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/*************************************************************************
** Length.h **
** **
** This file is part of dvisvgm -- the DVI to SVG converter **
** Copyright (C) 2005-2015 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 DVISVGM_LENGTH_H
#define DVISVGM_LENGTH_H
#include <string>
#include "MessageException.h"
#ifdef IN
#undef IN
#endif
struct UnitException : MessageException
{
UnitException (const std::string &msg) : MessageException(msg) {}
};
class Length
{
public:
enum Unit {PT, BP, CM, MM, IN, PC};
public:
Length () : _pt(0) {}
Length (double val, Unit unit=PT) {set(val, unit);}
Length (double val, const std::string &unit) {set(val, unit);}
Length (const std::string &len) {set(len);}
void set (double val, Unit unit);
void set (double val, std::string unit);
void set (const std::string &len);
double pt () const {return _pt;}
double in () const {return _pt/72.27;}
double bp () const {return in()*72;}
double cm () const {return in()*2.54;}
double mm () const {return cm()*10;}
double pc () const {return in()*12;}
private:
double _pt; // length in TeX point units
};
#endif
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