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.
20 #include <glib/gi18n.h>
22 #include "gpdf-g-switch.h"
23 #include "pdf-document.h"
24 #include "ev-ps-exporter.h"
25 #include "ev-document-find.h"
26 #include "gpdf-g-switch.h"
27 #include "ev-document-links.h"
28 #include "ev-document-misc.h"
29 #include "ev-document-thumbnails.h"
31 #include "GlobalParams.h"
32 #include "GDKSplashOutputDev.h"
33 #include "SplashBitmap.h"
36 #include "UnicodeMap.h"
37 #include "GlobalParams.h"
40 #include "goo/GList.h"
41 #include "PSOutputDev.h"
50 PdfDocument *document;
54 /* full results are only possible for the rendered current page */
56 GArray *current_page_results;
57 guchar *other_page_flags; /* length n_pages + 1, first element ignored */
58 int start_page; /* skip this one as we iterate, since we did it first */
59 int search_page; /* the page we're searching now */
60 TextOutputDev *output_dev;
63 typedef struct _PdfDocumentClass PdfDocumentClass;
65 #define PDF_DOCUMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PDF_TYPE_DOCUMENT, PdfDocumentClass))
66 #define PDF_IS_DOCUMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PDF_TYPE_DOCUMENT))
67 #define PDF_DOCUMENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PDF_TYPE_DOCUMENT, PdfDocumentClass))
69 struct _PdfDocumentClass
71 GObjectClass parent_class;
76 GObject parent_instance;
84 GDKSplashOutputDev *out;
92 PdfDocumentSearch *search;
95 static void pdf_document_document_links_iface_init (EvDocumentLinksIface *iface);
96 static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
97 static void pdf_document_document_iface_init (EvDocumentIface *iface);
98 static void pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface);
99 static void pdf_document_find_iface_init (EvDocumentFindIface *iface);
100 static void pdf_document_search_free (PdfDocumentSearch *search);
101 static void pdf_document_search_page_changed (PdfDocumentSearch *search);
103 G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
105 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
106 pdf_document_document_iface_init);
107 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
108 pdf_document_document_links_iface_init);
109 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
110 pdf_document_document_thumbnails_iface_init);
111 G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER,
112 pdf_document_ps_exporter_iface_init);
113 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
114 pdf_document_find_iface_init);
118 document_init_links (PdfDocument *pdf_document)
123 if (pdf_document->links) {
124 delete pdf_document->links;
126 page = pdf_document->doc->getCatalog ()->getPage (pdf_document->page);
127 pdf_document->links = new Links (page->getAnnots (&obj),
128 pdf_document->doc->getCatalog ()->getBaseURI ());
133 document_validate_page (PdfDocument *pdf_document)
135 if (!pdf_document->page_valid) {
136 pdf_document->doc->displayPage (pdf_document->out, pdf_document->page,
137 72 * pdf_document->scale,
138 72 * pdf_document->scale,
141 document_init_links (pdf_document);
143 pdf_document->page_valid = TRUE;
145 /* Update the search results available to the app since
146 * we only provide full results on the current page
148 if (pdf_document->search)
149 pdf_document_search_page_changed (pdf_document->search);
152 return pdf_document->page_valid;
156 pdf_document_load (EvDocument *document,
160 PdfDocument *pdf_document = PDF_DOCUMENT (document);
168 globalParams = new GlobalParams("/etc/xpdfrc");
169 globalParams->setupBaseFontsFc(NULL);
172 if (! pdf_document->umap) {
173 enc = new GString("UTF-8");
174 pdf_document->umap = globalParams->getUnicodeMap(enc);
175 pdf_document->umap->incRefCnt ();
179 filename = g_filename_from_uri (uri, NULL, error);
183 filename_g = new GString (filename);
186 // open the PDF file, assumes ownership of filename_g
187 newDoc = new PDFDoc(filename_g, 0, 0);
189 if (!newDoc->isOk()) {
190 err = newDoc->getErrorCode();
193 /* FIXME: Add a real error enum to EvDocument */
194 g_set_error (error, G_FILE_ERROR,
196 "Failed to load document (error %d) '%s'\n",
203 if (pdf_document->doc)
204 delete pdf_document->doc;
205 pdf_document->doc = newDoc;
207 pdf_document->page = 1;
209 if (pdf_document->out)
210 pdf_document->out->startDoc(pdf_document->doc->getXRef());
212 pdf_document->page_valid = FALSE;
214 g_object_notify (G_OBJECT (pdf_document), "title");
220 pdf_document_save (EvDocument *document,
224 PdfDocument *pdf_document = PDF_DOCUMENT (document);
226 gboolean retval = FALSE;
228 filename = g_filename_from_uri (uri, NULL, error);
229 if (filename != NULL) {
230 GString *fname = new GString (filename);
232 retval = pdf_document->doc->saveAs (fname);
239 pdf_document_get_n_pages (EvDocument *document)
241 PdfDocument *pdf_document = PDF_DOCUMENT (document);
243 if (pdf_document->doc)
244 return pdf_document->doc->getNumPages();
250 pdf_document_set_page (EvDocument *document,
253 PdfDocument *pdf_document = PDF_DOCUMENT (document);
255 page = CLAMP (page, 1, ev_document_get_n_pages (document));
257 if (page != pdf_document->page) {
258 pdf_document->page = page;
259 pdf_document->page_valid = FALSE;
262 ev_document_changed (document);
266 pdf_document_get_page (EvDocument *document)
268 PdfDocument *pdf_document = PDF_DOCUMENT (document);
270 return pdf_document->page;
274 redraw_callback (void *data)
276 /* Need to hook up through a EvDocument callback? */
280 pdf_document_set_target (EvDocument *document,
283 PdfDocument *pdf_document = PDF_DOCUMENT (document);
285 if (pdf_document->target != target) {
286 if (pdf_document->target)
287 g_object_unref (pdf_document->target);
289 pdf_document->target = target;
291 if (pdf_document->target)
292 g_object_ref (pdf_document->target);
294 if (pdf_document->out) {
295 delete pdf_document->out;
296 pdf_document->out = NULL;
299 if (pdf_document->target) {
300 pdf_document->out = new GDKSplashOutputDev (gdk_drawable_get_screen (pdf_document->target),
301 redraw_callback, (void*) document);
303 if (pdf_document->doc)
304 pdf_document->out->startDoc(pdf_document->doc->getXRef());
308 pdf_document->page_valid = FALSE;
313 pdf_document_set_scale (EvDocument *document,
316 PdfDocument *pdf_document = PDF_DOCUMENT (document);
318 if (pdf_document->scale != scale) {
319 pdf_document->scale = scale;
320 pdf_document->page_valid = FALSE;
325 pdf_document_set_page_offset (EvDocument *document,
329 PdfDocument *pdf_document = PDF_DOCUMENT (document);
331 pdf_document->page_x_offset = x;
332 pdf_document->page_y_offset = y;
336 pdf_document_get_page_size (EvDocument *document,
340 PdfDocument *pdf_document = PDF_DOCUMENT (document);
342 if (document_validate_page (pdf_document)) {
344 *width = pdf_document->out->getBitmapWidth();
346 *height = pdf_document->out->getBitmapHeight();
356 pdf_document_render (EvDocument *document,
362 PdfDocument *pdf_document = PDF_DOCUMENT (document);
366 if (!document_validate_page (pdf_document) || !pdf_document->target)
369 page.x = pdf_document->page_x_offset;
370 page.y = pdf_document->page_y_offset;
371 page.width = pdf_document->out->getBitmapWidth();
372 page.height = pdf_document->out->getBitmapHeight();
376 draw.width = clip_width;
377 draw.height = clip_height;
379 if (gdk_rectangle_intersect (&page, &draw, &draw))
380 pdf_document->out->redraw (draw.x - page.x, draw.y - page.y,
381 pdf_document->target,
383 draw.width, draw.height);
387 pdf_document_search_emit_found (PdfDocumentSearch *search)
389 PdfDocument *pdf_document = search->document;
395 n_pages = ev_document_get_n_pages (EV_DOCUMENT (search->document));
396 if (search->search_page > search->start_page) {
397 pages_done = search->search_page - search->start_page;
398 } else if (search->search_page == search->start_page) {
399 pages_done = n_pages;
401 pages_done = n_pages - search->start_page + search->search_page;
404 tmp_results = g_array_new (FALSE, FALSE, sizeof (EvFindResult));
405 g_array_append_vals (tmp_results,
406 search->current_page_results->data,
407 search->current_page_results->len);
409 /* Now append a bogus element for each page that has a result in it,
410 * that is not the current page
413 while (i <= n_pages) {
414 if (i != pdf_document->page &&
415 search->other_page_flags[i]) {
420 /* Use bogus coordinates, again we can't get coordinates
421 * until this is the current page because TextOutputDev
424 result.highlight_area.x = -1;
425 result.highlight_area.y = -1;
426 result.highlight_area.width = 1;
427 result.highlight_area.height = 1;
429 g_array_append_val (tmp_results, result);
435 ev_document_find_found (EV_DOCUMENT_FIND (pdf_document),
436 (EvFindResult*) tmp_results->data,
438 pages_done / (double) n_pages);
440 g_array_free (tmp_results, TRUE);
444 pdf_document_search_page_changed (PdfDocumentSearch *search)
446 PdfDocument *pdf_document = search->document;
449 int xMin, yMin, xMax, yMax;
451 current_page = pdf_document->page;
453 if (!pdf_document->page_valid) {
454 /* we can't do anything until displayPage() */
455 search->current_page = -1;
459 if (search->current_page == current_page)
462 /* We need to create current_page_results for the new current page */
463 g_array_set_size (search->current_page_results, 0);
465 if (pdf_document->out->findText (search->ucs4, search->ucs4_len,
466 gTrue, gTrue, // startAtTop, stopAtBottom
467 gFalse, gFalse, // startAtLast, stopAtLast
468 &xMin, &yMin, &xMax, &yMax)) {
469 result.page_num = pdf_document->page;
471 result.highlight_area.x = xMin;
472 result.highlight_area.y = yMin;
473 result.highlight_area.width = xMax - xMin;
474 result.highlight_area.height = yMax - yMin;
476 g_array_append_val (search->current_page_results, result);
477 /* Now find further results */
479 while (pdf_document->out->findText (search->ucs4, search->ucs4_len,
482 &xMin, &yMin, &xMax, &yMax)) {
484 result.page_num = pdf_document->page;
486 result.highlight_area.x = xMin;
487 result.highlight_area.y = yMin;
488 result.highlight_area.width = xMax - xMin;
489 result.highlight_area.height = yMax - yMin;
491 g_array_append_val (search->current_page_results, result);
495 /* needed for the initial current page since we don't search
498 search->other_page_flags[current_page] =
499 search->current_page_results->len > 0;
501 pdf_document_search_emit_found (search);
505 pdf_document_search_idle_callback (void *data)
507 PdfDocumentSearch *search = (PdfDocumentSearch*) data;
508 PdfDocument *pdf_document = search->document;
510 double xMin, yMin, xMax, yMax;
512 /* Note that PDF page count is 1 through n_pages INCLUSIVE
513 * like a real book. We are looking to add one result for each
514 * page with a match, because the coordinates are meaningless
515 * with TextOutputDev, so we just want to flag matching pages
516 * and then when the user switches to the current page, we
517 * will emit "found" again with the real results.
519 n_pages = ev_document_get_n_pages (EV_DOCUMENT (search->document));
521 if (search->search_page == search->start_page) {
525 if (search->output_dev == 0) {
526 /* First time through here... */
527 search->output_dev = new TextOutputDev (NULL, gTrue, gFalse, gFalse);
528 if (!search->output_dev->isOk()) {
533 pdf_document->doc->displayPage (search->output_dev,
535 72, 72, 0, gTrue, gFalse);
537 if (search->output_dev->findText (search->ucs4,
539 gTrue, gTrue, // startAtTop, stopAtBottom
540 gFalse, gFalse, // startAtLast, stopAtLast
541 &xMin, &yMin, &xMax, &yMax)) {
542 /* This page has results */
543 search->other_page_flags[search->search_page] = TRUE;
546 search->search_page += 1;
547 if (search->search_page > n_pages) {
549 search->search_page = 1;
552 /* We do this even if nothing was found, to update the percent complete */
553 pdf_document_search_emit_found (search);
559 search->idle = 0; /* will return FALSE to remove */
564 pdf_document_find_begin (EvDocumentFind *document,
565 const char *search_string,
566 gboolean case_sensitive)
568 PdfDocument *pdf_document = PDF_DOCUMENT (document);
569 PdfDocumentSearch *search;
574 /* FIXME handle case_sensitive (right now XPDF
575 * code is always case insensitive for ASCII
576 * and case sensitive for all other languaages)
579 g_assert (sizeof (gunichar) == sizeof (Unicode));
580 ucs4 = g_utf8_to_ucs4_fast (search_string, -1,
583 if (pdf_document->search &&
584 pdf_document->search->ucs4_len == ucs4_len &&
585 memcmp (pdf_document->search->ucs4,
587 sizeof (gunichar) * ucs4_len) == 0) {
588 /* Search is unchanged */
593 if (pdf_document->search) {
594 pdf_document_search_free (pdf_document->search);
595 pdf_document->search = NULL;
598 search = g_new0 (PdfDocumentSearch, 1);
601 search->ucs4_len = ucs4_len;
603 search->current_page_results = g_array_new (FALSE,
605 sizeof (EvFindResult));
606 n_pages = ev_document_get_n_pages (EV_DOCUMENT (document));
608 /* This is an array of bool; with the first value ignored
609 * so we can index by the based-at-1 page numbers
611 search->other_page_flags = g_new0 (guchar, n_pages + 1);
613 search->document = pdf_document;
615 /* We add at low priority so the progress bar repaints */
616 search->idle = g_idle_add_full (G_PRIORITY_LOW,
617 pdf_document_search_idle_callback,
621 search->output_dev = 0;
623 search->start_page = pdf_document->page;
624 search->search_page = search->start_page + 1;
625 if (search->search_page > n_pages)
626 search->search_page = 1;
628 search->current_page = -1;
630 pdf_document->search = search;
632 /* Update for the current page right away */
633 pdf_document_search_page_changed (search);
637 pdf_document_find_cancel (EvDocumentFind *document)
639 PdfDocument *pdf_document = PDF_DOCUMENT (document);
641 if (pdf_document->search) {
642 pdf_document_search_free (pdf_document->search);
643 pdf_document->search = NULL;
648 pdf_document_search_free (PdfDocumentSearch *search)
650 if (search->idle != 0)
651 g_source_remove (search->idle);
653 if (search->output_dev)
654 delete search->output_dev;
656 g_array_free (search->current_page_results, TRUE);
657 g_free (search->other_page_flags);
659 g_free (search->ucs4);
664 pdf_document_ps_export_begin (EvPSExporter *exporter, const char *filename)
666 PdfDocument *document = PDF_DOCUMENT (exporter);
668 if (document->ps_out)
669 delete document->ps_out;
671 document->ps_out = new PSOutputDev ((char *)filename, document->doc->getXRef(),
672 document->doc->getCatalog(), 1,
673 ev_document_get_n_pages (EV_DOCUMENT (document)),
678 pdf_document_ps_export_do_page (EvPSExporter *exporter, int page)
680 PdfDocument *document = PDF_DOCUMENT (exporter);
682 document->doc->displayPage (document->ps_out, page,
683 72.0, 72.0, 0, gTrue, gFalse);
687 pdf_document_ps_export_end (EvPSExporter *exporter)
689 PdfDocument *document = PDF_DOCUMENT (exporter);
691 delete document->ps_out;
692 document->ps_out = NULL;
696 /* EvDocumentLinks Implementation */
699 /* goo GList, not glib */
706 unicode_to_char (OutlineItem *outline_item,
710 gchar buf[8]; /* 8 is enough for mapping an unicode char to a string */
713 for (i = 0; i < outline_item->getTitleLength(); ++i) {
714 n = uMap->mapUnicode(outline_item->getTitle()[i], buf, sizeof(buf));
718 return g_strdup (gstr.getCString ());
723 pdf_document_links_has_document_links (EvDocumentLinks *document_links)
725 PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
728 g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
730 outline = pdf_document->doc->getOutline();
731 if (outline->getItems() != NULL &&
732 outline->getItems()->getLength() > 0)
738 static EvDocumentLinksIter *
739 pdf_document_links_begin_read (EvDocumentLinks *document_links)
741 PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
746 g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), NULL);
748 outline = pdf_document->doc->getOutline();
749 items = outline->getItems();
753 iter = g_new0 (LinksIter, 1);
758 return (EvDocumentLinksIter *) iter;
762 build_link_from_action (PdfDocument *pdf_document,
763 LinkAction *link_action,
768 if (link_action == NULL) {
769 link = ev_link_new_title (title);
770 } else if (link_action->getKind () == actionGoTo) {
777 link_goto = dynamic_cast <LinkGoTo *> (link_action);
778 link_dest = link_goto->getDest ();
779 named_dest = link_goto->getNamedDest ();
781 /* Wow! This seems excessively slow on large
782 * documents. I need to investigate more... -jrb */
783 if (link_dest != NULL) {
784 link_dest = link_dest->copy ();
785 } else if (named_dest != NULL) {
786 named_dest = named_dest->copy ();
787 link_dest = pdf_document->doc->findDest (named_dest);
790 if (link_dest != NULL) {
791 if (link_dest->isPageRef ()) {
792 page_ref = link_dest->getPageRef ();
793 page_num = pdf_document->doc->findPage (page_ref.num, page_ref.gen);
795 page_num = link_dest->getPageNum ();
800 link = ev_link_new_page (title, page_num);
801 } else if (link_action->getKind () == actionURI) {
804 link_uri = dynamic_cast <LinkURI *> (link_action);
805 link = ev_link_new_external
806 (title, link_uri->getURI()->getCString());
807 } else if (link_action->getKind () == actionNamed) {
814 /* FIXME This returns a new object every time, probably we should cache it
817 pdf_document_links_get_link (EvDocumentLinks *document_links,
818 EvDocumentLinksIter *links_iter)
820 PdfDocument *pdf_document = PDF_DOCUMENT (document_links);
821 LinksIter *iter = (LinksIter *)links_iter;
823 LinkAction *link_action;
827 g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
828 g_return_val_if_fail (iter != NULL, FALSE);
830 anItem = (OutlineItem *)iter->items->get(iter->index);
831 link_action = anItem->getAction ();
832 link_title = anItem->getTitle ();
833 title = unicode_to_char (anItem, pdf_document->umap);
835 return build_link_from_action (pdf_document, link_action, title);
838 static EvDocumentLinksIter *
839 pdf_document_links_get_child (EvDocumentLinks *document_links,
840 EvDocumentLinksIter *links_iter)
842 LinksIter *iter = (LinksIter *)links_iter;
843 LinksIter *child_iter;
846 g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
848 anItem = (OutlineItem *)iter->items->get(iter->index);
850 if (! (anItem->hasKids() && anItem->getKids()) )
853 child_iter = g_new0 (LinksIter, 1);
854 child_iter->index = 0;
855 child_iter->level = iter->level + 1;
856 child_iter->items = anItem->getKids ();
857 g_assert (child_iter->items);
859 return (EvDocumentLinksIter *) child_iter;
863 pdf_document_links_next (EvDocumentLinks *document_links,
864 EvDocumentLinksIter *links_iter)
866 LinksIter *iter = (LinksIter *) links_iter;
868 g_return_val_if_fail (PDF_IS_DOCUMENT (document_links), FALSE);
871 if (iter->index >= iter->items->getLength())
878 pdf_document_links_free_iter (EvDocumentLinks *document_links,
879 EvDocumentLinksIter *iter)
881 g_return_if_fail (PDF_IS_DOCUMENT (document_links));
882 g_return_if_fail (iter != NULL);
884 /* FIXME: Should I close all the nodes?? Free them? */
889 pdf_document_finalize (GObject *object)
891 PdfDocument *pdf_document = PDF_DOCUMENT (object);
893 if (pdf_document->links) {
894 delete pdf_document->links;
897 if (pdf_document->umap) {
898 pdf_document->umap->decRefCnt ();
899 pdf_document->umap = NULL;
902 if (pdf_document->search)
903 pdf_document_search_free (pdf_document->search);
905 if (pdf_document->target)
906 g_object_unref (pdf_document->target);
908 if (pdf_document->out)
909 delete pdf_document->out;
910 if (pdf_document->ps_out)
911 delete pdf_document->ps_out;
912 if (pdf_document->doc)
913 delete pdf_document->doc;
918 pdf_document_set_property (GObject *object,
933 has_unicode_marker (GString *string)
935 return ((string->getChar (0) & 0xff) == 0xfe &&
936 (string->getChar (1) & 0xff) == 0xff);
940 pdf_info_dict_get_string (Dict *info_dict, const gchar *key) {
945 g_return_val_if_fail (info_dict != NULL, NULL);
946 g_return_val_if_fail (key != NULL, NULL);
948 if (!info_dict->lookup ((gchar *)key, &obj)->isString ()) {
953 value = obj.getString ();
955 if (has_unicode_marker (value)) {
956 result = g_convert (value->getCString () + 2,
957 value->getLength () - 2,
958 "UTF-8", "UTF-16BE", NULL, NULL, NULL);
960 result = g_strndup (value->getCString (), value->getLength ());
969 pdf_document_get_title (PdfDocument *pdf_document)
974 pdf_document->doc->getDocInfo (&info);
976 if (info.isDict ()) {
977 title = pdf_info_dict_get_string (info.getDict(), "Title");
984 pdf_document_get_text (EvDocument *document, GdkRectangle *rect)
986 PdfDocument *pdf_document = PDF_DOCUMENT (document);
987 GString *sel_text = new GString;
993 x2 = x1 + rect->width;
994 y2 = y1 + rect->height;
996 sel_text = pdf_document->out->getText (x1, y1, x2, y2);
997 text = sel_text->getCString ();
999 return text ? g_strdup (text) : NULL;
1003 pdf_document_get_link (EvDocument *document, int x, int y)
1005 PdfDocument *pdf_document = PDF_DOCUMENT (document);
1008 action = pdf_document->links->find (x, y);
1010 return build_link_from_action (pdf_document, action, "");
1017 pdf_document_get_property (GObject *object,
1022 PdfDocument *pdf_document = PDF_DOCUMENT (object);
1028 title = pdf_document_get_title (pdf_document);
1029 g_value_set_string (value, title);
1036 pdf_document_class_init (PdfDocumentClass *klass)
1038 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
1040 gobject_class->finalize = pdf_document_finalize;
1041 gobject_class->get_property = pdf_document_get_property;
1042 gobject_class->set_property = pdf_document_set_property;
1044 g_object_class_override_property (gobject_class, PROP_TITLE, "title");
1048 pdf_document_document_iface_init (EvDocumentIface *iface)
1050 iface->load = pdf_document_load;
1051 iface->save = pdf_document_save;
1052 iface->get_text = pdf_document_get_text;
1053 iface->get_link = pdf_document_get_link;
1054 iface->get_n_pages = pdf_document_get_n_pages;
1055 iface->set_page = pdf_document_set_page;
1056 iface->get_page = pdf_document_get_page;
1057 iface->set_scale = pdf_document_set_scale;
1058 iface->set_target = pdf_document_set_target;
1059 iface->set_page_offset = pdf_document_set_page_offset;
1060 iface->get_page_size = pdf_document_get_page_size;
1061 iface->render = pdf_document_render;
1065 pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface)
1067 iface->begin = pdf_document_ps_export_begin;
1068 iface->do_page = pdf_document_ps_export_do_page;
1069 iface->end = pdf_document_ps_export_end;
1074 pdf_document_find_iface_init (EvDocumentFindIface *iface)
1076 iface->begin = pdf_document_find_begin;
1077 iface->cancel = pdf_document_find_cancel;
1081 pdf_document_document_links_iface_init (EvDocumentLinksIface *iface)
1083 iface->has_document_links = pdf_document_links_has_document_links;
1084 iface->begin_read = pdf_document_links_begin_read;
1085 iface->get_link = pdf_document_links_get_link;
1086 iface->get_child = pdf_document_links_get_child;
1087 iface->next = pdf_document_links_next;
1088 iface->free_iter = pdf_document_links_free_iter;
1094 bitmap_to_pixbuf (SplashBitmap *bitmap,
1101 SplashColorPtr dataPtr;
1104 gboolean target_has_alpha;
1105 gint target_rowstride;
1106 guchar *target_data;
1108 width = bitmap->getWidth ();
1109 height = bitmap->getHeight ();
1111 if (width + x_offset > gdk_pixbuf_get_width (target))
1112 width = gdk_pixbuf_get_width (target) - x_offset;
1113 if (height + y_offset > gdk_pixbuf_get_height (target))
1114 height = gdk_pixbuf_get_height (target) - x_offset;
1116 target_has_alpha = gdk_pixbuf_get_has_alpha (target);
1117 target_rowstride = gdk_pixbuf_get_rowstride (target);
1118 target_data = gdk_pixbuf_get_pixels (target);
1120 dataPtr = bitmap->getDataPtr ();
1122 for (y = 0; y < height; y++) {
1127 p = dataPtr.rgb8 + y * width;
1128 q = target_data + ((y + y_offset) * target_rowstride +
1129 x_offset * (target_has_alpha?4:3));
1130 for (x = 0; x < width; x++) {
1133 *q++ = splashRGB8R (rgb);
1134 *q++ = splashRGB8G (rgb);
1135 *q++ = splashRGB8B (rgb);
1137 if (target_has_alpha)
1147 pdf_document_thumbnails_get_page_pixbuf (PdfDocument *pdf_document,
1148 gdouble scale_factor,
1153 SplashOutputDev *output;
1157 color.rgb8 = splashMakeRGB8 (255, 255, 255);
1159 output = new SplashOutputDev (splashModeRGB8, gFalse, color);
1160 output->startDoc (pdf_document->doc->getXRef());
1161 pdf_document->doc->displayPage (output,
1167 pixbuf = ev_document_misc_get_thumbnail_frame (output->getBitmap()->getWidth(),
1168 output->getBitmap()->getHeight(),
1170 bitmap_to_pixbuf (output->getBitmap(), pixbuf, 1, 1);
1177 pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
1179 gint suggested_width,
1183 PdfDocument *pdf_document = PDF_DOCUMENT (document_thumbnails);
1186 Thumb *thumb = NULL;
1189 /* getPage seems to want page + 1 for some reason; */
1190 the_page = pdf_document->doc->getCatalog ()->getPage (page + 1);
1191 the_page->getThumb (&the_thumb);
1193 if (!(the_thumb.isNull () || the_thumb.isNone())) {
1194 /* Build the thumbnail object */
1195 thumb = new Thumb(pdf_document->doc->getXRef (),
1198 *width = thumb->getWidth ();
1199 *height = thumb->getHeight ();
1201 page_ratio = the_page->getHeight () / the_page->getWidth ();
1202 *width = suggested_width;
1203 *height = (gint) (suggested_width * page_ratio);
1208 pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails,
1212 PdfDocument *pdf_document = PDF_DOCUMENT (document_thumbnails);
1213 GdkPixbuf *thumbnail;
1216 Thumb *thumb = NULL;
1217 gboolean have_ethumbs = FALSE;
1221 /* getPage seems to want page + 1 for some reason; */
1222 the_page = pdf_document->doc->getCatalog ()->getPage (page + 1);
1223 the_page->getThumb(&the_thumb);
1225 page_ratio = the_page->getHeight () / the_page->getWidth ();
1226 dest_height = (gint) (width * page_ratio);
1229 if (!(the_thumb.isNull () || the_thumb.isNone())) {
1230 /* Build the thumbnail object */
1231 thumb = new Thumb(pdf_document->doc->getXRef (),
1234 have_ethumbs = thumb->ok();
1239 GdkPixbuf *tmp_pixbuf;
1241 data = thumb->getPixbufData();
1242 tmp_pixbuf = gdk_pixbuf_new_from_data (data,
1247 thumb->getHeight (),
1248 thumb->getWidth () * 3,
1250 /* FIXME: do we want to check that the thumb's size isn't ridiculous?? */
1251 thumbnail = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf);
1252 g_object_unref (tmp_pixbuf);
1254 gdouble scale_factor;
1256 scale_factor = (gdouble)width / the_page->getWidth ();
1258 thumbnail = pdf_document_thumbnails_get_page_pixbuf (pdf_document,
1268 pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
1270 iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
1271 iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
1276 pdf_document_init (PdfDocument *pdf_document)
1278 pdf_document->page = 1;
1279 pdf_document->page_x_offset = 0;
1280 pdf_document->page_y_offset = 0;
1281 pdf_document->scale = 1.;
1283 pdf_document->page_valid = FALSE;