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Fix missed grab state changes in SDL demos 

Move grab handling out of `nk_sdl_handle_event` to `nk_sdl_handle_grab`,
which is now called outside of the event loop.
This change makes the logic similar to the GLFW demos and fixes issues
with missed grab state changes and mouse cursor disappearing.
This commit is contained in:
paccer 2024-02-10 03:03:16 +01:00
parent 24d6a47d73
commit e3b0f24626
8 changed files with 66 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
demo/sdl_opengl2/main.c
View File

@ -139,6 +139,7 @@ main(int argc, char *argv[])
if (evt.type == SDL_QUIT) goto cleanup;
nk_sdl_handle_event(&evt);
}
nk_sdl_handle_grab(); /* optional grabbing behavior */
nk_input_end(ctx);
/* GUI */

26
demo/sdl_opengl2/nuklear_sdl_gl2.h
View File

@ -233,22 +233,26 @@ nk_sdl_font_stash_end(void)
nk_style_set_font(&sdl.ctx, &sdl.atlas.default_font->handle);
}
NK_API void
nk_sdl_handle_grab(void)
{
struct nk_context *ctx = &sdl.ctx;
if (ctx->input.mouse.grab) {
SDL_SetRelativeMouseMode(SDL_TRUE);
} else if (ctx->input.mouse.ungrab) {
SDL_WarpMouseInWindow(sdl.win, (int)ctx->input.mouse.prev.x, (int)ctx->input.mouse.prev.y);
SDL_SetRelativeMouseMode(SDL_FALSE);
} else if (ctx->input.mouse.grabbed) {
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
}
}
NK_API int
nk_sdl_handle_event(SDL_Event *evt)
{
struct nk_context *ctx = &sdl.ctx;
/* optional grabbing behavior */
if (ctx->input.mouse.grab) {
SDL_SetRelativeMouseMode(SDL_TRUE);
ctx->input.mouse.grab = 0;
} else if (ctx->input.mouse.ungrab) {
int x = (int)ctx->input.mouse.prev.x, y = (int)ctx->input.mouse.prev.y;
SDL_SetRelativeMouseMode(SDL_FALSE);
SDL_WarpMouseInWindow(sdl.win, x, y);
ctx->input.mouse.ungrab = 0;
}
switch(evt->type)
{
case SDL_KEYUP: /* KEYUP & KEYDOWN share same routine */

4
demo/sdl_opengl3/main.c
View File

@ -149,7 +149,9 @@ int main(int argc, char *argv[])
while (SDL_PollEvent(&evt)) {
if (evt.type == SDL_QUIT) goto cleanup;
nk_sdl_handle_event(&evt);
} nk_input_end(ctx);
}
nk_sdl_handle_grab(); /* optional grabbing behavior */
nk_input_end(ctx);
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 230, 250),

26
demo/sdl_opengl3/nuklear_sdl_gl3.h
View File

@ -342,22 +342,26 @@ nk_sdl_font_stash_end(void)
}
NK_API void
nk_sdl_handle_grab(void)
{
struct nk_context *ctx = &sdl.ctx;
if (ctx->input.mouse.grab) {
SDL_SetRelativeMouseMode(SDL_TRUE);
} else if (ctx->input.mouse.ungrab) {
SDL_WarpMouseInWindow(sdl.win, (int)ctx->input.mouse.prev.x, (int)ctx->input.mouse.prev.y);
SDL_SetRelativeMouseMode(SDL_FALSE);
} else if (ctx->input.mouse.grabbed) {
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
}
}
NK_API int
nk_sdl_handle_event(SDL_Event *evt)
{
struct nk_context *ctx = &sdl.ctx;
/* optional grabbing behavior */
if (ctx->input.mouse.grab) {
SDL_SetRelativeMouseMode(SDL_TRUE);
ctx->input.mouse.grab = 0;
} else if (ctx->input.mouse.ungrab) {
int x = (int)ctx->input.mouse.prev.x, y = (int)ctx->input.mouse.prev.y;
SDL_SetRelativeMouseMode(SDL_FALSE);
SDL_WarpMouseInWindow(sdl.win, x, y);
ctx->input.mouse.ungrab = 0;
}
switch(evt->type)
{
case SDL_KEYUP: /* KEYUP & KEYDOWN share same routine */

1
demo/sdl_opengles2/main.c
View File

@ -92,6 +92,7 @@ MainLoop(void* loopArg){
if (evt.type == SDL_QUIT) running = nk_false;
nk_sdl_handle_event(&evt);
}
nk_sdl_handle_grab(); /* optional grabbing behavior */
nk_input_end(ctx);

26
demo/sdl_opengles2/nuklear_sdl_gles2.h
View File

@ -342,22 +342,26 @@ nk_sdl_font_stash_end(void)
}
NK_API void
nk_sdl_handle_grab(void)
{
struct nk_context *ctx = &sdl.ctx;
if (ctx->input.mouse.grab) {
SDL_SetRelativeMouseMode(SDL_TRUE);
} else if (ctx->input.mouse.ungrab) {
SDL_WarpMouseInWindow(sdl.win, (int)ctx->input.mouse.prev.x, (int)ctx->input.mouse.prev.y);
SDL_SetRelativeMouseMode(SDL_FALSE);
} else if (ctx->input.mouse.grabbed) {
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
}
}
NK_API int
nk_sdl_handle_event(SDL_Event *evt)
{
struct nk_context *ctx = &sdl.ctx;
/* optional grabbing behavior */
if (ctx->input.mouse.grab) {
SDL_SetRelativeMouseMode(SDL_TRUE);
ctx->input.mouse.grab = 0;
} else if (ctx->input.mouse.ungrab) {
int x = (int)ctx->input.mouse.prev.x, y = (int)ctx->input.mouse.prev.y;
SDL_SetRelativeMouseMode(SDL_FALSE);
SDL_WarpMouseInWindow(sdl.win, x, y);
ctx->input.mouse.ungrab = 0;
}
switch(evt->type)
{
case SDL_KEYUP: /* KEYUP & KEYDOWN share same routine */

1
demo/sdl_renderer/main.c
View File

@ -177,6 +177,7 @@ main(int argc, char *argv[])
if (evt.type == SDL_QUIT) goto cleanup;
nk_sdl_handle_event(&evt);
}
nk_sdl_handle_grab(); /* optional grabbing behavior */
nk_input_end(ctx);
/* GUI */

26
demo/sdl_renderer/nuklear_sdl_renderer.h
View File

@ -264,22 +264,26 @@ nk_sdl_font_stash_end(void)
nk_style_set_font(&sdl.ctx, &sdl.atlas.default_font->handle);
}
NK_API void
nk_sdl_handle_grab(void)
{
struct nk_context *ctx = &sdl.ctx;
if (ctx->input.mouse.grab) {
SDL_SetRelativeMouseMode(SDL_TRUE);
} else if (ctx->input.mouse.ungrab) {
SDL_WarpMouseInWindow(sdl.win, (int)ctx->input.mouse.prev.x, (int)ctx->input.mouse.prev.y);
SDL_SetRelativeMouseMode(SDL_FALSE);
} else if (ctx->input.mouse.grabbed) {
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
}
}
NK_API int
nk_sdl_handle_event(SDL_Event *evt)
{
struct nk_context *ctx = &sdl.ctx;
/* optional grabbing behavior */
if (ctx->input.mouse.grab) {
SDL_SetRelativeMouseMode(SDL_TRUE);
ctx->input.mouse.grab = 0;
} else if (ctx->input.mouse.ungrab) {
int x = (int)ctx->input.mouse.prev.x, y = (int)ctx->input.mouse.prev.y;
SDL_SetRelativeMouseMode(SDL_FALSE);
SDL_WarpMouseInWindow(sdl.win, x, y);
ctx->input.mouse.ungrab = 0;
}
switch(evt->type)
{
case SDL_KEYUP: /* KEYUP & KEYDOWN share same routine */