#include <qxcbcursor.h>

Inheritance diagram for QXcbCursor:

Collaboration diagram for QXcbCursor:

Public Member Functions
	QXcbCursor (QXcbConnection conn, QXcbScreen screen)

	~QXcbCursor ()

void	changeCursor (QCursor cursor, QWindow window) override
	This method is called by Qt whenever the cursor graphic should be changed.

QPoint	pos () const override

void	setPos (const QPoint &pos) override

void	updateContext ()

xcb_cursor_t	xcbCursor (const QCursor &c) const

Public Member Functions inherited from QXcbObject
	QXcbObject (QXcbConnection *connection=nullptr)

void	setConnection (QXcbConnection *connection)

QXcbConnection *	connection () const

xcb_atom_t	atom (QXcbAtom::Atom atom) const

xcb_connection_t *	xcb_connection () const

Public Member Functions inherited from QPlatformCursor
	QPlatformCursor ()
	Constructs a QPlatformCursor.

virtual void	pointerEvent (const QMouseEvent &event)
	This method is called by Qt whenever a QMouseEvent is generated by the underlying pointer input.

virtual void	changeCursor (QCursor windowCursor, QWindow window)=0
	This method is called by Qt whenever the cursor graphic should be changed.

virtual void	setOverrideCursor (const QCursor &)
	Reimplement this function in subclass to set an override cursor on the associated screen and return true to indicate success.

virtual void	clearOverrideCursor ()
	Reimplement this function in subclass to clear the override cursor.

virtual QPoint	pos () const

virtual void	setPos (const QPoint &pos)

virtual QSize	size () const
	Returns the size of the cursor, in native pixels.

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< QString >	bindableObjectName ()

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).

QThread *	thread () const
	Returns the thread in which the object lives.

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children.

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::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)
	Kills the timer with timer identifier, id.

template<typename T >
T	findChild (const QString &aName=QString(), 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 (const QString &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 >
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 QObjectList &	children () 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< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () 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`.

Static Public Member Functions
static void	queryPointer (QXcbConnection c, QXcbVirtualDesktop virtualDesktop, QPoint pos, int *keybMask=nullptr)

Static Public Member Functions inherited from QPlatformCursor
static Capabilities	capabilities ()

static void	setCapabilities (Capabilities c)

static void	setCapability (Capability c)

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)

Additional Inherited Members
Public Types inherited from QPlatformCursor
enum	Capability { OverrideCursor = 0x1 }

Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

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.

Protected Member Functions inherited from QObject
QObject *	sender () 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< QObjectData >	d_ptr

Properties inherited from QObject
QString	objectName
	the name of this object

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 40 of file qxcbcursor.h.

Constructor & Destructor Documentation

◆ QXcbCursor()

QXcbCursor::QXcbCursor	(	QXcbConnection *	conn,
		QXcbScreen *	screen
	)

Definition at line 253 of file qxcbcursor.cpp.

References cursorCount, cursorFont, QCache< Key, T >::setMaxCost(), updateContext(), and QXcbObject::xcb_connection().

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◆ ~QXcbCursor()

QXcbCursor::~QXcbCursor ( )

Definition at line 271 of file qxcbcursor.cpp.

References cursor, cursorCount, cursorFont, QXcbXSettings::removeCallbackForHandle(), QXcbObject::xcb_connection(), and QXcbScreen::xSettings().

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Member Function Documentation

◆ changeCursor()

void QXcbCursor::changeCursor	(	QCursor *	windowCursor,
		QWindow *	window
	)

overridevirtual

This method is called by Qt whenever the cursor graphic should be changed.

Implementation of this method is mandatory for a subclass of QPlatformCursor.

windowCursor is a pointer to the QCursor that should be displayed.

To unset the cursor of window, \nullptr is passed. This means window does not have a cursor set and the cursor of a the first parent window which has a cursor explicitly set or the system default cursor should take effect.

window is a pointer to the window currently displayed at QCursor::pos(). Note that this may be \nullptr if the current position is not occupied by a displayed widget.

See also: QCursor::pos()

Implements QPlatformCursor.

Definition at line 306 of file qxcbcursor.cpp.

References Qt::BitmapCursor, cursor, QHash< Key, T >::end(), QHash< Key, T >::find(), QHash< Key, T >::insert(), QCache< Key, T >::insert(), it, QCache< Key, T >::object(), QCursor::shape(), window(), and QXcbObject::xcb_connection().

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◆ pos()

QPoint QXcbCursor::pos ( ) const

overridevirtual

Reimplemented from QPlatformCursor.

Definition at line 573 of file qxcbcursor.cpp.

References QXcbObject::connection(), and queryPointer().

Referenced by queryPointer(), and setPos().

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◆ queryPointer()

void QXcbCursor::queryPointer	(	QXcbConnection *	c,
		QXcbVirtualDesktop **	virtualDesktop,
		QPoint *	pos,
		int *	keybMask = `nullptr`
	)

static

Note that the logical state of a device (as seen by means of the protocol) may lag the physical state if device event processing is frozen. See QueryPointer in X11 protocol specification.

Definition at line 547 of file qxcbcursor.cpp.

References pos(), Q_XCB_REPLY, and reply.

Referenced by QXcbDrag::move(), pos(), QXcbConnection::queryKeyboardModifiers(), QXcbConnection::queryMouseButtons(), and setPos().

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◆ setPos()

void QXcbCursor::setPos ( const QPoint & pos )

overridevirtual

Reimplemented from QPlatformCursor.

Definition at line 580 of file qxcbcursor.cpp.

References QXcbObject::connection(), pos(), queryPointer(), QXcbVirtualDesktop::root(), QPoint::x(), QXcbObject::xcb_connection(), and QPoint::y().

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◆ updateContext()

void QXcbCursor::updateContext ( )

Definition at line 291 of file qxcbcursor.cpp.

References qWarning, QXcbScreen::screen(), and QXcbObject::xcb_connection().

Referenced by QXcbCursor().

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◆ xcbCursor()

xcb_cursor_t QXcbCursor::xcbCursor ( const QCursor & c ) const

inline

Definition at line 56 of file qxcbcursor.h.

References QHash< Key, T >::value().

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

qtbase/src/plugins/platforms/xcb/qxcbcursor.h
qtbase/src/plugins/platforms/xcb/qxcbcursor.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QXcbCursor()

◆ ~QXcbCursor()

Member Function Documentation

◆ changeCursor()

◆ pos()

◆ queryPointer()

◆ setPos()

◆ updateContext()

◆ xcbCursor()