X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=pdf%2Fxpdf%2Fpdf-document.cc;h=51ade189877dae2aefd5f1c8a98e62d7e60777cd;hb=e48cf2858b65aa026771a48d2b315cbc663d8234;hp=a25f663030b57926fa6dc02978b9b8c52100d1d1;hpb=d97441740d457e1463083d561afdb719ca99e66b;p=evince.git diff --git a/pdf/xpdf/pdf-document.cc b/pdf/xpdf/pdf-document.cc index a25f6630..51ade189 100644 --- a/pdf/xpdf/pdf-document.cc +++ b/pdf/xpdf/pdf-document.cc @@ -1,3 +1,4 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ /* pdfdocument.h: Implementation of EvDocument for PDF * Copyright (C) 2004, Red Hat, Inc. * @@ -16,13 +17,46 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include + #include "gpdf-g-switch.h" #include "pdf-document.h" +#include "ev-ps-exporter.h" +#include "ev-document-find.h" #include "gpdf-g-switch.h" +#include "ev-document-bookmarks.h" +#include "ev-document-thumbnails.h" #include "GlobalParams.h" #include "GDKSplashOutputDev.h" #include "PDFDoc.h" +#include "Outline.h" +#include "UnicodeMap.h" +#include "GlobalParams.h" +#include "GfxState.h" +#include "Thumb.h" +#include "goo/GList.h" +#include "PSOutputDev.h" + +enum { + PROP_0, + PROP_TITLE +}; + +typedef struct +{ + PdfDocument *document; + gunichar *ucs4; + glong ucs4_len; + guint idle; + /* full results are only possible for the rendered current page */ + int current_page; + GArray *current_page_results; + guchar *other_page_flags; /* length n_pages + 1, first element ignored */ + int start_page; /* skip this one as we iterate, since we did it first */ + int search_page; /* the page we're searching now */ + TextOutputDev *output_dev; +} PdfDocumentSearch; typedef struct _PdfDocumentClass PdfDocumentClass; @@ -46,16 +80,36 @@ struct _PdfDocument GdkDrawable *target; GDKSplashOutputDev *out; + PSOutputDev *ps_out; PDFDoc *doc; + UnicodeMap *umap; gboolean page_valid; + + PdfDocumentSearch *search; }; -static void pdf_document_document_iface_init (EvDocumentIface *iface); +static void pdf_document_document_bookmarks_iface_init (EvDocumentBookmarksIface *iface); +static void pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface); +static void pdf_document_document_iface_init (EvDocumentIface *iface); +static void pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface); +static void pdf_document_find_iface_init (EvDocumentFindIface *iface); +static void pdf_document_search_free (PdfDocumentSearch *search); +static void pdf_document_search_page_changed (PdfDocumentSearch *search); G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT, - { G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, - pdf_document_document_iface_init) }); + { + G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT, + pdf_document_document_iface_init); + G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_BOOKMARKS, + pdf_document_document_bookmarks_iface_init); + G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, + pdf_document_document_thumbnails_iface_init); + G_IMPLEMENT_INTERFACE (EV_TYPE_PS_EXPORTER, + pdf_document_ps_exporter_iface_init); + G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND, + pdf_document_find_iface_init); + }); static gboolean document_validate_page (PdfDocument *pdf_document) @@ -65,9 +119,17 @@ document_validate_page (PdfDocument *pdf_document) 72 * pdf_document->scale, 72 * pdf_document->scale, 0, gTrue, gTrue); - + pdf_document->page_valid = TRUE; + + /* Update the search results available to the app since + * we only provide full results on the current page + */ + if (pdf_document->search) + pdf_document_search_page_changed (pdf_document->search); } + + return pdf_document->page_valid; } static gboolean @@ -80,10 +142,18 @@ pdf_document_load (EvDocument *document, int err; char *filename; GString *filename_g; - + GString *enc; + if (!globalParams) { globalParams = new GlobalParams("/etc/xpdfrc"); - globalParams->setupBaseFonts(NULL); + globalParams->setupBaseFontsFc(NULL); + } + + if (! pdf_document->umap) { + enc = new GString("UTF-8"); + pdf_document->umap = globalParams->getUnicodeMap(enc); + pdf_document->umap->incRefCnt (); + delete enc; } filename = g_filename_from_uri (uri, NULL, error); @@ -106,7 +176,7 @@ pdf_document_load (EvDocument *document, "Failed to load document (error %d) '%s'\n", err, uri); - + return FALSE; } @@ -120,7 +190,9 @@ pdf_document_load (EvDocument *document, pdf_document->out->startDoc(pdf_document->doc->getXRef()); pdf_document->page_valid = FALSE; - + + g_object_notify (G_OBJECT (pdf_document), "title"); + return TRUE; } @@ -148,6 +220,7 @@ pdf_document_set_page (EvDocument *document, pdf_document->page_valid = FALSE; } + ev_document_changed (document); } static int @@ -169,11 +242,11 @@ pdf_document_set_target (EvDocument *document, GdkDrawable *target) { PdfDocument *pdf_document = PDF_DOCUMENT (document); - + if (pdf_document->target != target) { if (pdf_document->target) g_object_unref (pdf_document->target); - + pdf_document->target = target; if (pdf_document->target) @@ -202,7 +275,7 @@ pdf_document_set_scale (EvDocument *document, double scale) { PdfDocument *pdf_document = PDF_DOCUMENT (document); - + if (pdf_document->scale != scale) { pdf_document->scale = scale; pdf_document->page_valid = FALSE; @@ -215,7 +288,7 @@ pdf_document_set_page_offset (EvDocument *document, int y) { PdfDocument *pdf_document = PDF_DOCUMENT (document); - + pdf_document->page_x_offset = x; pdf_document->page_y_offset = y; } @@ -253,7 +326,7 @@ pdf_document_render (EvDocument *document, if (!document_validate_page (pdf_document) || !pdf_document->target) return; - + page.x = pdf_document->page_x_offset; page.y = pdf_document->page_y_offset; page.width = pdf_document->out->getBitmapWidth(); @@ -263,7 +336,7 @@ pdf_document_render (EvDocument *document, draw.y = clip_y; draw.width = clip_width; draw.height = clip_height; - + if (gdk_rectangle_intersect (&page, &draw, &draw)) pdf_document->out->redraw (draw.x - page.x, draw.y - page.y, pdf_document->target, @@ -271,27 +344,630 @@ pdf_document_render (EvDocument *document, draw.width, draw.height); } +static void +pdf_document_search_emit_found (PdfDocumentSearch *search) +{ + PdfDocument *pdf_document = search->document; + int n_pages; + int pages_done; + GArray *tmp_results; + int i; + + n_pages = ev_document_get_n_pages (EV_DOCUMENT (search->document)); + if (search->search_page > search->start_page) { + pages_done = search->search_page - search->start_page; + } else if (search->search_page == search->start_page) { + pages_done = n_pages; + } else { + pages_done = n_pages - search->start_page + search->search_page; + } + + tmp_results = g_array_new (FALSE, FALSE, sizeof (EvFindResult)); + g_array_append_vals (tmp_results, + search->current_page_results->data, + search->current_page_results->len); + + /* Now append a bogus element for each page that has a result in it, + * that is not the current page + */ + i = 1; + while (i <= n_pages) { + if (i != pdf_document->page && + search->other_page_flags[i]) { + EvFindResult result; + + result.page_num = i; + + /* Use bogus coordinates, again we can't get coordinates + * until this is the current page because TextOutputDev + * isn't good enough + */ + result.highlight_area.x = -1; + result.highlight_area.y = -1; + result.highlight_area.width = 1; + result.highlight_area.height = 1; + + g_array_append_val (tmp_results, result); + } + + ++i; + } + + ev_document_find_found (EV_DOCUMENT_FIND (pdf_document), + (EvFindResult*) tmp_results->data, + tmp_results->len, + pages_done / (double) n_pages); + + g_array_free (tmp_results, TRUE); +} + +static void +pdf_document_search_page_changed (PdfDocumentSearch *search) +{ + PdfDocument *pdf_document = search->document; + int current_page; + EvFindResult result; + int xMin, yMin, xMax, yMax; + + current_page = pdf_document->page; + + if (!pdf_document->page_valid) { + /* we can't do anything until displayPage() */ + search->current_page = -1; + return; + } + + if (search->current_page == current_page) + return; + + /* We need to create current_page_results for the new current page */ + g_array_set_size (search->current_page_results, 0); + + if (pdf_document->out->findText (search->ucs4, search->ucs4_len, + gTrue, gTrue, // startAtTop, stopAtBottom + gFalse, gFalse, // startAtLast, stopAtLast + &xMin, &yMin, &xMax, &yMax)) { + result.page_num = pdf_document->page; + + result.highlight_area.x = xMin; + result.highlight_area.y = yMin; + result.highlight_area.width = xMax - xMin; + result.highlight_area.height = yMax - yMin; + + g_array_append_val (search->current_page_results, result); + /* Now find further results */ + + while (pdf_document->out->findText (search->ucs4, search->ucs4_len, + gFalse, gTrue, + gTrue, gFalse, + &xMin, &yMin, &xMax, &yMax)) { + + result.page_num = pdf_document->page; + + result.highlight_area.x = xMin; + result.highlight_area.y = yMin; + result.highlight_area.width = xMax - xMin; + result.highlight_area.height = yMax - yMin; + + g_array_append_val (search->current_page_results, result); + } + } + + /* needed for the initial current page since we don't search + * it in the idle + */ + search->other_page_flags[current_page] = + search->current_page_results->len > 0; + + pdf_document_search_emit_found (search); +} + +static gboolean +pdf_document_search_idle_callback (void *data) +{ + PdfDocumentSearch *search = (PdfDocumentSearch*) data; + PdfDocument *pdf_document = search->document; + int n_pages; + double xMin, yMin, xMax, yMax; + + /* Note that PDF page count is 1 through n_pages INCLUSIVE + * like a real book. We are looking to add one result for each + * page with a match, because the coordinates are meaningless + * with TextOutputDev, so we just want to flag matching pages + * and then when the user switches to the current page, we + * will emit "found" again with the real results. + */ + n_pages = ev_document_get_n_pages (EV_DOCUMENT (search->document)); + + if (search->search_page == search->start_page) { + goto end_search; + } + + if (search->output_dev == 0) { + /* First time through here... */ + search->output_dev = new TextOutputDev (NULL, gTrue, gFalse, gFalse); + if (!search->output_dev->isOk()) { + goto end_search; + } + } + + pdf_document->doc->displayPage (search->output_dev, + search->search_page, + 72, 72, 0, gTrue, gFalse); + + if (search->output_dev->findText (search->ucs4, + search->ucs4_len, + gTrue, gTrue, // startAtTop, stopAtBottom + gFalse, gFalse, // startAtLast, stopAtLast + &xMin, &yMin, &xMax, &yMax)) { + /* This page has results */ + search->other_page_flags[search->search_page] = TRUE; + } + + search->search_page += 1; + if (search->search_page > n_pages) { + /* wrap around */ + search->search_page = 1; + } + + /* We do this even if nothing was found, to update the percent complete */ + pdf_document_search_emit_found (search); + + return TRUE; + + end_search: + /* We're done. */ + search->idle = 0; /* will return FALSE to remove */ + return FALSE; +} + +static void +pdf_document_find_begin (EvDocumentFind *document, + const char *search_string, + gboolean case_sensitive) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document); + PdfDocumentSearch *search; + int n_pages; + gunichar *ucs4; + glong ucs4_len; + + /* FIXME handle case_sensitive (right now XPDF + * code is always case insensitive for ASCII + * and case sensitive for all other languaages) + */ + + g_assert (sizeof (gunichar) == sizeof (Unicode)); + ucs4 = g_utf8_to_ucs4_fast (search_string, -1, + &ucs4_len); + + if (pdf_document->search && + pdf_document->search->ucs4_len == ucs4_len && + memcmp (pdf_document->search->ucs4, + ucs4, + sizeof (gunichar) * ucs4_len) == 0) { + /* Search is unchanged */ + g_free (ucs4); + return; + } + + if (pdf_document->search) { + pdf_document_search_free (pdf_document->search); + pdf_document->search = NULL; + } + + search = g_new0 (PdfDocumentSearch, 1); + + search->ucs4 = ucs4; + search->ucs4_len = ucs4_len; + + search->current_page_results = g_array_new (FALSE, + FALSE, + sizeof (EvFindResult)); + n_pages = ev_document_get_n_pages (EV_DOCUMENT (document)); + + /* This is an array of bool; with the first value ignored + * so we can index by the based-at-1 page numbers + */ + search->other_page_flags = g_new0 (guchar, n_pages + 1); + + search->document = pdf_document; + + /* We add at low priority so the progress bar repaints */ + search->idle = g_idle_add_full (G_PRIORITY_LOW, + pdf_document_search_idle_callback, + search, + NULL); + + search->output_dev = 0; + + search->start_page = pdf_document->page; + search->search_page = search->start_page + 1; + if (search->search_page > n_pages) + search->search_page = 1; + + search->current_page = -1; + + pdf_document->search = search; + + /* Update for the current page right away */ + pdf_document_search_page_changed (search); +} + +static void +pdf_document_find_cancel (EvDocumentFind *document) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document); + + if (pdf_document->search) { + pdf_document_search_free (pdf_document->search); + pdf_document->search = NULL; + } +} + +static void +pdf_document_search_free (PdfDocumentSearch *search) +{ + if (search->idle != 0) + g_source_remove (search->idle); + + if (search->output_dev) + delete search->output_dev; + + g_array_free (search->current_page_results, TRUE); + g_free (search->other_page_flags); + + g_free (search->ucs4); + g_free (search); +} + +static void +pdf_document_ps_export_begin (EvPSExporter *exporter, const char *filename) +{ + PdfDocument *document = PDF_DOCUMENT (exporter); + + if (document->ps_out) + delete document->ps_out; + + document->ps_out = new PSOutputDev ((char *)filename, document->doc->getXRef(), + document->doc->getCatalog(), 1, + ev_document_get_n_pages (EV_DOCUMENT (document)), + psModePS); +} + +static void +pdf_document_ps_export_do_page (EvPSExporter *exporter, int page) +{ + PdfDocument *document = PDF_DOCUMENT (exporter); + + document->doc->displayPage (document->ps_out, page, + 72.0, 72.0, 0, gTrue, gFalse); +} + +static void +pdf_document_ps_export_end (EvPSExporter *exporter) +{ + PdfDocument *document = PDF_DOCUMENT (exporter); + + delete document->ps_out; + document->ps_out = NULL; +} + + +/* EvDocumentBookmarks Implementation */ +typedef struct +{ + /* goo GList, not glib */ + GList *items; + int index; + int level; +} BookmarksIter; + +static gchar * +unicode_to_char (OutlineItem *outline_item, + UnicodeMap *uMap) +{ + GString gstr; + gchar buf[8]; /* 8 is enough for mapping an unicode char to a string */ + int i, n; + + for (i = 0; i < outline_item->getTitleLength(); ++i) { + n = uMap->mapUnicode(outline_item->getTitle()[i], buf, sizeof(buf)); + gstr.append(buf, n); + } + + return g_strdup (gstr.getCString ()); +} + + +static gboolean +pdf_document_bookmarks_has_document_bookmarks (EvDocumentBookmarks *document_bookmarks) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document_bookmarks); + Outline *outline; + + g_return_val_if_fail (PDF_IS_DOCUMENT (document_bookmarks), FALSE); + + outline = pdf_document->doc->getOutline(); + if (outline->getItems() != NULL && + outline->getItems()->getLength() > 0) + return TRUE; + + return FALSE; +} + +static EvDocumentBookmarksIter * +pdf_document_bookmarks_begin_read (EvDocumentBookmarks *document_bookmarks) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document_bookmarks); + Outline *outline; + BookmarksIter *iter; + GList *items; + + g_return_val_if_fail (PDF_IS_DOCUMENT (document_bookmarks), NULL); + + outline = pdf_document->doc->getOutline(); + items = outline->getItems(); + if (! items) + return NULL; + + iter = g_new0 (BookmarksIter, 1); + iter->items = items; + iter->index = 0; + iter->level = 0; + + return (EvDocumentBookmarksIter *) iter; +} + +static gboolean +pdf_document_bookmarks_get_values (EvDocumentBookmarks *document_bookmarks, + EvDocumentBookmarksIter *bookmarks_iter, + char **title, + EvDocumentBookmarksType *type, + gint *page) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document_bookmarks); + BookmarksIter *iter = (BookmarksIter *)bookmarks_iter; + OutlineItem *anItem; + LinkAction *link_action; + LinkDest *link_dest = NULL; + LinkURI *link_uri = NULL; + LinkGoTo *link_goto = NULL; + GString *named_dest; + Unicode *link_title; + Ref page_ref; + gint page_num = -1; + + g_return_val_if_fail (PDF_IS_DOCUMENT (document_bookmarks), FALSE); + g_return_val_if_fail (iter != NULL, FALSE); + g_return_val_if_fail (title != NULL, FALSE); + g_return_val_if_fail (type != NULL, FALSE); + g_return_val_if_fail (page != NULL, FALSE); + + anItem = (OutlineItem *)iter->items->get(iter->index); + link_action = anItem->getAction (); + link_title = anItem->getTitle (); + + if (link_action) { + switch (link_action->getKind ()) { + + case actionGoTo: + link_goto = dynamic_cast (link_action); + link_dest = link_goto->getDest (); + named_dest = link_goto->getNamedDest (); + + /* Wow! This seems excessively slow on large + * documents. I need to investigate more... -jrb */ + if (link_dest != NULL) { + link_dest = link_dest->copy (); + } else if (named_dest != NULL) { + named_dest = named_dest->copy (); + link_dest = pdf_document->doc->findDest (named_dest); + delete named_dest; + } + if (link_dest != NULL) { + if (link_dest->isPageRef ()) { + page_ref = link_dest->getPageRef (); + page_num = pdf_document->doc->findPage (page_ref.num, page_ref.gen); + } else { + page_num = link_dest->getPageNum (); + } + + delete link_dest; + } + + break; + case actionURI: + link_uri = dynamic_cast (link_action); + break; + + case actionNamed: + /*Skip, for now */ + default: + g_warning ("Unknown link action type: %d", link_action->getKind ()); + } + + *title = g_strdup (unicode_to_char (anItem, pdf_document->umap)); + } else if (link_title) { + *title = g_strdup (unicode_to_char (anItem, pdf_document->umap)); + } + + *type = EV_DOCUMENT_BOOKMARKS_TYPE_LINK; + *page = page_num; + + return TRUE; +} + +static EvDocumentBookmarksIter * +pdf_document_bookmarks_get_child (EvDocumentBookmarks *document_bookmarks, + EvDocumentBookmarksIter *bookmarks_iter) +{ + BookmarksIter *iter = (BookmarksIter *)bookmarks_iter; + BookmarksIter *child_iter; + OutlineItem *anItem; + + g_return_val_if_fail (PDF_IS_DOCUMENT (document_bookmarks), FALSE); + + anItem = (OutlineItem *)iter->items->get(iter->index); + anItem->open (); + if (! (anItem->hasKids() && anItem->getKids()) ) + return NULL; + + child_iter = g_new0 (BookmarksIter, 1); + child_iter->index = 0; + child_iter->level = iter->level + 1; + child_iter->items = anItem->getKids (); + g_assert (child_iter->items); + + return (EvDocumentBookmarksIter *) child_iter; +} + +static gboolean +pdf_document_bookmarks_next (EvDocumentBookmarks *document_bookmarks, + EvDocumentBookmarksIter *bookmarks_iter) +{ + BookmarksIter *iter = (BookmarksIter *) bookmarks_iter; + + g_return_val_if_fail (PDF_IS_DOCUMENT (document_bookmarks), FALSE); + + iter->index++; + if (iter->index >= iter->items->getLength()) + return FALSE; + + return TRUE; +} + +static void +pdf_document_bookmarks_free_iter (EvDocumentBookmarks *document_bookmarks, + EvDocumentBookmarksIter *iter) +{ + g_return_if_fail (PDF_IS_DOCUMENT (document_bookmarks)); + g_return_if_fail (iter != NULL); + + /* FIXME: Should I close all the nodes?? Free them? */ + g_free (iter); +} + static void pdf_document_finalize (GObject *object) { PdfDocument *pdf_document = PDF_DOCUMENT (object); + if (pdf_document->umap) { + pdf_document->umap->decRefCnt (); + pdf_document->umap = NULL; + } + + if (pdf_document->search) + pdf_document_search_free (pdf_document->search); + if (pdf_document->target) g_object_unref (pdf_document->target); if (pdf_document->out) delete pdf_document->out; + if (pdf_document->ps_out) + delete pdf_document->ps_out; if (pdf_document->doc) delete pdf_document->doc; } +static void +pdf_document_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + switch (prop_id) + + { + case PROP_TITLE: + /* read only */ + break; + } +} + +static gboolean +has_unicode_marker (GString *string) +{ + return ((string->getChar (0) & 0xff) == 0xfe && + (string->getChar (1) & 0xff) == 0xff); +} + +static gchar * +pdf_info_dict_get_string (Dict *info_dict, const gchar *key) { + Object obj; + GString *value; + gchar *result; + + g_return_val_if_fail (info_dict != NULL, NULL); + g_return_val_if_fail (key != NULL, NULL); + + if (!info_dict->lookup ((gchar *)key, &obj)->isString ()) { + obj.free (); + return g_strdup (_("Unknown")); + } + + value = obj.getString (); + + if (has_unicode_marker (value)) { + result = g_convert (value->getCString () + 2, + value->getLength () - 2, + "UTF-8", "UTF-16BE", NULL, NULL, NULL); + } else { + result = g_strndup (value->getCString (), value->getLength ()); + } + + obj.free (); + + return result; +} + +static char * +pdf_document_get_title (PdfDocument *pdf_document) +{ + char *title = NULL; + Object info; + + pdf_document->doc->getDocInfo (&info); + + if (info.isDict ()) { + title = pdf_info_dict_get_string (info.getDict(), "Title"); + } + + return title; +} + +static void +pdf_document_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (object); + char *title; + + switch (prop_id) + { + case PROP_TITLE: + title = pdf_document_get_title (pdf_document); + g_value_set_string (value, title); + g_free (title); + break; + } +} + static void pdf_document_class_init (PdfDocumentClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); - + gobject_class->finalize = pdf_document_finalize; + gobject_class->get_property = pdf_document_get_property; + gobject_class->set_property = pdf_document_set_property; + + g_object_class_override_property (gobject_class, PROP_TITLE, "title"); } static void @@ -308,6 +984,138 @@ pdf_document_document_iface_init (EvDocumentIface *iface) iface->render = pdf_document_render; } +static void +pdf_document_ps_exporter_iface_init (EvPSExporterIface *iface) +{ + iface->begin = pdf_document_ps_export_begin; + iface->do_page = pdf_document_ps_export_do_page; + iface->end = pdf_document_ps_export_end; +} + + +static void +pdf_document_find_iface_init (EvDocumentFindIface *iface) +{ + iface->begin = pdf_document_find_begin; + iface->cancel = pdf_document_find_cancel; +} + +static void +pdf_document_document_bookmarks_iface_init (EvDocumentBookmarksIface *iface) +{ + iface->has_document_bookmarks = pdf_document_bookmarks_has_document_bookmarks; + iface->begin_read = pdf_document_bookmarks_begin_read; + iface->get_values = pdf_document_bookmarks_get_values; + iface->get_child = pdf_document_bookmarks_get_child; + iface->next = pdf_document_bookmarks_next; + iface->free_iter = pdf_document_bookmarks_free_iter; +} + +/* Thumbnails */ +static GdkPixbuf * +pdf_document_thumbnails_get_page_pixbuf (PdfDocument *pdf_document, + gdouble scale_factor, + gint page_num, + gint width, + gint height) +{ + GdkPixmap *pixmap; + GDKSplashOutputDev *output; + GdkPixbuf *pixbuf; + + pixmap = gdk_pixmap_new (pdf_document->target, + width, height, -1); + + output = new GDKSplashOutputDev (gdk_drawable_get_screen (pdf_document->target), + NULL, NULL); + output->startDoc (pdf_document->doc->getXRef()); + pdf_document->doc->displayPage (output, + page_num + 1, + 72*scale_factor, + 72*scale_factor, + 0, gTrue, gFalse); + output->redraw (0, 0, + pixmap, + 0, 0, + width, height); + pixbuf = gdk_pixbuf_get_from_drawable (NULL, + pixmap, + NULL, + 0, 0, + 0, 0, + width, height); + gdk_drawable_unref (pixmap); + delete output; + return pixbuf; +} + +static GdkPixbuf * +pdf_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document_thumbnails, + gint page, + gint width) +{ + PdfDocument *pdf_document = PDF_DOCUMENT (document_thumbnails); + GdkPixbuf *thumbnail; + Page *the_page; + Object the_thumb; + Thumb *thumb = NULL; + gboolean have_ethumbs = FALSE; + + /* getPage seems to want page + 1 for some reason; */ + the_page = pdf_document->doc->getCatalog ()->getPage (page + 1); + the_page->getThumb(&the_thumb); + + if (!(the_thumb.isNull () || the_thumb.isNone())) { + /* Build the thumbnail object */ + thumb = new Thumb(pdf_document->doc->getXRef (), + &the_thumb); + + have_ethumbs = thumb->ok(); + } + + if (have_ethumbs) { + guchar *data; + GdkPixbuf *tmp_pixbuf; + + data = thumb->getPixbufData(); + /* FISME: scale the image if it's not an appropriate size */ + tmp_pixbuf = gdk_pixbuf_new_from_data (data, + GDK_COLORSPACE_RGB, + FALSE, + 8, + thumb->getWidth (), + thumb->getHeight (), + thumb->getWidth () * 3, + NULL, NULL); + + thumbnail = tmp_pixbuf; + } else { + gdouble page_ratio; + gdouble scale_factor; + gint dest_height; + + page_ratio = the_page->getHeight () / the_page->getWidth (); + scale_factor = (gdouble)width / the_page->getWidth (); + dest_height = (gint) (width * page_ratio); + + thumbnail = pdf_document_thumbnails_get_page_pixbuf (pdf_document, + scale_factor, + page, + width, + dest_height); + + /* FIXME: Actually get the image... */ + } + + return thumbnail; +} +static void +pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface) +{ + iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail; +} + + static void pdf_document_init (PdfDocument *pdf_document) { @@ -315,7 +1123,7 @@ pdf_document_init (PdfDocument *pdf_document) pdf_document->page_x_offset = 0; pdf_document->page_y_offset = 0; pdf_document->scale = 1.; - + pdf_document->page_valid = FALSE; }