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_links (EvDocument *document)
267 PdfDocument *pdf_document;
268 GList *retval = NULL;
273 pdf_document = PDF_DOCUMENT (document);
274 g_return_val_if_fail (pdf_document->page != NULL, NULL);
276 mapping_list = poppler_page_get_link_mapping (pdf_document->page);
277 get_size_from_page (pdf_document->page, 1.0, NULL, &height);
279 for (list = mapping_list; list; list = list->next) {
280 PopplerLinkMapping *link_mapping;
281 EvLinkMapping *ev_link_mapping;
283 link_mapping = (PopplerLinkMapping *)list->data;
284 ev_link_mapping = g_new (EvLinkMapping, 1);
285 ev_link_mapping->link = ev_link_from_action (link_mapping->action);
286 ev_link_mapping->x1 = link_mapping->x1;
287 ev_link_mapping->x2 = link_mapping->x2;
288 /* Invert this for X-style coordinates */
289 ev_link_mapping->y1 = height - link_mapping->y2;
290 ev_link_mapping->y2 = height - link_mapping->y1;
292 retval = g_list_prepend (retval, ev_link_mapping);
295 poppler_page_free_link_mapping (mapping_list);
297 return g_list_reverse (retval);
302 pdf_document_render_pixbuf (EvDocument *document)
304 PdfDocument *pdf_document;
308 pdf_document = PDF_DOCUMENT (document);
309 g_return_val_if_fail (pdf_document->page != NULL, NULL);
311 get_size_from_page (pdf_document->page,
315 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
319 poppler_page_render_to_pixbuf (pdf_document->page,
329 /* EvDocumentSecurity */
332 pdf_document_has_document_security (EvDocumentSecurity *document_security)
334 /* FIXME: do we really need to have this? */
339 pdf_document_set_password (EvDocumentSecurity *document_security,
340 const char *password)
342 PdfDocument *document = PDF_DOCUMENT (document_security);
344 if (document->password)
345 g_free (document->password);
347 document->password = g_strdup (password);
353 pdf_document_document_iface_init (EvDocumentIface *iface)
355 iface->save = pdf_document_save;
356 iface->load = pdf_document_load;
357 iface->get_n_pages = pdf_document_get_n_pages;
358 iface->set_page = pdf_document_set_page;
359 iface->get_page = pdf_document_get_page;
360 iface->set_scale = pdf_document_set_scale;
361 iface->get_page_size = pdf_document_get_page_size;
362 iface->get_links = pdf_document_get_links;
363 iface->render_pixbuf = pdf_document_render_pixbuf;
367 pdf_document_security_iface_init (EvDocumentSecurityIface *iface)
369 iface->has_document_security = pdf_document_has_document_security;
370 iface->set_password = pdf_document_set_password;
374 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
376 PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
377 PopplerIndexIter *iter;
379 g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
381 iter = poppler_index_iter_new (pdf_document->document);
384 poppler_index_iter_free (iter);
390 ev_link_from_action (PopplerAction *action)
395 title = action->any.title;
397 if (action->type == POPPLER_ACTION_GOTO_DEST) {
398 link = ev_link_new_page (title, action->goto_dest.dest->page_num - 1);
399 } else if (action->type == POPPLER_ACTION_URI) {
400 link = ev_link_new_external (title, action->uri.uri);
402 link = ev_link_new_title (title);
410 build_tree (PdfDocument *pdf_document,
413 PopplerIndexIter *iter)
417 GtkTreeIter tree_iter;
418 PopplerIndexIter *child;
419 PopplerAction *action;
422 action = poppler_index_iter_get_action (iter);
424 gtk_tree_store_append (GTK_TREE_STORE (model), &tree_iter, parent);
425 link = ev_link_from_action (action);
426 poppler_action_free (action);
428 gtk_tree_store_set (GTK_TREE_STORE (model), &tree_iter,
429 EV_DOCUMENT_LINKS_COLUMN_MARKUP, ev_link_get_title (link),
430 EV_DOCUMENT_LINKS_COLUMN_LINK, link,
432 child = poppler_index_iter_get_child (iter);
434 build_tree (pdf_document, model, &tree_iter, child);
435 poppler_index_iter_free (child);
437 } while (poppler_index_iter_next (iter));
441 static GtkTreeModel *
442 pdf_document_links_get_links_model (EvDocumentLinks *document_links)
444 PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
445 GtkTreeModel *model = NULL;
446 PopplerIndexIter *iter;
448 g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
450 iter = poppler_index_iter_new (pdf_document->document);
451 /* Create the model iff we have items*/
453 model = (GtkTreeModel *) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
456 build_tree (pdf_document, model, NULL, iter);
457 poppler_index_iter_free (iter);
466 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
468 iface->has_document_links = pdf_document_links_has_document_links;
469 iface->get_links_model = pdf_document_links_get_links_model;
474 make_thumbnail_for_size (PdfDocument *pdf_document,
479 PopplerPage *poppler_page;
482 int x_offset, y_offset;
484 gdouble unscaled_width, unscaled_height;
486 poppler_page = poppler_document_get_page (pdf_document->document, page);
488 g_return_val_if_fail (poppler_page != NULL, NULL);
490 pdf_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (pdf_document), page, size, &width, &height);
491 poppler_page_get_size (poppler_page, &unscaled_width, &unscaled_height);
492 scale = width / unscaled_width;
495 pixbuf = ev_document_misc_get_thumbnail_frame (width, height, NULL);
499 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
501 gdk_pixbuf_fill (pixbuf, 0xffffffff);
506 poppler_page_render_to_pixbuf (poppler_page, 0, 0,
515 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
520 PdfDocument *pdf_document;
521 PopplerPage *poppler_page;
524 pdf_document = PDF_DOCUMENT (document_thumbnails);
526 poppler_page = poppler_document_get_page (pdf_document->document, page);
527 g_return_val_if_fail (poppler_page != NULL, NULL);
529 pixbuf = poppler_page_get_thumbnail (poppler_page);
530 if (pixbuf != NULL) {
531 /* The document provides its own thumbnails. */
533 GdkPixbuf *real_pixbuf;
535 real_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, pixbuf);
536 g_object_unref (pixbuf);
537 pixbuf = real_pixbuf;
540 /* There is no provided thumbnail. We need to make one. */
541 pixbuf = make_thumbnail_for_size (pdf_document, page, size, border);
547 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
553 PdfDocument *pdf_document;
554 PopplerPage *poppler_page;
557 pdf_document = PDF_DOCUMENT (document_thumbnails);
558 poppler_page = poppler_document_get_page (pdf_document->document, page);
560 g_return_if_fail (width != NULL);
561 g_return_if_fail (height != NULL);
562 g_return_if_fail (poppler_page != NULL);
564 has_thumb = poppler_page_get_thumbnail_size (poppler_page, width, height);
567 int page_width, page_height;
569 get_size_from_page (poppler_page, 1.0, &page_width, &page_height);
571 if (page_width > page_height) {
573 *height = (int) (size * page_height / page_width);
575 *width = (int) (size * page_width / page_height);
582 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
584 iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
585 iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
589 pdf_document_new (void)
591 return PDF_DOCUMENT (g_object_new (PDF_TYPE_DOCUMENT, NULL));