[glade] GladeInspector: Now show a warning icon and tooltip text if a widget has a warning

[Tristan Van Berkom <tvb src gnome org>]

commit f626fb00d82d90565bed05f6aba38ac63a2322c0
Author: Tristan Van Berkom <tristan van berkom gmail com>
Date:   Thu Apr 11 00:08:04 2013 +0900

    GladeInspector: Now show a warning icon and tooltip text if a widget has a warning
    
    This makes support warnings much easier to catch, instead of having to dig
    into the properties dialog (or wait until save time) you can see directly
    in the inspector if any of your widgets have any deprecation/versioning
    warnings.

 gladeui/glade-inspector.c |   41 ++++++++++++++++++++++++++++++++++++++---
 1 files changed, 38 insertions(+), 3 deletions(-)
---
diff --git a/gladeui/glade-inspector.c b/gladeui/glade-inspector.c
index 27e061b..740ecd2 100644
--- a/gladeui/glade-inspector.c
+++ b/gladeui/glade-inspector.c
@@ -829,6 +829,24 @@ button_press_cb (GtkWidget *widget,
 }
 
 static void
+glade_inspector_warning_cell_data_func (GtkTreeViewColumn *column,
+                                       GtkCellRenderer *renderer,
+                                       GtkTreeModel *model,
+                                       GtkTreeIter *iter,
+                                       gpointer data)
+{
+  gchar *warning = NULL;
+
+  gtk_tree_model_get (model, iter,
+                     GLADE_PROJECT_MODEL_COLUMN_WARNING, &warning,
+                     -1);
+
+  g_object_set (renderer, "visible", warning != NULL, NULL);
+
+  g_free (warning);
+}
+
+static void
 add_columns (GtkTreeView *view)
 {
   GtkTreeViewColumn *column;
@@ -842,12 +860,29 @@ add_columns (GtkTreeView *view)
   gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
   gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (box), 2);
 
+  gtk_tree_view_set_tooltip_column (view, GLADE_PROJECT_MODEL_COLUMN_WARNING);
 
-  /* First pixbuf sell needs some spacing after the expander */
+  /* Padding */
+  renderer = gtk_cell_renderer_text_new ();
+  g_object_set (G_OBJECT (renderer), "width", 4, NULL);
+  gtk_cell_area_box_pack_start (box, renderer, FALSE, FALSE, FALSE);
+
+  /* Warning cell */
   renderer = gtk_cell_renderer_pixbuf_new ();
-  gtk_cell_renderer_set_padding (renderer, 6, 0);
-  gtk_cell_renderer_set_alignment (renderer, 1.0, 0.5);
+  g_object_set (renderer,
+               "stock-id", "gtk-dialog-warning",
+               "xpad", 2,
+               NULL);
+  gtk_cell_area_box_pack_start (box, renderer, FALSE, FALSE, FALSE);
+  gtk_tree_view_column_set_cell_data_func (column, renderer,
+                                          glade_inspector_warning_cell_data_func,
+                                          NULL, NULL);
 
+  /* Class Icon */
+  renderer = gtk_cell_renderer_pixbuf_new ();
+  g_object_set (renderer,
+               "xpad", 2,
+               NULL);
   gtk_cell_area_box_pack_start (box, renderer, FALSE, FALSE, FALSE);
   gtk_tree_view_column_set_attributes (column,
                                        renderer,