Fri, 14 Mar 2003 08:24:37 +0000
finished implementing page labels.
1 /*
2 * tumble: build a PDF file from image files
3 *
4 * PDF routines
5 * $Id: pdf_name_tree.h,v 1.4 2003/03/14 00:24:37 eric Exp $
6 * Copyright 2003 Eric Smith <eric@brouhaha.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation. Note that permission is
11 * not granted to redistribute this program under the terms of any
12 * other version of the General Public License.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
22 */
25 struct pdf_name_tree
26 {
27 pdf_file_handle pdf_file;
28 struct pdf_name_tree *next; /* chain all name trees in the PDF file */
29 bool number_tree; /* false for name tree,
30 true for number tree */
31 struct pdf_name_tree_node *root;
32 };
35 #define MAX_NAME_TREE_NODE_ENTRIES 32
38 struct pdf_name_tree_node
39 {
40 struct pdf_obj *dict; /* indirect reference */
42 struct pdf_name_tree_node *parent; /* NULL for root */
43 bool leaf;
45 int count; /* how many kids or names/numbers are
46 attached to this node */
48 struct pdf_name_tree_node *kids [MAX_NAME_TREE_NODE_ENTRIES]; /* non-leaf only */
50 struct pdf_obj *min_key;
51 struct pdf_obj *max_key;
53 /* following fields valid in leaf nodes only: */
55 struct pdf_obj *keys [MAX_NAME_TREE_NODE_ENTRIES];
56 struct pdf_obj *values [MAX_NAME_TREE_NODE_ENTRIES];
57 };
60 struct pdf_name_tree *pdf_new_name_tree (pdf_file_handle pdf_file,
61 bool number_tree);
64 void pdf_add_name_tree_element (struct pdf_name_tree *tree,
65 char *key,
66 struct pdf_obj *val);
69 void pdf_add_number_tree_element (struct pdf_name_tree *tree,
70 long key,
71 struct pdf_obj *val);
74 void pdf_finalize_name_trees (pdf_file_handle pdf_file);