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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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QQuickTouchPoint Class Reference

#include <qquickmultipointtoucharea_p.h>

+ Inheritance diagram for QQuickTouchPoint:
+ Collaboration diagram for QQuickTouchPoint:

Signals

void pressedChanged ()
 
void pointIdChanged ()
 
 Q_REVISION (2, 9) void uniqueIdChanged()
 
void xChanged ()
 
void yChanged ()
 
 Q_REVISION (2, 9) void ellipseDiametersChanged()
 
void pressureChanged ()
 
 Q_REVISION (2, 9) void rotationChanged()
 
void velocityChanged ()
 
void areaChanged ()
 
void startXChanged ()
 
void startYChanged ()
 
void previousXChanged ()
 
void previousYChanged ()
 
void sceneXChanged ()
 
void sceneYChanged ()
 
- Signals inherited from QObject
void destroyed (QObject *=nullptr)
 This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
 
void objectNameChanged (const QString &objectName, QPrivateSignal)
 This signal is emitted after the object's name has been changed.
 

Public Member Functions

 QQuickTouchPoint (bool qmlDefined=true)
 
int pointId () const
 
void setPointId (int id)
 \qmltype TouchPoint \instantiates QQuickTouchPoint \inqmlmodule QtQuick
 
QPointingDeviceUniqueId uniqueId () const
 
void setUniqueId (const QPointingDeviceUniqueId &id)
 \qmlproperty pointingDeviceUniqueId QtQuick::TouchPoint::uniqueId
 
qreal x () const
 
qreal y () const
 
void setPosition (QPointF pos)
 \qmlproperty real QtQuick::TouchPoint::x \qmlproperty real QtQuick::TouchPoint::y
 
QSizeF ellipseDiameters () const
 
void setEllipseDiameters (const QSizeF &d)
 \qmlproperty size QtQuick::TouchPoint::ellipseDiameters
 
qreal pressure () const
 
void setPressure (qreal pressure)
 \qmlproperty real QtQuick::TouchPoint::pressure \qmlproperty vector2d QtQuick::TouchPoint::velocity
 
qreal rotation () const
 
void setRotation (qreal r)
 \qmlproperty real QtQuick::TouchPoint::rotation
 
QVector2D velocity () const
 
void setVelocity (const QVector2D &velocity)
 
QRectF area () const
 
void setArea (const QRectF &area)
 
bool isQmlDefined () const
 
bool inUse () const
 
void setInUse (bool inUse)
 
bool pressed () const
 
void setPressed (bool pressed)
 \qmlproperty bool QtQuick::TouchPoint::pressed
 
qreal startX () const
 
void setStartX (qreal startX)
 \qmlproperty real QtQuick::TouchPoint::startX \qmlproperty real QtQuick::TouchPoint::startY
 
qreal startY () const
 
void setStartY (qreal startY)
 
qreal previousX () const
 
void setPreviousX (qreal previousX)
 \qmlproperty real QtQuick::TouchPoint::previousX \qmlproperty real QtQuick::TouchPoint::previousY
 
qreal previousY () const
 
void setPreviousY (qreal previousY)
 
qreal sceneX () const
 
void setSceneX (qreal sceneX)
 \qmlproperty real QtQuick::TouchPoint::sceneX \qmlproperty real QtQuick::TouchPoint::sceneY
 
qreal sceneY () const
 
void setSceneY (qreal sceneY)
 
- Public Member Functions inherited from QObject
Q_INVOKABLE QObject (QObject *parent=nullptr)
 Constructs an object with parent object parent.
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects.
 
virtual bool event (QEvent *event)
 This virtual function receives events to an object and should return true if the event e was recognized and processed.
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 Filters events if this object has been installed as an event filter for the watched object.
 
QString objectName () const
 
Q_WEAK_OVERLOAD void setObjectName (const QString &name)
 Sets the object's name to name.
 
void setObjectName (QAnyStringView name)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
QBindable< QStringbindableObjectName ()
 
bool isWidgetType () const
 Returns true if the object is a widget; otherwise returns false.
 
bool isWindowType () const
 Returns true if the object is a window; otherwise returns false.
 
bool isQuickItemType () const
 Returns true if the object is a QQuickItem; otherwise returns false.
 
bool signalsBlocked () const noexcept
 Returns true if signals are blocked; otherwise returns false.
 
bool blockSignals (bool b) noexcept
 If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
 
QThreadthread () const
 Returns the thread in which the object lives.
 
bool moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
 Changes the thread affinity for this object and its children and returns true on success.
 
int startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
 This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
 
int startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)
 
void killTimer (int id)
 Kills the timer with timer identifier, id.
 
void killTimer (Qt::TimerId id)
 
template<typename T >
findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
 
template<typename T >
QList< T > findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.
 
template<typename T >
findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
template<typename T >
QList< T > findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
const QObjectListchildren () const
 Returns a list of child objects.
 
void setParent (QObject *parent)
 Makes the object a child of parent.
 
void installEventFilter (QObject *filterObj)
 Installs an event filter filterObj on this object.
 
void removeEventFilter (QObject *obj)
 Removes an event filter object obj from this object.
 
QMetaObject::Connection connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
 
bool disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const
 
bool disconnect (const QObject *receiver, const char *member=nullptr) const
 
void dumpObjectTree () const
 Dumps a tree of children to the debug output.
 
void dumpObjectInfo () const
 Dumps information about signal connections, etc.
 
bool setProperty (const char *name, const QVariant &value)
 Sets the value of the object's name property to value.
 
bool setProperty (const char *name, QVariant &&value)
 
QVariant property (const char *name) const
 Returns the value of the object's name property.
 
QList< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () const
 Returns a pointer to the parent object.
 
bool inherits (const char *classname) const
 Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.
 

Properties

int pointId
 
QPointingDeviceUniqueId uniqueId
 
bool pressed
 
qreal x
 
qreal y
 
QSizeF ellipseDiameters
 
qreal pressure
 
qreal rotation
 
QVector2D velocity
 
QRectF area
 
qreal startX
 
qreal startY
 
qreal previousX
 
qreal previousY
 
qreal sceneX
 
qreal sceneY
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Friends

class QQuickMultiPointTouchArea
 

Additional Inherited Members

- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 
- Static Public Member Functions inherited from QObject
static QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 \threadsafe
 
static QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 \threadsafe
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static bool disconnect (const QMetaObject::Connection &)
 Disconnect a connection.
 
template<typename Func1 , typename Func2 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot)
 
template<typename Func1 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero)
 
- Protected Member Functions inherited from QObject
QObjectsender () const
 Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.
 
int senderSignalIndex () const
 
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal.
 
bool isSignalConnected (const QMetaMethod &signal) const
 
virtual void timerEvent (QTimerEvent *event)
 This event handler can be reimplemented in a subclass to receive timer events for the object.
 
virtual void childEvent (QChildEvent *event)
 This event handler can be reimplemented in a subclass to receive child events.
 
virtual void customEvent (QEvent *event)
 This event handler can be reimplemented in a subclass to receive custom events.
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
 QObject (QObjectPrivate &dd, QObject *parent=nullptr)
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 

Detailed Description

Definition at line 33 of file qquickmultipointtoucharea_p.h.

Constructor & Destructor Documentation

◆ QQuickTouchPoint()

QQuickTouchPoint::QQuickTouchPoint ( bool qmlDefined = true)
inline

Definition at line 57 of file qquickmultipointtoucharea_p.h.

Member Function Documentation

◆ area()

QRectF QQuickTouchPoint::area ( ) const
inline

Definition at line 83 of file qquickmultipointtoucharea_p.h.

◆ areaChanged

void QQuickTouchPoint::areaChanged ( )
signal

Referenced by setArea().

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◆ ellipseDiameters()

QSizeF QQuickTouchPoint::ellipseDiameters ( ) const
inline

Definition at line 71 of file qquickmultipointtoucharea_p.h.

◆ inUse()

bool QQuickTouchPoint::inUse ( ) const
inline

Definition at line 88 of file qquickmultipointtoucharea_p.h.

◆ isQmlDefined()

bool QQuickTouchPoint::isQmlDefined ( ) const
inline

Definition at line 86 of file qquickmultipointtoucharea_p.h.

◆ pointId()

int QQuickTouchPoint::pointId ( ) const
inline

Definition at line 61 of file qquickmultipointtoucharea_p.h.

◆ pointIdChanged

void QQuickTouchPoint::pointIdChanged ( )
signal

◆ pressed()

bool QQuickTouchPoint::pressed ( ) const
inline

Definition at line 91 of file qquickmultipointtoucharea_p.h.

◆ pressedChanged

void QQuickTouchPoint::pressedChanged ( )
signal

Referenced by setPressed().

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◆ pressure()

qreal QQuickTouchPoint::pressure ( ) const
inline

Definition at line 74 of file qquickmultipointtoucharea_p.h.

◆ pressureChanged

void QQuickTouchPoint::pressureChanged ( )
signal

Referenced by setPressure().

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◆ previousX()

qreal QQuickTouchPoint::previousX ( ) const
inline

Definition at line 100 of file qquickmultipointtoucharea_p.h.

◆ previousXChanged

void QQuickTouchPoint::previousXChanged ( )
signal

Referenced by setPreviousX().

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◆ previousY()

qreal QQuickTouchPoint::previousY ( ) const
inline

Definition at line 103 of file qquickmultipointtoucharea_p.h.

◆ previousYChanged

void QQuickTouchPoint::previousYChanged ( )
signal

Referenced by setPreviousY().

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◆ Q_REVISION [1/3]

QQuickTouchPoint::Q_REVISION ( 2 ,
9  )
signal

◆ Q_REVISION [2/3]

QQuickTouchPoint::Q_REVISION ( 2 ,
9  )
signal

◆ Q_REVISION [3/3]

QQuickTouchPoint::Q_REVISION ( 2 ,
9  )
signal

◆ rotation()

qreal QQuickTouchPoint::rotation ( ) const
inline

Definition at line 77 of file qquickmultipointtoucharea_p.h.

◆ sceneX()

qreal QQuickTouchPoint::sceneX ( ) const
inline

Definition at line 106 of file qquickmultipointtoucharea_p.h.

◆ sceneXChanged

void QQuickTouchPoint::sceneXChanged ( )
signal

Referenced by setSceneX().

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◆ sceneY()

qreal QQuickTouchPoint::sceneY ( ) const
inline

Definition at line 109 of file qquickmultipointtoucharea_p.h.

◆ sceneYChanged

void QQuickTouchPoint::sceneYChanged ( )
signal

Referenced by setSceneY().

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◆ setArea()

void QQuickTouchPoint::setArea ( const QRectF & area)
Deprecated
\qmlproperty rectangle QtQuick::TouchPoint::area

A rectangle covering the area of the touch point, centered on the current position of the touch point.

It is deprecated because a touch point is more correctly modeled as an ellipse, whereas this rectangle represents the outer bounds of the ellipse after \l rotation.

Definition at line 146 of file qquickmultipointtoucharea.cpp.

References area, areaChanged(), and emit.

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◆ setEllipseDiameters()

void QQuickTouchPoint::setEllipseDiameters ( const QSizeF & d)

\qmlproperty size QtQuick::TouchPoint::ellipseDiameters

Since
5.9

This property holds the major and minor axes of the ellipse representing the covered area of the touch point.

Definition at line 78 of file qquickmultipointtoucharea.cpp.

References d, and emit.

◆ setInUse()

void QQuickTouchPoint::setInUse ( bool inUse)
inline

Definition at line 89 of file qquickmultipointtoucharea_p.h.

Referenced by QQuickMultiPointTouchArea::addTouchPoint(), QQuickMultiPointTouchArea::addTouchPoint(), and QQuickMultiPointTouchArea::mouseReleaseEvent().

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◆ setPointId()

QT_BEGIN_NAMESPACE void QQuickTouchPoint::setPointId ( int id)

\qmltype TouchPoint \instantiates QQuickTouchPoint \inqmlmodule QtQuick

Describes a touch point in a MultiPointTouchArea.

The TouchPoint type contains information about a touch point, such as the current position, pressure, and area.

\qmlproperty int QtQuick::TouchPoint::pointId

This property holds the point id of the touch point.

Each touch point within a MultiPointTouchArea will have a unique id.

Definition at line 42 of file qquickmultipointtoucharea.cpp.

References emit.

Referenced by QQuickMultiPointTouchArea::addTouchPrototype().

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◆ setPosition()

void QQuickTouchPoint::setPosition ( QPointF p)

\qmlproperty real QtQuick::TouchPoint::x \qmlproperty real QtQuick::TouchPoint::y

These properties hold the current position of the touch point.

Definition at line 57 of file qquickmultipointtoucharea.cpp.

References emit, xChanged(), and yChanged().

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◆ setPressed()

void QQuickTouchPoint::setPressed ( bool pressed)

\qmlproperty bool QtQuick::TouchPoint::pressed

This property holds whether the touch point is currently pressed.

Definition at line 159 of file qquickmultipointtoucharea.cpp.

References emit, pressed, and pressedChanged().

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◆ setPressure()

void QQuickTouchPoint::setPressure ( qreal pressure)

\qmlproperty real QtQuick::TouchPoint::pressure \qmlproperty vector2d QtQuick::TouchPoint::velocity

These properties hold additional information about the current state of the touch point.

\list

  • pressure is a value in the range of 0.0 to 1.0.
  • velocity is a vector with magnitude reported in pixels per second. \endlist

Not all touch devices support velocity. If velocity is not supported, it will be reported as 0,0.

Definition at line 100 of file qquickmultipointtoucharea.cpp.

References emit, pressure, and pressureChanged().

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◆ setPreviousX()

void QQuickTouchPoint::setPreviousX ( qreal previousX)

\qmlproperty real QtQuick::TouchPoint::previousX \qmlproperty real QtQuick::TouchPoint::previousY

These properties hold the previous position of the touch point.

Definition at line 196 of file qquickmultipointtoucharea.cpp.

References emit, previousX, and previousXChanged().

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◆ setPreviousY()

void QQuickTouchPoint::setPreviousY ( qreal previousY)

Definition at line 204 of file qquickmultipointtoucharea.cpp.

References emit, previousY, and previousYChanged().

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◆ setRotation()

void QQuickTouchPoint::setRotation ( qreal r)

\qmlproperty real QtQuick::TouchPoint::rotation

Since
5.9

This property holds 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.

See also
QEventPoint::rotation()

Definition at line 120 of file qquickmultipointtoucharea.cpp.

References emit.

◆ setSceneX()

void QQuickTouchPoint::setSceneX ( qreal sceneX)

\qmlproperty real QtQuick::TouchPoint::sceneX \qmlproperty real QtQuick::TouchPoint::sceneY

These properties hold the current position of the touch point in scene coordinates.

Definition at line 219 of file qquickmultipointtoucharea.cpp.

References emit, sceneX, and sceneXChanged().

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◆ setSceneY()

void QQuickTouchPoint::setSceneY ( qreal sceneY)

Definition at line 227 of file qquickmultipointtoucharea.cpp.

References emit, sceneY, and sceneYChanged().

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◆ setStartX()

void QQuickTouchPoint::setStartX ( qreal startX)

\qmlproperty real QtQuick::TouchPoint::startX \qmlproperty real QtQuick::TouchPoint::startY

These properties hold the starting position of the touch point.

Definition at line 174 of file qquickmultipointtoucharea.cpp.

References emit, startX, and startXChanged().

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◆ setStartY()

void QQuickTouchPoint::setStartY ( qreal startY)

Definition at line 182 of file qquickmultipointtoucharea.cpp.

References emit, startY, and startYChanged().

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◆ setUniqueId()

void QQuickTouchPoint::setUniqueId ( const QPointingDeviceUniqueId & id)

\qmlproperty pointingDeviceUniqueId QtQuick::TouchPoint::uniqueId

Since
5.9

This property holds the unique ID of the touch point or token.

It is normally empty, because touchscreens cannot uniquely identify fingers. But when it is set, it is expected to uniquely identify a specific token (fiducial object).

Interpreting the contents of this ID requires knowledge of the hardware and drivers in use (e.g. various TUIO-based touch surfaces).

Definition at line 248 of file qquickmultipointtoucharea.cpp.

References emit.

◆ setVelocity()

void QQuickTouchPoint::setVelocity ( const QVector2D & velocity)

Definition at line 128 of file qquickmultipointtoucharea.cpp.

References emit, velocity, and velocityChanged().

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◆ startX()

qreal QQuickTouchPoint::startX ( ) const
inline

Definition at line 94 of file qquickmultipointtoucharea_p.h.

◆ startXChanged

void QQuickTouchPoint::startXChanged ( )
signal

Referenced by setStartX().

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◆ startY()

qreal QQuickTouchPoint::startY ( ) const
inline

Definition at line 97 of file qquickmultipointtoucharea_p.h.

◆ startYChanged

void QQuickTouchPoint::startYChanged ( )
signal

Referenced by setStartY().

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◆ uniqueId()

QPointingDeviceUniqueId QQuickTouchPoint::uniqueId ( ) const
inline

Definition at line 64 of file qquickmultipointtoucharea_p.h.

◆ velocity()

QVector2D QQuickTouchPoint::velocity ( ) const
inline

Definition at line 80 of file qquickmultipointtoucharea_p.h.

◆ velocityChanged

void QQuickTouchPoint::velocityChanged ( )
signal

Referenced by setVelocity().

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◆ x()

qreal QQuickTouchPoint::x ( ) const
inline

Definition at line 67 of file qquickmultipointtoucharea_p.h.

◆ xChanged

void QQuickTouchPoint::xChanged ( )
signal

Referenced by setPosition().

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◆ y()

qreal QQuickTouchPoint::y ( ) const
inline

Definition at line 68 of file qquickmultipointtoucharea_p.h.

◆ yChanged

void QQuickTouchPoint::yChanged ( )
signal

Referenced by setPosition().

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Friends And Related Symbol Documentation

◆ QQuickMultiPointTouchArea

friend class QQuickMultiPointTouchArea
friend

Definition at line 131 of file qquickmultipointtoucharea_p.h.

Property Documentation

◆ area

QRectF QQuickTouchPoint::area
read

Definition at line 45 of file qquickmultipointtoucharea_p.h.

Referenced by setArea().

◆ ellipseDiameters

QSizeF QQuickTouchPoint::ellipseDiameters
read

Definition at line 41 of file qquickmultipointtoucharea_p.h.

◆ pointId

int QQuickTouchPoint::pointId
read

Definition at line 36 of file qquickmultipointtoucharea_p.h.

◆ pressed

bool QQuickTouchPoint::pressed
read

Definition at line 38 of file qquickmultipointtoucharea_p.h.

Referenced by setPressed().

◆ pressure

qreal QQuickTouchPoint::pressure
read

Definition at line 42 of file qquickmultipointtoucharea_p.h.

Referenced by setPressure().

◆ previousX

qreal QQuickTouchPoint::previousX
read

Definition at line 49 of file qquickmultipointtoucharea_p.h.

Referenced by setPreviousX().

◆ previousY

qreal QQuickTouchPoint::previousY
read

Definition at line 50 of file qquickmultipointtoucharea_p.h.

Referenced by setPreviousY().

◆ rotation

qreal QQuickTouchPoint::rotation
read

Definition at line 43 of file qquickmultipointtoucharea_p.h.

◆ sceneX

qreal QQuickTouchPoint::sceneX
read

Definition at line 51 of file qquickmultipointtoucharea_p.h.

Referenced by setSceneX().

◆ sceneY

qreal QQuickTouchPoint::sceneY
read

Definition at line 52 of file qquickmultipointtoucharea_p.h.

Referenced by setSceneY().

◆ startX

qreal QQuickTouchPoint::startX
read

Definition at line 47 of file qquickmultipointtoucharea_p.h.

Referenced by setStartX().

◆ startY

qreal QQuickTouchPoint::startY
read

Definition at line 48 of file qquickmultipointtoucharea_p.h.

Referenced by setStartY().

◆ uniqueId

QPointingDeviceUniqueId QQuickTouchPoint::uniqueId
read

Definition at line 37 of file qquickmultipointtoucharea_p.h.

◆ velocity

QVector2D QQuickTouchPoint::velocity
read

Definition at line 44 of file qquickmultipointtoucharea_p.h.

Referenced by setVelocity().

◆ x

qreal QQuickTouchPoint::x
read

Definition at line 39 of file qquickmultipointtoucharea_p.h.

◆ y

qreal QQuickTouchPoint::y
read

Definition at line 40 of file qquickmultipointtoucharea_p.h.


The documentation for this class was generated from the following files: