/*

     File: CAPlayThroughController.mm 

 Abstract: CAPlayThough Classes. 

  Version: 1.2.2 

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*/ 

#import "CAPlayThroughController.h"

@implementation CAPlayThroughController

static void BuildDeviceMenu(AudioDeviceList *devlist, NSPopUpButton *menu, AudioDeviceID initSel);

- (id)init

{

    mInputDeviceList = new AudioDeviceList(true);

    mOutputDeviceList = new AudioDeviceList(false);

    return self;

}

- (void)awakeFromNib

{

    UInt32 propsize = sizeof(AudioDeviceID);

    AudioObjectPropertyAddress theAddress = { kAudioHardwarePropertyDefaultInputDevice,

                                              kAudioObjectPropertyScopeGlobal,

                                              kAudioObjectPropertyElementMaster };

    verify_noerr (AudioObjectGetPropertyData(kAudioObjectSystemObject,

                                                   &theAddress,

                                                   0,

                                                   NULL,

                                                   &propsize,

                                                   &inputDevice));

    propsize = sizeof(AudioDeviceID);

    theAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;

    verify_noerr (AudioObjectGetPropertyData(kAudioObjectSystemObject,

                                                   &theAddress,

                                                   0,

                                                   NULL,

                                                   &propsize,

                                                   &outputDevice));

    BuildDeviceMenu(mInputDeviceList, mInputDevices, inputDevice);

    BuildDeviceMenu(mOutputDeviceList, mOutputDevices, outputDevice);

    playThroughHost = new CAPlayThroughHost(inputDevice,outputDevice);

    if(!playThroughHost)

    {

        NSLog(@"ERROR: playThroughHost init failed!");

        exit(1);

    }

}

- (void) dealloc 

{

    delete playThroughHost;         

    playThroughHost =0;

    delete mInputDeviceList;

    delete mOutputDeviceList;

    [super dealloc];

}

- (void)start: (id)sender

{

    if( !playThroughHost->IsRunning())

    {

        [mStartButton setTitle:@" Press to Stop"];

        playThroughHost->Start();

        [mProgress setHidden: NO];

        [mProgress startAnimation:sender];

    }

}

- (void)stop: (id)sender

{

    if( playThroughHost->IsRunning())

    {   

        [mStartButton setTitle:@"Start Play Through"];

        playThroughHost->Stop();

        [mProgress setHidden: YES];

        [mProgress stopAnimation:sender];

    }

}

- (void)resetPlayThrough

{

    if(playThroughHost->PlayThroughExists())

        playThroughHost->DeletePlayThrough();

    playThroughHost->CreatePlayThrough(inputDevice, outputDevice);

}

- (IBAction)startStop:(id)sender

{

    if(!playThroughHost->PlayThroughExists())

    {

        playThroughHost->CreatePlayThrough(inputDevice, outputDevice);

    }

    if( !playThroughHost->IsRunning())

        [self start:sender];

    else

        [self stop:sender];

}

- (IBAction)inputDeviceSelected:(id)sender

{

    int val = [mInputDevices indexOfSelectedItem];

    AudioDeviceID newDevice =(mInputDeviceList->GetList())[val].mID;

    if(newDevice != inputDevice)

    {       

        [self stop:sender];

        inputDevice = newDevice;

        [self resetPlayThrough];

    }

}

- (IBAction)outputDeviceSelected:(id)sender

{

    int val = [mOutputDevices indexOfSelectedItem];

    AudioDeviceID newDevice = (mOutputDeviceList->GetList())[val].mID;

    if(newDevice != outputDevice)

    { 

        [self stop:sender];

        outputDevice = newDevice;

        [self resetPlayThrough];

    }

}

static void BuildDeviceMenu(AudioDeviceList *devlist, NSPopUpButton *menu, AudioDeviceID initSel)

{

    [menu removeAllItems];

    AudioDeviceList::DeviceList &thelist = devlist->GetList();

    int index = 0;

    for (AudioDeviceList::DeviceList::iterator i = thelist.begin(); i != thelist.end(); ++i, ++index) {

        while([menu itemWithTitle:[NSString stringWithCString: (*i).mName encoding:NSASCIIStringEncoding]] != nil) {

            strcat((*i).mName, " ");

        }

        if([menu itemWithTitle:[NSString stringWithCString: (*i).mName encoding:NSASCIIStringEncoding]] == nil) {

            [menu insertItemWithTitle: [NSString stringWithCString: (*i).mName encoding:NSASCIIStringEncoding] atIndex:index];

        if (initSel == (*i).mID)

            [menu selectItemAtIndex: index];

        }

    }

}

@end