juce::LowLevelGraphicsSoftwareRenderer Class Reference

Detailed Description

A lowest-common-denominator implementation of LowLevelGraphicsContext that does all its rendering in memory.

User code is not supposed to create instances of this class directly - do all your rendering via the Graphics class instead.

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

• juce_graphics/contexts/juce_LowLevelGraphicsSoftwareRenderer.h

Inheritance diagram for juce::LowLevelGraphicsSoftwareRenderer:

Public Member Functions
	LowLevelGraphicsSoftwareRenderer (const Image &imageToRenderOnto)
	Creates a context to render into an image.
	LowLevelGraphicsSoftwareRenderer (const Image &imageToRenderOnto, Point< int > origin, const RectangleList< int > &initialClip)
	Creates a context to render into a clipped subsection of an image.
	~LowLevelGraphicsSoftwareRenderer () override
	Destructor.
std::unique_ptr< ImageType >	getPreferredImageTypeForTemporaryImages () const override
	Returns the optimal ImageType for creating temporary images in this GraphicsContext.
bool	isVectorDevice () const override
	Returns true if this device is vector-based, e.g.
Rectangle< int >	getClipBounds () const override
bool	isClipEmpty () const override
void	setOrigin (Point< int > o) override
	Moves the origin to a new position.
void	addTransform (const AffineTransform &t) override
float	getPhysicalPixelScaleFactor () const override
bool	clipRegionIntersects (const Rectangle< int > &r) override
bool	clipToRectangle (const Rectangle< int > &r) override
bool	clipToRectangleList (const RectangleList< int > &r) override
void	excludeClipRectangle (const Rectangle< int > &r) override
void	clipToPath (const Path &path, const AffineTransform &t) override
void	clipToImageAlpha (const Image &im, const AffineTransform &t) override
void	saveState () override
void	restoreState () override
void	beginTransparencyLayer (float opacity) override
void	endTransparencyLayer () override
void	setFill (const FillType &fillType) override
void	setOpacity (float newOpacity) override
void	setInterpolationQuality (Graphics::ResamplingQuality quality) override
void	fillRect (const Rectangle< int > &r, bool replace) override
void	fillRect (const Rectangle< float > &r) override
void	fillRectList (const RectangleList< float > &list) override
void	fillPath (const Path &path, const AffineTransform &t) override
void	drawImage (const Image &im, const AffineTransform &t) override
void	drawLine (const Line< float > &line) override
void	setFont (const Font &newFont) override
const Font &	getFont () override
uint64_t	getFrameId () const override
	Returns an integer that uniquely identifies the current frame.
void	drawGlyphs (Span< const uint16_t > glyphs, Span< const Point< float > > positions, const AffineTransform &t) override
	Uses the current font to draw the provided glyph numbers.
Public Member Functions inherited from juce::LowLevelGraphicsContext
virtual	~LowLevelGraphicsContext ()=default
virtual void	fillAll ()
virtual void	drawRect (const Rectangle< float > &rect, float lineThickness)
virtual void	strokePath (const Path &path, const PathStrokeType &strokeType, const AffineTransform &transform)
virtual void	drawLineWithThickness (const Line< float > &line, float lineThickness)
virtual void	drawRoundedRectangle (const Rectangle< float > &r, float cornerSize, float lineThickness)
virtual void	fillRoundedRectangle (const Rectangle< float > &r, float cornerSize)
virtual void	drawEllipse (const Rectangle< float > &area, float lineThickness)
virtual void	fillEllipse (const Rectangle< float > &area)

Additional Inherited Members
Protected Member Functions inherited from juce::LowLevelGraphicsContext
	LowLevelGraphicsContext ()=default

Constructors and Destructors

LowLevelGraphicsSoftwareRenderer() [1/2]

juce::LowLevelGraphicsSoftwareRenderer::LowLevelGraphicsSoftwareRenderer

(

const Image &

imageToRenderOnto

)

Creates a context to render into an image.

Referenced by drawGlyphs().

LowLevelGraphicsSoftwareRenderer() [2/2]

juce::LowLevelGraphicsSoftwareRenderer::LowLevelGraphicsSoftwareRenderer	(	const Image &	imageToRenderOnto,
		Point< int >	origin,
		const RectangleList< int > &	initialClip )

Creates a context to render into a clipped subsection of an image.

~LowLevelGraphicsSoftwareRenderer()

juce::LowLevelGraphicsSoftwareRenderer::~LowLevelGraphicsSoftwareRenderer ( )

override

Destructor.

Member Functions

getPreferredImageTypeForTemporaryImages()

std::unique_ptr< ImageType > juce::LowLevelGraphicsSoftwareRenderer::getPreferredImageTypeForTemporaryImages ( ) const

inlineoverridevirtual

Returns the optimal ImageType for creating temporary images in this GraphicsContext.

While this typically matches the GraphicsContext's native ImageType, certain scenarios may benefit from using a different format for temporary operations (e.g., for performance, memory efficiency, or specific rendering requirements).

Returns

A unique_ptr to the recommended ImageType instance for temporary images

Implements juce::LowLevelGraphicsContext.

isVectorDevice()

bool juce::LowLevelGraphicsSoftwareRenderer::isVectorDevice ( ) const

overridevirtual

Returns true if this device is vector-based, e.g.

a printer.

Implements juce::LowLevelGraphicsContext.

getClipBounds()

Rectangle< int > juce::LowLevelGraphicsSoftwareRenderer::getClipBounds ( ) const

overridevirtual

Implements juce::LowLevelGraphicsContext.

isClipEmpty()

bool juce::LowLevelGraphicsSoftwareRenderer::isClipEmpty ( ) const

overridevirtual

Implements juce::LowLevelGraphicsContext.

setOrigin()

void juce::LowLevelGraphicsSoftwareRenderer::setOrigin ( Point< int > )

overridevirtual

Moves the origin to a new position.

The coordinates are relative to the current origin, and indicate the new position of (0, 0).

Implements juce::LowLevelGraphicsContext.

addTransform()

void juce::LowLevelGraphicsSoftwareRenderer::addTransform ( const AffineTransform & t )

overridevirtual

Implements juce::LowLevelGraphicsContext.

getPhysicalPixelScaleFactor()

float juce::LowLevelGraphicsSoftwareRenderer::getPhysicalPixelScaleFactor ( ) const

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipRegionIntersects()

bool juce::LowLevelGraphicsSoftwareRenderer::clipRegionIntersects ( const Rectangle< int > & r )

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipToRectangle()

bool juce::LowLevelGraphicsSoftwareRenderer::clipToRectangle ( const Rectangle< int > & r )

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipToRectangleList()

bool juce::LowLevelGraphicsSoftwareRenderer::clipToRectangleList ( const RectangleList< int > & r )

overridevirtual

Implements juce::LowLevelGraphicsContext.

excludeClipRectangle()

void juce::LowLevelGraphicsSoftwareRenderer::excludeClipRectangle ( const Rectangle< int > & r )

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipToPath()

void juce::LowLevelGraphicsSoftwareRenderer::clipToPath ( const Path & path, const AffineTransform & t )

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipToImageAlpha()

void juce::LowLevelGraphicsSoftwareRenderer::clipToImageAlpha ( const Image & im, const AffineTransform & t )

overridevirtual

Implements juce::LowLevelGraphicsContext.

saveState()

void juce::LowLevelGraphicsSoftwareRenderer::saveState ( )

overridevirtual

Implements juce::LowLevelGraphicsContext.

restoreState()

void juce::LowLevelGraphicsSoftwareRenderer::restoreState ( )

overridevirtual

Implements juce::LowLevelGraphicsContext.

beginTransparencyLayer()

void juce::LowLevelGraphicsSoftwareRenderer::beginTransparencyLayer ( float opacity )

overridevirtual

Implements juce::LowLevelGraphicsContext.

endTransparencyLayer()

void juce::LowLevelGraphicsSoftwareRenderer::endTransparencyLayer ( )

overridevirtual

Implements juce::LowLevelGraphicsContext.

setFill()

void juce::LowLevelGraphicsSoftwareRenderer::setFill ( const FillType & fillType )

overridevirtual

Implements juce::LowLevelGraphicsContext.

setOpacity()

void juce::LowLevelGraphicsSoftwareRenderer::setOpacity ( float newOpacity )

overridevirtual

Implements juce::LowLevelGraphicsContext.

setInterpolationQuality()

void juce::LowLevelGraphicsSoftwareRenderer::setInterpolationQuality ( Graphics::ResamplingQuality quality )

overridevirtual

Implements juce::LowLevelGraphicsContext.

fillRect() [1/2]

void juce::LowLevelGraphicsSoftwareRenderer::fillRect ( const Rectangle< int > & r, bool replace )

overridevirtual

Implements juce::LowLevelGraphicsContext.

fillRect() [2/2]

void juce::LowLevelGraphicsSoftwareRenderer::fillRect ( const Rectangle< float > & r )

overridevirtual

Implements juce::LowLevelGraphicsContext.

fillRectList()

void juce::LowLevelGraphicsSoftwareRenderer::fillRectList ( const RectangleList< float > & list )

overridevirtual

Implements juce::LowLevelGraphicsContext.

fillPath()

void juce::LowLevelGraphicsSoftwareRenderer::fillPath ( const Path & path, const AffineTransform & t )

overridevirtual

Implements juce::LowLevelGraphicsContext.

drawImage()

void juce::LowLevelGraphicsSoftwareRenderer::drawImage ( const Image & im, const AffineTransform & t )

overridevirtual

Implements juce::LowLevelGraphicsContext.

drawLine()

void juce::LowLevelGraphicsSoftwareRenderer::drawLine ( const Line< float > & line )

overridevirtual

Implements juce::LowLevelGraphicsContext.

setFont()

void juce::LowLevelGraphicsSoftwareRenderer::setFont ( const Font & newFont )

overridevirtual

Implements juce::LowLevelGraphicsContext.

getFont()

const Font & juce::LowLevelGraphicsSoftwareRenderer::getFont ( )

overridevirtual

Implements juce::LowLevelGraphicsContext.

getFrameId()

uint64_t juce::LowLevelGraphicsSoftwareRenderer::getFrameId ( ) const

overridevirtual

Returns an integer that uniquely identifies the current frame.

Useful for debugging/logging.

Implements juce::LowLevelGraphicsContext.

drawGlyphs()

void juce::LowLevelGraphicsSoftwareRenderer::drawGlyphs ( Span< const uint16_t > , Span< const Point< float > > , const AffineTransform &  )

overridevirtual

Uses the current font to draw the provided glyph numbers.

Implements juce::LowLevelGraphicsContext.

References LowLevelGraphicsSoftwareRenderer().