2002-05-02 Marc Mulcahy <marc.mulcahy@sun.com>
[platform/core/uifw/at-spi2-atk.git] / libspi / image.c
1 /*
2  * AT-SPI - Assistive Technology Service Provider Interface
3  * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
4  *
5  * Copyright 2001 Sun Microsystems Inc.
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Library General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Library General Public License for more details.
16  *
17  * You should have received a copy of the GNU Library General Public
18  * License along with this library; if not, write to the
19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20  * Boston, MA 02111-1307, USA.
21  */
22
23 /* image.c : implements the Image interface */
24
25 #include <config.h>
26 #include <stdio.h>
27 #include <libspi/image.h>
28
29
30 SpiImage *
31 spi_image_interface_new (AtkObject *obj)
32 {
33   SpiImage *new_image = g_object_new (SPI_IMAGE_TYPE, NULL);
34
35   spi_base_construct (SPI_BASE (new_image), G_OBJECT(obj));
36
37   return new_image;
38 }
39
40 static AtkImage *
41 get_image_from_servant (PortableServer_Servant servant)
42 {
43   SpiBase *object = SPI_BASE (bonobo_object_from_servant (servant));
44
45   g_return_val_if_fail (object, NULL);
46   g_return_val_if_fail (ATK_IS_OBJECT(object->gobj), NULL);
47   return ATK_IMAGE (object->gobj);
48 }
49
50 static void 
51 impl_getImagePosition (PortableServer_Servant servant,
52                        CORBA_long * x, CORBA_long * y,
53                        const CORBA_short coordType,
54                        CORBA_Environment *ev)
55 {
56   AtkImage *image = get_image_from_servant (servant);
57   gint ix, iy;
58
59   g_return_if_fail (image != NULL);
60
61   atk_image_get_image_position (image,
62                                 &ix, &iy,
63                                 (AtkCoordType) coordType);
64   *x = ix;
65   *y = iy;
66 }
67
68 static void 
69 impl_getImageSize (PortableServer_Servant servant,
70                    CORBA_long * width, CORBA_long * height,
71                    CORBA_Environment *ev)
72 {
73   AtkImage *image = get_image_from_servant (servant);
74   gint iw, ih;
75   
76   g_return_if_fail (image != NULL);
77
78   atk_image_get_image_size (image,
79                             &iw, &ih);
80   *width = iw;
81   *height = ih;
82 }
83
84 static Accessibility_BoundingBox
85 impl_getImageExtents (PortableServer_Servant servant,
86                       const CORBA_short      coordType,
87                       CORBA_Environment     *ev)
88 {
89   AtkImage *image;
90   gint x, y, width, height;
91   Accessibility_BoundingBox bbox;
92
93   bbox.x = bbox.y = bbox.width = bbox.height = -1;
94
95   image = get_image_from_servant (servant);
96
97   if (image)
98     {
99       atk_image_get_image_size (image, &width, &height);
100       atk_image_get_image_position (image, &x, &y, coordType);
101
102       bbox.x = x;
103       bbox.y = y;
104       bbox.width = width;
105       bbox.height = height;
106     }
107
108   return bbox;
109 }
110
111 static CORBA_string 
112 impl__get_imageDescription (PortableServer_Servant servant,
113                             CORBA_Environment     *ev)
114 {
115   const char *rv;
116   AtkImage   *image = get_image_from_servant (servant);
117
118   g_return_val_if_fail (image != NULL, CORBA_string_dup (""));
119
120   rv = atk_image_get_image_description (image);
121
122   if (rv)
123     {
124       return CORBA_string_dup (rv);
125     }
126   else
127     {
128       return CORBA_string_dup ("");
129     }
130 }
131
132 static void
133 spi_image_class_init (SpiImageClass *klass)
134 {
135   POA_Accessibility_Image__epv *epv = &klass->epv;
136
137   /* Initialize epv table */
138   epv->getImagePosition      = impl_getImagePosition;
139   epv->getImageSize          = impl_getImageSize;
140   epv->getImageExtents       = impl_getImageExtents;
141   epv->_get_imageDescription = impl__get_imageDescription;
142 }
143
144 static void
145 spi_image_init (SpiImage *image)
146 {
147 }
148
149 BONOBO_TYPE_FUNC_FULL (SpiImage,
150                        Accessibility_Image,
151                        SPI_TYPE_BASE,
152                        spi_image);