]> www.fi.muni.cz Git - evince.git/blobdiff - pdf/xpdf/pdf-document.cc
Add a bookmark object to the backend and use it instead of get_values
[evince.git] / pdf / xpdf / pdf-document.cc
index 50055f0ce1276c6841f36661e349281d169e8865..feb009d017a7ee263dd46b23bc48f12088deabea 100644 (file)
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#include <glib/gi18n.h>
+
 #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-misc.h"
+#include "ev-document-thumbnails.h"
 
 #include "GlobalParams.h"
 #include "GDKSplashOutputDev.h"
+#include "SplashBitmap.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;
@@ -67,13 +84,16 @@ struct _PdfDocument
        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);
@@ -83,6 +103,10 @@ 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_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,
@@ -97,7 +121,7 @@ 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
@@ -106,6 +130,8 @@ document_validate_page (PdfDocument *pdf_document)
                 if (pdf_document->search)
                         pdf_document_search_page_changed (pdf_document->search);
        }
+
+       return pdf_document->page_valid;
 }
 
 static gboolean
@@ -118,12 +144,20 @@ pdf_document_load (EvDocument  *document,
        int err;
        char *filename;
        GString *filename_g;
-       
+       GString *enc;
+
        if (!globalParams) {
                globalParams = new GlobalParams("/etc/xpdfrc");
                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);
        if (!filename)
                return FALSE;
@@ -144,7 +178,7 @@ pdf_document_load (EvDocument  *document,
                             "Failed to load document (error %d) '%s'\n",
                             err,
                             uri);
-               
+
                return FALSE;
        }
 
@@ -158,10 +192,31 @@ 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;
 }
 
+static gboolean
+pdf_document_save (EvDocument  *document,
+                  const char  *uri,
+                  GError     **error)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       char *filename;
+       gboolean retval = FALSE;
+
+       filename = g_filename_from_uri (uri, NULL, error);
+       if (filename != NULL) {
+               GString *fname = new GString (filename);
+
+               retval = pdf_document->doc->saveAs (fname);
+       }
+
+       return retval;
+}
+
 static int
 pdf_document_get_n_pages (EvDocument  *document)
 {
@@ -186,6 +241,7 @@ pdf_document_set_page (EvDocument  *document,
                pdf_document->page_valid = FALSE;
        }
 
+       ev_document_changed (document);
 }
 
 static int
@@ -207,11 +263,11 @@ 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)
@@ -240,7 +296,7 @@ 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;
@@ -253,7 +309,7 @@ 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;
 }
@@ -291,7 +347,7 @@ 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();
@@ -301,7 +357,7 @@ 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,
@@ -340,9 +396,9 @@ pdf_document_search_emit_found (PdfDocumentSearch *search)
                 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
@@ -351,18 +407,18 @@ pdf_document_search_emit_found (PdfDocumentSearch *search)
                         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);
 }
 
@@ -381,13 +437,13 @@ pdf_document_search_page_changed (PdfDocumentSearch   *search)
                 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
@@ -400,21 +456,20 @@ pdf_document_search_page_changed (PdfDocumentSearch   *search)
                 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);
                 }
         }
@@ -424,7 +479,7 @@ pdf_document_search_page_changed (PdfDocumentSearch   *search)
          */
         search->other_page_flags[current_page] =
                 search->current_page_results->len > 0;
-        
+
         pdf_document_search_emit_found (search);
 }
 
@@ -435,7 +490,6 @@ pdf_document_search_idle_callback (void *data)
         PdfDocument *pdf_document = search->document;
         int n_pages;
         double xMin, yMin, xMax, yMax;
-        gboolean found;
 
         /* Note that PDF page count is 1 through n_pages INCLUSIVE
          * like a real book. We are looking to add one result for each
@@ -457,7 +511,7 @@ pdf_document_search_idle_callback (void *data)
                         goto end_search;
                 }
         }
-                                                  
+
         pdf_document->doc->displayPage (search->output_dev,
                                         search->search_page,
                                         72, 72, 0, gTrue, gFalse);
@@ -470,7 +524,7 @@ pdf_document_search_idle_callback (void *data)
                 /* This page has results */
                 search->other_page_flags[search->search_page] = TRUE;
         }
-        
+
         search->search_page += 1;
         if (search->search_page > n_pages) {
                 /* wrap around */
@@ -479,7 +533,7 @@ pdf_document_search_idle_callback (void *data)
 
         /* We do this even if nothing was found, to update the percent complete */
         pdf_document_search_emit_found (search);
-        
+
         return TRUE;
 
  end_search:
@@ -503,7 +557,7 @@ pdf_document_find_begin (EvDocumentFind   *document,
          * 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);
@@ -522,22 +576,22 @@ pdf_document_find_begin (EvDocumentFind   *document,
                 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)); 
+        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 */
@@ -556,7 +610,7 @@ pdf_document_find_begin (EvDocumentFind   *document,
         search->current_page = -1;
 
         pdf_document->search = search;
-        
+
         /* Update for the current page right away */
         pdf_document_search_page_changed (search);
 }
@@ -580,10 +634,10 @@ pdf_document_search_free (PdfDocumentSearch   *search)
 
        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);
 }
@@ -599,7 +653,7 @@ pdf_document_ps_export_begin (EvPSExporter *exporter, const char *filename)
        document->ps_out = new PSOutputDev ((char *)filename, document->doc->getXRef(),
                                            document->doc->getCatalog(), 1,
                                            ev_document_get_n_pages (EV_DOCUMENT (document)),
-                                           psModePS);  
+                                           psModePS);
 }
 
 static void
@@ -620,14 +674,211 @@ pdf_document_ps_export_end (EvPSExporter *exporter)
        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 EvBookmark *
+pdf_document_bookmarks_get_bookmark (EvDocumentBookmarks      *document_bookmarks,
+                                    EvDocumentBookmarksIter  *bookmarks_iter)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document_bookmarks);
+       EvBookmark *bookmark;
+       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 = 0;
+       char *title;
+
+       g_return_val_if_fail (PDF_IS_DOCUMENT (document_bookmarks), FALSE);
+       g_return_val_if_fail (iter != 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 <LinkGoTo *> (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 <LinkURI *> (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));
+       }
+
+       bookmark = ev_bookmark_new (title, EV_BOOKMARK_TYPE_LINK, page_num);
+
+       g_free (title);
+
+       return bookmark;
+}
+
+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);
 
@@ -640,18 +891,128 @@ pdf_document_finalize (GObject *object)
 
 }
 
+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 char *
+pdf_document_get_text (EvDocument *document, GdkRectangle *rect)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document);
+       GString *sel_text = new GString;
+       const char *text;
+       int x1, y1, x2, y2;
+
+       x1 = rect->x;
+       y1 = rect->y;
+       x2 = x1 + rect->width;
+       y2 = y1 + rect->height;
+
+       sel_text = pdf_document->out->getText (x1, y1, x2, y2);
+       text = sel_text->getCString ();
+
+       return text ? g_strdup (text) : NULL;
+}
+
+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
 pdf_document_document_iface_init (EvDocumentIface *iface)
 {
        iface->load = pdf_document_load;
+       iface->save = pdf_document_save;
+       iface->get_text = pdf_document_get_text;
        iface->get_n_pages = pdf_document_get_n_pages;
        iface->set_page = pdf_document_set_page;
        iface->get_page = pdf_document_get_page;
@@ -678,6 +1039,203 @@ pdf_document_find_iface_init (EvDocumentFindIface *iface)
         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_bookmark = pdf_document_bookmarks_get_bookmark;
+       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 *
+bitmap_to_pixbuf (SplashBitmap *bitmap,
+                 GdkPixbuf    *target,
+                 gint          x_offset,
+                 gint          y_offset)
+{
+       gint width;
+       gint height;
+       SplashColorPtr dataPtr;
+       int x, y;
+
+       gboolean target_has_alpha;
+       gint target_rowstride;
+       guchar *target_data;
+
+       width = bitmap->getWidth ();
+       height = bitmap->getHeight ();
+
+       if (width + x_offset > gdk_pixbuf_get_width (target))
+               width = gdk_pixbuf_get_width (target) - x_offset;
+       if (height + y_offset > gdk_pixbuf_get_height (target))
+               height = gdk_pixbuf_get_height (target) - x_offset;
+
+       target_has_alpha = gdk_pixbuf_get_has_alpha (target);
+       target_rowstride = gdk_pixbuf_get_rowstride (target);
+       target_data = gdk_pixbuf_get_pixels (target);
+
+       dataPtr = bitmap->getDataPtr ();
+
+       for (y = 0; y < height; y++) {
+               SplashRGB8 *p;
+               SplashRGB8 rgb;
+               guchar *q;
+
+               p = dataPtr.rgb8 + y * width;
+               q = target_data + ((y + y_offset) * target_rowstride + 
+                                  x_offset * (target_has_alpha?4:3));
+               for (x = 0; x < width; x++) {
+                       rgb = *p++;
+
+                       *q++ = splashRGB8R (rgb);
+                       *q++ = splashRGB8G (rgb);
+                       *q++ = splashRGB8B (rgb);
+
+                       if (target_has_alpha)
+                               q++;
+               }
+       }
+
+       return target;
+}
+
+
+static GdkPixbuf *
+pdf_document_thumbnails_get_page_pixbuf (PdfDocument *pdf_document,
+                                        gdouble      scale_factor,
+                                        gint         page_num,
+                                        gint         width,
+                                        gint         height)
+{
+       SplashOutputDev *output;
+       GdkPixbuf *pixbuf;
+       SplashColor color;
+
+       color.rgb8 = splashMakeRGB8 (255, 255, 255);
+
+       output = new SplashOutputDev (splashModeRGB8, gFalse, color);
+       output->startDoc (pdf_document->doc->getXRef());
+       pdf_document->doc->displayPage (output,
+                                       page_num + 1,
+                                       72*scale_factor,
+                                       72*scale_factor,
+                                       0, gTrue, gFalse);
+
+       pixbuf = ev_document_misc_get_thumbnail_frame (output->getBitmap()->getWidth(),
+                                                      output->getBitmap()->getHeight(),
+                                                      NULL);
+       bitmap_to_pixbuf (output->getBitmap(), pixbuf, 1, 1);
+       delete output;
+
+       return pixbuf;
+}
+
+static void
+pdf_document_thumbnails_get_dimensions (EvDocumentThumbnails *document_thumbnails,
+                                       gint                  page,
+                                       gint                  suggested_width,
+                                       gint                 *width,
+                                       gint                 *height)
+{
+       PdfDocument *pdf_document = PDF_DOCUMENT (document_thumbnails);
+       Page *the_page;
+       Object the_thumb;
+       Thumb *thumb = NULL;
+       gdouble page_ratio;
+
+       /* 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);
+
+               *width = thumb->getWidth ();
+               *height = thumb->getHeight ();
+       } else {
+               page_ratio = the_page->getHeight () / the_page->getWidth ();
+               *width = suggested_width;
+               *height = (gint) (suggested_width * page_ratio);
+       }
+}
+
+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;
+       gdouble page_ratio;
+       gint dest_height;
+
+       /* getPage seems to want page + 1 for some reason; */
+       the_page = pdf_document->doc->getCatalog ()->getPage (page + 1);
+       the_page->getThumb(&the_thumb);
+
+       page_ratio = the_page->getHeight () / the_page->getWidth ();
+       dest_height = (gint) (width * page_ratio);
+
+
+       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();
+               tmp_pixbuf = gdk_pixbuf_new_from_data (data,
+                                                      GDK_COLORSPACE_RGB,
+                                                      FALSE,
+                                                      8,
+                                                      thumb->getWidth (),
+                                                      thumb->getHeight (),
+                                                      thumb->getWidth () * 3,
+                                                      NULL, NULL);
+               /* FIXME: do we want to check that the thumb's size isn't ridiculous?? */
+               thumbnail = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf);
+               g_object_unref (tmp_pixbuf);
+       } else {
+               gdouble scale_factor;
+
+               scale_factor = (gdouble)width / the_page->getWidth ();
+
+               thumbnail = pdf_document_thumbnails_get_page_pixbuf (pdf_document,
+                                                                    scale_factor,
+                                                                    page,
+                                                                    width,
+                                                                    dest_height);
+       }
+
+       return thumbnail;
+}
+static void
+pdf_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface)
+{
+       iface->get_thumbnail = pdf_document_thumbnails_get_thumbnail;
+       iface->get_dimensions = pdf_document_thumbnails_get_dimensions;
+}
+
+
 static void
 pdf_document_init (PdfDocument *pdf_document)
 {
@@ -685,7 +1243,7 @@ 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;
 }