juce::CoreGraphicsContext Class Reference

#include <juce_CoreGraphicsContext_mac.h>

Inheritance diagram for juce::CoreGraphicsContext:

Collaboration diagram for juce::CoreGraphicsContext:

Public Member Functions
	CoreGraphicsContext (CGContextRef context, float flipHeight)
	~CoreGraphicsContext () override
void	addTransform (const AffineTransform &) override
void	beginTransparencyLayer (float opacity) override
bool	clipRegionIntersects (const Rectangle< int > &) override
void	clipToImageAlpha (const Image &, const AffineTransform &) override
void	clipToPath (const Path &, const AffineTransform &) override
bool	clipToRectangle (const Rectangle< int > &) override
bool	clipToRectangleList (const RectangleList< int > &) override
void	drawEllipse (const Rectangle< float > &area, float lineThickness) override
void	drawGlyphs (Span< const uint16_t >, Span< const Point< float > >, const AffineTransform &) override
	Uses the current font to draw the provided glyph numbers.
void	drawImage (const Image &sourceImage, const AffineTransform &) override
void	drawLine (const Line< float > &) override
void	drawLineWithThickness (const Line< float > &line, float lineThickness) override
virtual void	drawRect (const Rectangle< float > &rect, float lineThickness)
void	drawRoundedRectangle (const Rectangle< float > &r, float cornerSize, float lineThickness) override
void	endTransparencyLayer () override
void	excludeClipRectangle (const Rectangle< int > &) override
void	fillAll () override
void	fillEllipse (const Rectangle< float > &area) override
void	fillPath (const Path &, const AffineTransform &) override
void	fillRect (const Rectangle< float > &) override
void	fillRect (const Rectangle< int > &, bool replaceExistingContents) override
void	fillRectList (const RectangleList< float > &) override
void	fillRoundedRectangle (const Rectangle< float > &r, float cornerSize) override
Rectangle< int >	getClipBounds () const override
const Font &	getFont () override
uint64_t	getFrameId () const override
	Returns an integer that uniquely identifies the current frame.
float	getPhysicalPixelScaleFactor () const override
std::unique_ptr< ImageType >	getPreferredImageTypeForTemporaryImages () const override
	Returns the optimal ImageType for creating temporary images in this GraphicsContext.
bool	isClipEmpty () const override
bool	isVectorDevice () const override
	Returns true if this device is vector-based, e.g.
void	restoreState () override
void	saveState () override
void	setFill (const FillType &) override
void	setFont (const Font &) override
void	setInterpolationQuality (Graphics::ResamplingQuality) override
void	setOpacity (float) override
void	setOrigin (Point< int >) override
	Moves the origin to a new position.
void	strokePath (const Path &path, const PathStrokeType &strokeType, const AffineTransform &transform) override

Private Member Functions
void	applyTransform (const AffineTransform &) const
bool	clipToRectangleListWithoutTest (const RectangleList< float > &)
template<class RectType >
CGRect	convertToCGRectFlipped (RectType r) const noexcept
void	createPath (const Path &, const AffineTransform &) const
void	drawCurrentPath (CGPathDrawingMode mode)
void	drawGradient ()
void	drawImage (const Image &, const AffineTransform &, bool fillEntireClipAsTiles)
void	fillCGRect (const CGRect &, bool replaceExistingContents)
void	flip () const
void	setContextClipToCurrentPath (bool useNonZeroWinding)

Private Attributes
detail::ContextPtr	context
const CGFloat	flipHeight
detail::ColorSpacePtr	greyColourSpace
std::optional< Rectangle< int > >	lastClipRect
detail::ColorSpacePtr	rgbColourSpace
std::unique_ptr< SavedState >	state
OwnedArray< SavedState >	stateStack

Constructor & Destructor Documentation

CoreGraphicsContext()

juce::CoreGraphicsContext::CoreGraphicsContext	(	CGContextRef	context,
		float	flipHeight
	)

~CoreGraphicsContext()

juce::CoreGraphicsContext::~CoreGraphicsContext ( )

override

Member Function Documentation

addTransform()

void juce::CoreGraphicsContext::addTransform ( const AffineTransform &  )

overridevirtual

Implements juce::LowLevelGraphicsContext.

applyTransform()

void juce::CoreGraphicsContext::applyTransform ( const AffineTransform &  ) const

private

beginTransparencyLayer()

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipRegionIntersects()

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipToImageAlpha()

void juce::CoreGraphicsContext::clipToImageAlpha ( const Image &  , const AffineTransform &    )

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipToPath()

void juce::CoreGraphicsContext::clipToPath ( const Path &  , const AffineTransform &    )

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipToRectangle()

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipToRectangleList()

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

clipToRectangleListWithoutTest()

bool juce::CoreGraphicsContext::clipToRectangleListWithoutTest ( const RectangleList< float > &  )

private

convertToCGRectFlipped()

template<class RectType >

CGRect juce::CoreGraphicsContext::convertToCGRectFlipped ( RectType  r ) const

privatenoexcept

createPath()

void juce::CoreGraphicsContext::createPath ( const Path &  , const AffineTransform &    ) const

private

drawCurrentPath()

void juce::CoreGraphicsContext::drawCurrentPath ( CGPathDrawingMode  mode )

private

drawEllipse()

void juce::CoreGraphicsContext::drawEllipse ( const Rectangle< float > &  area, float  lineThickness  )

overridevirtual

Reimplemented from juce::LowLevelGraphicsContext.

drawGlyphs()

void juce::CoreGraphicsContext::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.

drawGradient()

void juce::CoreGraphicsContext::drawGradient ( )

private

drawImage() [1/2]

void juce::CoreGraphicsContext::drawImage ( const Image &  , const AffineTransform &  , bool  fillEntireClipAsTiles  )

private

drawImage() [2/2]

void juce::CoreGraphicsContext::drawImage ( const Image &  sourceImage, const AffineTransform &    )

overridevirtual

Implements juce::LowLevelGraphicsContext.

drawLine()

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

drawLineWithThickness()

void juce::CoreGraphicsContext::drawLineWithThickness ( const Line< float > &  line, float  lineThickness  )

overridevirtual

Reimplemented from juce::LowLevelGraphicsContext.

drawRect()

virtual void juce::LowLevelGraphicsContext::drawRect ( const Rectangle< float > &  rect, float  lineThickness  )

inlinevirtualinherited

Reimplemented in juce::Direct2DGraphicsContext.

References juce::RectangleList< ValueType >::addWithoutMerging().

drawRoundedRectangle()

void juce::CoreGraphicsContext::drawRoundedRectangle ( const Rectangle< float > &  r, float  cornerSize, float  lineThickness  )

overridevirtual

Reimplemented from juce::LowLevelGraphicsContext.

endTransparencyLayer()

void juce::CoreGraphicsContext::endTransparencyLayer ( )

overridevirtual

Implements juce::LowLevelGraphicsContext.

excludeClipRectangle()

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

fillAll()

void juce::CoreGraphicsContext::fillAll ( )

overridevirtual

Reimplemented from juce::LowLevelGraphicsContext.

fillCGRect()

void juce::CoreGraphicsContext::fillCGRect ( const CGRect &  , bool  replaceExistingContents  )

private

fillEllipse()

void juce::CoreGraphicsContext::fillEllipse ( const Rectangle< float > &  area )

overridevirtual

Reimplemented from juce::LowLevelGraphicsContext.

fillPath()

void juce::CoreGraphicsContext::fillPath ( const Path &  , const AffineTransform &    )

overridevirtual

Implements juce::LowLevelGraphicsContext.

fillRect() [1/2]

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

fillRect() [2/2]

void juce::CoreGraphicsContext::fillRect ( const Rectangle< int > &  , bool  replaceExistingContents  )

overridevirtual

Implements juce::LowLevelGraphicsContext.

fillRectList()

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

fillRoundedRectangle()

void juce::CoreGraphicsContext::fillRoundedRectangle ( const Rectangle< float > &  r, float  cornerSize  )

overridevirtual

Reimplemented from juce::LowLevelGraphicsContext.

flip()

void juce::CoreGraphicsContext::flip ( ) const

private

getClipBounds()

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

getFont()

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

overridevirtual

Implements juce::LowLevelGraphicsContext.

getFrameId()

uint64_t juce::CoreGraphicsContext::getFrameId ( ) const

inlineoverridevirtual

Returns an integer that uniquely identifies the current frame.

Useful for debugging/logging.

Implements juce::LowLevelGraphicsContext.

getPhysicalPixelScaleFactor()

float juce::CoreGraphicsContext::getPhysicalPixelScaleFactor ( ) const

overridevirtual

Implements juce::LowLevelGraphicsContext.

getPreferredImageTypeForTemporaryImages()

std::unique_ptr< ImageType > juce::CoreGraphicsContext::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.

isClipEmpty()

bool juce::CoreGraphicsContext::isClipEmpty ( ) const

overridevirtual

Implements juce::LowLevelGraphicsContext.

isVectorDevice()

bool juce::CoreGraphicsContext::isVectorDevice ( ) const

inlineoverridevirtual

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

a printer.

Implements juce::LowLevelGraphicsContext.

restoreState()

void juce::CoreGraphicsContext::restoreState ( )

overridevirtual

Implements juce::LowLevelGraphicsContext.

saveState()

void juce::CoreGraphicsContext::saveState ( )

overridevirtual

Implements juce::LowLevelGraphicsContext.

setContextClipToCurrentPath()

void juce::CoreGraphicsContext::setContextClipToCurrentPath ( bool  useNonZeroWinding )

private

setFill()

void juce::CoreGraphicsContext::setFill ( const FillType &  )

overridevirtual

Implements juce::LowLevelGraphicsContext.

setFont()

void juce::CoreGraphicsContext::setFont ( const Font &  )

overridevirtual

Implements juce::LowLevelGraphicsContext.

setInterpolationQuality()

void juce::CoreGraphicsContext::setInterpolationQuality ( Graphics::ResamplingQuality  )

overridevirtual

Implements juce::LowLevelGraphicsContext.

setOpacity()

void juce::CoreGraphicsContext::setOpacity ( float  )

overridevirtual

Implements juce::LowLevelGraphicsContext.

setOrigin()

void juce::CoreGraphicsContext::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.

strokePath()

void juce::CoreGraphicsContext::strokePath ( const Path &  path, const PathStrokeType &  strokeType, const AffineTransform &  transform  )

overridevirtual

Reimplemented from juce::LowLevelGraphicsContext.

Member Data Documentation

context

detail::ContextPtr juce::CoreGraphicsContext::context

private

flipHeight

const CGFloat juce::CoreGraphicsContext::flipHeight

private

greyColourSpace

detail::ColorSpacePtr juce::CoreGraphicsContext::greyColourSpace

private

lastClipRect

std::optional<Rectangle<int> > juce::CoreGraphicsContext::lastClipRect

mutableprivate

rgbColourSpace

detail::ColorSpacePtr juce::CoreGraphicsContext::rgbColourSpace

private

state

std::unique_ptr<SavedState> juce::CoreGraphicsContext::state

private

stateStack

OwnedArray<SavedState> juce::CoreGraphicsContext::stateStack

private

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

• juce_CoreGraphicsContext_mac.h