#include <qpainter_p.h>

Collaboration diagram for QPainterPrivate:

Classes
struct	QPaintEngineDestructor

struct	SmallStack

Public Types
enum	DrawOperation { StrokeDraw = 0x1 , FillDraw = 0x2 , StrokeAndFillDraw = 0x3 }

Public Member Functions
	QPainterPrivate (QPainter *painter)

	~QPainterPrivate ()

QPainterDummyState *	fakeState () const

void	updateEmulationSpecifier (QPainterState *s)

void	updateStateImpl (QPainterState *state)

void	updateState (QPainterState *state)

void	updateState (std::unique_ptr< QPainterState > &state)

void	draw_helper (const QPainterPath &path, DrawOperation operation=StrokeAndFillDraw)

void	drawStretchedGradient (const QPainterPath &path, DrawOperation operation)

void	drawOpaqueBackground (const QPainterPath &path, DrawOperation operation)

void	drawTextItem (const QPointF &p, const QTextItem &_ti, QTextEngine *textEngine)

void	drawGlyphs (const QPointF &decorationPosition, const quint32 glyphArray, QFixedPoint positionArray, int glyphCount, QFontEngine *fontEngine, bool overline=false, bool underline=false, bool strikeOut=false)

void	updateMatrix ()

void	updateInvMatrix ()

void	checkEmulation ()

QTransform	viewTransform () const

qreal	effectiveDevicePixelRatio () const

QTransform	hidpiScaleTransform () const

void	detachPainterPrivate (QPainter *q)

void	initFrom (const QPaintDevice *device)

Static Public Member Functions
static QPainterPrivate *	get (QPainter *painter)

static bool	attachPainterPrivate (QPainter q, QPaintDevice pdev)

Public Attributes
QPainter *	q_ptr

QVarLengthArray< QPainterPrivate *, NDPtrs >	d_ptrs

std::unique_ptr< QPainterState >	state

SmallStack< std::unique_ptr< QPainterState > >	savedStates

std::unique_ptr< QPainterDummyState >	dummyState

QTransform	invMatrix

uint	txinv:1

uint	inDestructor: 1

uint	refcount = 1

QPaintDevice *	device = nullptr

QPaintDevice *	original_device = nullptr

QPaintDevice *	helper_device = nullptr

std::unique_ptr< QPaintEngine, QPaintEngineDestructor >	engine

std::unique_ptr< QEmulationPaintEngine >	emulationEngine

QPaintEngineEx *	extended = nullptr

QBrush	colorBrush

Static Public Attributes
static constexpr qsizetype	NDPtrs = 4

Detailed Description

Definition at line 157 of file qpainter_p.h.

Member Enumeration Documentation

◆ DrawOperation

enum QPainterPrivate::DrawOperation

Enumerator
StrokeDraw
FillDraw
StrokeAndFillDraw

Definition at line 185 of file qpainter_p.h.

Constructor & Destructor Documentation

◆ QPainterPrivate()

QPainterPrivate::QPainterPrivate ( QPainter * painter )

explicit

Definition at line 199 of file qpainter.cpp.

◆ ~QPainterPrivate()

QPainterPrivate::~QPainterPrivate ( )

default

Member Function Documentation

◆ attachPainterPrivate()

bool QPainterPrivate::attachPainterPrivate	(	QPainter *	q,
		QPaintDevice *	pdev
	)

static

Definition at line 237 of file qpainter.cpp.

References QPaintEnginePrivate::currentClipDevice, QTransform::fromTranslate(), QPaintDevice::height(), Q_ASSERT, Q_UNUSED, QPaintDevice::redirected(), QPaintEnginePrivate::setSystemTransform(), QPaintDevice::sharedPainter(), sp, QPaintEnginePrivate::systemStateChanged(), and QPaintDevice::width().

Referenced by QPainter::QPainter(), and QPainter::begin().

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◆ checkEmulation()

void QPainterPrivate::checkEmulation ( )

Definition at line 171 of file qpainter.cpp.

References QPaintEngineEx::DoNotEmulate, emulationEngine, extended, QPaintEngineEx::flags(), needsEmulation(), Qt::OpaqueMode, Q_ASSERT, qpen_brush(), QPaintEngineEx::setState(), and state.

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◆ detachPainterPrivate()

void QPainterPrivate::detachPainterPrivate ( QPainter * q )

Definition at line 290 of file qpainter.cpp.

References QVarLengthArray< T, Prealloc >::back(), d_ptrs, emulationEngine, extended, inDestructor, QVarLengthArray< T, Prealloc >::pop_back(), Q_ASSERT, Q_UNUSED, and refcount.

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◆ draw_helper()

void QPainterPrivate::draw_helper	(	const QPainterPath &	path,
		DrawOperation	operation = `StrokeAndFillDraw`
	)

Definition at line 317 of file qpainter.cpp.

References QRectF::adjusted(), QPainter::Antialiasing, QPainterPath::boundingRect(), boundingRect(), QPainter::CompositionMode_SourceAtop, QPainterPathStroker::createStroke(), device, QPaintEngine::DirtyTransform, QPainter::drawLine(), drawOpaqueBackground(), drawStretchedGradient(), QPainter::end(), engine, extended, FillDraw, QPainter::fillRect(), QImage::Format_ARGB32_Premultiplied, QPaintDevice::height(), QRect::height(), helper_device, info, QRectF::intersected(), invMatrix, QPainterPath::isEmpty(), QRectF::isEmpty(), Qt::NoBrush, Qt::NoPen, QPaintEngine::ObjectBoundingModeGradients, Qt::OrderedAlphaDither, Qt::OrderedDither, QPaintEngine::PatternTransform, qAbs(), qEnvironmentVariableIsEmpty(), QGradient_StretchToDevice, QPaintEngine_OpaqueBackground, QPainterPathStroker::setCapStyle(), QPainterPathStroker::setJoinStyle(), QPainterPathStroker::setWidth(), QPainter::SmoothPixmapTransform, state, StrokeDraw, QRectF::toAlignedRect(), QPaintEngineEx::transformChanged(), txinv, QTransform::TxProject, QTransform::TxScale, updateState(), QPaintDevice::width(), QRect::width(), QRect::x(), and QRect::y().

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◆ drawGlyphs()

void QPainterPrivate::drawGlyphs	(	const QPointF &	decorationPosition,
		const quint32 *	glyphArray,
		QFixedPoint *	positionArray,
		int	glyphCount,
		QFontEngine *	fontEngine,
		bool	overline = `false`,
		bool	underline = `false`,
		bool	strikeOut = `false`
	)

Definition at line 5317 of file qpainter.cpp.

References QGlyphLayout::advances, QGlyphLayout::attributes, QStaticTextItem::color, QVarLengthArray< T, Prealloc >::data(), QPaintEngineEx::drawStaticTextItem(), engine, extended, QStaticTextItem::font, QTextItemInt::fontEngine, QStaticTextItem::glyphPositions, QStaticTextItem::glyphs, QGlyphLayout::glyphs, QTextItemInt::glyphs, QGlyphLayout::justifications, QStaticTextItem::numGlyphs, QGlyphLayout::numGlyphs, QGlyphLayout::offsets, positions, qt_draw_decoration_for_glyphs(), QStaticTextItem::setFontEngine(), QVLABaseBase::size(), state, updateState(), and QStaticTextItem::usesRawFont.

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◆ drawOpaqueBackground()

void QPainterPrivate::drawOpaqueBackground	(	const QPainterPath &	path,
		DrawOperation	operation
	)

Definition at line 473 of file qpainter.cpp.

References FillDraw, Qt::NoBrush, Qt::NoPen, Qt::OpaqueMode, state, StrokeDraw, and Qt::TransparentMode.

Referenced by draw_helper().

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◆ drawStretchedGradient()

void QPainterPrivate::drawStretchedGradient	(	const QPainterPath &	path,
		DrawOperation	operation
	)

Definition at line 511 of file qpainter.cpp.

References boundingRect(), QPen::brush(), QPen::capStyle(), coordinateMode(), QPainterPathStroker::createStroke(), engine, FillDraw, QPaintDevice::height(), helper_device, QPen::joinStyle(), QPen::miterLimit(), Qt::NoBrush, Qt::NoPen, QGradient::ObjectBoundingMode, QGradient::ObjectMode, QPaintEngine::PatternTransform, Q_ASSERT, QPen::setBrush(), QPainterPathStroker::setCapStyle(), QPainterPathStroker::setDashPattern(), QPainterPathStroker::setJoinStyle(), QPainterPathStroker::setMiterLimit(), QPainterPathStroker::setWidth(), state, stretchGradientToUserSpace(), QGradient::StretchToDeviceMode, StrokeDraw, QPen::style(), updateState(), QPaintDevice::width(), and QPen::widthF().

Referenced by draw_helper().

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◆ drawTextItem()

void QPainterPrivate::drawTextItem	(	const QPointF &	p,
		const QTextItem &	_ti,
		QTextEngine *	textEngine
	)

Definition at line 6097 of file qpainter.cpp.

References QPainter::Antialiasing, QTextItemInt::ascent, QTextItemInt::charFormat, QTextItemInt::descent, QPaintEngine::DirtyHints, QPaintEngine::drawTextItem(), drawTextItemDecoration(), e, QGlyphLayout::effectiveAdvance(), engine, QFontEngineMulti::engine(), QFontEngineMulti::ensureEngineAt(), extended, QTextItemInt::flags, QTextItemInt::fontEngine, QGlyphLayout::glyphs, QTextItemInt::glyphs, i, QTextItemInt::midItem(), QFontEngine::Multi, Qt::NoPen, QGlyphLayout::numGlyphs, Qt::OpaqueMode, qFuzzyIsNull(), qPrintable, rect, QPaintEngineEx::renderHintsChanged(), QTextItem::RightToLeft, state, QTextItem::text(), QFixed::toReal(), QTransform::TxScale, QTransform::TxShear, QFontEngine::type(), QTextItemInt::underlineStyle, updateState(), and QTextItemInt::width.

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◆ effectiveDevicePixelRatio()

qreal QPainterPrivate::effectiveDevicePixelRatio ( ) const

Definition at line 218 of file qpainter.cpp.

References device, QPaintDevice::devicePixelRatio(), QPaintDevice::devType(), QInternal::Printer, and qMax().

Referenced by hidpiScaleTransform().

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◆ fakeState()

QPainterDummyState * QPainterPrivate::fakeState ( ) const

inline

Definition at line 190 of file qpainter_p.h.

References dummyState.

◆ get()

static QPainterPrivate * QPainterPrivate::get ( QPainter * painter )

inlinestatic

Definition at line 217 of file qpainter_p.h.

References painter.

◆ hidpiScaleTransform()

QTransform QPainterPrivate::hidpiScaleTransform ( ) const

Definition at line 227 of file qpainter.cpp.

References effectiveDevicePixelRatio(), and QTransform::fromScale().

Referenced by updateMatrix().

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◆ initFrom()

void QPainterPrivate::initFrom ( const QPaintDevice * device )

Definition at line 1523 of file qpainter.cpp.

References device, QPaintEngine::DirtyBrush, QPaintEngine::DirtyFont, QPaintEngine::DirtyPen, engine, extended, QPaintDevice::initPainter(), QPaintEngineEx::penChanged(), and qWarning.

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◆ updateEmulationSpecifier()

void QPainterPrivate::updateEmulationSpecifier ( QPainterState * s )

Definition at line 655 of file qpainter.cpp.

References QColor::alpha(), QPaintEngine::AlphaBlend, QPaintEngine::BlendModes, QPaintEngine::BrushStroke, QBrush::color(), QPainter::CompositionMode_Xor, QPaintEngine::ConicalGradientFill, Qt::ConicalGradientPattern, QPaintEngine::ConstantOpacity, coordinateMode(), QPixmap::depth(), QPaintEngine::DirtyBackgroundMode, QPaintEngine::DirtyBrush, QPaintEngine::DirtyHints, QPaintEngine::DirtyOpacity, QPaintEngine::DirtyPen, QPaintEngine::DirtyTransform, engine, QPixmap::hasAlpha(), QImage::hasAlphaChannel(), is_brush_transparent(), is_pen_transparent(), QTransform::isAffine(), QTransform::isIdentity(), QBrush::isOpaque(), QPaintEngine::LinearGradientFill, Qt::LinearGradientPattern, QPaintEngine::MaskedBrush, Qt::NoBrush, Qt::NoPen, QGradient::ObjectBoundingMode, QPaintEngine::ObjectBoundingModeGradients, QGradient::ObjectMode, Qt::OpaqueMode, QPaintEngine::PatternBrush, QPaintEngine::PatternTransform, QPaintEngine::PerspectiveTransform, QPaintEngine::PrimitiveTransform, qbrush_style(), qDebug, QGradient_StretchToDevice, qHasPixmapTexture(), QPaintEngine_OpaqueBackground, qpen_brush(), qpen_style(), qt_isExtendedRadialGradient(), QPaintEngine::RadialGradientFill, Qt::RadialGradientPattern, Qt::SolidPattern, state, QGradient::StretchToDeviceMode, QBrush::style(), QBrush::texture(), QBrush::textureImage(), Qt::TexturePattern, QTransform::TxNone, QTransform::TxTranslate, and xform.

Referenced by updateStateImpl().

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◆ updateInvMatrix()

void QPainterPrivate::updateInvMatrix ( )

Definition at line 646 of file qpainter.cpp.

References invMatrix, Q_ASSERT, state, and txinv.

◆ updateMatrix()

void QPainterPrivate::updateMatrix ( )

Definition at line 626 of file qpainter.cpp.

References QPaintEngine::DirtyTransform, extended, hidpiScaleTransform(), state, QPaintEngineEx::transformChanged(), txinv, and viewTransform().

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◆ updateState() [1/2]

void QPainterPrivate::updateState ( QPainterState * state )

Definition at line 892 of file qpainter.cpp.

References engine, newState(), and updateStateImpl().

Referenced by draw_helper(), drawGlyphs(), drawStretchedGradient(), and drawTextItem().

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◆ updateState() [2/2]

void QPainterPrivate::updateState ( std::unique_ptr< QPainterState > & state )

inline

Definition at line 199 of file qpainter_p.h.

References state, and updateState().

Referenced by updateState().

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◆ updateStateImpl()

void QPainterPrivate::updateStateImpl ( QPainterState * state )

Definition at line 860 of file qpainter.cpp.

References QPaintEngine::AllDirty, QPainterState::changeFlags, QPaintEngine::DirtyBackground, QPaintEngine::DirtyBackgroundMode, engine, newState(), and updateEmulationSpecifier().

Referenced by updateState().

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◆ viewTransform()

QTransform QPainterPrivate::viewTransform ( ) const

Definition at line 207 of file qpainter.cpp.

References state.

Referenced by updateMatrix().

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Member Data Documentation

◆ colorBrush

QBrush QPainterPrivate::colorBrush

Definition at line 244 of file qpainter_p.h.

◆ d_ptrs

QVarLengthArray<QPainterPrivate*, NDPtrs> QPainterPrivate::d_ptrs

Definition at line 169 of file qpainter_p.h.

Referenced by detachPainterPrivate().

◆ device

QPaintDevice* QPainterPrivate::device = nullptr

Definition at line 229 of file qpainter_p.h.

Referenced by draw_helper(), effectiveDevicePixelRatio(), and initFrom().

◆ dummyState

std::unique_ptr<QPainterDummyState> QPainterPrivate::dummyState

mutable

Definition at line 178 of file qpainter_p.h.

Referenced by fakeState().

◆ emulationEngine

std::unique_ptr<QEmulationPaintEngine> QPainterPrivate::emulationEngine

Definition at line 242 of file qpainter_p.h.

Referenced by checkEmulation(), and detachPainterPrivate().

◆ engine

std::unique_ptr<QPaintEngine, QPaintEngineDestructor> QPainterPrivate::engine

Definition at line 240 of file qpainter_p.h.

Referenced by draw_helper(), drawGlyphs(), drawStretchedGradient(), drawTextItem(), initFrom(), updateEmulationSpecifier(), updateState(), and updateStateImpl().

◆ extended

QPaintEngineEx* QPainterPrivate::extended = nullptr

Definition at line 243 of file qpainter_p.h.

Referenced by checkEmulation(), detachPainterPrivate(), draw_helper(), drawGlyphs(), drawTextItem(), initFrom(), and updateMatrix().

◆ helper_device

QPaintDevice* QPainterPrivate::helper_device = nullptr

Definition at line 231 of file qpainter_p.h.

Referenced by draw_helper(), and drawStretchedGradient().

◆ inDestructor

uint QPainterPrivate::inDestructor

Definition at line 182 of file qpainter_p.h.

Referenced by detachPainterPrivate().

◆ invMatrix

QTransform QPainterPrivate::invMatrix

Definition at line 180 of file qpainter_p.h.

Referenced by draw_helper(), and updateInvMatrix().

◆ NDPtrs

constexpr qsizetype QPainterPrivate::NDPtrs = 4

staticconstexpr

Definition at line 168 of file qpainter_p.h.

◆ original_device

QPaintDevice* QPainterPrivate::original_device = nullptr

Definition at line 230 of file qpainter_p.h.

◆ q_ptr

QPainter* QPainterPrivate::q_ptr

Definition at line 164 of file qpainter_p.h.

◆ refcount

uint QPainterPrivate::refcount = 1

Definition at line 183 of file qpainter_p.h.

Referenced by detachPainterPrivate().

◆ savedStates

SmallStack<std::unique_ptr<QPainterState> > QPainterPrivate::savedStates

Definition at line 176 of file qpainter_p.h.

◆ state

std::unique_ptr<QPainterState> QPainterPrivate::state

Definition at line 171 of file qpainter_p.h.

Referenced by checkEmulation(), draw_helper(), drawGlyphs(), drawOpaqueBackground(), drawStretchedGradient(), drawTextItem(), updateEmulationSpecifier(), updateInvMatrix(), updateMatrix(), updateState(), and viewTransform().

◆ txinv

uint QPainterPrivate::txinv

Definition at line 181 of file qpainter_p.h.

Referenced by draw_helper(), updateInvMatrix(), and updateMatrix().

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

qtbase/src/gui/painting/qpainter_p.h
qtbase/src/gui/painting/qpainter.cpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Member Enumeration Documentation

◆ DrawOperation

Constructor & Destructor Documentation

◆ QPainterPrivate()

◆ ~QPainterPrivate()

Member Function Documentation

◆ attachPainterPrivate()

◆ checkEmulation()

◆ detachPainterPrivate()

◆ draw_helper()

◆ drawGlyphs()

◆ drawOpaqueBackground()

◆ drawStretchedGradient()

◆ drawTextItem()

◆ effectiveDevicePixelRatio()

◆ fakeState()

◆ get()

◆ hidpiScaleTransform()

◆ initFrom()

◆ updateEmulationSpecifier()

◆ updateInvMatrix()

◆ updateMatrix()

◆ updateState() [1/2]

◆ updateState() [2/2]

◆ updateStateImpl()

◆ viewTransform()

Member Data Documentation

◆ colorBrush

◆ d_ptrs

◆ device

◆ dummyState

◆ emulationEngine

◆ engine

◆ extended

◆ helper_device

◆ inDestructor

◆ invMatrix

◆ NDPtrs

◆ original_device

◆ q_ptr

◆ refcount

◆ savedStates

◆ state

◆ txinv