source/texk/web2c/luatexdir/pdf/pdfsaverestore.h

   1 /* pdfsaverestore.h
   2
   3    Copyright 2009 Taco Hoekwater <taco@luatex.org>
   4
   5    This file is part of LuaTeX.
   6
   7    LuaTeX is free software; you can redistribute it and/or modify it under
   8    the terms of the GNU General Public License as published by the Free
   9    Software Foundation; either version 2 of the License, or (at your
  10    option) any later version.
  11
  12    LuaTeX is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  15    License for more details.
  16
  17    You should have received a copy of the GNU General Public License along
  18    with LuaTeX; if not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #ifndef PDFSAVERESTORE_H
  22 #  define PDFSAVERESTORE_H
  23
  24 /* stack for positions of \pdfsave */
  25
  26 typedef struct {
  27     scaledpos pos;
  28     int matrix_stack;
  29 } pos_entry;
  30
  31 extern pos_entry *pos_stack; /* the stack */
  32 extern int pos_stack_size;   /* initially empty */
  33 extern int pos_stack_used;   /* used entries */
  34
  35 extern void pdf_out_save(PDF pdf, halfword p);
  36 extern void pdf_out_restore(PDF pdf, halfword p);
  37
  38 #endif