QPinchGesture

The QPinchGesture class describes a pinch gesture made by the user. More…

New in version 4.6.

Synopsis

Functions

• def centerPoint ()

• def changeFlags ()

• def lastCenterPoint ()

• def lastRotationAngle ()

• def lastScaleFactor ()

• def rotationAngle ()

• def scaleFactor ()

• def setCenterPoint (value)

• def setChangeFlags (value)

• def setLastCenterPoint (value)

• def setLastRotationAngle (value)

• def setLastScaleFactor (value)

• def setRotationAngle (value)

• def setScaleFactor (value)

• def setStartCenterPoint (value)

• def setTotalChangeFlags (value)

• def setTotalRotationAngle (value)

• def setTotalScaleFactor (value)

• def startCenterPoint ()

• def totalChangeFlags ()

• def totalRotationAngle ()

• def totalScaleFactor ()

Detailed Description

A pinch gesture is a form of touch user input in which the user typically touches two points on the input device with a thumb and finger, before moving them closer together or further apart to change the scale factor, zoom, or level of detail of the user interface.

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.

Instead of repeatedly applying the same pinching gesture, the user may continue to touch the input device in one place, and apply a second touch to a new point, continuing the gesture. When this occurs, gesture events will continue to be delivered to the target object, containing an instance of QPinchGesture in the GestureUpdated state.

See also

QPanGesture QSwipeGesture

class QPinchGesture([parent=None])

Parameters

parent – QObject

PySide2.QtWidgets.QPinchGesture.ChangeFlag

This enum describes the changes that can occur to the properties of the gesture object.

Constant	Description
QPinchGesture.ScaleFactorChanged	The scale factor held by scaleFactor changed.
QPinchGesture.RotationAngleChanged	The rotation angle held by rotationAngle changed.
QPinchGesture.CenterPointChanged	The center point held by centerPoint changed.

See also

changeFlags totalChangeFlags

PySide2.QtWidgets.QPinchGesture.centerPoint()

Return type

QPointF

See also

setCenterPoint()

PySide2.QtWidgets.QPinchGesture.changeFlags()

Return type

ChangeFlags

See also

setChangeFlags()

PySide2.QtWidgets.QPinchGesture.lastCenterPoint()

Return type

QPointF

See also

setLastCenterPoint()

PySide2.QtWidgets.QPinchGesture.lastRotationAngle()

Return type

qreal

See also

setLastRotationAngle()

PySide2.QtWidgets.QPinchGesture.lastScaleFactor()

Return type

qreal

See also

setLastScaleFactor()

PySide2.QtWidgets.QPinchGesture.rotationAngle()

Return type

qreal

See also

setRotationAngle()

PySide2.QtWidgets.QPinchGesture.scaleFactor()

Return type

qreal

See also

setScaleFactor()

PySide2.QtWidgets.QPinchGesture.setCenterPoint(value)

Parameters

value – QPointF

See also

centerPoint()

PySide2.QtWidgets.QPinchGesture.setChangeFlags(value)

Parameters

value – ChangeFlags

See also

changeFlags()

PySide2.QtWidgets.QPinchGesture.setLastCenterPoint(value)

Parameters

value – QPointF

See also

lastCenterPoint()

PySide2.QtWidgets.QPinchGesture.setLastRotationAngle(value)

Parameters

value – qreal

See also

lastRotationAngle()

PySide2.QtWidgets.QPinchGesture.setLastScaleFactor(value)

Parameters

value – qreal

See also

lastScaleFactor()

PySide2.QtWidgets.QPinchGesture.setRotationAngle(value)

Parameters

value – qreal

See also

rotationAngle()

PySide2.QtWidgets.QPinchGesture.setScaleFactor(value)

Parameters

value – qreal

See also

scaleFactor()

PySide2.QtWidgets.QPinchGesture.setStartCenterPoint(value)

Parameters

value – QPointF

See also

startCenterPoint()

PySide2.QtWidgets.QPinchGesture.setTotalChangeFlags(value)

Parameters

value – ChangeFlags

See also

totalChangeFlags()

PySide2.QtWidgets.QPinchGesture.setTotalRotationAngle(value)

Parameters

value – qreal

See also

totalRotationAngle()

PySide2.QtWidgets.QPinchGesture.setTotalScaleFactor(value)

Parameters

value – qreal

See also

totalScaleFactor()

PySide2.QtWidgets.QPinchGesture.startCenterPoint()

Return type

QPointF

See also

setStartCenterPoint()

PySide2.QtWidgets.QPinchGesture.totalChangeFlags()

Return type

ChangeFlags

See also

setTotalChangeFlags()

PySide2.QtWidgets.QPinchGesture.totalRotationAngle()

Return type

qreal

See also

setTotalRotationAngle()

PySide2.QtWidgets.QPinchGesture.totalScaleFactor()

Return type

qreal

See also

setTotalScaleFactor()