QGraphicsSceneHoverEvent Class
The QGraphicsSceneHoverEvent class provides hover events in the graphics view framework. 更多...
| 头文件: | #include <QGraphicsSceneHoverEvent> |
| qmake: | QT += widgets |
| 开始支持版本: | Qt 4.2 |
| 基类: | QGraphicsSceneEvent |
公有函数
| ~QGraphicsSceneHoverEvent() | |
| QPointF | lastPos() const |
| QPointF | lastScenePos() const |
| QPoint | lastScreenPos() const |
| Qt::KeyboardModifiers | modifiers() const |
| QPointF | pos() const |
| QPointF | scenePos() const |
| QPoint | screenPos() const |
- 1 个公有函数继承自 QGraphicsSceneEvent
- 6 个公有函数继承自 QEvent
其他继承的成员
详细描述
The QGraphicsSceneHoverEvent class provides hover events in the graphics view framework.
When a QGraphicsView receives a QHoverEvent event, it translates it into QGraphicsSceneHoverEvent. The event is then forwarded to the QGraphicsScene associated with the view.
参见 QGraphicsSceneMouseEvent, QGraphicsSceneContextMenuEvent, QGraphicsSceneWheelEvent, and QHoverEvent.
成员函数
QGraphicsSceneHoverEvent::~QGraphicsSceneHoverEvent()
Destroys the event.
QPointF QGraphicsSceneHoverEvent::lastPos() const
Returns the last recorded mouse cursor position in item coordinates.
This function was introduced in Qt 4.4.
参见 lastScenePos(), lastScreenPos(), and 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.
This function was introduced in Qt 4.4.
参见 lastPos(), lastScreenPos(), and 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.
This function was introduced in Qt 4.4.
参见 lastPos(), lastScenePos(), and screenPos().
Qt::KeyboardModifiers QGraphicsSceneHoverEvent::modifiers() const
Returns the keyboard modifiers at the moment the hover event was sent.
This function was introduced in Qt 4.4.
QPointF QGraphicsSceneHoverEvent::pos() const
Returns the position of the mouse cursor in item coordinates at the moment the hover event was sent.
参见 scenePos() and screenPos().
QPointF QGraphicsSceneHoverEvent::scenePos() const
Returns the position of the mouse cursor in scene coordinates at the moment the hover event was sent.
QPoint QGraphicsSceneHoverEvent::screenPos() const
Returns the position of the mouse cursor in screen coordinates at the moment the hover event was sent.