106 lines
2.5 KiB
Objective-C
106 lines
2.5 KiB
Objective-C
//
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// MIKMIDIPolyphonicKeyPressureEvent.m
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// MIKMIDI
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//
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// Created by Andrew Madsen on 3/4/15.
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// Copyright (c) 2015 Mixed In Key. All rights reserved.
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//
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#import "MIKMIDIPolyphonicKeyPressureEvent.h"
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#import "MIKMIDIEvent_SubclassMethods.h"
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#import "MIKMIDIUtilities.h"
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#if !__has_feature(objc_arc)
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#error MIKMIDIPolyphonicKeyPressureEvent.m must be compiled with ARC. Either turn on ARC for the project or set the -fobjc-arc flag for MIKMIDIPolyphonicKeyPressureEvent.m in the Build Phases for this target
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#endif
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@interface MIKMIDIChannelEvent (Protected)
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@property (nonatomic, readwrite) UInt8 channel;
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@property (nonatomic, readwrite) UInt8 dataByte1;
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@property (nonatomic, readwrite) UInt8 dataByte2;
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@end
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@interface MIKMIDIPolyphonicKeyPressureEvent ()
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@property (nonatomic, readwrite) UInt8 note;
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@property (nonatomic, readwrite) UInt8 pressure;
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@end
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@implementation MIKMIDIPolyphonicKeyPressureEvent
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+ (void)load { [MIKMIDIEvent registerSubclass:self]; }
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+ (NSArray *)supportedMIDIEventTypes { return @[@(MIKMIDIEventTypeMIDIPolyphonicKeyPressureMessage)]; }
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+ (Class)immutableCounterpartClass { return [MIKMIDIPolyphonicKeyPressureEvent class]; }
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+ (Class)mutableCounterpartClass { return [MIKMutableMIDIPolyphonicKeyPressureEvent class]; }
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+ (BOOL)isMutable { return NO; }
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+ (NSData *)initialData
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{
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MIDIChannelMessage message = {
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.status = MIKMIDIChannelEventTypePolyphonicKeyPressure,
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.data1 = 0,
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.data2 = 0,
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.reserved = 0,
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};
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return [NSData dataWithBytes:&message length:sizeof(message)];
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}
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- (NSString *)additionalEventDescription
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{
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return [NSString stringWithFormat:@"note: %u pressure: %u", (unsigned)self.note, (unsigned)self.pressure];
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}
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#pragma mark - Properties
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+ (NSSet *)keyPathsForValuesAffectingNote
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{
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return [NSSet setWithObjects:@"dataByte1", nil];
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}
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- (UInt8)note
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{
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return self.dataByte1;
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}
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- (void)setNote:(UInt8)note
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{
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if (![[self class] isMutable]) return MIKMIDI_RAISE_MUTATION_ATTEMPT_EXCEPTION;
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self.dataByte1 = MIN(note, 127);
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}
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+ (NSSet *)keyPathsForValuesAffectingPressure
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{
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return [NSSet setWithObjects:@"dataByte2", nil];
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}
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- (UInt8)pressure
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{
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return self.dataByte2;
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}
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- (void)setPressure:(UInt8)pressure
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{
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if (![[self class] isMutable]) return MIKMIDI_RAISE_MUTATION_ATTEMPT_EXCEPTION;
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self.dataByte2 = MIN(pressure, 127);
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}
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@end
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@implementation MIKMutableMIDIPolyphonicKeyPressureEvent
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@dynamic note;
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@dynamic pressure;
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@dynamic timeStamp;
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@dynamic data;
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@dynamic channel;
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@dynamic dataByte1;
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@dynamic dataByte2;
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+ (BOOL)isMutable { return YES; }
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@end |