source: trunk/src/gui/accessible/qaccessiblebridge.cpp@ 618

Last change on this file since 618 was 618, checked in by Dmitry A. Kuminov, 15 years ago

gui: Enabled accessibility support on OS/2. Closes #39.

File size: 4.9 KB
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41
42#include "qaccessiblebridge.h"
43
44#ifndef QT_NO_ACCESSIBILITY
45
46QT_BEGIN_NAMESPACE
47
48/*!
49 \class QAccessibleBridge
50 \brief The QAccessibleBridge class is the base class for
51 accessibility back-ends.
52
53 \ingroup accessibility
54
55 Qt supports Microsoft Active Accessibility (MSAA), Mac OS X
56 Accessibility, and the Unix/X11 AT-SPI standard. By subclassing
57 QAccessibleBridge, you can support other backends than the
58 predefined ones.
59
60 Currently, custom bridges are only supported on Unix and OS/2. We might
61 add support for them on other platforms as well if there is
62 enough demand.
63
64 \sa QAccessible, QAccessibleBridgePlugin
65*/
66
67/*!
68 \fn QAccessibleBridge::~QAccessibleBridge()
69
70 Destroys the accessibility bridge object.
71*/
72
73/*!
74 \fn void QAccessibleBridge::setRootObject(QAccessibleInterface *object)
75
76 This function is called by Qt at application startup to set the
77 root accessible object of the application to \a object. All other
78 accessible objects in the application can be reached by the
79 client using object navigation.
80*/
81
82/*!
83 \fn void QAccessibleBridge::notifyAccessibilityUpdate(int reason, QAccessibleInterface *interface, int child)
84
85 This function is called by Qt to notify the bridge about a change
86 in the accessibility information for object wrapped by the given
87 \a interface.
88
89 \a reason specifies the cause of the change. It can take values
90 of type QAccessible::Event.
91
92 \a child is the (1-based) index of the child element that has
93 changed. When \a child is 0, the object itself has changed.
94
95 \sa QAccessible::updateAccessibility()
96*/
97
98/*!
99 \class QAccessibleBridgePlugin
100 \brief The QAccessibleBridgePlugin class provides an abstract
101 base for accessibility bridge plugins.
102
103 \ingroup plugins
104 \ingroup accessibility
105
106 Writing an accessibility bridge plugin is achieved by subclassing
107 this base class, reimplementing the pure virtual functions keys()
108 and create(), and exporting the class with the
109 Q_EXPORT_PLUGIN2() macro.
110
111 \sa QAccessibleBridge, QAccessiblePlugin, {How to Create Qt Plugins}
112*/
113
114/*!
115 Constructs an accessibility bridge plugin with the given \a
116 parent. This is invoked automatically by the Q_EXPORT_PLUGIN2()
117 macro.
118*/
119QAccessibleBridgePlugin::QAccessibleBridgePlugin(QObject *parent)
120 : QObject(parent)
121{
122
123}
124
125/*!
126 Destroys the accessibility bridge plugin.
127
128 You never have to call this explicitly. Qt destroys a plugin
129 automatically when it is no longer used.
130*/
131QAccessibleBridgePlugin::~QAccessibleBridgePlugin()
132{
133
134}
135
136/*!
137 \fn QStringList QAccessibleBridgePlugin::keys() const
138
139 Returns the list of keys this plugins supports.
140
141 These keys must be the names of the bridges that this
142 plugin provides.
143
144 \sa create()
145*/
146
147/*!
148 \fn QAccessibleBridge *QAccessibleBridgePlugin::create(const QString &key)
149
150 Creates and returns the QAccessibleBridge object corresponding to
151 the given \a key. Keys are case sensitive.
152
153 \sa keys()
154*/
155
156QT_END_NAMESPACE
157
158#endif // QT_NO_ACCESSIBILITY
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