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Qt 4.8
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Qt 4.8
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The QAccessiblePlugin class provides an abstract base for accessibility plugins. More...
#include <qaccessibleplugin.h>
Public Functions | |
| virtual QAccessibleInterface * | create (const QString &key, QObject *object)=0 |
| Creates and returns a QAccessibleInterface implementation for the class key and the object object. More... | |
| virtual QStringList | keys () const =0 |
| Returns the list of keys this plugin supports. More... | |
| QAccessiblePlugin (QObject *parent=0) | |
| Constructs an accessibility plugin with the given parent. More... | |
| ~QAccessiblePlugin () | |
| Destroys the accessibility plugin. More... | |
 Public Functions inherited from QObject | |
| bool | blockSignals (bool b) |
| If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More... | |
| const QObjectList & | children () const |
| Returns a list of child objects. More... | |
| bool | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
| bool | disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0) |
| bool | disconnect (const QObject *receiver, const char *member=0) |
| void | dumpObjectInfo () |
| Dumps information about signal connections, etc. More... | |
| void | dumpObjectTree () |
| Dumps a tree of children to the debug output. More... | |
| QList< QByteArray > | dynamicPropertyNames () const |
| Returns the names of all properties that were dynamically added to the object using setProperty(). More... | |
| virtual bool | event (QEvent *) |
| This virtual function receives events to an object and should return true if the event e was recognized and processed. More... | |
| virtual bool | eventFilter (QObject *, QEvent *) |
| Filters events if this object has been installed as an event filter for the watched object. More... | |
| template<typename T > | |
| T | findChild (const QString &aName=QString()) const |
| Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More... | |
| template<typename T > | |
| QList< T > | findChildren (const QString &aName=QString()) const |
| Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More... | |
| template<typename T > | |
| QList< T > | findChildren (const QRegExp &re) const |
| bool | inherits (const char *classname) const |
| Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More... | |
| void | installEventFilter (QObject *) |
| Installs an event filter filterObj on this object. More... | |
| bool | isWidgetType () const |
| Returns true if the object is a widget; otherwise returns false. More... | |
| void | killTimer (int id) |
| Kills the timer with timer identifier, id. More... | |
| virtual const QMetaObject * | metaObject () const |
| Returns a pointer to the meta-object of this object. More... | |
| void | moveToThread (QThread *thread) |
| Changes the thread affinity for this object and its children. More... | |
| QString | objectName () const |
| QObject * | parent () const |
| Returns a pointer to the parent object. More... | |
| QVariant | property (const char *name) const |
| Returns the value of the object's name property. More... | |
| Q_INVOKABLE | QObject (QObject *parent=0) |
| Constructs an object with parent object parent. More... | |
| void | removeEventFilter (QObject *) |
| Removes an event filter object obj from this object. More... | |
| void | setObjectName (const QString &name) |
| void | setParent (QObject *) |
| Makes the object a child of parent. More... | |
| bool | setProperty (const char *name, const QVariant &value) |
| Sets the value of the object's name property to value. More... | |
| void | setUserData (uint id, QObjectUserData *data) |
| bool | signalsBlocked () const |
| Returns true if signals are blocked; otherwise returns false. More... | |
| int | startTimer (int interval) |
| Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More... | |
| QThread * | thread () const |
| Returns the thread in which the object lives. More... | |
| QObjectUserData * | userData (uint id) const |
| virtual | ~QObject () |
| Destroys the object, deleting all its child objects. More... | |
| Public Functions inherited from QFactoryInterface | |
| virtual | ~QFactoryInterface () |
Additional Inherited Members | |
| Public Types inherited from QAccessible | |
| 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 } |
| This enum describes the possible types of action that can occur. More... | |
| 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, ActionChanged = 0x0101, ActiveDescendantChanged = 0x0102, AttributeChanged = 0x0103, DocumentContentChanged = 0x0104, DocumentLoadComplete = 0x0105, DocumentLoadStopped = 0x0106, DocumentReload = 0x0107, HyperlinkEndIndexChanged = 0x0108, HyperlinkNumberOfAnchorsChanged = 0x0109, HyperlinkSelectedLinkChanged = 0x010A, HypertextLinkActivated = 0x010B, HypertextLinkSelected = 0x010C, HyperlinkStartIndexChanged = 0x010D, HypertextChanged = 0x010E, HypertextNLinksChanged = 0x010F, ObjectAttributeChanged = 0x0110, PageChanged = 0x0111, SectionChanged = 0x0112, TableCaptionChanged = 0x0113, TableColumnDescriptionChanged = 0x0114, TableColumnHeaderChanged = 0x0115, TableModelChanged = 0x0116, TableRowDescriptionChanged = 0x0117, TableRowHeaderChanged = 0x0118, TableSummaryChanged = 0x0119, TextAttributeChanged = 0x011A, TextCaretMoved = 0x011B, TextColumnChanged = 0x011D, TextInserted = 0x011E, TextRemoved = 0x011F, TextUpdated = 0x0120, TextSelectionChanged = 0x0121, VisibleDataChanged = 0x0122, 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 } |
| This enum type defines accessible event types. More... | |
| typedef QAccessibleInterface *(* | InterfaceFactory) (const QString &key, QObject *) |
| This is a typedef for a pointer to a function with the following signature: More... | |
| enum | Method { ListSupportedMethods = 0, SetCursorPosition = 1, GetCursorPosition = 2, ForegroundColor = 3, BackgroundColor = 4 } |
| This enum describes the possible types of methods that can be invoked on an accessible object. More... | |
| 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 } |
| This enum type defines bit flags that can be combined to indicate the relationship between two accessible objects. More... | |
| 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, PushButton = 0x0000002B, CheckBox = 0x0000002C, RadioButton = 0x0000002D, ComboBox = 0x0000002E, 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, LayeredPane = 0x0000003F, Terminal = 0x00000040, Desktop = 0x00000041, UserRole = 0x0000ffff } |
| This enum defines the role of an accessible object. More... | |
| typedef void(* | RootObjectHandler) (QObject *) |
| A function pointer type. More... | |
| 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, Marqueed = 0x00002000, Animated = 0x00004000, Invisible = 0x00008000, Offscreen = 0x00010000, Sizeable = 0x00020000, Movable = 0x00040000, SelfVoicing = 0x00080000, Focusable = 0x00100000, Selectable = 0x00200000, Linked = 0x00400000, Traversed = 0x00800000, MultiSelectable = 0x01000000, ExtSelectable = 0x02000000, Protected = 0x20000000, HasPopup = 0x40000000, Modal = 0x80000000, HasInvokeExtension = 0x10000000 } |
| This enum type defines bit flags that can be combined to indicate the state of an accessible object. More... | |
| enum | Text { Name = 0, Description, Value, Help, Accelerator, UserText = 0x0000ffff } |
| This enum specifies string information that an accessible object returns. More... | |
| typedef void(* | UpdateHandler) (QObject *, int who, Event reason) |
| A function pointer type. More... | |
| Public Slots inherited from QObject | |
| void | deleteLater () |
| Schedules this object for deletion. More... | |
| Signals inherited from QObject | |
| void | destroyed (QObject *=0) |
| This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More... | |
| Static Public Functions inherited from QObject | |
| static bool | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
| Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More... | |
| static bool | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
| static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
| Disconnects signal in object sender from method in object receiver. More... | |
| static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
| static uint | registerUserData () |
| static QString | tr (const char *sourceText, const char *comment=0, int n=-1) |
| static QString | trUtf8 (const char *sourceText, const char *comment=0, int n=-1) |
| Static Public Functions inherited from QAccessible | |
| static void | cleanup () |
| static void | initialize () |
| static void | installFactory (InterfaceFactory) |
| Installs the InterfaceFactory factory. More... | |
| static RootObjectHandler | installRootObjectHandler (RootObjectHandler) |
| Installs the given handler as the function to be used by setRootObject(), and returns the previously installed handler. More... | |
| static UpdateHandler | installUpdateHandler (UpdateHandler) |
| Installs the given handler as the function to be used by updateAccessibility(), and returns the previously installed handler. More... | |
| static bool | isActive () |
| Returns true if an accessibility implementation has been requested during the runtime of the application; otherwise returns false. More... | |
| static QAccessibleInterface * | queryAccessibleInterface (QObject *) |
| If a QAccessibleInterface implementation exists for the given object, this function returns a pointer to the implementation; otherwise it returns 0. More... | |
| static void | removeFactory (InterfaceFactory) |
| Removes factory from the list of installed InterfaceFactories. More... | |
| static void | setRootObject (QObject *) |
| Sets the root accessible object of this application to object. More... | |
| static void | updateAccessibility (QObject *, int who, Event reason) |
| Notifies accessibility clients about a change in object's accessibility information. More... | |
| Static Public Variables inherited from QObject | |
| static const QMetaObject | staticMetaObject |
| This variable stores the meta-object for the class. More... | |
| Protected Functions inherited from QObject | |
| virtual void | childEvent (QChildEvent *) |
| This event handler can be reimplemented in a subclass to receive child events. More... | |
| virtual void | connectNotify (const char *signal) |
| This virtual function is called when something has been connected to signal in this object. More... | |
| virtual void | customEvent (QEvent *) |
| This event handler can be reimplemented in a subclass to receive custom events. More... | |
| virtual void | disconnectNotify (const char *signal) |
| This virtual function is called when something has been disconnected from signal in this object. More... | |
| QObject (QObjectPrivate &dd, QObject *parent=0) | |
| int | receivers (const char *signal) const |
| Returns the number of receivers connected to the signal. More... | |
| QObject * | sender () const |
| Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More... | |
| int | senderSignalIndex () const |
| virtual void | timerEvent (QTimerEvent *) |
| This event handler can be reimplemented in a subclass to receive timer events for the object. More... | |
| Protected Variables inherited from QObject | |
| QScopedPointer< QObjectData > | d_ptr |
| Static Protected Variables inherited from QObject | |
| static const QMetaObject | staticQtMetaObject |
| Related Functions inherited from QObject | |
| T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
| QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
| QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QRegExp ®Exp)() |
| T * | qobject_cast (QObject *object) |
| QObjectList | |
| void * | qt_find_obj_child (QObject *parent, const char *type, const QString &name) |
| Returns a pointer to the object named name that inherits type and with a given parent. More... | |
The QAccessiblePlugin class provides an abstract base for accessibility plugins.
Writing an accessibility plugin is achieved by subclassing this base class, reimplementing the pure virtual functions keys() and create(), and exporting the class with the Q_EXPORT_PLUGIN2() macro.
Definition at line 69 of file qaccessibleplugin.h.
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explicit |
Constructs an accessibility plugin with the given parent.
This is invoked automatically by the Q_EXPORT_PLUGIN2() macro.
Definition at line 73 of file qaccessibleplugin.cpp.
| QAccessiblePlugin::~QAccessiblePlugin | ( | ) |
Destroys the accessibility plugin.
You never have to call this explicitly. Qt destroys a plugin automatically when it is no longer used.
Definition at line 84 of file qaccessibleplugin.cpp.
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pure virtual |
Creates and returns a QAccessibleInterface implementation for the class key and the object object.
Keys are case sensitive.
Implements QAccessibleFactoryInterface.
Implemented in AccessibleFactory, and CompatAccessibleFactory.
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pure virtual |
Returns the list of keys this plugin supports.
These keys must be the class names that this plugin provides an accessibility implementation for.
Implements QFactoryInterface.
Implemented in AccessibleFactory, and CompatAccessibleFactory.