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Diffstat (limited to 'backend/ps/ps.h')
| -rw-r--r-- | backend/ps/ps.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/backend/ps/ps.h b/backend/ps/ps.h new file mode 100644 index 0000000..5e27618 --- /dev/null +++ b/backend/ps/ps.h @@ -0,0 +1,107 @@ +/* + * ps.h -- Include file for PostScript routines. + * Copyright (C) 1992 Timothy O. Theisen + * + * 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 this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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 __GGV_PS_H__ +#define __GGV_PS_H__ + +#include <stdio.h> + +#include <gsio.h> +#include <gstypes.h> + +G_BEGIN_DECLS + +/* 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, ASCEND, DESCEND, SPECIAL }; + +#define PSLINELENGTH 257 /* 255 characters + 1 newline + 1 NULL */ + +struct document { + int epsf; /* Encapsulated PostScript flag. */ + char *title; /* Title of document. */ + char *date; /* Creation date. */ + char *creator; /* Program that created the file */ + 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; /* GTK_GS_ORIENTATION_PORTRAIT, GTK_GS_ORIENTATION_LANDSCAPE */ + int default_page_orientation; /* GTK_GS_ORIENTATION_PORTRAIT, GTK_GS_ORIENTATION_LANDSCAPE */ + unsigned int numsizes; + GtkGSPaperSize *size; + GtkGSPaperSize *default_page_size; + unsigned int numpages; + struct page *pages; +}; + +struct page { + char *label; + int boundingbox[4]; + GtkGSPaperSize *size; + int orientation; /* GTK_GS_ORIENTATION_PORTRAIT, GTK_GS_ORIENTATION_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 . */ +struct document *psscan(FILE * fileP, int respect_eof, const gchar * fname); + +/* free data structure malloc'ed by psscan */ +void psfree(struct document *); + +/* Copy a portion of the PostScript file */ +void pscopy(FILE * from, GtkGSDocSink * to, long begin, long end); + +/* Copy a portion of the PostScript file upto a comment */ +char *pscopyuntil(FILE * from, GtkGSDocSink * to, long begin, long end, + const char *comment); + +/* Copy the headers, marked pages, and trailer to fp */ +void pscopydoc(GtkGSDocSink * dest_file, char *src_filename, + struct document *d, int *pagelist); + +G_END_DECLS + +#endif /* __GGV_PS_H__ */ |