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/* gtd-interval.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 <glib-object.h>
G_BEGIN_DECLS
#define GTD_TYPE_INTERVAL (gtd_interval_get_type())
G_DECLARE_DERIVABLE_TYPE (GtdInterval, gtd_interval, GTD, INTERVAL, GInitiallyUnowned)
/**
* GtdIntervalClass:
* @validate: virtual function for validating an interval
* using a #GParamSpec
* @compute_value: virtual function for computing the value
* inside an interval using an adimensional factor between 0 and 1
*
* The #GtdIntervalClass contains only private data.
*
* Since: 1.0
*/
struct _GtdIntervalClass
{
/*< private >*/
GInitiallyUnownedClass parent_class;
/*< public >*/
gboolean (* validate) (GtdInterval *self,
GParamSpec *pspec);
gboolean (* compute_value) (GtdInterval *self,
gdouble factor,
GValue *value);
/*< private >*/
/* padding for future expansion */
void (*_gtd_reserved1) (void);
void (*_gtd_reserved2) (void);
void (*_gtd_reserved3) (void);
void (*_gtd_reserved4) (void);
void (*_gtd_reserved5) (void);
void (*_gtd_reserved6) (void);
};
GtdInterval* gtd_interval_new (GType gtype,
...);
GtdInterval* gtd_interval_new_with_values (GType gtype,
const GValue *initial,
const GValue *final);
GtdInterval* gtd_interval_clone (GtdInterval *self);
GType gtd_interval_get_value_type (GtdInterval *self);
void gtd_interval_set_initial (GtdInterval *self,
...);
void gtd_interval_set_initial_value (GtdInterval *self,
const GValue *value);
void gtd_interval_get_initial_value (GtdInterval *self,
GValue *value);
GValue* gtd_interval_peek_initial_value (GtdInterval *self);
void gtd_interval_set_final (GtdInterval *self,
...);
void gtd_interval_set_final_value (GtdInterval *self,
const GValue *value);
void gtd_interval_get_final_value (GtdInterval *self,
GValue *value);
GValue* gtd_interval_peek_final_value (GtdInterval *self);
void gtd_interval_set_interval (GtdInterval *self,
...);
void gtd_interval_get_interval (GtdInterval *self,
...);
gboolean gtd_interval_validate (GtdInterval *self,
GParamSpec *pspec);
gboolean gtd_interval_compute_value (GtdInterval *self,
gdouble factor,
GValue *value);
const GValue* gtd_interval_compute (GtdInterval *self,
gdouble factor);
gboolean gtd_interval_is_valid (GtdInterval *self);
G_END_DECLS
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