class QGestureEvent#

The QGestureEvent class provides the description of triggered gestures. More…

New in version 4.6.

Synopsis#

Methods#

def __init__()
def accept()
def activeGestures()
def canceledGestures()
def gesture()
def gestures()
def ignore()
def isAccepted()
def mapToGraphicsScene()
def setAccepted()
def setWidget()
def widget()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

Detailed Description#

The QGestureEvent class contains a list of gestures, which can be obtained using the gestures() function.

The gestures are either active or canceled. A list of those that are currently being executed can be obtained using the activeGestures() function. A list of those which were previously active and have been canceled can be accessed using the 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 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 accept() for each of them, or an event filter consumes the event.

Further Reading#

For an overview of gesture handling in Qt and information on using gestures in your applications, see the Gestures in Widgets and Graphics View document.

See also

QGesture QGestureRecognizer grabGesture() grabGesture()

__init__(gestures)#

Parameters:: gestures – .list of QGesture

Creates new QGestureEvent containing a list of gestures.

accept(arg__1)#

Parameters:: arg__1 – 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.

See also

ignore()

accept(arg__1)

Parameters:: arg__1 – GestureType

Sets the accept flag of the given gestureType, the equivalent of calling setAccepted(gestureType, true) .

Setting the accept flag indicates that the event receiver wants the gesture. Unwanted gestures may be propagated to the parent widget.

See also

ignore()

activeGestures()#

Return type:: .list of QGesture

Returns a list of active (not canceled) gestures.

canceledGestures()#

Return type:: .list of QGesture

Returns a list of canceled gestures.

gesture(type)#

Parameters:: type – GestureType
Return type:: QGesture

Returns a gesture object by type.

gestures()#

Return type:: .list of QGesture

Returns all gestures that are delivered in the event.

ignore(arg__1)#

Parameters:: arg__1 – 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.

See also

accept()

ignore(arg__1)

Parameters:: arg__1 – GestureType

Clears the accept flag parameter of the given gestureType, 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.

See also

accept()

isAccepted(arg__1)#

Parameters:: arg__1 – QGesture
Return type:: bool

Returns true if the gesture is accepted; otherwise returns false.

isAccepted(arg__1)

Parameters:: arg__1 – GestureType
Return type:: bool

Returns true if the gesture of type gestureType is accepted; otherwise returns false.

mapToGraphicsScene(gesturePoint)#

Parameters:: gesturePoint – QPointF
Return type:: 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 QGraphicsObject to translate a point in screen coordinates to scene-local coordinates.

See also

isNull()

setAccepted(arg__1, arg__2)#

Parameters:

arg__1 – QGesture
arg__2 – bool

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.

For convenience, the accept flag can also be set with accept(gesture) , and cleared with ignore(gesture) .

See also

isAccepted()

setAccepted(arg__1, arg__2)

Parameters:

arg__1 – GestureType
arg__2 – bool

Sets the accept flag of the given gestureType object to the specified value.

Setting the accept flag indicates that the event receiver wants to receive gestures of the specified type, gestureType. 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.

For convenience, the accept flag can also be set with accept(gestureType) , and cleared with ignore(gestureType) .

setWidget(widget)#

Parameters:: widget – QWidget

widget()#

Return type:: QWidget

Returns the widget on which the event occurred.