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/*
 * pst.h -- ePiX's pstricks output format
 *
 * This file is part of ePiX, a C++ library for creating high-quality 
 * figures in LaTeX 
 *
 * Version 1.1.15
 * Last Change: September 07, 2007
 */

/* 
 * Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
 * Andrew D. Hwang <rot 13 nujnat at zngupf dot ubylpebff dot rqh>
 * Department of Mathematics and Computer Science
 * College of the Holy Cross
 * Worcester, MA, 01610-2395, USA
 *
 *
 * ePiX 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.
 *
 * ePiX 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 ePiX; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
#ifndef EPIX_PST
#define EPIX_PST

#include <string>
#include <list>
#include <set>

#include "Color.h"
#include "length.h"

#include "edge_data.h"
#include "format.h"

namespace ePiX {

  class path_state;
  class pen_data;

  class pst : public format {
  public:
    pst();

    pst* clone() const;

    std::string print_fill(const std::list<edge2d>& edges,
			   const pair& offset,
			   const Color& fill,
			   const pen_data& line,
			   const std::string& len) const;

    std::string print_line(const std::list<edge2d>& edges,
			   const pair& offset,
			   const pen_data& line,
			   const pen_data& base,
			   const path_state& style,
			   const std::string& len) const;


    // model, name, densities
    std::string print_color(const std::string&, const std::string&,
			    double, double,
			    double) const;

    std::string print_color(const std::string&, const std::string&,
			    double, double,
			    double, double) const;


    // output file comment
    std::string print_comment(const std::string&) const;

    std::string print_verbatim(const std::string&) const;

    void reset_state() const;

  private:
    mutable Color m_fill;
    mutable Color m_line;
    mutable Color m_base;

    mutable length m_lwidth;
    mutable length m_bwidth;

    // start, end pspicture, set unit and default linewidth
    std::string start_picture(const pair&, const pair&) const;
    std::string end_picture() const;

    std::string set_unitlength(const std::string& len) const;

    std::string usepackages() const;

    // string argument for passing attributes local to this path/loop
    std::string start_open_path(const std::string&) const;
    std::string end_open_path(const std::string&) const;

    std::string start_closed_path(const std::string&) const;
    std::string end_closed_path(const std::string&) const;

    // print declarations to set state of output format
    std::string set_fill_state(const Color&) const;
    std::string set_pen_state(const pen_data&) const;

    // place a LaTeX box of width zero (containing string) at location (pair)
    std::string put_box(const pair&, const std::string&) const;

    std::string print_circle_marker(const pair& here, double diam,
				    bool fill, const Color& color,
				    const std::string& len) const;
  }; // end of class pst
} // end of namespace

#endif /* EPIX_PST */