/usr/include/tse3/TimeSigTrack.h is in libtse3-dev 0.3.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* @(#)TimeSigTrack.h 3.00 24 May 1999
*
* Copyright (c) 2000 Pete Goodliffe (pete@cthree.org)
*
* This file is part of TSE3 - the Trax Sequencer Engine version 3.00.
*
* This library is modifiable/redistributable under the terms of the GNU
* General Public License.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING. If not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef TSE3_TIMESIGTRACK_H
#define TSE3_TIMESIGTRACK_H
#include "tse3/listen/TimeSigTrack.h"
#include "tse3/Notifier.h"
#include "tse3/Playable.h"
#include "tse3/Serializable.h"
#include "tse3/EventTrack.h"
namespace TSE3
{
/**
* TimeSig objects are representations of a time signature change that
* occurs in the @ref Song. They are held in the @ref TimeSigTrack.
*
* This class defines the type that is used to create @ref TimeSigEvents,
* which are of type @ref Event<@ref TimeSig>.
*
* When streamed from a @ref Playable interface (using the
* @ref TimeSigTrackIterator class) TimeSig objects are represented by a
* @ref MidiEvent containing a @ref MidiCommand_TSE_Meta @ref MidiCommand
* with data 1 byte as @ref MidiCommand_TSE_Meta_TimeSig.
*
* TimeSig is a value type.
*
* @short A time signature change
* @author Pete Goodliffe
* @version 3.00
* @see TimeSigTrack
* @see Event
*/
class TimeSig
{
public:
/**
* Create a TimeSig.
*
* @param top Time signature top value
* @param bottom Time signature bottom value
*/
TimeSig(int top = 4, int bottom = 4) : top(top), bottom(bottom) {}
/**
* The time signature top value.
*/
int top;
/**
* The time signature bottom value.
*/
int bottom;
int operator==(const TimeSig &t) const
{
return (top == t.top) && (bottom == t.bottom);
}
};
/**
* The TimeSigTrack provides a simple time ordered list of @ref TimeSig
* changes in the Song.
*
* There is one TimeSigTrack per @ref Song.
*
* @short A list of TimeSig events
* @author Pete Goodliffe
* @version 3.00
* @see Event
* @see TimeSig
*/
class TimeSigTrack : public EventTrack<TimeSig>,
public Serializable
{
public:
/**
* Creates an empty TimeSigTrack.
*/
TimeSigTrack();
virtual ~TimeSigTrack();
/**
* Returns the status of the TimeSigTrack.
*
* A value of true means timesig events are generated, a value of
* false means no timesig events are generated
*
* @return TimeSigTrack status
* @see setStatus
*/
bool status() const { return _status; }
/**
* Set the TimeSigTrack status value.
*
* @param s New TimeSigTrack status
* @see status
*/
void setStatus(bool s) { _status = s; }
/**
* Converts the given @p time value into a bar/beat/pulse
* set according to the time signatures in the TimeSigTrack.
*
* @param time (in) Time at which to find bar/beat/pulse
* @param bar (out) Returns bar value at @p time
* @param beat (out) Returns beat value at @p time
* @param pulse (out) Returns pulse value at @p time
*/
void barBeatPulse(Clock time, int &bar, int &beat, int &pulse);
/**
* @reimplemented
*/
virtual PlayableIterator *iterator(Clock index);
/**
* @reimplemented
*/
virtual Clock lastClock() const;
/**
* @reimplemented
*/
virtual void save(std::ostream &o, int i) const;
/**
* @reimplemented
*/
virtual void load(std::istream &i, SerializableLoadInfo &info);
private:
TimeSigTrack &operator=(const TimeSigTrack &);
TimeSigTrack(const TimeSigTrack &);
/**
* Used by load to read events
*/
void loadEvents(std::istream &i, int filePPQN);
bool _status;
};
}
#endif
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