RetroArch/input/drivers_keyboard/keyboard_event_x11.c
2017-01-22 13:40:32 +01:00

107 lines
3.1 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysymdef.h>
#include <X11/extensions/xf86vmode.h>
#include <boolean.h>
#include <retro_inline.h>
#include <encodings/utf.h>
#include <retro_miscellaneous.h>
#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif
#ifdef HAVE_XINERAMA
#include <X11/extensions/Xinerama.h>
#endif
#include "../input_keyboard.h"
#include "../input_keymaps.h"
void x11_handle_key_event(XEvent *event, XIC ic, bool filter)
{
int i;
unsigned key;
unsigned state = event->xkey.state;
uint16_t mod = 0;
uint32_t chars[32];
bool down = event->type == KeyPress;
int num = 0;
KeySym keysym = 0;
chars[0] = '\0';
if (!filter)
{
if (down)
{
char keybuf[32];
keybuf[0] = '\0';
#ifdef X_HAVE_UTF8_STRING
Status status = 0;
/* XwcLookupString doesn't seem to work. */
num = Xutf8LookupString(ic, &event->xkey, keybuf, ARRAY_SIZE(keybuf), &keysym, &status);
/* libc functions need UTF-8 locale to work properly,
* which makes mbrtowc a bit impractical.
*
* Use custom UTF8 -> UTF-32 conversion. */
num = utf8_conv_utf32(chars, ARRAY_SIZE(chars), keybuf, num);
#else
(void)ic;
num = XLookupString(&event->xkey, keybuf, sizeof(keybuf), &keysym, NULL); /* ASCII only. */
for (i = 0; i < num; i++)
chars[i] = keybuf[i] & 0x7f;
#endif
}
else
keysym = XLookupKeysym(&event->xkey, (state & ShiftMask) || (state & LockMask));
}
/* We can't feed uppercase letters to the keycode translator. Seems like a bad idea
* to feed it keysyms anyway, so here is a little hack... */
if (keysym >= XK_A && keysym <= XK_Z)
keysym += XK_z - XK_Z;
key = input_keymaps_translate_keysym_to_rk(keysym);
if (state & ShiftMask)
mod |= RETROKMOD_SHIFT;
if (state & LockMask)
mod |= RETROKMOD_CAPSLOCK;
if (state & ControlMask)
mod |= RETROKMOD_CTRL;
if (state & Mod1Mask)
mod |= RETROKMOD_ALT;
if (state & Mod4Mask)
mod |= RETROKMOD_META;
if (IsKeypadKey(keysym))
mod |= RETROKMOD_NUMLOCK;
input_keyboard_event(down, key, chars[0], mod, RETRO_DEVICE_KEYBOARD);
for (i = 1; i < num; i++)
input_keyboard_event(down, RETROK_UNKNOWN,
chars[i], mod, RETRO_DEVICE_KEYBOARD);
}