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Don't map the top keyboard row to numbers when using the one-handed DVORAK layouts (thanks @tormol!)

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Fixes https://github.com/libsdl-org/SDL/pull/5127

(cherry picked from commit a2f4783e75)
This commit is contained in:
Sam Lantinga 2023-05-22 11:30:42 -07:00
parent 376a3cd100
commit 4dd9f61bfd
3 changed files with 30 additions and 11 deletions
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33
src/events/SDL_keyboard.c
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@ -702,20 +702,41 @@ void SDL_SetKeymap(int start, const SDL_Keycode *keys, int length, SDL_bool send
SDL_Keyboard *keyboard = &SDL_keyboard;
SDL_Scancode scancode;
SDL_Keycode normalized_keymap[SDL_NUM_SCANCODES];
SDL_bool is_azerty = SDL_FALSE;
if (start < 0 || start + length > SDL_NUM_SCANCODES) {
return;
}
if (start > 0) {
SDL_memcpy(&normalized_keymap[0], &keyboard->keymap[0], sizeof(*keys) * start);
}
SDL_memcpy(&normalized_keymap[start], keys, sizeof(*keys) * length);
/* The number key scancodes always map to the number key keycodes.
* On AZERTY layouts these technically are symbols, but users (and games)
* always think of them and view them in UI as number keys.
if (start + length < SDL_NUM_SCANCODES) {
int offset = start + length;
SDL_memcpy(&normalized_keymap[offset], &keyboard->keymap[offset], sizeof(*keys) * (SDL_NUM_SCANCODES - offset));
}
/* On AZERTY layouts the number keys are technically symbols, but users (and games)
* always think of them and view them in UI as number keys, so remap them here.
*/
normalized_keymap[SDL_SCANCODE_0] = SDLK_0;
for (scancode = SDL_SCANCODE_1; scancode <= SDL_SCANCODE_9; ++scancode) {
normalized_keymap[scancode] = SDLK_1 + (scancode - SDL_SCANCODE_1);
if (normalized_keymap[SDL_SCANCODE_0] < SDLK_0 || normalized_keymap[SDL_SCANCODE_0] > SDLK_9) {
is_azerty = SDL_TRUE;
for (scancode = SDL_SCANCODE_1; scancode <= SDL_SCANCODE_9; ++scancode) {
if (normalized_keymap[scancode] >= SDLK_0 && normalized_keymap[scancode] <= SDLK_9) {
/* There's a number on this row, it's not AZERTY */
is_azerty = SDL_FALSE;
break;
}
}
}
if (is_azerty) {
normalized_keymap[SDL_SCANCODE_0] = SDLK_0;
for (scancode = SDL_SCANCODE_1; scancode <= SDL_SCANCODE_9; ++scancode) {
normalized_keymap[scancode] = SDLK_1 + (scancode - SDL_SCANCODE_1);
}
}
/* If the mapping didn't really change, we're done here */