gtk2/gtk/a11y/gtkcontainercellaccessible.c

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/* GTK+ - accessibility implementations
* Copyright 2001 Sun Microsystems Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
2012-02-27 13:01:10 +00:00
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "gtkcontainercellaccessible.h"
#include "gtkcellaccessibleprivate.h"
struct _GtkContainerCellAccessiblePrivate
{
GList *children;
gint n_children;
};
G_DEFINE_TYPE (GtkContainerCellAccessible, gtk_container_cell_accessible, GTK_TYPE_CELL_ACCESSIBLE)
static void
gtk_container_cell_accessible_finalize (GObject *obj)
{
GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (obj);
g_list_free_full (container->priv->children, g_object_unref);
G_OBJECT_CLASS (gtk_container_cell_accessible_parent_class)->finalize (obj);
}
static gint
gtk_container_cell_accessible_get_n_children (AtkObject *obj)
{
GtkContainerCellAccessible *cell = GTK_CONTAINER_CELL_ACCESSIBLE (obj);
return cell->priv->n_children;
}
static AtkObject *
gtk_container_cell_accessible_ref_child (AtkObject *obj,
gint child)
{
GtkContainerCellAccessible *cell = GTK_CONTAINER_CELL_ACCESSIBLE (obj);
GList *l;
l = g_list_nth (cell->priv->children, child);
if (l == NULL)
return NULL;
return g_object_ref (ATK_OBJECT (l->data));
}
static void
gtk_container_cell_accessible_update_cache (GtkCellAccessible *cell)
{
GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (cell);
GList *l;
for (l = container->priv->children; l; l = l->next)
_gtk_cell_accessible_update_cache (l->data);
}
static void
gtk_container_cell_widget_set (GtkAccessible *accessible)
{
GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (accessible);
GList *l;
for (l = container->priv->children; l; l = l->next)
gtk_accessible_set_widget (l->data, gtk_accessible_get_widget (accessible));
GTK_ACCESSIBLE_CLASS (gtk_container_cell_accessible_parent_class)->widget_unset (accessible);
}
static void
gtk_container_cell_widget_unset (GtkAccessible *accessible)
{
GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (accessible);
GList *l;
for (l = container->priv->children; l; l = l->next)
gtk_accessible_set_widget (l->data, NULL);
GTK_ACCESSIBLE_CLASS (gtk_container_cell_accessible_parent_class)->widget_unset (accessible);
}
static void
gtk_container_cell_accessible_class_init (GtkContainerCellAccessibleClass *klass)
{
GtkCellAccessibleClass *cell_class = GTK_CELL_ACCESSIBLE_CLASS (klass);
GtkAccessibleClass *accessible_class = GTK_ACCESSIBLE_CLASS (klass);
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
g_object_class->finalize = gtk_container_cell_accessible_finalize;
class->get_n_children = gtk_container_cell_accessible_get_n_children;
class->ref_child = gtk_container_cell_accessible_ref_child;
accessible_class->widget_unset = gtk_container_cell_widget_set;
accessible_class->widget_unset = gtk_container_cell_widget_unset;
cell_class->update_cache = gtk_container_cell_accessible_update_cache;
g_type_class_add_private (g_object_class, sizeof (GtkContainerCellAccessiblePrivate));
}
static void
gtk_container_cell_accessible_init (GtkContainerCellAccessible *cell)
{
cell->priv = G_TYPE_INSTANCE_GET_PRIVATE (cell,
GTK_TYPE_CONTAINER_CELL_ACCESSIBLE,
GtkContainerCellAccessiblePrivate);
}
GtkContainerCellAccessible *
gtk_container_cell_accessible_new (void)
{
GObject *object;
object = g_object_new (GTK_TYPE_CONTAINER_CELL_ACCESSIBLE, NULL);
ATK_OBJECT (object)->role = ATK_ROLE_TABLE_CELL;
return GTK_CONTAINER_CELL_ACCESSIBLE (object);
}
void
gtk_container_cell_accessible_add_child (GtkContainerCellAccessible *container,
GtkCellAccessible *child)
{
g_return_if_fail (GTK_IS_CONTAINER_CELL_ACCESSIBLE (container));
g_return_if_fail (GTK_IS_CELL_ACCESSIBLE (child));
container->priv->n_children++;
container->priv->children = g_list_append (container->priv->children, child);
atk_object_set_parent (ATK_OBJECT (child), ATK_OBJECT (container));
}
void
gtk_container_cell_accessible_remove_child (GtkContainerCellAccessible *container,
GtkCellAccessible *child)
{
g_return_if_fail (GTK_IS_CONTAINER_CELL_ACCESSIBLE (container));
g_return_if_fail (GTK_IS_CELL_ACCESSIBLE (child));
g_return_if_fail (container->priv->n_children > 0);
container->priv->children = g_list_remove (container->priv->children, child);
container->priv->n_children--;
}
GList *
gtk_container_cell_accessible_get_children (GtkContainerCellAccessible *container)
{
g_return_val_if_fail (GTK_IS_CONTAINER_CELL_ACCESSIBLE (container), NULL);
return container->priv->children;
}