|
| QColor | alternateBase () const |
| |
| QColor | base () const |
| |
| QColor | button () const |
| |
| QColor | buttonText () const |
| |
| QDeclarativeSystemPalette::ColorGroup | colorGroup () const |
| |
| QColor | dark () const |
| |
| QColor | highlight () const |
| |
| QColor | highlightedText () const |
| |
| QColor | light () const |
| |
| QColor | mid () const |
| |
| QColor | midlight () const |
| |
| | QDeclarativeSystemPalette (QObject *parent=0) |
| |
| void | setColorGroup (QDeclarativeSystemPalette::ColorGroup) |
| |
| QColor | shadow () const |
| |
| QColor | text () const |
| |
| QColor | window () const |
| |
| QColor | windowText () const |
| |
| | ~QDeclarativeSystemPalette () |
| |
| 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...
|
| |
| 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...
|
| |
|
| void | deleteLater () |
| | Schedules this object for deletion. More...
|
| |
| 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 const QMetaObject | staticMetaObject |
| | This variable stores the meta-object for the class. More...
|
| |
| 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...
|
| |
| QScopedPointer< QObjectData > | d_ptr |
| |
| static const QMetaObject | staticQtMetaObject |
| |
| 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...
|
| |
| bool QDeclarativeSystemPalette::eventFilter |
( |
QObject * |
, |
|
|
QEvent * |
|
|
) |
| |
|
privatevirtual |
Filters events if this object has been installed as an event filter for the watched object.
In your reimplementation of this function, if you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false.
Example:
{
public:
MainWindow();
protected:
private:
};
MainWindow::MainWindow()
{
setCentralWidget(textEdit);
textEdit->installEventFilter(this);
}
{
if (obj == textEdit) {
qDebug() <<
"Ate key press" << keyEvent->
key();
return true;
} else {
return false;
}
} else {
}
}
Notice in the example above that unhandled events are passed to the base class's eventFilter() function, since the base class might have reimplemented eventFilter() for its own internal purposes.
- Warning
- If you delete the receiver object in this function, be sure to return true. Otherwise, Qt will forward the event to the deleted object and the program might crash.
- See also
- installEventFilter()
Reimplemented from QObject.
Definition at line 338 of file qdeclarativesystempalette.cpp.
340 if (watched ==
qApp) {
static void postEvent(QObject *receiver, QEvent *event)
Adds the event event, with the object receiver as the receiver of the event, to an event queue and re...
virtual bool eventFilter(QObject *, QEvent *)
Filters events if this object has been installed as an event filter for the watched object...
bool event(QEvent *event)
This virtual function receives events to an object and should return true if the event e was recogniz...
The QEvent class is the base class of all event classes.
Signals inherited from QObject