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/*
* ps.h -- Include file for PostScript routines.
* Copyright (C) 1992 Timothy O. Theisen
* Copyright (C) 2004 Jose E. Marchesi
*
* This program 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.
*
* This program 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 GNU gv; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA
*
* Author: Tim Theisen Systems Programmer
* Internet: tim@cs.wisc.edu Department of Computer Sciences
* UUCP: uwvax!tim University of Wisconsin-Madison
* Phone: (608)262-0438 1210 West Dayton Street
* FAX: (608)262-9777 Madison, WI 53706
*/
#ifndef PS_H
#define PS_H
#include <libspectre/spectre-macros.h>
#include <stdio.h>
SPECTRE_BEGIN_DECLS
#ifndef NeedFunctionPrototypes
#if defined(FUNCPROTO) || defined(__STDC__) || defined(__cplusplus) || defined(c_plusplus)
#define NeedFunctionPrototypes 1
#else
#define NeedFunctionPrototypes 0
#endif /* __STDC__ */
#endif /* NeedFunctionPrototypes */
/* Constants used to index into the bounding box array. */
#define LLX 0
#define LLY 1
#define URX 2
#define URY 3
/* Constants used to store keywords that are scanned. */
/* NONE is not a keyword, it tells when a field was not set */
/*
enum {ATEND = -1, NONE = 0, PORTRAIT, LANDSCAPE, ASCEND, DESCEND, SPECIAL};
*/
#define ATEND (-1)
#define NONE 0
#define PORTRAIT 1
#define LANDSCAPE 2
#define SEASCAPE 3
#define UPSIDEDOWN 4
#define ASCEND 5
#define DESCEND 6
#define SPECIAL 7
#define AUTOMATIC 8
#define PSLINELENGTH 257 /* 255 characters + 1 newline + 1 NULL */
/* rjl: DOS binary EPS header */
#define PS_DWORD unsigned long/* must be 32 bits unsigned */
#define PS_WORD unsigned short/* must be 16 bits unsigned */
typedef struct tagDOSEPS {
unsigned char id[4];
PS_DWORD ps_begin;
PS_DWORD ps_length;
PS_DWORD mf_begin;
PS_DWORD mf_length;
PS_DWORD tiff_begin;
PS_DWORD tiff_length;
PS_WORD checksum;
} DOSEPS;
/*##############################################
media
##############################################*/
typedef struct documentmedia {
char *name;
int width;
int height;
} MediaStruct, *Media;
typedef const struct documentmedia *ConstMedia;
typedef struct document {
unsigned int ref_count;
#ifdef GV_CODE
int structured; /* toc will be useful */
int labels_useful; /* page labels are distinguishable, hence useful */
#endif
char *format; /* Postscript format */
char *filename; /* Document filename */
int epsf; /* Encapsulated PostScript flag. */
char *title; /* Title of document. */
char *date; /* Creation date. */
char *creator; /* Program that created the file */
char *fortext;
char *languagelevel;
int pageorder; /* ASCEND, DESCEND, SPECIAL */
long beginheader, endheader; /* offsets into file */
unsigned int lenheader;
long beginpreview, endpreview;
unsigned int lenpreview;
long begindefaults, enddefaults;
unsigned int lendefaults;
long beginprolog, endprolog;
unsigned int lenprolog;
long beginsetup, endsetup;
unsigned int lensetup;
long begintrailer, endtrailer;
unsigned int lentrailer;
int boundingbox[4];
int default_page_boundingbox[4];
int orientation; /* PORTRAIT, LANDSCAPE */
int default_page_orientation; /* PORTRAIT, LANDSCAPE */
unsigned int nummedia;
struct documentmedia *media;
ConstMedia default_page_media;
DOSEPS *doseps;
unsigned int numpages;
struct page *pages;
} *Document;
struct page {
char *label;
int boundingbox[4];
const struct documentmedia *media;
int orientation; /* PORTRAIT, LANDSCAPE */
long begin, end; /* offsets into file */
unsigned int len;
};
/* scans a PostScript file and return a pointer to the document
structure. Returns NULL if file does not Conform to commenting
conventions . */
#define SCANSTYLE_NORMAL 0
#define SCANSTYLE_IGNORE_EOF (1<<0)
#define SCANSTYLE_IGNORE_DSC (1<<1)
Document psscan (
#if NeedFunctionPrototypes
FILE *,
const char *,
int /* scanstyle */
#endif
);
void psdocdestroy (
#if NeedFunctionPrototypes
struct document *
#endif
);
Document psdocreference (
#if NeedFunctionPrototypes
struct document *
#endif
);
extern void pscopydoc (
#if NeedFunctionPrototypes
FILE *,
char *,
Document,
char *
#endif
);
int psgetpagebbox (
#if NeedFunctionPrototypes
const struct document *,
int,
int *,
int *,
int *,
int *
#endif
);
void psgetpagebox (
#if NeedFunctionPrototypes
const struct document *,
int,
int *,
int *,
int *,
int *
#endif
);
void pscopy (
#if NeedFunctionPrototypes
FILE *,
FILE *,
Document,
long,
long
#endif
);
void pscopyheaders (
#if NeedFunctionPrototypes
FILE *,
FILE *,
Document
#endif
);
void pscopypage (
#if NeedFunctionPrototypes
FILE *,
FILE *,
Document,
unsigned int,
unsigned int
#endif
);
void pscopytrailer (
#if NeedFunctionPrototypes
FILE *,
FILE *,
Document,
unsigned int
#endif
);
SPECTRE_END_DECLS
#endif /* PS_H */
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