gtk2/gtk/a11y/gtkimageaccessible.c

212 lines
5.9 KiB
C

/* 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
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "gtkimageaccessible.h"
struct _GtkImageAccessiblePrivate
{
gchar *image_description;
gchar *stock_name;
};
static void atk_image_interface_init (AtkImageIface *iface);
G_DEFINE_TYPE_WITH_CODE (GtkImageAccessible, gtk_image_accessible, GTK_TYPE_WIDGET_ACCESSIBLE,
G_ADD_PRIVATE (GtkImageAccessible)
G_IMPLEMENT_INTERFACE (ATK_TYPE_IMAGE, atk_image_interface_init))
static void
gtk_image_accessible_initialize (AtkObject *accessible,
gpointer data)
{
ATK_OBJECT_CLASS (gtk_image_accessible_parent_class)->initialize (accessible, data);
accessible->role = ATK_ROLE_ICON;
}
static void
gtk_image_accessible_finalize (GObject *object)
{
GtkImageAccessible *aimage = GTK_IMAGE_ACCESSIBLE (object);
g_free (aimage->priv->image_description);
g_free (aimage->priv->stock_name);
G_OBJECT_CLASS (gtk_image_accessible_parent_class)->finalize (object);
}
static const gchar *
gtk_image_accessible_get_name (AtkObject *accessible)
{
GtkWidget* widget;
GtkImage *image;
GtkImageAccessible *image_accessible;
GtkStockItem stock_item;
gchar *stock_id;
const gchar *name;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
if (widget == NULL)
return NULL;
name = ATK_OBJECT_CLASS (gtk_image_accessible_parent_class)->get_name (accessible);
if (name)
return name;
image = GTK_IMAGE (widget);
image_accessible = GTK_IMAGE_ACCESSIBLE (accessible);
g_free (image_accessible->priv->stock_name);
image_accessible->priv->stock_name = NULL;
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
if (gtk_image_get_storage_type (image) != GTK_IMAGE_STOCK)
return NULL;
gtk_image_get_stock (image, &stock_id, NULL);
if (stock_id == NULL)
return NULL;
if (!gtk_stock_lookup (stock_id, &stock_item))
return NULL;
G_GNUC_END_IGNORE_DEPRECATIONS;
image_accessible->priv->stock_name = _gtk_toolbar_elide_underscores (stock_item.label);
return image_accessible->priv->stock_name;
}
static void
gtk_image_accessible_class_init (GtkImageAccessibleClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
gobject_class->finalize = gtk_image_accessible_finalize;
class->initialize = gtk_image_accessible_initialize;
class->get_name = gtk_image_accessible_get_name;
}
static void
gtk_image_accessible_init (GtkImageAccessible *image)
{
image->priv = gtk_image_accessible_get_instance_private (image);
}
static const gchar *
gtk_image_accessible_get_image_description (AtkImage *image)
{
GtkImageAccessible *accessible = GTK_IMAGE_ACCESSIBLE (image);
return accessible->priv->image_description;
}
static void
gtk_image_accessible_get_image_position (AtkImage *image,
gint *x,
gint *y,
AtkCoordType coord_type)
{
atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type);
}
static void
gtk_image_accessible_get_image_size (AtkImage *image,
gint *width,
gint *height)
{
GtkWidget* widget;
GtkImage *gtk_image;
GtkImageType image_type;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (image));
if (widget == NULL)
{
*height = -1;
*width = -1;
return;
}
gtk_image = GTK_IMAGE (widget);
image_type = gtk_image_get_storage_type (gtk_image);
switch (image_type)
{
case GTK_IMAGE_PIXBUF:
{
GdkPixbuf *pixbuf;
pixbuf = gtk_image_get_pixbuf (gtk_image);
*height = gdk_pixbuf_get_height (pixbuf);
*width = gdk_pixbuf_get_width (pixbuf);
break;
}
case GTK_IMAGE_STOCK:
case GTK_IMAGE_ICON_SET:
case GTK_IMAGE_ICON_NAME:
case GTK_IMAGE_GICON:
{
GtkIconSize size;
g_object_get (gtk_image, "icon-size", &size, NULL);
gtk_icon_size_lookup (size, width, height);
break;
}
case GTK_IMAGE_ANIMATION:
{
GdkPixbufAnimation *animation;
animation = gtk_image_get_animation (gtk_image);
*height = gdk_pixbuf_animation_get_height (animation);
*width = gdk_pixbuf_animation_get_width (animation);
break;
}
default:
{
*height = -1;
*width = -1;
break;
}
}
}
static gboolean
gtk_image_accessible_set_image_description (AtkImage *image,
const gchar *description)
{
GtkImageAccessible* accessible = GTK_IMAGE_ACCESSIBLE (image);
g_free (accessible->priv->image_description);
accessible->priv->image_description = g_strdup (description);
return TRUE;
}
static void
atk_image_interface_init (AtkImageIface *iface)
{
iface->get_image_description = gtk_image_accessible_get_image_description;
iface->get_image_position = gtk_image_accessible_get_image_position;
iface->get_image_size = gtk_image_accessible_get_image_size;
iface->set_image_description = gtk_image_accessible_set_image_description;
}