1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
2 /* pdfdocument.h: Implementation of EvDocument for PDF
3 * Copyright (C) 2004, Red Hat, Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #include <poppler-document.h>
23 #include <poppler-page.h>
25 #include "ev-poppler.h"
26 #include "ev-ps-exporter.h"
27 #include "ev-document-find.h"
28 #include "ev-document-misc.h"
29 #include "ev-document-links.h"
30 #include "ev-document-security.h"
31 #include "ev-document-thumbnails.h"
40 struct _PdfDocumentClass
42 GObjectClass parent_class;
47 GObject parent_instance;
49 PopplerDocument *document;
55 static void pdf_document_document_iface_init (EvDocumentIface *iface);
56 static void pdf_document_security_iface_init (EvDocumentSecurityIface *iface);
57 static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
58 static void pdf_document_document_links_iface_init (EvDocumentLinksIface *iface);
59 static void pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
64 static EvLink * ev_link_from_action (PopplerAction *action);
67 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
69 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
70 pdf_document_document_iface_init);
71 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_SECURITY,
72 pdf_document_security_iface_init);
73 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
74 pdf_document_document_thumbnails_iface_init);
75 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
76 pdf_document_document_links_iface_init);
78 G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER,
79 pdf_document_ps_exporter_iface_init);
80 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
81 pdf_document_find_iface_init);
91 pdf_document_get_property (GObject *object,
96 PdfDocument *pdf_document = PDF_DOCUMENT (object);
101 if (pdf_document->document == NULL)
102 g_value_set_string (value, NULL);
104 g_object_get_property (G_OBJECT (pdf_document->document), "title", value);
110 pdf_document_class_init (PdfDocumentClass *klass)
112 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
114 gobject_class->get_property = pdf_document_get_property;
116 g_object_class_override_property (gobject_class, PROP_TITLE, "title");
120 pdf_document_init (PdfDocument *pdf_document)
122 pdf_document->page = NULL;
123 pdf_document->scale = 1.0;
124 pdf_document->password = NULL;
128 convert_error (GError *poppler_error,
131 if (poppler_error == NULL)
134 if (poppler_error->domain == POPPLER_ERROR) {
135 /* convert poppler errors into EvDocument errors */
136 gint code = EV_DOCUMENT_ERROR_INVALID;
137 if (poppler_error->code == POPPLER_ERROR_INVALID)
138 code = EV_DOCUMENT_ERROR_INVALID;
139 else if (poppler_error->code == POPPLER_ERROR_ENCRYPTED)
140 code = EV_DOCUMENT_ERROR_ENCRYPTED;
146 poppler_error->message,
149 g_propagate_error (error, poppler_error);
156 pdf_document_save (EvDocument *document,
161 GError *poppler_error = NULL;
163 retval = poppler_document_save (PDF_DOCUMENT (document)->document,
167 convert_error (poppler_error, error);
173 pdf_document_load (EvDocument *document,
177 GError *poppler_error = NULL;
178 PdfDocument *pdf_document = PDF_DOCUMENT (document);
180 pdf_document->document =
181 poppler_document_new_from_file (uri, pdf_document->password, &poppler_error);
183 if (pdf_document->document == NULL) {
184 convert_error (poppler_error, error);
192 pdf_document_get_n_pages (EvDocument *document)
194 return poppler_document_get_n_pages (PDF_DOCUMENT (document)->document);
198 pdf_document_set_page (EvDocument *document,
201 page = CLAMP (page, 0, poppler_document_get_n_pages (PDF_DOCUMENT (document)->document) - 1);
203 PDF_DOCUMENT (document)->page = poppler_document_get_page (PDF_DOCUMENT (document)->document, page);
207 pdf_document_get_page (EvDocument *document)
209 PdfDocument *pdf_document;
211 pdf_document = PDF_DOCUMENT (document);
213 if (pdf_document->page)
214 return poppler_page_get_index (pdf_document->page);
220 pdf_document_set_scale (EvDocument *document,
223 PDF_DOCUMENT (document)->scale = scale;
228 get_size_from_page (PopplerPage *poppler_page,
233 gdouble width_d, height_d;
234 poppler_page_get_size (poppler_page, &width_d, &height_d);
236 *width = (int) (width_d * scale);
238 *height = (int) (height_d * scale);
243 pdf_document_get_page_size (EvDocument *document,
248 PopplerPage *poppler_page = NULL;
251 poppler_page = PDF_DOCUMENT (document)->page;
253 poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
256 if (poppler_page == NULL)
257 poppler_document_get_page (PDF_DOCUMENT (document)->document, 0);
259 get_size_from_page (poppler_page,
260 PDF_DOCUMENT (document)->scale,
265 pdf_document_get_page_label (EvDocument *document,
268 PopplerPage *poppler_page = NULL;
272 poppler_page = PDF_DOCUMENT (document)->page;
274 poppler_page = poppler_document_get_page (PDF_DOCUMENT (document)->document,
277 g_object_get (poppler_page,
285 pdf_document_get_links (EvDocument *document)
287 PdfDocument *pdf_document;
288 GList *retval = NULL;
293 pdf_document = PDF_DOCUMENT (document);
294 g_return_val_if_fail (pdf_document->page != NULL, NULL);
296 mapping_list = poppler_page_get_link_mapping (pdf_document->page);
297 get_size_from_page (pdf_document->page, 1.0, NULL, &height);
299 for (list = mapping_list; list; list = list->next) {
300 PopplerLinkMapping *link_mapping;
301 EvLinkMapping *ev_link_mapping;
303 link_mapping = (PopplerLinkMapping *)list->data;
304 ev_link_mapping = g_new (EvLinkMapping, 1);
305 ev_link_mapping->link = ev_link_from_action (link_mapping->action);
306 ev_link_mapping->x1 = link_mapping->area.x1;
307 ev_link_mapping->x2 = link_mapping->area.x2;
308 /* Invert this for X-style coordinates */
309 ev_link_mapping->y1 = height - link_mapping->area.y2;
310 ev_link_mapping->y2 = height - link_mapping->area.y1;
312 retval = g_list_prepend (retval, ev_link_mapping);
315 poppler_page_free_link_mapping (mapping_list);
317 return g_list_reverse (retval);
322 pdf_document_render_pixbuf (EvDocument *document)
324 PdfDocument *pdf_document;
328 pdf_document = PDF_DOCUMENT (document);
329 g_return_val_if_fail (pdf_document->page != NULL, NULL);
331 get_size_from_page (pdf_document->page,
335 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
339 poppler_page_render_to_pixbuf (pdf_document->page,
349 /* EvDocumentSecurity */
352 pdf_document_has_document_security (EvDocumentSecurity *document_security)
354 /* FIXME: do we really need to have this? */
359 pdf_document_set_password (EvDocumentSecurity *document_security,
360 const char *password)
362 PdfDocument *document = PDF_DOCUMENT (document_security);
364 if (document->password)
365 g_free (document->password);
367 document->password = g_strdup (password);
373 pdf_document_document_iface_init (EvDocumentIface *iface)
375 iface->save = pdf_document_save;
376 iface->load = pdf_document_load;
377 iface->get_n_pages = pdf_document_get_n_pages;
378 iface->set_page = pdf_document_set_page;
379 iface->get_page = pdf_document_get_page;
380 iface->set_scale = pdf_document_set_scale;
381 iface->get_page_size = pdf_document_get_page_size;
382 iface->get_page_label = pdf_document_get_page_label;
383 iface->get_links = pdf_document_get_links;
384 iface->render_pixbuf = pdf_document_render_pixbuf;
388 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
390 iface->has_document_security = pdf_document_has_document_security;
391 iface->set_password = pdf_document_set_password;
395 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
397 PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
398 PopplerIndexIter *iter;
400 g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
402 iter = poppler_index_iter_new (pdf_document->document);
405 poppler_index_iter_free (iter);
411 ev_link_from_action (PopplerAction *action)
416 title = action->any.title;
418 if (action->type == POPPLER_ACTION_GOTO_DEST) {
419 link = ev_link_new_page (title, action->goto_dest.dest->page_num - 1);
420 } else if (action->type == POPPLER_ACTION_URI) {
421 link = ev_link_new_external (title, action->uri.uri);
423 link = ev_link_new_title (title);
431 build_tree (PdfDocument *pdf_document,
434 PopplerIndexIter *iter)
438 GtkTreeIter tree_iter;
439 PopplerIndexIter *child;
440 PopplerAction *action;
443 action = poppler_index_iter_get_action (iter);
445 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
446 link = ev_link_from_action (action);
447 poppler_action_free (action);
449 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
450 EV_DOCUMENT_LINKS_COLUMN_MARKUP, ev_link_get_title (link),
451 EV_DOCUMENT_LINKS_COLUMN_LINK, link,
453 child = poppler_index_iter_get_child (iter);
455 build_tree (pdf_document, model, &tree_iter, child);
456 poppler_index_iter_free (child);
458 } while (poppler_index_iter_next (iter));
462 static GtkTreeModel *
463 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
465 PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
466 GtkTreeModel *model = NULL;
467 PopplerIndexIter *iter;
469 g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
471 iter = poppler_index_iter_new (pdf_document->document);
472 /* Create the model iff we have items*/
474 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
477 build_tree (pdf_document, model, NULL, iter);
478 poppler_index_iter_free (iter);
487 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
489 iface->has_document_links = pdf_document_links_has_document_links;
490 iface->get_links_model = pdf_document_links_get_links_model;
495 make_thumbnail_for_size (PdfDocument *pdf_document,
500 PopplerPage *poppler_page;
503 int x_offset, y_offset;
505 gdouble unscaled_width, unscaled_height;
507 poppler_page = poppler_document_get_page (pdf_document->document, page);
509 g_return_val_if_fail (poppler_page != NULL, NULL);
511 pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page, size, &width, &height);
512 poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height);
513 scale = width / unscaled_width;
516 pixbuf = ev_document_misc_get_thumbnail_frame (width, height, NULL);
520 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
522 gdk_pixbuf_fill (pixbuf, 0xffffffff);
527 poppler_page_render_to_pixbuf (poppler_page, 0, 0,
536 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
541 PdfDocument *pdf_document;
542 PopplerPage *poppler_page;
545 pdf_document = PDF_DOCUMENT (document_thumbnails);
547 poppler_page = poppler_document_get_page (pdf_document->document, page);
548 g_return_val_if_fail (poppler_page != NULL, NULL);
550 pixbuf = poppler_page_get_thumbnail (poppler_page);
551 if (pixbuf != NULL) {
552 /* The document provides its own thumbnails. */
554 GdkPixbuf *real_pixbuf;
556 real_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
557 g_object_unref (pixbuf);
558 pixbuf = real_pixbuf;
561 /* There is no provided thumbnail. We need to make one. */
562 pixbuf = make_thumbnail_for_size (pdf_document, page, size, border);
568 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
574 PdfDocument *pdf_document;
575 PopplerPage *poppler_page;
578 pdf_document = PDF_DOCUMENT (document_thumbnails);
579 poppler_page = poppler_document_get_page (pdf_document->document, page);
581 g_return_if_fail (width != NULL);
582 g_return_if_fail (height != NULL);
583 g_return_if_fail (poppler_page != NULL);
585 has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
588 int page_width, page_height;
590 get_size_from_page (poppler_page, 1.0, &page_width, &page_height);
592 if (page_width > page_height) {
594 *height = (int) (size * page_height / page_width);
596 *width = (int) (size * page_width / page_height);
603 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
605 iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
606 iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
610 pdf_document_new (void)
612 return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));