[glide] Slides now keep track of their indices

[Robert Carr <racarr src gnome org>]

commit de598c81bef716fb4ba0a2f4d89268d2cc42ffeb
Author: Robert Carr <racarr Valentine localdomain>
Date:   Thu Apr 29 03:19:51 2010 -0400

    Slides now keep track of their indices

 src/glide-document.c      |   23 +++++++++++++++++++++++
 src/glide-stage-manager.c |    5 ++++-
 2 files changed, 27 insertions(+), 1 deletions(-)
---
diff --git a/src/glide-document.c b/src/glide-document.c
index 6d292cb..93c82b9 100644
--- a/src/glide-document.c
+++ b/src/glide-document.c
@@ -297,10 +297,27 @@ glide_document_get_nth_slide (GlideDocument *document,
   return GLIDE_SLIDE (g_list_nth_data (document->priv->slides, n));
 }
 
+static void
+glide_document_update_slide_indices (GlideDocument *document)
+{
+  GList *l;
+  guint i = 0;
+  
+  for (l = document->priv->slides; l; l = l->next)
+    {
+      GlideSlide *s = (GlideSlide *)l->data;
+      
+      glide_slide_set_index (s, i);
+      i++;
+    }
+}
+
 GlideSlide *
 glide_document_append_slide (GlideDocument *document)
 {
   GlideSlide *s = glide_slide_new (document);
+  
+  glide_slide_set_index (s, g_list_length (document->priv->slides));
   document->priv->slides = g_list_append (document->priv->slides, s);
   
   g_signal_emit (document, document_signals[SLIDE_ADDED], 0, s);
@@ -312,8 +329,12 @@ GlideSlide *
 glide_document_insert_slide (GlideDocument *document, gint after)
 {
   GlideSlide *s = glide_slide_new (document);
+
   document->priv->slides = g_list_insert (document->priv->slides, s, after+1);
   
+  glide_slide_set_index (s, after+1);
+  glide_document_update_slide_indices (document);
+  
   g_signal_emit (document, document_signals[SLIDE_ADDED], 0, s);
   
   return s;
@@ -324,6 +345,8 @@ glide_document_remove_slide (GlideDocument *document, gint slide)
 {
   GlideSlide *s = g_list_nth_data (document->priv->slides, slide);
   document->priv->slides = g_list_remove (document->priv->slides, s);
+  
+  glide_document_update_slide_indices (document);
 
   g_signal_emit (document, document_signals[SLIDE_REMOVED], 0, s);
 }
diff --git a/src/glide-stage-manager.c b/src/glide-stage-manager.c
index f277b5c..bdc7407 100644
--- a/src/glide-stage-manager.c
+++ b/src/glide-stage-manager.c
@@ -164,13 +164,16 @@ glide_stage_manager_add_manipulator (GlideStageManager *manager)
 void
 glide_stage_manager_set_slide (GlideStageManager *manager, guint slide)
 {
+  GlideSlide *s = glide_document_get_nth_slide (manager->priv->document, slide);
   if (manager->priv->current_slide >= 0 && !(manager->priv->current_slide >= glide_document_get_n_slides(manager->priv->document)))
     clutter_actor_hide (CLUTTER_ACTOR (glide_document_get_nth_slide (manager->priv->document, manager->priv->current_slide)));
   manager->priv->current_slide = slide;
-  clutter_actor_show_all (CLUTTER_ACTOR (glide_document_get_nth_slide (manager->priv->document, slide)));  
+  clutter_actor_show_all (CLUTTER_ACTOR (s));
   
   glide_stage_manager_add_manipulator (manager);
   
+  GLIDE_NOTE(STAGE_MANAGER, "Switching to slide index: %u", glide_slide_get_index (s));
+  
   g_object_notify (G_OBJECT (manager), "current-slide");
 }