/*

Copyright (C) 2016 Apple Inc. All Rights Reserved.

See LICENSE.txt for this sample’s licensing information

Abstract:

The Metering View

*/

#import <Cocoa/Cocoa.h>

@interface MeteringView : NSView {

    int     mNumChannels;

    double  mMinDB;

    double  mMaxDB;

    double  mMinValue;

    double  mMaxValue; 

    float   *mMeterValues;

    float   *mOldMeterValues;

    int     *mClipValues;

    float   firstTrackOffset;

    BOOL drawsMetersOnly;

    BOOL mHasClip;

}

- (void) setNumChannels: (int) num;

- (void) setMinValue: (double) num; // min value (usually 0)

- (void) setMaxValue: (double) num; // max value (usually 1 to √2)

- (void) setMinDB: (double) num; // min db value (usually -INF)

- (void) setMaxDB: (double) num; // max db value (usually 0 to +6)

- (void) setHasClipIndicator: (BOOL) hasClip;

- (void) updateMeters: (float *) meterValues;   // takes an array of floats

                                                // meterValue[0]: db value for channel 0

                                                // meterValue[1]: db peak for channel 0

                                                // meterValue[2]: db value for channel 1

                                                // meterValue[3]: db peak for channel 1 ...etc

@end