/*

 File: ICAHandler.m

 Abstract: ICAHandler

 Version: 1.0

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 */ 

#import "ICAHandler.h"

@implementation ICAHandler

// ---------------------------------------------------------------------------------------------------------------------

- (BOOL)applicationShouldTerminateAfterLastWindowClosed: (NSApplication *)sender

{

    // return YES to allow the application to terminate when the user closes the last window the application has open

    return YES;

}

// ---------------------------------------------------------------------------------------------------------------------

- (void)awakeFromNib

{

    // mDeviceNames - contains the names of all connected devices

    mDeviceNames = [[NSMutableArray alloc] init];

    // find out what devices are connected

    [self getDevices];

}

// ---------------------------------------------------------------------------------------------------------------------

- (void)dealloc

{

    [mDeviceNames release];

    [super dealloc];

}

#pragma mark -

// NSTableDataSource

// ---------------------------------------------------------------------------------------------------------------------

- (int)numberOfRowsInTableView:(NSTableView *)tableView

{

    // return device count - if there's no device return 0 (to display 'No camera connected')

    return MAX(1, [mDeviceNames count]);

}

// ---------------------------------------------------------------------------------------------------------------------

- (id)tableView: (NSTableView *)tableView

 objectValueForTableColumn: (NSTableColumn *)tableColumn

            row: (int)row

{

    NSString * identifier = [tableColumn identifier];

    // if we have at least one device connected...

    if ([mDeviceNames count])

    {

        if ([identifier isEqualToString: @"name"])          // name

            return [mDeviceNames objectAtIndex: row];

        else if ([identifier isEqualToString: @"icon"])     // icon

            return NULL;

    } else 

    {

        // ... else: for the name return 'No camera connected'

        if ([identifier isEqualToString: @"name"])

            return @"No camera connected";

    }

    return NULL;

}

@end

#pragma mark -

@implementation ICAHandler(Step1)

// Image Capture ...

// ---------------------------------------------------------------------------------------------------------------------

- (void)getDevices

{

    OSErr               err;

    ICAGetDeviceListPB  pb = {};

    // call ICAGetDeviceList (synchronous: callback proc is NULL)

    err = ICAGetDeviceList(&pb, NULL);

    if (noErr == err)

    {

        // save the device list object for later use

        mDeviceList = pb.object;

        // get more information about the device list

        [self getDeviceListPropertyDictionary];

    }

}

// ---------------------------------------------------------------------------------------------------------------------

- (void)getDeviceListPropertyDictionary

{

    OSErr                             err;

    ICACopyObjectPropertyDictionaryPB pb = {};

    NSDictionary*                     devDict;

    // get the property dictionary for the mDeviceList ICAObject

    pb.object  = mDeviceList;

    pb.theDict = (CFDictionaryRef*)&devDict;

    // call ICACopyObjectPropertyDictionary (synchronous: callback proc is NULL)

    err = ICACopyObjectPropertyDictionary(&pb, NULL);

    if (noErr == err)

    {

        NSLog(@"%@", devDict);

        // note: this dictionary contains an array "devices"

        //       the "devices" array contains a dictionary for each connected device

        // update the mDeviceNames array 

        NSEnumerator * enumerator = [[devDict objectForKey: @"devices"] objectEnumerator];

        NSDictionary * device;

        while (device = [enumerator nextObject])

        {

            // get the device name ('ifil')

            [mDeviceNames addObject: [device objectForKey: @"ifil"]];

        }

        // update the table view

        [mTableView reloadData];

        [devDict release];

    }

}

@end