Pileus Git - ~andy/gtk/blob - gtk/a11y/gtkimagecellaccessible.c

   1 /* GAIL - The GNOME Accessibility Enabling Library
   2  * Copyright 2001 Sun Microsystems Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "config.h"
  19
  20 #include <gtk/gtk.h>
  21 #include "gtkimagecellaccessible.h"
  22
  23 static void atk_image_interface_init (AtkImageIface *iface);
  24
  25 G_DEFINE_TYPE_WITH_CODE (GtkImageCellAccessible, _gtk_image_cell_accessible, GTK_TYPE_RENDERER_CELL_ACCESSIBLE,
  26                          G_IMPLEMENT_INTERFACE (ATK_TYPE_IMAGE, atk_image_interface_init))
  27
  28 static void
  29 gtk_image_cell_accessible_finalize (GObject *object)
  30 {
  31   GtkImageCellAccessible *image_cell = GTK_IMAGE_CELL_ACCESSIBLE (object);
  32
  33   g_free (image_cell->image_description);
  34   G_OBJECT_CLASS (_gtk_image_cell_accessible_parent_class)->finalize (object);
  35 }
  36
  37 static void
  38 _gtk_image_cell_accessible_class_init (GtkImageCellAccessibleClass *klass)
  39 {
  40   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
  41
  42   gobject_class->finalize = gtk_image_cell_accessible_finalize;
  43 }
  44
  45 static void
  46 _gtk_image_cell_accessible_init (GtkImageCellAccessible *image_cell)
  47 {
  48   image_cell->image_description = NULL;
  49 }
  50
  51 static const gchar *
  52 gtk_image_cell_accessible_get_image_description (AtkImage *image)
  53 {
  54   GtkImageCellAccessible *image_cell = GTK_IMAGE_CELL_ACCESSIBLE (image);
  55
  56   return image_cell->image_description;
  57 }
  58
  59 static gboolean
  60 gtk_image_cell_accessible_set_image_description (AtkImage    *image,
  61                                                  const gchar *description)
  62 {
  63   GtkImageCellAccessible *image_cell = GTK_IMAGE_CELL_ACCESSIBLE (image);
  64
  65   g_free (image_cell->image_description);
  66   image_cell->image_description = g_strdup (description);
  67
  68   if (image_cell->image_description)
  69     return TRUE;
  70   else
  71     return FALSE;
  72 }
  73
  74 static void
  75 gtk_image_cell_accessible_get_image_position (AtkImage     *image,
  76                                               gint         *x,
  77                                               gint         *y,
  78                                               AtkCoordType  coord_type)
  79 {
  80   atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type);
  81 }
  82
  83 static void
  84 gtk_image_cell_accessible_get_image_size (AtkImage *image,
  85                                           gint     *width,
  86                                           gint     *height)
  87 {
  88   GtkImageCellAccessible *cell = GTK_IMAGE_CELL_ACCESSIBLE (image);
  89   GtkCellRenderer *cell_renderer;
  90   GdkPixbuf *pixbuf = NULL;
  91
  92   *width = 0;
  93   *height = 0;
  94
  95   cell_renderer = GTK_RENDERER_CELL_ACCESSIBLE (cell)->renderer;
  96   g_object_get (GTK_CELL_RENDERER_PIXBUF (cell_renderer),
  97                 "pixbuf", &pixbuf,
  98                 NULL);
  99
 100   if (pixbuf)
 101     {
 102       *width = gdk_pixbuf_get_width (pixbuf);
 103       *height = gdk_pixbuf_get_height (pixbuf);
 104       g_object_unref (pixbuf);
 105     }
 106 }
 107
 108 static void
 109 atk_image_interface_init (AtkImageIface  *iface)
 110 {
 111   iface->get_image_description = gtk_image_cell_accessible_get_image_description;
 112   iface->set_image_description = gtk_image_cell_accessible_set_image_description;
 113   iface->get_image_position = gtk_image_cell_accessible_get_image_position;
 114   iface->get_image_size = gtk_image_cell_accessible_get_image_size;
 115 }