Benedikt Schroeder
9 years ago
18 changed files with 582 additions and 136 deletions
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using System; |
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using System.Globalization; |
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using System.Linq; |
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namespace Avalonia |
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{ |
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public struct CornerRadius |
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{ |
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public CornerRadius(double uniformRadius) |
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{ |
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TopLeft = TopRight = BottomLeft = BottomRight = uniformRadius; |
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} |
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public CornerRadius(double top, double bottom) |
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{ |
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TopLeft = TopRight = top; |
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BottomLeft = BottomRight = bottom; |
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} |
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public CornerRadius(double topLeft, double topRight, double bottomRight, double bottomLeft) |
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{ |
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TopLeft = topLeft; |
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TopRight = topRight; |
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BottomRight = bottomRight; |
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BottomLeft = bottomLeft; |
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} |
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public double TopLeft { get; } |
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public double TopRight { get; } |
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public double BottomRight { get; } |
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public double BottomLeft { get; } |
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public bool IsEmpty => TopLeft.Equals(0) && IsUniform; |
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public bool IsUniform => TopLeft.Equals(TopRight) && BottomLeft.Equals(BottomRight) && TopRight.Equals(BottomRight); |
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public override bool Equals(object obj) |
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{ |
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if (obj is CornerRadius) |
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{ |
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return this == (CornerRadius)obj; |
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} |
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return false; |
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} |
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public override int GetHashCode() |
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{ |
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return TopLeft.GetHashCode() ^ TopRight.GetHashCode() ^ BottomLeft.GetHashCode() ^ BottomRight.GetHashCode(); |
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} |
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public override string ToString() |
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{ |
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return $"{TopLeft},{TopRight},{BottomRight},{BottomLeft}"; |
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} |
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public static CornerRadius Parse(string s, CultureInfo culture) |
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{ |
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var parts = s.Split(new[] { ',', ' ' }, StringSplitOptions.RemoveEmptyEntries) |
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.Select(x => x.Trim()) |
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.ToList(); |
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switch (parts.Count) |
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{ |
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case 1: |
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var uniform = double.Parse(parts[0], culture); |
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return new CornerRadius(uniform); |
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case 2: |
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var top = double.Parse(parts[0], culture); |
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var bottom = double.Parse(parts[1], culture); |
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return new CornerRadius(top, bottom); |
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case 4: |
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var topLeft = double.Parse(parts[0], culture); |
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var topRight = double.Parse(parts[1], culture); |
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var bottomRight = double.Parse(parts[2], culture); |
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var bottomLeft = double.Parse(parts[3], culture); |
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return new CornerRadius(topLeft, topRight, bottomRight, bottomLeft); |
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default: |
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{ |
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throw new FormatException("Invalid CornerRadius."); |
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} |
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} |
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} |
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public static bool operator ==(CornerRadius cr1, CornerRadius cr2) |
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{ |
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return ((cr1.TopLeft.Equals(cr2.TopLeft) || double.IsNaN(cr1.TopLeft) && double.IsNaN(cr2.TopLeft))) |
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&& (cr1.TopRight.Equals(cr2.TopRight) || (double.IsNaN(cr1.TopRight) && double.IsNaN(cr2.TopRight))) |
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&& (cr1.BottomRight.Equals(cr2.BottomRight) || double.IsNaN(cr1.BottomRight) && double.IsNaN(cr2.BottomRight)) |
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&& (cr1.BottomLeft.Equals(cr2.BottomLeft) || double.IsNaN(cr1.BottomLeft) && double.IsNaN(cr2.BottomLeft)); |
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} |
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public static bool operator !=(CornerRadius cr1, CornerRadius cr2) |
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{ |
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return (!(cr1 == cr2)); |
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} |
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} |
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} |
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@ -0,0 +1,19 @@ |
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using System; |
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using System.ComponentModel; |
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using System.Globalization; |
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namespace Avalonia.Markup.Xaml.Converters |
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{ |
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public class CornerRadiusTypeConverter : TypeConverter |
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{ |
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public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) |
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{ |
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return sourceType == typeof(string); |
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} |
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public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) |
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{ |
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return CornerRadius.Parse((string)value, culture); |
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} |
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} |
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} |
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@ -0,0 +1,43 @@ |
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// Copyright (c) The Avalonia Project. All rights reserved.
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// Licensed under the MIT license. See licence.md file in the project root for full license information.
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using System.Globalization; |
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using Xunit; |
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namespace Avalonia.Visuals.UnitTests |
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{ |
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public class CornerRadiusTests |
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{ |
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[Fact] |
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public void Parse_Parses_Single_Uniform_Radius() |
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{ |
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var result = CornerRadius.Parse("3.4", CultureInfo.InvariantCulture); |
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Assert.Equal(new CornerRadius(3.4), result); |
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} |
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[Fact] |
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public void Parse_Parses_Top_Bottom() |
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{ |
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var result = CornerRadius.Parse("1.1,2.2", CultureInfo.InvariantCulture); |
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Assert.Equal(new CornerRadius(1.1, 2.2), result); |
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} |
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[Fact] |
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public void Parse_Parses_TopLeft_TopRight_BottomRight_BottomLeft() |
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{ |
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var result = CornerRadius.Parse("1.1,2.2,3.3,4.4", CultureInfo.InvariantCulture); |
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Assert.Equal(new CornerRadius(1.1, 2.2, 3.3, 4.4), result); |
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} |
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[Fact] |
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public void Parse_Accepts_Spaces() |
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{ |
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var result = CornerRadius.Parse("1.1 2.2 3.3 4.4", CultureInfo.InvariantCulture); |
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Assert.Equal(new CornerRadius(1.1, 2.2, 3.3, 4.4), result); |
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} |
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} |
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} |
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