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@ -1,41 +1,56 @@ |
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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.Collections.Generic; |
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using System.Linq; |
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namespace Avalonia.Input |
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{ |
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/// <summary>
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/// Defines a keyboard input combination.
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/// </summary>
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public sealed class KeyGesture : IEquatable<KeyGesture> |
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{ |
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public KeyGesture() |
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private static readonly Dictionary<string, Key> s_keySynonyms = new Dictionary<string, Key> |
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{ |
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{ "+", Key.OemPlus }, { "-", Key.OemMinus }, { ".", Key.OemPeriod } |
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}; |
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[Obsolete("Use constructor taking KeyModifiers")] |
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public KeyGesture(Key key, InputModifiers modifiers) |
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{ |
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Key = key; |
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KeyModifiers = (KeyModifiers)(((int)modifiers) & 0xf); |
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} |
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public KeyGesture(Key key, InputModifiers modifiers = InputModifiers.None) |
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public KeyGesture(Key key, KeyModifiers modifiers = KeyModifiers.None) |
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{ |
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Key = key; |
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Modifiers = modifiers; |
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KeyModifiers = modifiers; |
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} |
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public bool Equals(KeyGesture other) |
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{ |
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if (ReferenceEquals(null, other)) return false; |
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if (ReferenceEquals(this, other)) return true; |
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return Key == other.Key && Modifiers == other.Modifiers; |
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return Key == other.Key && KeyModifiers == other.KeyModifiers; |
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} |
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public override bool Equals(object obj) |
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{ |
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if (ReferenceEquals(null, obj)) return false; |
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if (ReferenceEquals(this, obj)) return true; |
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return obj is KeyGesture && Equals((KeyGesture) obj); |
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return obj is KeyGesture && Equals((KeyGesture)obj); |
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} |
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public override int GetHashCode() |
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{ |
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unchecked |
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{ |
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return ((int) Key*397) ^ (int) Modifiers; |
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return ((int)Key * 397) ^ (int)KeyModifiers; |
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} |
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} |
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@ -49,85 +64,85 @@ namespace Avalonia.Input |
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return !Equals(left, right); |
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} |
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public Key Key { get; set; } |
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public Key Key { get; } |
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[Obsolete("Use KeyModifiers")] |
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public InputModifiers Modifiers |
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{ |
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get => (InputModifiers)KeyModifiers; |
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set => KeyModifiers = (KeyModifiers)(((int)value) & 0xf); |
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} |
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public KeyModifiers KeyModifiers { get; set; } |
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public InputModifiers Modifiers => (InputModifiers)KeyModifiers; |
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static readonly Dictionary<string, Key> KeySynonyms = new Dictionary<string, Key> |
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{ |
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{"+", Key.OemPlus }, |
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{"-", Key.OemMinus}, |
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{".", Key.OemPeriod } |
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}; |
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//TODO: Move that to external key parser
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static Key ParseKey(string key) |
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{ |
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Key rv; |
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if (KeySynonyms.TryGetValue(key.ToLower(), out rv)) |
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return rv; |
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return (Key)Enum.Parse(typeof (Key), key, true); |
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} |
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static InputModifiers ParseModifier(string modifier) |
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{ |
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if (modifier.Equals("ctrl", StringComparison.OrdinalIgnoreCase)) |
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return InputModifiers.Control; |
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return (InputModifiers) Enum.Parse(typeof (InputModifiers), modifier, true); |
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} |
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public KeyModifiers KeyModifiers { get; } |
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public static KeyGesture Parse(string gesture) |
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{ |
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//string.Split can't be used here because "Ctrl++" is a perfectly valid key gesture
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// string.Split can't be used here because "Ctrl++" is a perfectly valid key gesture
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var parts = new List<string>(); |
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var key = Key.None; |
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var keyModifiers = KeyModifiers.None; |
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var cstart = 0; |
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for (var c = 0; c <= gesture.Length; c++) |
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{ |
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var ch = c == gesture.Length ? '\0' : gesture[c]; |
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if (c == gesture.Length || (ch == '+' && cstart != c)) |
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bool isLast = c == gesture.Length; |
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if (isLast || (ch == '+' && cstart != c)) |
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{ |
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parts.Add(gesture.Substring(cstart, c - cstart)); |
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var partSpan = gesture.AsSpan(cstart, c - cstart).Trim(); |
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if (isLast) |
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{ |
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key = ParseKey(partSpan.ToString()); |
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} |
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else |
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{ |
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keyModifiers |= ParseModifier(partSpan); |
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} |
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cstart = c + 1; |
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} |
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} |
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for (var c = 0; c < parts.Count; c++) |
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parts[c] = parts[c].Trim(); |
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var rv = new KeyGesture(); |
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for (var c = 0; c < parts.Count; c++) |
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{ |
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if (c == parts.Count - 1) |
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rv.Key = ParseKey(parts[c]); |
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else |
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rv.Modifiers |= ParseModifier(parts[c]); |
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} |
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return rv; |
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return new KeyGesture(key, keyModifiers); |
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} |
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public override string ToString() |
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{ |
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var parts = new List<string>(); |
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foreach (var flag in Enum.GetValues(typeof (InputModifiers)).Cast<InputModifiers>()) |
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foreach (var flag in Enum.GetValues(typeof(KeyModifiers)).Cast<KeyModifiers>()) |
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{ |
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if (Modifiers.HasFlag(flag) && flag != InputModifiers.None) |
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if (KeyModifiers.HasFlag(flag) && flag != KeyModifiers.None) |
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{ |
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parts.Add(flag.ToString()); |
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} |
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} |
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parts.Add(Key.ToString()); |
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return string.Join(" + ", parts); |
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} |
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public bool Matches(KeyEventArgs keyEvent) => ResolveNumPadOperationKey(keyEvent.Key) == Key && keyEvent.Modifiers == Modifiers; |
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public bool Matches(KeyEventArgs keyEvent) => ResolveNumPadOperationKey(keyEvent.Key) == Key && keyEvent.KeyModifiers == KeyModifiers; |
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// TODO: Move that to external key parser
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private static Key ParseKey(string key) |
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{ |
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if (s_keySynonyms.TryGetValue(key.ToLower(), out Key rv)) |
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return rv; |
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return (Key)Enum.Parse(typeof(Key), key, true); |
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} |
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private static KeyModifiers ParseModifier(ReadOnlySpan<char> modifier) |
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{ |
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if (modifier.Equals("ctrl".AsSpan(), StringComparison.OrdinalIgnoreCase)) |
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{ |
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return KeyModifiers.Control; |
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} |
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return (KeyModifiers)Enum.Parse(typeof(KeyModifiers), modifier.ToString(), true); |
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} |
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private Key ResolveNumPadOperationKey(Key key) |
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{ |
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Jumar Macato
7 years ago
GitHub