90 lines
1.8 KiB
Mathematica
90 lines
1.8 KiB
Mathematica
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// PlaybackButtons.m
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// Cog
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//
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// Created by Vincent Spader on 2/28/09.
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// Copyright 2009 __MyCompanyName__. All rights reserved.
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//
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#import "PlaybackButtons.h"
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#import "PlaybackController.h"
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#import <CogAudio/Status.h>
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@implementation PlaybackButtons
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static NSString *PlaybackButtonsPlaybackStatusObservationContext = @"PlaybackButtonsPlaybackStatusObservationContext";
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- (void)dealloc
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{
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[self stopObserving];
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[super dealloc];
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}
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- (void)awakeFromNib
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{
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[self startObserving];
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}
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- (void)startObserving
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{
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[playbackController addObserver:self forKeyPath:@"playbackStatus" options:(NSKeyValueObservingOptionNew | NSKeyValueObservingOptionInitial) context:PlaybackButtonsPlaybackStatusObservationContext];
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}
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- (void)stopObserving
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{
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[playbackController removeObserver:self forKeyPath:@"playbackStatus"];
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}
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- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
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{
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if ([PlaybackButtonsPlaybackStatusObservationContext isEqual:context])
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{
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NSInteger playbackStatus = [[change objectForKey:NSKeyValueChangeNewKey] integerValue];
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NSImage *image = nil;
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if (playbackStatus == kCogStatusPlaying || playbackStatus == kCogStatusFading) {
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image = [NSImage imageNamed:@"pause"];
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}
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else {
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image = [NSImage imageNamed:@"play"];
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}
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[self setImage:image forSegment:1];
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}
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else
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{
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[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
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}
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}
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- (BOOL)sendAction:(SEL)theAction to:(id)theTarget
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{
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NSLog(@"Mouse down!");
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int clickedSegment = [self selectedSegment];
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if (clickedSegment == 0) //Previous
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{
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[playbackController prev:self];
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}
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else if (clickedSegment == 1) //Play
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{
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[playbackController playPauseResume:self];
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}
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else if (clickedSegment == 2) //Next
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{
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[playbackController next:self];
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}
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else {
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return NO;
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}
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return YES;
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}
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@end
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