QGraphicsSceneMoveEvent Class
The QGraphicsSceneMoveEvent class provides events for widget moving in the graphics view framework. 更多...
| 头文件: | #include <QGraphicsSceneMoveEvent> |
| qmake: | QT += widgets |
| 开始支持版本: | Qt 4.4 |
| 基类: | QGraphicsSceneEvent |
公有函数
| QGraphicsSceneMoveEvent() | |
| ~QGraphicsSceneMoveEvent() | |
| QPointF | newPos() const |
| QPointF | oldPos() 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 QGraphicsSceneMoveEvent class provides events for widget moving in the graphics view framework.
A QGraphicsWidget sends itself a QGraphicsSceneMoveEvent immediately when its local position changes. The delivery is implemented as part of QGraphicsItem::itemChange().
It's similar to QMoveEvent, but its positions, oldPos() and newPos(), use QPointF instead of QPoint.
参见 QGraphicsItem::setPos(), QGraphicsItem::ItemPositionChange, and QGraphicsItem::ItemPositionHasChanged.
成员函数
QGraphicsSceneMoveEvent::QGraphicsSceneMoveEvent()
Constructs a QGraphicsSceneMoveEvent.
QGraphicsSceneMoveEvent::~QGraphicsSceneMoveEvent()
Destroys the QGraphicsSceneMoveEvent.
QPointF QGraphicsSceneMoveEvent::newPos() const
Returns the new position (i.e., the current position).
参见 oldPos() and QGraphicsItem::setPos().
QPointF QGraphicsSceneMoveEvent::oldPos() const
Returns the old position (i.e., the position immediately before the widget was moved).
参见 newPos() and QGraphicsItem::setPos().