/* -*- C++ -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2003-2008

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #ifndef LEMON_EPS_H

 #define LEMON_EPS_H

 #include<string>

 #include<iostream>

 #include<fstream>

 #include<sstream>

 #include<lemon/color.h>

 #include<lemon/dim2.h>

   ///\ingroup eps_io

   ///\file

   ///\brief Simple tool to create \c .eps files

   ///

   ///\author Alpar Juttner

 namespace lemon {

   ///\ingroup eps_io

   ///\brief A simple tool to create \c .eps files

   ///

   ///A simple tool to create \c .eps files

   ///\author Alpar Juttner

   class EpsDrawer

   {

     void defMacros();

     void init(int x1,int y1,int x2,int y2);

     void init(double x1,double y1,double x2,double y2);

     bool local_stream;

   public:

     std::ostream &out;

     ///Node shapes

     ///

     enum NodeShapes { 

       /// = 0

       ///\image html nodeshape_0.png

       ///\image latex nodeshape_0.eps "CIRCLE shape (0)" width=2cm

       CIRCLE=0, 

       /// = 1

       ///\image html nodeshape_1.png

       ///\image latex nodeshape_1.eps "SQUARE shape (1)" width=2cm

       ///

       SQUARE=1, 

       /// = 2

       ///\image html nodeshape_2.png

       ///\image latex nodeshape_2.eps "DIAMOND shape (2)" width=2cm

       ///

       DIAMOND=2,

       /// = 3

       ///\image html nodeshape_3.png

       ///\image latex nodeshape_2.eps "MALE shape (4)" width=2cm

       ///

       ///\warning Not implemented

       MALE=3,

       /// = 4

       ///\image html nodeshape_4.png

       ///\image latex nodeshape_2.eps "FEMALE shape (4)" width=2cm

       ///

       ///\warning Not implemented

       FEMALE=4

     };

     ///\e 

     ///The generated file is put to \c os.

     ///

     /// \c x and \c y determine the upper

     ///right corner of the bounding box. The lower left corner is (0,0).

     EpsDrawer(std::ostream &os,int x,int y);

     ///\e

     ///The generated file is put to \c os.

     ///

     ///(x1,y1) and (x2,y2)

     /// determine the lower left and the upper right corners of

     ///the bounding box, respectively.

     EpsDrawer(std::ostream &os,int x1,int y1,int x2,int y2);

     ///\e

     ///The generated file is put to \c os.

     ///

     ///\c s determines the upper

     ///right corner of the bounding box. The lower left corner is (0,0).

     EpsDrawer(std::ostream &os,dim2::Point<double> s);

     ///\e

     ///The generated file is put to \c os.

     ///

     ///\c a and \c b

     /// determine the lower left and the upper right corners of

     ///the bounding box, respectively.

     EpsDrawer(std::ostream &os,dim2::Point<double> a, dim2::Point<double> b);

     ///\e

     ///The generated picture is put to the file \c name.

     ///

     ///\c x and \c y determine the upper

     ///right corner of the bounding box. The lower left corner is (0,0).

     EpsDrawer(const std::string &name,int x,int y);

     ///\e

     ///The generated picture is put to the file \c name.

     ///

     ///(x1,y1) and (x2,y2)

     /// determine the lower left and the upper right corners of

     ///the bounding box, respectively.

     EpsDrawer(const std::string &name,int x1,int y1,int x2,int y2);

     ///\e

     ///The generated picture is put to the file \c name.

     ///

     ///\c s determines the upper

     ///right corner of the bounding box. The lower left corner is (0,0).

     EpsDrawer(const std::string &name,dim2::Point<double> s);

     ///\e

     ///The generated picture is put to the file \c name.

     ///

     ///\c a and \c b

     /// determine the lower left and the upper right corners of

     ///the bounding box, respectively.

     EpsDrawer(const std::string &name,dim2::Point<double> a, dim2::Point<double> b);

 //     template<class T> EpsDrawer(std::ostream &os,BoundingBox<T> b) 

 //     template<class T> EpsDrawer(std::ostream &os,BoundingBox<T> b);

     ~EpsDrawer();

     ///Save the current graphic state.

     ///This function saves the current coordinate system, and the parameters

     ///set by \ref color(), \ref lineWidth() etc.

     ///The can be \ref restore "restore()"d later.

     ///

     ///The \ref save() - \ref restore() pairs can be nested.

     ///

     EpsDrawer &save();

     ///Restore the saves graphic state.

     EpsDrawer &restore();

     ///Draw a line

     EpsDrawer &line(double x1,double y1,double x2,double y2);

     ///Draw a line from the current point

     EpsDrawer &lineTo(double x1,double y1);

     ///Move the current point

     EpsDrawer &moveTo(double x1,double y1);

     ///Draw a circle

     EpsDrawer &circle(double x,double y, double r);

     ///Draw a line

     template<class T> EpsDrawer &line(dim2::Point<T> p1,dim2::Point<T> p2) 

     {

       return line(p1.x,p1.y,p2.x,p2.y);

     }

     ///Draw a line from the current point

     template<class T> EpsDrawer &lineTo(dim2::Point<T> p)

     {

       return lineTo(p.x,p.y);

     }

     ///Move the current point

     template<class T> EpsDrawer &moveTo(dim2::Point<T> p)

     {

       return moveTo(p.x,p.y);

     }

     ///Draw a circle

     template<class T> EpsDrawer &circle(dim2::Point<T> p, double r)

     {

       return circle(p.x,p.y,r);

     }

     ///Set the font size

     EpsDrawer &fontSize(double si);

     ///Set the fint type

     EpsDrawer &font(std::string );

     ///Sets whether text output is centerized of not

     ///Sets whether text output is centerized of not.

     ///

     ///\warning \ref save() doesn't save this setting.

     ///

     EpsDrawer &centerMode(bool m);

     ///Turn to collect mode.

     ///If you call this function, then the drawing operations like \ref line(),

     ///\ref lineTo(), \ref moveTo() will not take place immediately, but istead

     ///they

     ///are collected. These operations form a \e path.

     ///Then you can \ref stroke(), \ref fill(), \ref eoFill(), \ref clip() or

     ///\ref eoClip() it.

     ///When drawing, you can also use \ref closePath() to - surprise - close the

     ///current path.

     ///

     ///This example draws a red filled diamond.

     ///\code

     ///  EpsDraw ed("diamond.eps",-1,-1,1,1);

     ///  ed.color(1,0,0,).collect().line(0,-1,1,0).lineTo(0,1)

     ///    .lineTo(-1,0).closePath().fill();

     ///\endcode

     EpsDrawer &collect();

     ///Close the current drawing path

     EpsDrawer &closePath();

     ///Stroke (draw) a path

     ///Stroke (draw) a path.

     ///\sa collect()

     ///

     EpsDrawer &stroke();

     ///Fill a path

     ///Fill a path.

     ///\sa collect()

     ///

     EpsDrawer &fill();

     ///Even-odd fill a path

     ///Even-odd fill a path.

     ///\sa collect()

     ///

     EpsDrawer &eoFill();

     ///Set a clipping area.

     ///This function sets a clipping area. After that, the drawing operations

     ///will affect only this area.

     ///\sa collect()

     ///

     EpsDrawer &clip();

     ///Set a clipping area using even-odd rule.

     ///This function sets a clipping area using even-odd rule.

     ///After that, the drawing operations

     ///will affect only this area.

     ///\sa collect()

     ///

     EpsDrawer &eoClip();

     ///Set the line width.

     EpsDrawer &lineWidth(double w);

     ///Set the style of the line ends

     ///\param i It can be 0, 1 or 2

     ///

     EpsDrawer &lineCap(int i);

     ///Set the style of the line joins

     ///\param i It can be 0, 1 or 2

     ///

     EpsDrawer &lineJoin(int i);

     ///Set the cut length of near parallel joining lines.

     EpsDrawer &miterLimit(double w);

     ///Set the drawing color

     EpsDrawer &color(double r, double g, double b);

     ///Set the drawing color

     EpsDrawer &color(Color c)

     {

       return color(c.red(),c.green(),c.blue());

     }

     ///Draw a node shape

     ///Draw a node shape.

     ///

     ///\param t The shape of the drawn object

     ///\param x The \c x coordinate of the node

     ///\param y The \c y coordinate of the node

     ///\param r The size (radius) of the node

     ///\param col Color of the node. The default color is white

     ///\param brd Color of the node border. The default color is black

     EpsDrawer &node(NodeShapes t, double x, double y, double r,

 		    Color col=WHITE, Color brd=BLACK);

     ///Draw a node shape

     ///Draw a node shape.

     ///

     ///\param t The shape of the drawn object

     ///\param pos Position of the node

     ///\param r The size (radius) of the node

     ///\param col Color of the node. The default color is white

     ///\param brd Color of the node border. The default color is black

     template<class T>

     EpsDrawer &node(NodeShapes t, dim2::Point<T> pos, double r,

 		    Color col=WHITE, Color brd=BLACK)

     {

       return node(t,pos.x,pos.y,r,col,brd);

     }

     ///Translate the coordinate system

     EpsDrawer &translate(double x,double y);

     ///Translate the coordinate system

     template<class T> EpsDrawer &translate(dim2::Point<T> p)

     {

       return translate(p.x,p.y);

     }

     ///Rotate the coordinate system

     EpsDrawer &rotate(double r);

     ///Scale the coordinate system

     EpsDrawer &scale(double sx, double sy);

     ///Scale the coordinate system

     EpsDrawer &scale(double s) { return scale(s,s); }

     ///Scale the coordinate system

     template<class T> EpsDrawer &scale(dim2::Point<T> p)

     {

       return scale(p.x,p.y);

     }

     ///\e

     EpsDrawer &flush();

     ///Clear the image

     EpsDrawer &clear();

     ///Print a text at the current point

     EpsDrawer &operator<<(const std::string &s);

     ///Print a text at the current point

     EpsDrawer &operator<<(const char *s);

     ///Print a number at the current point

     EpsDrawer &operator<<(int i);

     ///Print a number at the current point

     EpsDrawer &operator<<(double d);

     ///Print a coordinate at the current point

     template<class T>

     EpsDrawer &operator<<(dim2::Point<T> p) 

     {

       out << "((" << p.x << ',' << p.y <<")) show\n";

       return *this;

     }

   };

 }

 #endif