Add page transition support in presentation mode. At the moment only page

2006-12-27  Carlos Garcia Campos  <carlosgc@gnome.org>
	* configure.ac:
	* backend/Makefile.am:
	* backend/ev-document-transition.[ch]:
	* pdf/ev-poppler.cc: (pdf_document_get_page_duration),
	(pdf_document_page_transition_iface_init):
	* shell/ev-view-private.h:
	* shell/ev-view.c: (ev_view_destroy), (page_changed_cb),
	(ev_view_set_presentation), (transition_next_page),
	(ev_view_presentation_transition_stop),
	(ev_view_presentation_transition_start), (ev_view_next_page):
	Add page transition support in presentation mode. At the moment only
	page duration is supported, but not transition effects. Fixes bug
	#309815.

1 files changed, 34 insertions, 0 deletions

diff --git a/pdf/ev-poppler.cc b/pdf/ev-poppler.cc
index 2e0e46a..479a741 100644
--- a/pdf/ev-poppler.cc
+++ b/pdf/ev-poppler.cc
@@ -38,6 +38,7 @@
 #include "ev-document-fonts.h"
 #include "ev-document-security.h"
 #include "ev-document-thumbnails.h"
+#include "ev-document-transition.h"
 #include "ev-selection.h"
 #include "ev-attachment.h"
 
@@ -86,6 +87,7 @@ static void pdf_document_document_fonts_iface_init      (EvDocumentFontsIface
 static void pdf_document_find_iface_init                (EvDocumentFindIface       *iface);
 static void pdf_document_file_exporter_iface_init       (EvFileExporterIface       *iface);
 static void pdf_selection_iface_init                    (EvSelectionIface          *iface);
+static void pdf_document_page_transition_iface_init     (EvDocumentTransitionIface *iface);
 static void pdf_document_thumbnails_get_dimensions      (EvDocumentThumbnails      *document_thumbnails,
 							 gint                       page,
 							 gint                       size,
@@ -119,6 +121,8 @@ G_DEFINE_TYPE_WITH_CODE (PdfDocument, pdf_document, G_TYPE_OBJECT,
 							pdf_document_file_exporter_iface_init);
 				 G_IMPLEMENT_INTERFACE (EV_TYPE_SELECTION,
 							pdf_selection_iface_init);
+				 G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_TRANSITION,
+							pdf_document_page_transition_iface_init);
 			 });
 
 
@@ -1637,6 +1641,36 @@ pdf_selection_iface_init (EvSelectionIface *iface)
         iface->get_selection_map = pdf_selection_get_selection_map;
 }
 
+/* Page Transitions */
+static gdouble
+pdf_document_get_page_duration (EvDocumentTransition *trans,
+				gint                  page)
+{
+#ifdef HAVE_POPPLER_PAGE_GET_DURATION	
+	PdfDocument *pdf_document;
+	PopplerPage *poppler_page;
+	gdouble      duration = -1;
+
+	pdf_document = PDF_DOCUMENT (trans);
+	poppler_page = poppler_document_get_page (pdf_document->document, page);
+	if (!poppler_page)
+		return -1;
+
+	duration = poppler_page_get_duration (poppler_page);
+	g_object_unref (poppler_page);
+
+	return duration;
+#else
+	return -1;
+#endif /* HAVE_POPPLER_PAGE_GET_DURATION */
+}
+
+static void
+pdf_document_page_transition_iface_init (EvDocumentTransitionIface *iface)
+{
+	iface->get_page_duration = pdf_document_get_page_duration;
+}
+
 PdfDocument *
 pdf_document_new (void)
 {