gdk: Remove supports_native_bg on WindowImplIface

[~andy/gtk] / gdk / gdkwindow.c

diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 9fe481000a674109b38519f3ba6408f191f008d0..814c4117775f28a3c949ba3cc80d8e308fa9de26 100644 (file)
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -3812,28 +3812,6 @@ gdk_window_clear (GdkWindow *window)
                         width, height);
 }
 
-/* TRUE if the window clears to the same pixels as a native
-   window clear. This means you can use the native window
-   clearing operation, and additionally it means any clearing
-   done by the native window system for you will already be right */
-static gboolean
-clears_as_native (GdkWindowObject *private)
-{
-  GdkWindowObject *next;
-
-  next = private;
-  do
-    {
-      private = next;
-      if (gdk_window_has_impl (private))
-       return TRUE;
-      next = private->parent;
-    }
-  while (private->bg_pixmap == GDK_PARENT_RELATIVE_BG &&
-        next && next->window_type != GDK_WINDOW_ROOT);
-  return FALSE;
-}
-
 static void
 gdk_window_clear_region_internal (GdkWindow *window,
                                  cairo_region_t *region)
@@ -4842,9 +4820,7 @@ gdk_window_invalidate_maybe_recurse_full (GdkWindow       *window,
         for window backgrounds */
       if (private->event_mask & GDK_EXPOSURE_MASK ||
          clear_bg == CLEAR_BG_ALL ||
-         (clear_bg == CLEAR_BG_WINCLEARED &&
-          (!clears_as_native (private) ||
-           !GDK_WINDOW_IMPL_GET_IFACE (private->impl)->supports_native_bg)))
+         clear_bg == CLEAR_BG_WINCLEARED)
        impl_window_add_update_area (impl_window, visible_region);
     }