wehub-resource-sync
165 lines
3.8 KiB
C#
165 lines
3.8 KiB
C#
namespace T3.SystemUi;
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/// <summary>
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/// Note: The actually handling is implemented differently in Editor and Player.
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///
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/// Its values are set directly in the windows forms WndProc message handling
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/// using the <see cref="Key"/>-code provided by the Windows event.
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/// </summary>
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public static class KeyHandler
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{
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private static readonly bool[] PressedKeysPrivate = new bool[512];
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public static readonly IReadOnlyList<bool> PressedKeys = PressedKeysPrivate;
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public static bool IsKeyPressed(Key keyCode) => IsKeyPressed((int)keyCode);
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public static void SetKeyDown(Key keyCode) => SetKeyPressed((int)keyCode, true);
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public static void SetKeyDown(int keyCode) => SetKeyPressed(keyCode, true);
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public static void SetKeyUp(Key keyCode) => SetKeyPressed((int)keyCode, false);
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public static void SetKeyUp(int keyCode) => SetKeyPressed(keyCode, false);
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/// <summary>
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/// Releases all keys. Key-up events are lost while the app is unfocused
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/// (Alt+Tab, debugger breakpoints), so the tracked state must be reset then.
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/// </summary>
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public static void ReleaseAllKeys() => Array.Clear(PressedKeysPrivate, 0, PressedKeysPrivate.Length);
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public static Key GetPressedKey()
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{
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for (var index = 0; index < PressedKeysPrivate.Length; index++)
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{
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if (PressedKeysPrivate[index])
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return (Key)index;
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}
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return Key.Undefined;
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}
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public static bool IsKeyPressed(int keyCode)
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{
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if (keyCode < 0 || keyCode >= PressedKeysPrivate.Length)
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{
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Console.WriteLine($"KeyHandler: Invalid key code {keyCode}");
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return false;
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}
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return PressedKeysPrivate[keyCode];
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}
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private static void SetKeyPressed(int keyCode, bool value)
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{
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if (keyCode < 0 || keyCode >= PressedKeysPrivate.Length)
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{
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Console.WriteLine($"KeyHandler: Invalid key code {keyCode}");
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return;
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}
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PressedKeysPrivate[keyCode] = value;
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}
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}
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/// <summary>
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/// This enumeration is directly derived from <see cref="System.Windows.Forms.Keys"/>.
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/// Make sure to not confuse these with ImGuiKey enumeration.
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/// </summary>
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public enum Key // Todo: can we make this frontend-agnostic?
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{
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Undefined = 0,
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D0 = 48,
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D1 = 49,
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D2 = 50,
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D3 = 51,
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D4 = 52,
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D5 = 53,
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D6 = 54,
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D7 = 55,
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D8 = 56,
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D9 = 57,
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A = 65,
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B = 66,
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C = 67,
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D = 68,
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E = 69,
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F = 70,
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G = 71,
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H = 72,
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I = 73,
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J = 74,
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K = 75,
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L = 76,
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M = 77,
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N = 78,
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O = 79,
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P = 80,
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Q = 81,
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R = 82,
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S = 83,
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T = 84,
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U = 85,
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V = 86,
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W = 87,
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X = 88,
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Y = 89,
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Z = 90,
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Backspace = 8,
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Delete = 46,
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// LeftShift,
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// RightShift,
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// LeftCtrl,
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ShiftKey = 16,
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CtrlKey = 17,
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End = 0x23,
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Home = 0x24,
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F1 = 112,
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F2 = 113,
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F3 = 114,
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F4 = 115,
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F5 = 116,
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F6 = 117,
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F7 = 118,
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F8 = 119,
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F9 = 120,
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F10 = 121,
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F11 = 122,
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F12 = 123,
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F13 = 124,
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F14 = 125,
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F15 = 126,
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F16 = 127,
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F17 = 128,
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F18 = 129,
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F19 = 130,
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F20 = 131,
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F21 = 132,
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F22 = 133,
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F23 = 134,
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F24 = 135,
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Plus = 187,
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Tab = 9,
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CursorUp = 38,
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CursorDown = 40,
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CursorLeft = 37,
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CursorRight = 39,
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Return = 13,
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CapsLock = 20,
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Esc = 27,
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Equal = 187,
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Minus = 189,
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Space = 32,
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SquareBracketLeft = 219,
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SquareBracketRight = 221,
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Comma = 188,
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Period = 190,
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Slash = 191,
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Pipe = 192,
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Alt = 18,
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Ins = 45,
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PageUp = 33,
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PageDown = 34,
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Semicolon = 186,
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Apostrophe = 226,
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HashTag = 220,
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} |