[gtk+] GtkApplicationWindow: Fix size-request logic

[Matthias Clasen <matthiasc src gnome org>]

commit eced73c44176b657c9b621165be225422a9889e3
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jan 14 13:26:09 2012 -0500

    GtkApplicationWindow: Fix size-request logic
    
    When finding the width for a given height, we can pass the full
    height to both the menubar and the content. Instead, give the
    menubar its minimum height, and give the rest to the content.

 gtk/gtkapplicationwindow.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkapplicationwindow.c b/gtk/gtkapplicationwindow.c
index 777ab8d..3bf318f 100644
--- a/gtk/gtkapplicationwindow.c
+++ b/gtk/gtkapplicationwindow.c
@@ -603,15 +603,21 @@ gtk_application_window_real_get_preferred_width_for_height (GtkWidget *widget,
                                                             gint      *natural_width)
 {
   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
+  gint menubar_height;
+
+  if (window->priv->menubar != NULL)
+    gtk_widget_get_preferred_height (window->priv->menubar, &menubar_height, NULL);
+  else
+    menubar_height = 0;
 
   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
-    ->get_preferred_width_for_height (widget, height, minimum_width, natural_width);
+    ->get_preferred_width_for_height (widget, height - menubar_height, minimum_width, natural_width);
 
   if (window->priv->menubar != NULL)
     {
       gint menubar_min_width, menubar_nat_width;
 
-      gtk_widget_get_preferred_width_for_height (window->priv->menubar, height, &menubar_min_width, &menubar_nat_width);
+      gtk_widget_get_preferred_width_for_height (window->priv->menubar, menubar_height, &menubar_min_width, &menubar_nat_width);
       *minimum_width = MAX (*minimum_width, menubar_min_width);
       *natural_width = MAX (*natural_width, menubar_nat_width);
     }