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/*********************************************************************
pdf -- functions to write PDF files.
This is part of GNU Astronomy Utilities (Gnuastro) package.
Original author:
Mohammad Akhlaghi <mohammad@akhlaghi.org>
Contributing author(s):
Copyright (C) 2015-2018, Free Software Foundation, Inc.
Gnuastro 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.
Gnuastro 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 Gnuastro. If not, see <http://www.gnu.org/licenses/>.
**********************************************************************/
#include <config.h>
#include <stdio.h>
#include <errno.h>
#include <error.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <gnuastro/eps.h>
#include <gnuastro/pdf.h>
#include <gnuastro-internal/checkset.h>
/*************************************************************
************** Acceptable PDF names ***************
*************************************************************/
int
gal_pdf_name_is_pdf(char *name)
{
size_t len;
len=strlen(name);
if (strcmp(&name[len-3], "pdf") == 0
|| strcmp(&name[len-3], "PDF") == 0)
return 1;
else
return 0;
}
int
gal_pdf_suffix_is_pdf(char *name)
{
if (strcmp(name, "pdf") == 0 || strcmp(name, ".pdf") == 0
|| strcmp(name, "PDF") == 0 || strcmp(name, ".PDF") == 0)
return 1;
else
return 0;
}
/*************************************************************
************** Write a PDF image ***************
*************************************************************/
void
gal_pdf_write(gal_data_t *in, char *filename, float widthincm,
uint32_t borderwidth)
{
char command[20000];
size_t w_h_in_pt[2];
char *epsname=gal_checkset_malloc_cat(filename, ".ps");
/* Write the EPS file. */
gal_eps_write(in, epsname, widthincm, borderwidth, 0, 1);
/* Get the size of the image in `pt' units. */
gal_eps_to_pt(widthincm, in->dsize, w_h_in_pt);
/* Write the ghostscript command to compile the EPS file to PDF. */
sprintf(command, "gs -q -o %s -sDEVICE=pdfwrite -dDEVICEWIDTHPOINTS=%zu"
" -dDEVICEHEIGHTPOINTS=%zu -dPDFFitPage %s", filename,
w_h_in_pt[0]+2*borderwidth, w_h_in_pt[1]+2*borderwidth,
epsname);
/* Run Ghostscript. */
if(system(command))
error(EXIT_FAILURE, 0, "the command to convert a PostScript file to "
"PDF (`%s') was not successful! The PostScript file (%s) is "
"left if you want to convert or use it through any other "
"means", command, epsname);
/* Delete the EPS file. */
errno=0;
if(unlink(epsname))
error(EXIT_FAILURE, errno, "%s", epsname);
/* Clean up. */
free(epsname);
}
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