QQuickContext2D Class Reference

#include <qquickcontext2d_p.h>

Inheritance diagram for QQuickContext2D:

Collaboration diagram for QQuickContext2D:

Classes
struct	State

Public Types
enum	TextBaseLineType {   Alphabetic =0 , Top , Middle , Bottom ,   Hanging }
enum	TextAlignType {   Start =0 , End , Left , Right ,   Center }
enum	PaintCommand {   Invalid = 0 , UpdateMatrix , ClearRect , FillRect ,   StrokeRect , Fill , Stroke , Clip ,   UpdateBrush , GlobalAlpha , GlobalCompositeOperation , StrokeStyle ,   FillStyle , LineWidth , LineCap , LineJoin ,   LineDash , LineDashOffset , MiterLimit , ShadowOffsetX ,   ShadowOffsetY , ShadowBlur , ShadowColor , Font ,   TextBaseline , TextAlign , FillText , StrokeText ,   DrawImage , DrawPixmap , GetImageData }

Public Member Functions
	QQuickContext2D (QObject *parent=nullptr)
	~QQuickContext2D ()
QStringList	contextNames () const override
void	init (QQuickCanvasItem *canvasItem, const QVariantMap &args) override
void	prepare (const QSize &canvasSize, const QSize &tileSize, const QRect &canvasWindow, const QRect &dirtyRect, bool smooth, bool antialiasing) override
void	flush () override
void	sync ()
QThread *	thread () const
QQuickContext2DTexture *	texture () const
QImage	toImage (const QRectF &bounds) override
QV4::ReturnedValue	v4value () const override
QV4::ExecutionEngine *	v4Engine () const override
void	setV4Engine (QV4::ExecutionEngine *eng) override
QQuickCanvasItem *	canvas () const
QQuickContext2DCommandBuffer *	buffer () const
bool	bufferValid () const
void	popState ()
void	pushState ()
void	reset ()
void	fill ()
void	clip ()
void	stroke ()
void	fillRect (qreal x, qreal y, qreal w, qreal h)
void	strokeRect (qreal x, qreal y, qreal w, qreal h)
void	clearRect (qreal x, qreal y, qreal w, qreal h)
void	drawText (const QString &text, qreal x, qreal y, bool fill)
void	scale (qreal x, qreal y)
void	rotate (qreal angle)
void	shear (qreal h, qreal v)
void	translate (qreal x, qreal y)
void	transform (qreal a, qreal b, qreal c, qreal d, qreal e, qreal f)
void	setTransform (qreal a, qreal b, qreal c, qreal d, qreal e, qreal f)
void	beginPath ()
void	closePath ()
void	moveTo (qreal x, qreal y)
void	lineTo (qreal x, qreal y)
void	quadraticCurveTo (qreal cpx, qreal cpy, qreal x, qreal y)
void	bezierCurveTo (qreal cp1x, qreal cp1y, qreal cp2x, qreal cp2y, qreal x, qreal y)
void	arcTo (qreal x1, qreal y1, qreal x2, qreal y2, qreal radius)
void	rect (qreal x, qreal y, qreal w, qreal h)
void	roundedRect (qreal x, qreal y, qreal w, qreal h, qreal xr, qreal yr)
void	ellipse (qreal x, qreal y, qreal w, qreal h)
void	text (const QString &str, qreal x, qreal y)
void	arc (qreal x, qreal y, qreal radius, qreal startAngle, qreal endAngle, bool anticlockwise)
void	addArcTo (const QPointF &p1, const QPointF &p2, qreal radius)
bool	isPointInPath (qreal x, qreal y) const
QPainterPath	createTextGlyphs (qreal x, qreal y, const QString &text)
QQmlRefPointer< QQuickCanvasPixmap >	createPixmap (const QUrl &url, QSizeF sourceSize=QSizeF())
QSurface *	surface () const
void	setGrabbedImage (const QImage &grab)
Public Member Functions inherited from QQuickCanvasContext
	QQuickCanvasContext (QObject *parent=nullptr)
	~QQuickCanvasContext ()
virtual QStringList	contextNames () const =0
virtual void	init (QQuickCanvasItem *canvasItem, const QVariantMap &args)=0
virtual void	prepare (const QSize &canvasSize, const QSize &tileSize, const QRect &canvasWindow, const QRect &dirtyRect, bool smooth, bool antialiasing)
virtual void	flush ()
virtual QV4::ExecutionEngine *	v4Engine () const =0
virtual void	setV4Engine (QV4::ExecutionEngine *engine)=0
virtual QV4::ReturnedValue	v4value () const =0
virtual QImage	toImage (const QRectF &bounds)=0
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.

Public Attributes
State	state
QStack< QQuickContext2D::State >	m_stateStack
QQuickCanvasItem *	m_canvas
QQuickContext2DCommandBuffer *	m_buffer
QPainterPath	m_path
QV4::PersistentValue	m_fillStyle
QV4::PersistentValue	m_strokeStyle
QV4::PersistentValue	m_v4path
QV4::ExecutionEngine *	m_v4engine
QScopedPointer< QOffscreenSurface >	m_surface
QV4::PersistentValue	m_v4value
QQuickContext2DTexture *	m_texture
QQuickCanvasItem::RenderTarget	m_renderTarget
QQuickCanvasItem::RenderStrategy	m_renderStrategy
QQueue< QQuickContext2DCommandBuffer * >	m_bufferQueue
QThread *	m_thread
QImage	m_grabbedImage
bool	m_grabbed:1

Static Public Attributes
static QMutex	mutex

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe
Signals inherited from QQuickCanvasContext
void	textureChanged ()
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.
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
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 54 of file qquickcontext2d_p.h.

Member Enumeration Documentation

PaintCommand

enum QQuickContext2D::PaintCommand

Enumerator
Invalid
UpdateMatrix
ClearRect
FillRect
StrokeRect
Fill
Stroke
Clip
UpdateBrush
GlobalAlpha
GlobalCompositeOperation
StrokeStyle
FillStyle
LineWidth
LineCap
LineJoin
LineDash
LineDashOffset
MiterLimit
ShadowOffsetX
ShadowOffsetY
ShadowBlur
ShadowColor
Font
TextBaseline
TextAlign
FillText
StrokeText
DrawImage
DrawPixmap
GetImageData

Definition at line 63 of file qquickcontext2d_p.h.

TextAlignType

enum QQuickContext2D::TextAlignType

Enumerator
Start
End
Left
Right
Center

Definition at line 62 of file qquickcontext2d_p.h.

TextBaseLineType

enum QQuickContext2D::TextBaseLineType

Enumerator
Alphabetic
Top
Middle
Bottom
Hanging

Definition at line 61 of file qquickcontext2d_p.h.

Constructor & Destructor Documentation

QQuickContext2D()

QQuickContext2D::QQuickContext2D

(

QObject *

parent = nullptr

)

Definition at line 4230 of file qquickcontext2d.cpp.

~QQuickContext2D()

QQuickContext2D::~QQuickContext2D

(

)

Definition at line 4240 of file qquickcontext2d.cpp.

References QObject::deleteLater(), QMutex::lock(), m_buffer, m_texture, mutex, QQuickContext2DTexture::setItem(), and QMutex::unlock().

Here is the call graph for this function:

Member Function Documentation

addArcTo()

void QQuickContext2D::addArcTo	(	const QPointF &	p1,
		const QPointF &	p2,
		qreal	radius
	)

Definition at line 3916 of file qquickcontext2d.cpp.

References QPointF::dotProduct(), M_PI, p1, p2, qFuzzyCompare(), QPointF::x(), and QPointF::y().

Here is the call graph for this function:

arc()

void QQuickContext2D::arc	(	qreal	x,
		qreal	y,
		qreal	radius,
		qreal	startAngle,
		qreal	endAngle,
		bool	anticlockwise
	)

Definition at line 4048 of file qquickcontext2d.cpp.

References qAbs(), qFuzzyCompare(), qRadiansToDegrees(), qt_is_finite(), and state.

Here is the call graph for this function:

arcTo()

void QQuickContext2D::arcTo	(	qreal	x1,
		qreal	y1,
		qreal	x2,
		qreal	y2,
		qreal	radius
	)

Definition at line 3969 of file qquickcontext2d.cpp.

References qt_is_finite(), and state.

Here is the call graph for this function:

beginPath()

void QQuickContext2D::beginPath

(

)

Definition at line 3846 of file qquickcontext2d.cpp.

bezierCurveTo()

void QQuickContext2D::bezierCurveTo	(	qreal	cp1x,
		qreal	cp1y,
		qreal	cp2x,
		qreal	cp2y,
		qreal	x,
		qreal	y
	)

Definition at line 3901 of file qquickcontext2d.cpp.

References state.

buffer()

QQuickContext2DCommandBuffer * QQuickContext2D::buffer ( ) const

inline

Definition at line 171 of file qquickcontext2d_p.h.

References m_buffer.

Referenced by popState().

Here is the caller graph for this function:

bufferValid()

bool QQuickContext2D::bufferValid ( ) const

inline

Definition at line 173 of file qquickcontext2d_p.h.

References m_buffer.

canvas()

QQuickCanvasItem * QQuickContext2D::canvas ( ) const

inline

Definition at line 170 of file qquickcontext2d_p.h.

References m_canvas.

clearRect()

void QQuickContext2D::clearRect	(	qreal	x,
		qreal	y,
		qreal	w,
		qreal	h
	)

Definition at line 3819 of file qquickcontext2d.cpp.

References qt_is_finite(), and state.

Here is the call graph for this function:

clip()

void QQuickContext2D::clip

(

)

Definition at line 3770 of file qquickcontext2d.cpp.

References QPainterPath::closeSubpath(), QPainterPath::intersected(), and state.

Here is the call graph for this function:

closePath()

void QQuickContext2D::closePath

(

)

Definition at line 3853 of file qquickcontext2d.cpp.

References QRectF::height(), and QRectF::width().

Here is the call graph for this function:

contextNames()

QStringList QQuickContext2D::contextNames ( ) const

overridevirtual

Implements QQuickCanvasContext.

Definition at line 4255 of file qquickcontext2d.cpp.

References QStringLiteral.

createPixmap()

QQmlRefPointer< QQuickCanvasPixmap > QQuickContext2D::createPixmap	(	const QUrl &	url,
		QSizeF	sourceSize = QSizeF()
	)

Definition at line 4155 of file qquickcontext2d.cpp.

References url.

createTextGlyphs()

QPainterPath QQuickContext2D::createTextGlyphs	(	qreal	x,
		qreal	y,
		const QString &	text
	)

Definition at line 4160 of file qquickcontext2d.cpp.

References QPainterPath::addText(), baseLineOffset(), state, text, and textAlignOffset().

Here is the call graph for this function:

drawText()

void QQuickContext2D::drawText	(	const QString &	text,
		qreal	x,
		qreal	y,
		bool	fill
	)

Definition at line 3830 of file qquickcontext2d.cpp.

References fill(), qt_is_finite(), state, and text.

Here is the call graph for this function:

ellipse()

void QQuickContext2D::ellipse	(	qreal	x,
		qreal	y,
		qreal	w,
		qreal	h
	)

Definition at line 4021 of file qquickcontext2d.cpp.

References qt_is_finite(), and state.

Here is the call graph for this function:

fill()

void QQuickContext2D::fill

(

)

Definition at line 3758 of file qquickcontext2d.cpp.

References state.

fillRect()

void QQuickContext2D::fillRect	(	qreal	x,
		qreal	y,
		qreal	w,
		qreal	h
	)

Definition at line 3797 of file qquickcontext2d.cpp.

References qt_is_finite(), and state.

Here is the call graph for this function:

flush()

void QQuickContext2D::flush ( )

overridevirtual

Reimplemented from QQuickCanvasContext.

Definition at line 4317 of file qquickcontext2d.cpp.

References QThread::currentThread(), m_buffer, m_texture, QQuickContext2DTexture::paint(), QCoreApplication::postEvent(), and QObject::thread().

Referenced by toImage().

Here is the call graph for this function:

Here is the caller graph for this function:

init()

void QQuickContext2D::init ( QQuickCanvasItem *  canvasItem, const QVariantMap &  args  )

overridevirtual

Implements QQuickCanvasContext.

Definition at line 4260 of file qquickcontext2d.cpp.

References QQuickItem::antialiasing, args, QQuickCanvasItem::canvasSize, QQuickCanvasItem::canvasWindow, QObject::connect(), QThread::currentThread(), QQuickCanvasItem::FramebufferObject, QQuickCanvasItem::Image, QQuickContext2DRenderThread::instance(), m_canvas, m_renderStrategy, m_renderTarget, m_texture, m_thread, QObject::moveToThread(), QGuiApplicationPrivate::platformIntegration(), Q_UNUSED, qmlEngine(), QQuickCanvasItem::renderStrategy, QQuickCanvasItem::renderTarget, reset(), QQuickContext2DTexture::setAntialiasing(), QQuickContext2DTexture::setCanvasSize(), QQuickContext2DTexture::setCanvasWindow(), QQuickContext2DTexture::setItem(), QQuickContext2DTexture::setOnCustomThread(), QQuickContext2DTexture::setSmooth(), QQuickContext2DTexture::setTileSize(), SIGNAL, QQuickItem::smooth, QQuickCanvasContext::textureChanged(), QQuickCanvasItem::Threaded, QPlatformIntegration::ThreadedOpenGL, QQuickCanvasItem::tileSize, QRectF::toRect(), and QSizeF::toSize().

Here is the call graph for this function:

isPointInPath()

bool QQuickContext2D::isPointInPath	(	qreal	x,
		qreal	y
	)		const

Definition at line 4184 of file qquickcontext2d.cpp.

References areCollinear(), contains(), i, QTransform::inverted(), QTransform::map(), p1, p2, qAbs(), qt_is_finite(), state, and withinRange().

Here is the call graph for this function:

lineTo()

void QQuickContext2D::lineTo	(	qreal	x,
		qreal	y
	)

Definition at line 3874 of file qquickcontext2d.cpp.

References state.

moveTo()

void QQuickContext2D::moveTo	(	qreal	x,
		qreal	y
	)

Definition at line 3865 of file qquickcontext2d.cpp.

References state.

popState()

void QQuickContext2D::popState

(

)

Definition at line 4396 of file qquickcontext2d.cpp.

References buffer(), QQuickContext2D::State::clip, QQuickContext2DCommandBuffer::clip(), QQuickContext2D::State::clipPath, QQuickContext2D::State::fillStyle, QQuickContext2D::State::globalAlpha, QQuickContext2D::State::globalCompositeOperation, QTransform::inverted(), QList< T >::isEmpty(), QQuickContext2D::State::lineCap, QQuickContext2D::State::lineDash, QQuickContext2D::State::lineJoin, QQuickContext2D::State::lineWidth, m_path, m_stateStack, QTransform::map(), QQuickContext2D::State::matrix, QQuickContext2D::State::miterLimit, newState(), QStack< T >::pop(), QQuickContext2DCommandBuffer::setFillStyle(), QQuickContext2DCommandBuffer::setGlobalAlpha(), QQuickContext2DCommandBuffer::setGlobalCompositeOperation(), QQuickContext2DCommandBuffer::setLineCap(), QQuickContext2DCommandBuffer::setLineDash(), QQuickContext2DCommandBuffer::setLineJoin(), QQuickContext2DCommandBuffer::setLineWidth(), QQuickContext2DCommandBuffer::setMiterLimit(), QQuickContext2DCommandBuffer::setShadowBlur(), QQuickContext2DCommandBuffer::setShadowColor(), QQuickContext2DCommandBuffer::setShadowOffsetX(), QQuickContext2DCommandBuffer::setShadowOffsetY(), QQuickContext2DCommandBuffer::setStrokeStyle(), QQuickContext2D::State::shadowBlur, QQuickContext2D::State::shadowColor, QQuickContext2D::State::shadowOffsetX, QQuickContext2D::State::shadowOffsetY, state, QQuickContext2D::State::strokeStyle, and QQuickContext2DCommandBuffer::updateMatrix().

Referenced by reset().

Here is the call graph for this function:

Here is the caller graph for this function:

prepare()

void QQuickContext2D::prepare ( const QSize &  canvasSize, const QSize &  tileSize, const QRect &  canvasWindow, const QRect &  dirtyRect, bool  smooth, bool  antialiasing  )

overridevirtual

Reimplemented from QQuickCanvasContext.

Definition at line 4302 of file qquickcontext2d.cpp.

References QQuickContext2DTexture::canvasChanged(), QThread::currentThread(), e, m_texture, QCoreApplication::postEvent(), QObject::thread(), and tileSize.

Here is the call graph for this function:

pushState()

void QQuickContext2D::pushState

(

)

Definition at line 4452 of file qquickcontext2d.cpp.

References m_stateStack, QStack< T >::push(), and state.

Here is the call graph for this function:

quadraticCurveTo()

void QQuickContext2D::quadraticCurveTo	(	qreal	cpx,
		qreal	cpy,
		qreal	x,
		qreal	y
	)

Definition at line 3887 of file qquickcontext2d.cpp.

References state.

rect()

void QQuickContext2D::rect	(	qreal	x,
		qreal	y,
		qreal	w,
		qreal	h
	)

Definition at line 3990 of file qquickcontext2d.cpp.

References qt_is_finite(), and state.

Here is the call graph for this function:

reset()

void QQuickContext2D::reset

(

)

Definition at line 4457 of file qquickcontext2d.cpp.

References QList< T >::clear(), QQuickContext2DCommandBuffer::clearRect(), QQuickItem::height, m_buffer, m_canvas, m_path, m_stateStack, newState(), popState(), QStack< T >::push(), QQuickItem::width, and Qt::WindingFill.

Referenced by init().

Here is the call graph for this function:

Here is the caller graph for this function:

rotate()

void QQuickContext2D::rotate

(

qreal

angle

)

Definition at line 3660 of file qquickcontext2d.cpp.

References QTransform::isInvertible(), QTransform::map(), qRadiansToDegrees(), qt_is_finite(), QTransform::rotate(), and state.

Here is the call graph for this function:

roundedRect()

void QQuickContext2D::roundedRect	(	qreal	x,
		qreal	y,
		qreal	w,
		qreal	h,
		qreal	xr,
		qreal	yr
	)

Definition at line 4004 of file qquickcontext2d.cpp.

References Qt::AbsoluteSize, qt_is_finite(), and state.

Here is the call graph for this function:

scale()

void QQuickContext2D::scale	(	qreal	x,
		qreal	y
	)

Definition at line 3639 of file qquickcontext2d.cpp.

References QTransform::isInvertible(), QTransform::map(), qt_is_finite(), QTransform::scale(), and state.

Here is the call graph for this function:

setGrabbedImage()

void QQuickContext2D::setGrabbedImage

(

const QImage &

grab

)

Definition at line 4149 of file qquickcontext2d.cpp.

Referenced by QQuickContext2DImageTexture::grabImage().

Here is the caller graph for this function:

setTransform()

void QQuickContext2D::setTransform	(	qreal	a,
		qreal	b,
		qreal	c,
		qreal	d,
		qreal	e,
		qreal	f
	)

Definition at line 3743 of file qquickcontext2d.cpp.

References d, e, QTransform::inverted(), QTransform::isInvertible(), QTransform::map(), qt_is_finite(), and state.

Here is the call graph for this function:

setV4Engine()

void QQuickContext2D::setV4Engine ( QV4::ExecutionEngine *  eng )

overridevirtual

Implements QQuickCanvasContext.

Definition at line 4476 of file qquickcontext2d.cpp.

References QQuickContext2DEngineData::contextPrototype, engine, m_v4engine, m_v4value, QV4::PersistentValue::value(), and wrapper().

Here is the call graph for this function:

shear()

void QQuickContext2D::shear	(	qreal	h,
		qreal	v
	)

Definition at line 3681 of file qquickcontext2d.cpp.

References QTransform::isInvertible(), QTransform::map(), qt_is_finite(), return, QTransform::shear(), and state.

Here is the call graph for this function:

stroke()

void QQuickContext2D::stroke

(

)

Definition at line 3786 of file qquickcontext2d.cpp.

References state.

strokeRect()

void QQuickContext2D::strokeRect	(	qreal	x,
		qreal	y,
		qreal	w,
		qreal	h
	)

Definition at line 3808 of file qquickcontext2d.cpp.

References qt_is_finite(), and state.

Here is the call graph for this function:

surface()

QSurface * QQuickContext2D::surface ( ) const

inline

Definition at line 217 of file qquickcontext2d_p.h.

References QScopedPointer< T, Cleanup >::data(), and m_surface.

Here is the call graph for this function:

sync()

void QQuickContext2D::sync

(

)

text()

void QQuickContext2D::text	(	const QString &	str,
		qreal	x,
		qreal	y
	)

Definition at line 4038 of file qquickcontext2d.cpp.

References state, and str.

texture()

QQuickContext2DTexture * QQuickContext2D::texture

(

)

const

Definition at line 4328 of file qquickcontext2d.cpp.

References m_texture.

thread()

QThread * QQuickContext2D::thread ( ) const

inline

Definition at line 162 of file qquickcontext2d_p.h.

References m_thread.

toImage()

QImage QQuickContext2D::toImage ( const QRectF &  bounds )

overridevirtual

Implements QQuickCanvasContext.

Definition at line 4333 of file qquickcontext2d.cpp.

References Qt::BlockingQueuedConnection, QQuickCanvasItem::Cooperative, QThread::currentThread(), flush(), QQuickContext2DTexture::grabImage(), QMetaObject::invokeMethod(), m_grabbed, m_grabbedImage, m_renderStrategy, m_texture, QCoreApplication::postEvent(), Q_ARG, qWarning, QObject::thread(), and QEvent::User.

Here is the call graph for this function:

transform()

void QQuickContext2D::transform	(	qreal	a,
		qreal	b,
		qreal	c,
		qreal	d,
		qreal	e,
		qreal	f
	)

Definition at line 3723 of file qquickcontext2d.cpp.

References d, e, QTransform::isInvertible(), qt_is_finite(), and state.

Here is the call graph for this function:

translate()

void QQuickContext2D::translate	(	qreal	x,
		qreal	y
	)

Definition at line 3702 of file qquickcontext2d.cpp.

References QTransform::isInvertible(), QTransform::map(), qt_is_finite(), return, state, and QTransform::translate().

Here is the call graph for this function:

v4Engine()

QV4::ExecutionEngine * QQuickContext2D::v4Engine ( ) const

overridevirtual

Implements QQuickCanvasContext.

Definition at line 4471 of file qquickcontext2d.cpp.

References m_v4engine.

v4value()

QV4::ReturnedValue QQuickContext2D::v4value ( ) const

overridevirtual

Implements QQuickCanvasContext.

Definition at line 4250 of file qquickcontext2d.cpp.

References m_v4value, and QV4::PersistentValue::value().

Here is the call graph for this function:

Member Data Documentation

m_buffer

QQuickContext2DCommandBuffer* QQuickContext2D::m_buffer

Definition at line 223 of file qquickcontext2d_p.h.

Referenced by ~QQuickContext2D(), buffer(), bufferValid(), flush(), and reset().

m_bufferQueue

QQueue<QQuickContext2DCommandBuffer*> QQuickContext2D::m_bufferQueue

Definition at line 234 of file qquickcontext2d_p.h.

m_canvas

QQuickCanvasItem* QQuickContext2D::m_canvas

Definition at line 222 of file qquickcontext2d_p.h.

Referenced by canvas(), init(), and reset().

m_fillStyle

QV4::PersistentValue QQuickContext2D::m_fillStyle

Definition at line 225 of file qquickcontext2d_p.h.

m_grabbed

bool QQuickContext2D::m_grabbed

Definition at line 237 of file qquickcontext2d_p.h.

Referenced by toImage().

m_grabbedImage

QImage QQuickContext2D::m_grabbedImage

Definition at line 236 of file qquickcontext2d_p.h.

Referenced by toImage().

m_path

QPainterPath QQuickContext2D::m_path

Definition at line 224 of file qquickcontext2d_p.h.

Referenced by popState(), and reset().

m_renderStrategy

QQuickCanvasItem::RenderStrategy QQuickContext2D::m_renderStrategy

Definition at line 233 of file qquickcontext2d_p.h.

Referenced by init(), and toImage().

m_renderTarget

QQuickCanvasItem::RenderTarget QQuickContext2D::m_renderTarget

Definition at line 232 of file qquickcontext2d_p.h.

Referenced by init().

m_stateStack

QStack<QQuickContext2D::State> QQuickContext2D::m_stateStack

Definition at line 221 of file qquickcontext2d_p.h.

Referenced by popState(), pushState(), and reset().

m_strokeStyle

QV4::PersistentValue QQuickContext2D::m_strokeStyle

Definition at line 226 of file qquickcontext2d_p.h.

m_surface

QScopedPointer<QOffscreenSurface> QQuickContext2D::m_surface

Definition at line 229 of file qquickcontext2d_p.h.

Referenced by surface().

m_texture

QQuickContext2DTexture* QQuickContext2D::m_texture

Definition at line 231 of file qquickcontext2d_p.h.

Referenced by ~QQuickContext2D(), flush(), init(), prepare(), texture(), and toImage().

m_thread

QThread* QQuickContext2D::m_thread

Definition at line 235 of file qquickcontext2d_p.h.

Referenced by init(), and thread().

m_v4engine

QV4::ExecutionEngine* QQuickContext2D::m_v4engine

Definition at line 228 of file qquickcontext2d_p.h.

Referenced by setV4Engine(), and v4Engine().

m_v4path

QV4::PersistentValue QQuickContext2D::m_v4path

Definition at line 227 of file qquickcontext2d_p.h.

m_v4value

QV4::PersistentValue QQuickContext2D::m_v4value

Definition at line 230 of file qquickcontext2d_p.h.

Referenced by setV4Engine(), and v4value().

mutex

QMutex QQuickContext2D::mutex

static

Definition at line 239 of file qquickcontext2d_p.h.

Referenced by ~QQuickContext2D(), QQuickContext2DImageTexture::grabImage(), and QQuickContext2DTexture::paint().

state

State QQuickContext2D::state

Definition at line 220 of file qquickcontext2d_p.h.

Referenced by popState(), pushState(), and QQuickContext2DTexture::setItem().

---

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

• qtdeclarative/src/quick/items/context2d/qquickcontext2d_p.h
• qtdeclarative/src/quick/items/context2d/qquickcontext2d.cpp