summaryrefslogtreecommitdiff
path: root/atk/atkcomponent.h
blob: 888ce118e95abedf23c004e9503903597968df18 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
/* ATK -  Accessibility Toolkit
 * Copyright 2001 Sun Microsystems Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#if defined(ATK_DISABLE_SINGLE_INCLUDES) && !defined (__ATK_H_INSIDE__) && !defined (ATK_COMPILATION)
#error "Only <atk/atk.h> can be included directly."
#endif

#ifndef __ATK_COMPONENT_H__
#define __ATK_COMPONENT_H__

#include <atk/atkobject.h>
#include <atk/atkutil.h>

G_BEGIN_DECLS

/*
 * The AtkComponent interface should be supported by any object that is 
 * rendered on the screen. The interface provides the standard mechanism 
 * for an assistive technology to determine and set the graphical
 * representation of an object.
 */

#define ATK_TYPE_COMPONENT                    (atk_component_get_type ())
#define ATK_IS_COMPONENT(obj)                 G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_COMPONENT)
#define ATK_COMPONENT(obj)                    G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_COMPONENT, AtkComponent)
#define ATK_COMPONENT_GET_IFACE(obj)          (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_COMPONENT, AtkComponentIface))

#ifndef _TYPEDEF_ATK_COMPONENT_
#define _TYPEDEF_ATK_COMPONENT_
typedef struct _AtkComponent AtkComponent;
#endif
typedef struct _AtkComponentIface  AtkComponentIface;

/**
 * AtkFocusHandler:
 * @object: the #AtkObject that receives/lose the focus
 * @focus_in: TRUE if the object receives the focus
 *
 * The type of callback function used for
 * atk_component_add_focus_handler() and
 * atk_component_remove_focus_handler()
 *
 * Deprecated: This type is deprecated since ATK version 2.9.4. as
 * atk_component_add_focus_handler() and
 * atk_component_remove_focus_handler() are deprecated. See those
 * methods for more information.
 */
typedef void (*AtkFocusHandler) (AtkObject* object, gboolean focus_in);

typedef struct _AtkRectangle       AtkRectangle;

/**
 * AtkRectangle:
 * @x: X coordinate of the left side of the rectangle.
 * @y: Y coordinate of the top side of the rectangle.
 * @width: width of the rectangle.
 * @height: height of the rectangle.
 *
 * A data structure for holding a rectangle. Those coordinates are
 * relative to the component top-level parent.
 */
struct _AtkRectangle
{
  gint x;
  gint y;
  gint width;
  gint height;
};

GType atk_rectangle_get_type (void);

#define ATK_TYPE_RECTANGLE (atk_rectangle_get_type ())

/**
 * AtkComponentIface:
 * @add_focus_handler: This virtual function is deprecated since 2.9.4
 * and it should not be overriden. See
 * atk_component_add_focus_handler() for more information.
 * @remove_focus_handler: This virtual function is deprecated since
 * 2.9.4 and it should not be overriden. See
 * atk_component_remove_focus_handler() for more information.
 */

struct _AtkComponentIface
{
  GTypeInterface parent;

  guint          (* add_focus_handler)  (AtkComponent          *component,
                                         AtkFocusHandler        handler);

  gboolean       (* contains)           (AtkComponent          *component,
                                         gint                   x,
                                         gint                   y,
                                         AtkCoordType           coord_type);

  AtkObject*    (* ref_accessible_at_point)  (AtkComponent     *component,
                                         gint                   x,
                                         gint                   y,
                                         AtkCoordType           coord_type);
  void          (* get_extents)         (AtkComponent          *component,
                                         gint                  *x,
                                         gint                  *y,
                                         gint                  *width,
                                         gint                  *height,
                                         AtkCoordType          coord_type);
  void                     (* get_position)     (AtkComponent   *component,
                                                 gint           *x,
                                                 gint           *y,
                                                 AtkCoordType   coord_type);
  void                     (* get_size)                 (AtkComponent   *component,
                                                         gint           *width,
                                                         gint           *height);
  gboolean                 (* grab_focus)               (AtkComponent   *component);
  void                     (* remove_focus_handler)      (AtkComponent  *component,
                                                          guint         handler_id);
  gboolean                 (* set_extents)      (AtkComponent   *component,
                                                 gint           x,
                                                 gint           y,
                                                 gint           width,
                                                 gint           height,
                                                 AtkCoordType   coord_type);
  gboolean                 (* set_position)     (AtkComponent   *component,
                                                 gint           x,
                                                 gint           y,
                                                 AtkCoordType   coord_type);
  gboolean                 (* set_size)         (AtkComponent   *component,
                                                 gint           width,
                                                 gint           height);
  	
  AtkLayer                 (* get_layer)        (AtkComponent   *component);
  gint                     (* get_mdi_zorder)   (AtkComponent   *component);

  /*
   * signal handlers
   */
  void                     (* bounds_changed)   (AtkComponent   *component,
                                                 AtkRectangle   *bounds);
  gdouble                  (* get_alpha)        (AtkComponent   *component);
};

GType atk_component_get_type (void);

/* convenience functions */
G_DEPRECATED
guint                atk_component_add_focus_handler      (AtkComponent    *component,
                                                           AtkFocusHandler handler);
gboolean              atk_component_contains               (AtkComponent    *component,
                                                            gint            x,
                                                            gint            y,
                                                            AtkCoordType    coord_type);
AtkObject*            atk_component_ref_accessible_at_point(AtkComponent    *component,
                                                            gint            x,
                                                            gint            y,
                                                            AtkCoordType    coord_type);
void                  atk_component_get_extents            (AtkComponent    *component,
                                                            gint            *x,
                                                            gint            *y,
                                                            gint            *width,
                                                            gint            *height,
                                                            AtkCoordType    coord_type);
void                  atk_component_get_position           (AtkComponent    *component,
                                                            gint            *x,
                                                            gint            *y,
                                                            AtkCoordType    coord_type);
void                  atk_component_get_size               (AtkComponent    *component,
                                                            gint            *width,
                                                            gint            *height);
AtkLayer              atk_component_get_layer              (AtkComponent    *component);
gint                  atk_component_get_mdi_zorder         (AtkComponent    *component);
gboolean              atk_component_grab_focus             (AtkComponent    *component);
G_DEPRECATED
void                  atk_component_remove_focus_handler   (AtkComponent    *component,
                                                            guint           handler_id);
gboolean              atk_component_set_extents            (AtkComponent    *component,
                                                            gint            x,
                                                            gint            y,
                                                            gint            width,
                                                            gint            height,
                                                            AtkCoordType    coord_type);
gboolean              atk_component_set_position           (AtkComponent    *component,
                                                            gint            x,
                                                            gint            y,
                                                            AtkCoordType    coord_type);
gboolean              atk_component_set_size               (AtkComponent    *component,
                                                            gint            width,
                                                            gint            height);
gdouble               atk_component_get_alpha              (AtkComponent    *component);

G_END_DECLS

#endif /* __ATK_COMPONENT_H__ */