source: orbit/iOS/Orbit/Orbit/controllers/FlightViewController.m @ ab9d63b

//
//  FlightViewController.m
//  Orbit
//
//  Copyright (c) 2013 Puzzlebox Productions, LLC. All rights reserved.
//  Originally created by Jonathon Horsman.
//
//  This code is released under the GNU Public License (GPL) version 2
//  For more information please refer to http://www.gnu.org/copyleft/gpl.html
//

#import <QuartzCore/QuartzCore.h>
#import "FlightViewController.h"
#import "AppDelegate.h"
#import "SignalConverter.h"

#define STATUS_DEFAULT 0
#define STATUS_CONNECTING 1
#define STATUS_CONNECTED 2
#define STATUS_PROCESSING 3
#define STATUS_ACTIVE 4

@implementation FlightViewController {
    SignalConverter *signalConverter;
}

@synthesize status, attention, meditation, signal, power, attentionThreshold, meditationThreshold, connectButton, statusImage;

- (void)viewDidLoad
{
    [super viewDidLoad];
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    signalConverter = appDelegate.signalConverter;
    
    signalConverter.delegate = self;
    [self.attentionThreshold addTarget:self action:@selector(sliderChanged) forControlEvents:UIControlEventValueChanged];
    [self.meditationThreshold addTarget:self action:@selector(sliderChanged) forControlEvents:UIControlEventValueChanged];
    [signalConverter prepare];
}

// Start the data stream from the bluetooth headset if it's attached, and reset the display output
- (void) appForegrounded
{
    [self resetViews]; // just in case it didn't happen on close
}

#pragma mark view updates

// Set all levels back to zero
- (void) resetViews
{
    signal.progress = 0;
    attention.progress = 0;
    meditation.progress = 0;
    power.progress = 0;
    [self logMessage:@"Disconnected"];
}

- (void) updateStatusImage:(int) statusNo
{
    [statusImage setImage: [UIImage imageNamed:[NSString stringWithFormat:@"status_%u", statusNo]]];
}

- (void) sliderChanged
{
    [signalConverter setValuesForAttention:attentionThreshold.value meditation:meditationThreshold.value];
//    
//    if (attentionThreshold.value < 0.2) {
//        [self updateStatusImage:STATUS_DEFAULT];
//    } else if (attentionThreshold.value < 0.4) {
//        [self updateStatusImage:STATUS_CONNECTING];
//    } else if (attentionThreshold.value < 0.6) {
//        [self updateStatusImage:STATUS_CONNECTED];
//    } else if (attentionThreshold.value < 0.8) {
//        [self updateStatusImage:STATUS_PROCESSING];
//    } else {
//        [self updateStatusImage:STATUS_ACTIVE];
//    }
}

- (void) logMessage:(NSString *) str
{
    status.text = str;
}

#pragma mark - SignalConverterDelegate methods

- (void) updatedValuesForSignal: (float)signalStrength
                      attention: (float)attentionLevel
                     meditation: (float)meditationLevel
                          power: (float)powerLevel
{
    self.signal.progress = signalStrength;
    self.signalPercent.text = [NSString stringWithFormat:@"%i%%", (int)(signalStrength * 100)];
    self.attention.progress = attentionLevel;
    self.attentionPercent.text = [NSString stringWithFormat:@"%i%%", (int)(attentionLevel * 100)];
    self.meditation.progress = meditationLevel;
    self.meditationPercent.text = [NSString stringWithFormat:@"%i%%", (int)(meditationLevel * 100)];
    self.power.progress = powerLevel;
    self.powerPercent.text = [NSString stringWithFormat:@"%i%%", (int)(powerLevel * 100)];
}

- (void) notifyHeadsetConnect
{
    [self logMessage:@"Headet connected"];
}

- (void) notifyHeadsetDisconnect
{
    // Reset the outputs back to zero
    [self resetViews];
    [self logMessage:@"Headet disconnected"];    
}

- (void) notifyDeviceConnected:(NSString *)name
{
    [self logMessage:[NSString stringWithFormat:@"EEG device %@ connected", name]];    
}

#pragma mark - button press events

- (IBAction) connectButtonPressed:(id) sender {
    
    if (signalConverter.running) {
        [signalConverter stopProcessing];
        connectButton.title = @"Connect";
        [self resetViews];
    } else {
        [self logMessage:@"Searching for device"];
        [signalConverter startProcessing];
        connectButton.title = @"Disconnect";
    }
}

@end