#include <qwasmscreen.h>

Inheritance diagram for QWasmScreen:

Collaboration diagram for QWasmScreen:

Public Slots
void	setGeometry (const QRect &rect)
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Public Member Functions
	QWasmScreen (const emscripten::val &containerOrCanvas)
	~QWasmScreen ()
void	deleteScreen ()
emscripten::val	element () const
QString	outerScreenId () const
QPointingDevice *	touchDevice ()
QPointingDevice *	tabletDevice ()
QWasmCompositor *	compositor ()
QWasmDeadKeySupport *	deadKeySupport ()
QList< QWasmWindow * >	allWindows () const
QRect	geometry () const override
	Reimplement in subclass to return the pixel geometry of the screen.
int	depth () const override
	Reimplement in subclass to return current depth of the screen.
QImage::Format	format () const override
	Reimplement in subclass to return the image format which corresponds to the screen format.
QDpi	logicalDpi () const override
	Reimplement this function in subclass to return the logical horizontal and vertical dots per inch metrics of the screen.
qreal	devicePixelRatio () const override
	Reimplement this function in subclass to return the device pixel ratio for the screen.
QString	name () const override
QPlatformCursor *	cursor () const override
	Reimplement this function in subclass to return the cursor of the screen.
void	resizeMaximizedWindows ()
QWindow *	topWindow () const
QWindow *	topLevelAt (const QPoint &p) const override
	Return the given top level window for a given position.
emscripten::val	containerElement () final
QWasmWindowTreeNode *	parentNode () final
QPointF	mapFromLocal (const QPointF &p) const
QPointF	clipPoint (const QPointF &p) const
void	invalidateSize ()
void	updateQScreenSize ()
void	installCanvasResizeObserver ()
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	isQmlObjectType () const
	Returns whether the object has been created by the QML engine or ownership has been explicitly set via QJSEngine::setObjectOwnership().
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.
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>
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>
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 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`.
Public Member Functions inherited from QPlatformScreen
	QPlatformScreen ()
virtual	~QPlatformScreen ()
virtual bool	isPlaceholder () const
virtual QPixmap	grabWindow (WId window, int x, int y, int width, int height) const
	This function is called when Qt needs to be able to grab the content of a window.
virtual QRect	availableGeometry () const
	Reimplement in subclass to return the pixel geometry of the available space This normally is the desktop screen minus the task manager, global menubar etc.
virtual QColorSpace	colorSpace () const
virtual QSizeF	physicalSize () const
	Reimplement this function in subclass to return the physical size of the screen, in millimeters.
virtual QDpi	logicalBaseDpi () const
	Reimplement to return the base logical DPI for the platform.
virtual qreal	refreshRate () const
	Reimplement this function in subclass to return the vertical refresh rate of the screen, in Hz.
virtual Qt::ScreenOrientation	nativeOrientation () const
	Reimplement this function in subclass to return the native orientation of the screen, e.g.
virtual Qt::ScreenOrientation	orientation () const
	Reimplement this function in subclass to return the current orientation of the screen, for example based on accelerometer data to determine the device orientation.
QWindowList	windows () const
	Return all windows residing on this screen.
virtual QList< QPlatformScreen * >	virtualSiblings () const
	Returns a list of all the platform screens that are part of the same virtual desktop.
const QPlatformScreen *	screenForPosition (const QPoint &point) const
	Find the sibling screen corresponding to globalPos.
QScreen *	screen () const
virtual QString	manufacturer () const
	Reimplement this function in subclass to return the manufacturer of this screen.
virtual QString	model () const
	Reimplement this function in subclass to return the model of this screen.
virtual QString	serialNumber () const
	Reimplement this function in subclass to return the serial number of this screen.
virtual SubpixelAntialiasingType	subpixelAntialiasingTypeHint () const
	Returns a hint about this screen's subpixel layout structure.
virtual PowerState	powerState () const
	Returns the current power state.
virtual void	setPowerState (PowerState state)
	Sets the power state for this screen.
virtual QList< Mode >	modes () const
	Reimplement this function in subclass to return the list of modes for this screen.
virtual int	currentMode () const
	Reimplement this function in subclass to return the index of the current mode from the modes list.
virtual int	preferredMode () const
	Reimplement this function in subclass to return the preferred mode index from the modes list.
Public Member Functions inherited from QWasmWindowTreeNode< Window >
	QWasmWindowTreeNode ()
virtual	~QWasmWindowTreeNode ()

Static Public Member Functions
static QWasmScreen *	get (QPlatformScreen *screen)
static QWasmScreen *	get (QScreen *screen)
static void	canvasResizeObserverCallback (emscripten::val entries, emscripten::val)
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)
Static Public Member Functions inherited from QPlatformScreen
static QPlatformScreen *	platformScreenForWindow (const QWindow *window)
static int	angleBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b)
static QTransform	transformBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &target)
static QRect	mapBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &rect)
static QDpi	overrideDpi (const QDpi &in)

Private Member Functions
void	onSubtreeChanged (QWasmWindowTreeNodeChangeType changeType, QWasmWindowTreeNode parent, QWasmWindow child) final

Additional Inherited Members
Public Types inherited from QPlatformScreen
enum	SubpixelAntialiasingType { Subpixel_None , Subpixel_RGB , Subpixel_BGR , Subpixel_VRGB , Subpixel_VBGR }
enum	PowerState { PowerStateOn , PowerStateStandby , PowerStateSuspend , PowerStateOff }
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 Member Functions inherited from QPlatformScreen
void	resizeMaximizedWindows ()
	Convenience method to resize all the maximized and fullscreen windows of this platform screen.
Protected Member Functions inherited from QWasmWindowTreeNode< Window >
virtual void	onParentChanged (QWasmWindowTreeNode previous, QWasmWindowTreeNode current, typename QWasmWindowStack< Window >::PositionPreference positionPreference)
virtual Window *	asWasmWindow ()
virtual void	onSubtreeChanged (QWasmWindowTreeNodeChangeType changeType, QWasmWindowTreeNode parent, Window child)
virtual void	setWindowZOrder (Window *window, int z)
void	onPositionPreferenceChanged (typename QWasmWindowStack< Window >::PositionPreference positionPreference)
void	setAsActiveNode ()
void	bringToTop ()
void	sendToBottom ()
const QWasmWindowStack< Window > &	childStack () const
QWasmWindowStack< Window > &	childStack ()
Window *	activeChild () const
uint64_t	getActiveIndex () const
Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr
Protected Attributes inherited from QPlatformScreen
QScopedPointer< QPlatformScreenPrivate >	d_ptr
Static Protected Attributes inherited from QWasmWindowTreeNodeBase
static uint64_t	s_nextActiveIndex = 0
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 28 of file qwasmscreen.h.

Constructor & Destructor Documentation

◆ QWasmScreen()

QWasmScreen::QWasmScreen ( const emscripten::val & containerOrCanvas )

Definition at line 29 of file qwasmscreen.cpp.

References updateQScreenSize().

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◆ ~QWasmScreen()

QWasmScreen::~QWasmScreen ( )

Definition at line 101 of file qwasmscreen.cpp.

Member Function Documentation

◆ allWindows()

QList< QWasmWindow * > QWasmScreen::allWindows ( ) const

Definition at line 333 of file qwasmscreen.cpp.

◆ canvasResizeObserverCallback()

void QWasmScreen::canvasResizeObserverCallback	(	emscripten::val	entries,
		emscripten::val	)

static

Definition at line 283 of file qwasmscreen.cpp.

References updateQScreenSize().

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◆ clipPoint()

QPointF QWasmScreen::clipPoint ( const QPointF & p ) const

Definition at line 228 of file qwasmscreen.cpp.

◆ compositor()

QWasmCompositor * QWasmScreen::compositor ( )

Definition at line 127 of file qwasmscreen.cpp.

◆ containerElement()

emscripten::val QWasmScreen::containerElement ( )

finalvirtual

Implements QWasmWindowTreeNode< Window >.

Definition at line 323 of file qwasmscreen.cpp.

◆ cursor()

QPlatformCursor * QWasmScreen::cursor ( ) const

overridevirtual

Reimplement this function in subclass to return the cursor of the screen.

The default implementation returns \nullptr.

Reimplemented from QPlatformScreen.

Definition at line 195 of file qwasmscreen.cpp.

◆ deadKeySupport()

QWasmDeadKeySupport * QWasmScreen::deadKeySupport ( )

inline

Definition at line 44 of file qwasmscreen.h.

◆ deleteScreen()

void QWasmScreen::deleteScreen ( )

Definition at line 109 of file qwasmscreen.cpp.

Referenced by QWasmIntegration::removeContainerElement().

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◆ depth()

int QWasmScreen::depth ( ) const

overridevirtual

Reimplement in subclass to return current depth of the screen.

Implements QPlatformScreen.

Definition at line 148 of file qwasmscreen.cpp.

◆ devicePixelRatio()

qreal QWasmScreen::devicePixelRatio ( ) const

overridevirtual

Reimplement this function in subclass to return the device pixel ratio for the screen.

This is the ratio between physical pixels and the device-independent pixels of the windowing system. The default implementation returns 1.0.

See also: QPlatformWindow::devicePixelRatio()

Reimplemented from QPlatformScreen.

Definition at line 169 of file qwasmscreen.cpp.

◆ element()

emscripten::val QWasmScreen::element ( ) const

Definition at line 132 of file qwasmscreen.cpp.

Referenced by QWasmDrag::onNativeDrop(), and QWasmWindow::onNonClientEvent().

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◆ format()

QImage::Format QWasmScreen::format ( ) const

overridevirtual

Reimplement in subclass to return the image format which corresponds to the screen format.

Implements QPlatformScreen.

Definition at line 153 of file qwasmscreen.cpp.

◆ geometry()

QRect QWasmScreen::geometry ( ) const

overridevirtual

Reimplement in subclass to return the pixel geometry of the screen.

Implements QPlatformScreen.

Definition at line 143 of file qwasmscreen.cpp.

◆ get() [1/2]

QWasmScreen * QWasmScreen::get ( QPlatformScreen * screen )

static

Definition at line 115 of file qwasmscreen.cpp.

◆ get() [2/2]

QWasmScreen * QWasmScreen::get ( QScreen * screen )

static

Definition at line 120 of file qwasmscreen.cpp.

◆ installCanvasResizeObserver()

void QWasmScreen::installCanvasResizeObserver ( )

Definition at line 305 of file qwasmscreen.cpp.

◆ invalidateSize()

void QWasmScreen::invalidateSize ( )

Definition at line 235 of file qwasmscreen.cpp.

◆ logicalDpi()

QDpi QWasmScreen::logicalDpi ( ) const

overridevirtual

Reimplement this function in subclass to return the logical horizontal and vertical dots per inch metrics of the screen.

The logical dots per inch metrics are used by Qt to scale the user interface.

The default implementation returns logicalBaseDpi(), which results in a UI scale factor of 1.0.

See also: physicalSize

Reimplemented from QPlatformScreen.

Definition at line 158 of file qwasmscreen.cpp.

◆ mapFromLocal()

QPointF QWasmScreen::mapFromLocal ( const QPointF & p ) const

Definition at line 223 of file qwasmscreen.cpp.

◆ name()

QString QWasmScreen::name ( ) const

overridevirtual

Reimplemented from QPlatformScreen.

Definition at line 190 of file qwasmscreen.cpp.

◆ onSubtreeChanged()

void QWasmScreen::onSubtreeChanged	(	QWasmWindowTreeNodeChangeType	changeType,
		QWasmWindowTreeNode *	parent,
		QWasmWindow *	child )

finalprivate

Definition at line 248 of file qwasmscreen.cpp.

References NodeInsertion.

◆ outerScreenId()

QString QWasmScreen::outerScreenId ( ) const

Definition at line 138 of file qwasmscreen.cpp.

◆ parentNode()

QWasmWindowTreeNode * QWasmScreen::parentNode ( )

finalvirtual

Implements QWasmWindowTreeNode< Window >.

Definition at line 328 of file qwasmscreen.cpp.

◆ resizeMaximizedWindows()

void QWasmScreen::resizeMaximizedWindows ( )

Definition at line 200 of file qwasmscreen.cpp.

Referenced by setGeometry().

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◆ setGeometry

void QWasmScreen::setGeometry ( const QRect & rect )

slot

Definition at line 240 of file qwasmscreen.cpp.

References resizeMaximizedWindows().

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◆ tabletDevice()

QPointingDevice * QWasmScreen::tabletDevice ( )

inline

Definition at line 41 of file qwasmscreen.h.

◆ topLevelAt()

QWindow * QWasmScreen::topLevelAt ( const QPoint & pos ) const

overridevirtual

Return the given top level window for a given position.

Default implementation retrieves a list of all top level windows and finds the first window which contains point pos

Reimplemented from QPlatformScreen.

Definition at line 212 of file qwasmscreen.cpp.

◆ topWindow()

QWindow * QWasmScreen::topWindow ( ) const

Definition at line 207 of file qwasmscreen.cpp.

◆ touchDevice()

QPointingDevice * QWasmScreen::touchDevice ( )

inline

Definition at line 40 of file qwasmscreen.h.

◆ updateQScreenSize()

void QWasmScreen::updateQScreenSize ( )

Definition at line 264 of file qwasmscreen.cpp.

Referenced by QWasmScreen(), and canvasResizeObserverCallback().

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

qtbase/src/plugins/platforms/wasm/qwasmscreen.h (e48c19449e3856661f4fe2ccd30d94ba9d61301f)
qtbase/src/plugins/platforms/wasm/qwasmscreen.cpp (e48c19449e3856661f4fe2ccd30d94ba9d61301f)

Public Slots

Public Member Functions

Static Public Member Functions

Private Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QWasmScreen()

◆ ~QWasmScreen()

Member Function Documentation

◆ allWindows()

◆ canvasResizeObserverCallback()

◆ clipPoint()

◆ compositor()

◆ containerElement()

◆ cursor()

◆ deadKeySupport()

◆ deleteScreen()

◆ depth()

◆ devicePixelRatio()

◆ element()

◆ format()

◆ geometry()

◆ get() [1/2]

◆ get() [2/2]

◆ installCanvasResizeObserver()

◆ invalidateSize()

◆ logicalDpi()

◆ mapFromLocal()

◆ name()

◆ onSubtreeChanged()

◆ outerScreenId()

◆ parentNode()

◆ resizeMaximizedWindows()

◆ setGeometry

◆ tabletDevice()

◆ topLevelAt()

◆ topWindow()

◆ touchDevice()

◆ updateQScreenSize()