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QGraphicsSceneWheelEvent Class Reference
^[QtGui module]

 #include <QGraphicsSceneWheelEvent>

Inherits QGraphicsSceneEvent.

This class was introduced in Qt 4.2.

• List of all members, including inherited members

Public Functions

• QGraphicsSceneWheelEvent ( Type type = None )
• ~QGraphicsSceneWheelEvent ()
• Qt::MouseButtons buttons () const
• int delta () const
• Qt::KeyboardModifiers modifiers () const
• QPointF pos () const
• QPointF scenePos () const
• QPoint screenPos () const
• void setButtons ( Qt::MouseButtons buttons )
• void setDelta ( int delta )
• void setModifiers ( Qt::KeyboardModifiers modifiers )
• void setPos ( const QPointF & pos )
• void setScenePos ( const QPointF & pos )
• void setScreenPos ( const QPoint & pos )

• 2 public functions inherited from QGraphicsSceneEvent
• 6 public functions inherited from QEvent

Additional Inherited Members

• 1 property inherited from QEvent

Detailed Description

Member Function Documentation

QGraphicsSceneWheelEvent::QGraphicsSceneWheelEvent ( Type type = None )

Constructs a QGraphicsSceneWheelEvent of type type.

QGraphicsSceneWheelEvent::~QGraphicsSceneWheelEvent ()

Destroys the QGraphicsSceneWheelEvent.

Qt::MouseButtons QGraphicsSceneWheelEvent::buttons () const

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

See also setButtons() and modifiers().

int QGraphicsSceneWheelEvent::delta () const

Returns the distance that the wheel is rotated, in eights 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).

See also setDelta().

Qt::KeyboardModifiers QGraphicsSceneWheelEvent::modifiers () const

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

See also setModifiers() and buttons().

QPointF QGraphicsSceneWheelEvent::pos () const

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

See also setPos(), scenePos(), and screenPos().

QPointF QGraphicsSceneWheelEvent::scenePos () const

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

See also setScenePos(), pos(), and screenPos().

QPoint QGraphicsSceneWheelEvent::screenPos () const

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

See also setScreenPos(), pos(), and scenePos().

void QGraphicsSceneWheelEvent::setButtons ( Qt::MouseButtons buttons )

Sets the mouse buttons that were pressed when the wheel event occurred to buttons.

See also buttons() and setModifiers().

void QGraphicsSceneWheelEvent::setDelta ( int delta )

Sets the distance that the wheel is rotated to delta.

See also delta().

void QGraphicsSceneWheelEvent::setModifiers ( Qt::KeyboardModifiers modifiers )

Sets the keyboard modifiers that were active when the wheel event occurred to modifiers.

See also modifiers() and setButtons().

void QGraphicsSceneWheelEvent::setPos ( const QPointF & pos )

Sets the position of the cursor in item coordinates when the wheel event occurred to pos.

See also pos(), setScenePos(), and setScreenPos().

void QGraphicsSceneWheelEvent::setScenePos ( const QPointF & pos )

Sets the position of the cursor in scene coordinates when the wheel event occurred to pos.

See also scenePos(), setPos(), and setScreenPos().

void QGraphicsSceneWheelEvent::setScreenPos ( const QPoint & pos )

Sets the position of the cursor in screen coordinates when the wheel event occurred to pos.

See also screenPos(), setPos(), and setScenePos().