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tqtinterface/qtinterface/qt4/Qt/qaccessible.h

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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QACCESSIBLE_H
#define QACCESSIBLE_H
#include <QtCore/qglobal.h>
#include <QtCore/qobject.h>
#include <QtCore/qrect.h>
#include <QtCore/qset.h>
#include <QtCore/qvector.h>
#include <QtCore/qvariant.h>
#include <QtGui/qcolor.h>
#include <QtGui/qevent.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
#ifndef QT_NO_ACCESSIBILITY
class QAccessibleInterface;
class Q_GUI_EXPORT QAccessible
{
public:
enum Event {
SoundPlayed = 0x0001,
Alert = 0x0002,
ForegroundChanged = 0x0003,
MenuStart = 0x0004,
MenuEnd = 0x0005,
PopupMenuStart = 0x0006,
PopupMenuEnd = 0x0007,
ContextHelpStart = 0x000C,
ContextHelpEnd = 0x000D,
DragDropStart = 0x000E,
DragDropEnd = 0x000F,
DialogStart = 0x0010,
DialogEnd = 0x0011,
ScrollingStart = 0x0012,
ScrollingEnd = 0x0013,
MenuCommand = 0x0018,
ObjectCreated = 0x8000,
ObjectDestroyed = 0x8001,
ObjectShow = 0x8002,
ObjectHide = 0x8003,
ObjectReorder = 0x8004,
Focus = 0x8005,
Selection = 0x8006,
SelectionAdd = 0x8007,
SelectionRemove = 0x8008,
SelectionWithin = 0x8009,
StateChanged = 0x800A,
LocationChanged = 0x800B,
NameChanged = 0x800C,
DescriptionChanged = 0x800D,
ValueChanged = 0x800E,
ParentChanged = 0x800F,
HelpChanged = 0x80A0,
DefaultActionChanged = 0x80B0,
AcceleratorChanged = 0x80C0
};
enum StateFlag {
Normal = 0x00000000,
Unavailable = 0x00000001,
Selected = 0x00000002,
Focused = 0x00000004,
Pressed = 0x00000008,
Checked = 0x00000010,
Mixed = 0x00000020,
ReadOnly = 0x00000040,
HotTracked = 0x00000080,
DefaultButton = 0x00000100,
Expanded = 0x00000200,
Collapsed = 0x00000400,
Busy = 0x00000800,
// Floating = 0x00001000,
Marqueed = 0x00002000,
Animated = 0x00004000,
Invisible = 0x00008000,
Offscreen = 0x00010000,
Sizeable = 0x00020000,
Movable = 0x00040000,
#ifdef QT3_SUPPORT
Moveable = Movable,
#endif
SelfVoicing = 0x00080000,
Focusable = 0x00100000,
Selectable = 0x00200000,
Linked = 0x00400000,
Traversed = 0x00800000,
MultiSelectable = 0x01000000,
ExtSelectable = 0x02000000,
//AlertLow = 0x04000000,
//AlertMedium = 0x08000000,
//AlertHigh = 0x10000000, /* reused for HasInvokeExtension */
Protected = 0x20000000,
HasPopup = 0x40000000,
Modal = 0x80000000,
HasInvokeExtension = 0x10000000 // internal
};
Q_DECLARE_FLAGS(State, StateFlag)
enum Role {
NoRole = 0x00000000,
TitleBar = 0x00000001,
MenuBar = 0x00000002,
ScrollBar = 0x00000003,
Grip = 0x00000004,
Sound = 0x00000005,
Cursor = 0x00000006,
Caret = 0x00000007,
AlertMessage = 0x00000008,
Window = 0x00000009,
Client = 0x0000000A,
PopupMenu = 0x0000000B,
MenuItem = 0x0000000C,
ToolTip = 0x0000000D,
Application = 0x0000000E,
Document = 0x0000000F,
Pane = 0x00000010,
Chart = 0x00000011,
Dialog = 0x00000012,
Border = 0x00000013,
Grouping = 0x00000014,
Separator = 0x00000015,
ToolBar = 0x00000016,
StatusBar = 0x00000017,
Table = 0x00000018,
ColumnHeader = 0x00000019,
RowHeader = 0x0000001A,
Column = 0x0000001B,
Row = 0x0000001C,
Cell = 0x0000001D,
Link = 0x0000001E,
HelpBalloon = 0x0000001F,
Assistant = 0x00000020,
List = 0x00000021,
ListItem = 0x00000022,
Tree = 0x00000023,
TreeItem = 0x00000024,
PageTab = 0x00000025,
PropertyPage = 0x00000026,
Indicator = 0x00000027,
Graphic = 0x00000028,
StaticText = 0x00000029,
EditableText = 0x0000002A, // Editable, selectable, etc.
PushButton = 0x0000002B,
CheckBox = 0x0000002C,
RadioButton = 0x0000002D,
ComboBox = 0x0000002E,
// DropList = 0x0000002F,
ProgressBar = 0x00000030,
Dial = 0x00000031,
HotkeyField = 0x00000032,
Slider = 0x00000033,
SpinBox = 0x00000034,
Canvas = 0x00000035,
Animation = 0x00000036,
Equation = 0x00000037,
ButtonDropDown = 0x00000038,
ButtonMenu = 0x00000039,
ButtonDropGrid = 0x0000003A,
Whitespace = 0x0000003B,
PageTabList = 0x0000003C,
Clock = 0x0000003D,
Splitter = 0x0000003E,
// Additional Qt roles where enum value does not map directly to MSAA:
LayeredPane = 0x0000003F,
UserRole = 0x0000ffff
};
enum Text {
Name = 0,
Description,
Value,
Help,
Accelerator,
UserText = 0x0000ffff
};
enum RelationFlag {
Unrelated = 0x00000000,
Self = 0x00000001,
Ancestor = 0x00000002,
Child = 0x00000004,
Descendent = 0x00000008,
Sibling = 0x00000010,
HierarchyMask = 0x000000ff,
Up = 0x00000100,
Down = 0x00000200,
Left = 0x00000400,
Right = 0x00000800,
Covers = 0x00001000,
Covered = 0x00002000,
GeometryMask = 0x0000ff00,
FocusChild = 0x00010000,
Label = 0x00020000,
Labelled = 0x00040000,
Controller = 0x00080000,
Controlled = 0x00100000,
LogicalMask = 0x00ff0000
};
Q_DECLARE_FLAGS(Relation, RelationFlag)
enum Action {
DefaultAction = 0,
Press = -1,
FirstStandardAction = Press,
SetFocus = -2,
Increase = -3,
Decrease = -4,
Accept = -5,
Cancel = -6,
Select = -7,
ClearSelection = -8,
RemoveSelection = -9,
ExtendSelection = -10,
AddToSelection = -11,
LastStandardAction = AddToSelection
};
enum Method {
ListSupportedMethods = 0,
SetCursorPosition = 1,
GetCursorPosition = 2,
ForegroundColor = 3,
BackgroundColor = 4
};
typedef QAccessibleInterface*(*InterfaceFactory)(const QString &key, QObject*);
typedef void(*UpdateHandler)(QObject*, int who, Event reason);
typedef void(*RootObjectHandler)(QObject*);
static void installFactory(InterfaceFactory);
static void removeFactory(InterfaceFactory);
static UpdateHandler installUpdateHandler(UpdateHandler);
static RootObjectHandler installRootObjectHandler(RootObjectHandler);
static QAccessibleInterface *queryAccessibleInterface(QObject *);
static void updateAccessibility(QObject *, int who, Event reason);
static bool isActive();
static void setRootObject(QObject*);
static void initialize();
static void cleanup();
private:
static UpdateHandler updateHandler;
static RootObjectHandler rootObjectHandler;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QAccessible::State)
Q_DECLARE_OPERATORS_FOR_FLAGS(QAccessible::Relation)
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QSet<QAccessible::Method>)
QT_BEGIN_NAMESPACE
namespace QAccessible2
{
enum InterfaceType
{
TextInterface,
EditableTextInterface,
ValueInterface,
TableInterface,
ActionInterface,
ImageInterface
};
}
class QAccessible2Interface;
class QAccessibleTextInterface;
class QAccessibleEditableTextInterface;
class QAccessibleValueInterface;
class QAccessibleTableInterface;
class QAccessibleActionInterface;
class QAccessibleImageInterface;
class Q_GUI_EXPORT QAccessibleInterface : public QAccessible
{
public:
virtual ~QAccessibleInterface() {}
// check for valid pointers
virtual bool isValid() const = 0;
virtual QObject *object() const = 0;
// hierarchy
virtual int childCount() const = 0;
virtual int indexOfChild(const QAccessibleInterface *) const = 0;
// relations
virtual Relation relationTo(int child, const QAccessibleInterface *other,
int otherChild) const = 0;
virtual int childAt(int x, int y) const = 0;
// navigation
virtual int navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const = 0;
// properties and state
virtual QString text(Text t, int child) const = 0;
virtual void setText(Text t, int child, const QString &text) = 0;
virtual QRect rect(int child) const = 0;
virtual Role role(int child) const = 0;
virtual State state(int child) const = 0;
// action
virtual int userActionCount(int child) const = 0;
virtual QString actionText(int action, Text t, int child) const = 0;
virtual bool doAction(int action, int child, const QVariantList &params = QVariantList()) = 0;
QVariant invokeMethod(Method method, int child = 0,
const QVariantList &params = QVariantList());
inline QSet<Method> supportedMethods()
{ return qvariant_cast<QSet<Method> >(invokeMethod(ListSupportedMethods)); }
inline QColor foregroundColor()
{ return qvariant_cast<QColor>(invokeMethod(ForegroundColor)); }
inline QColor backgroundColor()
{ return qvariant_cast<QColor>(invokeMethod(BackgroundColor)); }
inline QAccessibleTextInterface *textInterface()
{ return reinterpret_cast<QAccessibleTextInterface *>(cast_helper(QAccessible2::TextInterface)); }
inline QAccessibleEditableTextInterface *editableTextInterface()
{ return reinterpret_cast<QAccessibleEditableTextInterface *>(cast_helper(QAccessible2::EditableTextInterface)); }
inline QAccessibleValueInterface *valueInterface()
{ return reinterpret_cast<QAccessibleValueInterface *>(cast_helper(QAccessible2::ValueInterface)); }
inline QAccessibleTableInterface *tableInterface()
{ return reinterpret_cast<QAccessibleTableInterface *>(cast_helper(QAccessible2::TableInterface)); }
inline QAccessibleActionInterface *actionInterface()
{ return reinterpret_cast<QAccessibleActionInterface *>(cast_helper(QAccessible2::ActionInterface)); }
inline QAccessibleImageInterface *imageInterface()
{ return reinterpret_cast<QAccessibleImageInterface *>(cast_helper(QAccessible2::ImageInterface)); }
private:
QAccessible2Interface *cast_helper(QAccessible2::InterfaceType);
};
class Q_GUI_EXPORT QAccessibleInterfaceEx: public QAccessibleInterface
{
public:
virtual QVariant invokeMethodEx(Method method, int child, const QVariantList &params) = 0;
virtual QVariant virtual_hook(const QVariant &data);
virtual QAccessible2Interface *interface_cast(QAccessible2::InterfaceType)
{ return 0; }
};
class Q_GUI_EXPORT QAccessibleEvent : public QEvent
{
public:
inline QAccessibleEvent(Type type, int child);
inline int child() const { return c; }
inline QString value() const { return val; }
inline void setValue(const QString &aText) { val = aText; }
private:
int c;
QString val;
};
inline QAccessibleEvent::QAccessibleEvent(Type atype, int achild)
: QEvent(atype), c(achild) {}
#define QAccessibleInterface_iid "com.trolltech.Qt.QAccessibleInterface"
Q_DECLARE_INTERFACE(QAccessibleInterface, QAccessibleInterface_iid)
#endif // QT_NO_ACCESSIBILITY
QT_END_NAMESPACE
QT_END_HEADER
#endif // QACCESSIBLE_H
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