PsFile.h

#ifndef __PSFILE_H
#define __PSFILE_H

#include "Model.h"
#include <iostream>
#include <fstream>
#include <string>
#include <stdexcept>

class PSFile
{
        std::string   nom;
        std::ofstream psfile;
        
        double hmin, hmax;
        double vmin, vmax;
        double xmin, xmax, xscale;
        double ymin, ymax, yscale;      
        
        protected:
        
        void aux_rectangle(
    double xlo, double xhi,
    double ylo, double yhi,
    double gray,
    char *op
  );
  
        void aux_polygon(
    double x[], double y[],
    int npoints,
    double gray,
    char *op
  );

        void aux_circle(
    double xc, double yc, double radius,
    double gray,
    char *op
  );
  
        void aux_lune(
    double xc, double yc, double radius, double tilt,
    double gray,
    char *op
  );
  
        void define_procs();
        void define_caption_procs();

        void save_scales(
    double xmin, double xmax,
    double ymin, double ymax,
    double hmin, double hmax,
    double vmin, double vmax
  );
  
        void setup_page_state( int xn, int yn);
        void setup_caption_data();
        void aux_end_page();

        public:
                
                PSFile() {};
                PSFile(const std::string& _nom) : nom(_nom) 
                {
                        psfile.open(nom.c_str());
                        if(!psfile.is_open())
                         throw runtime_error("PSFile::PSFile() : I/O Error");
                begin_document ();
                begin_page(1,40,320,0,640, 20,300,750,750, 16 ,1);
                }
                
                ~PSFile()
                {
                end_page();
                end_document(1);                
                        psfile.close();
                }
                
                void close() {psfile.close();};
                
                void begin_figure (
                double xmin, double xmax,
                double ymin, double ymax,

                double hmin, double hmax,
                double vmin, double vmax,

                int xn, int yn
        );

                void end_figure ();

                void begin_document ();

                void begin_page(
                int page,
                double xmin, double xmax,
                double ymin, double ymax,
                
                    double hmin, double hmax,           
                double vmin, double vmax,

                int xn, int yn
                );

                void end_page();

                void end_document (int npages);

                void begin_section (char *title);

                void end_section ();

                void set_pen (
        double gray,
        double width,
        double dashlength,
        double dashspace
        );

                void draw_segment(
        double xa, double ya,
        double xb, double yb
        );
        
                void draw_curve(
        double xa, double ya,
        double xb, double yb,
        double xc, double yc,
        double xd, double yd
        );
        
                void draw_rectangle(
        double xlo, double xhi,
        double ylo, double yhi
        );

                void fill_rectangle(
        double xlo, double xhi,
        double ylo, double yhi,
        double gray
        );

                void fill_and_draw_rectangle(
        double xlo, double xhi,
        double ylo, double yhi,
        double gray
        );

                void fill_circle(
        double xc, double yc, double radius,
        double gray
        );
        
                void draw_circle(
        double xc, double yc, double radius
        );

                void fill_and_draw_circle(
            double xc, double yc, double radius,
            double gray
          );

                void fill_and_draw_lune(
        double xc, double yc, double radius, double tilt,
        double gray
        );
  
                void fill_polygon(
        double x[], double y[],
        int n,
        double gray
        );

                void draw_polygon(
        double x[], double y[],
                int n
        );

                void fill_and_draw_polygon(
        double x[], double y[],
        int n,
        double gray
        );

                void fill_triangle(
        double xa, double ya,
        double xb, double yb,
        double xc, double yc,
        double gray
        );

                void fill_grid_cell(int xi, int yi, double gray);

                void draw_coord_line (char axis, double coord);

                void draw_grid_lines();

        void set_label_font(char *font, float size);

                void put_label(
        char *text, 
        double x, double y, 
        float xalign, float yalign
        );
        
                void draw_frame ();


                void add_caption(char *txt);


                void put_text(char *text, char *newline);
                
                PSFile& operator<<(const std::string& str)
                {
                        add_caption(const_cast<char*>(str.c_str()));
                        return (*this);
                }
                
                PSFile& operator<<(const Model& m);             
};

#endif

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