InterAppAudioDelay/InterAppAudioDelay/ViewController.m

/*
     File: ViewController.m
 Abstract: 
  Version: 1.1.2
 
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#import "ViewController.h"
#import "Delay.h"
#import "AppDelegate.h"
 
@implementation IADelayViewController
 
#pragma mark Initialization / deallocation
- (void)dealloc {
    [delayAmount release];
    [delayAmountSlider release];
    [feedbackAmount release];
    [lowPassAmount release];
    [wetDryAmount release];
    [feedbackSlider release];
    [lowPassSlider release];
    [wetDrySlider release];
    
    [super dealloc];
}
 
- (void) viewDidLoad {
    [super viewDidLoad];
    
    transportView.engine = DELAY_ENGINE;
    [self setInitialSliderValues];
}
 
- (void) setInitialSliderValues {
    /* bind sliders to audio parameters and ranges */
    int delayTag = [DELAY_ENGINE getDelayTag];
    [delayAmountSlider setTag:delayTag];
    [delayAmountSlider setMinimumValue:[DELAY_ENGINE getMinValueForParam:delayTag]];
    [delayAmountSlider setMaximumValue:[DELAY_ENGINE getMaxValueForParam:delayTag]];
    
    //Get the initial slider values from the delay engine
    float delayTime = [DELAY_ENGINE delayTime];
    [delayAmountSlider setValue:delayTime];
    [delayAmount setText: [NSString stringWithFormat:@"%.02f secs", delayTime]];
    
    int wetDryTag = [DELAY_ENGINE getWetDryTag];
    [wetDrySlider setTag:wetDryTag];
    [wetDrySlider setMinimumValue:[DELAY_ENGINE getMinValueForParam:wetDryTag]];
    [wetDrySlider setMaximumValue:[DELAY_ENGINE getMaxValueForParam:wetDryTag]];
 
    //wetDrySlider
    float wetDry = [DELAY_ENGINE wetDryMix];
    [wetDrySlider setValue:wetDry];
    [wetDryAmount setText: [NSString stringWithFormat:@"%.01f %%", wetDry]];
    
    int feedbackTag = [DELAY_ENGINE getFeedbackTag];
    [feedbackSlider setMinimumValue:[DELAY_ENGINE getMinValueForParam:feedbackTag]];
    [feedbackSlider setMaximumValue:[DELAY_ENGINE getMaxValueForParam:feedbackTag]];
 
    //feedbackSlider
    float feedback = [DELAY_ENGINE feedback];
    [feedbackSlider setValue:feedback];
    [feedbackAmount setText: [NSString stringWithFormat:@"%.01f %%", feedback]];
 
    int lowPassCutoffTag = [DELAY_ENGINE getLowPassCutoffTag];
    [lowPassSlider setMinimumValue:[DELAY_ENGINE getMinValueForParam:lowPassCutoffTag]];
    [lowPassSlider setMaximumValue:[DELAY_ENGINE getMaxValueForParam:lowPassCutoffTag]];
 
    //lowPassSlider
    float lowPassCutOff = [DELAY_ENGINE lowPassCutoff];
    [lowPassSlider setValue:lowPassCutOff];
    [lowPassAmount setText: [NSString stringWithFormat:@"%.0f Hz", lowPassCutOff]];
 
    UIColor *keyColor = [UIColor colorWithRed:.988 green:.663 blue:.196 alpha:1];
    [delayAmountSlider  setMinimumTrackTintColor: keyColor];
    [wetDrySlider       setMinimumTrackTintColor: keyColor];
    [feedbackSlider     setMinimumTrackTintColor: keyColor];
    [lowPassSlider      setMinimumTrackTintColor: keyColor];
}
 
#pragma mark IBActions
- (IBAction) delayAmountSlider:(id) sender {
    [DELAY_ENGINE setDelayTime:[((UISlider *)sender) value]];
    [delayAmount setText: [NSString stringWithFormat:@"%.2f secs", [((UISlider *)sender) value]]];
}
 
- (IBAction) feedbackAmountSlider:(id) sender {
    [DELAY_ENGINE setFeedback:[((UISlider *)sender) value]];
    [feedbackAmount setText: [NSString stringWithFormat:@"%.1f %%", [((UISlider *)sender) value]]];
}
 
- (IBAction) lowpassAmountSlider:(id) sender {
    [DELAY_ENGINE setLowPassCutoff:[((UISlider *)sender) value]];
    [lowPassAmount setText: [NSString stringWithFormat:@"%.0f Hz", [((UISlider *)sender) value]]];
}
 
- (IBAction) wetDryAmountSlider:(id) sender {
    [DELAY_ENGINE setWetDryMix:[((UISlider *)sender) value]];
    [wetDryAmount setText: [NSString stringWithFormat:@"%.01f %%", [((UISlider *)sender) value]]];
}
 
@end