diff options
Diffstat (limited to 'gdk/gdkwindow.c')
| -rw-r--r-- | gdk/gdkwindow.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c index bb466439cd..5523d07a62 100644 --- a/gdk/gdkwindow.c +++ b/gdk/gdkwindow.c @@ -225,7 +225,6 @@ static cairo_surface_t *gdk_window_create_cairo_surface (GdkDrawable *drawable, int height); static void gdk_window_drop_cairo_surface (GdkWindowObject *private); -static cairo_region_t* gdk_window_get_clip_region (GdkDrawable *drawable); static cairo_region_t* gdk_window_get_visible_region (GdkDrawable *drawable); static void gdk_window_free_paint_stack (GdkWindow *window); @@ -383,7 +382,6 @@ gdk_window_class_init (GdkWindowObjectClass *klass) drawable_class->ref_cairo_surface = gdk_window_ref_cairo_surface; drawable_class->create_cairo_surface = gdk_window_create_cairo_surface; - drawable_class->get_clip_region = gdk_window_get_clip_region; drawable_class->get_visible_region = gdk_window_get_visible_region; klass->create_surface = _gdk_offscreen_window_create_surface; @@ -3516,12 +3514,29 @@ gdk_window_flush_recursive (GdkWindowObject *window) gdk_window_flush_recursive_helper (window, window->impl); } -static cairo_region_t* -gdk_window_get_clip_region (GdkDrawable *drawable) +/** + * gdk_window_get_clip_region: + * @window: a #GdkWindow + * + * Computes the region of a window that potentially can be written + * to by drawing primitives. This region may not take into account + * other factors such as if the window is obscured by other windows, + * but no area outside of this region will be affected by drawing + * primitives. + * + * Returns: a #cairo_region_t. This must be freed with cairo_region_destroy() + * when you are done. + **/ +cairo_region_t* +gdk_window_get_clip_region (GdkWindow *window) { - GdkWindowObject *private = (GdkWindowObject *)drawable; + GdkWindowObject *private; cairo_region_t *result; + g_return_val_if_fail (GDK_WINDOW (window), NULL); + + private = (GdkWindowObject *) window; + result = cairo_region_copy (private->clip_region); if (private->paint_stack) |