Wed, 05 Mar 2003 20:44:33 +0000
correct copyright years on recently created source files.
1 /*
2 * t2p: Create a PDF file from the contents of one or more TIFF
3 * bilevel image files. The images in the resulting PDF file
4 * will be compressed using ITU-T T.6 (G4) fax encoding.
5 *
6 * PDF routines
7 * $Id: pdf_bookmark.c,v 1.4 2003/03/05 12:44:33 eric Exp $
8 * Copyright 2003 Eric Smith <eric@brouhaha.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation. Note that permission is
13 * not granted to redistribute this program under the terms of any
14 * other version of the General Public License.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
24 */
27 #include <stdbool.h>
28 #include <stdint.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
34 #include "bitblt.h"
35 #include "pdf.h"
36 #include "pdf_util.h"
37 #include "pdf_prim.h"
38 #include "pdf_private.h"
41 static void pdf_bookmark_update_count (pdf_bookmark_handle entry)
42 {
43 while (entry)
44 {
45 if (! entry->count)
46 {
47 entry->count = pdf_new_integer (0);
48 pdf_set_dict_entry (entry->dict, "Count", entry->count);
49 }
50 pdf_set_integer (entry->count,
51 pdf_get_integer (entry->count) +
52 ((entry->open) ? 1 : -1));
53 if (! entry->open)
54 break;
55 entry = entry->parent;
56 }
57 }
60 /* Create a new bookmark, under the specified parent, or at the top
61 level if parent is NULL. */
62 pdf_bookmark_handle pdf_new_bookmark (pdf_bookmark_handle parent,
63 char *title,
64 bool open,
65 pdf_page_handle pdf_page)
66 {
67 pdf_file_handle pdf_file = pdf_page->pdf_file;
68 struct pdf_bookmark *root;
69 struct pdf_bookmark *entry;
71 struct pdf_obj *dest_array;
73 root = pdf_file->outline_root;
74 if (! root)
75 {
76 root = pdf_calloc (1, sizeof (struct pdf_bookmark));
77 root->dict = pdf_new_ind_ref (pdf_file, pdf_new_obj (PT_DICTIONARY));
79 pdf_file->outline_root = root;
80 pdf_set_dict_entry (pdf_file->catalog, "Outlines", root->dict);
81 }
83 entry = pdf_calloc (1, sizeof (struct pdf_bookmark));
84 entry->dict = pdf_new_ind_ref (pdf_file, pdf_new_obj (PT_DICTIONARY));
85 entry->open = open;
87 pdf_set_dict_entry (entry->dict, "Title", pdf_new_string (title));
89 dest_array = pdf_new_obj (PT_ARRAY);
90 pdf_add_array_elem (dest_array, pdf_page->page_dict);
91 pdf_add_array_elem (dest_array, pdf_new_name ("Fit"));
92 pdf_set_dict_entry (entry->dict, "Dest", dest_array);
94 if (parent)
95 {
96 entry->parent = parent;
97 entry->prev = parent->last;
98 }
99 else
100 {
101 parent = root;
102 entry->parent = root;
103 entry->prev = root->last;
104 }
106 pdf_set_dict_entry (entry->dict, "Parent", parent->dict);
108 if (entry->prev)
109 {
110 pdf_set_dict_entry (entry->dict, "Prev", entry->prev->dict);
112 entry->prev->next = entry;
113 pdf_set_dict_entry (entry->prev->dict, "Next", entry->dict);
115 parent->last = entry;
116 pdf_set_dict_entry (parent->dict, "Last", entry->dict);
117 }
118 else
119 {
120 parent->first = entry;
121 pdf_set_dict_entry (parent->dict, "First", entry->dict);
123 parent->last = entry;
124 pdf_set_dict_entry (parent->dict, "Last", entry->dict);
125 }
127 pdf_bookmark_update_count (parent);
129 return (entry);
130 }