The TouchPoint 类提供的信息有关触摸点在 QTouchEvent . 更多...
| 头： | #include <TouchPoint> |
| Since: | Qt 4.6 |
| int | id () const |
| bool | isPrimary () const |
| QPointF | lastNormalizedPos () const |
| QPointF | lastPos () const |
| QPointF | lastScenePos () const |
| QPointF | lastScreenPos () const |
| QPointF | normalizedPos () const |
| QPointF | pos () const |
| qreal | pressure () const |
| QRectF | rect () const |
| QPointF | scenePos () const |
| QRectF | sceneRect () const |
| QPointF | screenPos () const |
| QRectF | screenRect () const |
| QPointF | startNormalizedPos () const |
| QPointF | startPos () const |
| QPointF | startScenePos () const |
| QPointF | startScreenPos () const |
| Qt::TouchPointState | state () const |
The TouchPoint 类提供的信息有关触摸点在 QTouchEvent .
返回此触摸点的 ID 号。
Id numbers are globally sequential, starting at zero, meaning the first touch point in the application has id 0, the second has id 1, and so on.
Returns true if this touch point is the primary touch point. The primary touch point is the point for which the windowing system generates mouse events.
Returns the normalized position of this touch point from the previous touch event.
The coordinates are normalized to the size of the touch device, i.e. (0,0) is the top-left corner and (1,1) is the bottom-right corner.
另请参阅 normalizedPos () 和 startNormalizedPos ().
Returns the position of this touch point from the previous touch event, relative to the widget or QGraphicsItem that received the event.
Returns the scene position of this touch point from the previous touch event.
The scene position is the position in QGraphicsScene coordinates if the QTouchEvent is handled by a QGraphicsItem::touchEvent() reimplementation, and identical to the screen position for widgets.
另请参阅 scenePos () 和 startScenePos ().
Returns the screen position of this touch point from the previous touch event.
另请参阅 screenPos () 和 startScreenPos ().
返回此触摸点的规范化位置。
The coordinates are normalized to the size of the touch device, i.e. (0,0) is the top-left corner and (1,1) is the bottom-right corner.
另请参阅 startNormalizedPos (), lastNormalizedPos ()，和 pos ().
Returns the position of this touch point, relative to the widget or QGraphicsItem that received the event.
另请参阅 startPos (), lastPos (), screenPos (), scenePos ()，和 normalizedPos ().
Returns the pressure of this touch point. The return value is in the range 0.0 to 1.0.
Returns the rect for this touch point, relative to the widget or QGraphicsItem that received the event. The rect is centered around the point returned by pos ().
注意： This function returns an empty rect if the device does not report touch point sizes.
返回此触摸点的场景位置。
The scene position is the position in QGraphicsScene coordinates if the QTouchEvent is handled by a QGraphicsItem::touchEvent() reimplementation, and identical to the screen position for widgets.
另请参阅 startScenePos (), lastScenePos ()，和 pos ().
Returns the rect for this touch point in scene coordinates.
注意： This function returns an empty rect if the device does not report touch point sizes.
Returns the screen position of this touch point.
另请参阅 startScreenPos (), lastScreenPos ()，和 pos ().
Returns the rect for this touch point in screen coordinates.
注意： This function returns an empty rect if the device does not report touch point sizes.
Returns the normalized starting position of this touch point.
The coordinates are normalized to the size of the touch device, i.e. (0,0) is the top-left corner and (1,1) is the bottom-right corner.
另请参阅 normalizedPos () 和 lastNormalizedPos ().
Returns the starting position of this touch point, relative to the widget or QGraphicsItem that received the event.
Returns the starting scene position of this touch point.
The scene position is the position in QGraphicsScene coordinates if the QTouchEvent is handled by a QGraphicsItem::touchEvent() reimplementation, and identical to the screen position for widgets.
另请参阅 scenePos () 和 lastScenePos ().
Returns the starting screen position of this touch point.
另请参阅 screenPos () 和 lastScreenPos ().
Returns the current state of this touch point.
