#ifndef CMETAINTERVAL_H

#define CMETAINTERVAL_H

#include "directbase.h"

#include "cInterval.h"

#include "pointerTo.h"

#include "pdeque.h"

#include "pvector.h"

#include "plist.h"

#include "pset.h"

#include <math.h>

class EXPCL_DIRECT_INTERVAL CMetaInterval : public CInterval {

PUBLISHED:

explicit CMetaInterval(const std::string &name);

virtual ~CMetaInterval();

enum RelativeStart {

};

INLINE void set_precision(double precision);

INLINE double get_precision() const;

void clear_intervals();

int push_level(const std::string &name,

double rel_time, RelativeStart rel_to);

int add_c_interval(CInterval *c_interval,

double rel_time = 0.0f,

RelativeStart rel_to = RS_previous_end);

int add_ext_index(int ext_index, const std::string &name,

double duration, bool open_ended,

double rel_time, RelativeStart rel_to);

int pop_level(double duration = -1.0);

bool set_interval_start_time(const std::string &name, double rel_time,

RelativeStart rel_to = RS_level_begin);

double get_interval_start_time(const std::string &name) const;

double get_interval_end_time(const std::string &name) const;

enum DefType {

};

INLINE int get_num_defs() const;

INLINE DefType get_def_type(int n) const;

INLINE CInterval *get_c_interval(int n) const;

INLINE int get_ext_index(int n) const;

virtual void priv_initialize(double t);

virtual void priv_instant();

virtual void priv_step(double t);

virtual void priv_finalize();

virtual void priv_reverse_initialize(double t);

virtual void priv_reverse_instant();

virtual void priv_reverse_finalize();

virtual void priv_interrupt();

INLINE bool is_event_ready();

INLINE int get_event_index() const;

INLINE double get_event_t() const;

INLINE EventType get_event_type() const;

void pop_event();

virtual void write(std::ostream &out, int indent_level) const;

void timeline(std::ostream &out) const;

virtual void do_recompute();

class IntervalDef {

};

enum PlaybackEventType {

};

class PlaybackEvent {

};

class EventQueueEntry {

};

typedef pvector<IntervalDef> Defs;

typedef pvector<PlaybackEvent *> PlaybackEvents;

// ActiveEvents must be either a list or a vector--something that preserves

// order--so we can call priv_step() on the currently active intervals in

// the order they were encountered.

typedef plist<PlaybackEvent *> ActiveEvents;

typedef pdeque<EventQueueEntry> EventQueue;

INLINE int double_to_int_time(double t) const;

INLINE double int_to_double_time(int time) const;

void clear_events();

void do_event_forward(PlaybackEvent *event, ActiveEvents &new_active,

bool is_initial);

void finish_events_forward(int now, ActiveEvents &new_active);

void do_event_reverse(PlaybackEvent *event, ActiveEvents &new_active,

bool is_initial);

void finish_events_reverse(int now, ActiveEvents &new_active);

void enqueue_event(int n, CInterval::EventType event_type, bool is_initial,

int time = 0);

void enqueue_self_event(CInterval::EventType event_type, double t = 0.0);

void enqueue_done_event();

bool service_event_queue();

int recompute_level(int n, int level_begin, int &level_end);

int get_begin_time(const IntervalDef &def, int level_begin,

int previous_begin, int previous_end);

void write_event_desc(std::ostream &out, const IntervalDef &def,

int &extra_indent_level) const;

double _precision;

Defs _defs;

int _current_nesting_level;

PlaybackEvents _events;

ActiveEvents _active;

int _end_time;

size_t _next_event_index;

bool _processing_events;

// This is the queue of events that have occurred due to a recent

// priv_initialize(), priv_step(), etc., but have not yet been serviced, due

// to an embedded external (e.g. Python) interval that the scripting

// language must service. This queue should be considered precious, and

// should never be arbitrarily flushed without servicing all of its events.

EventQueue _event_queue;

static TypeHandle get_class_type() {

return _type_handle;

}

static void init_type() {

}

virtual TypeHandle get_type() const {

return get_class_type();

}

virtual TypeHandle force_init_type() {init_type(); return get_class_type();}

static TypeHandle _type_handle;

};

#include "cMetaInterval.I"

#endif