GdkEvent *event,
const GdkRectangle *cell_area,
GtkCellRendererState flags);
+static void gtk_cell_area_real_apply_attributes (GtkCellArea *area,
+ GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ gboolean is_expander,
+ gboolean is_expanded);
static void gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaContext *context,
GtkWidget *widget,
};
enum {
+ SIGNAL_APPLY_ATTRIBUTES,
SIGNAL_ADD_EDITABLE,
SIGNAL_REMOVE_EDITABLE,
SIGNAL_FOCUS_CHANGED,
object_class->set_property = gtk_cell_area_set_property;
/* general */
- class->add = NULL;
- class->remove = NULL;
- class->forall = NULL;
- class->event = gtk_cell_area_real_event;
- class->render = NULL;
+ class->add = NULL;
+ class->remove = NULL;
+ class->forall = NULL;
+ class->event = gtk_cell_area_real_event;
+ class->render = NULL;
+ class->apply_attributes = gtk_cell_area_real_apply_attributes;
/* geometry */
class->create_context = NULL;
/* Signals */
+ /**
+ * GtkCellArea::apply-attributes:
+ * @area: the #GtkCellArea to apply the attributes to
+ * @model: the #GtkTreeModel to apply the attributes from
+ * @iter: the #GtkTreeIter indicating which row to apply the attributes of
+ * @is_expander: whether the view shows children for this row
+ * @is_expanded: whether the view is currently showing the children of this row
+ *
+ * This signal is emitted whenever applying attributes to @area from @model
+ */
+ cell_area_signals[SIGNAL_APPLY_ATTRIBUTES] =
+ g_signal_new (I_("apply-attributes"),
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GtkCellAreaClass, apply_attributes),
+ NULL, NULL,
+ _gtk_marshal_VOID__OBJECT_BOXED_BOOLEAN_BOOLEAN,
+ G_TYPE_NONE, 4,
+ GTK_TYPE_TREE_MODEL,
+ GTK_TYPE_TREE_ITER,
+ G_TYPE_BOOLEAN,
+ G_TYPE_BOOLEAN);
+
/**
* GtkCellArea::add-editable:
* @area: the #GtkCellArea where editing started
return FALSE;
}
+static void
+apply_cell_attributes (GtkCellRenderer *renderer,
+ CellInfo *info,
+ AttributeData *data)
+{
+ 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)
+ {
+ attribute = list->data;
+
+ gtk_tree_model_get_value (data->model, data->iter, attribute->column, &value);
+ g_object_set_property (G_OBJECT (renderer), attribute->attribute, &value);
+ g_value_unset (&value);
+ }
+
+ /* Call any GtkCellLayoutDataFunc that may have been set by the user
+ */
+ if (info->func)
+ info->func (GTK_CELL_LAYOUT (data->area), renderer,
+ data->model, data->iter, info->data);
+
+ g_object_thaw_notify (G_OBJECT (renderer));
+}
+
+static void
+gtk_cell_area_real_apply_attributes (GtkCellArea *area,
+ GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ gboolean is_expander,
+ gboolean is_expanded)
+{
+
+ GtkCellAreaPrivate *priv;
+ AttributeData data;
+ GtkTreePath *path;
+
+ 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);
+
+ /* Update the currently applied path */
+ g_free (priv->current_path);
+ path = gtk_tree_model_get_path (tree_model, iter);
+ priv->current_path = gtk_tree_path_to_string (path);
+ gtk_tree_path_free (path);
+}
+
static void
gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaContext *context,
}
}
-static void
-apply_cell_attributes (GtkCellRenderer *renderer,
- CellInfo *info,
- AttributeData *data)
-{
- 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)
- {
- attribute = list->data;
-
- gtk_tree_model_get_value (data->model, data->iter, attribute->column, &value);
- g_object_set_property (G_OBJECT (renderer), attribute->attribute, &value);
- g_value_unset (&value);
- }
-
- /* Call any GtkCellLayoutDataFunc that may have been set by the user
- */
- if (info->func)
- info->func (GTK_CELL_LAYOUT (data->area), renderer,
- data->model, data->iter, info->data);
-
- g_object_thaw_notify (G_OBJECT (renderer));
-}
-
/**
* gtk_cell_area_apply_attributes
* @area: a #GtkCellArea
gboolean is_expander,
gboolean is_expanded)
{
- GtkCellAreaPrivate *priv;
- AttributeData data;
- GtkTreePath *path;
-
g_return_if_fail (GTK_IS_CELL_AREA (area));
g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
g_return_if_fail (iter != NULL);
- 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);
-
- /* Update the currently applied path */
- g_free (priv->current_path);
- path = gtk_tree_model_get_path (tree_model, iter);
- priv->current_path = gtk_tree_path_to_string (path);
- gtk_tree_path_free (path);
+ g_signal_emit (area, cell_area_signals[SIGNAL_APPLY_ATTRIBUTES], 0,
+ tree_model, iter, is_expander, is_expanded);
}
/**
projects / ~andy / gtk / commitdiff