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/*************************************************************************
** TTFWriter.hpp **
** **
** This file is part of dvisvgm -- a fast DVI to SVG converter **
** Copyright (C) 2005-2023 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program is free software; you can redistribute it and/or **
** modify it under the terms of the GNU General Public License as **
** published by the Free Software Foundation; either version 3 of **
** the License, or (at your option) any later version. **
** **
** This program is distributed in the hope that it will be useful, but **
** WITHOUT ANY WARRANTY; without even the implied warranty of **
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
** GNU General Public License for more details. **
** **
** You should have received a copy of the GNU General Public License **
** along with this program; if not, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#pragma once
#include <set>
#include <vector>
#include "CmapTable.hpp"
#include "GlyfTable.hpp"
#include "HeadTable.hpp"
#include "HheaTable.hpp"
#include "HmtxTable.hpp"
#include "LocaTable.hpp"
#include "MaxpTable.hpp"
#include "NameTable.hpp"
#include "OS2Table.hpp"
#include "PostTable.hpp"
#include "VheaTable.hpp"
#include "VmtxTable.hpp"
#include "../GFGlyphTracer.hpp"
#include "../RangeMap.hpp"
class PhysicalFont;
namespace ttf {
class TTFWriter {
public:
TTFWriter (const PhysicalFont &font, const std::set<int> &chars);
bool writeTTF (std::ostream &os);
bool writeWOFF (std::ostream &os);
bool writeWOFF2 (std::ostream &os);
bool writeTTF (const std::string &ttfname);
bool writeWOFF (const std::string &woffname);
bool writeWOFF2 (const std::string &woff2name);
static bool convertTTFToWOFF (std::istream &is, std::ostream &os);
static bool convertTTFToWOFF2 (std::istream &is, std::ostream &os);
static bool convertTTFToWOFF (const std::string &ttfname, const std::string &woffname);
static bool convertTTFToWOFF2 (const std::string &ttfname, const std::string &woff2name);
void setTracerCallback (GFGlyphTracer::Callback &callback) {_tracerCallback = &callback;}
GFGlyphTracer::Callback* getTracerCallback () const {return _tracerCallback;}
const PhysicalFont& getFont () const {return _font;}
const RangeMap& getUnicodeCharMap () const {return _unicodeCharMap;}
int targetUnitsPerEm () const;
double unitsPerEmFactor () const;
int16_t hAdvance (uint16_t c) const;
void updateGlobalBbox (uint32_t c, int16_t xmin, int16_t ymin, int16_t xmax, int16_t ymax);
bool isFixedPitch () const {return _hmtx.isFixedPitch();}
void updateContourInfo (uint16_t maxContours, uint16_t maxPoints) {
_maxp.updateContourInfo(maxPoints, maxContours);
}
void updateGlobalAdvanceWidth (uint16_t w, uint16_t numHMetrics) {_hhea.updateAdvanceWidth(w, numHMetrics);}
void updateGlobalAdvanceHeight (uint16_t h, uint16_t numVMetrics) {
if (_vhea.active())
_vhea.updateAdvanceHeight(h, numVMetrics);
}
void addGlyphOffset (uint32_t offset) {
_loca.addOffset(offset);
if (offset > 0xFFFF)
_head.setLongOffsetFormat();
}
#ifdef TTFDEBUG
static bool CREATE_PS_GLYPH_OUTLINES;
#endif
protected:
std::list<TableBuffer> createTableBuffers ();
private:
const PhysicalFont &_font;
RangeMap _unicodeCharMap; ///< Unicode -> character code
GFGlyphTracer::Callback *_tracerCallback;
CmapTable _cmap; ///< glyph index to character code mapping table
GlyfTable _glyf; ///< glyph data table
HeadTable _head; ///< font header table
HheaTable _hhea; ///< horizontal header table
HmtxTable _hmtx; ///< horizontal metrics table
LocaTable _loca; ///< glyph index to location/offset table
MaxpTable _maxp; ///< maximum profile table
NameTable _name; ///< naming table
OS2Table _os2; ///< OS/2 and Windows specific metrics table
PostTable _post; ///< PostScript information table
VheaTable _vhea; ///< vertical header table
VmtxTable _vmtx; ///< vertical metrics table
// The following vector contains pointers to the TTF table objects declared above.
// If a table t1 contains data that computation depends on data of table t2,
// t1 must be inserted after t2. For example, the loca and head tables require data
// from the glyf table to compute their data, so that glyf must precede loca and head.
std::vector<TTFTable*> _tables;
};
} // namespace ttf
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