[gtk+/wip/otte/queue-resize: 25/31] sizegroup: Skip resizes on widgets that have resize queued

[Benjamin Otte <otte src gnome org>]

commit 2926bd7de6aa6f749d1dc9db8d4acd85c3aa0b2b
Author: Benjamin Otte <otte redhat com>
Date:   Mon Sep 28 05:48:57 2015 +0200

    sizegroup: Skip resizes on widgets that have resize queued
    
    Widgets that already have a resize queued don't need to walk the whole
    parent chain and queue another resize. It's enough to do it once per
    resize.
    
    This also means that sizegroups cannot use the shortcut of just
    invalidating the first widget in the group anymore. That widget might
    already have a resize queued while others don't.

 gtk/gtksizegroup.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtksizegroup.c b/gtk/gtksizegroup.c
index 3eddc1f..a6e0d1f 100644
--- a/gtk/gtksizegroup.c
+++ b/gtk/gtksizegroup.c
@@ -217,6 +217,9 @@ queue_resize_on_widget (GtkWidget *widget,
 
   do
     {
+      if (gtk_widget_get_resize_needed (parent))
+        return;
+
       gtk_widget_queue_resize_on_widget (parent);
 
       if (!check_siblings || _gtk_widget_get_sizegroups (parent) == NULL)
@@ -268,9 +271,12 @@ static void
 queue_resize_on_group (GtkSizeGroup *size_group)
 {
   GtkSizeGroupPrivate *priv = size_group->priv;
+  GSList *list;
 
-  if (priv->widgets)
-    queue_resize_on_widget (priv->widgets->data, TRUE);
+  for (list = priv->widgets; list; list = list->next)
+    {
+      gtk_widget_queue_resize (list->data);
+    }
 }
 
 static void