QGraphicsSceneWheelEvent ¶

概要 ¶

详细描述 ¶

class PySide.QtGui. QGraphicsSceneWheelEvent ( [ type=None ] ) ¶

参数：	type – PySide.QtCore.QEvent.Type

构造 PySide.QtGui.QGraphicsSceneWheelEvent of type type , which is always QEvent.GraphicsSceneWheel .

PySide.QtGui.QGraphicsSceneWheelEvent. buttons ( ) ¶

返回类型：	PySide.QtCore.Qt.MouseButtons

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

另请参阅

PySide.QtGui.QGraphicsSceneWheelEvent.modifiers()

PySide.QtGui.QGraphicsSceneWheelEvent. delta ( ) ¶

返回类型：	PySide.QtCore.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).

PySide.QtGui.QGraphicsSceneWheelEvent. modifiers ( ) ¶

返回类型：	PySide.QtCore.Qt.KeyboardModifiers

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

另请参阅

PySide.QtGui.QGraphicsSceneWheelEvent.buttons()

PySide.QtGui.QGraphicsSceneWheelEvent. orientation ( ) ¶

返回类型：	PySide.QtCore.Qt.Orientation

Returns the wheel orientation.

PySide.QtGui.QGraphicsSceneWheelEvent. pos ( ) ¶

返回类型：	PySide.QtCore.QPointF

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

另请参阅

PySide.QtGui.QGraphicsSceneWheelEvent.scenePos() PySide.QtGui.QGraphicsSceneWheelEvent.screenPos()

PySide.QtGui.QGraphicsSceneWheelEvent. scenePos ( ) ¶

返回类型：	PySide.QtCore.QPointF

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

另请参阅

PySide.QtGui.QGraphicsSceneWheelEvent.pos() PySide.QtGui.QGraphicsSceneWheelEvent.screenPos()

PySide.QtGui.QGraphicsSceneWheelEvent. screenPos ( ) ¶

返回类型：	PySide.QtCore.QPoint

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

另请参阅

PySide.QtGui.QGraphicsSceneWheelEvent.pos() PySide.QtGui.QGraphicsSceneWheelEvent.scenePos()

PySide.QtGui.QGraphicsSceneWheelEvent. setButtons ( buttons ) ¶

参数：	buttons – PySide.QtCore.Qt.MouseButtons

PySide.QtGui.QGraphicsSceneWheelEvent. setDelta ( delta ) ¶

参数：	delta – PySide.QtCore.int

另请参阅

PySide.QtGui.QGraphicsSceneWheelEvent.delta()

PySide.QtGui.QGraphicsSceneWheelEvent. setModifiers ( modifiers ) ¶

参数：	modifiers – PySide.QtCore.Qt.KeyboardModifiers

PySide.QtGui.QGraphicsSceneWheelEvent. setOrientation ( orientation ) ¶

参数：	orientation – PySide.QtCore.Qt.Orientation

PySide.QtGui.QGraphicsSceneWheelEvent. setPos ( pos ) ¶

参数：	pos – PySide.QtCore.QPointF

另请参阅

PySide.QtGui.QGraphicsSceneWheelEvent.pos()

PySide.QtGui.QGraphicsSceneWheelEvent. setScenePos ( pos ) ¶

参数：	pos – PySide.QtCore.QPointF

另请参阅

PySide.QtGui.QGraphicsSceneWheelEvent.scenePos()

PySide.QtGui.QGraphicsSceneWheelEvent. setScreenPos ( pos ) ¶

参数：	pos – PySide.QtCore.QPoint

另请参阅

PySide.QtGui.QGraphicsSceneWheelEvent.screenPos()