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/*************************************************************************
** GlyphTracerMessages.hpp **
** **
** This file is part of dvisvgm -- a fast DVI to SVG converter **
** Copyright (C) 2005-2020 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/>. **
*************************************************************************/
#ifndef GLYPHTRACERMESSAGES_HPP
#define GLYPHTRACERMESSAGES_HPP
#include <sstream>
#include "GFGlyphTracer.hpp"
#include "Message.hpp"
class GlyphTracerMessages : public GFGlyphTracer::Callback {
public:
GlyphTracerMessages () =default;
explicit GlyphTracerMessages (bool sfmsg, bool autonl) : _sfmsg(sfmsg), _autonl(autonl) {}
~GlyphTracerMessages () override {
if (_autonl)
Message::mstream() << '\n';
}
void beginChar (uint8_t c) override {
if (!_traced) {
if (!_fname.empty()) {
Message::mstream() << '\n';
// extract font name from file path
std::string fontname = _fname;
size_t pos;
if ((pos = fontname.rfind('/')) != std::string::npos)
fontname = fontname.substr(pos+1);
if ((pos = fontname.rfind('.')) != std::string::npos)
fontname = fontname.substr(0, pos);
Message::mstream(false, Message::MC_STATE)
<< "tracing glyphs of " << fontname << '\n';
}
_traced = true;
}
}
void endChar (uint8_t c) override {
std::ostringstream oss;
oss << '[';
if (isprint(c))
oss << c;
else
oss << '#' << unsigned(c);
oss << ']';
Message::mstream(false, Message::MC_TRACING) << oss.str();
}
void setFont (const std::string &fname) override {
if (_sfmsg && fname != _fname) {
_fname = fname;
_traced = false;
}
}
private:
std::string _fname;
bool _sfmsg=true, _autonl=true;
bool _traced=false; ///< true if a glyph of the current font has already been traced?
};
#endif
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