COpenFontRasterizerContext Class Reference

#include <openfont.h>

class COpenFontRasterizerContext : public CBase

Inherits from

COpenFontRasterizerContext

Public Member Functions
	COpenFontRasterizerContext()
void	EndGlyph()
void	StartGlyph(TOpenFontGlyphData *)
void	WriteGlyphBit(TInt)
void	WriteGlyphByte(TInt)

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Detailed Description

Convenience class from which rasterizer contexts may be derived.

A rasterizer context object may (optionally) be created to provide the link between the rasterizer DLL code supported by the Open Font System, and the rasterizer engine code. A rasterizer context object class should get the requested bitmap from the associated rasterizer engine. It should then convert this into Symbian run-length-encoded format. This class contains convenience functions to make the conversion easier.

Deriving from this class is described in greater detail in the API guide.

Constructor & Destructor Documentation

COpenFontRasterizerContext ( )

COpenFontRasterizerContext

(

)

[inline]

Default C++ constructor.

Member Function Documentation

EndGlyph ( )

void

EndGlyph

(

)

[inline]

Completes writing glyph data.

Use this function to complete writing the glyph bitmap to the buffer. Call it after adding all necessary bits using WriteGlyphBit().

StartGlyph ( TOpenFontGlyphData * )

void

StartGlyph

(

TOpenFontGlyphData *

aGlyphData

)

[inline]

Start writing the glyph data.

Use this function to initialise the buffer to which the glyph bitmap is to be written. Call WriteGlyphBit() to add bits to the buffer.

Parameter	Description
aGlyphData	A pointer to the glyph data.

WriteGlyphBit ( TInt )

void

WriteGlyphBit

(

TInt

aBit

)

[inline]

Writes a bit to the glyph buffer.

Before calling this function you should first call StartGlyph().

Parameter	Description
aBit	The bit to be added to the buffer.

WriteGlyphByte ( TInt )

void

WriteGlyphByte

(

TInt

aByte

)

[inline]

Writes a byte to the glyph buffer.

Before calling this function you should first call StartGlyph().

Parameter	Description
aByte	The byte to be added to the buffer.