Extended gtk_cell_area_apply_attributes() to account for expander/expanded cells

The state of expanded cells must come from the view, since these states
can vary across views accessing the same model (also "finished up" the
applying of attributes code).

diff --git a/gtk/gtkcellarea.c b/gtk/gtkcellarea.c
index e77c2280ce21fbb7d87e3c8d01f215c09fb002b1..634ff4906c70829e194bc986aaa18b94762fbe34 100644 (file)
--- a/gtk/gtkcellarea.c
+++ b/gtk/gtkcellarea.c
@@ -117,6 +117,8 @@ typedef struct {
   GtkCellArea  *area;
   GtkTreeModel *model;
   GtkTreeIter  *iter;
+  gboolean      is_expander;
+  gboolean      is_expanded;
 } AttributeData;
 
 struct _GtkCellAreaPrivate
@@ -926,6 +928,22 @@ apply_cell_attributes (GtkCellRenderer *renderer,
   CellAttribute *attribute;
   GSList        *list;
   GValue         value = { 0, };
+  gboolean       is_expander;
+  gboolean       is_expanded;
+
+  g_object_freeze_notify (G_OBJECT (renderer));
+
+  /* Whether a row expands or is presently expanded can only be 
+   * provided by the view (as these states can vary across views
+   * accessing the same model).
+   */
+  g_object_get (renderer, "is-expander", &is_expander, NULL);
+  if (is_expander != data->is_expander)
+    g_object_set (renderer, "is-expander", data->is_expander, NULL);
+  
+  g_object_get (renderer, "is-expanded", &is_expanded, NULL);
+  if (is_expanded != data->is_expanded)
+    g_object_set (renderer, "is-expanded", data->is_expanded, NULL);
 
   /* Apply the attributes directly to the renderer */
   for (list = info->attributes; list; list = list->next)
@@ -942,12 +960,16 @@ apply_cell_attributes (GtkCellRenderer *renderer,
   if (info->func)
     info->func (GTK_CELL_LAYOUT (data->area), renderer,
                data->model, data->iter, info->data);
+
+  g_object_thaw_notify (G_OBJECT (renderer));
 }
 
 void
 gtk_cell_area_apply_attributes (GtkCellArea  *area,
                                GtkTreeModel *tree_model,
-                               GtkTreeIter  *iter)
+                               GtkTreeIter  *iter,
+                               gboolean      is_expander,
+                               gboolean      is_expanded)
 {
   GtkCellAreaPrivate *priv;
   AttributeData       data;
@@ -958,6 +980,13 @@ gtk_cell_area_apply_attributes (GtkCellArea  *area,
 
   priv = area->priv;
 
+  /* Feed in data needed to apply to every renderer */
+  data.area        = area;
+  data.model       = tree_model;
+  data.iter        = iter;
+  data.is_expander = is_expander;
+  data.is_expanded = is_expanded;
+
   /* Go over any cells that have attributes or custom GtkCellLayoutDataFuncs and
    * apply the data from the treemodel */
   g_hash_table_foreach (priv->cell_info, (GHFunc)apply_cell_attributes, &data);

diff --git a/gtk/gtkcellarea.h b/gtk/gtkcellarea.h
index c45977fb292a833ab13faa96126f1a7458a187a5..2e804714c5617e4c0dbcd91d252c52a76b3d097c 100644 (file)
--- a/gtk/gtkcellarea.h
+++ b/gtk/gtkcellarea.h
@@ -197,7 +197,9 @@ void               gtk_cell_area_get_preferred_width_for_height (GtkCellArea
 /* Attributes */
 void               gtk_cell_area_apply_attributes               (GtkCellArea        *area,
                                                                 GtkTreeModel       *tree_model,
-                                                                GtkTreeIter        *iter);
+                                                                GtkTreeIter        *iter,
+                                                                gboolean            is_expander,
+                                                                gboolean            is_expanded);
 void               gtk_cell_area_attribute_connect              (GtkCellArea        *area,
                                                                 GtkCellRenderer    *renderer,
                                                                 const gchar        *attribute,