QTouchEvent.TouchPoint¶

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

New in version 4.6.

Synopsis¶

Functions¶

def ellipseDiameters ()
def flags ()
def id ()
def lastNormalizedPos ()
def lastPos ()
def lastScenePos ()
def lastScreenPos ()
def normalizedPos ()
def pos ()
def pressure ()
def rawScreenPositions ()
def rect ()
def rotation ()
def scenePos ()
def sceneRect ()
def screenPos ()
def screenRect ()
def setEllipseDiameters (dia)
def setFlags (flags)
def setId (id)
def setLastNormalizedPos (lastNormalizedPos)
def setLastPos (lastPos)
def setLastScenePos (lastScenePos)
def setLastScreenPos (lastScreenPos)
def setNormalizedPos (normalizedPos)
def setPos (pos)
def setPressure (pressure)
def setRawScreenPositions (positions)
def setRect (rect)
def setRotation (angle)
def setScenePos (scenePos)
def setSceneRect (sceneRect)
def setScreenPos (screenPos)
def setScreenRect (screenRect)
def setStartNormalizedPos (startNormalizedPos)
def setStartPos (startPos)
def setStartScenePos (startScenePos)
def setStartScreenPos (startScreenPos)
def setState (state)
def setUniqueId (uid)
def setVelocity (v)
def startNormalizedPos ()
def startPos ()
def startScenePos ()
def startScreenPos ()
def state ()
def swap (other)
def uniqueId ()
def velocity ()

Detailed Description¶

class PySide2.QtGui.QTouchEvent.TouchPoint(other)¶

PySide2.QtGui.QTouchEvent.TouchPoint([id=-1])

param id

int

param other

TouchPoint

Constructs a TouchPoint for use in a QTouchEvent .

PySide2.QtGui.QTouchEvent.TouchPoint.InfoFlag¶

The values of this enum describe additional information about a touch point.

Constant	Description
QTouchEvent.TouchPoint.Pen	Indicates that the contact has been made by a designated pointing device (e.g. a pen) instead of a finger.
QTouchEvent.TouchPoint.Token	Indicates that the contact has been made by a fiducial object (e.g. a knob or other token) instead of a finger.

PySide2.QtGui.QTouchEvent.TouchPoint.ellipseDiameters()¶

Return type: QSizeF

Returns the width and height of the bounding ellipse of this touch point. The return value is in logical pixels. Most touchscreens do not detect the shape of the contact point, so a null size is the most common value. In other cases the diameters may be nonzero and equal (the ellipse is approximated as a circle).

PySide2.QtGui.QTouchEvent.TouchPoint.flags()¶

Return type: InfoFlags

Returns additional information about the touch point.

See also

InfoFlags

PySide2.QtGui.QTouchEvent.TouchPoint.id()¶

Return type: int

Returns the id number of this touch point.

Do not assume that id numbers start at zero or that they are sequential. Such an assumption is often false due to the way the underlying drivers work.

PySide2.QtGui.QTouchEvent.TouchPoint.lastNormalizedPos()¶

Return type: QPointF

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()

PySide2.QtGui.QTouchEvent.TouchPoint.lastPos()¶

Return type: QPointF

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()

PySide2.QtGui.QTouchEvent.TouchPoint.lastScenePos()¶

Return type: QPointF

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()

PySide2.QtGui.QTouchEvent.TouchPoint.lastScreenPos()¶

Return type: QPointF

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

See also

screenPos() startScreenPos()

PySide2.QtGui.QTouchEvent.TouchPoint.normalizedPos()¶

Return type: QPointF

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()

PySide2.QtGui.QTouchEvent.TouchPoint.pos()¶

Return type: QPointF

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

See also

startPos() lastPos() screenPos() scenePos() normalizedPos()

PySide2.QtGui.QTouchEvent.TouchPoint.pressure()¶

Return type: qreal

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

PySide2.QtGui.QTouchEvent.TouchPoint.rawScreenPositions()¶

Return type

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 window() .

Note

Returns an empty vector if the touch device’s capabilities do not include RawPositions .

Note

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

capabilities() device() window()

PySide2.QtGui.QTouchEvent.TouchPoint.rect()¶

Return type: QRectF

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.

of the touchpoint regardless of rotation, whereas a touchpoint is more correctly modeled as an ellipse at position pos() with ellipseDiameters() which are independent of rotation() .

See also

scenePos() ellipseDiameters()

PySide2.QtGui.QTouchEvent.TouchPoint.rotation()¶

Return type: qreal

Returns the angular orientation of this touch point. The return value is in degrees, where zero (the default) indicates the finger or token is pointing upwards, a negative angle means it’s rotated to the left, and a positive angle means it’s rotated to the right. Most touchscreens do not detect rotation, so zero is the most common value.

PySide2.QtGui.QTouchEvent.TouchPoint.scenePos()¶

Return type: QPointF

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()

PySide2.QtGui.QTouchEvent.TouchPoint.sceneRect()¶

Return type: QRectF

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.

of the touchpoint regardless of rotation, whereas a touchpoint is more correctly modeled as an ellipse at position scenePos() with ellipseDiameters() which are independent of rotation() .

See also

scenePos() ellipseDiameters()

PySide2.QtGui.QTouchEvent.TouchPoint.screenPos()¶

Return type: QPointF

Returns the screen position of this touch point.

See also

startScreenPos() lastScreenPos() pos()

PySide2.QtGui.QTouchEvent.TouchPoint.screenRect()¶

Return type: QRectF

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.

touchpoint regardless of rotation, whereas a touchpoint is more correctly modeled as an ellipse at position screenPos() with ellipseDiameters() which are independent of rotation() .

See also

screenPos() ellipseDiameters()

PySide2.QtGui.QTouchEvent.TouchPoint.setEllipseDiameters(dia)¶

Parameters: dia – QSizeF

See also

ellipseDiameters()

PySide2.QtGui.QTouchEvent.TouchPoint.setFlags(flags)¶

Parameters: flags – InfoFlags

See also

flags()

PySide2.QtGui.QTouchEvent.TouchPoint.setId(id)¶

Parameters: id – int

See also

id()

PySide2.QtGui.QTouchEvent.TouchPoint.setLastNormalizedPos(lastNormalizedPos)¶

Parameters: lastNormalizedPos – QPointF

See also

lastNormalizedPos()

PySide2.QtGui.QTouchEvent.TouchPoint.setLastPos(lastPos)¶

Parameters: lastPos – QPointF

See also

lastPos()

PySide2.QtGui.QTouchEvent.TouchPoint.setLastScenePos(lastScenePos)¶

Parameters: lastScenePos – QPointF

See also

lastScenePos()

PySide2.QtGui.QTouchEvent.TouchPoint.setLastScreenPos(lastScreenPos)¶

Parameters: lastScreenPos – QPointF

See also

lastScreenPos()

PySide2.QtGui.QTouchEvent.TouchPoint.setNormalizedPos(normalizedPos)¶

Parameters: normalizedPos – QPointF

See also

normalizedPos()

PySide2.QtGui.QTouchEvent.TouchPoint.setPos(pos)¶

Parameters: pos – QPointF

See also

pos()

PySide2.QtGui.QTouchEvent.TouchPoint.setPressure(pressure)¶

Parameters: pressure – qreal

See also

pressure()

PySide2.QtGui.QTouchEvent.TouchPoint.setRawScreenPositions(positions)¶

Parameters: positions –

See also

rawScreenPositions()

PySide2.QtGui.QTouchEvent.TouchPoint.setRect(rect)¶

Parameters: rect – QRectF

See also

rect()

PySide2.QtGui.QTouchEvent.TouchPoint.setRotation(angle)¶

Parameters: angle – qreal

See also

rotation()

PySide2.QtGui.QTouchEvent.TouchPoint.setScenePos(scenePos)¶

Parameters: scenePos – QPointF

See also

scenePos()

PySide2.QtGui.QTouchEvent.TouchPoint.setSceneRect(sceneRect)¶

Parameters: sceneRect – QRectF

See also

sceneRect()

PySide2.QtGui.QTouchEvent.TouchPoint.setScreenPos(screenPos)¶

Parameters: screenPos – QPointF

See also

screenPos()

PySide2.QtGui.QTouchEvent.TouchPoint.setScreenRect(screenRect)¶

Parameters: screenRect – QRectF

See also

screenRect()

PySide2.QtGui.QTouchEvent.TouchPoint.setStartNormalizedPos(startNormalizedPos)¶

Parameters: startNormalizedPos – QPointF

See also

startNormalizedPos()

PySide2.QtGui.QTouchEvent.TouchPoint.setStartPos(startPos)¶

Parameters: startPos – QPointF

See also

startPos()

PySide2.QtGui.QTouchEvent.TouchPoint.setStartScenePos(startScenePos)¶

Parameters: startScenePos – QPointF

See also

startScenePos()

PySide2.QtGui.QTouchEvent.TouchPoint.setStartScreenPos(startScreenPos)¶

Parameters: startScreenPos – QPointF

See also

startScreenPos()

PySide2.QtGui.QTouchEvent.TouchPoint.setState(state)¶

Parameters: state – TouchPointStates

See also

state()

PySide2.QtGui.QTouchEvent.TouchPoint.setUniqueId(uid)¶

Parameters: uid – qint64

See also

uniqueId()

PySide2.QtGui.QTouchEvent.TouchPoint.setVelocity(v)¶

Parameters: v – QVector2D

See also

velocity()

PySide2.QtGui.QTouchEvent.TouchPoint.startNormalizedPos()¶

Return type: QPointF

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()

PySide2.QtGui.QTouchEvent.TouchPoint.startPos()¶

Return type: QPointF

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

See also

pos() lastPos()

PySide2.QtGui.QTouchEvent.TouchPoint.startScenePos()¶

Return type: QPointF

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()

PySide2.QtGui.QTouchEvent.TouchPoint.startScreenPos()¶

Return type: QPointF

Returns the starting screen position of this touch point.

See also

screenPos() lastScreenPos()

PySide2.QtGui.QTouchEvent.TouchPoint.state()¶

Return type: TouchPointState

Returns the current state of this touch point.

PySide2.QtGui.QTouchEvent.TouchPoint.swap(other)¶

Parameters: other – TouchPoint

PySide2.QtGui.QTouchEvent.TouchPoint.uniqueId()¶

Return type: QPointingDeviceUniqueId

Returns the unique ID of this touch point or token, if any.

It is normally invalid (see isValid() ), because touchscreens cannot uniquely identify fingers. But when the Token flag is set, it is expected to uniquely identify a specific token (fiducial object).

See also

flags

PySide2.QtGui.QTouchEvent.TouchPoint.velocity()¶

Return type: QVector2D

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 Velocity .

See also

capabilities() device()

Qt Documentation

Table of Contents

QTouchEvent.TouchPoint¶

Synopsis¶

Functions¶

Detailed Description¶