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+#region License
+//
+// The Open Toolkit Library License
+//
+// Copyright (c) 2006 - 2010 the Open Toolkit library.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do
+// so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+//
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using OpenTK.Input;
+
+namespace X11Sharp
+{
+ // Standard keyboard driver that relies on xlib input events.
+ // Only one keyboard supported.
+ sealed class X11Keyboard : IKeyboardDriver2
+ {
+ readonly static string name = "Core X11 keyboard";
+ readonly byte[] keys = new byte[32];
+ readonly int KeysymsPerKeycode;
+ readonly X11KeyMap KeyMap;
+ KeyboardState state = new KeyboardState();
+
+ public X11Keyboard()
+ {
+ Debug.WriteLine("Using X11Keyboard.");
+ state.IsConnected = true;
+
+ IntPtr display = API.DefaultDisplay;
+ using (new XLock(display))
+ {
+ // Find the number of keysyms per keycode.
+ int first = 0, last = 0;
+ API.DisplayKeycodes(display, ref first, ref last);
+ IntPtr keysym_ptr =
+ API.GetKeyboardMapping(display,
+ (byte)first,
+ last - first + 1,
+ ref KeysymsPerKeycode);
+ Functions.XFree(keysym_ptr);
+
+ if (Xkb.IsSupported(display))
+ {
+ // Request that auto-repeat is only set on devices that support it physically.
+ // This typically means that it's turned off for keyboards what we want).
+ // We prefer this method over XAutoRepeatOff/On, because the latter needs to
+ // be reset before the program exits.
+ bool supported;
+ Xkb.SetDetectableAutoRepeat(display, true, out supported);
+ KeyMap = new X11KeyMap(display);
+ }
+ }
+ }
+
+ public KeyboardState GetState()
+ {
+ ProcessEvents();
+ return state;
+ }
+
+ public KeyboardState GetState(int index)
+ {
+ // X11Keyboard supports a single keyboard only
+ ProcessEvents();
+ if (index == 0)
+ return state;
+ else
+ return new KeyboardState();
+ }
+
+ public string GetDeviceName(int index)
+ {
+ if (index == 0)
+ return name;
+ else
+ return String.Empty;
+ }
+
+ void ProcessEvents()
+ {
+ IntPtr display = API.DefaultDisplay;
+ using (new XLock(display))
+ {
+ Functions.XQueryKeymap(display, keys);
+ for (int keycode = 0; keycode < 256; keycode++)
+ {
+ bool pressed = (keys[keycode >> 3] >> (keycode & 0x07) & 0x01) != 0;
+ Key key;
+ if (KeyMap.TranslateKey(keycode, out key))
+ {
+ state[key] = pressed;
+ }
+ }
+ }
+ }
+ }
+}
+