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checkkeys: added support for multiple windows

This commit is contained in:
Sam Lantinga 2024-06-24 05:58:26 -07:00
parent 76631a0978
commit 505badb7af
1 changed files with 102 additions and 32 deletions
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134
test/checkkeys.c
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@ -23,10 +23,56 @@
#include <emscripten/emscripten.h> #include <emscripten/emscripten.h>
#endif #endif
#define TEXT_WINDOW_OFFSET_X 2.0f
#define TEXT_WINDOW_OFFSET_Y (2.0f + FONT_LINE_HEIGHT)
static SDLTest_CommonState *state; static SDLTest_CommonState *state;
static SDLTest_TextWindow *textwin; static SDLTest_TextWindow **textwindows;
static SDL_bool escape_pressed;
static int done; static int done;
static SDLTest_TextWindow *GetTextWindowForWindowID(SDL_WindowID id)
{
int i;
for (i = 0; i < state->num_windows; ++i) {
if (id == SDL_GetWindowID(state->windows[i])) {
return textwindows[i];
}
}
return NULL;
}
static void UpdateTextWindowInputRect(SDL_WindowID id)
{
int i;
for (i = 0; i < state->num_windows; ++i) {
if (id == SDL_GetWindowID(state->windows[i])) {
int w, h;
SDL_Rect rect;
int current = textwindows[i]->current;
const char *current_line = textwindows[i]->lines[current];
SDL_GetWindowSize(state->windows[i], &w, &h);
rect.x = (int)TEXT_WINDOW_OFFSET_X;
if (current_line) {
rect.x += SDL_utf8strlen(current_line) * FONT_CHARACTER_SIZE;
}
rect.y = (int)TEXT_WINDOW_OFFSET_Y + current * FONT_LINE_HEIGHT;
#if 1
rect.w = FONT_CHARACTER_SIZE;
#else
rect.w = (int)(w - (2 * TEXT_WINDOW_OFFSET_X));
#endif
rect.h = FONT_LINE_HEIGHT;
SDL_SetTextInputRect(state->windows[i], &rect);
return;
}
}
}
static void print_string(char **text, size_t *maxlen, const char *fmt, ...) static void print_string(char **text, size_t *maxlen, const char *fmt, ...)
{ {
int len; int len;
@ -222,8 +268,6 @@ static void loop(void)
{ {
SDL_Event event; SDL_Event event;
int i; int i;
/* Check for events */
/*SDL_WaitEvent(&event); emscripten does not like waiting*/
while (SDL_PollEvent(&event)) { while (SDL_PollEvent(&event)) {
switch (event.type) { switch (event.type) {
@ -233,14 +277,26 @@ static void loop(void)
if (event.type == SDL_EVENT_KEY_DOWN) { if (event.type == SDL_EVENT_KEY_DOWN) {
switch (event.key.key) { switch (event.key.key) {
case SDLK_BACKSPACE: case SDLK_BACKSPACE:
SDLTest_TextWindowAddText(textwin, "\b"); SDLTest_TextWindowAddText(GetTextWindowForWindowID(event.key.windowID), "\b");
UpdateTextWindowInputRect(event.key.windowID);
break; break;
case SDLK_RETURN: case SDLK_RETURN:
SDLTest_TextWindowAddText(textwin, "\n"); SDLTest_TextWindowAddText(GetTextWindowForWindowID(event.key.windowID), "\n");
UpdateTextWindowInputRect(event.key.windowID);
break; break;
default: default:
break; break;
} }
if (event.key.key == SDLK_ESCAPE) {
/* Pressing escape twice will stop the application */
if (escape_pressed) {
done = 1;
} else {
escape_pressed = SDL_TRUE;
}
} else {
escape_pressed = SDL_TRUE;
}
} }
CountKeysDown(); CountKeysDown();
break; break;
@ -249,16 +305,17 @@ static void loop(void)
break; break;
case SDL_EVENT_TEXT_INPUT: case SDL_EVENT_TEXT_INPUT:
PrintText("INPUT", event.text.text); PrintText("INPUT", event.text.text);
SDLTest_TextWindowAddText(textwin, "%s", event.text.text); SDLTest_TextWindowAddText(GetTextWindowForWindowID(event.text.windowID), "%s", event.text.text);
UpdateTextWindowInputRect(event.text.windowID);
break; break;
case SDL_EVENT_FINGER_DOWN: case SDL_EVENT_FINGER_DOWN:
{ {
SDL_Window *window = SDL_GetWindowFromID(event.tfinger.windowID); SDL_Window *window = SDL_GetWindowFromID(event.tfinger.windowID);
if (SDL_TextInputActive(window)) { if (SDL_TextInputActive(window)) {
SDL_Log("Stopping text input\n"); SDL_Log("Stopping text input for window %" SDL_PRIu32 "\n", event.tfinger.windowID);
SDL_StopTextInput(window); SDL_StopTextInput(window);
} else { } else {
SDL_Log("Starting text input\n"); SDL_Log("Starting text input for window %" SDL_PRIu32 "\n", event.tfinger.windowID);
SDL_StartTextInput(window); SDL_StartTextInput(window);
} }
break; break;
@ -266,17 +323,12 @@ static void loop(void)
case SDL_EVENT_MOUSE_BUTTON_DOWN: case SDL_EVENT_MOUSE_BUTTON_DOWN:
{ {
SDL_Window *window = SDL_GetWindowFromID(event.button.windowID); SDL_Window *window = SDL_GetWindowFromID(event.button.windowID);
/* Left button quits the app, other buttons toggles text input */ if (SDL_TextInputActive(window)) {
if (event.button.button == SDL_BUTTON_LEFT) { SDL_Log("Stopping text input for window %" SDL_PRIu32 "\n", event.button.windowID);
done = 1; SDL_StopTextInput(window);
} else { } else {
if (SDL_TextInputActive(window)) { SDL_Log("Starting text input for window %" SDL_PRIu32 "\n", event.button.windowID);
SDL_Log("Stopping text input\n"); SDL_StartTextInput(window);
SDL_StopTextInput(window);
} else {
SDL_Log("Starting text input\n");
SDL_StartTextInput(window);
}
} }
break; break;
} }
@ -293,10 +345,14 @@ static void loop(void)
} }
for (i = 0; i < state->num_windows; i++) { for (i = 0; i < state->num_windows; i++) {
char caption[1024];
SDL_SetRenderDrawColor(state->renderers[i], 0, 0, 0, 255); SDL_SetRenderDrawColor(state->renderers[i], 0, 0, 0, 255);
SDL_RenderClear(state->renderers[i]); SDL_RenderClear(state->renderers[i]);
SDL_SetRenderDrawColor(state->renderers[i], 255, 255, 255, 255); SDL_SetRenderDrawColor(state->renderers[i], 255, 255, 255, 255);
SDLTest_TextWindowDisplay(textwin, state->renderers[i]); SDL_snprintf(caption, sizeof(caption), "Text input %s (click mouse button to toggle)\n", SDL_TextInputActive(state->windows[i]) ? "enabled" : "disabled");
SDLTest_DrawString(state->renderers[i], TEXT_WINDOW_OFFSET_X, TEXT_WINDOW_OFFSET_X, caption);
SDLTest_TextWindowDisplay(textwindows[i], state->renderers[i]);
SDL_RenderPresent(state->renderers[i]); SDL_RenderPresent(state->renderers[i]);
} }
@ -312,8 +368,7 @@ static void loop(void)
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
int w, h; int i;
SDL_Rect input_rect;
SDL_SetHint(SDL_HINT_WINDOWS_RAW_KEYBOARD, "1"); SDL_SetHint(SDL_HINT_WINDOWS_RAW_KEYBOARD, "1");
@ -341,12 +396,26 @@ int main(int argc, char *argv[])
return 1; return 1;
} }
SDL_GetWindowSize(state->windows[0], &w, &h); textwindows = (SDLTest_TextWindow **)SDL_malloc(state->num_windows * sizeof(*textwindows));
textwin = SDLTest_TextWindowCreate(0.f, 0.f, (float)w, (float)h); if (!textwindows) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't allocate text windows: %s\n", SDL_GetError());
goto done;
}
for (i = 0; i < state->num_windows; ++i) {
int w, h;
SDL_FRect rect;
SDL_GetWindowSize(state->windows[i], &w, &h);
rect.x = TEXT_WINDOW_OFFSET_X;
rect.y = TEXT_WINDOW_OFFSET_Y;
rect.w = w - (2 * TEXT_WINDOW_OFFSET_X);
rect.h = h - TEXT_WINDOW_OFFSET_Y;
textwindows[i] = SDLTest_TextWindowCreate(rect.x, rect.y, rect.w, rect.h);
}
#ifdef SDL_PLATFORM_IOS #ifdef SDL_PLATFORM_IOS
{ {
int i;
/* Creating the context creates the view, which we need to show keyboard */ /* Creating the context creates the view, which we need to show keyboard */
for (i = 0; i < state->num_windows; i++) { for (i = 0; i < state->num_windows; i++) {
SDL_GL_CreateContext(state->windows[i]); SDL_GL_CreateContext(state->windows[i]);
@ -357,14 +426,11 @@ int main(int argc, char *argv[])
/* Enable showing IME candidates */ /* Enable showing IME candidates */
SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1"); SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");
/* Set an input rectangle in the center of the window */ for (i = 0; i < state->num_windows; ++i) {
input_rect.x = w / 4; UpdateTextWindowInputRect(SDL_GetWindowID(state->windows[i]));
input_rect.y = h / 4;
input_rect.w = w / 2;
input_rect.h = h / 2;
SDL_SetTextInputRect(state->windows[0], &input_rect);
SDL_StartTextInput(state->windows[0]); SDL_StartTextInput(state->windows[i]);
}
/* Print initial state */ /* Print initial state */
SDL_PumpEvents(); SDL_PumpEvents();
@ -382,7 +448,11 @@ int main(int argc, char *argv[])
} }
#endif #endif
SDLTest_TextWindowDestroy(textwin); done:
for (i = 0; i < state->num_windows; ++i) {
SDLTest_TextWindowDestroy(textwindows[i]);
}
SDL_free(textwindows);
SDLTest_CleanupTextDrawing(); SDLTest_CleanupTextDrawing();
SDLTest_CommonQuit(state); SDLTest_CommonQuit(state);
return 0; return 0;