QGraphicsSceneHoverEvent 类

QGraphicsSceneHoverEvent 类提供在图形视图框架中的悬停事件。 更多...

头: #include <QGraphicsSceneHoverEvent>
CMake: find_package(Qt6 REQUIRED COMPONENTS Widgets)
target_link_libraries(mytarget PRIVATE Qt6::Widgets)
qmake: QT += widgets
继承: QGraphicsSceneEvent

公共函数

virtual ~QGraphicsSceneHoverEvent ()
QPointF lastPos () const
QPointF lastScenePos () const
QPoint lastScreenPos () const
Qt::KeyboardModifiers modifiers () const
QPointF pos () const
QPointF scenePos () const
QPoint screenPos () const

详细描述

QGraphicsView 接收 QHoverEvent 事件,它将其翻译成 QGraphicsSceneHoverEvent。然后,事件被转发给 QGraphicsScene 关联视图。

另请参阅 QGraphicsSceneMouseEvent , QGraphicsSceneContextMenuEvent , QGraphicsSceneWheelEvent ,和 QHoverEvent .

成员函数文档编制

[virtual noexcept] QGraphicsSceneHoverEvent:: ~QGraphicsSceneHoverEvent ()

销毁事件。

QPointF QGraphicsSceneHoverEvent:: lastPos () const

Returns the last recorded mouse cursor position in item coordinates.

另请参阅 lastScenePos (), lastScreenPos (),和 pos ().

QPointF QGraphicsSceneHoverEvent:: lastScenePos () const

Returns the last recorded, the scene coordinates of the previous mouse or hover event received by the view, that created the event mouse cursor position in scene coordinates.

另请参阅 lastPos (), lastScreenPos (),和 scenePos ().

QPoint QGraphicsSceneHoverEvent:: lastScreenPos () const

Returns the last recorded mouse cursor position in screen coordinates. The last recorded position is the position of the previous mouse or hover event received by the view that created the event.

另请参阅 lastPos (), lastScenePos (),和 screenPos ().

Qt::KeyboardModifiers QGraphicsSceneHoverEvent:: modifiers () const

Returns the keyboard modifiers at the moment the hover event was sent.

QPointF QGraphicsSceneHoverEvent:: pos () const

Returns the position of the mouse cursor in item coordinates at the moment the hover event was sent.

另请参阅 scenePos () 和 screenPos ().

QPointF QGraphicsSceneHoverEvent:: scenePos () const

Returns the position of the mouse cursor in scene coordinates at the moment the hover event was sent.

另请参阅 pos () 和 screenPos ().

QPoint QGraphicsSceneHoverEvent:: screenPos () const

Returns the position of the mouse cursor in screen coordinates at the moment the hover event was sent.

另请参阅 pos () 和 scenePos ().