1 files changed, 57 insertions, 0 deletions
diff --git a/libdocument/ev-document-transition.c b/libdocument/ev-document-transition.c
new file mode 100644
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--- /dev/null
+++ b/libdocument/ev-document-transition.c
@@ -0,0 +1,57 @@
+/* ev-document-transition.c
+ *  this file is part of evince, a mate document viewer
+ * 
+ * Copyright (C) 2006 Carlos Garcia Campos <[email protected]>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <config.h>
+#include "ev-document-transition.h"
+
+G_DEFINE_INTERFACE (EvDocumentTransition, ev_document_transition, 0)
+
+static void
+ev_document_transition_default_init (EvDocumentTransitionInterface *klass)
+{
+}
+
+gdouble
+ev_document_transition_get_page_duration (EvDocumentTransition *document_trans,
+					  gint                  page)
+{
+	EvDocumentTransitionInterface *iface = EV_DOCUMENT_TRANSITION_GET_IFACE (document_trans);
+
+	if (iface->get_page_duration)
+		return iface->get_page_duration (document_trans, page);
+
+	return -1;
+}
+
+EvTransitionEffect *
+ev_document_transition_get_effect (EvDocumentTransition *document_trans,
+				   gint                  page)
+{
+	EvDocumentTransitionInterface *iface = EV_DOCUMENT_TRANSITION_GET_IFACE (document_trans);
+	EvTransitionEffect *effect = NULL;
+
+	if (iface->get_effect)
+		effect = iface->get_effect (document_trans, page);
+
+	if (!effect)
+		return ev_transition_effect_new (EV_TRANSITION_EFFECT_REPLACE, NULL);
+
+	return effect;
+}