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

   1 /* pdfxform.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
  22 #ifndef PDFXFORM_H
  23 #  define PDFXFORM_H
  24
  25 #  define pdfmem_xform_size 8 /* size of memory in |pdf->mem| which |obj_data_ptr| holds */
  26
  27 #  define obj_xform_width(pdf,A)          pdf->mem[obj_data_ptr(pdf,A) + 0]
  28 #  define obj_xform_height(pdf,A)         pdf->mem[obj_data_ptr(pdf,A) + 1]
  29 #  define obj_xform_depth(pdf,A)          pdf->mem[obj_data_ptr(pdf,A) + 2]
  30 #  define obj_xform_box(pdf,A)            pdf->mem[obj_data_ptr(pdf,A) + 3] /* this field holds pointer to the corresponding box */
  31 #  define obj_xform_attr(pdf,A)           pdf->mem[obj_data_ptr(pdf,A) + 4] /* additional xform attributes */
  32 #  define obj_xform_resources(pdf,A)      pdf->mem[obj_data_ptr(pdf,A) + 5] /* additional xform Resources */
  33 #  define obj_xform_attr_str(pdf,A)       pdf->mem[obj_data_ptr(pdf,A) + 6]
  34 #  define obj_xform_resources_str(pdf,A)  pdf->mem[obj_data_ptr(pdf,A) + 7]
  35
  36 #  define set_pdf_xform_objnum(A,B)            pdf_xform_objnum(A)=B
  37 #  define set_obj_xform_width(pdf,A,B)         obj_xform_width(pdf,A)=B
  38 #  define set_obj_xform_height(pdf,A,B)        obj_xform_height(pdf,A)=B
  39 #  define set_obj_xform_depth(pdf,A,B)         obj_xform_depth(pdf,A)=B
  40 #  define set_obj_xform_box(pdf,A,B)           obj_xform_box(pdf,A)=B
  41 #  define set_obj_xform_attr(pdf,A,B)          obj_xform_attr(pdf,A)=B
  42 #  define set_obj_xform_resources(pdf,A,B)     obj_xform_resources(pdf,A)=B
  43 #  define set_obj_xform_attr_str(pdf,A,B)      obj_xform_attr_str(pdf,A)=B
  44 #  define set_obj_xform_resources_str(pdf,A,B) obj_xform_resources_str(pdf,A)=B
  45
  46 extern int pdf_cur_form; /* the form being output */
  47
  48 void pdf_place_form(PDF pdf, halfword p);
  49 void scan_pdfxform(PDF pdf);
  50 void scan_pdfrefxform(PDF pdf);
  51
  52 #endif