Use GTK_RESIZE_PARENT resize_mode for GtkViewport

We used to use GTK_RESIZE_QUEUE, but that is problematic for e.g
a GtkScrolledWindow with NEVER scroll policies, as size changes
in ancestors will never get propagated to the scrolled window, causing
it to not have the correct size.

This is a slight performance hit, but in practice its not bound to be
problematic. In typical UIs there is only a single "large" GtkScrolledWindow
visible at a time, so a size requeust propagating out of such a window
will only hit the smaller amount of widgetry outside the scrolled window,
and additionally all such widgets will have their size request caches
still valid.

https://bugzilla.gnome.org/show_bug.cgi?id=690099

diff --git a/gtk/gtkviewport.c b/gtk/gtkviewport.c
index 5ac403bd073c1e0ac7d8b8492259923e6c0681cd..a80e811dcb44ad06e510cc33dfe31590f08e5461 100644 (file)
--- a/gtk/gtkviewport.c
+++ b/gtk/gtkviewport.c
@@ -241,7 +241,6 @@ gtk_viewport_init (GtkViewport *viewport)
   gtk_widget_set_has_window (GTK_WIDGET (viewport), TRUE);
 
   gtk_widget_set_redraw_on_allocate (GTK_WIDGET (viewport), FALSE);
-  gtk_container_set_resize_mode (GTK_CONTAINER (viewport), GTK_RESIZE_QUEUE);
 
   priv->shadow_type = GTK_SHADOW_IN;
   priv->view_window = NULL;