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kc3-lang/SDL/src/video/x11/SDL_x11keyboard.c
Sam Lantinga
- src/video/x11/SDL_x11keyboard.c
-
/* Simple DirectMedia Layer Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org> This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. */ #include "SDL_config.h" #if SDL_VIDEO_DRIVER_X11 #include "SDL_x11video.h" #include "../../events/SDL_keyboard_c.h" #include "../../events/scancodes_darwin.h" #include "../../events/scancodes_xfree86.h" #include <X11/keysym.h> #include "imKStoUCS.h" /* *INDENT-OFF* */ static const struct { KeySym keysym; SDL_Scancode scancode; } KeySymToSDLScancode[] = { { XK_Return, SDL_SCANCODE_RETURN }, { XK_Escape, SDL_SCANCODE_ESCAPE }, { XK_BackSpace, SDL_SCANCODE_BACKSPACE }, { XK_Tab, SDL_SCANCODE_TAB }, { XK_Caps_Lock, SDL_SCANCODE_CAPSLOCK }, { XK_F1, SDL_SCANCODE_F1 }, { XK_F2, SDL_SCANCODE_F2 }, { XK_F3, SDL_SCANCODE_F3 }, { XK_F4, SDL_SCANCODE_F4 }, { XK_F5, SDL_SCANCODE_F5 }, { XK_F6, SDL_SCANCODE_F6 }, { XK_F7, SDL_SCANCODE_F7 }, { XK_F8, SDL_SCANCODE_F8 }, { XK_F9, SDL_SCANCODE_F9 }, { XK_F10, SDL_SCANCODE_F10 }, { XK_F11, SDL_SCANCODE_F11 }, { XK_F12, SDL_SCANCODE_F12 }, { XK_Print, SDL_SCANCODE_PRINTSCREEN }, { XK_Scroll_Lock, SDL_SCANCODE_SCROLLLOCK }, { XK_Pause, SDL_SCANCODE_PAUSE }, { XK_Insert, SDL_SCANCODE_INSERT }, { XK_Home, SDL_SCANCODE_HOME }, { XK_Prior, SDL_SCANCODE_PAGEUP }, { XK_Delete, SDL_SCANCODE_DELETE }, { XK_End, SDL_SCANCODE_END }, { XK_Next, SDL_SCANCODE_PAGEDOWN }, { XK_Right, SDL_SCANCODE_RIGHT }, { XK_Left, SDL_SCANCODE_LEFT }, { XK_Down, SDL_SCANCODE_DOWN }, { XK_Up, SDL_SCANCODE_UP }, { XK_Num_Lock, SDL_SCANCODE_NUMLOCKCLEAR }, { XK_KP_Divide, SDL_SCANCODE_KP_DIVIDE }, { XK_KP_Multiply, SDL_SCANCODE_KP_MULTIPLY }, { XK_KP_Subtract, SDL_SCANCODE_KP_MINUS }, { XK_KP_Add, SDL_SCANCODE_KP_PLUS }, { XK_KP_Enter, SDL_SCANCODE_KP_ENTER }, { XK_KP_Delete, SDL_SCANCODE_KP_PERIOD }, { XK_KP_End, SDL_SCANCODE_KP_1 }, { XK_KP_Down, SDL_SCANCODE_KP_2 }, { XK_KP_Next, SDL_SCANCODE_KP_3 }, { XK_KP_Left, SDL_SCANCODE_KP_4 }, { XK_KP_Begin, SDL_SCANCODE_KP_5 }, { XK_KP_Right, SDL_SCANCODE_KP_6 }, { XK_KP_Home, SDL_SCANCODE_KP_7 }, { XK_KP_Up, SDL_SCANCODE_KP_8 }, { XK_KP_Prior, SDL_SCANCODE_KP_9 }, { XK_KP_Insert, SDL_SCANCODE_KP_0 }, { XK_KP_Decimal, SDL_SCANCODE_KP_PERIOD }, { XK_KP_1, SDL_SCANCODE_KP_1 }, { XK_KP_2, SDL_SCANCODE_KP_2 }, { XK_KP_3, SDL_SCANCODE_KP_3 }, { XK_KP_4, SDL_SCANCODE_KP_4 }, { XK_KP_5, SDL_SCANCODE_KP_5 }, { XK_KP_6, SDL_SCANCODE_KP_6 }, { XK_KP_7, SDL_SCANCODE_KP_7 }, { XK_KP_8, SDL_SCANCODE_KP_8 }, { XK_KP_9, SDL_SCANCODE_KP_9 }, { XK_KP_0, SDL_SCANCODE_KP_0 }, { XK_KP_Decimal, SDL_SCANCODE_KP_PERIOD }, { XK_Hyper_R, SDL_SCANCODE_APPLICATION }, { XK_KP_Equal, SDL_SCANCODE_KP_EQUALS }, { XK_F13, SDL_SCANCODE_F13 }, { XK_F14, SDL_SCANCODE_F14 }, { XK_F15, SDL_SCANCODE_F15 }, { XK_F16, SDL_SCANCODE_F16 }, { XK_F17, SDL_SCANCODE_F17 }, { XK_F18, SDL_SCANCODE_F18 }, { XK_F19, SDL_SCANCODE_F19 }, { XK_F20, SDL_SCANCODE_F20 }, { XK_F21, SDL_SCANCODE_F21 }, { XK_F22, SDL_SCANCODE_F22 }, { XK_F23, SDL_SCANCODE_F23 }, { XK_F24, SDL_SCANCODE_F24 }, { XK_Execute, SDL_SCANCODE_EXECUTE }, { XK_Help, SDL_SCANCODE_HELP }, { XK_Menu, SDL_SCANCODE_MENU }, { XK_Select, SDL_SCANCODE_SELECT }, { XK_Cancel, SDL_SCANCODE_STOP }, { XK_Redo, SDL_SCANCODE_AGAIN }, { XK_Undo, SDL_SCANCODE_UNDO }, { XK_Find, SDL_SCANCODE_FIND }, { XK_KP_Separator, SDL_SCANCODE_KP_COMMA }, { XK_Sys_Req, SDL_SCANCODE_SYSREQ }, { XK_Control_L, SDL_SCANCODE_LCTRL }, { XK_Shift_L, SDL_SCANCODE_LSHIFT }, { XK_Alt_L, SDL_SCANCODE_LALT }, { XK_Meta_L, SDL_SCANCODE_LGUI }, { XK_Super_L, SDL_SCANCODE_LGUI }, { XK_Control_R, SDL_SCANCODE_RCTRL }, { XK_Shift_R, SDL_SCANCODE_RSHIFT }, { XK_Alt_R, SDL_SCANCODE_RALT }, { XK_Meta_R, SDL_SCANCODE_RGUI }, { XK_Super_R, SDL_SCANCODE_RGUI }, { XK_Mode_switch, SDL_SCANCODE_MODE }, }; static const struct { SDL_Scancode const *table; int table_size; } scancode_set[] = { { darwin_scancode_table, SDL_arraysize(darwin_scancode_table) }, { xfree86_scancode_table, SDL_arraysize(xfree86_scancode_table) }, { xfree86_scancode_table2, SDL_arraysize(xfree86_scancode_table2) }, }; /* *INDENT-OFF* */ /* This function only works for keyboards in US QWERTY layout */ static SDL_Scancode X11_KeyCodeToSDLScancode(Display *display, KeyCode keycode) { KeySym keysym; int i; #if SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM keysym = X11_XkbKeycodeToKeysym(display, keycode, 0, 0); #else keysym = XKeycodeToKeysym(display, keycode, 0); #endif if (keysym == NoSymbol) { return SDL_SCANCODE_UNKNOWN; } if (keysym >= XK_A && keysym <= XK_Z) { return SDL_SCANCODE_A + (keysym - XK_A); } if (keysym >= XK_0 && keysym <= XK_9) { return SDL_SCANCODE_0 + (keysym - XK_0); } for (i = 0; i < SDL_arraysize(KeySymToSDLScancode); ++i) { if (keysym == KeySymToSDLScancode[i].keysym) { return KeySymToSDLScancode[i].scancode; } } return SDL_SCANCODE_UNKNOWN; } static Uint32 X11_KeyCodeToUcs4(Display *display, KeyCode keycode) { KeySym keysym; #if SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM keysym = X11_XkbKeycodeToKeysym(display, keycode, 0, 0); #else keysym = XKeycodeToKeysym(display, keycode, 0); #endif if (keysym == NoSymbol) { return 0; } return X11_KeySymToUcs4(keysym); } int X11_InitKeyboard(_THIS) { SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; int i = 0; int j = 0; int min_keycode, max_keycode; struct { SDL_Scancode scancode; KeySym keysym; int value; } fingerprint[] = { { SDL_SCANCODE_HOME, XK_Home, 0 }, { SDL_SCANCODE_PAGEUP, XK_Prior, 0 }, { SDL_SCANCODE_PAGEDOWN, XK_Next, 0 }, }; SDL_bool fingerprint_detected; X11_XAutoRepeatOn(data->display); /* Try to determine which scancodes are being used based on fingerprint */ fingerprint_detected = SDL_FALSE; X11_XDisplayKeycodes(data->display, &min_keycode, &max_keycode); for (i = 0; i < SDL_arraysize(fingerprint); ++i) { fingerprint[i].value = X11_XKeysymToKeycode(data->display, fingerprint[i].keysym) - min_keycode; } for (i = 0; i < SDL_arraysize(scancode_set); ++i) { /* Make sure the scancode set isn't too big */ if ((max_keycode - min_keycode + 1) <= scancode_set[i].table_size) { continue; } for (j = 0; j < SDL_arraysize(fingerprint); ++j) { if (fingerprint[j].value < 0 || fingerprint[j].value >= scancode_set[i].table_size) { break; } if (scancode_set[i].table[fingerprint[j].value] != fingerprint[j].scancode) { break; } } if (j == SDL_arraysize(fingerprint)) { #ifdef DEBUG_KEYBOARD printf("Using scancode set %d, min_keycode = %d, max_keycode = %d, table_size = %d\n", i, min_keycode, max_keycode, scancode_set[i].table_size); #endif SDL_memcpy(&data->key_layout[min_keycode], scancode_set[i].table, sizeof(SDL_Scancode) * scancode_set[i].table_size); fingerprint_detected = SDL_TRUE; break; } } if (!fingerprint_detected) { SDL_Keycode keymap[SDL_NUM_SCANCODES]; printf ("Keyboard layout unknown, please send the following to the SDL mailing list (sdl@libsdl.org):\n"); /* Determine key_layout - only works on US QWERTY layout */ SDL_GetDefaultKeymap(keymap); for (i = min_keycode; i <= max_keycode; ++i) { KeySym sym; #if SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM sym = X11_XkbKeycodeToKeysym(data->display, i, 0, 0); #else sym = XKeycodeToKeysym(data->display, i, 0); #endif if (sym != NoSymbol) { SDL_Scancode scancode; printf("code = %d, sym = 0x%X (%s) ", i - min_keycode, (unsigned int) sym, X11_XKeysymToString(sym)); scancode = X11_KeyCodeToSDLScancode(data->display, i); data->key_layout[i] = scancode; if (scancode == SDL_SCANCODE_UNKNOWN) { printf("scancode not found\n"); } else { printf("scancode = %d (%s)\n", scancode, SDL_GetScancodeName(scancode)); } } } } X11_UpdateKeymap(_this); SDL_SetScancodeName(SDL_SCANCODE_APPLICATION, "Menu"); return 0; } void X11_UpdateKeymap(_THIS) { SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; int i; SDL_Scancode scancode; SDL_Keycode keymap[SDL_NUM_SCANCODES]; SDL_GetDefaultKeymap(keymap); for (i = 0; i < SDL_arraysize(data->key_layout); i++) { Uint32 key; /* Make sure this is a valid scancode */ scancode = data->key_layout[i]; if (scancode == SDL_SCANCODE_UNKNOWN) { continue; } /* See if there is a UCS keycode for this scancode */ key = X11_KeyCodeToUcs4(data->display, (KeyCode)i); if (key) { keymap[scancode] = key; } } SDL_SetKeymap(0, keymap, SDL_NUM_SCANCODES); } void X11_QuitKeyboard(_THIS) { } #endif /* SDL_VIDEO_DRIVER_X11 */ /* vi: set ts=4 sw=4 expandtab: */