Helper class for basic canvas functionality. More...

#include <canvashelper.hxx>

Inheritance diagram for vclcanvas::CanvasHelper:

Public Types
enum	ColorType { LINE_COLOR , FILL_COLOR , TEXT_COLOR , IGNORE_COLOR }

Public Member Functions
	CanvasHelper ()
	Create canvas helper. More...

	CanvasHelper (const CanvasHelper &)=delete
	make noncopyable More...

const CanvasHelper &	operator= (const CanvasHelper &)=delete

void	disposing ()
	Release all references. More...

void	init (css::rendering::XGraphicDevice &rDevice, const OutDevProviderSharedPtr &rOutDev, bool bProtect, bool bHaveAlpha)
	Initialize canvas helper. More...

void	setOutDev (const OutDevProviderSharedPtr &rOutDev, bool bProtect)
	Set primary output device. More...

void	setBackgroundOutDev (const OutDevProviderSharedPtr &rOutDev)
	Set secondary output device. More...

void	clear ()

void	drawLine (const css::rendering::XCanvas *rCanvas, const css::geometry::RealPoint2D &aStartPoint, const css::geometry::RealPoint2D &aEndPoint, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState)

void	drawBezier (const css::rendering::XCanvas *rCanvas, const css::geometry::RealBezierSegment2D &aBezierSegment, const css::geometry::RealPoint2D &aEndPoint, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState)

css::uno::Reference< css::rendering::XCachedPrimitive >	drawPolyPolygon (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XPolyPolygon2D > &xPolyPolygon, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState)

css::uno::Reference< css::rendering::XCachedPrimitive >	strokePolyPolygon (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XPolyPolygon2D > &xPolyPolygon, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, const css::rendering::StrokeAttributes &strokeAttributes)

css::uno::Reference< css::rendering::XCachedPrimitive >	strokeTexturedPolyPolygon (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XPolyPolygon2D > &xPolyPolygon, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, const css::uno::Sequence< css::rendering::Texture > &textures, const css::rendering::StrokeAttributes &strokeAttributes)

css::uno::Reference< css::rendering::XCachedPrimitive >	strokeTextureMappedPolyPolygon (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XPolyPolygon2D > &xPolyPolygon, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, const css::uno::Sequence< css::rendering::Texture > &textures, const css::uno::Reference< css::geometry::XMapping2D > &xMapping, const css::rendering::StrokeAttributes &strokeAttributes)

css::uno::Reference< css::rendering::XPolyPolygon2D >	queryStrokeShapes (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XPolyPolygon2D > &xPolyPolygon, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, const css::rendering::StrokeAttributes &strokeAttributes)

css::uno::Reference< css::rendering::XCachedPrimitive >	fillPolyPolygon (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XPolyPolygon2D > &xPolyPolygon, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState)

css::uno::Reference< css::rendering::XCachedPrimitive >	fillTexturedPolyPolygon (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XPolyPolygon2D > &xPolyPolygon, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, const css::uno::Sequence< css::rendering::Texture > &textures)

css::uno::Reference< css::rendering::XCachedPrimitive >	fillTextureMappedPolyPolygon (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XPolyPolygon2D > &xPolyPolygon, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, const css::uno::Sequence< css::rendering::Texture > &textures, const css::uno::Reference< css::geometry::XMapping2D > &xMapping)

css::uno::Reference< css::rendering::XCanvasFont >	createFont (const css::rendering::XCanvas *rCanvas, const css::rendering::FontRequest &fontRequest, const css::uno::Sequence< css::beans::PropertyValue > &extraFontProperties, const css::geometry::Matrix2D &fontMatrix)

css::uno::Sequence< css::rendering::FontInfo >	queryAvailableFonts (const css::rendering::XCanvas *rCanvas, const css::rendering::FontInfo &aFilter, const css::uno::Sequence< css::beans::PropertyValue > &aFontProperties)

css::uno::Reference< css::rendering::XCachedPrimitive >	drawText (const css::rendering::XCanvas *rCanvas, const css::rendering::StringContext &text, const css::uno::Reference< css::rendering::XCanvasFont > &xFont, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, sal_Int8 textDirection)

css::uno::Reference< css::rendering::XCachedPrimitive >	drawTextLayout (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XTextLayout > &laidOutText, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState)

css::uno::Reference< css::rendering::XCachedPrimitive >	drawBitmap (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XBitmap > &xBitmap, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState)

css::uno::Reference< css::rendering::XCachedPrimitive >	drawBitmapModulated (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XBitmap > &xBitmap, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState)

css::uno::Reference< css::rendering::XGraphicDevice >	getDevice ()

css::geometry::IntegerSize2D	getSize ()

css::uno::Reference< css::rendering::XBitmap >	getScaledBitmap (const css::geometry::RealSize2D &newSize, bool beFast)

css::uno::Sequence< sal_Int8 >	getData (css::rendering::IntegerBitmapLayout &bitmapLayout, const css::geometry::IntegerRectangle2D &rect)

css::uno::Sequence< sal_Int8 >	getPixel (css::rendering::IntegerBitmapLayout &bitmapLayout, const css::geometry::IntegerPoint2D &pos)

css::rendering::IntegerBitmapLayout	getMemoryLayout ()

bool	repaint (const GraphicObjectSharedPtr &rGrf, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, const ::Point &rPt, const ::Size &rSz, const GraphicAttr &rAttr) const
	Repaint a cached bitmap. More...

void	flush () const
	Flush drawing queue. More...

int	setupOutDevState (const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, ColorType eColorType) const

bool	hasAlpha () const

Protected Attributes
css::rendering::XGraphicDevice *	mpDevice
	Phyical output device. More...

OutDevProviderSharedPtr	mpProtectedOutDevProvider
	Rendering to this outdev preserves its state. More...

OutDevProviderSharedPtr	mpOutDevProvider
	Rendering to this outdev does not preserve its state. More...

OutDevProviderSharedPtr	mp2ndOutDevProvider
	Rendering to this outdev does not preserve its state. More...

bool	mbHaveAlpha
	When true, content is able to represent alpha. More...

Private Member Functions
css::uno::Reference< css::rendering::XCachedPrimitive >	implDrawBitmap (const css::rendering::XCanvas *rCanvas, const css::uno::Reference< css::rendering::XBitmap > &xBitmap, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, bool bModulateColors)

bool	setupTextOutput (::Point &o_rOutPos, const css::rendering::ViewState &viewState, const css::rendering::RenderState &renderState, const css::uno::Reference< css::rendering::XCanvasFont > &xFont) const

Detailed Description

Helper class for basic canvas functionality.

Also offers optional backbuffer painting, when providing it with a second OutputDevice to render into.

Definition at line 39 of file canvashelper.hxx.

Member Enumeration Documentation

◆ ColorType

enum vclcanvas::CanvasHelper::ColorType

Enumerator
LINE_COLOR
FILL_COLOR
TEXT_COLOR
IGNORE_COLOR

Definition at line 260 of file canvashelper.hxx.

Constructor & Destructor Documentation

◆ CanvasHelper() [1/2]

vclcanvas::CanvasHelper::CanvasHelper ( )

Create canvas helper.

Definition at line 106 of file canvashelper.cxx.

◆ CanvasHelper() [2/2]

vclcanvas::CanvasHelper::CanvasHelper ( const CanvasHelper & )

delete

make noncopyable

Member Function Documentation

◆ clear()

void vclcanvas::CanvasHelper::clear ( )

Definition at line 151 of file canvashelper.cxx.

References COL_WHITE(), OutputDevice::DrawRect(), OutputDevice::EnableMapMode(), OutputDevice::GetOutputSizePixel(), mp2ndOutDevProvider, mpOutDevProvider, mpProtectedOutDevProvider, OutputDevice::SetAntialiasing(), OutputDevice::SetClipRegion(), OutputDevice::SetDrawMode(), OutputDevice::SetFillColor(), and OutputDevice::SetLineColor().

◆ createFont()

css::uno::Reference< css::rendering::XCanvasFont > vclcanvas::CanvasHelper::createFont	(	const css::rendering::XCanvas *	rCanvas,
		const css::rendering::FontRequest &	fontRequest,
		const css::uno::Sequence< css::beans::PropertyValue > &	extraFontProperties,
		const css::geometry::Matrix2D &	fontMatrix
	)

◆ disposing()

void vclcanvas::CanvasHelper::disposing ( )

Release all references.

Definition at line 112 of file canvashelper.cxx.

References mp2ndOutDevProvider, mpDevice, mpOutDevProvider, and mpProtectedOutDevProvider.

Referenced by vclcanvas::CanvasBitmapHelper::disposing(), and vclcanvas::SpriteCanvasHelper::disposing().

◆ drawBezier()

void vclcanvas::CanvasHelper::drawBezier	(	const css::rendering::XCanvas *	rCanvas,
		const css::geometry::RealBezierSegment2D &	aBezierSegment,
		const css::geometry::RealPoint2D &	aEndPoint,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState
	)

◆ drawBitmap()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::drawBitmap	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XBitmap > &	xBitmap,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState
	)

◆ drawBitmapModulated()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::drawBitmapModulated	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XBitmap > &	xBitmap,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState
	)

◆ drawLine()

void vclcanvas::CanvasHelper::drawLine	(	const css::rendering::XCanvas *	rCanvas,
		const css::geometry::RealPoint2D &	aStartPoint,
		const css::geometry::RealPoint2D &	aEndPoint,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState
	)

◆ drawPolyPolygon()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::drawPolyPolygon	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XPolyPolygon2D > &	xPolyPolygon,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState
	)

◆ drawText()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::drawText	(	const css::rendering::XCanvas *	rCanvas,
		const css::rendering::StringContext &	text,
		const css::uno::Reference< css::rendering::XCanvasFont > &	xFont,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		sal_Int8	textDirection
	)

◆ drawTextLayout()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::drawTextLayout	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XTextLayout > &	laidOutText,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState
	)

◆ fillPolyPolygon()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::fillPolyPolygon	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XPolyPolygon2D > &	xPolyPolygon,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState
	)

◆ fillTexturedPolyPolygon()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::fillTexturedPolyPolygon	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XPolyPolygon2D > &	xPolyPolygon,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		const css::uno::Sequence< css::rendering::Texture > &	textures
	)

◆ fillTextureMappedPolyPolygon()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::fillTextureMappedPolyPolygon	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XPolyPolygon2D > &	xPolyPolygon,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		const css::uno::Sequence< css::rendering::Texture > &	textures,
		const css::uno::Reference< css::geometry::XMapping2D > &	xMapping
	)

◆ flush()

void vclcanvas::CanvasHelper::flush ( ) const

Flush drawing queue.

This only works for Window canvases, and ensures that all pending render operations are flushed to the driver/hardware.

Definition at line 1173 of file canvashelper.cxx.

References mp2ndOutDevProvider, and mpOutDevProvider.

Referenced by vclcanvas::SpriteCanvasHelper::updateScreen().

◆ getData()

css::uno::Sequence< sal_Int8 > vclcanvas::CanvasHelper::getData	(	css::rendering::IntegerBitmapLayout &	bitmapLayout,
		const css::geometry::IntegerRectangle2D &	rect
	)

◆ getDevice()

css::uno::Reference< css::rendering::XGraphicDevice > vclcanvas::CanvasHelper::getDevice ( )

inline

Definition at line 222 of file canvashelper.hxx.

References mpDevice.

◆ getMemoryLayout()

rendering::IntegerBitmapLayout vclcanvas::CanvasHelper::getMemoryLayout ( )

Definition at line 1006 of file canvashelper.cxx.

References getSize(), canvas::tools::getStdColorSpaceWithoutAlpha(), canvas::tools::getStdMemoryLayout(), mbHaveAlpha, and mpOutDevProvider.

◆ getPixel()

css::uno::Sequence< sal_Int8 > vclcanvas::CanvasHelper::getPixel	(	css::rendering::IntegerBitmapLayout &	bitmapLayout,
		const css::geometry::IntegerPoint2D &	pos
	)

◆ getScaledBitmap()

css::uno::Reference< css::rendering::XBitmap > vclcanvas::CanvasHelper::getScaledBitmap	(	const css::geometry::RealSize2D &	newSize,
		bool	beFast
	)

◆ getSize()

geometry::IntegerSize2D vclcanvas::CanvasHelper::getSize ( )

Definition at line 893 of file canvashelper.cxx.

References vcl::unotools::integerSize2DFromSize(), and mpOutDevProvider.

Referenced by getMemoryLayout().

◆ hasAlpha()

bool vclcanvas::CanvasHelper::hasAlpha ( ) const

inline

Definition at line 270 of file canvashelper.hxx.

References mbHaveAlpha.

Referenced by vclcanvas::CanvasBitmapHelper::getMemoryLayout().

◆ implDrawBitmap()

uno::Reference< rendering::XCachedPrimitive > vclcanvas::CanvasHelper::implDrawBitmap	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XBitmap > &	xBitmap,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		bool	bModulateColors
	)

private

Definition at line 649 of file canvashelper.cxx.

References vclcanvas::tools::bitmapExFromXBitmap(), canvas::tools::calcTransformedRectBounds(), basegfx::B2DHomMatrix::decompose(), ENSURE_ARG_OR_THROW, BitmapFilter::Filter(), basegfx::B2DHomMatrix::get(), basegfx::Range2D< typename TYPE, typename TRAITS >::getMinX(), basegfx::Range2D< typename TYPE, typename TRAITS >::getMinY(), BitmapEx::GetSizePixel(), basegfx::Tuple2D< typename TYPE >::getX(), basegfx::Tuple2D< typename TYPE >::getY(), Size::Height(), IGNORE_COLOR, BitmapEx::IsAlpha(), basegfx::B2DHomMatrix::isIdentity(), SkiaHelper::isVCLSkiaEnabled(), canvas::tools::mergeViewAndRenderTransform(), mp2ndOutDevProvider, mpDevice, mpOutDevProvider, mpProtectedOutDevProvider, vcl::unotools::pointFromB2DPoint(), basegfx::B2DHomMatrix::scale(), GraphicAttr::SetAlpha(), GraphicAttr::SetRotation(), setupOutDevState(), basegfx::Tuple2D< typename TYPE >::setX(), basegfx::Tuple2D< typename TYPE >::setY(), vclcanvas::tools::transformBitmap(), canvas::tools::verifyInput(), and Size::Width().

◆ init()

void vclcanvas::CanvasHelper::init	(	css::rendering::XGraphicDevice &	rDevice,
		const OutDevProviderSharedPtr &	rOutDev,
		bool	bProtect,
		bool	bHaveAlpha
	)

Initialize canvas helper.

This method late-initializes the canvas helper, providing it with the necessary device and output objects. Note that the CanvasHelper does not take ownership of the passed rDevice reference, nor does it perform any reference counting. Thus, to prevent the reference counted SpriteCanvas object from deletion, the user of this class is responsible for holding ref-counted references itself!

Parameters

rDevice	Reference device this canvas is associated with
rOutDev	Set primary output device for this canvas. That's where all content is output to.
bProtect	When true, all output operations preserve outdev state. When false, outdev state might change at any time.
bHaveAlpha	When true, hasAlpha() will always return true, otherwise, false.

Referenced by vclcanvas::CanvasBitmapHelper::init(), and vclcanvas::SpriteCanvasHelper::init().

◆ operator=()

const CanvasHelper & vclcanvas::CanvasHelper::operator= ( const CanvasHelper & )

delete

◆ queryAvailableFonts()

css::uno::Sequence< css::rendering::FontInfo > vclcanvas::CanvasHelper::queryAvailableFonts	(	const css::rendering::XCanvas *	rCanvas,
		const css::rendering::FontInfo &	aFilter,
		const css::uno::Sequence< css::beans::PropertyValue > &	aFontProperties
	)

◆ queryStrokeShapes()

css::uno::Reference< css::rendering::XPolyPolygon2D > vclcanvas::CanvasHelper::queryStrokeShapes	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XPolyPolygon2D > &	xPolyPolygon,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		const css::rendering::StrokeAttributes &	strokeAttributes
	)

◆ repaint()

bool vclcanvas::CanvasHelper::repaint	(	const GraphicObjectSharedPtr &	rGrf,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		const ::Point &	rPt,
		const ::Size &	rSz,
		const GraphicAttr &	rAttr
	)		const

Repaint a cached bitmap.

◆ setBackgroundOutDev()

void vclcanvas::CanvasHelper::setBackgroundOutDev ( const OutDevProviderSharedPtr & rOutDev )

Set secondary output device.

Used for sprites, to generate mask bitmap.

Definition at line 144 of file canvashelper.cxx.

References mp2ndOutDevProvider.

◆ setOutDev()

void vclcanvas::CanvasHelper::setOutDev	(	const OutDevProviderSharedPtr &	rOutDev,
		bool	bProtect
	)

Set primary output device.

This changes the primary output device, where rendering is sent to.

Definition at line 133 of file canvashelper.cxx.

References mpOutDevProvider, and mpProtectedOutDevProvider.

◆ setupOutDevState()

int vclcanvas::CanvasHelper::setupOutDevState	(	const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		ColorType	eColorType
	)		const

◆ setupTextOutput()

bool vclcanvas::CanvasHelper::setupTextOutput	(	::Point &	o_rOutPos,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		const css::uno::Reference< css::rendering::XCanvasFont > &	xFont
	)		const

private

Definition at line 1102 of file canvashelper.cxx.

References COL_BLACK(), ENSURE_ARG_OR_THROW, ENSURE_OR_THROW, vclcanvas::CanvasFont::getVCLFont(), mp2ndOutDevProvider, mpOutDevProvider, vcl::Font::SetColor(), vcl::Font::SetFillColor(), OutputDevice::SetFont(), vclcanvas::tools::setupFontTransform(), setupOutDevState(), vcl::unotools::stdColorSpaceSequenceToColor(), and TEXT_COLOR.

◆ strokePolyPolygon()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::strokePolyPolygon	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XPolyPolygon2D > &	xPolyPolygon,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		const css::rendering::StrokeAttributes &	strokeAttributes
	)

◆ strokeTexturedPolyPolygon()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::strokeTexturedPolyPolygon	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XPolyPolygon2D > &	xPolyPolygon,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		const css::uno::Sequence< css::rendering::Texture > &	textures,
		const css::rendering::StrokeAttributes &	strokeAttributes
	)

◆ strokeTextureMappedPolyPolygon()

css::uno::Reference< css::rendering::XCachedPrimitive > vclcanvas::CanvasHelper::strokeTextureMappedPolyPolygon	(	const css::rendering::XCanvas *	rCanvas,
		const css::uno::Reference< css::rendering::XPolyPolygon2D > &	xPolyPolygon,
		const css::rendering::ViewState &	viewState,
		const css::rendering::RenderState &	renderState,
		const css::uno::Sequence< css::rendering::Texture > &	textures,
		const css::uno::Reference< css::geometry::XMapping2D > &	xMapping,
		const css::rendering::StrokeAttributes &	strokeAttributes
	)

Member Data Documentation

◆ mbHaveAlpha

bool vclcanvas::CanvasHelper::mbHaveAlpha

protected

When true, content is able to represent alpha.

Definition at line 290 of file canvashelper.hxx.

Referenced by getMemoryLayout(), and hasAlpha().

◆ mp2ndOutDevProvider

OutDevProviderSharedPtr vclcanvas::CanvasHelper::mp2ndOutDevProvider

protected

Rendering to this outdev does not preserve its state.

Definition at line 287 of file canvashelper.hxx.

Referenced by clear(), disposing(), flush(), implDrawBitmap(), setBackgroundOutDev(), setupOutDevState(), and setupTextOutput().

◆ mpDevice

css::rendering::XGraphicDevice* vclcanvas::CanvasHelper::mpDevice

protected

Phyical output device.

Deliberately not a refcounted reference, because of potential circular references for spritecanvas.

Definition at line 278 of file canvashelper.hxx.

Referenced by disposing(), getDevice(), vclcanvas::CanvasBitmapHelper::getScaledBitmap(), implDrawBitmap(), and setupOutDevState().

◆ mpOutDevProvider

OutDevProviderSharedPtr vclcanvas::CanvasHelper::mpOutDevProvider

protected

Rendering to this outdev does not preserve its state.

Definition at line 284 of file canvashelper.hxx.

Referenced by clear(), disposing(), flush(), getMemoryLayout(), vclcanvas::CanvasBitmapHelper::getMemoryLayout(), getSize(), implDrawBitmap(), setOutDev(), setupOutDevState(), and setupTextOutput().

◆ mpProtectedOutDevProvider

OutDevProviderSharedPtr vclcanvas::CanvasHelper::mpProtectedOutDevProvider

protected

Rendering to this outdev preserves its state.

Definition at line 281 of file canvashelper.hxx.

Referenced by clear(), disposing(), implDrawBitmap(), and setOutDev().

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

Public Types

Public Member Functions

Protected Attributes

Private Member Functions

Detailed Description

Member Enumeration Documentation

◆ ColorType

Constructor & Destructor Documentation

◆ CanvasHelper() [1/2]

◆ CanvasHelper() [2/2]

Member Function Documentation

◆ clear()

◆ createFont()

◆ disposing()

◆ drawBezier()

◆ drawBitmap()

◆ drawBitmapModulated()

◆ drawLine()

◆ drawPolyPolygon()

◆ drawText()

◆ drawTextLayout()

◆ fillPolyPolygon()

◆ fillTexturedPolyPolygon()

◆ fillTextureMappedPolyPolygon()

◆ flush()

◆ getData()

◆ getDevice()

◆ getMemoryLayout()

◆ getPixel()

◆ getScaledBitmap()

◆ getSize()

◆ hasAlpha()

◆ implDrawBitmap()

◆ init()

◆ operator=()

◆ queryAvailableFonts()

◆ queryStrokeShapes()

◆ repaint()

◆ setBackgroundOutDev()

◆ setOutDev()

◆ setupOutDevState()

◆ setupTextOutput()

◆ strokePolyPolygon()

◆ strokeTexturedPolyPolygon()

◆ strokeTextureMappedPolyPolygon()

Member Data Documentation

◆ mbHaveAlpha

◆ mp2ndOutDevProvider

◆ mpDevice

◆ mpOutDevProvider

◆ mpProtectedOutDevProvider