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https://github.com/Ryujinx/Opentk.git
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ea0c845eb0
SDL2 does not report keydown and keyup events on modifiers keys until you release them. Attempted to fix this using SDL_GetModifierState, but this does not appear to work. Should hit upstream.
111 lines
4.3 KiB
C#
111 lines
4.3 KiB
C#
#region License
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//
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// The Open Toolkit Library License
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//
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// Copyright (c) 2006 - 2013 Stefanos Apostolopoulos for the Open Toolkit library.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do
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// so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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//
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#endregion
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using System;
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using OpenTK.Input;
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namespace OpenTK.Platform.SDL2
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{
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class Sdl2Keyboard : IKeyboardDriver2
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{
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static readonly Sdl2KeyMap KeyMap = new Sdl2KeyMap();
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KeyboardState state;
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public Sdl2Keyboard()
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{
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state.IsConnected = true;
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}
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#region Private Members
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// Unfortunately, SDL does not report KeyDown events
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// when a modifier (e.g. shift, alt, etc) is first pressed.
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// It reports a keydown+keyup event pair when the modifier
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// is *released* - which means that we cannot use modifiers
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// for regular input (e.g. press control to fire a weapon.)
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// For that reason, we should also poll the keyboard directly
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// as necessary.
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// Fixme: this does not appear to work as expected.
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void UpdateModifiers()
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{
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SDL.SDL_Keymod mod = SDL.SDL_GetModState();
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state.SetKeyState(Key.LAlt, (byte)SDL.SDL_Scancode.SDL_SCANCODE_LALT, (mod & SDL.SDL_Keymod.KMOD_LALT) != 0);
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state.SetKeyState(Key.RAlt, (byte)SDL.SDL_Scancode.SDL_SCANCODE_RALT, (mod & SDL.SDL_Keymod.KMOD_RALT) != 0);
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state.SetKeyState(Key.LControl, (byte)SDL.SDL_Scancode.SDL_SCANCODE_LCTRL, (mod & SDL.SDL_Keymod.KMOD_LCTRL) != 0);
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state.SetKeyState(Key.RControl, (byte)SDL.SDL_Scancode.SDL_SCANCODE_RCTRL, (mod & SDL.SDL_Keymod.KMOD_RCTRL) != 0);
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state.SetKeyState(Key.LShift, (byte)SDL.SDL_Scancode.SDL_SCANCODE_LSHIFT, (mod & SDL.SDL_Keymod.KMOD_LSHIFT) != 0);
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state.SetKeyState(Key.RShift, (byte)SDL.SDL_Scancode.SDL_SCANCODE_RSHIFT, (mod & SDL.SDL_Keymod.KMOD_RSHIFT) != 0);
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state.SetKeyState(Key.Menu, (byte)SDL.SDL_Scancode.SDL_SCANCODE_APPLICATION, (mod & SDL.SDL_Keymod.KMOD_GUI) != 0);
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state.SetKeyState(Key.CapsLock, (byte)SDL.SDL_Scancode.SDL_SCANCODE_CAPSLOCK, (mod & SDL.SDL_Keymod.KMOD_CAPS) != 0);
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state.SetKeyState(Key.NumLock, (byte)SDL.SDL_Scancode.SDL_SCANCODE_NUMLOCKCLEAR, (mod & SDL.SDL_Keymod.KMOD_NUM) != 0);
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//state.SetKeyState(Key., (byte)SDL.SDL_Scancode.SDL_SCANCODE_MODE, (mod & SDL.SDL_Keymod.KMOD_MODE) != 0);
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}
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#endregion
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#region Internal Members
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internal void ProcessKeyboardEvent(SDL.SDL_KeyboardEvent e)
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{
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Key key;
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bool pressed = e.state != 0;
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if (KeyMap.TryGetValue(e.keysym.scancode, out key))
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{
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state.SetKeyState(key, (byte)e.keysym.scancode, pressed);
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}
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}
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#endregion
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#region IKeyboardDriver2 Members
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public KeyboardState GetState()
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{
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//UpdateModifiers(); // Fixme
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return state;
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}
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public KeyboardState GetState(int index)
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{
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//UpdateModifiers(); // Fixme
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if (index == 0)
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return state;
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else
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return new KeyboardState();
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}
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public string GetDeviceName(int index)
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{
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return "SDL2 Default Keyboard";
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}
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#endregion
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}
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}
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