#ifndef _HAVE_CLUTTER_BEHAVIOURS_H
#define _HAVE_CLUTTER_BEHAVIOURS_H

#include <glib-object.h>
#include "clutter-alpha.h"
#include "clutter-behaviour.h"

G_BEGIN_DECLS

#define CLUTTER_TYPE_KNOT       (clutter_knot_get_type ())

typedef struct _ClutterKnot  ClutterKnot;

struct _ClutterKnot
{
  gint x,y;
  /* FIXME: optionally include bezier control points also ? */
};

GType clutter_knot_get_type (void) G_GNUC_CONST;

#define CLUTTER_TYPE_BEHAVIOUR_PATH (clutter_behaviour_path_get_type ())

#define CLUTTER_BEHAVIOUR_PATH(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
  CLUTTER_TYPE_BEHAVIOUR_PATH, ClutterBehaviourPath))

#define CLUTTER_BEHAVIOUR_PATH_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST ((klass), \
  CLUTTER_TYPE_BEHAVIOUR_PATH, ClutterBehaviourPathClass))

#define CLUTTER_IS_BEHAVIOUR_PATH(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
  CLUTTER_TYPE_BEHAVIOUR_PATH))

#define CLUTTER_IS_BEHAVIOUR_PATH_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_TYPE ((klass), \
  CLUTTER_TYPE_BEHAVIOUR_PATH))

#define CLUTTER_BEHAVIOUR_PATH_GET_CLASS(obj) \
  (G_TYPE_INSTANCE_GET_CLASS ((obj), \
  CLUTTER_TYPE_BEHAVIOUR_PATH, ClutterBehaviourPathClass))

typedef struct _ClutterBehaviourPath        ClutterBehaviourPath;
typedef struct _ClutterBehaviourPathPrivate ClutterBehaviourPathPrivate;
typedef struct _ClutterBehaviourPathClass   ClutterBehaviourPathClass;
 
struct _ClutterBehaviourPath
{
  ClutterBehaviour             parent;
  ClutterBehaviourPathPrivate *priv;
};

struct _ClutterBehaviourPathClass
{
  ClutterBehaviourClass   parent_class;
};

GType clutter_behaviour_path_get_type (void);

ClutterBehaviour*
clutter_behaviour_path_new (ClutterAlpha          *alpha,
			    const ClutterKnot     *knots,
                            guint                  n_knots);

GSList*
clutter_path_behaviour_get_knots (ClutterBehaviourPath *behave);

void
clutter_path_behaviour_append_knot (ClutterBehaviourPath  *pathb,
				    const ClutterKnot     *knot);

void
clutter_path_behaviour_append_knots_valist (ClutterBehaviourPath  *pathb,
					    const ClutterKnot     *first_knot,
					    va_list                args);

void
clutter_path_behavior_append_knots (ClutterBehaviourPath  *pathb,
				    const ClutterKnot     *first_knot,
				    ...);

/* opacity */

#define CLUTTER_TYPE_BEHAVIOUR_OPACITY clutter_behaviour_opacity_get_type()

#define CLUTTER_BEHAVIOUR_OPACITY(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
  CLUTTER_TYPE_BEHAVIOUR_OPACITY, ClutterBehaviourOpacity))

#define CLUTTER_BEHAVIOUR_OPACITY_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST ((klass), \
  CLUTTER_TYPE_BEHAVIOUR_OPACITY, ClutterBehaviourOpacityClass))

#define CLUTTER_IS_BEHAVIOUR_OPACITY(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
  CLUTTER_TYPE_BEHAVIOUR_OPACITY))

#define CLUTTER_IS_BEHAVIOUR_OPACITY_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_TYPE ((klass), \
  CLUTTER_TYPE_BEHAVIOUR_OPACITY))

#define CLUTTER_BEHAVIOUR_OPACITY_GET_CLASS(obj) \
  (G_TYPE_INSTANCE_GET_CLASS ((obj), \
  CLUTTER_TYPE_BEHAVIOUR_OPACITY, ClutterBehaviourOpacityClass))

typedef struct _ClutterBehaviourOpacity       ClutterBehaviourOpacity;
typedef struct ClutterBehaviourOpacityPrivate ClutterBehaviourOpacityPrivate;
typedef struct _ClutterBehaviourOpacityClass  ClutterBehaviourOpacityClass;
 
struct _ClutterBehaviourOpacity
{
  ClutterBehaviour             parent;
  ClutterBehaviourOpacityPrivate *priv;
};

struct _ClutterBehaviourOpacityClass
{
  ClutterBehaviourClass   parent_class;
};

GType clutter_behaviour_opacity_get_type (void);

ClutterBehaviour*
clutter_behaviour_opacity_new (ClutterAlpha *alpha,
			       guint8        opacity_start,
			       guint8        opacity_end);

G_END_DECLS

#endif