--- /dev/null
+## Copyright (C) 2010-2012 Ben Abbott
+##
+## This file is part of Octave.
+##
+## Octave 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 3 of the License, or (at
+## your option) any later version.
+##
+## Octave 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 Octave; see the file COPYING. If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} __ghostscript__ (@var{@dots{}})
+## Undocumented internal function.
+## @end deftypefn
+
+## Author: Ben Abbott <bpabbott@mac.com>
+## Created: 2010-07-26
+
+function [gs_cmd, cleanup_cmd] = __ghostscript__ (varargin);
+
+ opts.binary = "";
+ opts.source = "-";
+ opts.output = "-";
+ opts.device = "";
+ opts.epscrop = false;
+ opts.antialiasing = false;
+ opts.resolution = 150;
+ opts.papersize = "";
+ opts.pageoffset = [0 0];
+ opts.debug = false;
+ opts.level = [];
+ opts.prepend = "";
+
+ offsetfile = "";
+ offset_ps = {};
+ cleanup_cmd = "";
+
+ args = varargin;
+ n = find (cellfun ("isclass", args, "struct"));
+ if (! isempty (n))
+ f = fieldnames (args{n});
+ for m = 1:numel(f)
+ opts.(f{m}) = args{n}.(f{m});
+ endfor
+ args(n) = [];
+ endif
+ for n = 1:2:numel(args)
+ opts.(args{n}) = args{n+1};
+ endfor
+
+ if (isempty (opts.papersize))
+ format_for_printer = false;
+ else
+ format_for_printer = true;
+ endif
+
+ gs_opts = sprintf ("-dQUIET -dNOPAUSE -dBATCH -dSAFER -sDEVICE=%s", opts.device);
+
+ if (! isempty (opts.level) && ismember (opts.level, [1, 2, 3]))
+ gs_opts = sprintf ("%s -dLanguageLevel=%d", gs_opts, round (opts.level));
+ endif
+
+ if (opts.antialiasing && isempty (strfind (opts.device, "write")))
+ ## Apply anti-aliasing to all bitmap formats/devices
+ gs_opts = sprintf ("%s -dTextAlphaBits=4 -dGraphicsAlphaBits=4", gs_opts);
+ gs_opts = sprintf ("%s -r%dx%d", gs_opts, [1, 1] * opts.resolution);
+ elseif (any (strcmp (opts.device, {"pswrite", "ps2write", "pdfwrite"})))
+ gs_opts = sprintf ("%s -dEmbedAllFonts=true", gs_opts);
+ if (strcmp (opts.device, "pdfwrite"))
+ ## Optimize for loading
+ gs_opts = sprintf ("%s -dOptimize=true", gs_opts);
+ endif
+ endif
+
+ if (opts.epscrop)
+ ## papersize is specified by the eps bbox
+ gs_opts = sprintf ("%s -dEPSCrop", gs_opts);
+ endif
+ if (format_for_printer)
+ if (ischar (opts.papersize))
+ gs_opts = sprintf ("%s -sPAPERSIZE=%s", gs_opts, opts.papersize);
+ elseif (isnumeric (opts.papersize) && numel (opts.papersize) == 2)
+ gs_opts = sprintf ("%s -dDEVICEWIDTHPOINTS=%d -dDEVICEHEIGHTPOINTS=%d",
+ gs_opts, opts.papersize);
+ if (opts.papersize(1) > opts.papersize(2))
+ ## Lanscape mode: This option will result in automatic rotation of the
+ ## document page if the requested page size matches one
+ ## of the default page sizes
+ gs_opts = sprintf ("%s -dNORANGEPAGESIZE", gs_opts);
+ endif
+ else
+ error ("print:badpapersize", "__ghostscript__.m: invalid 'papersize'");
+ endif
+ gs_opts = sprintf ("%s -dFIXEDMEDIA", gs_opts);
+ ## "pageoffset" is relative to the coordinates, not the BBox LLHC.
+ str = sprintf ("%s [%d %d] %s", "<< /Margins [0 0] /.HWMargins [0 0 0 0] /PageOffset",
+ opts.pageoffset, ">> setpagedevice");
+ offset_ps = {"%!PS-Adobe-3.0", str, "%%EOF"};
+ if (isfield (opts, "offsetfile"))
+ offsetfile = opts.offsetfile;
+ cleanup_cmd = "";
+ else
+ offsetfile = strcat (tmpnam (), ".ps");
+ cleanup_cmd = sprintf ("rm %s", offsetfile);
+ endif
+ unwind_protect
+ fid = fopen (offsetfile, "w");
+ if (fid == -1)
+ error ("print:fopenfailed", "__ghostscript__.m: fopen() failed");
+ endif
+ fprintf (fid, "%s\n", offset_ps{:});
+ unwind_protect_cleanup
+ status = fclose (fid);
+ if (status == -1)
+ error ("print:fclosefailed", "__ghostscript__.m: fclose() failed");
+ endif
+ end_unwind_protect
+ if (opts.debug)
+ fprintf ("---- begin %s ----\n", offsetfile);
+ fprintf ("%s\n", offset_ps{:});
+ fprintf ("----- end %s -----\n", offsetfile);
+ endif
+ endif
+
+ if (isempty (opts.binary))
+ error ("print:no_ghostscript", "__ghostscript__.m: ghostscript is required.");
+ elseif (isempty (opts.output))
+ cmd = sprintf ("%s %s", opts.binary, gs_opts);
+ else
+ cmd = sprintf ("%s %s -sOutputFile=%s", opts.binary, gs_opts, opts.output);
+ endif
+ if (! isempty (opts.prepend)
+ && any (strcmpi (opts.device, {"pswrite", "ps2write", "pdfwrite"})))
+ ## FIXME - Fonts get may be mangled when appending ps/ps2.
+ ## See "How to concatenate several PS files" at the link,
+ ## http://en.wikibooks.org/wiki/PostScript_FAQ
+ cmd = sprintf ("%s %s", cmd, opts.prepend);
+ if (isempty (cleanup_cmd))
+ cleanup_cmd = sprintf ("rm %s", opts.prepend);
+ else
+ cleanup_cmd = sprintf ("%s ; rm %s", cleanup_cmd, opts.prepend);
+ endif
+ endif
+ if (! isempty (offsetfile) && format_for_printer)
+ cmd = sprintf ("%s %s", cmd, offsetfile);
+ endif
+ if (! isempty (opts.source))
+ cmd = sprintf ("%s %s", cmd, opts.source);
+ endif
+
+ if (opts.debug)
+ fprintf ("Ghostscript command: '%s'\n", cmd);
+ endif
+
+ gs_cmd = cmd;
+
+endfunction
+
+
git://git.creatis.insa-lyon.fr / CreaPhase.git / blobdiff