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−//  MXAudioPlayerFadeOperation.h
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−//
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−//  Created by Andrew Mackenzie-Ross on 30/11/10.
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−//  mackross.net
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−//
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−
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−#import <Foundation/Foundation.h>
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−
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−@class AVAudioPlayer;
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−@interface MXAudioPlayerFadeOperation : NSOperation {
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−  AVAudioPlayer *_audioPlayer;
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−  NSTimeInterval _fadeDuration;
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−  NSTimeInterval _delay;
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−  float _finishVolume;
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−  BOOL _pauseAfterFade;
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−  BOOL _stopAfterFade;
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−  BOOL _playBeforeFade;
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−}
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−
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−// The AVAudioPlayer that the volume fade will be applied to. 
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−// Retained until the fade is completed.
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−// Must be set with init method.
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−@property (nonatomic, retain, readonly) AVAudioPlayer *audioPlayer; 
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−
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−// The duration of the volume fade. 
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−// Default value is 1.0
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−@property (nonatomic, assign) NSTimeInterval fadeDuration; 
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−
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−// The delay before the volume fade begins. 
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−// Default value is 0.0
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−@property (nonatomic, assign) NSTimeInterval delay; 
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−
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−// The volume that will be faded to. 
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−// Default value is 0.0
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−@property (nonatomic, assign) float finishVolume; 
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−
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−// If YES, audio player will be sent a pause message when the fade has completed. 
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−// Default value is NO, however, if finishVolume is 0.0, default is YES
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−@property (nonatomic, assign) BOOL pauseAfterFade; 
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−
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−// If YES, when the fade has completed the audio player will be sent a stop message.
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−// Default value is NO.
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−@property (nonatomic, assign) BOOL stopAfterFade;
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−
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−// If YES, audio player will be sent a play message after the delay.
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−// Default value is YES.
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−@property (nonatomic, assign) BOOL playBeforeFade;
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−
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−// Init Methods
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−- (id)initFadeWithAudioPlayer:(AVAudioPlayer*)player toVolume:(float)volume overDuration:(NSTimeInterval)duration withDelay:(NSTimeInterval)timeDelay;
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−- (id)initFadeWithAudioPlayer:(AVAudioPlayer*)player toVolume:(float)volume overDuration:(NSTimeInterval)duration;
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−- (id)initFadeWithAudioPlayer:(AVAudioPlayer*)player toVolume:(float)volume;
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−- (id)initFadeWithAudioPlayer:(AVAudioPlayer*)player;
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−
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−@end