[glade] * gladeui/glade-project.[ch]: added accessor for toplevel list

[Juan Pablo Ugarte <jpu src gnome org>]

commit c2c091a665841f64b9b288c8b947e058040f0127
Author: Juan Pablo Ugarte <juanpablougarte gmail com>
Date:   Wed Feb 2 20:44:07 2011 -0300

      * gladeui/glade-project.[ch]: added accessor for toplevel list
    
      * gladeui/glade-design-view.c: pack toplevel widgets in GladeProject toplevels list order.
    
      * gladeui/glade-property.c: added special case for parentless widget properties
        on glade_property_set_value_impl() to show and hide new and old values.
    
      * gladeui/glade-editor-property.c: removed glade_widget_hide() call on
        glade_eprop_object_show_dialog() since now its handled on GladeProperty

 ChangeLog                       |   12 +++++++++++-
 gladeui/glade-design-view.c     |    5 +++++
 gladeui/glade-editor-property.c |    2 --
 gladeui/glade-project.c         |   14 ++++++++++++++
 gladeui/glade-project.h         |    2 ++
 gladeui/glade-property.c        |   15 +++++++++++++++
 6 files changed, 47 insertions(+), 3 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index c45e87f..082f463 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,7 +5,17 @@
     on widget where gtk_widget_get_preferred_height() value is different than
     the one returned by gtk_widget_get_preferred_size()
 
-  * gladeui/glade-design-view.c: set layout halign property to GTK_ALIGN_START
+  * gladeui/glade-design-view.c:
+    o set layout halign property to GTK_ALIGN_START
+    o pack toplevel widgets in GladeProject toplevels list order.
+  
+  * gladeui/glade-project.[ch]: added accessor for toplevel list
+
+  * gladeui/glade-property.c: added special case for parentless widget properties
+    on glade_property_set_value_impl() to show and hide new and old values.
+
+  * gladeui/glade-editor-property.c: removed glade_widget_hide() call on
+    glade_eprop_object_show_dialog() since now its handled on GladeProperty
 
 2011-02-01  Juan Pablo Ugarte <juanpablougarte gmail com>
 
diff --git a/gladeui/glade-design-view.c b/gladeui/glade-design-view.c
index 1dc433a..491bee4 100644
--- a/gladeui/glade-design-view.c
+++ b/gladeui/glade-design-view.c
@@ -170,6 +170,7 @@ static void
 glade_design_view_add_toplevel (GladeDesignView *view, GladeWidget *widget)
 {
   GtkWidget *layout;
+  GList *toplevels;
   GObject *object;
 
   if (glade_widget_get_parent (widget) ||
@@ -183,6 +184,10 @@ glade_design_view_add_toplevel (GladeDesignView *view, GladeWidget *widget)
   gtk_widget_set_halign (layout, GTK_ALIGN_START);
   gtk_box_pack_start (GTK_BOX (view->priv->layout_box), layout, FALSE, FALSE, 0);
 
+  if ((toplevels = glade_project_toplevels (view->priv->project)))
+    gtk_box_reorder_child (GTK_BOX (view->priv->layout_box), layout, 
+                           g_list_index (toplevels, GTK_WIDGET (object)));
+  
   gtk_container_add (GTK_CONTAINER (layout), GTK_WIDGET (object));
   gtk_widget_show (GTK_WIDGET (object));
   gtk_widget_show (layout);
diff --git a/gladeui/glade-editor-property.c b/gladeui/glade-editor-property.c
index 7655898..6126a01 100644
--- a/gladeui/glade-editor-property.c
+++ b/gladeui/glade-editor-property.c
@@ -3002,8 +3002,6 @@ glade_eprop_object_show_dialog (GtkWidget * dialog_button,
 
                   if (new_object && old_object != new_object)
                     {
-		      glade_widget_hide (new_widget);
-
                       if ((old_ref =
                            glade_widget_get_parentless_widget_ref (new_widget)))
                         {
diff --git a/gladeui/glade-project.c b/gladeui/glade-project.c
index d65d095..33a3e42 100644
--- a/gladeui/glade-project.c
+++ b/gladeui/glade-project.c
@@ -4029,6 +4029,20 @@ glade_project_display_dependencies (GladeProject * project)
   return g_string_free (string, FALSE);
 }
 
+/**
+ * glade_project_toplevels:
+ * @project: a #GladeProject
+ *
+ * Returns: a #GList containing the #GtkWidget toplevel items in @project
+ */
+GList *
+glade_project_toplevels (GladeProject * project)
+{
+  g_return_val_if_fail (GLADE_IS_PROJECT (project), NULL);
+
+  return project->priv->tree;
+}
+
 /* GtkTreeModel implementation */
 
 static GObject *
diff --git a/gladeui/glade-project.h b/gladeui/glade-project.h
index 5305147..5edb1c9 100644
--- a/gladeui/glade-project.h
+++ b/gladeui/glade-project.h
@@ -209,6 +209,8 @@ void                glade_project_get_target_version   (GladeProject       *proj
 GList              *glade_project_required_libs        (GladeProject       *project);
 gchar              *glade_project_display_dependencies (GladeProject       *project);
 
+GList              *glade_project_toplevels            (GladeProject       *project);
+
 /* Verifications */
 gchar              *glade_project_verify_widget_adaptor(GladeProject       *project,
                                                         GladeWidgetAdaptor *adaptor,
diff --git a/gladeui/glade-property.c b/gladeui/glade-property.c
index a0b969d..b4585ad 100644
--- a/gladeui/glade-property.c
+++ b/gladeui/glade-property.c
@@ -367,6 +367,21 @@ glade_property_set_value_impl (GladeProperty * property, const GValue * value)
       glade_project_verify_property (property);
     }
 
+  /* Special case parentless widget properties */
+  if (glade_property_class_parentless_widget (property->priv->klass))
+    {
+      GladeWidget *gobj;
+      GObject *obj;
+      
+      if ((obj = g_value_get_object (&old_value)) &&
+          (gobj = glade_widget_get_from_gobject (obj)))
+        glade_widget_show (gobj);
+
+      if ((obj = g_value_get_object (value)) &&
+          (gobj = glade_widget_get_from_gobject (obj)))
+        glade_widget_hide (gobj);  
+    }
+
   g_value_unset (&old_value);
   return TRUE;
 }