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/*************************************************************************
** Font.cpp **
** **
** This file is part of dvisvgm -- the DVI to SVG converter **
** Copyright (C) 2005-2009 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/>. **
*************************************************************************/
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <sstream>
#include "Font.h"
#include "FileFinder.h"
#include "Message.h"
#include "TFM.h"
#include "VFReader.h"
#include "macros.h"
using namespace std;
TFMFont::TFMFont (string name, UInt32 cs, double ds, double ss)
: tfm(0), fontname(name), checksum(cs), dsize(ds), ssize(ss)
{
}
TFMFont::~TFMFont () {
delete tfm;
}
const TFM* TFMFont::getTFM () const {
if (!tfm) {
tfm = TFM::createFromFile(fontname.c_str());
if (!tfm)
throw FontException("can't find "+fontname+".tfm");
}
return tfm;
}
double TFMFont::charWidth (int c) const {return getTFM()->getCharWidth(c);}
double TFMFont::charDepth (int c) const {return getTFM()->getCharDepth(c);}
double TFMFont::charHeight (int c) const {return getTFM()->getCharHeight(c);}
double TFMFont::italicCorr (int c) const {return getTFM()->getItalicCorr(c);}
//////////////////////////////////////////////////////////////////////////////
Font* PhysicalFont::create (string name, UInt32 checksum, double dsize, double ssize, PhysicalFont::Type type) {
return new PhysicalFontImpl(name, checksum, dsize, ssize, type);
}
Font* VirtualFont::create (string name, UInt32 checksum, double dsize, double ssize) {
return new VirtualFontImpl(name, checksum, dsize, ssize);
}
//////////////////////////////////////////////////////////////////////////////
PhysicalFontImpl::PhysicalFontImpl (string name, UInt32 cs, double ds, double ss, PhysicalFont::Type type)
: TFMFont(name, cs, ds, ss), filetype(type)
{
}
const char* PhysicalFontImpl::path () const {
string ext;
switch (filetype) {
case PFB: ext = "pfb"; break;
case TTF: ext = "ttf"; break;
case MF : ext = "mf"; break;
}
return FileFinder::lookup(name()+"."+ext);
}
//////////////////////////////////////////////////////////////////////////////
VirtualFontImpl::VirtualFontImpl (string name, UInt32 cs, double ds, double ss)
: TFMFont(name, cs, ds, ss)
{
}
VirtualFontImpl::~VirtualFontImpl () {
// delete dvi vectors received by VFReaderAction
for (map<UInt32, DVIVector*>::iterator i=charDefs.begin(); i != charDefs.end(); ++i)
delete i->second;
}
const char* VirtualFontImpl::path () const {
return FileFinder::lookup(name()+".vf");
}
void VirtualFontImpl::assignChar (UInt32 c, DVIVector *dvi) {
if (dvi) {
if (charDefs.find(c) == charDefs.end())
charDefs[c] = dvi;
else
delete dvi;
}
}
const vector<UInt8>* VirtualFontImpl::getDVI (int c) const {
map<UInt32,DVIVector*>::const_iterator it = charDefs.find(c);
return (it == charDefs.end() ? 0 : it->second);
}
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