Thu, 20 Feb 2003 12:21:10 +0000
my own PDF routines to replace Panda.
1 #include <stdio.h>
2 #include <stdlib.h>
5 #include "pdf.h"
6 #include "pdf_util.h"
7 #include "pdf_prim.h"
8 #include "pdf_private.h"
11 static void pdf_set_info (pdf_file_handle pdf_file, char *key, char *val)
12 {
13 if (! pdf_file->info)
14 pdf_file->info = pdf_new_ind_ref (pdf_file, pdf_new_obj (PT_DICTIONARY));
16 pdf_set_dict_entry (pdf_file->info, key, pdf_new_string (val));
17 }
20 void pdf_init (void)
21 {
22 }
25 struct pdf_pages *pdf_new_pages (pdf_file_handle pdf_file)
26 {
27 struct pdf_pages *pages = pdf_calloc (sizeof (struct pdf_pages));
28 pages->kids = pdf_new_ind_ref (pdf_file, pdf_new_obj (PT_ARRAY));
29 pages->count = pdf_new_integer (0);
30 pages->pages_dict = pdf_new_ind_ref (pdf_file, pdf_new_obj (PT_DICTIONARY));
31 pdf_set_dict_entry (pages->pages_dict, "Type", pdf_new_name ("Pages"));
32 pdf_set_dict_entry (pages->pages_dict, "Kids", pages->kids);
33 pdf_set_dict_entry (pages->pages_dict, "Count", pages->count);
34 return (pages);
35 }
38 pdf_file_handle pdf_create (char *filename)
39 {
40 pdf_file_handle pdf_file;
42 pdf_file = pdf_calloc (sizeof (struct pdf_file));
44 pdf_file->f = fopen (filename, "wb");
45 if (! pdf_file->f)
46 {
47 pdf_fatal ("error opening output file\n");
48 }
50 pdf_file->root = pdf_new_pages (pdf_file);
52 pdf_file->catalog = pdf_new_ind_ref (pdf_file, pdf_new_obj (PT_DICTIONARY));
53 pdf_set_dict_entry (pdf_file->catalog, "Type", pdf_new_name ("Catalog"));
54 pdf_set_dict_entry (pdf_file->catalog, "Pages", pdf_file->root->pages_dict);
55 /* Outlines dictionary will be created later if needed*/
56 pdf_set_dict_entry (pdf_file->catalog, "PageMode", pdf_new_name ("UseNone"));
58 pdf_file->info = pdf_new_ind_ref (pdf_file, pdf_new_obj (PT_DICTIONARY));
59 pdf_set_info (pdf_file, "Producer", "t2p, Copyright 2003 Eric Smith <eric@brouhaha.com>");
61 pdf_file->trailer_dict = pdf_new_obj (PT_DICTIONARY);
62 /* Size key will be added later */
63 pdf_set_dict_entry (pdf_file->trailer_dict, "Root", pdf_file->catalog);
64 pdf_set_dict_entry (pdf_file->trailer_dict, "Info", pdf_file->info);
66 /* write file header */
67 fprintf (pdf_file->f, "%%PDF-1.2\r\n");
69 return (pdf_file);
70 }
73 void pdf_close (pdf_file_handle pdf_file)
74 {
75 /* write body */
76 pdf_write_all_ind_obj (pdf_file);
78 /* write cross reference table and get maximum object number */
79 pdf_set_dict_entry (pdf_file->trailer_dict, "Size", pdf_new_integer (pdf_write_xref (pdf_file)));
81 /* write trailer */
82 fprintf (pdf_file->f, "trailer\r\n");
83 pdf_write_obj (pdf_file, pdf_file->trailer_dict);
84 fprintf (pdf_file->f, "startxref\r\n");
85 fprintf (pdf_file->f, "%ld\r\n", pdf_file->xref_offset);
86 fprintf (pdf_file->f, "%%%%EOF\r\n");
88 fclose (pdf_file->f);
89 /* should free stuff here */
90 }
93 void pdf_set_author (pdf_file_handle pdf_file, char *author)
94 {
95 pdf_set_info (pdf_file, "Author", author);
96 }
98 void pdf_set_creator (pdf_file_handle pdf_file, char *creator)
99 {
100 pdf_set_info (pdf_file, "Creator", creator);
101 }
103 void pdf_set_producer (pdf_file_handle pdf_file, char *producer)
104 {
105 pdf_set_info (pdf_file, "Producer", producer);
106 }
108 void pdf_set_title (pdf_file_handle pdf_file, char *title)
109 {
110 pdf_set_info (pdf_file, "Title", title);
111 }
113 void pdf_set_subject (pdf_file_handle pdf_file, char *subject)
114 {
115 pdf_set_info (pdf_file, "Subject", subject);
116 }
118 void pdf_set_keywords (pdf_file_handle pdf_file, char *keywords)
119 {
120 pdf_set_info (pdf_file, "Keywords", keywords);
121 }
124 pdf_page_handle pdf_new_page (pdf_file_handle pdf_file,
125 double width,
126 double height)
127 {
128 pdf_page_handle page = pdf_calloc (sizeof (struct pdf_page));
130 page->pdf_file = pdf_file;
132 page->media_box = pdf_new_obj (PT_ARRAY);
133 pdf_add_array_elem (page->media_box, pdf_new_real (0));
134 pdf_add_array_elem (page->media_box, pdf_new_real (0));
135 pdf_add_array_elem (page->media_box, pdf_new_real (width));
136 pdf_add_array_elem (page->media_box, pdf_new_real (height));
138 page->procset = pdf_new_obj (PT_ARRAY);
139 pdf_add_array_elem (page->procset, pdf_new_name ("PDF"));
141 page->resources = pdf_new_obj (PT_DICTIONARY);
142 pdf_set_dict_entry (page->resources, "ProcSet", page->procset);
144 page->page_dict = pdf_new_ind_ref (pdf_file, pdf_new_obj (PT_DICTIONARY));
145 pdf_set_dict_entry (page->page_dict, "Type", pdf_new_name ("Page"));
146 pdf_set_dict_entry (page->page_dict, "MediaBox", page->media_box);
147 pdf_set_dict_entry (page->page_dict, "Resources", page->resources);
149 /* $$$ currently only support a single-level pages tree */
150 pdf_set_dict_entry (page->page_dict, "Parent", pdf_file->root->pages_dict);
151 pdf_add_array_elem (pdf_file->root->kids, page->page_dict);
152 pdf_set_integer (pdf_file->root->count,
153 pdf_get_integer (pdf_file->root->count) + 1);
155 page->last_XObject_name = '@'; /* first name will be "ImA" */
157 return (page);
158 }
160 void pdf_close_page (pdf_page_handle pdf_page)
161 {
162 }
165 void pdf_set_page_number (pdf_page_handle pdf_page, char *page_number)
166 {
167 }
169 void pdf_bookmark (pdf_page_handle pdf_page, int level, char *name)
170 {
171 }