QGraphicsSceneWheelEvent

The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework. More…

Synopsis

Functions

• def buttons ()

• def delta ()

• def isInverted ()

• def modifiers ()

• def orientation ()

• def phase ()

• def pixelDelta ()

• def pos ()

• def scenePos ()

• def screenPos ()

• def setButtons (buttons)

• def setDelta (delta)

• def setInverted (inverted)

• def setModifiers (modifiers)

• def setOrientation (orientation)

• def setPhase (scrollPhase)

• def setPixelDelta (delta)

• def setPos (pos)

• def setScenePos (pos)

• def setScreenPos (pos)

Detailed Description

The QGraphicsSceneWheelEvent class provides wheel events in the graphics view framework.

QWheelEvent s received by a QGraphicsView are translated into QGraphicsSceneWheelEvents; it translates the QWheelEvent::globalPos() into item, scene, and screen coordinates ( pos() , scenePos() , and screenPos() ).

See also

QGraphicsSceneMouseEvent QGraphicsSceneContextMenuEvent QGraphicsSceneHoverEvent QWheelEvent

class PySide6.QtWidgets.QGraphicsSceneWheelEvent([type=QEvent.Type.None])

Parameters

type – Type

PySide6.QtWidgets.QGraphicsSceneWheelEvent.buttons()

Return type

MouseButtons

Returns the mouse buttons that were pressed when the wheel event occurred.

See also

modifiers()

PySide6.QtWidgets.QGraphicsSceneWheelEvent.delta()

Return type

int

Returns the distance that the wheel is rotated, in eighths (1/8s) of a degree. A positive value indicates that the wheel was rotated forwards away from the user; a negative value indicates that the wheel was rotated backwards toward the user.

Most mouse types work in steps of 15 degrees, in which case the delta value is a multiple of 120 (== 15 * 8).

PySide6.QtWidgets.QGraphicsSceneWheelEvent.isInverted()

Return type

bool

Returns whether the delta values delivered with the event are inverted.

PySide6.QtWidgets.QGraphicsSceneWheelEvent.modifiers()

Return type

KeyboardModifiers

Returns the keyboard modifiers that were active when the wheel event occurred.

See also

buttons()

PySide6.QtWidgets.QGraphicsSceneWheelEvent.orientation()

Return type

Orientation

Returns the wheel orientation.

PySide6.QtWidgets.QGraphicsSceneWheelEvent.phase()

Return type

ScrollPhase

Returns the scrolling phase of this wheel event.

See also

phase

PySide6.QtWidgets.QGraphicsSceneWheelEvent.pixelDelta()

Return type

PySide6.QtCore.QPoint

Returns the scrolling distance in pixels on screen. This value is provided on platforms that support high-resolution pixel-based delta values, such as macOS. The value should be used directly to scroll content on screen.

See also

pixelDelta

PySide6.QtWidgets.QGraphicsSceneWheelEvent.pos()

Return type

PySide6.QtCore.QPointF

Returns the position of the cursor in item coordinates when the wheel event occurred.

See also

scenePos() screenPos()

PySide6.QtWidgets.QGraphicsSceneWheelEvent.scenePos()

Return type

PySide6.QtCore.QPointF

Returns the position of the cursor in scene coordinates when the wheel event occurred.

See also

pos() screenPos()

PySide6.QtWidgets.QGraphicsSceneWheelEvent.screenPos()

Return type

PySide6.QtCore.QPoint

Returns the position of the cursor in screen coordinates when the wheel event occurred.

See also

pos() scenePos()

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setButtons(buttons)

Parameters

buttons – MouseButtons

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setDelta(delta)

Parameters

delta – int

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setInverted(inverted)

Parameters

inverted – bool

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setModifiers(modifiers)

Parameters

modifiers – KeyboardModifiers

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setOrientation(orientation)

Parameters

orientation – Orientation

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setPhase(scrollPhase)

Parameters

scrollPhase – ScrollPhase

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setPixelDelta(delta)

Parameters

delta – PySide6.QtCore.QPoint

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setPos(pos)

Parameters

pos – PySide6.QtCore.QPointF

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setScenePos(pos)

Parameters

pos – PySide6.QtCore.QPointF

PySide6.QtWidgets.QGraphicsSceneWheelEvent.setScreenPos(pos)

Parameters

pos – PySide6.QtCore.QPoint