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Made window resize around center

This commit is contained in:
Hannah Crawford 2021-09-21 21:21:48 +01:00 committed by Andrew Alderwick
parent f38ba34310
commit 753c5836e6
1 changed files with 19 additions and 2 deletions
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21
src/uxnemu.c
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@ -85,6 +85,23 @@ audio_callback(void *u, Uint8 *stream, int len)
(void)u;
}
static void
set_window_size(SDL_Window *window, int w, int h)
{
int win_x, win_y;
int win_cent_x, win_cent_y;
int old_win_sz_x, old_win_sz_y;
SDL_GetWindowPosition(window, &win_x, &win_y);
SDL_GetWindowSize(window, &old_win_sz_x, &old_win_sz_y);
win_cent_x = win_x + old_win_sz_x / 2;
win_cent_y = win_y + old_win_sz_y / 2;
SDL_SetWindowPosition(window, win_cent_x - w / 2, win_cent_y - h / 2);
SDL_SetWindowSize(window, w, h);
}
static void
inspect(Ppu *p, Uint8 *stack, Uint8 wptr, Uint8 rptr, Uint8 *memory)
{
@ -154,7 +171,7 @@ static void
toggle_zoom(Uxn *u)
{
zoom = zoom == 3 ? 1 : zoom + 1;
SDL_SetWindowSize(gWindow, (ppu.width + PAD * 2) * zoom, (ppu.height + PAD * 2) * zoom);
set_window_size(gWindow, (ppu.width + PAD * 2) * zoom, (ppu.height + PAD * 2) * zoom);
redraw(u);
}
@ -205,7 +222,7 @@ set_size(Uint16 width, Uint16 height, int is_resize)
if(gTexture == NULL || SDL_SetTextureBlendMode(gTexture, SDL_BLENDMODE_NONE))
return error("sdl_texture", SDL_GetError());
SDL_UpdateTexture(gTexture, NULL, ppu_screen, sizeof(Uint32));
if(is_resize) SDL_SetWindowSize(gWindow, (ppu.width + PAD * 2) * zoom, (ppu.height + PAD * 2) * zoom);
if(is_resize) set_window_size(gWindow, (ppu.width + PAD * 2) * zoom, (ppu.height + PAD * 2) * zoom);
reqdraw = 1;
return 1;
}