From f7c3085a0e3c5c813cf9ae40b55fd7390e9373e2 Mon Sep 17 00:00:00 2001
From: Carlos Garcia Campos <carlosgc@gnome.org>
Date: Wed, 27 Dec 2006 17:33:22 +0000
Subject: 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.
---
(limited to 'backend/ev-document-transition.c')

diff --git a/backend/ev-document-transition.c b/backend/ev-document-transition.c
new file mode 100644
index 0000000..274da7c
--- /dev/null
+++ b/backend/ev-document-transition.c
@@ -0,0 +1,55 @@
+/* ev-document-transition.c
+ *  this file is part of evince, a gnome document viewer
+ * 
+ * Copyright (C) 2006 Carlos Garcia Campos <carlosgc@gnome.org>
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "ev-document-transition.h"
+
+GType
+ev_document_transition_get_type (void)
+{
+	static GType type = 0;
+
+	if (G_UNLIKELY (type == 0)) {
+		const GTypeInfo our_info = {
+			sizeof (EvDocumentTransitionIface),
+			NULL,
+			NULL,
+		};
+
+		type = g_type_register_static (G_TYPE_INTERFACE,
+					       "EvDocumentTransition",
+					       &our_info, (GTypeFlags)0);
+	}
+
+	return type;
+}
+
+gdouble
+ev_document_transition_get_page_duration (EvDocumentTransition *document_trans,
+					  gint                  page)
+{
+	EvDocumentTransitionIface *iface = EV_DOCUMENT_TRANSITION_GET_IFACE (document_trans);
+
+	if (iface->get_page_duration)
+		return iface->get_page_duration (document_trans, page);
+
+	return -1;
+}
+
+
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