CopperSpice API  1.7.2
QTouchEvent::TouchPoint Class Reference

The TouchPoint class provides information about a touch point in a QTouchEvent. More...

Public Methods

 TouchPoint (const QTouchEvent::TouchPoint &other)
 
 TouchPoint (TouchPoint &&other)
 
InfoFlags flags () const
 
int id () const
 
QPointF lastNormalizedPos () const
 
QPointF lastPos () const
 
QPointF lastScenePos () const
 
QPointF lastScreenPos () const
 
QPointF normalizedPos () const
 
QTouchEvent::TouchPoint & operator= (const QTouchEvent::TouchPoint &other)
 
TouchPoint & operator= (TouchPoint &&other)
 
QPointF pos () const
 
qreal pressure () const
 
QVector< QPointFrawScreenPositions () 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
 
void swap (TouchPoint &other)
 
QVector2D velocity () const
 

Friends

class QApplication
 

Detailed Description

The TouchPoint class provides information about a touch point in a QTouchEvent.

See also
normalizedPos(), startNormalizedPos()

Constructor & Destructor Documentation

QTouchEvent::TouchPoint::TouchPoint ( const QTouchEvent::TouchPoint &  other)

Copy constructs a new QTouchEvent::TouchPoint from other.

QTouchEvent::TouchPoint::TouchPoint ( TouchPoint &&  other)
inline

Move constructs a new QTouchEvent from other.

Method Documentation

InfoFlags QTouchEvent::TouchPoint::flags ( ) const

Returns additional information about the touch point.

See also
QTouchEvent::TouchPoint::InfoFlags
int QTouchEvent::TouchPoint::id ( ) const

Returns the id number of this touch point.

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.

QPointF QTouchEvent::TouchPoint::lastNormalizedPos ( ) const

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.

See also
normalizedPos(), startNormalizedPos()
QPointF QTouchEvent::TouchPoint::lastPos ( ) const

Returns the position of this touch point from the previous touch event, relative to the widget or QGraphicsItem that received the event.

See also
pos(), startPos()
QPointF QTouchEvent::TouchPoint::lastScenePos ( ) const

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.

See also
scenePos(), startScenePos()
QPointF QTouchEvent::TouchPoint::lastScreenPos ( ) const

Returns the screen position of this touch point from the previous touch event.

See also
screenPos(), startScreenPos()
QPointF QTouchEvent::TouchPoint::normalizedPos ( ) const

Returns the normalized 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.

See also
startNormalizedPos(), lastNormalizedPos(), pos()
QTouchEvent::TouchPoint & QTouchEvent::TouchPoint::operator= ( const QTouchEvent::TouchPoint &  other)
inline

Copy assigns from other and returns a reference to this object.

TouchPoint & QTouchEvent::TouchPoint::operator= ( TouchPoint &&  other)
inline

Move assigns from other and returns a reference to this object.

QPointF QTouchEvent::TouchPoint::pos ( ) const

Returns the position of this touch point, relative to the widget or QGraphicsItem that received the event.

See also
startPos(), lastPos(), screenPos(), scenePos(), normalizedPos()
qreal QTouchEvent::TouchPoint::pressure ( ) const

Returns the pressure of this touch point. The return value is in the range 0.0 to 1.0.

QVector< QPointF > QTouchEvent::TouchPoint::rawScreenPositions ( ) const

Returns the raw, unfiltered positions for the touch point. The positions are in native screen coordinates. To get local coordinates you can use mapFromGlobal() of the QWindow returned by QTouchEvent::window().

Note
Returns an empty vector if the touch device's capabilities do not include QTouchDevice::RawPositions.
Native screen coordinates refer to the native orientation of the screen which, in case of mobile devices, is typically portrait. This means that on systems capable of screen orientation changes the positions in this list will not reflect the current orientation (unlike pos(), screenPos(), etc.) and will always be reported in the native orientation.
See also
QTouchDevice::capabilities(), device(), window()
QRectF QTouchEvent::TouchPoint::rect ( ) const

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().

Note
This function returns an empty rect if the device does not report touch point sizes.
QPointF QTouchEvent::TouchPoint::scenePos ( ) const

Returns the 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.

See also
startScenePos(), lastScenePos(), pos()
QRectF QTouchEvent::TouchPoint::sceneRect ( ) const

Returns the rect for this touch point in scene coordinates.

Note
This function returns an empty rect if the device does not report touch point sizes.
See also
scenePos(), rect()
QPointF QTouchEvent::TouchPoint::screenPos ( ) const

Returns the screen position of this touch point.

See also
startScreenPos(), lastScreenPos(), pos()
QRectF QTouchEvent::TouchPoint::screenRect ( ) const

Returns the rect for this touch point in screen coordinates.

Note
This function returns an empty rect if the device does not report touch point sizes.
See also
screenPos(), rect()
QPointF QTouchEvent::TouchPoint::startNormalizedPos ( ) const

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.

See also
normalizedPos(), lastNormalizedPos()
QPointF QTouchEvent::TouchPoint::startPos ( ) const

Returns the starting position of this touch point, relative to the widget or QGraphicsItem that received the event.

See also
pos(), lastPos()
QPointF QTouchEvent::TouchPoint::startScenePos ( ) const

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.

See also
scenePos(), lastScenePos()
QPointF QTouchEvent::TouchPoint::startScreenPos ( ) const

Returns the starting screen position of this touch point.

See also
screenPos(), lastScreenPos()
Qt::TouchPointState QTouchEvent::TouchPoint::state ( ) const

Returns the current state of this touch point.

void QTouchEvent::TouchPoint::swap ( TouchPoint &  other)
inline

Swaps the touch point event other with this touch point event. This operation is very fast and never fails.

QVector2D QTouchEvent::TouchPoint::velocity ( ) const

Returns a velocity vector for this touch point. The vector is in the screen's coordinate system, using pixels per seconds for the magnitude.

Note
The returned vector is only valid if the touch device's capabilities include QTouchDevice::Velocity.
See also
QTouchDevice::capabilities(), device()