[gimp] app: Keep canvas in place when image tabs show/hide

[Alexia Death <alexiade src gnome org>]

commit c2d26d7e0396546cfc1ca2485065ce903be6a882
Author: Alexia Death <alexiadeath gmail com>
Date:   Wed Jan 4 21:56:17 2012 +0200

    app: Keep canvas in place when image tabs show/hide

 app/display/gimpimagewindow.c |   14 ++++++++++----
 1 files changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/app/display/gimpimagewindow.c b/app/display/gimpimagewindow.c
index aa5689b..555f7d6 100644
--- a/app/display/gimpimagewindow.c
+++ b/app/display/gimpimagewindow.c
@@ -1007,14 +1007,17 @@ gimp_image_window_add_shell (GimpImageWindow  *window,
 
   private->shells = g_list_append (private->shells, shell);
 
+  if (g_list_length (private->shells) > 1)
+   {
+    gimp_image_window_keep_canvas_pos (window);
+    gtk_notebook_set_show_tabs (GTK_NOTEBOOK (private->notebook), TRUE);
+   }
+
   tab_label = gimp_image_window_create_tab_label (window, shell);
 
   gtk_notebook_append_page (GTK_NOTEBOOK (private->notebook),
                             GTK_WIDGET (shell), tab_label);
 
-  if (g_list_length (private->shells) > 1)
-    gtk_notebook_set_show_tabs (GTK_NOTEBOOK (private->notebook), TRUE);
-
   gtk_widget_show (GTK_WIDGET (shell));
 }
 
@@ -1050,7 +1053,10 @@ gimp_image_window_remove_shell (GimpImageWindow  *window,
                         GTK_WIDGET (shell));
 
   if (g_list_length (private->shells) == 1)
-    gtk_notebook_set_show_tabs (GTK_NOTEBOOK (private->notebook), FALSE);
+    {
+      gimp_image_window_keep_canvas_pos (window);
+      gtk_notebook_set_show_tabs (GTK_NOTEBOOK (private->notebook), FALSE);
+    }
 }
 
 gint