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// SPDX-License-Identifier: MIT OR MPL-2.0 OR LGPL-2.1-or-later OR GPL-2.0-or-later
// Copyright 2010, SIL International, All rights reserved.
#pragma once
#include <cstdio>
#include "graphite2/Font.h"
#include "inc/Main.h"
#include "inc/FeatureMap.h"
#include "inc/TtfUtil.h"
#include "inc/Silf.h"
#include "inc/Error.h"
namespace graphite2 {
class Cmap;
class FileFace;
class GlyphCache;
class NameTable;
class json;
class Font;
using TtfUtil::Tag;
// These are the actual tags, as distinct from the consecutive IDs in TtfUtil.h
class Face
{
// Prevent any kind of copying
Face(const Face&);
Face& operator=(const Face&);
public:
class Table;
static float default_glyph_advance(const void* face_ptr, gr_uint16 glyphid);
Face(const void* appFaceHandle/*non-NULL*/, const gr_face_ops & ops);
virtual ~Face();
virtual bool runGraphite(Segment *seg, const Silf *silf) const;
public:
bool readGlyphs(uint32 faceOptions);
bool readGraphite(const Table & silf);
bool readFeatures();
void takeFileFace(FileFace* pFileFace/*takes ownership*/);
const SillMap & theSill() const;
const GlyphCache & glyphs() const;
Cmap & cmap() const;
NameTable * nameTable() const;
void setLogger(FILE *log_file);
json * logger() const throw();
const Silf * chooseSilf(uint32 script) const;
uint16 languageForLocale(const char * locale) const;
// Features
uint16 numFeatures() const;
const FeatureRef * featureById(uint32 id) const;
const FeatureRef * feature(uint16 index) const;
// Glyph related
int32 getGlyphMetric(uint16 gid, uint8 metric) const;
uint16 findPseudo(uint32 uid) const;
// Errors
unsigned int error() const { return m_error; }
bool error(Error e) { m_error = e.error(); return false; }
unsigned int error_context() const { return m_error; }
void error_context(unsigned int errcntxt) { m_errcntxt = errcntxt; }
CLASS_NEW_DELETE;
private:
SillMap m_Sill;
gr_face_ops m_ops;
const void * m_appFaceHandle; // non-NULL
FileFace * m_pFileFace; //owned
mutable GlyphCache * m_pGlyphFaceCache; // owned - never NULL
mutable Cmap * m_cmap; // cmap cache if available
mutable NameTable * m_pNames;
mutable json * m_logger;
unsigned int m_error;
unsigned int m_errcntxt;
protected:
Silf * m_silfs; // silf subtables.
uint16 m_numSilf; // num silf subtables in the silf table
private:
uint16 m_ascent,
m_descent;
#ifdef GRAPHITE2_TELEMETRY
public:
mutable telemetry tele;
#endif
};
inline
const SillMap & Face::theSill() const
{
return m_Sill;
}
inline
uint16 Face::numFeatures() const
{
return m_Sill.theFeatureMap().numFeats();
}
inline
const FeatureRef * Face::featureById(uint32 id) const
{
return m_Sill.theFeatureMap().findFeatureRef(id);
}
inline
const FeatureRef *Face::feature(uint16 index) const
{
return m_Sill.theFeatureMap().feature(index);
}
inline
const GlyphCache & Face::glyphs() const
{
return *m_pGlyphFaceCache;
}
inline
Cmap & Face::cmap() const
{
return *m_cmap;
};
inline
json * Face::logger() const throw()
{
return m_logger;
}
class Face::Table
{
const Face * _f;
mutable const byte * _p;
size_t _sz;
bool _compressed;
Error decompress();
void release();
public:
Table() throw();
Table(const Face & face, const Tag n, uint32 version=0xffffffff) throw();
~Table() throw();
Table(const Table && rhs) throw();
operator const byte * () const throw();
size_t size() const throw();
Table & operator = (const Table && rhs) throw();
};
inline
Face::Table::Table() throw()
: _f(0), _p(0), _sz(0), _compressed(false)
{
}
inline
Face::Table::Table(const Table && rhs) throw()
: _f(rhs._f), _p(rhs._p), _sz(rhs._sz), _compressed(rhs._compressed)
{
rhs._p = 0;
}
inline
Face::Table::~Table() throw()
{
release();
}
inline
Face::Table::operator const byte * () const throw()
{
return _p;
}
inline
size_t Face::Table::size() const throw()
{
return _sz;
}
} // namespace graphite2
struct gr_face : public graphite2::Face {};
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