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fix mouse controls in textscreen windows (#966)

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SDL_RenderSetLogicalSize() automatically centers it
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Roman Fomin 2023-04-02 12:47:25 +07:00 committed by GitHub
parent 798ba2b507
commit 28a88c41dc
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 7 deletions
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10
textscreen/txt_sdl.c
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@ -378,19 +378,15 @@ void TXT_UpdateScreen(void)
void TXT_GetMousePosition(int *x, int *y) void TXT_GetMousePosition(int *x, int *y)
{ {
int window_w, window_h; int window_w, window_h;
int origin_x, origin_y;
SDL_GetMouseState(x, y); SDL_GetMouseState(x, y);
// Translate mouse position from 'pixel' position into character position. // Translate mouse position from 'pixel' position into character position.
// We are working here in screen coordinates and not pixels, since this is // We are working here in screen coordinates and not pixels, since this is
// what SDL_GetWindowSize() returns; we must calculate and subtract the // what SDL_GetWindowSize() returns.
// origin position since we center the image within the window.
SDL_GetWindowSize(TXT_SDLWindow, &window_w, &window_h); SDL_GetWindowSize(TXT_SDLWindow, &window_w, &window_h);
origin_x = (window_w - screen_image_w) / 2; *x = ((*x) * TXT_SCREEN_W) / window_w;
origin_y = (window_h - screen_image_h) / 2; *y = ((*y) * TXT_SCREEN_H) / window_h;
*x = ((*x - origin_x) * TXT_SCREEN_W) / screen_image_w;
*y = ((*y - origin_y) * TXT_SCREEN_H) / screen_image_h;
if (*x < 0) if (*x < 0)
{ {