JUCE  v5.1.1-3-g1a0b28c73
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Public Member Functions | Protected Member Functions | List of all members
LowLevelGraphicsContext Class Referenceabstract

Interface class for graphics context objects, used internally by the Graphics class. More...

#include <juce_LowLevelGraphicsContext.h>

Inheritance diagram for LowLevelGraphicsContext:
Inheritance graph
[legend]

Public Member Functions

virtual ~LowLevelGraphicsContext ()
 
virtual void addTransform (const AffineTransform &)=0
 
virtual void beginTransparencyLayer (float opacity)=0
 
virtual bool clipRegionIntersects (const Rectangle< int > &)=0
 
virtual void clipToImageAlpha (const Image &, const AffineTransform &)=0
 
virtual void clipToPath (const Path &, const AffineTransform &)=0
 
virtual bool clipToRectangle (const Rectangle< int > &)=0
 
virtual bool clipToRectangleList (const RectangleList< int > &)=0
 
virtual void drawGlyph (int glyphNumber, const AffineTransform &)=0
 
virtual void drawImage (const Image &, const AffineTransform &)=0
 
virtual void drawLine (const Line< float > &)=0
 
virtual bool drawTextLayout (const AttributedString &, const Rectangle< float > &)
 
virtual void endTransparencyLayer ()=0
 
virtual void excludeClipRectangle (const Rectangle< int > &)=0
 
virtual void fillPath (const Path &, const AffineTransform &)=0
 
virtual void fillRect (const Rectangle< int > &, bool replaceExistingContents)=0
 
virtual void fillRect (const Rectangle< float > &)=0
 
virtual void fillRectList (const RectangleList< float > &)=0
 
virtual Rectangle< int > getClipBounds () const =0
 
virtual const Font & getFont ()=0
 
virtual float getPhysicalPixelScaleFactor ()=0
 
virtual bool isClipEmpty () const =0
 
virtual bool isVectorDevice () const =0
 Returns true if this device is vector-based, e.g. More...
 
virtual void restoreState ()=0
 
virtual void saveState ()=0
 
virtual void setFill (const FillType &)=0
 
virtual void setFont (const Font &)=0
 
virtual void setInterpolationQuality (Graphics::ResamplingQuality)=0
 
virtual void setOpacity (float)=0
 
virtual void setOrigin (Point< int >)=0
 Moves the origin to a new position. More...
 

Protected Member Functions

 LowLevelGraphicsContext ()
 

Detailed Description

Interface class for graphics context objects, used internally by the Graphics class.

Users are not supposed to create instances of this class directly - do your drawing via the Graphics object instead.

It's a base class for different types of graphics context, that may perform software-based or OS-accelerated rendering.

E.g. the LowLevelGraphicsSoftwareRenderer renders onto an image in memory, but other subclasses could render directly to a windows HDC, a Quartz context, or an OpenGL context.

Constructor & Destructor Documentation

◆ LowLevelGraphicsContext()

LowLevelGraphicsContext::LowLevelGraphicsContext ( )
protected

◆ ~LowLevelGraphicsContext()

virtual LowLevelGraphicsContext::~LowLevelGraphicsContext ( )
virtual

Member Function Documentation

◆ addTransform()

virtual void LowLevelGraphicsContext::addTransform ( const AffineTransform &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ beginTransparencyLayer()

virtual void LowLevelGraphicsContext::beginTransparencyLayer ( float  opacity)
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ clipRegionIntersects()

virtual bool LowLevelGraphicsContext::clipRegionIntersects ( const Rectangle< int > &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ clipToImageAlpha()

virtual void LowLevelGraphicsContext::clipToImageAlpha ( const Image &  ,
const AffineTransform &   
)
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ clipToPath()

virtual void LowLevelGraphicsContext::clipToPath ( const Path &  ,
const AffineTransform &   
)
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ clipToRectangle()

virtual bool LowLevelGraphicsContext::clipToRectangle ( const Rectangle< int > &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ clipToRectangleList()

virtual bool LowLevelGraphicsContext::clipToRectangleList ( const RectangleList< int > &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ drawGlyph()

virtual void LowLevelGraphicsContext::drawGlyph ( int  glyphNumber,
const AffineTransform &   
)
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ drawImage()

virtual void LowLevelGraphicsContext::drawImage ( const Image &  ,
const AffineTransform &   
)
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ drawLine()

virtual void LowLevelGraphicsContext::drawLine ( const Line< float > &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ drawTextLayout()

virtual bool LowLevelGraphicsContext::drawTextLayout ( const AttributedString &  ,
const Rectangle< float > &   
)
inlinevirtual

Reimplemented in Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ endTransparencyLayer()

virtual void LowLevelGraphicsContext::endTransparencyLayer ( )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ excludeClipRectangle()

virtual void LowLevelGraphicsContext::excludeClipRectangle ( const Rectangle< int > &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ fillPath()

virtual void LowLevelGraphicsContext::fillPath ( const Path &  ,
const AffineTransform &   
)
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ fillRect() [1/2]

virtual void LowLevelGraphicsContext::fillRect ( const Rectangle< int > &  ,
bool  replaceExistingContents 
)
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ fillRect() [2/2]

virtual void LowLevelGraphicsContext::fillRect ( const Rectangle< float > &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ fillRectList()

virtual void LowLevelGraphicsContext::fillRectList ( const RectangleList< float > &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ getClipBounds()

virtual Rectangle<int> LowLevelGraphicsContext::getClipBounds ( ) const
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ getFont()

virtual const Font& LowLevelGraphicsContext::getFont ( )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ getPhysicalPixelScaleFactor()

virtual float LowLevelGraphicsContext::getPhysicalPixelScaleFactor ( )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ isClipEmpty()

virtual bool LowLevelGraphicsContext::isClipEmpty ( ) const
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ isVectorDevice()

virtual bool LowLevelGraphicsContext::isVectorDevice ( ) const
pure virtual

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

a printer.

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ restoreState()

virtual void LowLevelGraphicsContext::restoreState ( )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ saveState()

virtual void LowLevelGraphicsContext::saveState ( )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ setFill()

virtual void LowLevelGraphicsContext::setFill ( const FillType &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ setFont()

virtual void LowLevelGraphicsContext::setFont ( const Font &  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ setInterpolationQuality()

virtual void LowLevelGraphicsContext::setInterpolationQuality ( Graphics::ResamplingQuality  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

◆ setOpacity()

virtual void LowLevelGraphicsContext::setOpacity ( float  )
pure virtual

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

Referenced by RenderingHelpers::SoftwareRendererSavedState::endTransparencyLayer().

◆ setOrigin()

virtual void LowLevelGraphicsContext::setOrigin ( Point< int >  )
pure virtual

Moves the origin to a new position.

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

Implemented in RenderingHelpers::StackBasedLowLevelGraphicsContext< SavedStateType >, RenderingHelpers::StackBasedLowLevelGraphicsContext< RenderingHelpers::SoftwareRendererSavedState >, LowLevelGraphicsPostScriptRenderer, Direct2DLowLevelGraphicsContext, and CoreGraphicsContext.

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