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The valid mouse coordinates actually range from 0 to w-1 and h-1

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This commit is contained in:
Sam Lantinga 2011-02-20 23:51:59 -08:00
parent 84c86a8df1
commit c379a10fa4
1 changed files with 8 additions and 4 deletions
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12
src/events/SDL_mouse.c
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@ -153,18 +153,22 @@ SDL_SendMouseMotion(SDL_Window * window, int relative, int x, int y)
}
SDL_GetWindowSize(mouse->focus, &x_max, &y_max);
--x_max;
--y_max;
/* make sure that the pointers find themselves inside the windows */
/* only check if mouse->xmax is set ! */
if (x_max && mouse->x > x_max) {
if (mouse->x > x_max) {
mouse->x = x_max;
} else if (mouse->x < 0) {
}
if (mouse->x < 0) {
mouse->x = 0;
}
if (y_max && mouse->y > y_max) {
if (mouse->y > y_max) {
mouse->y = y_max;
} else if (mouse->y < 0) {
}
if (mouse->y < 0) {
mouse->y = 0;
}