/*

     File: PreferencesViewController.m

 Abstract: The PreferencesViewController object manages the views that make up the Metronome application preferences UI.

  Version: 2.2

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 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION

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 */

#import "PreferencesViewController.h"

#import "MetronomeViewController.h"

#import "MetronomeAppDelegate.h"

@implementation PreferencesViewController

@synthesize delegate;

#pragma mark -

#pragma mark === Action method ===

#pragma mark -

- (IBAction)done {

    [self.delegate preferencesViewControllerDidFinish:self];    

}

#pragma mark -

#pragma mark === View configuration ===

#pragma mark -

- (id)initWithNibName:(NSString *)nibName bundle:(NSBundle *)nibBundle {

    if (self = [super initWithNibName:nibName bundle:nibBundle]) {

        self.wantsFullScreenLayout = YES;

    }

    return self;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    // Return YES for supported orientations

    return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

#pragma mark -

#pragma mark === TableView datasource and delegate methods ===

#pragma mark -

/*

 Provide cells for the table, with each showing one of the available time signatures.

 */

- (NSInteger)tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section {

    MetronomeAppDelegate *appDelegate = (MetronomeAppDelegate *)[[UIApplication sharedApplication] delegate];

    return [appDelegate.timeSignatures count];

}

- (UITableViewCell *)tableView:(UITableView *)table cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *reuseIdentifier = @"PreferencesCellIdentifier";

    UITableViewCell *cell = [table dequeueReusableCellWithIdentifier:reuseIdentifier];

    if (cell == nil) {

        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseIdentifier] autorelease];

    }

    MetronomeAppDelegate *appDelegate = (MetronomeAppDelegate *)[[UIApplication sharedApplication] delegate];

    cell.textLabel.text = [appDelegate.timeSignatures objectAtIndex:indexPath.row];

    if (([appDelegate timeSignature] - 2) == indexPath.row) {

        cell.accessoryType = UITableViewCellAccessoryCheckmark;

    }

    return cell;

}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {

    // This table has only one section.

    return NSLocalizedString(@"Time Signature", @"Title for table that display time signatures");

}

- (void)tableView:(UITableView *)table didSelectRowAtIndexPath:(NSIndexPath *)newIndexPath {

    // When a new selection is made, display a check mark on the newly-selected time signature and remove check mark from old time signature.

    MetronomeAppDelegate *appDelegate = (MetronomeAppDelegate *)[[UIApplication sharedApplication] delegate];

    NSIndexPath *oldIndexPath = [NSIndexPath indexPathForRow:([appDelegate timeSignature] - 2) inSection:0];

    [[table cellForRowAtIndexPath:oldIndexPath] setAccessoryType:UITableViewCellAccessoryNone];

    [[table cellForRowAtIndexPath:newIndexPath] setAccessoryType:UITableViewCellAccessoryCheckmark];

    [table deselectRowAtIndexPath:newIndexPath animated:YES];

    if (newIndexPath.row == 0) {

        [appDelegate setTimeSignature:TimeSignatureTwoFour];

    }

    else if (newIndexPath.row == 1) {

        [appDelegate setTimeSignature:TimeSignatureThreeFour];

    }

    else {

        [appDelegate setTimeSignature:TimeSignatureFourFour];

    }

}

@end