/* pdfdest.h

   Copyright 2009 Taco Hoekwater <taco@luatex.org>

   This file is part of LuaTeX.

   LuaTeX 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 2 of the License, or (at your
   option) any later version.

   LuaTeX 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 Lesser General Public
   License for more details.

   You should have received a copy of the GNU General Public License along
   with LuaTeX; if not, see <http://www.gnu.org/licenses/>.
*/


#ifndef PDFDEST_H
#  define PDFDEST_H

/* types of destinations */

typedef enum {
    pdf_dest_xyz   = 0,
    pdf_dest_fit   = 1,
    pdf_dest_fith  = 2,
    pdf_dest_fitv  = 3,
    pdf_dest_fitb  = 4,
    pdf_dest_fitbh = 5,
    pdf_dest_fitbv = 6,
    pdf_dest_fitr  = 7
} pdf_destination_types;

/* max number of kids for balanced trees */

#  define name_tree_kids_max 32 /* max number of kids of node of name tree for name destinations */

/* data structure of destinations */

#  define obj_dest_ptr              obj_aux     /* pointer to |pdf_dest_node| */
#  define set_obj_dest_ptr(pdf,A,B) obj_dest_ptr(pdf,A)=B

#  define set_pdf_dest_struct_id(A,B)pdf_dest_struct_id(A)=B
#  define set_pdf_dest_id(A,B)       pdf_dest_id(A)=B
#  define set_pdf_dest_named_id(A,B) pdf_dest_named_id(A)=B
#  define set_pdf_dest_type(A,B)     pdf_dest_type(A)=B
#  define set_pdf_dest_xyz_zoom(A,B) pdf_dest_xyz_zoom(A)=B

#  define inf_dest_names_size   1000  /* min size of the destination names table for PDF output */
#  define sup_dest_names_size 131072  /* max size of the destination names table for PDF output */

extern void append_dest_name(PDF, char *, int);
extern void do_dest(PDF pdf, halfword p, halfword parent_box, scaledpos cur);

extern void write_out_pdf_mark_destinations(PDF);
extern void scan_pdfdest(PDF);
extern void init_dest_names(PDF);
extern void sort_dest_names(PDF);
extern int output_name_tree(PDF);

#endif
