diff options
Diffstat (limited to 'gdk')
| -rw-r--r-- | gdk/gdkwindow.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c index db47512396..efdddbe646 100644 --- a/gdk/gdkwindow.c +++ b/gdk/gdkwindow.c @@ -2959,21 +2959,25 @@ gdk_window_begin_paint_region (GdkWindow *window, gdk_window_get_content (window), MAX (clip_box.width, 1), MAX (clip_box.height, 1)); + } - /* Normally alpha backgrounded client side windows are composited on the implicit paint - by being drawn in back to front order. However, if implicit paints are not used, for - instance if it was flushed due to a non-double-buffered paint in the middle of the - expose we need to copy in the existing data here. */ - if (!gdk_window_has_impl (window) && window->has_alpha_background) - { - cairo_t *cr = cairo_create (paint->surface); - gdk_cairo_set_source_window (cr, impl_window, - - (window->abs_x + clip_box.x), - - (window->abs_y + clip_box.y)); - cairo_paint (cr); - cairo_destroy (cr); - } + /* Normally alpha backgrounded client side windows are composited on the implicit paint + by being drawn in back to front order. However, if implicit paints are not used, for + instance if it was flushed due to a non-double-buffered paint in the middle of the + expose we need to copy in the existing data here. */ + if (!gdk_window_has_impl (window) && + window->has_alpha_background && + (!implicit_paint || + (implicit_paint && implicit_paint->flushed))) + { + cairo_t *cr = cairo_create (paint->surface); + gdk_cairo_set_source_window (cr, impl_window, + - (window->abs_x + clip_box.x), + - (window->abs_y + clip_box.y)); + cairo_paint (cr); + cairo_destroy (cr); } + cairo_surface_set_device_offset (paint->surface, -clip_box.x, -clip_box.y); for (list = window->paint_stack; list != NULL; list = list->next) |