/***********************************************************************
** FontEmitter.h                                                      **
**                                                                    **
** This file is part of dvisvgm -- the DVI to SVG converter           **
** Copyright (C) 2005-2007 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 2     **
** 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, write to the Free Software        **
** Foundation, Inc., 51 Franklin Street, Fifth Floor,                 **
** Boston, MA 02110-1301, USA.                                        **
***********************************************************************/
// $Id: FontEmitter.h 16 2007-01-05 20:28:01Z mgieseki $

#ifndef FONTEMITTER_H
#define FONTEMITTER_H

#include <set>
#include <string>


struct FontEmitter
{
	virtual ~FontEmitter () {}

	/** Emits all glyphs of the font. */
	virtual int emitFont (std::string id="") const =0;

	/** Emits selected glyphs of the font. */
	virtual int emitFont (const std::set<int> &usedChars, std::string id="") const =0;

	/** Emits a single glyph. */
	virtual bool emitGlyph (int c) const =0;

	/** Template method that should be called if a glyph was emitted. */
//	virtual void glyphEmitted (int c) const {}
};

#endif