QRasterPaintEngine Class Reference

The QRasterPaintEngine class enables hardware acceleration of painting operations in Qt for Embedded Linux. More...

#include <qpaintengine_raster_p.h>

Inheritance diagram for QRasterPaintEngine:

Collaboration diagram for QRasterPaintEngine:

Public Types
enum	ClipType { RectClip , ComplexClip }
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...

Public Member Functions
	QRasterPaintEngine (QPaintDevice *device)
	~QRasterPaintEngine ()
	Destroys this paint engine.
bool	begin (QPaintDevice *device) override
	\reimp
bool	end () override
	\reimp
void	penChanged () override
void	brushChanged () override
void	brushOriginChanged () override
void	opacityChanged () override
void	compositionModeChanged () override
void	renderHintsChanged () override
void	transformChanged () override
void	clipEnabledChanged () override
void	setState (QPainterState *s) override
QPainterState *	createState (QPainterState *orig) const override
QRasterPaintEngineState *	state ()
const QRasterPaintEngineState *	state () const
void	updateBrush (const QBrush &brush)
void	updatePen (const QPen &pen)
void	updateMatrix (const QTransform &matrix)
virtual void	fillPath (const QPainterPath &path, QSpanData *fillData)
virtual void	fillPolygon (const QPointF *points, int pointCount, PolygonDrawMode mode)
void	drawPolygon (const QPointF *points, int pointCount, PolygonDrawMode mode) override
	\reimp
void	drawPolygon (const QPoint *points, int pointCount, PolygonDrawMode mode) override
	\reimp
void	drawEllipse (const QRectF &rect) override
	\reimp
void	fillRect (const QRectF &rect, const QBrush &brush) override
	\reimp
void	fillRect (const QRectF &rect, const QColor &color) override
	\reimp
void	drawRects (const QRect *rects, int rectCount) override
	\reimp
void	drawRects (const QRectF *rects, int rectCount) override
	\reimp
void	drawPixmap (const QPointF &p, const QPixmap &pm) override
void	drawPixmap (const QRectF &r, const QPixmap &pm, const QRectF &sr) override
	\reimp
void	drawImage (const QPointF &p, const QImage &img) override
void	drawImage (const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags flags=Qt::AutoColor) override
	\reimp
void	drawTiledPixmap (const QRectF &r, const QPixmap &pm, const QPointF &sr) override
	\reimp
void	drawTextItem (const QPointF &p, const QTextItem &textItem) override
	\reimp
void	drawLines (const QLine *line, int lineCount) override
	\reimp
void	drawLines (const QLineF *line, int lineCount) override
	\reimp
void	drawPoints (const QPointF *points, int pointCount) override
	\reimp
void	drawPoints (const QPoint *points, int pointCount) override
	Draws the first pointCount points in the buffer points.
void	stroke (const QVectorPath &path, const QPen &pen) override
void	fill (const QVectorPath &path, const QBrush &brush) override
void	clip (const QVectorPath &path, Qt::ClipOperation op) override
void	clip (const QRect &rect, Qt::ClipOperation op) override
void	clip (const QRegion &region, Qt::ClipOperation op) override
const QClipData *	clipData () const
void	drawStaticTextItem (QStaticTextItem *textItem) override
	\reimp
virtual bool	drawCachedGlyphs (int numGlyphs, const glyph_t *glyphs, const QFixedPoint *positions, QFontEngine *fontEngine)
ClipType	clipType () const
QRectF	clipBoundingRect () const
QRasterBuffer *	rasterBuffer ()
void	alphaPenBlt (const void *src, int bpl, int depth, int rx, int ry, int w, int h, bool useGammaCorrection)
Type	type () const override
	Reimplement this function to return the paint engine \l{Type}.
QPoint	coordinateOffset () const override
bool	requiresPretransformedGlyphPositions (QFontEngine *fontEngine, const QTransform &m) const override
bool	shouldDrawCachedGlyphs (QFontEngine *fontEngine, const QTransform &m) const override
	Returns whether glyph caching is supported by the font engine fontEngine with the given transform m applied.
Public Member Functions inherited from QPaintEngineEx
	QPaintEngineEx ()
virtual QPainterState *	createState (QPainterState *orig) const
virtual void	draw (const QVectorPath &path)
virtual void	fill (const QVectorPath &path, const QBrush &brush)=0
virtual void	stroke (const QVectorPath &path, const QPen &pen)
virtual void	clip (const QVectorPath &path, Qt::ClipOperation op)=0
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	clipEnabledChanged ()=0
virtual void	penChanged ()=0
virtual void	brushChanged ()=0
virtual void	brushOriginChanged ()=0
virtual void	opacityChanged ()=0
virtual void	compositionModeChanged ()=0
virtual void	renderHintsChanged ()=0
virtual void	transformChanged ()=0
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
	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 QRectF &r, const QPixmap &pm, const QRectF &sr) override=0
	Reimplement this function to draw the part of the pm specified by the sr rectangle in the given r.
virtual void	drawPixmap (const QPointF &pos, const QPixmap &pm)
virtual void	drawImage (const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags flags=Qt::AutoColor) override=0
	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.
virtual void	drawImage (const QPointF &pos, const QImage &image)
virtual 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.
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.
virtual void	drawStaticTextItem (QStaticTextItem *)
virtual void	setState (QPainterState *s)
QPainterState *	state ()
const QPainterState *	state () const
virtual void	sync ()
virtual void	beginNativePainting ()
virtual void	endNativePainting ()
virtual uint	flags () const
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.
virtual bool	begin (QPaintDevice *pdev)=0
	Reimplement this function to initialise your paint engine when painting is to start on the paint device pdev.
virtual bool	end ()=0
	Reimplement this function to finish painting on the current paint device.
virtual void	updateState (const QPaintEngineState &state)=0
	Reimplement this function to update the state of a paint engine.
virtual void	drawRects (const QRect *rects, int rectCount)
	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)
	Draws the first rectCount rectangles in the buffer rects.
virtual void	drawLines (const QLine *lines, int lineCount)
	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)
	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)
	Reimplement this function to draw the largest ellipse that can be contained within rectangle rect.
virtual void	drawEllipse (const QRect &r)
	The default implementation of this function calls the floating point version of this function.
virtual void	drawPath (const QPainterPath &path)
	The default implementation ignores the path and does nothing.
virtual void	drawPoints (const QPointF *points, int pointCount)
	Draws the first pointCount points in the buffer points.
virtual void	drawPoints (const QPoint *points, int pointCount)
	Draws the first pointCount points in the buffer points.
virtual void	drawPolygon (const QPointF *points, int pointCount, PolygonDrawMode mode)
	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)
	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 QRectF &r, const QPixmap &pm, const QRectF &sr)=0
	Reimplement this function to draw the part of the pm specified by the sr rectangle in the given r.
virtual void	drawTextItem (const QPointF &p, const QTextItem &textItem)
	This function draws the text item textItem at position p.
virtual void	drawTiledPixmap (const QRectF &r, const QPixmap &pixmap, const QPointF &s)
	Reimplement this function to draw the pixmap in the given rect, starting at the given p.
virtual void	drawImage (const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags flags=Qt::AutoColor)
	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	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
virtual Type	type () const =0
	Reimplement this function to return the paint engine \l{Type}.
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)

Protected Member Functions
	QRasterPaintEngine (QRasterPaintEnginePrivate &d, QPaintDevice *)
Protected Member Functions inherited from QPaintEngineEx
	QPaintEngineEx (QPaintEngineExPrivate &data)
Protected Member Functions inherited from QPaintEngine
	QPaintEngine (QPaintEnginePrivate &data, PaintEngineFeatures devcaps=PaintEngineFeatures())

Friends
struct	QSpanData
class	QBlitterPaintEngine
class	QBlitterPaintEnginePrivate

Additional Inherited Members
Protected Attributes inherited from QPaintEngine
QPaintEngineState *	state
PaintEngineFeatures	gccaps
uint	active: 1
uint	selfDestruct: 1
uint	extended: 1
QScopedPointer< QPaintEnginePrivate >	d_ptr

Detailed Description

The QRasterPaintEngine class enables hardware acceleration of painting operations in Qt for Embedded Linux.

\inmodule QtGui

Since

4.2

Note that this functionality is only available in Qt for Embedded Linux.

In Qt for Embedded Linux, painting is a pure software implementation. But starting with Qt 4.2, it is possible to add an accelerated graphics driver to take advantage of available hardware resources.

Hardware acceleration is accomplished by creating a custom screen driver, accelerating the copying from memory to the screen, and implementing a custom paint engine accelerating the various painting operations. Then a custom paint device and a custom window surface must be implemented to make Qt for Embedded Linux aware of the accelerated driver.

Note

The QRasterPaintEngine class does not support 8-bit images. Instead, they need to be converted to a supported format, such as QImage::Format_ARGB32_Premultiplied.

See also

QPaintEngine

Definition at line 94 of file qpaintengine_raster_p.h.

Member Enumeration Documentation

ClipType

enum QRasterPaintEngine::ClipType

\value RectClip Indicates that the currently set clip is a single rectangle. \value ComplexClip Indicates that the currently set clip is a combination of several shapes.

Enumerator
RectClip
ComplexClip

Definition at line 167 of file qpaintengine_raster_p.h.

Constructor & Destructor Documentation

QRasterPaintEngine() [1/2]

QRasterPaintEngine::QRasterPaintEngine

(

QPaintDevice *

device

)

Since

4.5

Creates a raster based paint engine for operating on the given device, with the complete set of \l {QPaintEngine::PaintEngineFeature}{paint engine features and capabilities}.

Definition at line 285 of file qpaintengine_raster.cpp.

References device.

~QRasterPaintEngine()

QRasterPaintEngine::~QRasterPaintEngine

(

)

Destroys this paint engine.

Definition at line 375 of file qpaintengine_raster.cpp.

References d, qt_ft_grays_raster, and QT_FT_Raster_Funcs_::raster_done.

QRasterPaintEngine() [2/2]

QRasterPaintEngine::QRasterPaintEngine ( QRasterPaintEnginePrivate &  dd, QPaintDevice *  device  )

protected

Definition at line 295 of file qpaintengine_raster.cpp.

References device.

Member Function Documentation

alphaPenBlt()

void QRasterPaintEngine::alphaPenBlt	(	const void *	src,
		int	bpl,
		int	depth,
		int	rx,
		int	ry,
		int	w,
		int	h,
		bool	useGammaCorrection
	)

Definition at line 2536 of file qpaintengine_raster.cpp.

References clip(), QRasterBuffer::colorSpace, contains(), QT_FT_Span_::coverage, d, QRasterBuffer::height(), QT_FT_Span_::len, QColorSpace::Linear, monoVal(), qGreen(), qMax(), qMin(), rect, rx(), ry(), state(), QColorSpace::transferFunction(), QRasterBuffer::width(), QT_FT_Span_::x, and QT_FT_Span_::y.

Referenced by drawCachedGlyphs().

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begin()

bool QRasterPaintEngine::begin ( QPaintDevice *  device )

overridevirtual

\reimp

Implements QPaintEngine.

Definition at line 385 of file qpaintengine_raster.cpp.

References QPlatformPixmap::BlitterClass, QPlatformPixmap::buffer(), QPlatformPixmap::classId(), QPainter::CompositionMode_SourceOver, QInternal::CustomRaster, d, device, QPaintEngine::DirtyBrushOrigin, QFontEngine::Format_A32, QFontEngine::Format_A8, QImage::Format_ARGB32_Premultiplied, QFontEngine::Format_Mono, QImage::Format_RGB32, QInternal::Image, QInternal::Pixmap, pixmap, Q_ASSERT, qDebug, QPlatformPixmap::RasterClass, QPaintEngine::setActive(), QPaintEngine::setDirty(), and state().

Referenced by QBlitterPaintEngine::begin().

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brushChanged()

void QRasterPaintEngine::brushChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 685 of file qpaintengine_raster.cpp.

References QPaintEngine::DirtyBrush, qDebug, and state().

Referenced by QBlitterPaintEngine::brushChanged().

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brushOriginChanged()

void QRasterPaintEngine::brushOriginChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 671 of file qpaintengine_raster.cpp.

References QPaintEngine::DirtyBrushOrigin, qDebug, and state().

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clip() [1/3]

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

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 1194 of file qpaintengine_raster.cpp.

References QPaintEngineEx::clip(), Qt::NoClip, qDebug, qrasterpaintengine_state_setNoClip(), qt_mapFillRect(), rect, state(), and QTransform::TxScale.

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clip() [2/3]

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

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 1270 of file qpaintengine_raster.cpp.

References QRegion::boundingRect(), clip(), QPaintEngineEx::clip(), QClipData::clipRect, QClipData::clipRegion, d, QClipData::hasRectClip, QClipData::hasRegionClip, Qt::IntersectClip, Qt::NoClip, Q_ASSERT, qDebug, qrasterpaintengine_dirty_clip(), qrasterpaintengine_state_setNoClip(), QRegion::rectCount(), Qt::ReplaceClip, QClipData::setClipRegion(), state(), and QTransform::TxScale.

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clip() [3/3]

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

overridevirtual

Implements QPaintEngineEx.

Definition at line 1120 of file qpaintengine_raster.cpp.

References base, clipData(), d, QClipData::fixup(), i, QClipData::initialize(), Qt::IntersectClip, Qt::NoClip, qDebug, qrasterpaintengine_dirty_clip(), qrasterpaintengine_state_setNoClip(), qt_mapFillRect(), qt_span_clip(), Qt::ReplaceClip, state(), and QTransform::TxScale.

Referenced by alphaPenBlt(), clip(), clipBoundingRect(), clipData(), clipType(), drawImage(), and drawImage().

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clipBoundingRect()

QRectF QRasterPaintEngine::clipBoundingRect

(

)

const

Returns the bounding rect of the currently set clip.

Definition at line 3490 of file qpaintengine_raster.cpp.

References clip(), and d.

Referenced by QPixmapConvolutionFilter::draw(), drawStaticTextItem(), and drawTextItem().

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clipData()

const QClipData * QRasterPaintEngine::clipData ( ) const

inline

Definition at line 441 of file qpaintengine_raster_p.h.

References QRasterPaintEngineState::clip, clip(), d, and state().

Referenced by clip(), QBlitterPaintEngine::drawCachedGlyphs(), QBlitterPaintEngine::drawPixmap(), and QBlitterPaintEngine::fillRect().

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clipEnabledChanged()

void QRasterPaintEngine::clipEnabledChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 840 of file qpaintengine_raster.cpp.

References QPaintEngine::DirtyClipEnabled, qDebug, and state().

Referenced by QBlitterPaintEngine::clipEnabledChanged().

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clipType()

QRasterPaintEngine::ClipType QRasterPaintEngine::clipType

(

)

const

Returns the type of the clip currently set.

Definition at line 3475 of file qpaintengine_raster.cpp.

References clip(), ComplexClip, d, and RectClip.

Referenced by QPixmapConvolutionFilter::draw().

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compositionModeChanged()

void QRasterPaintEngine::compositionModeChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 765 of file qpaintengine_raster.cpp.

References d, QPaintEngine::DirtyCompositionMode, qDebug, and state().

Referenced by QBlitterPaintEngine::compositionModeChanged().

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coordinateOffset()

QPoint QRasterPaintEngine::coordinateOffset ( ) const

overridevirtual

Reimplemented from QPaintEngine.

Definition at line 3372 of file qpaintengine_raster.cpp.

createState()

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

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 542 of file qpaintengine_raster.cpp.

drawCachedGlyphs()

bool QRasterPaintEngine::drawCachedGlyphs ( int  numGlyphs, const glyph_t *  glyphs, const QFixedPoint *  positions, QFontEngine *  fontEngine  )

virtual

Reimplemented in QBlitterPaintEngine.

Definition at line 2763 of file qpaintengine_raster.cpp.

References alphaPenBlt(), cache, d, QFontEngine::Glyph::data, QPainter::device(), QPaintDevice::devType(), drawImage(), QFontEngine::expectsGammaCorrectedBlending(), QFontEngine::Glyph::format, QFontEngine::Format_A32, QFontEngine::Format_A8, QFontEngine::Format_ARGB, QFontEngine::Format_Mono, QFontEngine::Format_None, QFontEngine::glyphCache(), QFontEngine::glyphData(), QFontEngine::glyphFormat, QFontEngine::glyphMargin(), QFontEngine::hasInternalCaching(), QFontEngine::Glyph::height, i, QPaintEngine::painter(), positions, qFloor(), qRound(), QFontEngine::setGlyphCache(), state(), QFontEngine::subPixelPositionFor(), QFontEngine::supportsVerticalSubPixelPositions(), QPainter::VerticalSubpixelPositioning, QInternal::Widget, QFontEngine::Glyph::width, QFontEngine::Glyph::x, QFixedPoint::y, and QFontEngine::Glyph::y.

Referenced by QBlitterPaintEngine::drawCachedGlyphs(), drawStaticTextItem(), and drawTextItem().

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drawEllipse()

void QRasterPaintEngine::drawEllipse ( const QRectF &  rect )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 3278 of file qpaintengine_raster.cpp.

References d, QPaintEngineEx::drawEllipse(), drawEllipse_midpoint_i(), int_dim, Qt::NoPen, qMax(), qpen_style(), QT_RASTER_COORD_LIMIT, rect, Qt::SolidLine, state(), and QTransform::TxScale.

Referenced by QBlitterPaintEngine::drawEllipse().

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drawImage() [1/2]

void QRasterPaintEngine::drawImage ( const QPointF &  p, const QImage &  img  )

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 2096 of file qpaintengine_raster.cpp.

References clip(), d, drawImage(), fillRect_normalized(), QTextureData::Plain, qBlendFunctions, qDebug, qRound(), state(), QRect::translated(), QTransform::TxTranslate, QPointF::x(), and QPointF::y().

Referenced by drawCachedGlyphs(), drawImage(), QBlitterPaintEngine::drawImage(), drawPixmap(), and drawPixmap().

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drawImage() [2/2]

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

overridevirtual

\reimp

Implements QPaintEngineEx.

Definition at line 2199 of file qpaintengine_raster.cpp.

References QRectF::bottom(), QPixelLayout::bpp, ch, clip(), combineAlpha256(), QPainter::CompositionMode_Source, QPainter::CompositionMode_SourceOver, copy(), cw, d, fillPath(), fillRect(), fillRect_normalized(), QImage::Format_A2BGR30_Premultiplied, QImage::Format_A2RGB30_Premultiplied, QImage::Format_ARGB32_Premultiplied, QImage::Format_ARGB4444_Premultiplied, QImage::Format_ARGB6666_Premultiplied, QImage::Format_ARGB8555_Premultiplied, QImage::Format_ARGB8565_Premultiplied, QImage::Format_RGBA8888_Premultiplied, QRgba64::fromArgb32(), QRect::height(), QRectF::height(), QRect::intersected(), QRect::isNull(), QRectF::left(), multiplyAlpha256(), QImage::NImageFormats, QTextureData::Plain, Q_ASSERT, qAbs(), qBlendFunctions, qCeil(), qDebug, qFloor(), qMemRotateFunctions, qPixelLayouts, qPremultiply(), QRgb, qRound(), qScaleFunctions, qt_mapRect_non_normalizing(), qTransformFunctions, rect, QRectF::right(), QRectF::size(), state(), QRectF::toAlignedRect(), toAlignedRect_positive(), QRectF::top(), QRectF::topRight(), QRectF::toRect(), QRectF::translate(), QTransform::TxRotate, QTransform::TxScale, QTransform::TxTranslate, QRect::width(), QRectF::width(), QRect::x(), QRectF::x(), QRect::y(), and QRectF::y().

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drawLines() [1/2]

void QRasterPaintEngine::drawLines ( const QLine *  line, int  lineCount  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 3175 of file qpaintengine_raster.cpp.

References d, QCosmeticStroker::drawLine(), QPaintEngineEx::drawLines(), i, QLine::p1(), QLine::p2(), qDebug, and state().

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drawLines() [2/2]

void QRasterPaintEngine::drawLines ( const QLineF *  line, int  lineCount  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 3252 of file qpaintengine_raster.cpp.

References d, QCosmeticStroker::drawLine(), QPaintEngineEx::drawLines(), i, line, qDebug, and state().

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drawPixmap() [1/2]

void QRasterPaintEngine::drawPixmap ( const QPointF &  pos, const QPixmap &  pixmap  )

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 1988 of file qpaintengine_raster.cpp.

References QPlatformPixmap::classId(), d, drawImage(), pixmap, pos, qDebug, QPlatformPixmap::RasterClass, state(), and QTransform::TxTranslate.

Referenced by QBlitterPaintEngine::drawPixmap().

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drawPixmap() [2/2]

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

overridevirtual

\reimp

Implements QPaintEngineEx.

Definition at line 2029 of file qpaintengine_raster.cpp.

References QPlatformPixmap::classId(), d, drawImage(), QRect::intersected(), pixmap, qDebug, QPlatformPixmap::RasterClass, QRectF::size(), state(), QRectF::toAlignedRect(), QPlatformPixmap::toImage(), QRect::topLeft(), QRectF::translated(), and QTransform::TxTranslate.

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drawPoints() [1/2]

void QRasterPaintEngine::drawPoints ( const QPoint *  points, int  pointCount  )

overridevirtual

Draws the first pointCount points in the buffer points.

The default implementation converts the first pointCount QPoints in points to QPointFs and calls the floating point version of drawPoints.

Reimplemented from QPaintEngineEx.

Definition at line 3154 of file qpaintengine_raster.cpp.

References d, QCosmeticStroker::drawPoints(), QPaintEngineEx::drawPoints(), and state().

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drawPoints() [2/2]

void QRasterPaintEngine::drawPoints ( const QPointF *  points, int  pointCount  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 3135 of file qpaintengine_raster.cpp.

References d, QCosmeticStroker::drawPoints(), QPaintEngineEx::drawPoints(), and state().

Referenced by QBlitterPaintEngine::drawPoints(), and QBlitterPaintEngine::drawPoints().

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drawPolygon() [1/2]

void QRasterPaintEngine::drawPolygon ( const QPoint *  points, int  pointCount, PolygonDrawMode  mode  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 1924 of file qpaintengine_raster.cpp.

References d, QVarLengthArray< T, Prealloc >::data(), QCosmeticStroker::drawPath(), drawRects(), i, QVectorPath::isRect(), Qt::OddEvenFill, QVectorPath::polygonFlags(), QPaintEngine::PolylineMode, Q_ASSERT, qDebug, state(), QPaintEngineEx::stroke(), Qt::WindingFill, and QPaintEngine::WindingMode.

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drawPolygon() [2/2]

void QRasterPaintEngine::drawPolygon ( const QPointF *  points, int  pointCount, PolygonDrawMode  mode  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 1883 of file qpaintengine_raster.cpp.

References d, QCosmeticStroker::drawPath(), drawRects(), fillPolygon(), i, QVectorPath::isRect(), QVectorPath::polygonFlags(), QPaintEngine::PolylineMode, Q_ASSERT, qDebug, state(), and QPaintEngineEx::stroke().

Referenced by QBlitterPaintEngine::drawPolygon(), and QBlitterPaintEngine::drawPolygon().

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drawRects() [1/2]

void QRasterPaintEngine::drawRects ( const QRect *  rects, int  rectCount  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 1436 of file qpaintengine_raster.cpp.

References d, QCosmeticStroker::drawPath(), fill(), fillRect_normalized(), i, qDebug, rect, state(), stroke(), and QTransform::TxTranslate.

Referenced by drawPolygon(), drawPolygon(), QBlitterPaintEngine::drawRects(), and QBlitterPaintEngine::drawRects().

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drawRects() [2/2]

void QRasterPaintEngine::drawRects ( const QRectF *  rects, int  rectCount  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 1490 of file qpaintengine_raster.cpp.

References d, QCosmeticStroker::drawPath(), QPaintEngineEx::drawRects(), i, QRectF::normalized(), qDebug, rect, state(), and QPaintEngineEx::stroke().

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drawStaticTextItem()

void QRasterPaintEngine::drawStaticTextItem ( QStaticTextItem *  textItem )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 3037 of file qpaintengine_raster.cpp.

References clipBoundingRect(), copy(), drawCachedGlyphs(), QPaintEngineEx::drawStaticTextItem(), QStaticTextItem::fontEngine(), QStaticTextItem::glyphPositions, QStaticTextItem::glyphs, QTransform::inverted(), QTransform::mapRect(), QPainterState::matrix, QStaticTextItem::numGlyphs, shouldDrawCachedGlyphs(), state(), QTransform::TxProject, and visibleGlyphRange().

Referenced by QBlitterPaintEngine::drawStaticTextItem().

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drawTextItem()

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

overridevirtual

\reimp

Reimplemented from QPaintEngine.

Definition at line 3073 of file qpaintengine_raster.cpp.

References QTextItemInt::chars, clipBoundingRect(), QStaticTextItem::color, QVarLengthArray< T, Prealloc >::constData(), d, QByteArray::data(), QVarLengthArray< T, Prealloc >::data(), drawCachedGlyphs(), QPaintEngineEx::drawStaticTextItem(), QPaintEngine::drawTextItem(), QTextItemInt::flags, QStaticTextItem::font, QTextItemInt::fontEngine, QTransform::fromTranslate(), QFontEngine::getGlyphPositions(), QStaticTextItem::glyphPositions, QStaticTextItem::glyphs, QTextItemInt::glyphs, QTransform::inverted(), QTransform::mapRect(), QTextItemInt::num_chars, QStaticTextItem::numGlyphs, QGlyphLayout::numGlyphs, positions, QStaticTextItem::setFontEngine(), shouldDrawCachedGlyphs(), QVLABaseBase::size(), state(), QFontEngine::supportsTransformation(), QStringView::toLatin1(), QTransform::TxProject, and visibleGlyphRange().

Referenced by QBlitterPaintEngine::drawTextItem().

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drawTiledPixmap()

void QRasterPaintEngine::drawTiledPixmap ( const QRectF &  r, const QPixmap &  pm, const QPointF &  sr  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 2449 of file qpaintengine_raster.cpp.

References QPlatformPixmap::classId(), copy(), d, fillPath(), fillRect_normalized(), QRectF::normalized(), pixmap, Q_ASSERT, qAbs(), qDebug, QPlatformPixmap::RasterClass, rect, state(), QTextureData::Tiled, QRectF::toRect(), QRectF::translate(), QTransform::TxScale, QTransform::TxTranslate, QPointF::x(), and QPointF::y().

Referenced by QBlitterPaintEngine::drawTiledPixmap().

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end()

bool QRasterPaintEngine::end ( )

overridevirtual

\reimp

Implements QPaintEngine.

Definition at line 455 of file qpaintengine_raster.cpp.

References d, and qDebug.

Referenced by QBlitterPaintEngine::end().

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fill()

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

overridevirtual

Implements QPaintEngineEx.

Definition at line 1631 of file qpaintengine_raster.cpp.

References d, fillRect_normalized(), Qt::hex(), QRectF::intersects(), QRectF::isValid(), QRectF::normalized(), qDebug, QVectorPath::RectangleHint, state(), and QTransform::TxScale.

Referenced by drawRects(), and QBlitterPaintEngine::fill().

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fillPath()

void QRasterPaintEngine::fillPath ( const QPainterPath &  path, QSpanData *  fillData  )

virtual

Reimplemented in QBlitterPaintEngine.

Definition at line 1331 of file qpaintengine_raster.cpp.

References QSpanData::blend, QRect::bottom(), d, deviceRect, QRect::left(), qDebug, QT_RASTER_COORD_LIMIT, QRect::right(), state(), and QRect::top().

Referenced by drawImage(), drawTiledPixmap(), and QBlitterPaintEngine::fillPath().

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fillPolygon()

void QRasterPaintEngine::fillPolygon ( const QPointF *  points, int  pointCount, PolygonDrawMode  mode  )

virtual

Reimplemented in QBlitterPaintEngine.

Definition at line 1849 of file qpaintengine_raster.cpp.

References QList< T >::constData(), d, fillPolygon(), QVectorPath::polygonFlags(), qWarning, QList< T >::size(), splitPolygon(), and state().

Referenced by drawPolygon(), fillPolygon(), and QBlitterPaintEngine::fillPolygon().

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fillRect() [1/2]

void QRasterPaintEngine::fillRect ( const QRectF &  rect, const QBrush &  brush  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 1740 of file qpaintengine_raster.cpp.

References fillRect(), qDebug, and state().

Referenced by drawImage(), QBlitterPaintEngine::fillRect(), fillRect(), QBlitterPaintEngine::fillRect(), and fillRect().

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fillRect() [2/2]

void QRasterPaintEngine::fillRect ( const QRectF &  rect, const QColor &  color  )

overridevirtual

\reimp

Reimplemented from QPaintEngineEx.

Definition at line 1770 of file qpaintengine_raster.cpp.

References QPainter::CompositionMode_SourceOver, d, fillRect(), qDebug, qPremultiplyWithExtraAlpha(), and state().

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opacityChanged()

void QRasterPaintEngine::opacityChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 747 of file qpaintengine_raster.cpp.

References QPaintEngine::DirtyOpacity, qDebug, and state().

Referenced by QBlitterPaintEngine::opacityChanged().

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penChanged()

void QRasterPaintEngine::penChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 581 of file qpaintengine_raster.cpp.

References QPaintEngine::DirtyPen, QPainterState::pen, Q_ASSERT, qDebug, and state().

Referenced by QBlitterPaintEngine::penChanged().

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rasterBuffer()

QRasterBuffer * QRasterPaintEngine::rasterBuffer

(

)

Definition at line 2527 of file qpaintengine_raster.cpp.

References d.

renderHintsChanged()

void QRasterPaintEngine::renderHintsChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 786 of file qpaintengine_raster.cpp.

References QPainter::Antialiasing, d, QPaintEngine::DirtyBrush, QPaintEngine::DirtyHints, QPaintEngine::DirtyPen, Qt::hex(), QPainter::NonCosmeticBrushPatterns, qDebug, QPainter::SmoothPixmapTransform, and state().

Referenced by QBlitterPaintEngine::renderHintsChanged().

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requiresPretransformedGlyphPositions()

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

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 3338 of file qpaintengine_raster.cpp.

References QPaintEngineEx::requiresPretransformedGlyphPositions(), and shouldDrawCachedGlyphs().

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setState()

void QRasterPaintEngine::setState ( QPainterState *  s )

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 556 of file qpaintengine_raster.cpp.

References d, QPaintEngineEx::setState(), and state().

Referenced by QBlitterPaintEngine::setState().

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shouldDrawCachedGlyphs()

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

overridevirtual

Returns whether glyph caching is supported by the font engine fontEngine with the given transform m applied.

Reimplemented from QPaintEngineEx.

Definition at line 3352 of file qpaintengine_raster.cpp.

References QFontEngine::hasInternalCaching(), QPaintEngineEx::shouldDrawCachedGlyphs(), QFontEngine::supportsTransformation(), and QTransform::TxProject.

Referenced by drawStaticTextItem(), drawTextItem(), and requiresPretransformedGlyphPositions().

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state() [1/2]

QRasterPaintEngineState * QRasterPaintEngine::state ( )

inline

Definition at line 115 of file qpaintengine_raster_p.h.

References QPaintEngineEx::state().

Referenced by alphaPenBlt(), begin(), QBlitterPaintEngine::brushChanged(), brushChanged(), brushOriginChanged(), clip(), clip(), clip(), clipData(), QBlitterPaintEngine::clipEnabledChanged(), clipEnabledChanged(), QBlitterPaintEngine::compositionModeChanged(), compositionModeChanged(), drawCachedGlyphs(), QBlitterPaintEngine::drawCachedGlyphs(), drawEllipse(), drawImage(), drawImage(), drawLines(), drawLines(), drawPixmap(), QBlitterPaintEngine::drawPixmap(), drawPixmap(), drawPoints(), drawPoints(), drawPolygon(), drawPolygon(), QBlitterPaintEngine::drawRects(), drawRects(), QBlitterPaintEngine::drawRects(), drawRects(), drawStaticTextItem(), drawTextItem(), drawTiledPixmap(), fill(), fillPath(), fillPolygon(), QBlitterPaintEngine::fillRect(), fillRect(), fillRect(), QBlitterPaintEngine::opacityChanged(), opacityChanged(), QBlitterPaintEngine::penChanged(), penChanged(), QBlitterPaintEngine::renderHintsChanged(), renderHintsChanged(), setState(), stroke(), QBlitterPaintEngine::transformChanged(), transformChanged(), updateBrush(), updateMatrix(), and updatePen().

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state() [2/2]

const QRasterPaintEngineState * QRasterPaintEngine::state ( ) const

inline

Definition at line 118 of file qpaintengine_raster_p.h.

References QPaintEngineEx::state().

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stroke()

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

overridevirtual

Reimplemented from QPaintEngineEx.

Definition at line 1542 of file qpaintengine_raster.cpp.

References QList< T >::at(), d, QCosmeticStroker::drawPath(), Qt::FlatCap, i, QString::length(), QLineF::length(), line, QVectorPath::LinesHint, QLineF::p1(), QLineF::p2(), qpen_style(), qpen_widthf(), Qt::SolidLine, Qt::SquareCap, state(), and QPaintEngineEx::stroke().

Referenced by drawRects(), and QBlitterPaintEngine::stroke().

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transformChanged()

void QRasterPaintEngine::transformChanged ( )

overridevirtual

Implements QPaintEngineEx.

Definition at line 820 of file qpaintengine_raster.cpp.

References d, QPaintEngine::DirtyTransform, qDebug, and state().

Referenced by QBlitterPaintEngine::transformChanged().

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type()

Type QRasterPaintEngine::type ( ) const

inlineoverridevirtual

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

Implements QPaintEngine.

Definition at line 184 of file qpaintengine_raster_p.h.

References QPaintEngine::Raster.

updateBrush()

void QRasterPaintEngine::updateBrush

(

const QBrush &

brush

)

Definition at line 700 of file qpaintengine_raster.cpp.

References d, QPaintEngine::DirtyTransform, qDebug, state(), and QTransform::TxNone.

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updateMatrix()

void QRasterPaintEngine::updateMatrix

(

const QTransform &

matrix

)

Definition at line 471 of file qpaintengine_raster.cpp.

References qt_scaleForTransform(), and state().

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updatePen()

void QRasterPaintEngine::updatePen

(

const QPen &

pen

)

Definition at line 595 of file qpaintengine_raster.cpp.

References QPen::brush(), Qt::CustomDashLine, d, QPen::dashOffset(), QPen::dashPattern(), QPaintEngine::DirtyTransform, QPen::isCosmetic(), QPen::miterLimit(), Qt::NoPen, qDebug, qpen_capStyle(), qpen_joinStyle(), qpen_style(), qpen_widthf(), QList< T >::size(), Qt::SolidLine, Qt::SquareCap, state(), QBrush::transform(), QTransform::TxNone, and QTransform::type().

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Friends And Related Symbol Documentation

QBlitterPaintEngine

friend class QBlitterPaintEngine

friend

Definition at line 195 of file qpaintengine_raster_p.h.

QBlitterPaintEnginePrivate

friend class QBlitterPaintEnginePrivate

friend

Definition at line 196 of file qpaintengine_raster_p.h.

QSpanData

friend struct QSpanData

friend

Definition at line 194 of file qpaintengine_raster_p.h.

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

• qtbase/src/gui/painting/qpaintengine_raster_p.h
• qtbase/src/gui/painting/qpaintengine_raster.cpp