/* Low-level Postscript writing procedures */
/* Last edited on 2001-10-11 00:49:23 by stolfi */

#ifndef pswrite_H
#define pswrite_H

#include <stdio.h>

typedef enum { pswrite_Axis_X, pswrite_Axis_Y } pswrite_Axis;

void pswrite_eps_header(
    FILE *psfile, 
    double x_min, double x_max, 
    double y_min, double y_max, 
    char *date
  );
  
void pswrite_ps_header(
    FILE *psfile, 
    double x_page_size, 
    double y_page_size, 
    char *date
  );
  
void pswrite_eps_trailer(FILE *psfile);
  
void pswrite_ps_trailer(FILE *psfile, int n_pages);

void pswrite_begin_page(FILE *psfile, int page_num, char *page_label);

void pswrite_page_headline(
    FILE *psfile, 
    int page_num,
    char *page_label, 
    char *txt
  );

void pswrite_page_footline(
    FILE *psfile, 
    char *txt
  );

void pswrite_set_font(FILE *psfile, char *font, float size);

void pswrite_round_join_and_caps(FILE *psfile);

void pswrite_label(
    FILE *psfile, 
    char *txt,
    double x, double y, 
    double x_align, double y_align, 
    double angle
  );
  
void pswrite_set_draw_color(FILE *psfile, float r, float g, float b);
void pswrite_set_fill_color(FILE *psfile, float r, float g, float b);
void pswrite_set_text_color(FILE *psfile, float r, float g, float b);

void pswrite_set_line_width(FILE *psfile, float width_mm);

void pswrite_set_dash_pattern(FILE *psfile, float pattern[], int n, float skip);

void pswrite_begin_drawing(
    FILE *psfile, 
    double x_min, double x_max, 
    double y_min, double y_max
  );
  
void pswrite_segment(
    FILE *psfile, 
    double xa, double ya, 
    double xb, double yb
  );
  
void pswrite_curve(
    FILE *psfile, 
    double xa, double ya, 
    double xb, double yb,
    double xc, double yc,
    double xd, double yd
  );
  
void pswrite_coord_line(
    FILE *psfile, 
    pswrite_Axis axis,
    double coord
  );
  
void pswrite_solid_dot(FILE *psfile,
    double xc, double yc,
    float relsize, 
    int fill, int draw
  );

void pswrite_filled_dot(
    FILE *psfile, 
    double xc, double yc,
    float relsize, 
    int fill, int draw
  );

void pswrite_end_drawing(FILE *psfile);

void pswrite_arrowhead(
    FILE *psfile, 
    double xt, double yt, 
    double xu, double yu, 
    double xv, double yv
  );
  
void pswrite_rectangle(
    FILE *psfile, 
    double xlo, double xhi, 
    double ylo, double yhi, 
    int fill, int draw
  );
  
void pswrite_triangle(
    FILE *psfile, 
    double xa, double ya,
    double xb, double yb,
    double xc, double yc, 
    int fill, int draw
  );
  
void pswrite_ellipse(
    FILE *psfile,
    double xc, double yc, 
    double xa, double ya,
    double xb, double yb, 
    int fill, int draw
  );
  
void pswrite_lune(
    FILE *psfile,
    double xa, double ya,
    double ra,
    double xb, double yb,
    double rb,
    int fill, int draw
  );
  
void pswrite_slice(
    FILE *psfile,
    double xc, double yc,
    double r,
    double start, double stop,
    int fill, int draw
  );

void pswrite_begin_polygon(FILE *psfile);

void pswrite_polygon_vertex(FILE *psfile, double x, double y);

void pswrite_end_polygon(FILE *psfile, int fill, int draw);

void pswrite_set_grid_size(FILE *psfile, int xn, int yn);

void pswrite_grid_cell(FILE *psfile, int xi, int yi, int fill, int draw);

void pswrite_showpage(FILE *psfile);

void pswrite_end_page(FILE *psfile);

void pswrite_comment(FILE *psfile, char *txt);

#endif