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// SPDX-License-Identifier: GPL-2.0-or-later
/* pps-document-transition.c
* this file is part of papers, a gnome document viewer
*
* Copyright (C) 2006 Carlos Garcia Campos <carlosgc@gnome.org>
*/
#include "pps-document-transition.h"
#include <config.h>
G_DEFINE_INTERFACE (PpsDocumentTransition, pps_document_transition, 0)
static void
pps_document_transition_default_init (PpsDocumentTransitionInterface *klass)
{
}
gdouble
pps_document_transition_get_page_duration (PpsDocumentTransition *document_trans,
gint page)
{
PpsDocumentTransitionInterface *iface = PPS_DOCUMENT_TRANSITION_GET_IFACE (document_trans);
if (iface->get_page_duration)
return iface->get_page_duration (document_trans, page);
return -1;
}
/**
* pps_document_transition_get_effect:
* @document_trans: an #PpsDocumentTransition
* @page: a page index
*
* Returns: (transfer full): an #PpsTransitionEffect
*/
PpsTransitionEffect *
pps_document_transition_get_effect (PpsDocumentTransition *document_trans,
gint page)
{
PpsDocumentTransitionInterface *iface = PPS_DOCUMENT_TRANSITION_GET_IFACE (document_trans);
PpsTransitionEffect *effect = NULL;
if (iface->get_effect)
effect = iface->get_effect (document_trans, page);
if (!effect)
return pps_transition_effect_new (PPS_TRANSITION_EFFECT_REPLACE, NULL);
return effect;
}
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