注意
该类在 Qt4.6 引入
PySide.QtGui.QGestureEvent class provides the description of triggered gestures.
PySide.QtGui.QGestureEvent class contains a list of gestures, which can be obtained using the PySide.QtGui.QGestureEvent.gestures() 函数。
The gestures are either active or canceled. A list of those that are currently being executed can be obtained using the PySide.QtGui.QGestureEvent.activeGestures() function. A list of those which were previously active and have been canceled can be accessed using the PySide.QtGui.QGestureEvent.canceledGestures() function. A gesture might be canceled if the current window loses focus, for example, or because of a timeout, or for other reasons.
If the event handler does not accept the event by calling the generic QEvent.accept() function, all individual PySide.QtGui.QGesture object that were not accepted and in the Qt.GestureStarted state will be propagated up the parent widget chain until a widget accepts them individually, by calling QGestureEvent.accept() for each of them, or an event filter consumes the event.
For an overview of gesture handling in Qt and information on using gestures in your applications, see the Gestures Programming 文档。
| 参数： | gestures – |
|---|
| 参数： | arg__1 – PySide.QtGui.QGesture |
|---|
Sets the accept flag of the given gesture object, the equivalent of calling setAccepted(gesture, true) .
Setting the accept flag indicates that the event receiver wants the gesture. Unwanted gestures may be propagated to the parent widget.
| 参数： | arg__1 – PySide.QtCore.Qt.GestureType |
|---|
| 返回类型： |
|---|
Returns a list of active (not canceled) gestures.
| 返回类型： |
|---|
Returns a list of canceled gestures.
| 参数： | type – PySide.QtCore.Qt.GestureType |
|---|---|
| 返回类型： | PySide.QtGui.QGesture |
| 返回类型： |
|---|
Returns all gestures that are delivered in the event.
| 参数： | arg__1 – PySide.QtCore.Qt.GestureType |
|---|
| 参数： | arg__1 – PySide.QtGui.QGesture |
|---|
Clears the accept flag parameter of the given gesture object, the equivalent of calling setAccepted(gesture, false) .
Clearing the accept flag indicates that the event receiver does not want the gesture. Unwanted gestures may be propagated to the parent widget.
| 参数： | arg__1 – PySide.QtCore.Qt.GestureType |
|---|---|
| 返回类型： | PySide.QtCore.bool |
| 参数： | arg__1 – PySide.QtGui.QGesture |
|---|---|
| 返回类型： | PySide.QtCore.bool |
返回 true 若 gesture is accepted; otherwise returns false.
| 参数： | gesturePoint – PySide.QtCore.QPointF |
|---|---|
| 返回类型： | PySide.QtCore.QPointF |
Returns the scene-local coordinates if the gesturePoint is inside a graphics view.
This functional might be useful when the gesture event is delivered to a PySide.QtGui.QGraphicsObject to translate a point in screen coordinates to scene-local coordinates.
另请参阅
QPointF.isNull() .
| 参数： |
|
|---|
| 参数： |
|
|---|
Sets the accept flag of the given gesture object to the specified value .
Setting the accept flag indicates that the event receiver wants the gesture . Unwanted gestures may be propagated to the parent widget.
By default, gestures in events of type QEvent.Gesture are accepted, and gestures in QEvent.GestureOverride events are ignored.
为方便起见，接受标志还可以被设置采用 accept(gesture) , and cleared with ignore(gesture) .
| 参数： | widget – PySide.QtGui.QWidget |
|---|
Sets the widget for this event to the widget 指定。
| 返回类型： | PySide.QtGui.QWidget |
|---|
Returns the widget on which the event occurred.
