#include <qemulationpaintengine_p.h>

Inheritance diagram for QEmulationPaintEngine:

Collaboration diagram for QEmulationPaintEngine:

Public Member Functions
	QEmulationPaintEngine (QPaintEngineEx *engine)

bool	begin (QPaintDevice *pdev) override
	Reimplement this function to initialise your paint engine when painting is to start on the paint device pdev.

bool	end () override
	Reimplement this function to finish painting on the current paint device.

Type	type () const override
	Reimplement this function to return the paint engine \l{Type}.

QPainterState *	createState (QPainterState *orig) const override

void	fill (const QVectorPath &path, const QBrush &brush) override

void	stroke (const QVectorPath &path, const QPen &pen) override

void	clip (const QVectorPath &path, Qt::ClipOperation op) override

void	drawPixmap (const QRectF &r, const QPixmap &pm, const QRectF &sr) override
	Reimplement this function to draw the part of the pm specified by the sr rectangle in the given r.

void	drawTextItem (const QPointF &p, const QTextItem &textItem) override
	This function draws the text item textItem at position p.

void	drawStaticTextItem (QStaticTextItem *item) override

void	drawTiledPixmap (const QRectF &r, const QPixmap &pixmap, const QPointF &s) override
	Reimplement this function to draw the pixmap in the given rect, starting at the given p.

void	drawImage (const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags flags) override
	Reimplement this function to draw the part of the image specified by the sr rectangle in the given rectangle using the given conversion flags flags, to convert it to a pixmap.

void	clipEnabledChanged () override

void	penChanged () override

void	brushChanged () override

void	brushOriginChanged () override

void	opacityChanged () override

void	compositionModeChanged () override

void	renderHintsChanged () override

void	transformChanged () override

void	setState (QPainterState *s) override

void	beginNativePainting () override

void	endNativePainting () override

uint	flags () const override

QPainterState *	state ()

const QPainterState *	state () const

Public Member Functions inherited from QPaintEngineEx
	QPaintEngineEx ()

virtual void	draw (const QVectorPath &path)

virtual void	clip (const QRect &rect, Qt::ClipOperation op)

virtual void	clip (const QRegion &region, Qt::ClipOperation op)

virtual void	clip (const QPainterPath &path, Qt::ClipOperation op)

virtual void	fillRect (const QRectF &rect, const QBrush &brush)

virtual void	fillRect (const QRectF &rect, const QColor &color)

virtual void	drawRoundedRect (const QRectF &rect, qreal xrad, qreal yrad, Qt::SizeMode mode)

virtual void	drawRects (const QRect *rects, int rectCount) override
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.The default implementation converts the first rectCount rectangles in the buffer rects to a QRectF and calls the floating point version of this function.

virtual void	drawRects (const QRectF *rects, int rectCount) override
	Draws the first rectCount rectangles in the buffer rects.

virtual void	drawLines (const QLine *lines, int lineCount) override
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.The default implementation converts the first lineCount lines in lines to a QLineF and calls the floating point version of this function.

virtual void	drawLines (const QLineF *lines, int lineCount) override
	The default implementation splits the list of lines in lines into lineCount separate calls to drawPath() or drawPolygon() depending on the feature set of the paint engine.

virtual void	drawEllipse (const QRectF &r) override
	Reimplement this function to draw the largest ellipse that can be contained within rectangle rect.

virtual void	drawEllipse (const QRect &r) override
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.The default implementation of this function calls the floating point version of this function.

virtual void	drawPath (const QPainterPath &path) override
	The default implementation ignores the path and does nothing.

virtual void	drawPoints (const QPointF *points, int pointCount) override
	Draws the first pointCount points in the buffer points.

virtual void	drawPoints (const QPoint *points, int pointCount) override
	Draws the first pointCount points in the buffer points.

virtual void	drawPolygon (const QPointF *points, int pointCount, PolygonDrawMode mode) override
	Reimplement this virtual function to draw the polygon defined by the pointCount first points in points, using mode mode.

virtual void	drawPolygon (const QPoint *points, int pointCount, PolygonDrawMode mode) override
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Reimplement this virtual function to draw the polygon defined by the pointCount first points in points, using mode mode.

virtual void	drawPixmap (const QPointF &pos, const QPixmap &pm)

virtual void	drawImage (const QPointF &pos, const QImage &image)

virtual void	drawPixmapFragments (const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap, QFlags< QPainter::PixmapFragmentHint > hints)

virtual void	updateState (const QPaintEngineState &state) override
	Reimplement this function to update the state of a paint engine.

QPainterState *	state ()

const QPainterState *	state () const

virtual void	sync ()

virtual bool	requiresPretransformedGlyphPositions (QFontEngine *fontEngine, const QTransform &m) const

virtual bool	shouldDrawCachedGlyphs (QFontEngine *fontEngine, const QTransform &m) const

Public Member Functions inherited from QPaintEngine
	QPaintEngine (PaintEngineFeatures features=PaintEngineFeatures())
	Creates a paint engine with the featureset specified by caps.

virtual	~QPaintEngine ()
	Destroys the paint engine.

bool	isActive () const
	Returns `true` if the paint engine is actively drawing; otherwise returns `false`.

void	setActive (bool newState)
	Sets the active state of the paint engine to state.

void	setPaintDevice (QPaintDevice *device)

QPaintDevice *	paintDevice () const
	Returns the device that this engine is painting on, if painting is active; otherwise returns \nullptr.

void	setSystemClip (const QRegion &baseClip)

QRegion	systemClip () const

void	setSystemRect (const QRect &rect)

QRect	systemRect () const

virtual QPoint	coordinateOffset () const

void	fix_neg_rect (int x, int y, int w, int h)

bool	testDirty (DirtyFlags df)

void	setDirty (DirtyFlags df)

void	clearDirty (DirtyFlags df)

bool	hasFeature (PaintEngineFeatures feature) const
	Returns `true` if the paint engine supports the specified feature; otherwise returns `false`.

QPainter *	painter () const
	Returns the paint engine's painter.

void	syncState ()

bool	isExtended () const

virtual QPixmap	createPixmap (QSize size)

virtual QPixmap	createPixmapFromImage (QImage image, Qt::ImageConversionFlags flags=Qt::AutoColor)

Public Attributes
QPaintEngineEx *	real_engine

Additional Inherited Members
Public Types inherited from QPaintEngineEx
enum	Flags { DoNotEmulate = 0x01 , IsEmulationEngine = 0x02 }

Public Types inherited from QPaintEngine
enum	PaintEngineFeature { PrimitiveTransform = 0x00000001 , PatternTransform = 0x00000002 , PixmapTransform = 0x00000004 , PatternBrush = 0x00000008 , LinearGradientFill = 0x00000010 , RadialGradientFill = 0x00000020 , ConicalGradientFill = 0x00000040 , AlphaBlend = 0x00000080 , PorterDuff = 0x00000100 , PainterPaths = 0x00000200 , Antialiasing = 0x00000400 , BrushStroke = 0x00000800 , ConstantOpacity = 0x00001000 , MaskedBrush = 0x00002000 , PerspectiveTransform = 0x00004000 , BlendModes = 0x00008000 , ObjectBoundingModeGradients = 0x00010000 , RasterOpModes = 0x00020000 , PaintOutsidePaintEvent = 0x20000000 , AllFeatures = 0xffffffff }
	This enum is used to describe the features or capabilities that the paint engine has. More...

enum	DirtyFlag { DirtyPen = 0x0001 , DirtyBrush = 0x0002 , DirtyBrushOrigin = 0x0004 , DirtyFont = 0x0008 , DirtyBackground = 0x0010 , DirtyBackgroundMode = 0x0020 , DirtyTransform = 0x0040 , DirtyClipRegion = 0x0080 , DirtyClipPath = 0x0100 , DirtyHints = 0x0200 , DirtyCompositionMode = 0x0400 , DirtyClipEnabled = 0x0800 , DirtyOpacity = 0x1000 , AllDirty = 0xffff }
	\value DirtyPen The pen is dirty and needs to be updated. More...

enum	PolygonDrawMode { OddEvenMode , WindingMode , ConvexMode , PolylineMode }
	\value OddEvenMode The polygon should be drawn using OddEven fill rule. More...

enum	Type { X11 , Windows , QuickDraw , CoreGraphics , MacPrinter , QWindowSystem , OpenGL , Picture , SVG , Raster , Direct3D , Pdf , OpenVG , OpenGL2 , PaintBuffer , Blitter , Direct2D , User = 50 , MaxUser = 100 }
	\value X11 \value Windows \value MacPrinter \value CoreGraphics \macos's Quartz2D (CoreGraphics) \value QuickDraw \macos's QuickDraw \value QWindowSystem Qt for Embedded Linux \value OpenGL \value Picture QPicture format \value SVG Scalable Vector Graphics XML format \value Raster \value Direct3D Windows only, Direct3D based engine \value Pdf Portable Document Format \value OpenVG \value User First user type ID \value MaxUser Last user type ID \value OpenGL2 \value PaintBuffer \value Blitter \value Direct2D Windows only, Direct2D based engine More...

Protected Member Functions inherited from QPaintEngineEx
	QPaintEngineEx (QPaintEngineExPrivate &data)

Protected Member Functions inherited from QPaintEngine
	QPaintEngine (QPaintEnginePrivate &data, PaintEngineFeatures devcaps=PaintEngineFeatures())

Protected Attributes inherited from QPaintEngine
QPaintEngineState *	state

PaintEngineFeatures	gccaps

uint	active: 1

uint	selfDestruct: 1

uint	extended: 1

QScopedPointer< QPaintEnginePrivate >	d_ptr

Detailed Description

Definition at line 24 of file qemulationpaintengine_p.h.

Constructor & Destructor Documentation

◆ QEmulationPaintEngine()

QT_BEGIN_NAMESPACE QEmulationPaintEngine::QEmulationPaintEngine ( QPaintEngineEx * engine )

Definition at line 11 of file qemulationpaintengine.cpp.

References real_engine, QPaintEngine::state, and QPaintEngineEx::state().

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Member Function Documentation

◆ begin()

bool QEmulationPaintEngine::begin ( QPaintDevice * pdev )

overridevirtual

Reimplement this function to initialise your paint engine when painting is to start on the paint device pdev.

Return true if the initialization was successful; otherwise return false.

See also: end(), isActive()

Implements QPaintEngine.

Definition at line 23 of file qemulationpaintengine.cpp.

◆ beginNativePainting()

void QEmulationPaintEngine::beginNativePainting ( )

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 224 of file qemulationpaintengine.cpp.

References QPaintEngineEx::beginNativePainting(), and real_engine.

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◆ brushChanged()

void QEmulationPaintEngine::brushChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 188 of file qemulationpaintengine.cpp.

References QPaintEngineEx::brushChanged(), and real_engine.

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◆ brushOriginChanged()

void QEmulationPaintEngine::brushOriginChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 193 of file qemulationpaintengine.cpp.

References QPaintEngineEx::brushOriginChanged(), and real_engine.

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◆ clip()

void QEmulationPaintEngine::clip	(	const QVectorPath &	path,
		Qt::ClipOperation	op )

overridevirtual

Implements QPaintEngineEx.

Definition at line 111 of file qemulationpaintengine.cpp.

References QPaintEngineEx::clip(), and real_engine.

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◆ clipEnabledChanged()

void QEmulationPaintEngine::clipEnabledChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 178 of file qemulationpaintengine.cpp.

References QPaintEngineEx::clipEnabledChanged(), and real_engine.

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◆ compositionModeChanged()

void QEmulationPaintEngine::compositionModeChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 203 of file qemulationpaintengine.cpp.

References QPaintEngineEx::compositionModeChanged(), and real_engine.

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◆ createState()

QPainterState * QEmulationPaintEngine::createState ( QPainterState * orig ) const

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 34 of file qemulationpaintengine.cpp.

References QPaintEngineEx::createState(), and real_engine.

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◆ drawImage()

void QEmulationPaintEngine::drawImage	(	const QRectF &	r,
		const QImage &	pm,
		const QRectF &	sr,
		Qt::ImageConversionFlags	flags )

overridevirtual

Reimplement this function to draw the part of the image specified by the sr rectangle in the given rectangle using the given conversion flags flags, to convert it to a pixmap.

Implements QPaintEngineEx.

Definition at line 173 of file qemulationpaintengine.cpp.

References QPaintEngineEx::drawImage(), and real_engine.

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◆ drawPixmap()

void QEmulationPaintEngine::drawPixmap	(	const QRectF &	r,
		const QPixmap &	pm,
		const QRectF &	sr )

overridevirtual

Reimplement this function to draw the part of the pm specified by the sr rectangle in the given r.

Implements QPaintEngineEx.

Definition at line 116 of file qemulationpaintengine.cpp.

References QPaintEngineEx::drawPixmap(), QPixmap::isQBitmap(), Qt::OpaqueMode, real_engine, and state().

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◆ drawStaticTextItem()

void QEmulationPaintEngine::drawStaticTextItem ( QStaticTextItem * item )

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 161 of file qemulationpaintengine.cpp.

References QPaintEngineEx::drawStaticTextItem(), item, and real_engine.

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◆ drawTextItem()

void QEmulationPaintEngine::drawTextItem	(	const QPointF &	p,
		const QTextItem &	textItem )

overridevirtual

This function draws the text item textItem at position p.

The default implementation of this function converts the text to a QPainterPath and paints the resulting path.

Reimplemented from QPaintEngine.

Definition at line 123 of file qemulationpaintengine.cpp.

References combineXForm(), Qt::ConicalGradientPattern, copy(), d, QPainter::device(), QPaintEngine::drawTextItem(), Qt::LinearGradientPattern, QGradient::LogicalMode, Qt::OpaqueMode, QPaintEngine::painter(), penChanged(), qbrush_style(), real_engine, rect, state(), and QGradient::StretchToDeviceMode.

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◆ drawTiledPixmap()

void QEmulationPaintEngine::drawTiledPixmap	(	const QRectF &	rect,
		const QPixmap &	pixmap,
		const QPointF &	p )

overridevirtual

Reimplement this function to draw the pixmap in the given rect, starting at the given p.

The pixmap will be drawn repeatedly until the rect is filled.

Reimplemented from QPaintEngineEx.

Definition at line 166 of file qemulationpaintengine.cpp.

References QPaintEngineEx::drawTiledPixmap(), Qt::OpaqueMode, pixmap, real_engine, and state().

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◆ end()

bool QEmulationPaintEngine::end ( )

overridevirtual

Reimplement this function to finish painting on the current paint device.

Return true if painting was finished successfully; otherwise return false.

See also: begin(), isActive()

Implements QPaintEngine.

Definition at line 28 of file qemulationpaintengine.cpp.

◆ endNativePainting()

void QEmulationPaintEngine::endNativePainting ( )

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 229 of file qemulationpaintengine.cpp.

References QPaintEngineEx::endNativePainting(), and real_engine.

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◆ fill()

void QEmulationPaintEngine::fill	(	const QVectorPath &	path,
		const QBrush &	brush )

overridevirtual

Implements QPaintEngineEx.

Definition at line 48 of file qemulationpaintengine.cpp.

References combineXForm(), Qt::ConicalGradientPattern, copy(), d, Qt::Dense1Pattern, QPainter::device(), Qt::DiagCrossPattern, dpr(), QPaintEngineEx::fill(), Qt::LinearGradientPattern, QGradient::LogicalMode, Qt::OpaqueMode, QPaintEngine::painter(), qbrush_style(), qFuzzyCompare(), qHasPixmapTexture(), real_engine, state(), QGradient::StretchToDeviceMode, and Qt::TexturePattern.

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◆ flags()

uint QEmulationPaintEngine::flags ( ) const

inlineoverridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 59 of file qemulationpaintengine_p.h.

References QPaintEngineEx::DoNotEmulate, and QPaintEngineEx::IsEmulationEngine.

◆ opacityChanged()

void QEmulationPaintEngine::opacityChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 198 of file qemulationpaintengine.cpp.

References QPaintEngineEx::opacityChanged(), and real_engine.

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◆ penChanged()

void QEmulationPaintEngine::penChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 183 of file qemulationpaintengine.cpp.

References QPaintEngineEx::penChanged(), and real_engine.

Referenced by drawTextItem().

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◆ renderHintsChanged()

void QEmulationPaintEngine::renderHintsChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 208 of file qemulationpaintengine.cpp.

References real_engine, and QPaintEngineEx::renderHintsChanged().

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◆ setState()

void QEmulationPaintEngine::setState ( QPainterState * s )

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 218 of file qemulationpaintengine.cpp.

References real_engine, QPaintEngineEx::setState(), and QPaintEngine::state.

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◆ state() [1/2]

QPainterState * QEmulationPaintEngine::state ( )

inline

Definition at line 61 of file qemulationpaintengine_p.h.

References QPaintEngine::state.

Referenced by drawPixmap(), drawTextItem(), drawTiledPixmap(), fill(), and stroke().

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◆ state() [2/2]

const QPainterState * QEmulationPaintEngine::state ( ) const

inline

Definition at line 62 of file qemulationpaintengine_p.h.

References QPaintEngine::state.

◆ stroke()

void QEmulationPaintEngine::stroke	(	const QVectorPath &	path,
		const QPen &	pen )

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 82 of file qemulationpaintengine.cpp.

References QPen::brush(), combineXForm(), Qt::ConicalGradientPattern, copy(), d, QPainter::device(), Qt::LinearGradientPattern, QGradient::LogicalMode, Qt::OpaqueMode, QPaintEngine::painter(), qbrush_style(), real_engine, QPen::setBrush(), Qt::SolidLine, state(), QGradient::StretchToDeviceMode, QPaintEngineEx::stroke(), and QPen::style().

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◆ transformChanged()

void QEmulationPaintEngine::transformChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 213 of file qemulationpaintengine.cpp.

References real_engine, and QPaintEngineEx::transformChanged().

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◆ type()

QPaintEngine::Type QEmulationPaintEngine::type ( ) const

overridevirtual

Reimplement this function to return the paint engine \l{Type}.

Implements QPaintEngine.

Definition at line 18 of file qemulationpaintengine.cpp.

References real_engine, and QPaintEngine::type().

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Member Data Documentation

◆ real_engine

QPaintEngineEx* QEmulationPaintEngine::real_engine

Definition at line 64 of file qemulationpaintengine_p.h.

Referenced by QEmulationPaintEngine(), beginNativePainting(), brushChanged(), brushOriginChanged(), clip(), clipEnabledChanged(), compositionModeChanged(), createState(), drawImage(), drawPixmap(), drawStaticTextItem(), drawTextItem(), drawTiledPixmap(), endNativePainting(), fill(), opacityChanged(), penChanged(), renderHintsChanged(), setState(), stroke(), transformChanged(), and type().

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

qtbase/src/gui/painting/qemulationpaintengine_p.h (05fc3aef53348fb58be6308076e000825b704e58)
qtbase/src/gui/painting/qemulationpaintengine.cpp (05fc3aef53348fb58be6308076e000825b704e58)

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QEmulationPaintEngine()

Member Function Documentation

◆ begin()

◆ beginNativePainting()

◆ brushChanged()

◆ brushOriginChanged()

◆ clip()

◆ clipEnabledChanged()

◆ compositionModeChanged()

◆ createState()

◆ drawImage()

◆ drawPixmap()

◆ drawStaticTextItem()

◆ drawTextItem()

◆ drawTiledPixmap()

◆ end()

◆ endNativePainting()

◆ fill()

◆ flags()

◆ opacityChanged()

◆ penChanged()

◆ renderHintsChanged()

◆ setState()

◆ state() [1/2]

◆ state() [2/2]

◆ stroke()

◆ transformChanged()

◆ type()

Member Data Documentation

◆ real_engine