/* Copyright (C) 2001-2005 Peter Selinger.
   This file is part of psdim. It is free software and it is covered
   by the GNU general public license. See the file COPYING for details. */

/* $Id: main.h,v 1.3 2005/03/31 03:20:13 selinger Exp $ */

#ifndef MAIN_H
#define MAIN_H

/* alignment policies are as follows (hpolicy): 
   0 - coordinate origins are aligned vertically and evenly spaced horizontally
   1 - coordinate origins are aligned vertically. Pages are evenly spaced h.
   2 - page groups are centered vertically, evenly spaced horizontally 
   3 - coordinate origins are aligned vertically. Pages are unevenly spaced h.
   4 - page groups are centered vertically, unevenly spaced horizontally.
*/

struct info_s {
  double w, h;        /* width and height of output page */
  double hmargin, hsep; /* desired (outside) margin and (inside) separation */
  double vmargin, vsep; /* desired (outside) margin and (inside) separation */
  int land;           /* 0 upright, 1 landscape, 2 upside down, 3 seascape */
  int cols, rows;     /* columns, rows */
  int columnmode;     /* page numbers go in columns? */
  int righttoleft;    /* page numbers increase right to left? */
  int bottomtotop;    /* page numbers increase bottom to top? */
  int hpolicy;        /* horizontal alignment policy */
  int vpolicy;        /* vertical alignment policy */
  char *infile;       /* NULL for stdin */
  int quiet;          /* suppress stderr progress info? */
  int color;          /* handle non-white background colors? */
  int shrink;         /* only shrink, never enlarge? */
};
typedef struct info_s info_t;

struct bbox_s {
  int x0, x1;  /* x-min and x-max */
  int y0, y1;  /* y-min and y-max */
};
typedef struct bbox_s bbox_t;

struct pageformat_s {
  char *name;
  double w, h;
};
typedef struct pageformat_s pageformat_t;

/* define a set of error conditions, in the style of errno. */

extern int merrno;  /* for passing error conditions */

#define ME_MEM                 1
#define ME_GSNOTFOUND          2
#define ME_EOF                 3
#define ME_POSTSCRIPT          4

extern info_t info;

int license(FILE *f);
int usage(FILE *f);
double parse_dimension(char *s, char **endptr);
int dopts(int ac, char *av[]);
  
int main(int ac, char *av[]);

#endif /* MAIN_H */