atk/atkimage.h

   1 /* ATK -  Accessibility Toolkit
   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 Library 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  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifndef __ATK_IMAGE_H__
  21 #define __ATK_IMAGE_H__
  22
  23 #include <atk/atkobject.h>
  24 #include <atk/atkutil.h>
  25
  26 #ifdef __cplusplus
  27 extern "C" {
  28 #endif /* __cplusplus */
  29
  30 /*
  31  * The AtkImage interface should be supported by any object that has an
  32  * associated image. This interface provides the standard mechanism for
  33  * an assistive technology to get descriptive information about images.
  34  */
  35
  36 #define ATK_TYPE_IMAGE                   (atk_image_get_type ())
  37 #define ATK_IS_IMAGE(obj)                G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_IMAGE)
  38 #define ATK_IMAGE(obj)                   G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_IMAGE, AtkImage)
  39 #define ATK_IMAGE_GET_IFACE(obj)         (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_IMAGE, AtkImageIface))
  40
  41 #ifndef _TYPEDEF_ATK_IMAGE_
  42 #define _TYPEDEF_ATK_IMAGE_
  43 typedef struct _AtkImage AtkImage;
  44 #endif
  45 typedef struct _AtkImageIface AtkImageIface;
  46
  47 struct _AtkImageIface
  48 {
  49   GTypeInterface parent;
  50   void                  ( *get_image_position)    (AtkImage              *image,
  51                                                    gint                  *x,
  52                                                    gint                  *y,
  53                                                    AtkCoordType          coord_type);
  54   G_CONST_RETURN gchar* ( *get_image_description) (AtkImage              *image);
  55   void                  ( *get_image_size)        (AtkImage              *image,
  56                                                    gint                  *width,
  57                                                    gint                  *height);
  58   gboolean              ( *set_image_description) (AtkImage              *image,
  59                                                    const gchar           *description);
  60 };
  61
  62 GType  atk_image_get_type             (void);
  63
  64 G_CONST_RETURN gchar* atk_image_get_image_description (AtkImage   *image);
  65
  66 void     atk_image_get_image_size        (AtkImage           *image,
  67                                           gint               *width,
  68                                           gint               *height);
  69
  70 gboolean atk_image_set_image_description (AtkImage           *image,
  71                                           const gchar       *description);
  72 void     atk_image_get_image_position    (AtkImage           *image,
  73                                           gint               *x,
  74                                           gint               *y,
  75                                           AtkCoordType       coord_type);
  76
  77 #ifdef __cplusplus
  78 }
  79 #endif /* __cplusplus */
  80 #endif /* __ATK_IMAGE_H__ */