KeySym X11_KeyCodeToSym(_THIS, KeyCode keycode, unsigned char group) { SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; KeySym keysym; #if SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM if (data->xkb) { int num_groups = XkbKeyNumGroups(data->xkb, keycode); unsigned char info = XkbKeyGroupInfo(data->xkb, keycode); if (num_groups && group >= num_groups) { int action = XkbOutOfRangeGroupAction(info); if (action == XkbRedirectIntoRange) { if ((group = XkbOutOfRangeGroupNumber(info)) >= num_groups) { group = 0; } } else if (action == XkbClampIntoRange) { group = num_groups - 1; } else { group %= num_groups; } } keysym = X11_XkbKeycodeToKeysym(data->display, keycode, group, 0); } else { keysym = X11_XKeycodeToKeysym(data->display, keycode, 0); } #else keysym = X11_XKeycodeToKeysym(data->display, keycode, 0); #endif return keysym; }
/* 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 = X11_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 = X11_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_UP, XK_Up, 0 }, { SDL_SCANCODE_LEFT, XK_Left, 0 }, { SDL_SCANCODE_DELETE, XK_Delete, 0 }, { SDL_SCANCODE_KP_ENTER, XK_KP_Enter, 0 }, }; int best_distance; int best_index; int distance; X11_XAutoRepeatOn(data->display); /* Try to determine which scancodes are being used based on fingerprint */ best_distance = SDL_arraysize(fingerprint) + 1; best_index = -1; 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; } distance = 0; for (j = 0; j < SDL_arraysize(fingerprint); ++j) { if (fingerprint[j].value < 0 || fingerprint[j].value >= scancode_set[i].table_size) { distance += 1; } else if (scancode_set[i].table[fingerprint[j].value] != fingerprint[j].scancode) { distance += 1; } } if (distance < best_distance) { best_distance = distance; best_index = i; } } if (best_index >= 0 && best_distance <= 2) { #ifdef DEBUG_KEYBOARD printf("Using scancode set %d, min_keycode = %d, max_keycode = %d, table_size = %d\n", best_index, min_keycode, max_keycode, scancode_set[best_index].table_size); #endif SDL_memcpy(&data->key_layout[min_keycode], scancode_set[best_index].table, sizeof(SDL_Scancode) * scancode_set[best_index].table_size); } else { SDL_Keycode keymap[SDL_NUM_SCANCODES]; printf ("Keyboard layout unknown, please send the following to the SDL mailing list ([email protected]):\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 = X11_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"); #ifdef SDL_USE_IBUS SDL_IBus_Init(); #endif return 0; }