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Implemented SDL_SetWindowMouseRect() on Windows

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This commit is contained in:
Sam Lantinga
2021-11-08 16:29:19 -08:00
parent 684b3b312a
commit 7d21322df1
5 changed files with 42 additions and 11 deletions
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42
src/video/windows/SDL_windowswindow.c
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@@ -814,6 +814,19 @@ void WIN_UngrabKeyboard(SDL_Window *window)
}
}
void
WIN_SetWindowMouseRect(_THIS, SDL_Window * window, SDL_Rect * rect)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
if (rect) {
SDL_memcpy(&data->mouse_rect, rect, sizeof(*rect));
} else {
SDL_zero(data->mouse_rect);
}
WIN_UpdateClipCursor(window);
}
void
WIN_SetWindowMouseGrab(_THIS, SDL_Window * window, SDL_bool grabbed)
{
@@ -998,7 +1011,8 @@ WIN_UpdateClipCursor(SDL_Window *window)
return;
}
if ((mouse->relative_mode || (window->flags & SDL_WINDOW_MOUSE_GRABBED)) &&
if ((mouse->relative_mode || (window->flags & SDL_WINDOW_MOUSE_GRABBED) ||
(data->mouse_rect.w > 0 && data->mouse_rect.h > 0)) &&
(window->flags & SDL_WINDOW_INPUT_FOCUS)) {
if (mouse->relative_mode && !mouse->relative_mode_warp) {
if (GetWindowRect(data->hwnd, &rect)) {
@@ -1020,12 +1034,32 @@ WIN_UpdateClipCursor(SDL_Window *window)
}
}
} else {
if (GetClientRect(data->hwnd, &rect) && !IsRectEmpty(&rect)) {
if (GetClientRect(data->hwnd, &rect)) {
ClientToScreen(data->hwnd, (LPPOINT) & rect);
ClientToScreen(data->hwnd, (LPPOINT) & rect + 1);
if (data->mouse_rect.w > 0 && data->mouse_rect.h > 0) {
RECT mouse_rect, intersection;
mouse_rect.left = rect.left + data->mouse_rect.x;
mouse_rect.top = rect.top + data->mouse_rect.y;
mouse_rect.right = mouse_rect.left + data->mouse_rect.w - 1;
mouse_rect.bottom = mouse_rect.top + data->mouse_rect.h - 1;
if (IntersectRect(&intersection, &rect, &mouse_rect)) {
SDL_memcpy(&rect, &intersection, sizeof(rect));
} else if ((window->flags & SDL_WINDOW_MOUSE_GRABBED) != 0) {
/* Mouse rect was invalid, just do the normal grab */
} else {
SDL_zero(rect);
}
}
if (SDL_memcmp(&rect, &clipped_rect, sizeof(rect)) != 0) {
if (ClipCursor(&rect)) {
data->cursor_clipped_rect = rect;
if (!IsRectEmpty(&rect)) {
if (ClipCursor(&rect)) {
data->cursor_clipped_rect = rect;
}
} else {
ClipCursor(NULL);
SDL_zero(data->cursor_clipped_rect);
}
}
}