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/*************************************************************************
** GFGlyphTracer.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 GFGLYPHTRACER_HPP
#define GFGLYPHTRACER_HPP
#include <fstream>
#include <string>
#include "GFTracer.hpp"
#include "Glyph.hpp"
class GFGlyphTracer : public GFTracer {
public:
struct Callback {
virtual ~Callback () =default;
virtual void setFont (const std::string &fontname) {}
virtual void beginChar (uint8_t c) {}
virtual void endChar (uint8_t c) {}
virtual void emptyChar (uint8_t c) {}
};
public:
GFGlyphTracer () : GFTracer(_ifs, 0) {}
GFGlyphTracer (std::string &fname, double upp, Callback *cb=nullptr);
void reset (std::string &fname, double upp);
void setCallback (Callback *cb) {_callback = cb;}
bool executeChar (uint8_t c) override;
void moveTo (double x, double y) override;
void lineTo (double x, double y) override;
void curveTo (double c1x, double c1y, double c2x, double c2y, double x, double y) override;
void closePath () override;
void endChar (uint32_t c) override;
void setGlyph (Glyph &glyph) {_glyph = &glyph;}
const Glyph& getGlyph () const {return *_glyph;}
private:
std::ifstream _ifs;
Glyph *_glyph = nullptr;
Callback *_callback = nullptr;
};
#endif
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