/*
 * Clutter.
 *
 * An OpenGL based 'interactive canvas' library.
 *
 * Authored By Øyvind Kolås <pippin@linux.intel.com>
 *
 * Copyright (C) 2009 Intel Corporation
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __CLUTTER_STATE_H__
#define __CLUTTER_STATE_H__

#include <clutter/clutter.h>

G_BEGIN_DECLS

#define CLUTTER_TYPE_STATE (clutter_state_get_type ())

#define CLUTTER_STATE(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
  CLUTTER_TYPE_STATE, ClutterState))

#define CLUTTER_STATE_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST ((klass), \
  CLUTTER_TYPE_STATE, ClutterStateClass))

#define CLUTTER_IS_STATE(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
  CLUTTER_TYPE_STATE))

#define CLUTTER_IS_STATE_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_TYPE ((klass), \
  CLUTTER_TYPE_STATE))

#define CLUTTER_STATE_GET_CLASS(obj) \
  (G_TYPE_INSTANCE_GET_CLASS ((obj), \
  CLUTTER_TYPE_STATE, ClutterStateClass))

typedef struct _ClutterState        ClutterState;
typedef struct _ClutterStatePrivate ClutterStatePrivate;
typedef struct _ClutterStateClass   ClutterStateClass;
typedef struct _ClutterStateKey     ClutterStateKey;

/**
 * ClutterState:
 *
 * The #ClutterState structure contains only private data and
 * should be accessed using the provided API
 *
 * Since: 1.4
 */
struct _ClutterState
{
  /*< private >*/
  GObject        parent;
  ClutterStatePrivate *priv;
};

/**
 * ClutterStateClass:
 *
 * The #ClutterStateClass structure contains only private data
 *
 * Since: 1.4
 */
struct _ClutterStateClass
{
  /*< private >*/
  GObjectClass parent_class;

  /*< public >*/
  void (*completed) (ClutterState *state);

  /* padding for future expansion */
  gpointer _padding_dummy[16];
};

GType clutter_state_get_type (void) G_GNUC_CONST;
ClutterState    *clutter_state_new                    (void);


/* XXX: clutter_state_run? 
 *      the current (target?) transition should be a property of ClutterState
 */
ClutterTimeline * clutter_state_change               (ClutterState    *state,
                                                      const gchar     *target_transition_name);
ClutterTimeline * clutter_state_change_noanim        (ClutterState    *state,
                                                      const gchar     *target_transition_name);
const gchar     * clutter_state_get_target_state     (ClutterState    *state);
ClutterState *    clutter_state_set_key              (ClutterState    *state,
                                                      const gchar     *source_transition_name,
                                                      const gchar     *target_transition_name,
                                                      GObject         *object,
                                                      const gchar     *property_name,
                                                      guint            mode,
                                                      const GValue    *value,
                                                      gdouble          pre_delay,
                                                      gdouble          post_delay);
void              clutter_state_set_duration         (ClutterState    *state,
                                                      const gchar     *source_transition_name,
                                                      const gchar     *target_transition_name,
                                                      guint            duration);
guint             clutter_state_get_duration         (ClutterState    *state,
                                                      const gchar     *source_transition_name,
                                                      const gchar     *target_transition_name);
void              clutter_state_set                  (ClutterState    *state,
                                                      const gchar     *source_transition_name,
                                                      const gchar     *target_transition_name,
                                                      gpointer         first_object,
                                                      const gchar     *first_property_name,
                                                      gulong           first_mode,
                                                       ...);
GList           * clutter_state_get_states           (ClutterState    *state);
GList           * clutter_state_get_keys             (ClutterState    *state,
                                                      const gchar     *source_transition_name,
                                                      const gchar     *target_transition_name,
                                                      GObject         *object,
                                                      const gchar     *property_name);
void              clutter_state_remove_key           (ClutterState    *state,
                                                      const gchar     *source_transition_name,
                                                      const gchar     *target_transition_name,
                                                      GObject         *object,
                                                      const gchar     *property_name);
ClutterTimeline * clutter_state_get_timeline         (ClutterState    *state);
void              clutter_state_set_animator         (ClutterState    *state,
                                                      const gchar     *source_transition_name,
                                                      const gchar     *target_transition_name,
                                                      ClutterAnimator *animator);
ClutterAnimator * clutter_state_get_animator         (ClutterState    *state,
                                                      const gchar     *source_transition_name,
                                                      const gchar     *target_transition_name);

GType             clutter_state_key_get_type              (void) G_GNUC_CONST;
gdouble           clutter_state_key_get_pre_delay         (ClutterStateKey *state_key);
gdouble           clutter_state_key_get_post_delay        (ClutterStateKey *state_key);
gulong            clutter_state_key_get_mode              (ClutterStateKey *state_key);
void              clutter_state_key_get_value             (ClutterStateKey *state_key,
                                                           GValue          *value);
GObject         * clutter_state_key_get_object            (ClutterStateKey *state_key);
const gchar     * clutter_state_key_get_property_name     (ClutterStateKey *state_key);
const gchar     * clutter_state_key_get_source_state_name (ClutterStateKey *state_key);
const gchar     * clutter_state_key_get_target_state_name (ClutterStateKey *state_key);

G_END_DECLS

#endif /* __CLUTTER_STATE_H__ */