GtkCellView now watches the "row-changed" signal.

When the "row-changed" signal on the model is trapped, if the row which
changed is the displayed row then the context is flushed and sizes are
recalculated for every area in the same context.

1 files changed, 34 insertions, 2 deletions

diff --git a/gtk/gtkcellview.c b/gtk/gtkcellview.c
index 2fa830f328..e1269fce84 100644
--- a/gtk/gtkcellview.c
+++ b/gtk/gtkcellview.c
@@ -54,6 +54,7 @@ struct _GtkCellViewPrivate
   gboolean             background_set;
 
   gulong               size_changed_id;
+  gulong               row_changed_id;
 };
 
 
@@ -138,7 +139,10 @@ static void       gtk_cell_view_get_preferred_height_for_width (GtkWidget
 static void       context_size_changed_cb                      (GtkCellAreaContext   *context,
 								GParamSpec           *pspec,
 								GtkWidget            *view);
-
+static void       row_changed_cb                               (GtkTreeModel         *model,
+								GtkTreePath          *path,
+								GtkTreeIter          *iter,
+								GtkCellView          *view);
 
 static GtkBuildableIface *parent_buildable_iface;
 
@@ -669,6 +673,24 @@ context_size_changed_cb (GtkCellAreaContext  *context,
     gtk_widget_queue_resize (view);
 }
 
+static void
+row_changed_cb (GtkTreeModel         *model,
+		GtkTreePath          *path,
+		GtkTreeIter          *iter,
+		GtkCellView          *view)
+{
+  GtkTreePath *row_path;
+
+  if (view->priv->displayed_row)
+    {
+      row_path = 
+	gtk_tree_row_reference_get_path (view->priv->displayed_row);
+
+      /* Resize everything in our context if our row changed */
+      if (gtk_tree_path_compare (row_path, path) == 0)
+	gtk_cell_area_context_flush (view->priv->context);
+    }
+}
 
 /**
  * gtk_cell_view_new:
@@ -863,6 +885,10 @@ gtk_cell_view_set_model (GtkCellView  *cell_view,
 
   if (cell_view->priv->model)
     {
+      g_signal_handler_disconnect (cell_view->priv->model, 
+				   cell_view->priv->row_changed_id);
+      cell_view->priv->row_changed_id = 0;
+
       if (cell_view->priv->displayed_row)
         gtk_tree_row_reference_free (cell_view->priv->displayed_row);
       cell_view->priv->displayed_row = NULL;
@@ -874,7 +900,13 @@ gtk_cell_view_set_model (GtkCellView  *cell_view,
   cell_view->priv->model = model;
 
   if (cell_view->priv->model)
-    g_object_ref (cell_view->priv->model);
+    {
+      g_object_ref (cell_view->priv->model);
+
+      cell_view->priv->row_changed_id = 
+	g_signal_connect (cell_view->priv->model, "row-changed",
+			  G_CALLBACK (row_changed_cb), cell_view);
+    }
 }
 
 /**