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/* gtd-transition.h
*
* Copyright 2020 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#pragma once
#include "gtd-timeline.h"
G_BEGIN_DECLS
#define GTD_TYPE_TRANSITION (gtd_transition_get_type())
G_DECLARE_DERIVABLE_TYPE (GtdTransition, gtd_transition, GTD, TRANSITION, GtdTimeline)
/**
* GtdTransitionClass:
* @attached: virtual function; called when a transition is attached to
* a #GtdAnimatable instance
* @detached: virtual function; called when a transition is detached from
* a #GtdAnimatable instance
* @compute_value: virtual function; called each frame to compute and apply
* the interpolation of the interval
*
* The #GtdTransitionClass structure contains
* private data.
*
* Since: 1.10
*/
struct _GtdTransitionClass
{
/*< private >*/
GtdTimelineClass parent_class;
/*< public >*/
void (* attached) (GtdTransition *transition,
GtdAnimatable *animatable);
void (* detached) (GtdTransition *transition,
GtdAnimatable *animatable);
void (* compute_value) (GtdTransition *transition,
GtdAnimatable *animatable,
GtdInterval *interval,
gdouble progress);
/*< private >*/
gpointer _padding[8];
};
void gtd_transition_set_interval (GtdTransition *transition,
GtdInterval *interval);
GtdInterval * gtd_transition_get_interval (GtdTransition *transition);
void gtd_transition_set_from_value (GtdTransition *transition,
const GValue *value);
void gtd_transition_set_to_value (GtdTransition *transition,
const GValue *value);
void gtd_transition_set_from (GtdTransition *transition,
GType value_type,
...);
void gtd_transition_set_to (GtdTransition *transition,
GType value_type,
...);
void gtd_transition_set_animatable (GtdTransition *transition,
GtdAnimatable *animatable);
GtdAnimatable * gtd_transition_get_animatable (GtdTransition *transition);
void gtd_transition_set_remove_on_complete (GtdTransition *transition,
gboolean remove_complete);
gboolean gtd_transition_get_remove_on_complete (GtdTransition *transition);
G_END_DECLS
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