/*

     File: NumberPickerController.m

 Abstract: Controller that lets the user pick a number.

  Version: 1.1

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 */

#import "NumberPickerController.h"

// NumberCell is a trivial subclass of UITableViewCell that allows us 

// to set the number in IB via the "user defined runtime attributes" 

// inspector.

@interface NumberCell : UITableViewCell

@property (nonatomic, copy,   readwrite) NSNumber *     number;

@end

@implementation NumberCell

@end

@interface NumberPickerController ()

@end

@implementation NumberPickerController

- (void)didChooseNumber:(NSNumber *)number

{

    id<NumberPickerControllerDelegate>  strongDelegate;

    // number may be nil

    strongDelegate = self.delegate;

    [strongDelegate numberPicker:self didChooseNumber:number];

}

- (void)tableView:(UITableView *)tv didSelectRowAtIndexPath:(NSIndexPath *)indexPath

{

    #pragma unused(tv)

    #pragma unused(indexPath)

    NumberCell *                        cell;

    assert(tv == self.tableView);

    assert(indexPath != NULL);

    cell = (NumberCell *) [self.tableView cellForRowAtIndexPath:indexPath];

    assert([cell isKindOfClass:[NumberCell class]]);

    [self.tableView deselectRowAtIndexPath:indexPath animated:YES];

    [self didChooseNumber:cell.number];

}

- (IBAction)cancelAction:(id)sender

{

    #pragma unused(sender)

    [self didChooseNumber:nil];

}

@end