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/* gtd-animatable.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-types.h"
G_BEGIN_DECLS
#define GTD_TYPE_ANIMATABLE (gtd_animatable_get_type ())
G_DECLARE_INTERFACE (GtdAnimatable, gtd_animatable, GTD, ANIMATABLE, GObject)
/**
* GtdAnimatableInterface:
* @find_property: virtual function for retrieving the #GParamSpec of
* an animatable property
* @get_initial_state: virtual function for retrieving the initial
* state of an animatable property
* @set_final_state: virtual function for setting the state of an
* animatable property
* @interpolate_value: virtual function for interpolating the progress
* of a property
* @get_widget: virtual function for getting associated #GtdWidget
*
* Since: 1.0
*/
struct _GtdAnimatableInterface
{
/*< private >*/
GTypeInterface parent_iface;
/*< public >*/
GParamSpec *(* find_property) (GtdAnimatable *animatable,
const gchar *property_name);
void (* get_initial_state) (GtdAnimatable *animatable,
const gchar *property_name,
GValue *value);
void (* set_final_state) (GtdAnimatable *animatable,
const gchar *property_name,
const GValue *value);
gboolean (* interpolate_value) (GtdAnimatable *animatable,
const gchar *property_name,
GtdInterval *interval,
gdouble progress,
GValue *value);
GtdWidget * (* get_widget) (GtdAnimatable *animatable);
};
GParamSpec *gtd_animatable_find_property (GtdAnimatable *animatable,
const gchar *property_name);
void gtd_animatable_get_initial_state (GtdAnimatable *animatable,
const gchar *property_name,
GValue *value);
void gtd_animatable_set_final_state (GtdAnimatable *animatable,
const gchar *property_name,
const GValue *value);
gboolean gtd_animatable_interpolate_value (GtdAnimatable *animatable,
const gchar *property_name,
GtdInterval *interval,
gdouble progress,
GValue *value);
GtdWidget * gtd_animatable_get_widget (GtdAnimatable *animatable);
G_END_DECLS
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