Pariece McKinney
132 lines
3.6 KiB
Objective-C
132 lines
3.6 KiB
Objective-C
/*
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Copyright (c) 2020, Apple Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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3. Neither the name of the copyright holder(s) nor the names of any contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission. No license is granted to the trademarks of
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the copyright holders even if such marks are included in this software.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "ORKAudioMeteringView.h"
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#import "ORKAudioGraphView.h"
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NSArray<NSNumber *> * ORKLastNSamples(NSArray<NSNumber *> *samples, NSInteger limit) {
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if (samples.count > limit) {
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return [samples subarrayWithRange:(NSRange){samples.count - limit, samples.count - 1}];
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}
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return [samples copy];
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}
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@interface ORKAudioMeteringView ()
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@property (nonatomic, strong) UIView<ORKAudioMetering, ORKAudioMeteringDisplay> *meteringView;
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@end
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@implementation ORKAudioMeteringView
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- (instancetype)init {
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self = [super init];
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if (self) {
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[self configureMeteringView];
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}
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return self;
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}
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- (instancetype)initWithFrame:(CGRect)frame {
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self = [super initWithFrame:frame];
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if (self) {
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[self configureMeteringView];
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}
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return self;
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}
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- (instancetype)initWithCoder:(NSCoder *)coder {
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self = [super initWithCoder:coder];
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if (self) {
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[self configureMeteringView];
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}
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return self;
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}
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- (void)configureMeteringView {
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if (!_meteringView) {
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[self setMeteringView:[[ORKAudioGraphView alloc] init]];
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}
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}
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- (void)layoutSubviews {
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[super layoutSubviews];
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[_meteringView setFrame:[self bounds]];
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}
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- (void)setHidden:(BOOL)hidden {
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[super setHidden:hidden];
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[_meteringView setHidden:hidden];
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}
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- (void)didMoveToSuperview {
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[super didMoveToSuperview];
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if ([self superview] == nil) {
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[_meteringView removeFromSuperview];
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}
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else {
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[self addSubview:_meteringView];
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}
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}
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#pragma mark - ORKAudioMetering
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- (void)setSamples:(NSArray<NSNumber *> *)samples {
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[_meteringView setSamples:samples];
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}
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- (void)setAlertThreshold:(float)threshold {
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[_meteringView setAlertThreshold:threshold];
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}
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#pragma mark - ORKAudioMeteringDisplay
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- (void)setMeterColor:(UIColor *)meterColor {
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[_meteringView setMeterColor:meterColor];
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}
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- (void)setAlertColor:(UIColor *)alertColor {
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[_meteringView setAlertColor:alertColor];
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}
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#pragma mark - UIAccessibility
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- (BOOL)isAccessibilityElement {
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return NO;
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}
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@end
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