KWayland::Client::PointerPinchGesture

KWayland::Client::PointerPinchGesture Class Reference

#include <pointergestures.h>

Inheritance diagram for KWayland::Client::PointerPinchGesture:

Signals

void cancelled (quint32 serial, quint32 time)
 
void ended (quint32 serial, quint32 time)
 
void started (quint32 serial, quint32 time)
 
void updated (const QSizeF &delta, qreal scale, qreal rotation, quint32 time)
 

Public Member Functions

void destroy ()
 
quint32 fingerCount () const
 
bool isValid () const
 
 operator zwp_pointer_gesture_pinch_v1 * ()
 
 operator zwp_pointer_gesture_pinch_v1 * () const
 
void release ()
 
void setup (zwp_pointer_gesture_pinch_v1 *pointerpinchgesture)
 
QPointer< Surfacesurface () const
 
- Public Member Functions inherited from QObject
 QObject (QObject *parent)
 
bool blockSignals (bool block)
 
const QObjectListchildren () const const
 
QMetaObject::Connection connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
 
void deleteLater ()
 
void destroyed (QObject *obj)
 
bool disconnect (const char *signal, const QObject *receiver, const char *method) const const
 
bool disconnect (const QObject *receiver, const char *method) const const
 
void dumpObjectInfo ()
 
void dumpObjectInfo () const const
 
void dumpObjectTree ()
 
void dumpObjectTree () const const
 
QList< QByteArraydynamicPropertyNames () const const
 
virtual bool event (QEvent *e)
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 
findChild (const QString &name, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QString &name, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
 
bool inherits (const char *className) const const
 
void installEventFilter (QObject *filterObj)
 
bool isWidgetType () const const
 
bool isWindowType () const const
 
void killTimer (int id)
 
virtual const QMetaObjectmetaObject () const const
 
void moveToThread (QThread *targetThread)
 
QString objectName () const const
 
void objectNameChanged (const QString &objectName)
 
QObjectparent () const const
 
QVariant property (const char *name) const const
 
 Q_CLASSINFO (Name, Value)
 
 Q_DISABLE_COPY (Class)
 
 Q_DISABLE_COPY_MOVE (Class)
 
 Q_DISABLE_MOVE (Class)
 
 Q_EMIT Q_EMIT
 
 Q_ENUM (...)
 
 Q_ENUM_NS (...)
 
 Q_ENUMS (...)
 
 Q_FLAG (...)
 
 Q_FLAG_NS (...)
 
 Q_FLAGS (...)
 
 Q_GADGET Q_GADGET
 
 Q_INTERFACES (...)
 
 Q_INVOKABLE Q_INVOKABLE
 
 Q_NAMESPACE Q_NAMESPACE
 
 Q_NAMESPACE_EXPORT (EXPORT_MACRO)
 
 Q_OBJECT Q_OBJECT
 
 Q_PROPERTY (...)
 
 Q_REVISION Q_REVISION
 
 Q_SET_OBJECT_NAME (Object)
 
 Q_SIGNAL Q_SIGNAL
 
 Q_SIGNALS Q_SIGNALS
 
 Q_SLOT Q_SLOT
 
 Q_SLOTS Q_SLOTS
 
qFindChild (const QObject *obj, const QString &name)
 
QList< T > qFindChildren (const QObject *obj, const QRegExp &regExp)
 
QList< T > qFindChildren (const QObject *obj, const QString &name)
 
qobject_cast (QObject *object)
 
qobject_cast (const QObject *object)
 
 QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
 
void removeEventFilter (QObject *obj)
 
void setObjectName (const QString &name)
 
void setParent (QObject *parent)
 
bool setProperty (const char *name, const QVariant &value)
 
bool signalsBlocked () const const
 
int startTimer (int interval, Qt::TimerType timerType)
 
int startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
 
QThreadthread () const const
 

Additional Inherited Members

- Properties inherited from QObject
 objectName
 
- Static Public Member Functions inherited from QObject
QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
 
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
 
bool disconnect (const QMetaObject::Connection &connection)
 
bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
 
bool disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
 
bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
 
QString tr (const char *sourceText, const char *disambiguation, int n)
 
QString trUtf8 (const char *sourceText, const char *disambiguation, int n)
 
- Public Attributes inherited from QObject
typedef QObjectList
 
- Protected Member Functions inherited from QObject
virtual void childEvent (QChildEvent *event)
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void customEvent (QEvent *event)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
bool isSignalConnected (const QMetaMethod &signal) const const
 
int receivers (const char *signal) const const
 
QObjectsender () const const
 
int senderSignalIndex () const const
 
virtual void timerEvent (QTimerEvent *event)
 

Detailed Description

This class is a wrapper for the zwp_pointer_gesture_pinch_v1 protocol.

A PointerPinchGesture object notifies a client about a multi-finger pinch gesture detected on an indirect input device such as a touchpad. The gesture is usually initiated by multiple fingers moving towards each other or away from each other, or by two or more fingers rotating around a logical center of gravity. The precise conditions of when such a gesture is detected are implementation-dependent.

A gesture consists of three stages: begin, update (optional) and end. There cannot be multiple simultaneous pinch or swipe gestures on the same pointer/seat, how compositors prevent these situations is implementation-dependent.

A gesture may be cancelled by the compositor or the hardware. Clients should not consider performing permanent or irreversible actions until the end of a gesture has been received.

See also
PointerGestures
PointerSwipeGesture
Since
5.29

Definition at line 290 of file pointergestures.h.

Member Function Documentation

void KWayland::Client::PointerPinchGesture::cancelled ( quint32  serial,
quint32  time 
)
signal

A gesture got cancelled by the Wayland compositor.

Parameters
serialUnique serial for this cancel gesture event.
timeTimestamp in milliseconds granularity
See also
started
updated
ended
void KWayland::Client::PointerPinchGesture::destroy ( )

Destroys the data held by this PointerPinchGesture.

This method is supposed to be used when the connection to the Wayland server goes away. If the connection is not valid anymore, it's not possible to call release anymore as that calls into the Wayland connection and the call would fail. This method cleans up the data, so that the instance can be deleted or set up to a new zwp_pointer_gesture_pinch_v1 interface once there is a new connection available.

It is suggested to connect this method to ConnectionThread::connectionDied:

See also
release

Definition at line 311 of file pointergestures.cpp.

void KWayland::Client::PointerPinchGesture::ended ( quint32  serial,
quint32  time 
)
signal

A gesture ended.

Parameters
serialUnique serial for this end gesture event.
timeTimestamp in milliseconds granularity
See also
started
updated
cancelled
quint32 KWayland::Client::PointerPinchGesture::fingerCount ( ) const

The number of fingers taking part in this gesture.

If no gesture is in progress 0 is returned.

Definition at line 329 of file pointergestures.cpp.

bool KWayland::Client::PointerPinchGesture::isValid ( ) const
Returns
true if managing a zwp_pointer_gesture_pinch_v1.

Definition at line 324 of file pointergestures.cpp.

void KWayland::Client::PointerPinchGesture::release ( )

Releases the zwp_pointer_gesture_pinch_v1 interface.

After the interface has been released the PointerPinchGesture instance is no longer valid and can be setup with another zwp_pointer_gesture_pinch_v1 interface.

Definition at line 306 of file pointergestures.cpp.

void KWayland::Client::PointerPinchGesture::setup ( zwp_pointer_gesture_pinch_v1 *  pointerpinchgesture)

Setup this PointerPinchGesture to manage the pointerpinchgesture.

When using PointerGestures::createPointerPinchGesture there is no need to call this method.

Definition at line 301 of file pointergestures.cpp.

void KWayland::Client::PointerPinchGesture::started ( quint32  serial,
quint32  time 
)
signal

A gesture got started.

Parameters
serialUnique serial for this start gesture event.
timeTimestamp in milliseconds granularity
See also
updated
ended
cancelled
QPointer< Surface > KWayland::Client::PointerPinchGesture::surface ( ) const

The Surface on which this gesture is performed.

If no gesture is in progress the returned pointer is null.

Definition at line 334 of file pointergestures.cpp.

void KWayland::Client::PointerPinchGesture::updated ( const QSizeF delta,
qreal  scale,
qreal  rotation,
quint32  time 
)
signal

A gesture got updated.

Parameters
deltarelative coordinates of the logical center of the gesture compared to the previous event
scalean absolute scale compared to the start
rotationrelative angle in degrees clockwise compared to the previous start or update event.
timeTimestamp in milliseconds granularity
See also
started
ended
cancelled

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