+/* 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;
+}
+