||
/// <param name="availableSize">
|
|||
/// The available size that this element can give to child elements. Indicates an upper limit that child elements should not exceed.
|
|||
/// </param>
|
|||
/// <returns>
|
|||
/// The size that the <see cref="T:Avalonia.Controls.Primitives.DataGridColumnHeadersPresenter" /> determines it needs during layout, based on its calculations of child object allocated sizes.
|
|||
/// </returns>
|
|||
protected override Size MeasureOverride(Size availableSize) |
|||
{ |
|||
if (OwningGrid == null) |
|||
{ |
|||
return base.MeasureOverride(availableSize); |
|||
} |
|||
if (!OwningGrid.AreColumnHeadersVisible) |
|||
{ |
|||
return Size.Empty; |
|||
} |
|||
double height = OwningGrid.ColumnHeaderHeight; |
|||
bool autoSizeHeight; |
|||
if (double.IsNaN(height)) |
|||
{ |
|||
// No explicit height values were set so we can autosize
|
|||
height = 0; |
|||
autoSizeHeight = true; |
|||
} |
|||
else |
|||
{ |
|||
autoSizeHeight = false; |
|||
} |
|||
|
|||
double totalDisplayWidth = 0; |
|||
OwningGrid.ColumnsInternal.EnsureVisibleEdgedColumnsWidth(); |
|||
DataGridColumn lastVisibleColumn = OwningGrid.ColumnsInternal.LastVisibleColumn; |
|||
foreach (DataGridColumn column in OwningGrid.ColumnsInternal.GetVisibleColumns()) |
|||
{ |
|||
// Measure each column header
|
|||
bool autoGrowWidth = column.Width.IsAuto || column.Width.IsSizeToHeader; |
|||
DataGridColumnHeader columnHeader = column.HeaderCell; |
|||
if (column != lastVisibleColumn) |
|||
{ |
|||
columnHeader.UpdateSeparatorVisibility(lastVisibleColumn); |
|||
} |
|||
|
|||
// If we're not using star sizing or the current column can't be resized,
|
|||
// then just set the display width according to the column's desired width
|
|||
if (!OwningGrid.UsesStarSizing || (!column.ActualCanUserResize && !column.Width.IsStar)) |
|||
{ |
|||
// In the edge-case where we're given infinite width and we have star columns, the
|
|||
// star columns grow to their predefined limit of 10,000 (or their MaxWidth)
|
|||
double newDisplayWidth = column.Width.IsStar ? |
|||
Math.Min(column.ActualMaxWidth, DataGrid.DATAGRID_maximumStarColumnWidth) : |
|||
Math.Max(column.ActualMinWidth, Math.Min(column.ActualMaxWidth, column.Width.DesiredValue)); |
|||
column.SetWidthDisplayValue(newDisplayWidth); |
|||
} |
|||
|
|||
// If we're auto-growing the column based on the header content, we want to measure it at its maximum value
|
|||
if (autoGrowWidth) |
|||
{ |
|||
columnHeader.Measure(new Size(column.ActualMaxWidth, double.PositiveInfinity)); |
|||
OwningGrid.AutoSizeColumn(column, columnHeader.DesiredSize.Width); |
|||
column.ComputeLayoutRoundedWidth(totalDisplayWidth); |
|||
} |
|||
else if (!OwningGrid.UsesStarSizing) |
|||
{ |
|||
column.ComputeLayoutRoundedWidth(totalDisplayWidth); |
|||
columnHeader.Measure(new Size(column.LayoutRoundedWidth, double.PositiveInfinity)); |
|||
} |
|||
|
|||
// We need to track the largest height in order to auto-size
|
|||
if (autoSizeHeight) |
|||
{ |
|||
height = Math.Max(height, columnHeader.DesiredSize.Height); |
|||
} |
|||
totalDisplayWidth += column.ActualWidth; |
|||
} |
|||
|
|||
// If we're using star sizing (and we're not waiting for an auto-column to finish growing)
|
|||
// then we will resize all the columns to fit the available space.
|
|||
if (OwningGrid.UsesStarSizing && !OwningGrid.AutoSizingColumns) |
|||
{ |
|||
double adjustment = Double.IsPositiveInfinity(availableSize.Width) ? OwningGrid.CellsWidth : availableSize.Width - totalDisplayWidth; |
|||
totalDisplayWidth += adjustment - OwningGrid.AdjustColumnWidths(0, adjustment, false); |
|||
|
|||
// Since we didn't know the final widths of the columns until we resized,
|
|||
// we waited until now to measure each header
|
|||
double leftEdge = 0; |
|||
foreach (DataGridColumn column in OwningGrid.ColumnsInternal.GetVisibleColumns()) |
|||
{ |
|||
column.ComputeLayoutRoundedWidth(leftEdge); |
|||
column.HeaderCell.Measure(new Size(column.LayoutRoundedWidth, double.PositiveInfinity)); |
|||
if (autoSizeHeight) |
|||
{ |
|||
height = Math.Max(height, column.HeaderCell.DesiredSize.Height); |
|||
} |
|||
leftEdge += column.ActualWidth; |
|||
} |
|||
} |
|||
|
|||
// Add the filler column if it's not represented. We won't know whether we need it or not until Arrange
|
|||
DataGridFillerColumn fillerColumn = OwningGrid.ColumnsInternal.FillerColumn; |
|||
if (!fillerColumn.IsRepresented) |
|||
{ |
|||
Debug.Assert(!Children.Contains(fillerColumn.HeaderCell)); |
|||
fillerColumn.HeaderCell.AreSeparatorsVisible = false; |
|||
Children.Insert(OwningGrid.ColumnsInternal.Count, fillerColumn.HeaderCell); |
|||
fillerColumn.IsRepresented = true; |
|||
// Optimize for the case where we don't need the filler cell
|
|||
fillerColumn.HeaderCell.IsVisible = false; |
|||
} |
|||
fillerColumn.HeaderCell.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity)); |
|||
|
|||
if (DragIndicator != null) |
|||
{ |
|||
DragIndicator.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity)); |
|||
} |
|||
if (DropLocationIndicator != null) |
|||
{ |
|||
DropLocationIndicator.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity)); |
|||
} |
|||
|
|||
OwningGrid.ColumnsInternal.EnsureVisibleEdgedColumnsWidth(); |
|||
return new Size(OwningGrid.ColumnsInternal.VisibleEdgedColumnsWidth, height); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,134 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Collections.Generic; |
|||
using System.Text; |
|||
using Avalonia.Media; |
|||
|
|||
namespace Avalonia.Controls.Primitives |
|||
{ |
|||
/// <summary>
|
|||
/// Used within the template of a <see cref="T:Avalonia.Controls.DataGrid" /> to specify the location in the control's visual tree
|
|||
/// where the row details are to be added.
|
|||
/// </summary>
|
|||
public sealed class DataGridDetailsPresenter : Panel |
|||
{ |
|||
public static readonly StyledProperty<double> ContentHeightProperty = |
|||
AvaloniaProperty.Register<DataGridDetailsPresenter, double>(nameof(ContentHeight)); |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the height of the content.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// The height of the content.
|
|||
/// </returns>
|
|||
public double ContentHeight |
|||
{ |
|||
get { return GetValue(ContentHeightProperty); } |
|||
set { SetValue(ContentHeightProperty, value); } |
|||
} |
|||
|
|||
internal DataGridRow OwningRow |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
private DataGrid OwningGrid => OwningRow?.OwningGrid; |
|||
|
|||
public DataGridDetailsPresenter() |
|||
{ |
|||
AffectsMeasure<DataGridDetailsPresenter>(ContentHeightProperty); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Arranges the content of the <see cref="T:Avalonia.Controls.Primitives.DataGridDetailsPresenter" />.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// The actual size used by the <see cref="T:Avalonia.Controls.Primitives.DataGridDetailsPresenter" />.
|
|||
/// </returns>
|
|||
/// <param name="finalSize">
|
|||
/// The final area within the parent that this element should use to arrange itself and its children.
|
|||
/// </param>
|
|||
protected override Size ArrangeOverride(Size finalSize) |
|||
{ |
|||
if (OwningGrid == null) |
|||
{ |
|||
return base.ArrangeOverride(finalSize); |
|||
} |
|||
double rowGroupSpacerWidth = OwningGrid.ColumnsInternal.RowGroupSpacerColumn.Width.Value; |
|||
double leftEdge = rowGroupSpacerWidth; |
|||
double xClip = OwningGrid.AreRowGroupHeadersFrozen ? rowGroupSpacerWidth : 0; |
|||
double width; |
|||
if (OwningGrid.AreRowDetailsFrozen) |
|||
{ |
|||
leftEdge += OwningGrid.HorizontalOffset; |
|||
width = OwningGrid.CellsWidth; |
|||
} |
|||
else |
|||
{ |
|||
xClip += OwningGrid.HorizontalOffset; |
|||
width = Math.Max(OwningGrid.CellsWidth, OwningGrid.ColumnsInternal.VisibleEdgedColumnsWidth); |
|||
} |
|||
// Details should not extend through the indented area
|
|||
width -= rowGroupSpacerWidth; |
|||
double height = Math.Max(0, double.IsNaN(ContentHeight) ? 0 : ContentHeight); |
|||
|
|||
foreach (Control child in Children) |
|||
{ |
|||
child.Arrange(new Rect(leftEdge, 0, width, height)); |
|||
} |
|||
|
|||
if (OwningGrid.AreRowDetailsFrozen) |
|||
{ |
|||
// Frozen Details should not be clipped, similar to frozen cells
|
|||
Clip = null; |
|||
} |
|||
else |
|||
{ |
|||
// Clip so Details doesn't obstruct elements to the left (the RowHeader by default) as we scroll to the right
|
|||
Clip = new RectangleGeometry |
|||
{ |
|||
Rect = new Rect(xClip, 0, Math.Max(0, width - xClip + rowGroupSpacerWidth), height) |
|||
}; |
|||
} |
|||
|
|||
return finalSize; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Measures the children of a <see cref="T:Avalonia.Controls.Primitives.DataGridDetailsPresenter" /> to
|
|||
/// prepare for arranging them during the <see cref="M:System.Windows.FrameworkElement.ArrangeOverride(System.Windows.Size)" /> pass.
|
|||
/// </summary>
|
|||
/// <param name="availableSize">
|
|||
/// The available size that this element can give to child elements. Indicates an upper limit that child elements should not exceed.
|
|||
/// </param>
|
|||
/// <returns>
|
|||
/// The size that the <see cref="T:Avalonia.Controls.Primitives.DataGridDetailsPresenter" /> determines it needs during layout, based on its calculations of child object allocated sizes.
|
|||
/// </returns>
|
|||
protected override Size MeasureOverride(Size availableSize) |
|||
{ |
|||
if (OwningGrid == null || Children.Count == 0) |
|||
{ |
|||
return Size.Empty; |
|||
} |
|||
|
|||
double desiredWidth = OwningGrid.AreRowDetailsFrozen ? |
|||
OwningGrid.CellsWidth : |
|||
Math.Max(OwningGrid.CellsWidth, OwningGrid.ColumnsInternal.VisibleEdgedColumnsWidth); |
|||
|
|||
desiredWidth -= OwningGrid.ColumnsInternal.RowGroupSpacerColumn.Width.Value; |
|||
|
|||
foreach (Control child in Children) |
|||
{ |
|||
child.Measure(new Size(desiredWidth, double.PositiveInfinity)); |
|||
} |
|||
|
|||
double desiredHeight = Math.Max(0, double.IsNaN(ContentHeight) ? 0 : ContentHeight); |
|||
|
|||
return new Size(desiredWidth, desiredHeight); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,45 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Collections.Generic; |
|||
using System.Text; |
|||
|
|||
namespace Avalonia.Controls.Primitives |
|||
{ |
|||
/// <summary>
|
|||
/// Represents a non-scrollable grid that contains <see cref="T:Avalonia.Controls.DataGrid" /> row headers.
|
|||
/// </summary>
|
|||
public class DataGridFrozenGrid : Grid |
|||
{ |
|||
public static readonly AvaloniaProperty<bool> IsFrozenProperty = |
|||
AvaloniaProperty.RegisterAttached<DataGridFrozenGrid, Control, bool>("IsFrozen"); |
|||
|
|||
/// <summary>
|
|||
/// Gets a value that indicates whether the grid is frozen.
|
|||
/// </summary>
|
|||
/// <param name="element">
|
|||
/// The object to get the <see cref="P:Avalonia.Controls.Primitives.DataGridFrozenGrid.IsFrozen" /> value from.
|
|||
/// </param>
|
|||
/// <returns>true if the grid is frozen; otherwise, false. The default is true.</returns>
|
|||
public static bool GetIsFrozen(Control element) |
|||
{ |
|||
Contract.Requires<ArgumentNullException>(element != null); |
|||
return element.GetValue(IsFrozenProperty); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Sets a value that indicates whether the grid is frozen.
|
|||
/// </summary>
|
|||
/// <param name="element">The object to set the <see cref="P:Avalonia.Controls.Primitives.DataGridFrozenGrid.IsFrozen" /> value on.</param>
|
|||
/// <param name="value">true if <paramref name="element" /> is frozen; otherwise, false.</param>
|
|||
/// <exception cref="T:System.ArgumentNullException"><paramref name="element" /> is null.</exception>
|
|||
public static void SetIsFrozen(Control element, bool value) |
|||
{ |
|||
Contract.Requires<ArgumentNullException>(element != null); |
|||
element.SetValue(IsFrozenProperty, value); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,182 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Media; |
|||
using System; |
|||
using System.Diagnostics; |
|||
|
|||
namespace Avalonia.Controls.Primitives |
|||
{ |
|||
/// <summary>
|
|||
/// Used within the template of a <see cref="T:Avalonia.Controls.DataGrid" /> to specify the
|
|||
/// location in the control's visual tree where the rows are to be added.
|
|||
/// </summary>
|
|||
public sealed class DataGridRowsPresenter : Panel |
|||
{ |
|||
internal DataGrid OwningGrid |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
private double _measureHeightOffset = 0; |
|||
private double CalculateEstimatedAvailableHeight(Size availableSize) |
|||
{ |
|||
if(!Double.IsPositiveInfinity(availableSize.Height)) |
|||
{ |
|||
return availableSize.Height + _measureHeightOffset; |
|||
} |
|||
else |
|||
{ |
|||
return availableSize.Height; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Arranges the content of the <see cref="T:Avalonia.Controls.Primitives.DataGridRowsPresenter" />.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// The actual size used by the <see cref="T:Avalonia.Controls.Primitives.DataGridRowsPresenter" />.
|
|||
/// </returns>
|
|||
/// <param name="finalSize">
|
|||
/// The final area within the parent that this element should use to arrange itself and its children.
|
|||
/// </param>
|
|||
protected override Size ArrangeOverride(Size finalSize) |
|||
{ |
|||
if (finalSize.Height == 0 || OwningGrid == null) |
|||
{ |
|||
return base.ArrangeOverride(finalSize); |
|||
} |
|||
|
|||
if(OwningGrid.RowsPresenterAvailableSize.HasValue) |
|||
{ |
|||
var availableHeight = OwningGrid.RowsPresenterAvailableSize.Value.Height; |
|||
if(!Double.IsPositiveInfinity(availableHeight)) |
|||
{ |
|||
_measureHeightOffset = finalSize.Height - availableHeight; |
|||
OwningGrid.RowsPresenterEstimatedAvailableHeight = finalSize.Height; |
|||
} |
|||
} |
|||
|
|||
OwningGrid.OnFillerColumnWidthNeeded(finalSize.Width); |
|||
|
|||
double rowDesiredWidth = OwningGrid.ColumnsInternal.VisibleEdgedColumnsWidth + OwningGrid.ColumnsInternal.FillerColumn.FillerWidth; |
|||
double topEdge = -OwningGrid.NegVerticalOffset; |
|||
foreach (Control element in OwningGrid.DisplayData.GetScrollingElements()) |
|||
{ |
|||
if (element is DataGridRow row) |
|||
{ |
|||
Debug.Assert(row.Index != -1); // A displayed row should always have its index
|
|||
|
|||
// Visibility for all filler cells needs to be set in one place. Setting it individually in
|
|||
// each CellsPresenter causes an NxN layout cycle (see DevDiv Bugs 211557)
|
|||
row.EnsureFillerVisibility(); |
|||
row.Arrange(new Rect(-OwningGrid.HorizontalOffset, topEdge, rowDesiredWidth, element.DesiredSize.Height)); |
|||
} |
|||
else if (element is DataGridRowGroupHeader groupHeader) |
|||
{ |
|||
double leftEdge = (OwningGrid.AreRowGroupHeadersFrozen) ? 0 : -OwningGrid.HorizontalOffset; |
|||
groupHeader.Arrange(new Rect(leftEdge, topEdge, rowDesiredWidth - leftEdge, element.DesiredSize.Height)); |
|||
} |
|||
|
|||
topEdge += element.DesiredSize.Height; |
|||
} |
|||
|
|||
double finalHeight = Math.Max(topEdge + OwningGrid.NegVerticalOffset, finalSize.Height); |
|||
|
|||
// Clip the RowsPresenter so rows cannot overlap other elements in certain styling scenarios
|
|||
var rg = new RectangleGeometry |
|||
{ |
|||
Rect = new Rect(0, 0, finalSize.Width, finalHeight) |
|||
}; |
|||
Clip = rg; |
|||
|
|||
return new Size(finalSize.Width, finalHeight); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Measures the children of a <see cref="T:Avalonia.Controls.Primitives.DataGridRowsPresenter" /> to
|
|||
/// prepare for arranging them during the <see cref="M:System.Windows.FrameworkElement.ArrangeOverride(System.Windows.Size)" /> pass.
|
|||
/// </summary>
|
|||
/// <param name="availableSize">
|
|||
/// The available size that this element can give to child elements. Indicates an upper limit that child elements should not exceed.
|
|||
/// </param>
|
|||
/// <returns>
|
|||
/// The size that the <see cref="T:Avalonia.Controls.Primitives.DataGridRowsPresenter" /> determines it needs during layout, based on its calculations of child object allocated sizes.
|
|||
/// </returns>
|
|||
protected override Size MeasureOverride(Size availableSize) |
|||
{ |
|||
if (availableSize.Height == 0 || OwningGrid == null) |
|||
{ |
|||
return base.MeasureOverride(availableSize); |
|||
} |
|||
|
|||
// If the Width of our RowsPresenter changed then we need to invalidate our rows
|
|||
bool invalidateRows = (!OwningGrid.RowsPresenterAvailableSize.HasValue || availableSize.Width != OwningGrid.RowsPresenterAvailableSize.Value.Width) |
|||
&& !double.IsInfinity(availableSize.Width); |
|||
|
|||
// The DataGrid uses the RowsPresenter available size in order to autogrow
|
|||
// and calculate the scrollbars
|
|||
OwningGrid.RowsPresenterAvailableSize = availableSize; |
|||
OwningGrid.RowsPresenterEstimatedAvailableHeight = CalculateEstimatedAvailableHeight(availableSize); |
|||
|
|||
OwningGrid.OnRowsMeasure(); |
|||
|
|||
double totalHeight = -OwningGrid.NegVerticalOffset; |
|||
double totalCellsWidth = OwningGrid.ColumnsInternal.VisibleEdgedColumnsWidth; |
|||
|
|||
double headerWidth = 0; |
|||
foreach (Control element in OwningGrid.DisplayData.GetScrollingElements()) |
|||
{ |
|||
DataGridRow row = element as DataGridRow; |
|||
if (row != null) |
|||
{ |
|||
if (invalidateRows) |
|||
{ |
|||
row.InvalidateMeasure(); |
|||
} |
|||
} |
|||
|
|||
element.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity)); |
|||
|
|||
if (row != null && row.HeaderCell != null) |
|||
{ |
|||
headerWidth = Math.Max(headerWidth, row.HeaderCell.DesiredSize.Width); |
|||
} |
|||
else if (element is DataGridRowGroupHeader groupHeader && groupHeader.HeaderCell != null) |
|||
{ |
|||
headerWidth = Math.Max(headerWidth, groupHeader.HeaderCell.DesiredSize.Width); |
|||
} |
|||
|
|||
totalHeight += element.DesiredSize.Height; |
|||
} |
|||
|
|||
OwningGrid.RowHeadersDesiredWidth = headerWidth; |
|||
// Could be positive infinity depending on the DataGrid's bounds
|
|||
OwningGrid.AvailableSlotElementRoom = availableSize.Height - totalHeight; |
|||
|
|||
totalHeight = Math.Max(0, totalHeight); |
|||
|
|||
return new Size(totalCellsWidth + headerWidth, totalHeight); |
|||
} |
|||
|
|||
#if DEBUG
|
|||
internal void PrintChildren() |
|||
{ |
|||
foreach (Control element in Children) |
|||
{ |
|||
if (element is DataGridRow row) |
|||
{ |
|||
Debug.WriteLine(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Slot: {0} Row: {1} Visibility: {2} ", row.Slot, row.Index, row.IsVisible)); |
|||
} |
|||
else if (element is DataGridRowGroupHeader groupHeader) |
|||
{ |
|||
Debug.WriteLine(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Slot: {0} GroupHeader: {1} Visibility: {2}", groupHeader.RowGroupInfo.Slot, groupHeader.RowGroupInfo.CollectionViewGroup.Key, groupHeader.IsVisible)); |
|||
} |
|||
} |
|||
} |
|||
#endif
|
|||
} |
|||
} |
|||
@ -0,0 +1,14 @@ |
|||
// Copyright (c) The Avalonia Project. All rights reserved.
|
|||
// Licensed under the MIT license. See licence.md file in the project root for full license information.
|
|||
|
|||
using System.Reflection; |
|||
using System.Runtime.CompilerServices; |
|||
using Avalonia.Metadata; |
|||
|
|||
[assembly: InternalsVisibleTo("Avalonia.Controls.UnitTests")] |
|||
[assembly: InternalsVisibleTo("Avalonia.DesignerSupport")] |
|||
|
|||
[assembly: XmlnsDefinition("https://github.com/avaloniaui", "Avalonia")] |
|||
[assembly: XmlnsDefinition("https://github.com/avaloniaui", "Avalonia.Controls")] |
|||
[assembly: XmlnsDefinition("https://github.com/avaloniaui", "Avalonia.Controls.Primitives")] |
|||
[assembly: XmlnsDefinition("https://github.com/avaloniaui", "Avalonia.Controls.Collections")] |
|||
@ -0,0 +1,69 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Collections.Generic; |
|||
using System.Text; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
internal class Range<T> |
|||
{ |
|||
public Range(int lowerBound, int upperBound, T value) |
|||
{ |
|||
LowerBound = lowerBound; |
|||
UpperBound = upperBound; |
|||
Value = value; |
|||
} |
|||
|
|||
public int Count |
|||
{ |
|||
get |
|||
{ |
|||
return UpperBound - LowerBound + 1; |
|||
} |
|||
} |
|||
|
|||
public int LowerBound |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public int UpperBound |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public T Value |
|||
{ |
|||
get; |
|||
set; |
|||
} |
|||
|
|||
public bool ContainsIndex(int index) |
|||
{ |
|||
return (LowerBound <= index) && (UpperBound >= index); |
|||
} |
|||
|
|||
public bool ContainsValue(object value) |
|||
{ |
|||
if (Value == null) |
|||
{ |
|||
return value == null; |
|||
} |
|||
else |
|||
{ |
|||
return Value.Equals(value); |
|||
} |
|||
} |
|||
|
|||
public Range<T> Copy() |
|||
{ |
|||
return new Range<T>(LowerBound, UpperBound, Value); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,233 @@ |
|||
<Styles xmlns="https://github.com/avaloniaui"> |
|||
<!--TODO: Validation and Focus--> |
|||
<Style Selector="DataGridCell"> |
|||
<Setter Property="Background" Value="Transparent"/> |
|||
<Setter Property="HorizontalContentAlignment" Value="Stretch" /> |
|||
<Setter Property="VerticalContentAlignment" Value="Stretch" /> |
|||
<Setter Property="Template"> |
|||
<ControlTemplate> |
|||
<Grid ColumnDefinitions="*,Auto" |
|||
Background="{TemplateBinding Background}"> |
|||
<ContentPresenter ContentTemplate="{TemplateBinding ContentTemplate}" |
|||
Content="{TemplateBinding Content}" |
|||
Margin="{TemplateBinding Padding}" |
|||
TextBlock.Foreground="{TemplateBinding Foreground}" |
|||
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" |
|||
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/> |
|||
|
|||
<Rectangle Name="PART_RightGridLine" |
|||
Grid.Column="1" |
|||
VerticalAlignment="Stretch" |
|||
Width="1" /> |
|||
</Grid> |
|||
</ControlTemplate> |
|||
</Setter> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridColumnHeader"> |
|||
<Setter Property="Foreground" Value="{DynamicResource ThemeForegroundBrush}" /> |
|||
<Setter Property="HorizontalContentAlignment" Value="Left" /> |
|||
<Setter Property="VerticalContentAlignment" Value="Center" /> |
|||
<Setter Property="SeparatorBrush" Value="{DynamicResource ThemeControlDarkBrush}" /> |
|||
<Setter Property="Padding" Value="4" /> |
|||
<Setter Property="Background" Value="{DynamicResource ThemeControlMidBrush}"/> |
|||
|
|||
<Setter Property="Template"> |
|||
<ControlTemplate> |
|||
<Grid ColumnDefinitions="*,Auto" |
|||
Background="{TemplateBinding Background}"> |
|||
|
|||
<Grid ColumnDefinitions="*,Auto" |
|||
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" |
|||
VerticalAlignment="{TemplateBinding VerticalContentAlignment}" |
|||
Margin="{TemplateBinding Padding}"> |
|||
<ContentPresenter Content="{TemplateBinding Content}"/> |
|||
|
|||
<Path Name="SortIcon" |
|||
Grid.Column="1" |
|||
Fill="#FF444444" |
|||
HorizontalAlignment="Left" |
|||
VerticalAlignment="Center" |
|||
Stretch="Uniform" |
|||
Width="8" |
|||
Margin="4,0,0,0" |
|||
Data="F1 M -5.215,6.099L 5.215,6.099L 0,0L -5.215,6.099 Z "/> |
|||
|
|||
</Grid> |
|||
|
|||
<Rectangle Name="VerticalSeparator" |
|||
Grid.Column="1" Width="1" |
|||
VerticalAlignment="Stretch" |
|||
Fill="{TemplateBinding SeparatorBrush}" |
|||
IsVisible="{TemplateBinding AreSeparatorsVisible}" /> |
|||
|
|||
</Grid> |
|||
</ControlTemplate> |
|||
</Setter> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridColumnHeader:dragIndicator"> |
|||
<Setter Property="Opacity" Value="0.5"/> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridColumnHeader /template/ Path#SortIcon"> |
|||
<Setter Property="IsVisible" Value="False"/> |
|||
<Setter Property="RenderTransform"> |
|||
<Setter.Value> |
|||
<ScaleTransform ScaleX="0.9" ScaleY="0.9" /> |
|||
</Setter.Value> |
|||
</Setter> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridColumnHeader:sortascending /template/ Path#SortIcon"> |
|||
<Setter Property="IsVisible" Value="True"/> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridColumnHeader:sortdescending /template/ Path#SortIcon"> |
|||
<Setter Property="IsVisible" Value="True"/> |
|||
<Setter Property="RenderTransform"> |
|||
<Setter.Value> |
|||
<ScaleTransform ScaleX="0.9" ScaleY="-0.9" /> |
|||
</Setter.Value> |
|||
</Setter> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridRow"> |
|||
<Setter Property="Template"> |
|||
<ControlTemplate> |
|||
<DataGridFrozenGrid Name="PART_Root" |
|||
RowDefinitions="*,Auto,Auto" |
|||
ColumnDefinitions="Auto,*"> |
|||
|
|||
<Rectangle Name="BackgroundRectangle" Grid.RowSpan="2" Grid.ColumnSpan="2"/> |
|||
|
|||
<DataGridRowHeader Grid.RowSpan="3" Name="PART_RowHeader" DataGridFrozenGrid.IsFrozen="True" /> |
|||
<DataGridCellsPresenter Grid.Column="1" Name="PART_CellsPresenter" DataGridFrozenGrid.IsFrozen="True" /> |
|||
<DataGridDetailsPresenter Grid.Row="1" Grid.Column="1" Name="PART_DetailsPresenter"/> |
|||
<Rectangle Grid.Row="2" Grid.Column="1" Name="PART_BottomGridLine" HorizontalAlignment="Stretch" Height="1" /> |
|||
|
|||
</DataGridFrozenGrid> |
|||
</ControlTemplate> |
|||
</Setter> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridRow /template/ Rectangle#BackgroundRectangle"> |
|||
<Setter Property="IsVisible" Value="False"/> |
|||
<Setter Property="Fill" Value="#FFBADDE9" /> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridRow:pointerover /template/ Rectangle#BackgroundRectangle"> |
|||
<Setter Property="IsVisible" Value="True"/> |
|||
<Setter Property="Opacity" Value="0.5"/> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridRow:selected /template/ Rectangle#BackgroundRectangle"> |
|||
<Setter Property="IsVisible" Value="True"/> |
|||
<Setter Property="Opacity" Value="1"/> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridRowHeader"> |
|||
<Setter Property="Template"> |
|||
<ControlTemplate> |
|||
<Grid |
|||
RowDefinitions="*,*,Auto" |
|||
ColumnDefinitions="Auto,*"> |
|||
|
|||
</Grid> |
|||
</ControlTemplate> |
|||
</Setter> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridRowGroupHeader"> |
|||
<Setter Property="Background" Value="#FFE4E8EA" /> |
|||
<Setter Property="Height" Value="20"/> |
|||
<Setter Property="Template"> |
|||
<ControlTemplate> |
|||
<DataGridFrozenGrid Name="Root" |
|||
Background="{TemplateBinding Background}" |
|||
ColumnDefinitions="Auto,Auto,Auto,Auto" |
|||
RowDefinitions="Auto,*,Auto"> |
|||
|
|||
<Rectangle Grid.Column="1" Grid.ColumnSpan="5" Fill="#FFFFFFFF" Height="1"/> |
|||
<Rectangle Grid.Column="1" Grid.Row="1" Name="IndentSpacer" /> |
|||
<ToggleButton Grid.Column="2" Grid.Row="1" Name="ExpanderButton" Margin="2,0,0,0"/> |
|||
|
|||
<StackPanel Grid.Column="3" Grid.Row="1" Orientation="Horizontal" VerticalAlignment="Center" Margin="0,1,0,1"> |
|||
<TextBlock Name="PropertyNameElement" Margin="4,0,0,0" IsVisible="{TemplateBinding IsPropertyNameVisible}"/> |
|||
<TextBlock Margin="4,0,0,0" Text="{Binding Key}" /> |
|||
<TextBlock Name="ItemCountElement" Margin="4,0,0,0" IsVisible="{TemplateBinding IsItemCountVisible}"/> |
|||
</StackPanel> |
|||
|
|||
<DataGridRowHeader Name="RowHeader" Grid.RowSpan="3" DataGridFrozenGrid.IsFrozen="True"/> |
|||
|
|||
</DataGridFrozenGrid> |
|||
</ControlTemplate> |
|||
</Setter> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridRowGroupHeader /template/ ToggleButton#ExpanderButton"> |
|||
<Setter Property="Template"> |
|||
<ControlTemplate> |
|||
<Border Grid.Column="0" Width="20" Height="20" Background="Transparent" HorizontalAlignment="Center" VerticalAlignment="Center"> |
|||
<Path Fill="Black" |
|||
HorizontalAlignment="Center" |
|||
VerticalAlignment="Center" |
|||
Data="M 0 2 L 4 6 L 0 10 Z" /> |
|||
</Border> |
|||
</ControlTemplate> |
|||
</Setter> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGridRowGroupHeader /template/ ToggleButton#ExpanderButton:checked /template/ Path"> |
|||
<Setter Property="RenderTransform"> |
|||
<RotateTransform Angle="90" /> |
|||
</Setter> |
|||
</Style> |
|||
|
|||
<Style Selector="DataGrid"> |
|||
<Setter Property="RowBackground" Value="{DynamicResource ThemeAccentBrush4}" /> |
|||
<Setter Property="AlternatingRowBackground" Value="#00FFFFFF" /> |
|||
<Setter Property="Background" Value="{DynamicResource ThemeBackgroundBrush}" /> |
|||
<Setter Property="HeadersVisibility" Value="Column" /> |
|||
<Setter Property="HorizontalScrollBarVisibility" Value="Auto" /> |
|||
<Setter Property="VerticalScrollBarVisibility" Value="Auto" /> |
|||
<Setter Property="SelectionMode" Value="Extended" /> |
|||
<Setter Property="GridLinesVisibility" Value="Vertical" /> |
|||
<Setter Property="HorizontalGridLinesBrush" Value="{DynamicResource ThemeBorderLightBrush}" /> |
|||
<Setter Property="VerticalGridLinesBrush" Value="{DynamicResource ThemeBorderLightBrush}" /> |
|||
<Setter Property="HeadersVisibility" Value="Column" /> |
|||
<Setter Property="BorderBrush" Value="{DynamicResource ThemeBorderDarkBrush}"/> |
|||
<Setter Property="BorderThickness" Value="{DynamicResource ThemeBorderThickness}" /> |
|||
<Setter Property="DropLocationIndicatorTemplate"> |
|||
<Template> |
|||
<Rectangle Fill="#FF3F4346" Width="2"/> |
|||
</Template> |
|||
</Setter> |
|||
<Setter Property="Template"> |
|||
<ControlTemplate> |
|||
<Border BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}"> |
|||
<Grid |
|||
RowDefinitions="Auto,*,Auto,Auto" |
|||
ColumnDefinitions="Auto,*,Auto"> |
|||
|
|||
<DataGridColumnHeader Name="PART_TopLeftCornerHeader" Width="22" /> |
|||
<DataGridColumnHeadersPresenter Name="PART_ColumnHeadersPresenter" Grid.Column="1"/> |
|||
<DataGridColumnHeader Name="PART_TopRightCornerHeader" Grid.Column="2"/> |
|||
<Rectangle Name="PART_ColumnHeadersAndRowsSeparator" Grid.ColumnSpan="3" VerticalAlignment="Bottom" StrokeThickness="1" Height="1" Fill="#FFC9CACA"/> |
|||
|
|||
<DataGridRowsPresenter Name="PART_RowsPresenter" Grid.ColumnSpan="2" Grid.Row="1" /> |
|||
<Rectangle Name="BottomRightCorner" Fill="#FFE9EEF4" Grid.Column="2" Grid.Row="2" /> |
|||
<Rectangle Name="BottomLeftCorner" Fill="#FFE9EEF4" Grid.Row="2" Grid.ColumnSpan="2" /> |
|||
<ScrollBar Name="PART_VerticalScrollbar" Orientation="Vertical" Grid.Column="2" Grid.Row="1" Width="18" Margin="0,-1,-1,-1"/> |
|||
|
|||
<Grid Grid.Column="1" Grid.Row="2" |
|||
ColumnDefinitions="Auto,*"> |
|||
<Rectangle Name="PART_FrozenColumnScrollBarSpacer" /> |
|||
<ScrollBar Name="PART_HorizontalScrollbar" Grid.Column="1" Orientation="Horizontal" Height="18" Margin="-1,0,-1,-1"/> |
|||
</Grid> |
|||
</Grid> |
|||
</Border> |
|||
</ControlTemplate> |
|||
</Setter> |
|||
</Style> |
|||
</Styles> |
|||
@ -0,0 +1,160 @@ |
|||
using Avalonia.Data; |
|||
using Avalonia.Reactive; |
|||
using System; |
|||
using System.ComponentModel.DataAnnotations; |
|||
using System.Collections.Generic; |
|||
using System.Reactive.Subjects; |
|||
using System.Text; |
|||
|
|||
namespace Avalonia.Controls.Utils |
|||
{ |
|||
public interface ICellEditBinding |
|||
{ |
|||
bool IsValid { get; } |
|||
IEnumerable<Exception> ValidationErrors { get; } |
|||
IObservable<bool> ValidationChanged { get; } |
|||
bool CommitEdit(); |
|||
} |
|||
|
|||
internal class CellEditBinding : ICellEditBinding |
|||
{ |
|||
private readonly Subject<bool> _changedSubject = new Subject<bool>(); |
|||
private readonly List<Exception> _validationErrors = new List<Exception>(); |
|||
private readonly SubjectWrapper _inner; |
|||
|
|||
public bool IsValid => _validationErrors.Count <= 0; |
|||
public IEnumerable<Exception> ValidationErrors => _validationErrors; |
|||
public IObservable<bool> ValidationChanged => _changedSubject; |
|||
public ISubject<object> InternalSubject => _inner; |
|||
|
|||
public CellEditBinding(ISubject<object> bindingSourceSubject) |
|||
{ |
|||
_inner = new SubjectWrapper(bindingSourceSubject, this); |
|||
} |
|||
|
|||
private void AlterValidationErrors(Action<List<Exception>> action) |
|||
{ |
|||
var wasValid = IsValid; |
|||
action(_validationErrors); |
|||
var isValid = IsValid; |
|||
|
|||
if (!isValid || !wasValid) |
|||
{ |
|||
_changedSubject.OnNext(isValid); |
|||
} |
|||
} |
|||
|
|||
public bool CommitEdit() |
|||
{ |
|||
_inner.CommitEdit(); |
|||
return IsValid; |
|||
} |
|||
|
|||
class SubjectWrapper : LightweightObservableBase<object>, ISubject<object>, IDisposable |
|||
{ |
|||
private readonly ISubject<object> _sourceSubject; |
|||
private readonly CellEditBinding _editBinding; |
|||
private IDisposable _subscription; |
|||
private object _controlValue; |
|||
private bool _isControlValueSet = false; |
|||
private bool _settingSourceValue = false; |
|||
|
|||
public SubjectWrapper(ISubject<object> bindingSourceSubject, CellEditBinding editBinding) |
|||
{ |
|||
_sourceSubject = bindingSourceSubject; |
|||
_editBinding = editBinding; |
|||
} |
|||
|
|||
private void SetSourceValue(object value) |
|||
{ |
|||
_settingSourceValue = true; |
|||
|
|||
_sourceSubject.OnNext(value); |
|||
|
|||
_settingSourceValue = false; |
|||
} |
|||
private void SetControlValue(object value) |
|||
{ |
|||
PublishNext(value); |
|||
} |
|||
|
|||
private void OnValidationError(BindingNotification notification) |
|||
{ |
|||
if (notification.Error != null) |
|||
{ |
|||
_editBinding.AlterValidationErrors(errors => |
|||
{ |
|||
errors.Clear(); |
|||
var unpackedErrors = ValidationUtil.UnpackException(notification.Error); |
|||
if (unpackedErrors != null) |
|||
errors.AddRange(unpackedErrors); |
|||
}); |
|||
} |
|||
} |
|||
private void OnControlValueUpdated(object value) |
|||
{ |
|||
_controlValue = value; |
|||
_isControlValueSet = true; |
|||
|
|||
if (!_editBinding.IsValid) |
|||
{ |
|||
SetSourceValue(value); |
|||
} |
|||
} |
|||
private void OnSourceValueUpdated(object value) |
|||
{ |
|||
void OnValidValue(object val) |
|||
{ |
|||
SetControlValue(val); |
|||
_editBinding.AlterValidationErrors(errors => errors.Clear()); |
|||
} |
|||
|
|||
if (value is BindingNotification notification) |
|||
{ |
|||
if (notification.ErrorType != BindingErrorType.None) |
|||
OnValidationError(notification); |
|||
else |
|||
OnValidValue(value); |
|||
} |
|||
else |
|||
{ |
|||
OnValidValue(value); |
|||
} |
|||
} |
|||
|
|||
protected override void Deinitialize() |
|||
{ |
|||
_subscription?.Dispose(); |
|||
_subscription = null; |
|||
} |
|||
protected override void Initialize() |
|||
{ |
|||
_subscription = _sourceSubject.Subscribe(OnSourceValueUpdated); |
|||
} |
|||
|
|||
void IObserver<object>.OnCompleted() |
|||
{ |
|||
throw new NotImplementedException(); |
|||
} |
|||
void IObserver<object>.OnError(Exception error) |
|||
{ |
|||
throw new NotImplementedException(); |
|||
} |
|||
void IObserver<object>.OnNext(object value) |
|||
{ |
|||
OnControlValueUpdated(value); |
|||
} |
|||
|
|||
public void Dispose() |
|||
{ |
|||
_subscription?.Dispose(); |
|||
_subscription = null; |
|||
} |
|||
public void CommitEdit() |
|||
{ |
|||
if (_isControlValueSet) |
|||
SetSourceValue(_controlValue); |
|||
} |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,136 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
|
|||
namespace Avalonia.Controls.Utils |
|||
{ |
|||
internal static class DoubleUtil |
|||
{ |
|||
internal const double DBL_EPSILON = 1e-6; |
|||
|
|||
/// <summary>
|
|||
/// AreClose - Returns whether or not two doubles are "close". That is, whether or
|
|||
/// not they are within epsilon of each other. Note that this epsilon is proportional
|
|||
/// to the numbers themselves to that AreClose survives scalar multiplication.
|
|||
/// There are plenty of ways for this to return false even for numbers which
|
|||
/// are theoretically identical, so no code calling this should fail to work if this
|
|||
/// returns false. This is important enough to repeat:
|
|||
/// NB: NO CODE CALLING THIS FUNCTION SHOULD DEPEND ON ACCURATE RESULTS - this should be
|
|||
/// used for optimizations *only*.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// bool - the result of the AreClose comparison.
|
|||
/// </returns>
|
|||
/// <param name="value1"> The first double to compare. </param>
|
|||
/// <param name="value2"> The second double to compare. </param>
|
|||
public static bool AreClose(double value1, double value2) |
|||
{ |
|||
//in case they are Infinities (then epsilon check does not work)
|
|||
if (value1 == value2) return true; |
|||
// This computes (|value1-value2| / (|value1| + |value2| + 10.0)) < DBL_EPSILON
|
|||
double eps = (Math.Abs(value1) + Math.Abs(value2) + 10.0) * DBL_EPSILON; |
|||
double delta = value1 - value2; |
|||
return (-eps < delta) && (eps > delta); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// GreaterThan - Returns whether or not the first double is greater than the second double.
|
|||
/// That is, whether or not the first is strictly greater than *and* not within epsilon of
|
|||
/// the other number. Note that this epsilon is proportional to the numbers themselves
|
|||
/// to that AreClose survives scalar multiplication. Note,
|
|||
/// There are plenty of ways for this to return false even for numbers which
|
|||
/// are theoretically identical, so no code calling this should fail to work if this
|
|||
/// returns false. This is important enough to repeat:
|
|||
/// NB: NO CODE CALLING THIS FUNCTION SHOULD DEPEND ON ACCURATE RESULTS - this should be
|
|||
/// used for optimizations *only*.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// bool - the result of the GreaterThan comparison.
|
|||
/// </returns>
|
|||
/// <param name="value1"> The first double to compare. </param>
|
|||
/// <param name="value2"> The second double to compare. </param>
|
|||
public static bool GreaterThan(double value1, double value2) |
|||
{ |
|||
return (value1 > value2) && !AreClose(value1, value2); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// GreaterThanOrClose - Returns whether or not the first double is greater than or close to
|
|||
/// the second double. That is, whether or not the first is strictly greater than or within
|
|||
/// epsilon of the other number. Note that this epsilon is proportional to the numbers
|
|||
/// themselves to that AreClose survives scalar multiplication. Note,
|
|||
/// There are plenty of ways for this to return false even for numbers which
|
|||
/// are theoretically identical, so no code calling this should fail to work if this
|
|||
/// returns false. This is important enough to repeat:
|
|||
/// NB: NO CODE CALLING THIS FUNCTION SHOULD DEPEND ON ACCURATE RESULTS - this should be
|
|||
/// used for optimizations *only*.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// bool - the result of the GreaterThanOrClose comparison.
|
|||
/// </returns>
|
|||
/// <param name="value1"> The first double to compare. </param>
|
|||
/// <param name="value2"> The second double to compare. </param>
|
|||
public static bool GreaterThanOrClose(double value1, double value2) |
|||
{ |
|||
return (value1 > value2) || AreClose(value1, value2); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// IsZero - Returns whether or not the double is "close" to 0. Same as AreClose(double, 0),
|
|||
/// but this is faster.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// bool - the result of the IsZero comparison.
|
|||
/// </returns>
|
|||
/// <param name="value"> The double to compare to 0. </param>
|
|||
public static bool IsZero(double value) |
|||
{ |
|||
return Math.Abs(value) < 10.0 * DBL_EPSILON; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// LessThan - Returns whether or not the first double is less than the second double.
|
|||
/// That is, whether or not the first is strictly less than *and* not within epsilon of
|
|||
/// the other number. Note that this epsilon is proportional to the numbers themselves
|
|||
/// to that AreClose survives scalar multiplication. Note,
|
|||
/// There are plenty of ways for this to return false even for numbers which
|
|||
/// are theoretically identical, so no code calling this should fail to work if this
|
|||
/// returns false. This is important enough to repeat:
|
|||
/// NB: NO CODE CALLING THIS FUNCTION SHOULD DEPEND ON ACCURATE RESULTS - this should be
|
|||
/// used for optimizations *only*.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// bool - the result of the LessThan comparison.
|
|||
/// </returns>
|
|||
/// <param name="value1"> The first double to compare. </param>
|
|||
/// <param name="value2"> The second double to compare. </param>
|
|||
public static bool LessThan(double value1, double value2) |
|||
{ |
|||
return (value1 < value2) && !AreClose(value1, value2); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// LessThanOrClose - Returns whether or not the first double is less than or close to
|
|||
/// the second double. That is, whether or not the first is strictly less than or within
|
|||
/// epsilon of the other number. Note that this epsilon is proportional to the numbers
|
|||
/// themselves to that AreClose survives scalar multiplication. Note,
|
|||
/// There are plenty of ways for this to return false even for numbers which
|
|||
/// are theoretically identical, so no code calling this should fail to work if this
|
|||
/// returns false. This is important enough to repeat:
|
|||
/// NB: NO CODE CALLING THIS FUNCTION SHOULD DEPEND ON ACCURATE RESULTS - this should be
|
|||
/// used for optimizations *only*.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// bool - the result of the LessThanOrClose comparison.
|
|||
/// </returns>
|
|||
/// <param name="value1"> The first double to compare. </param>
|
|||
/// <param name="value2"> The second double to compare. </param>
|
|||
public static bool LessThanOrClose(double value1, double value2) |
|||
{ |
|||
return (value1 < value2) || AreClose(value1, value2); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,24 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Input; |
|||
|
|||
namespace Avalonia.Controls.Utils |
|||
{ |
|||
internal static class KeyboardHelper |
|||
{ |
|||
public static void GetMetaKeyState(InputModifiers modifiers, out bool ctrl, out bool shift) |
|||
{ |
|||
ctrl = (modifiers & InputModifiers.Control) == InputModifiers.Control; |
|||
shift = (modifiers & InputModifiers.Shift) == InputModifiers.Shift; |
|||
} |
|||
public static void GetMetaKeyState(InputModifiers modifiers, out bool ctrl, out bool shift, out bool alt) |
|||
{ |
|||
ctrl = (modifiers & InputModifiers.Control) == InputModifiers.Control; |
|||
shift = (modifiers & InputModifiers.Shift) == InputModifiers.Shift; |
|||
alt = (modifiers & InputModifiers.Alt) == InputModifiers.Alt; |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,522 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Collections; |
|||
using System.Collections.Generic; |
|||
using System.ComponentModel; |
|||
using System.ComponentModel.DataAnnotations; |
|||
using System.Diagnostics; |
|||
using System.Globalization; |
|||
using System.Reflection; |
|||
|
|||
namespace Avalonia.Controls.Utils |
|||
{ |
|||
internal static class TypeHelper |
|||
{ |
|||
internal const char LeftIndexerToken = '['; |
|||
internal const char PropertyNameSeparator = '.'; |
|||
internal const char RightIndexerToken = ']'; |
|||
|
|||
private static Type FindGenericType(Type definition, Type type) |
|||
{ |
|||
while ((type != null) && (type != typeof(object))) |
|||
{ |
|||
if (type.IsGenericType && (type.GetGenericTypeDefinition() == definition)) |
|||
{ |
|||
return type; |
|||
} |
|||
if (definition.IsInterface) |
|||
{ |
|||
foreach (Type type2 in type.GetInterfaces()) |
|||
{ |
|||
Type type3 = FindGenericType(definition, type2); |
|||
if (type3 != null) |
|||
{ |
|||
return type3; |
|||
} |
|||
} |
|||
} |
|||
type = type.BaseType; |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Finds an int or string indexer in the specified collection of members, where int indexers take priority
|
|||
/// over string indexers. If found, this method will return the associated PropertyInfo and set the out index
|
|||
/// argument to its appropriate value. If not found, the return value will be null, as will the index.
|
|||
/// </summary>
|
|||
/// <param name="members">Collection of members to search through for an indexer.</param>
|
|||
/// <param name="stringIndex">String value of indexer argument.</param>
|
|||
/// <param name="index">Resultant index value.</param>
|
|||
/// <returns>Indexer PropertyInfo if found, null otherwise.</returns>
|
|||
private static PropertyInfo FindIndexerInMembers(MemberInfo[] members, string stringIndex, out object[] index) |
|||
{ |
|||
index = null; |
|||
ParameterInfo[] parameters; |
|||
PropertyInfo stringIndexer = null; |
|||
|
|||
foreach (PropertyInfo pi in members) |
|||
{ |
|||
if (pi == null) |
|||
{ |
|||
continue; |
|||
} |
|||
|
|||
// Only a single parameter is supported and it must be a string or Int32 value.
|
|||
parameters = pi.GetIndexParameters(); |
|||
if (parameters.Length > 1) |
|||
{ |
|||
continue; |
|||
} |
|||
|
|||
if (parameters[0].ParameterType == typeof(int)) |
|||
{ |
|||
int intIndex = -1; |
|||
if (Int32.TryParse(stringIndex.Trim(), NumberStyles.None, CultureInfo.InvariantCulture, out intIndex)) |
|||
{ |
|||
index = new object[] { intIndex }; |
|||
return pi; |
|||
} |
|||
} |
|||
|
|||
// If string indexer is found save it, in case there is an int indexer.
|
|||
if (parameters[0].ParameterType == typeof(string)) |
|||
{ |
|||
index = new object[] { stringIndex }; |
|||
stringIndexer = pi; |
|||
} |
|||
} |
|||
|
|||
return stringIndexer; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the default member name that is used for an indexer (e.g. "Item").
|
|||
/// </summary>
|
|||
/// <param name="type">Type to check.</param>
|
|||
/// <returns>Default member name.</returns>
|
|||
private static string GetDefaultMemberName(this Type type) |
|||
{ |
|||
object[] attributes = type.GetCustomAttributes(typeof(DefaultMemberAttribute), true); |
|||
if (attributes != null && attributes.Length == 1) |
|||
{ |
|||
DefaultMemberAttribute defaultMemberAttribute = attributes[0] as DefaultMemberAttribute; |
|||
return defaultMemberAttribute.MemberName; |
|||
} |
|||
else |
|||
{ |
|||
return null; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Finds the PropertyInfo for the specified property path within this Type, and returns
|
|||
/// the value of GetShortName on its DisplayAttribute, if one exists. GetShortName will return
|
|||
/// the value of Name if there is no ShortName specified.
|
|||
/// </summary>
|
|||
/// <param name="type">Type to search</param>
|
|||
/// <param name="propertyPath">property path</param>
|
|||
/// <returns>DisplayAttribute.ShortName if it exists, null otherwise</returns>
|
|||
internal static string GetDisplayName(this Type type, string propertyPath) |
|||
{ |
|||
PropertyInfo propertyInfo = type.GetNestedProperty(propertyPath); |
|||
if (propertyInfo != null) |
|||
{ |
|||
object[] attributes = propertyInfo.GetCustomAttributes(typeof(DisplayAttribute), true); |
|||
if (attributes != null && attributes.Length > 0) |
|||
{ |
|||
Debug.Assert(attributes.Length == 1); |
|||
if (attributes[0] is DisplayAttribute displayAttribute) |
|||
{ |
|||
return displayAttribute.GetShortName(); |
|||
} |
|||
} |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
internal static Type GetEnumerableItemType(this Type enumerableType) |
|||
{ |
|||
Type type = FindGenericType(typeof(IEnumerable<>), enumerableType); |
|||
if (type != null) |
|||
{ |
|||
return type.GetGenericArguments()[0]; |
|||
} |
|||
return enumerableType; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Retrieves the value and type of a property. That property can be nested and its path
|
|||
/// can include indexers. Each element of the path needs to be a public instance property.
|
|||
/// </summary>
|
|||
/// <param name="parentType">The parent Type</param>
|
|||
/// <param name="propertyPath">Property path</param>
|
|||
/// <param name="exception">Potential exception</param>
|
|||
/// <param name="item">Parent item which will be set to the property value if non-null.</param>
|
|||
/// <returns></returns>
|
|||
private static PropertyInfo GetNestedProperty(this Type parentType, string propertyPath, out Exception exception, ref object item) |
|||
{ |
|||
exception = null; |
|||
if (parentType == null || String.IsNullOrEmpty(propertyPath)) |
|||
{ |
|||
item = null; |
|||
return null; |
|||
} |
|||
|
|||
Type type = parentType; |
|||
PropertyInfo propertyInfo = null; |
|||
List<string> propertyNames = SplitPropertyPath(propertyPath); |
|||
for (int i = 0; i < propertyNames.Count; i++) |
|||
{ |
|||
// if we can't find the property or it is not of the correct type,
|
|||
// treat it as a null value
|
|||
propertyInfo = type.GetPropertyOrIndexer(propertyNames[i], out object[] index); |
|||
if (propertyInfo == null) |
|||
{ |
|||
item = null; |
|||
return null; |
|||
} |
|||
|
|||
if (!propertyInfo.CanRead) |
|||
{ |
|||
exception = |
|||
new InvalidOperationException( |
|||
$"The property named '{propertyNames[i]}' on type '{type.GetTypeName()}' cannot be read."); |
|||
item = null; |
|||
return null; |
|||
} |
|||
|
|||
if (item != null) |
|||
{ |
|||
item = propertyInfo.GetValue(item, index); |
|||
} |
|||
type = propertyInfo.PropertyType.GetNonNullableType(); |
|||
} |
|||
|
|||
return propertyInfo; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Finds the leaf PropertyInfo for the specified property path, and returns its value
|
|||
/// if the item is non-null.
|
|||
/// </summary>
|
|||
/// <param name="parentType">Type to search.</param>
|
|||
/// <param name="propertyPath">Property path.</param>
|
|||
/// <param name="item">Parent item which will be set to the property value if non-null.</param>
|
|||
/// <returns>The PropertyInfo.</returns>
|
|||
internal static PropertyInfo GetNestedProperty(this Type parentType, string propertyPath, ref object item) |
|||
{ |
|||
return parentType.GetNestedProperty(propertyPath, out Exception ex, ref item); |
|||
} |
|||
|
|||
internal static PropertyInfo GetNestedProperty(this Type parentType, string propertyPath) |
|||
{ |
|||
if (parentType != null) |
|||
{ |
|||
object item = null; |
|||
return parentType.GetNestedProperty(propertyPath, ref item); |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the friendly name for a type
|
|||
/// </summary>
|
|||
/// <param name="type">The type to get the name from</param>
|
|||
/// <returns>Textual representation of the input type</returns>
|
|||
internal static string GetTypeName(this Type type) |
|||
{ |
|||
Type baseType = type.GetNonNullableType(); |
|||
string s = baseType.Name; |
|||
if (type != baseType) |
|||
{ |
|||
s += '?'; |
|||
} |
|||
return s; |
|||
} |
|||
|
|||
internal static Type GetNestedPropertyType(this Type parentType, string propertyPath) |
|||
{ |
|||
if (parentType == null || String.IsNullOrEmpty(propertyPath)) |
|||
{ |
|||
return parentType; |
|||
} |
|||
|
|||
PropertyInfo propertyInfo = parentType.GetNestedProperty(propertyPath); |
|||
if (propertyInfo != null) |
|||
{ |
|||
return propertyInfo.PropertyType; |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Retrieves the value of a property. That property can be nested and its path can
|
|||
/// include indexers. Each element of the path needs to be a public instance property.
|
|||
/// The return value will either be of type propertyType or it will be null.
|
|||
/// </summary>
|
|||
/// <param name="item">Object that exposes the property</param>
|
|||
/// <param name="propertyPath">Property path</param>
|
|||
/// <param name="propertyType">Property type</param>
|
|||
/// <param name="exception">Potential exception</param>
|
|||
/// <returns>Property value</returns>
|
|||
internal static object GetNestedPropertyValue(object item, string propertyPath, Type propertyType, out Exception exception) |
|||
{ |
|||
exception = null; |
|||
|
|||
// if the item is null, treat the property value as null
|
|||
if (item == null) |
|||
{ |
|||
return null; |
|||
} |
|||
|
|||
// if the propertyPath is null or empty, return the item
|
|||
if (String.IsNullOrEmpty(propertyPath)) |
|||
{ |
|||
return item; |
|||
} |
|||
|
|||
object propertyValue = item; |
|||
Type itemType = item.GetType(); |
|||
if (itemType != null) |
|||
{ |
|||
PropertyInfo propertyInfo = itemType.GetNestedProperty(propertyPath, out exception, ref propertyValue); |
|||
if (propertyInfo != null && propertyInfo.PropertyType != propertyType) |
|||
{ |
|||
return null; |
|||
} |
|||
} |
|||
return propertyValue; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets the value of a given property path on a particular data item.
|
|||
/// </summary>
|
|||
/// <param name="item">Parent data item.</param>
|
|||
/// <param name="propertyPath">Property path.</param>
|
|||
/// <returns>Value.</returns>
|
|||
internal static object GetNestedPropertyValue(object item, string propertyPath) |
|||
{ |
|||
if (item != null) |
|||
{ |
|||
Type parentType = item.GetType(); |
|||
if (String.IsNullOrEmpty(propertyPath)) |
|||
{ |
|||
return item; |
|||
} |
|||
else if (parentType != null) |
|||
{ |
|||
object nestedValue = item; |
|||
parentType.GetNestedProperty(propertyPath, ref nestedValue); |
|||
return nestedValue; |
|||
} |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
internal static Type GetNonNullableType(this Type type) |
|||
{ |
|||
if (IsNullableType(type)) |
|||
{ |
|||
return type.GetGenericArguments()[0]; |
|||
} |
|||
return type; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns the PropertyInfo for the specified property path. If the property path
|
|||
/// refers to an indexer (e.g. "[abc]"), then the index out parameter will be set to the value
|
|||
/// specified in the property path. This method only supports indexers with a single parameter
|
|||
/// that is either an int or a string. Int parameters take priority over string parameters.
|
|||
/// </summary>
|
|||
/// <param name="type">Type to search.</param>
|
|||
/// <param name="propertyPath">Property path.</param>
|
|||
/// <param name="index">Set to the index if return value is an indexer, otherwise null.</param>
|
|||
/// <returns>PropertyInfo for either a property or an indexer.</returns>
|
|||
internal static PropertyInfo GetPropertyOrIndexer(this Type type, string propertyPath, out object[] index) |
|||
{ |
|||
index = null; |
|||
if (string.IsNullOrEmpty(propertyPath) || propertyPath[0] != LeftIndexerToken) |
|||
{ |
|||
// Return the default value of GetProperty if the first character is not an indexer token.
|
|||
return type.GetProperty(propertyPath); |
|||
} |
|||
|
|||
if (propertyPath.Length < 2 || propertyPath[propertyPath.Length - 1] != RightIndexerToken) |
|||
{ |
|||
// Return null if the indexer does not meet the standard format (i.e. "[x]").
|
|||
return null; |
|||
} |
|||
|
|||
PropertyInfo indexer = null; |
|||
string stringIndex = propertyPath.Substring(1, propertyPath.Length - 2); |
|||
indexer = FindIndexerInMembers(type.GetDefaultMembers(), stringIndex, out index); |
|||
if (indexer != null) |
|||
{ |
|||
// We found the indexer, so return it.
|
|||
return indexer; |
|||
} |
|||
|
|||
if (typeof(IList).IsAssignableFrom(type)) |
|||
{ |
|||
// If the object is of type IList, try to use its default indexer.
|
|||
indexer = FindIndexerInMembers(typeof(IList).GetDefaultMembers(), stringIndex, out index); |
|||
} |
|||
|
|||
return indexer; |
|||
} |
|||
|
|||
internal static bool IsEnumerableType(this Type enumerableType) |
|||
{ |
|||
return (FindGenericType(typeof(IEnumerable<>), enumerableType) != null); |
|||
} |
|||
|
|||
internal static bool IsNullableType(this Type type) |
|||
{ |
|||
return (((type != null) && type.IsGenericType) && (type.GetGenericTypeDefinition() == typeof(Nullable<>))); |
|||
} |
|||
|
|||
internal static bool IsNullableEnum(this Type type) |
|||
{ |
|||
return type.IsNullableType() && |
|||
type.GetGenericArguments().Length == 1 && |
|||
type.GetGenericArguments()[0].IsEnum; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// If the specified property is an indexer, this method will prepend the object's
|
|||
/// default member name to it (e.g. "[foo]" returns "Item[foo]").
|
|||
/// </summary>
|
|||
/// <param name="item">Declaring data item.</param>
|
|||
/// <param name="property">Property name.</param>
|
|||
/// <returns>Property with default member name prepended, or property if unchanged.</returns>
|
|||
internal static string PrependDefaultMemberName(object item, string property) |
|||
{ |
|||
if (item != null && !string.IsNullOrEmpty(property) && property[0] == TypeHelper.LeftIndexerToken) |
|||
{ |
|||
// The leaf property name is an indexer, so add the default member name.
|
|||
Type declaringType = item.GetType(); |
|||
if (declaringType != null) |
|||
{ |
|||
string defaultMemberName = declaringType.GetNonNullableType().GetDefaultMemberName(); |
|||
if (!string.IsNullOrEmpty(defaultMemberName)) |
|||
{ |
|||
return defaultMemberName + property; |
|||
} |
|||
} |
|||
} |
|||
return property; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// If the specified property is an indexer, this method will remove the object's
|
|||
/// default member name from it (e.g. "Item[foo]" returns "[foo]").
|
|||
/// </summary>
|
|||
/// <param name="property">Property name.</param>
|
|||
/// <returns>Property with default member name removed, or property if unchanged.</returns>
|
|||
internal static string RemoveDefaultMemberName(string property) |
|||
{ |
|||
if (!string.IsNullOrEmpty(property) && property[property.Length - 1] == TypeHelper.RightIndexerToken) |
|||
{ |
|||
// The property is an indexer, so remove the default member name.
|
|||
int leftIndexerToken = property.IndexOf(TypeHelper.LeftIndexerToken); |
|||
if (leftIndexerToken >= 0) |
|||
{ |
|||
return property.Substring(leftIndexerToken); |
|||
} |
|||
} |
|||
return property; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Returns a list of substrings where each one represents a single property within a nested
|
|||
/// property path which may include indexers. For example, the string "abc.d[efg][h].ijk"
|
|||
/// would return the substrings: "abc", "d", "[efg]", "[h]", and "ijk".
|
|||
/// </summary>
|
|||
/// <param name="propertyPath">Path to split.</param>
|
|||
/// <returns>List of property substrings.</returns>
|
|||
internal static List<string> SplitPropertyPath(string propertyPath) |
|||
{ |
|||
List<string> propertyPaths = new List<string>(); |
|||
if (!string.IsNullOrEmpty(propertyPath)) |
|||
{ |
|||
int startIndex = 0; |
|||
for (int index = 0; index < propertyPath.Length; index++) |
|||
{ |
|||
if (propertyPath[index] == PropertyNameSeparator) |
|||
{ |
|||
propertyPaths.Add(propertyPath.Substring(startIndex, index - startIndex)); |
|||
startIndex = index + 1; |
|||
} |
|||
else if (startIndex != index && propertyPath[index] == LeftIndexerToken) |
|||
{ |
|||
propertyPaths.Add(propertyPath.Substring(startIndex, index - startIndex)); |
|||
startIndex = index; |
|||
} |
|||
else if (index == propertyPath.Length - 1) |
|||
{ |
|||
propertyPaths.Add(propertyPath.Substring(startIndex)); |
|||
} |
|||
} |
|||
} |
|||
return propertyPaths; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Checks a MemberInfo object (e.g. a Type or PropertyInfo) for the ReadOnly attribute
|
|||
/// and returns the value of IsReadOnly if it exists.
|
|||
/// </summary>
|
|||
/// <param name="memberInfo">MemberInfo to check</param>
|
|||
/// <returns>true if MemberInfo is read-only, false otherwise</returns>
|
|||
internal static bool GetIsReadOnly(this MemberInfo memberInfo) |
|||
{ |
|||
if (memberInfo != null) |
|||
{ |
|||
// Check if ReadOnlyAttribute is defined on the member
|
|||
object[] attributes = memberInfo.GetCustomAttributes(typeof(ReadOnlyAttribute), true); |
|||
if (attributes != null && attributes.Length > 0) |
|||
{ |
|||
ReadOnlyAttribute readOnlyAttribute = attributes[0] as ReadOnlyAttribute; |
|||
Debug.Assert(readOnlyAttribute != null); |
|||
return readOnlyAttribute.IsReadOnly; |
|||
} |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
internal static Type GetItemType(this IEnumerable list) |
|||
{ |
|||
Type listType = list.GetType(); |
|||
Type itemType = null; |
|||
|
|||
// if it's a generic enumerable, we get the generic type
|
|||
|
|||
// Unfortunately, if data source is fed from a bare IEnumerable, TypeHelper will report an element type of object,
|
|||
// which is not particularly interesting. We deal with it further on.
|
|||
if (listType.IsEnumerableType()) |
|||
{ |
|||
itemType = listType.GetEnumerableItemType(); |
|||
} |
|||
|
|||
// Bare IEnumerables mean that result type will be object. In that case, we try to get something more interesting
|
|||
if (itemType == null || itemType == typeof(object)) |
|||
{ |
|||
// We haven't located a type yet.. try a different approach.
|
|||
// Does the list have anything in it?
|
|||
|
|||
IEnumerator en = list.GetEnumerator(); |
|||
if (en.MoveNext() && en.Current != null) |
|||
{ |
|||
return en.Current.GetType(); |
|||
} |
|||
} |
|||
|
|||
// if we're null at this point, give up
|
|||
return itemType; |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,60 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using Avalonia.Input; |
|||
using Avalonia.VisualTree; |
|||
using Avalonia.Controls; |
|||
|
|||
namespace Avalonia.Controls.Utils |
|||
{ |
|||
internal static class TreeHelper |
|||
{ |
|||
/// <summary>
|
|||
/// Walks the visual tree to determine if a particular child is contained within a parent Visual.
|
|||
/// </summary>
|
|||
/// <param name="element">Parent Visual</param>
|
|||
/// <param name="child">Child Visual</param>
|
|||
/// <returns>True if the parent element contains the child</returns>
|
|||
internal static bool ContainsChild(this IVisual element, IVisual child) |
|||
{ |
|||
if (element != null) |
|||
{ |
|||
while (child != null) |
|||
{ |
|||
if (child == element) |
|||
{ |
|||
return true; |
|||
} |
|||
|
|||
// Walk up the visual tree. If we hit the root, try using the framework element's
|
|||
// parent. We do this because Popups behave differently with respect to the visual tree,
|
|||
// and it could have a parent even if the VisualTreeHelper doesn't find it.
|
|||
IVisual parent = child.GetVisualParent(); |
|||
if (parent == null) |
|||
{ |
|||
if (child is IControl childElement) |
|||
{ |
|||
parent = childElement.Parent; |
|||
} |
|||
} |
|||
child = parent; |
|||
} |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Walks the visual tree to determine if the currently focused element is contained within
|
|||
/// a parent AvaloniaObject. The FocusManager's Current property is used to determine
|
|||
/// the currently focused element, which is updated synchronously.
|
|||
/// </summary>
|
|||
/// <param name="element">Parent Visual</param>
|
|||
/// <returns>True if the currently focused element is within the visual tree of the parent</returns>
|
|||
internal static bool ContainsFocusedElement(this IVisual element) |
|||
{ |
|||
return (element == null) ? false : element.ContainsChild(FocusManager.Instance.Current); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,167 @@ |
|||
// (c) Copyright Microsoft Corporation.
|
|||
// This source is subject to the Microsoft Public License (Ms-PL).
|
|||
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
|
|||
// All other rights reserved.
|
|||
|
|||
using System; |
|||
using System.Collections.Generic; |
|||
using System.ComponentModel.DataAnnotations; |
|||
using System.Text; |
|||
using System.Threading; |
|||
using System.Linq; |
|||
using Avalonia.Data; |
|||
|
|||
namespace Avalonia.Controls.Utils |
|||
{ |
|||
internal static class ValidationUtil |
|||
{ |
|||
/// <summary>
|
|||
/// Searches a ValidationResult for the specified target member name. If the target is null
|
|||
/// or empty, this method will return true if there are no member names at all.
|
|||
/// </summary>
|
|||
/// <param name="validationResult">ValidationResult to search.</param>
|
|||
/// <param name="target">Member name to search for.</param>
|
|||
/// <returns>True if found.</returns>
|
|||
public static bool ContainsMemberName(this ValidationResult validationResult, string target) |
|||
{ |
|||
int memberNameCount = 0; |
|||
foreach (string memberName in validationResult.MemberNames) |
|||
{ |
|||
if (string.Equals(target, memberName)) |
|||
{ |
|||
return true; |
|||
} |
|||
memberNameCount++; |
|||
} |
|||
return (memberNameCount == 0 && string.IsNullOrEmpty(target)); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Finds an equivalent ValidationResult if one exists.
|
|||
/// </summary>
|
|||
/// <param name="collection">ValidationResults to search through.</param>
|
|||
/// <param name="target">ValidationResult to find.</param>
|
|||
/// <returns>Equal ValidationResult if found, null otherwise.</returns>
|
|||
public static ValidationResult FindEqualValidationResult(this ICollection<ValidationResult> collection, ValidationResult target) |
|||
{ |
|||
foreach (ValidationResult oldValidationResult in collection) |
|||
{ |
|||
if (oldValidationResult.ErrorMessage == target.ErrorMessage) |
|||
{ |
|||
bool movedOld = true; |
|||
bool movedTarget = true; |
|||
IEnumerator<string> oldEnumerator = oldValidationResult.MemberNames.GetEnumerator(); |
|||
IEnumerator<string> targetEnumerator = target.MemberNames.GetEnumerator(); |
|||
while (movedOld && movedTarget) |
|||
{ |
|||
movedOld = oldEnumerator.MoveNext(); |
|||
movedTarget = targetEnumerator.MoveNext(); |
|||
|
|||
if (!movedOld && !movedTarget) |
|||
{ |
|||
return oldValidationResult; |
|||
} |
|||
if (movedOld != movedTarget || oldEnumerator.Current != targetEnumerator.Current) |
|||
{ |
|||
break; |
|||
} |
|||
} |
|||
} |
|||
} |
|||
return null; |
|||
} |
|||
|
|||
public static bool IsValid(this ValidationResult result) |
|||
{ |
|||
return result == null || result == ValidationResult.Success; |
|||
} |
|||
|
|||
public static IEnumerable<Exception> UnpackException(Exception exception) |
|||
{ |
|||
if (exception != null) |
|||
{ |
|||
var aggregate = exception as AggregateException; |
|||
var exceptions = aggregate == null ? |
|||
(IEnumerable<Exception>)new[] { exception } : |
|||
aggregate.InnerExceptions; |
|||
var filtered = exceptions.Where(x => !(x is BindingChainException)).ToList(); |
|||
|
|||
if (filtered.Count > 0) |
|||
{ |
|||
return filtered; |
|||
} |
|||
} |
|||
|
|||
return null; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Determines whether the collection contains an equivalent ValidationResult
|
|||
/// </summary>
|
|||
/// <param name="collection">ValidationResults to search through</param>
|
|||
/// <param name="target">ValidationResult to search for</param>
|
|||
/// <returns></returns>
|
|||
public static bool ContainsEqualValidationResult(this ICollection<ValidationResult> collection, ValidationResult target) |
|||
{ |
|||
return (collection.FindEqualValidationResult(target) != null); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Adds a new ValidationResult to the collection if an equivalent does not exist.
|
|||
/// </summary>
|
|||
/// <param name="collection">ValidationResults to search through</param>
|
|||
/// <param name="value">ValidationResult to add</param>
|
|||
public static void AddIfNew(this ICollection<ValidationResult> collection, ValidationResult value) |
|||
{ |
|||
if (!collection.ContainsEqualValidationResult(value)) |
|||
{ |
|||
collection.Add(value); |
|||
} |
|||
} |
|||
|
|||
private static bool ExceptionsMatch(Exception e1, Exception e2) |
|||
{ |
|||
return e1.Message == e2.Message; |
|||
} |
|||
public static void AddExceptionIfNew(this ICollection<Exception> collection, Exception value) |
|||
{ |
|||
if(!collection.Any(e => ExceptionsMatch(e, value))) |
|||
{ |
|||
collection.Add(value); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Performs an action and catches any non-critical exceptions.
|
|||
/// </summary>
|
|||
/// <param name="action">Action to perform</param>
|
|||
public static void CatchNonCriticalExceptions(Action action) |
|||
{ |
|||
try |
|||
{ |
|||
action(); |
|||
} |
|||
catch (Exception exception) |
|||
{ |
|||
if (IsCriticalException(exception)) |
|||
{ |
|||
throw; |
|||
} |
|||
// Catch any non-critical exceptions
|
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Determines if the specified exception is un-recoverable.
|
|||
/// </summary>
|
|||
/// <param name="exception">The exception.</param>
|
|||
/// <returns>True if the process cannot be recovered from the exception.</returns>
|
|||
public static bool IsCriticalException(Exception exception) |
|||
{ |
|||
return (exception is OutOfMemoryException) || |
|||
(exception is StackOverflowException) || |
|||
(exception is AccessViolationException) || |
|||
(exception is ThreadAbortException); |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,373 @@ |
|||
// Copyright (c) The Avalonia Project. All rights reserved.
|
|||
// Licensed under the MIT license. See licence.md file in the project root for full license information.
|
|||
|
|||
using System; |
|||
using System.Linq; |
|||
using Avalonia.Controls.Generators; |
|||
using Avalonia.Controls.Presenters; |
|||
using Avalonia.Controls.Primitives; |
|||
using Avalonia.Controls.Shapes; |
|||
using Avalonia.Controls.Templates; |
|||
using Avalonia.Input; |
|||
using Avalonia.LogicalTree; |
|||
using Avalonia.Media; |
|||
using Avalonia.VisualTree; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// A drop-down list control.
|
|||
/// </summary>
|
|||
public class ComboBox : SelectingItemsControl |
|||
{ |
|||
/// <summary>
|
|||
/// The default value for the <see cref="ItemsControl.ItemsPanel"/> property.
|
|||
/// </summary>
|
|||
private static readonly FuncTemplate<IPanel> DefaultPanel = |
|||
new FuncTemplate<IPanel>(() => new VirtualizingStackPanel()); |
|||
|
|||
/// <summary>
|
|||
/// Defines the <see cref="IsDropDownOpen"/> property.
|
|||
/// </summary>
|
|||
public static readonly DirectProperty<ComboBox, bool> IsDropDownOpenProperty = |
|||
AvaloniaProperty.RegisterDirect<ComboBox, bool>( |
|||
nameof(IsDropDownOpen), |
|||
o => o.IsDropDownOpen, |
|||
(o, v) => o.IsDropDownOpen = v); |
|||
|
|||
/// <summary>
|
|||
/// Defines the <see cref="MaxDropDownHeight"/> property.
|
|||
/// </summary>
|
|||
public static readonly StyledProperty<double> MaxDropDownHeightProperty = |
|||
AvaloniaProperty.Register<ComboBox, double>(nameof(MaxDropDownHeight), 200); |
|||
|
|||
/// <summary>
|
|||
/// Defines the <see cref="SelectionBoxItem"/> property.
|
|||
/// </summary>
|
|||
public static readonly DirectProperty<ComboBox, object> SelectionBoxItemProperty = |
|||
AvaloniaProperty.RegisterDirect<ComboBox, object>(nameof(SelectionBoxItem), o => o.SelectionBoxItem); |
|||
|
|||
/// <summary>
|
|||
/// Defines the <see cref="VirtualizationMode"/> property.
|
|||
/// </summary>
|
|||
public static readonly StyledProperty<ItemVirtualizationMode> VirtualizationModeProperty = |
|||
ItemsPresenter.VirtualizationModeProperty.AddOwner<ComboBox>(); |
|||
|
|||
private bool _isDropDownOpen; |
|||
private Popup _popup; |
|||
private object _selectionBoxItem; |
|||
private IDisposable _subscriptionsOnOpen; |
|||
|
|||
/// <summary>
|
|||
/// Initializes static members of the <see cref="ComboBox"/> class.
|
|||
/// </summary>
|
|||
static ComboBox() |
|||
{ |
|||
ItemsPanelProperty.OverrideDefaultValue<ComboBox>(DefaultPanel); |
|||
FocusableProperty.OverrideDefaultValue<ComboBox>(true); |
|||
SelectedItemProperty.Changed.AddClassHandler<ComboBox>(x => x.SelectedItemChanged); |
|||
KeyDownEvent.AddClassHandler<ComboBox>(x => x.OnKeyDown, Interactivity.RoutingStrategies.Tunnel); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets a value indicating whether the dropdown is currently open.
|
|||
/// </summary>
|
|||
public bool IsDropDownOpen |
|||
{ |
|||
get { return _isDropDownOpen; } |
|||
set { SetAndRaise(IsDropDownOpenProperty, ref _isDropDownOpen, value); } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the maximum height for the dropdown list.
|
|||
/// </summary>
|
|||
public double MaxDropDownHeight |
|||
{ |
|||
get { return GetValue(MaxDropDownHeightProperty); } |
|||
set { SetValue(MaxDropDownHeightProperty, value); } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the item to display as the control's content.
|
|||
/// </summary>
|
|||
protected object SelectionBoxItem |
|||
{ |
|||
get { return _selectionBoxItem; } |
|||
set { SetAndRaise(SelectionBoxItemProperty, ref _selectionBoxItem, value); } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the virtualization mode for the items.
|
|||
/// </summary>
|
|||
public ItemVirtualizationMode VirtualizationMode |
|||
{ |
|||
get { return GetValue(VirtualizationModeProperty); } |
|||
set { SetValue(VirtualizationModeProperty, value); } |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override IItemContainerGenerator CreateItemContainerGenerator() |
|||
{ |
|||
return new ItemContainerGenerator<ComboBoxItem>( |
|||
this, |
|||
ComboBoxItem.ContentProperty, |
|||
ComboBoxItem.ContentTemplateProperty); |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnAttachedToLogicalTree(LogicalTreeAttachmentEventArgs e) |
|||
{ |
|||
base.OnAttachedToLogicalTree(e); |
|||
this.UpdateSelectionBoxItem(this.SelectedItem); |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnKeyDown(KeyEventArgs e) |
|||
{ |
|||
base.OnKeyDown(e); |
|||
|
|||
if (e.Handled) |
|||
return; |
|||
|
|||
if (e.Key == Key.F4 || |
|||
((e.Key == Key.Down || e.Key == Key.Up) && ((e.Modifiers & InputModifiers.Alt) != 0))) |
|||
{ |
|||
IsDropDownOpen = !IsDropDownOpen; |
|||
e.Handled = true; |
|||
} |
|||
else if (IsDropDownOpen && e.Key == Key.Escape) |
|||
{ |
|||
IsDropDownOpen = false; |
|||
e.Handled = true; |
|||
} |
|||
else if (IsDropDownOpen && e.Key == Key.Enter) |
|||
{ |
|||
SelectFocusedItem(); |
|||
IsDropDownOpen = false; |
|||
e.Handled = true; |
|||
} |
|||
else if (!IsDropDownOpen) |
|||
{ |
|||
if (e.Key == Key.Down) |
|||
{ |
|||
SelectNext(); |
|||
e.Handled = true; |
|||
} |
|||
else if (e.Key == Key.Up) |
|||
{ |
|||
SelectPrev(); |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
else if (IsDropDownOpen && SelectedIndex < 0 && ItemCount > 0 && |
|||
(e.Key == Key.Up || e.Key == Key.Down)) |
|||
{ |
|||
var firstChild = Presenter?.Panel?.Children.FirstOrDefault(c => CanFocus(c)); |
|||
if (firstChild != null) |
|||
{ |
|||
FocusManager.Instance?.Focus(firstChild, NavigationMethod.Directional); |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnPointerWheelChanged(PointerWheelEventArgs e) |
|||
{ |
|||
base.OnPointerWheelChanged(e); |
|||
|
|||
if (!e.Handled) |
|||
{ |
|||
if (!IsDropDownOpen) |
|||
{ |
|||
if (IsFocused) |
|||
{ |
|||
if (e.Delta.Y < 0) |
|||
SelectNext(); |
|||
else |
|||
SelectPrev(); |
|||
|
|||
e.Handled = true; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnPointerPressed(PointerPressedEventArgs e) |
|||
{ |
|||
if (!e.Handled) |
|||
{ |
|||
if (_popup?.PopupRoot != null && ((IVisual)e.Source).GetVisualRoot() == _popup?.PopupRoot) |
|||
{ |
|||
if (UpdateSelectionFromEventSource(e.Source)) |
|||
{ |
|||
_popup?.Close(); |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
IsDropDownOpen = !IsDropDownOpen; |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
|
|||
base.OnPointerPressed(e); |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnTemplateApplied(TemplateAppliedEventArgs e) |
|||
{ |
|||
if (_popup != null) |
|||
{ |
|||
_popup.Opened -= PopupOpened; |
|||
_popup.Closed -= PopupClosed; |
|||
} |
|||
|
|||
_popup = e.NameScope.Get<Popup>("PART_Popup"); |
|||
_popup.Opened += PopupOpened; |
|||
_popup.Closed += PopupClosed; |
|||
|
|||
base.OnTemplateApplied(e); |
|||
} |
|||
|
|||
internal void ItemFocused(ComboBoxItem dropDownItem) |
|||
{ |
|||
if (IsDropDownOpen && dropDownItem.IsFocused && dropDownItem.IsArrangeValid) |
|||
{ |
|||
dropDownItem.BringIntoView(); |
|||
} |
|||
} |
|||
|
|||
private void PopupClosed(object sender, EventArgs e) |
|||
{ |
|||
_subscriptionsOnOpen?.Dispose(); |
|||
_subscriptionsOnOpen = null; |
|||
|
|||
if (CanFocus(this)) |
|||
{ |
|||
Focus(); |
|||
} |
|||
} |
|||
|
|||
private void PopupOpened(object sender, EventArgs e) |
|||
{ |
|||
TryFocusSelectedItem(); |
|||
|
|||
_subscriptionsOnOpen?.Dispose(); |
|||
_subscriptionsOnOpen = null; |
|||
|
|||
var toplevel = this.GetVisualRoot() as TopLevel; |
|||
if (toplevel != null) |
|||
{ |
|||
_subscriptionsOnOpen = toplevel.AddHandler(PointerWheelChangedEvent, (s, ev) => |
|||
{ |
|||
//eat wheel scroll event outside dropdown popup while it's open
|
|||
if (IsDropDownOpen && (ev.Source as IVisual).GetVisualRoot() == toplevel) |
|||
{ |
|||
ev.Handled = true; |
|||
} |
|||
}, Interactivity.RoutingStrategies.Tunnel); |
|||
} |
|||
} |
|||
|
|||
private void SelectedItemChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
UpdateSelectionBoxItem(e.NewValue); |
|||
TryFocusSelectedItem(); |
|||
} |
|||
|
|||
private void TryFocusSelectedItem() |
|||
{ |
|||
var selectedIndex = SelectedIndex; |
|||
if (IsDropDownOpen && selectedIndex != -1) |
|||
{ |
|||
var container = ItemContainerGenerator.ContainerFromIndex(selectedIndex); |
|||
|
|||
if (container == null && SelectedItems.Count > 0) |
|||
{ |
|||
ScrollIntoView(SelectedItems[0]); |
|||
container = ItemContainerGenerator.ContainerFromIndex(selectedIndex); |
|||
} |
|||
|
|||
if (container != null && CanFocus(container)) |
|||
{ |
|||
container.Focus(); |
|||
} |
|||
} |
|||
} |
|||
|
|||
private bool CanFocus(IControl control) => control.Focusable && control.IsEnabledCore && control.IsVisible; |
|||
|
|||
private void UpdateSelectionBoxItem(object item) |
|||
{ |
|||
var contentControl = item as IContentControl; |
|||
|
|||
if (contentControl != null) |
|||
{ |
|||
item = contentControl.Content; |
|||
} |
|||
|
|||
var control = item as IControl; |
|||
|
|||
if (control != null) |
|||
{ |
|||
control.Measure(Size.Infinity); |
|||
|
|||
SelectionBoxItem = new Rectangle |
|||
{ |
|||
Width = control.DesiredSize.Width, |
|||
Height = control.DesiredSize.Height, |
|||
Fill = new VisualBrush |
|||
{ |
|||
Visual = control, |
|||
Stretch = Stretch.None, |
|||
AlignmentX = AlignmentX.Left, |
|||
} |
|||
}; |
|||
} |
|||
else |
|||
{ |
|||
var selector = MemberSelector; |
|||
SelectionBoxItem = selector != null ? selector.Select(item) : item; |
|||
} |
|||
} |
|||
|
|||
private void SelectFocusedItem() |
|||
{ |
|||
foreach (ItemContainerInfo dropdownItem in ItemContainerGenerator.Containers) |
|||
{ |
|||
if (dropdownItem.ContainerControl.IsFocused) |
|||
{ |
|||
SelectedIndex = dropdownItem.Index; |
|||
break; |
|||
} |
|||
} |
|||
} |
|||
|
|||
private void SelectNext() |
|||
{ |
|||
int next = SelectedIndex + 1; |
|||
|
|||
if (next >= ItemCount) |
|||
next = 0; |
|||
|
|||
SelectedIndex = next; |
|||
} |
|||
|
|||
private void SelectPrev() |
|||
{ |
|||
int prev = SelectedIndex - 1; |
|||
|
|||
if (prev < 0) |
|||
prev = ItemCount - 1; |
|||
|
|||
SelectedIndex = prev; |
|||
} |
|||
} |
|||
} |
|||
@ -1,373 +1,28 @@ |
|||
// Copyright (c) The Avalonia Project. All rights reserved.
|
|||
// Licensed under the MIT license. See licence.md file in the project root for full license information.
|
|||
|
|||
using System; |
|||
using System.Linq; |
|||
using Avalonia.Controls.Generators; |
|||
using Avalonia.Controls.Presenters; |
|||
using Avalonia.Controls.Primitives; |
|||
using Avalonia.Controls.Shapes; |
|||
using Avalonia.Controls.Templates; |
|||
using Avalonia.Input; |
|||
using Avalonia.LogicalTree; |
|||
using Avalonia.Media; |
|||
using Avalonia.VisualTree; |
|||
using System; |
|||
using Avalonia.Logging; |
|||
using Avalonia.Styling; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
/// <summary>
|
|||
/// A drop-down list control.
|
|||
/// </summary>
|
|||
public class DropDown : SelectingItemsControl |
|||
[Obsolete("Use ComboBox")] |
|||
public class DropDown : ComboBox, IStyleable |
|||
{ |
|||
/// <summary>
|
|||
/// The default value for the <see cref="ItemsControl.ItemsPanel"/> property.
|
|||
/// </summary>
|
|||
private static readonly FuncTemplate<IPanel> DefaultPanel = |
|||
new FuncTemplate<IPanel>(() => new VirtualizingStackPanel()); |
|||
|
|||
/// <summary>
|
|||
/// Defines the <see cref="IsDropDownOpen"/> property.
|
|||
/// </summary>
|
|||
public static readonly DirectProperty<DropDown, bool> IsDropDownOpenProperty = |
|||
AvaloniaProperty.RegisterDirect<DropDown, bool>( |
|||
nameof(IsDropDownOpen), |
|||
o => o.IsDropDownOpen, |
|||
(o, v) => o.IsDropDownOpen = v); |
|||
|
|||
/// <summary>
|
|||
/// Defines the <see cref="MaxDropDownHeight"/> property.
|
|||
/// </summary>
|
|||
public static readonly StyledProperty<double> MaxDropDownHeightProperty = |
|||
AvaloniaProperty.Register<DropDown, double>(nameof(MaxDropDownHeight), 200); |
|||
|
|||
/// <summary>
|
|||
/// Defines the <see cref="SelectionBoxItem"/> property.
|
|||
/// </summary>
|
|||
public static readonly DirectProperty<DropDown, object> SelectionBoxItemProperty = |
|||
AvaloniaProperty.RegisterDirect<DropDown, object>(nameof(SelectionBoxItem), o => o.SelectionBoxItem); |
|||
|
|||
/// <summary>
|
|||
/// Defines the <see cref="VirtualizationMode"/> property.
|
|||
/// </summary>
|
|||
public static readonly StyledProperty<ItemVirtualizationMode> VirtualizationModeProperty = |
|||
ItemsPresenter.VirtualizationModeProperty.AddOwner<DropDown>(); |
|||
|
|||
private bool _isDropDownOpen; |
|||
private Popup _popup; |
|||
private object _selectionBoxItem; |
|||
private IDisposable _subscriptionsOnOpen; |
|||
|
|||
/// <summary>
|
|||
/// Initializes static members of the <see cref="DropDown"/> class.
|
|||
/// </summary>
|
|||
static DropDown() |
|||
{ |
|||
ItemsPanelProperty.OverrideDefaultValue<DropDown>(DefaultPanel); |
|||
FocusableProperty.OverrideDefaultValue<DropDown>(true); |
|||
SelectedItemProperty.Changed.AddClassHandler<DropDown>(x => x.SelectedItemChanged); |
|||
KeyDownEvent.AddClassHandler<DropDown>(x => x.OnKeyDown, Interactivity.RoutingStrategies.Tunnel); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets a value indicating whether the dropdown is currently open.
|
|||
/// </summary>
|
|||
public bool IsDropDownOpen |
|||
{ |
|||
get { return _isDropDownOpen; } |
|||
set { SetAndRaise(IsDropDownOpenProperty, ref _isDropDownOpen, value); } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the maximum height for the dropdown list.
|
|||
/// </summary>
|
|||
public double MaxDropDownHeight |
|||
{ |
|||
get { return GetValue(MaxDropDownHeightProperty); } |
|||
set { SetValue(MaxDropDownHeightProperty, value); } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the item to display as the control's content.
|
|||
/// </summary>
|
|||
protected object SelectionBoxItem |
|||
{ |
|||
get { return _selectionBoxItem; } |
|||
set { SetAndRaise(SelectionBoxItemProperty, ref _selectionBoxItem, value); } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the virtualization mode for the items.
|
|||
/// </summary>
|
|||
public ItemVirtualizationMode VirtualizationMode |
|||
{ |
|||
get { return GetValue(VirtualizationModeProperty); } |
|||
set { SetValue(VirtualizationModeProperty, value); } |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override IItemContainerGenerator CreateItemContainerGenerator() |
|||
{ |
|||
return new ItemContainerGenerator<DropDownItem>( |
|||
this, |
|||
DropDownItem.ContentProperty, |
|||
DropDownItem.ContentTemplateProperty); |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnAttachedToLogicalTree(LogicalTreeAttachmentEventArgs e) |
|||
{ |
|||
base.OnAttachedToLogicalTree(e); |
|||
this.UpdateSelectionBoxItem(this.SelectedItem); |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnKeyDown(KeyEventArgs e) |
|||
{ |
|||
base.OnKeyDown(e); |
|||
|
|||
if (e.Handled) |
|||
return; |
|||
|
|||
if (e.Key == Key.F4 || |
|||
((e.Key == Key.Down || e.Key == Key.Up) && ((e.Modifiers & InputModifiers.Alt) != 0))) |
|||
{ |
|||
IsDropDownOpen = !IsDropDownOpen; |
|||
e.Handled = true; |
|||
} |
|||
else if (IsDropDownOpen && e.Key == Key.Escape) |
|||
{ |
|||
IsDropDownOpen = false; |
|||
e.Handled = true; |
|||
} |
|||
else if (IsDropDownOpen && e.Key == Key.Enter) |
|||
{ |
|||
SelectFocusedItem(); |
|||
IsDropDownOpen = false; |
|||
e.Handled = true; |
|||
} |
|||
else if (!IsDropDownOpen) |
|||
{ |
|||
if (e.Key == Key.Down) |
|||
{ |
|||
SelectNext(); |
|||
e.Handled = true; |
|||
} |
|||
else if (e.Key == Key.Up) |
|||
{ |
|||
SelectPrev(); |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
else if (IsDropDownOpen && SelectedIndex < 0 && ItemCount > 0 && |
|||
(e.Key == Key.Up || e.Key == Key.Down)) |
|||
{ |
|||
var firstChild = Presenter?.Panel?.Children.FirstOrDefault(c => CanFocus(c)); |
|||
if (firstChild != null) |
|||
{ |
|||
FocusManager.Instance?.Focus(firstChild, NavigationMethod.Directional); |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnPointerWheelChanged(PointerWheelEventArgs e) |
|||
{ |
|||
base.OnPointerWheelChanged(e); |
|||
|
|||
if (!e.Handled) |
|||
{ |
|||
if (!IsDropDownOpen) |
|||
{ |
|||
if (IsFocused) |
|||
{ |
|||
if (e.Delta.Y < 0) |
|||
SelectNext(); |
|||
else |
|||
SelectPrev(); |
|||
|
|||
e.Handled = true; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnPointerPressed(PointerPressedEventArgs e) |
|||
{ |
|||
if (!e.Handled) |
|||
{ |
|||
if (_popup?.PopupRoot != null && ((IVisual)e.Source).GetVisualRoot() == _popup?.PopupRoot) |
|||
{ |
|||
if (UpdateSelectionFromEventSource(e.Source)) |
|||
{ |
|||
_popup?.Close(); |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
IsDropDownOpen = !IsDropDownOpen; |
|||
e.Handled = true; |
|||
} |
|||
} |
|||
|
|||
base.OnPointerPressed(e); |
|||
} |
|||
|
|||
/// <inheritdoc/>
|
|||
protected override void OnTemplateApplied(TemplateAppliedEventArgs e) |
|||
{ |
|||
if (_popup != null) |
|||
{ |
|||
_popup.Opened -= PopupOpened; |
|||
_popup.Closed -= PopupClosed; |
|||
} |
|||
|
|||
_popup = e.NameScope.Get<Popup>("PART_Popup"); |
|||
_popup.Opened += PopupOpened; |
|||
_popup.Closed += PopupClosed; |
|||
|
|||
base.OnTemplateApplied(e); |
|||
} |
|||
|
|||
internal void ItemFocused(DropDownItem dropDownItem) |
|||
public DropDown() |
|||
{ |
|||
if (IsDropDownOpen && dropDownItem.IsFocused && dropDownItem.IsArrangeValid) |
|||
{ |
|||
dropDownItem.BringIntoView(); |
|||
} |
|||
Logger.Warning(LogArea.Control, this, "DropDown is deprecated: Use ComboBox"); |
|||
} |
|||
|
|||
private void PopupClosed(object sender, EventArgs e) |
|||
{ |
|||
_subscriptionsOnOpen?.Dispose(); |
|||
_subscriptionsOnOpen = null; |
|||
|
|||
if (CanFocus(this)) |
|||
{ |
|||
Focus(); |
|||
} |
|||
} |
|||
|
|||
private void PopupOpened(object sender, EventArgs e) |
|||
{ |
|||
TryFocusSelectedItem(); |
|||
|
|||
_subscriptionsOnOpen?.Dispose(); |
|||
_subscriptionsOnOpen = null; |
|||
|
|||
var toplevel = this.GetVisualRoot() as TopLevel; |
|||
if (toplevel != null) |
|||
{ |
|||
_subscriptionsOnOpen = toplevel.AddHandler(PointerWheelChangedEvent, (s, ev) => |
|||
{ |
|||
//eat wheel scroll event outside dropdown popup while it's open
|
|||
if (IsDropDownOpen && (ev.Source as IVisual).GetVisualRoot() == toplevel) |
|||
{ |
|||
ev.Handled = true; |
|||
} |
|||
}, Interactivity.RoutingStrategies.Tunnel); |
|||
} |
|||
} |
|||
|
|||
private void SelectedItemChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
UpdateSelectionBoxItem(e.NewValue); |
|||
TryFocusSelectedItem(); |
|||
} |
|||
|
|||
private void TryFocusSelectedItem() |
|||
{ |
|||
var selectedIndex = SelectedIndex; |
|||
if (IsDropDownOpen && selectedIndex != -1) |
|||
{ |
|||
var container = ItemContainerGenerator.ContainerFromIndex(selectedIndex); |
|||
|
|||
if (container == null && SelectedItems.Count > 0) |
|||
{ |
|||
ScrollIntoView(SelectedItems[0]); |
|||
container = ItemContainerGenerator.ContainerFromIndex(selectedIndex); |
|||
} |
|||
|
|||
if (container != null && CanFocus(container)) |
|||
{ |
|||
container.Focus(); |
|||
} |
|||
} |
|||
} |
|||
|
|||
private bool CanFocus(IControl control) => control.Focusable && control.IsEnabledCore && control.IsVisible; |
|||
|
|||
private void UpdateSelectionBoxItem(object item) |
|||
{ |
|||
var contentControl = item as IContentControl; |
|||
|
|||
if (contentControl != null) |
|||
{ |
|||
item = contentControl.Content; |
|||
} |
|||
|
|||
var control = item as IControl; |
|||
|
|||
if (control != null) |
|||
{ |
|||
control.Measure(Size.Infinity); |
|||
|
|||
SelectionBoxItem = new Rectangle |
|||
{ |
|||
Width = control.DesiredSize.Width, |
|||
Height = control.DesiredSize.Height, |
|||
Fill = new VisualBrush |
|||
{ |
|||
Visual = control, |
|||
Stretch = Stretch.None, |
|||
AlignmentX = AlignmentX.Left, |
|||
} |
|||
}; |
|||
} |
|||
else |
|||
{ |
|||
var selector = MemberSelector; |
|||
SelectionBoxItem = selector != null ? selector.Select(item) : item; |
|||
} |
|||
} |
|||
|
|||
private void SelectFocusedItem() |
|||
{ |
|||
foreach (ItemContainerInfo dropdownItem in ItemContainerGenerator.Containers) |
|||
{ |
|||
if (dropdownItem.ContainerControl.IsFocused) |
|||
{ |
|||
SelectedIndex = dropdownItem.Index; |
|||
break; |
|||
} |
|||
} |
|||
} |
|||
Type IStyleable.StyleKey => typeof(ComboBox); |
|||
} |
|||
|
|||
private void SelectNext() |
|||
[Obsolete("Use ComboBoxItem")] |
|||
public class DropDownItem : ComboBoxItem, IStyleable |
|||
{ |
|||
public DropDownItem() |
|||
{ |
|||
int next = SelectedIndex + 1; |
|||
|
|||
if (next >= ItemCount) |
|||
next = 0; |
|||
|
|||
SelectedIndex = next; |
|||
Logger.Warning(LogArea.Control, this, "DropDownItem is deprecated: Use ComboBoxItem"); |
|||
} |
|||
|
|||
private void SelectPrev() |
|||
{ |
|||
int prev = SelectedIndex - 1; |
|||
|
|||
if (prev < 0) |
|||
prev = ItemCount - 1; |
|||
|
|||
SelectedIndex = prev; |
|||
} |
|||
Type IStyleable.StyleKey => typeof(ComboBoxItem); |
|||
} |
|||
} |
|||
|
|||
@ -1,9 +1,11 @@ |
|||
namespace Avalonia.Platform |
|||
using System.Collections.Generic; |
|||
|
|||
namespace Avalonia.Platform |
|||
{ |
|||
public interface IScreenImpl |
|||
{ |
|||
int ScreenCount { get; } |
|||
|
|||
Screen[] AllScreens { get; } |
|||
IReadOnlyList<Screen> AllScreens { get; } |
|||
} |
|||
} |
|||
} |
|||
|
|||
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