MKPerformer.h

Go to the documentation of this file.

/*
  $Id: MKPerformer.h 3623 2009-09-25 11:14:32Z leighsmith $
  Defined In: The MusicKit

  Description:
    Full description is in the class description below.  

  Original Author: David A. Jaffe

  Copyright (c) 1988-1992, NeXT Computer, Inc.
  Portions Copyright (c) 1994 NeXT Computer, Inc. and reproduced under license from NeXT
  Portions Copyright (c) 1994 Stanford University.
  Portions Copyright (c) 1999-2004, The MusicKit Project.
*/
#ifndef __MK_Performer_H___
#define __MK_Performer_H___

#import <Foundation/Foundation.h>
#import "MKNoteSender.h"
#import "MKConductor.h"

typedef enum _MKPerformerStatus {
    MK_inactive,
    MK_active,
    MK_paused
} MKPerformerStatus;

@interface MKPerformer : NSObject
{
    MKConductor *conductor;
    MKPerformerStatus status;
    int performCount;
    double timeShift;
    double duration;
    double time;
    double nextPerform;
    NSMutableArray *noteSenders;
    id delegate;

@private
    double _pauseOffset;          // Difference between the beat when a performer is paused and its time.
    double _endTime;              // End time for the object. Subclass should not set _endTime.
    MKMsgStruct *_performMsgPtr;
    MKMsgStruct *_deactivateMsgPtr;
    MKMsgStruct *_pauseForMsgPtr;
}

- (NSArray *) noteSenders; 

- (BOOL) isNoteSenderPresent: (MKNoteSender *) aNoteSender; 

- disconnectNoteSenders;

- releaseNoteSenders; 

- removeNoteSenders; 

- (MKNoteSender *) noteSender; 

- (MKNoteSender *) removeNoteSender: (MKNoteSender *) aNoteSender; 

- (MKNoteSender *) addNoteSender: (MKNoteSender *) aNoteSender; 

- (BOOL) setConductor: (MKConductor *) aConductor;

- (MKConductor *) conductor; 

- activateSelf; 

- perform; 

- setTimeShift: (double) timeShift;

- setDuration: (double) dur; 

- (double) timeShift;

- (double) duration; 

- (int) status; 

- (int) performCount; 

- activate; 

- (void) deactivate;

- init; 

- pause; 

-pauseFor: (double) beats;

- resume; 

- copyWithZone: (NSZone *) zone;

- (double) time; 

- setFirstTimeTag: (double) v;

- setLastTimeTag: (double) v;

- (double) firstTimeTag;

- (double) lastTimeTag;

- (void) setDelegate: (id) object;

- delegate;

- rescheduleBy: (double) aTimeIncrement;

- rescheduleAtTime: (double) aTime;

- (void) encodeWithCoder: (NSCoder *) aCoder;

- (id) initWithCoder: (NSCoder *) aDecoder;

- (BOOL) inPerformance;

@end

/* Describes the protocol that may be implemented by the delegate: */
#import "MKPerformerDelegate.h"

#endif

---