[glide] Add hooks for slide color undo

[Robert Carr <racarr src gnome org>]

commit 50850e8fafb61d02e1d9397895b58de35f54fc34
Author: Robert Carr <racarr Valentine localdomain>
Date:   Thu Apr 29 05:00:23 2010 -0400

    Add hooks for slide color undo

 src/glide-window.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/glide-window.c b/src/glide-window.c
index 9bd371b..44dd816 100644
--- a/src/glide-window.c
+++ b/src/glide-window.c
@@ -284,7 +284,10 @@ glide_window_color_set_cb (GtkWidget *b,
     {
       GlideSlide *s = glide_document_get_nth_slide (w->priv->document,
 						    glide_stage_manager_get_current_slide (w->priv->manager));
+      
+      glide_undo_manager_start_slide_action (w->priv->undo_manager, s, "Set slide color.");
       glide_slide_set_color (s, &cc);
+      glide_undo_manager_end_slide_action (w->priv->undo_manager, s);
     }
     
   if (!GLIDE_IS_TEXT (selection))