1 /* pdfsetmatrix.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 PDFSETMATRIX_H
22 #  define PDFSETMATRIX_H
23 
24 #  define set_pdf_setmatrix_data(A,B) pdf_setmatrix_data(A)=B
25 
26 typedef struct {
27     double a;
28     double b;
29     double c;
30     double d;
31     double e;
32     double f;
33 } matrix_entry;
34 
35 extern matrix_entry *matrix_stack;
36 extern int matrix_stack_size;
37 extern int matrix_stack_used;
38 
39 
40 scaled getllx(void);
41 scaled getlly(void);
42 scaled geturx(void);
43 scaled getury(void);
44 void matrixtransformpoint(scaled x, scaled y);
45 void matrixtransformrect(scaled llx, scaled lly, scaled urx, scaled ury);
46 boolean matrixused(void);
47 void matrixrecalculate(scaled urx);
48 
49 extern void pdf_out_setmatrix(PDF pdf, halfword p);
50 
51 #endif
52