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65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/* ev-document-transition.c
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* this file is part of evince, a gnome document viewer
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*
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* Copyright (C) 2006 Carlos Garcia Campos <carlosgc@gnome.org>
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*
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* Evince is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Evince is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include "ev-document-transition.h"
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G_DEFINE_INTERFACE (EvDocumentTransition, ev_document_transition, 0)
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static void
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ev_document_transition_default_init (EvDocumentTransitionInterface *klass)
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{
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}
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gdouble
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ev_document_transition_get_page_duration (EvDocumentTransition *document_trans,
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gint page)
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{
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EvDocumentTransitionInterface *iface = EV_DOCUMENT_TRANSITION_GET_IFACE (document_trans);
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if (iface->get_page_duration)
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return iface->get_page_duration (document_trans, page);
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return -1;
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}
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/**
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* ev_document_transition_get_effect:
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* @document_trans: an #EvDocumentTransition
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* @page: a page index
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*
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* Returns: (transfer full): an #EvTransitionEffect
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*/
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EvTransitionEffect *
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ev_document_transition_get_effect (EvDocumentTransition *document_trans,
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gint page)
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{
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EvDocumentTransitionInterface *iface = EV_DOCUMENT_TRANSITION_GET_IFACE (document_trans);
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EvTransitionEffect *effect = NULL;
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if (iface->get_effect)
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effect = iface->get_effect (document_trans, page);
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if (!effect)
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return ev_transition_effect_new (EV_TRANSITION_EFFECT_REPLACE, NULL);
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return effect;
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}
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