MGD::FONT Class Reference

Font definition and implementation. More...

#include <mi32/mgd2.h>

Public Types
enum	FONTTYPE { FONTTYPE_OF, FONTTYPE_TTF }
enum	MODE { MODE_MIUNICODE, MODE_RAWGID, MODE_GID }
Public Member Functions
	FONT ()
virtual	~FONT ()
virtual int	DrawGlyph (MGD::CONTEXT *context, double dx, double dy, double baseangle, const STRINGDATA &string, int n)=0
virtual int	DrawGlyph (MGD::CONTEXT context, double dx, double dy, double baseangle, const MIUNICODE ucstr, MGD::FONT::MODE mode)=0
virtual int	GetFontMetrics (MGD::CONTEXT *context, MGD::FONTINFO &fontinfo)=0
const MIUNICODE *	GetFontName () const
virtual MGD::FONT::FONTTYPE	GetFontType () const =0
virtual int	GetGlyphExtents (MGD::CONTEXT *context, const double &dx, const double &dy, const double &baseangle, MIUNICODE ch, DRECT2D &extents, MGD::FONT::MODE mode)=0
virtual int	GetGlyphMetrics (MGD::CONTEXT *context, MIUNICODE ch, MGD::GLYPHINFO &glyphinfo, MGD::FONT::MODE mode)=0
virtual ERRVALUE	GetGlyphOutline (UINT16 GlyphIndex, REGION2D &region, UINT32 FontFlags)
MIUNICODE	GetInitChar () const
MIUNICODE	GetLastChar () const
MIUNICODE	GetNULLChar () const
MIUNICODE	GetNumGlyphs () const
virtual bool	IsEmbeddable () const =0
virtual double	NextPosition (MGD::CONTEXT context, double retx, double *rety, double baseangle, const STRINGDATA &string, int n, double SpaceExtra=0.0, double GlyphExtra=0.0)=0
virtual int	UCtoGID (MGD::CONTEXT context, const MIUNICODE uc, MGD::STRINGDATA &strdata)=0
Static Public Member Functions
static ERRVALUE	ReadTTF (const MIUNICODE *name, SIMPLE_ARRAY< UINT8 > &data)
Protected Attributes
FILEPATH	m_filename
MISTRING	m_fontname
MIUNICODE	m_InitChar
MIUNICODE	m_LastChar
MIUNICODE	m_NullChar
UINT16	m_NumGlyphs

Detailed Description

Font definition and implementation.

Member Enumeration Documentation

enum MGD::FONT::FONTTYPE

Enumerator:

FONTTYPE_OF
FONTTYPE_TTF

enum MGD::FONT::MODE

Enumerator:

MODE_MIUNICODE	Using Unicode.
MODE_RAWGID	Glyph IDs instead of Unicode.
MODE_GID	Glyph IDs encoded by UCtoGID member function.

Constructor & Destructor Documentation

MGD::FONT::FONT ( )

virtual MGD::FONT::~FONT ( ) [virtual]

Member Function Documentation

virtual int MGD::FONT::DrawGlyph	(	MGD::CONTEXT *	context,
		double	dx,
		double	dy,
		double	baseangle,
		const STRINGDATA &	string,
		int	n
	)			`[pure virtual]`

virtual int MGD::FONT::DrawGlyph	(	MGD::CONTEXT *	context,
		double	dx,
		double	dy,
		double	baseangle,
		const MIUNICODE *	ucstr,
		MGD::FONT::MODE	mode
	)			`[pure virtual]`

virtual int MGD::FONT::GetFontMetrics	(	MGD::CONTEXT *	context,
		MGD::FONTINFO &	fontinfo
	)			`[pure virtual]`

const MIUNICODE* MGD::FONT::GetFontName ( ) const [inline]

virtual MGD::FONT::FONTTYPE MGD::FONT::GetFontType ( ) const [pure virtual]

virtual int MGD::FONT::GetGlyphExtents	(	MGD::CONTEXT *	context,
		const double &	dx,
		const double &	dy,
		const double &	baseangle,
		MIUNICODE	ch,
		DRECT2D &	extents,
		MGD::FONT::MODE	mode
	)			`[pure virtual]`

virtual int MGD::FONT::GetGlyphMetrics	(	MGD::CONTEXT *	context,
		MIUNICODE	ch,
		MGD::GLYPHINFO &	glyphinfo,
		MGD::FONT::MODE	mode
	)			`[pure virtual]`

virtual ERRVALUE MGD::FONT::GetGlyphOutline	(	UINT16	GlyphIndex,
		REGION2D &	region,
		UINT32	FontFlags
	)			`[virtual]`

Get the outline of a glyph.

This only works for TrueType fonts, but the caller won't have access to the TrueType-derived MGD::FONT_TTF. So we make it virtual and let it return an error by default. We could easily implement it for OF fonts too if it was ever needed.

MIUNICODE MGD::FONT::GetInitChar ( ) const [inline]

MIUNICODE MGD::FONT::GetLastChar ( ) const [inline]

MIUNICODE MGD::FONT::GetNULLChar ( ) const [inline]

MIUNICODE MGD::FONT::GetNumGlyphs ( ) const [inline]

virtual bool MGD::FONT::IsEmbeddable ( ) const [pure virtual]

virtual double MGD::FONT::NextPosition	(	MGD::CONTEXT *	context,
		double *	retx,
		double *	rety,
		double	baseangle,
		const STRINGDATA &	string,
		int	n,
		double	SpaceExtra = `0.0`,
		double	GlyphExtra = `0.0`
	)			`[pure virtual]`

Parameters:

SpaceExtra

Extra pixels per space to insert

static ERRVALUE MGD::FONT::ReadTTF	(	const MIUNICODE *	name,
		SIMPLE_ARRAY< UINT8 > &	data
	)			`[static]`

Read a TrueType font into memory.

The "name" parameter is expected to be the filename, minus the path or extention.

The FaceNum parameter is for TrueType Collections (ttc). A ttc file contains multiple ttfs Since TrueType fonts are embeded in resource files on the Macintosh (even in OS X), a simple "filename" isn't all that useful. This function handles reading the whole thing.