project_files/HedgewarsMobile/Classes/SavedGamesViewController.m
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the most important commit of the year
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/*
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 * Hedgewars-iOS, a Hedgewars port for iOS devices
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 * Copyright (c) 2009-2012 Vittorio Giovara <vittorio.giovara@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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 *
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 * File created on 22/09/2010.
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 */
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#import "SavedGamesViewController.h"
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#import "GameInterfaceBridge.h"
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@implementation SavedGamesViewController
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@synthesize tableView, listOfSavegames, numberOfItems;
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-(BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation) interfaceOrientation {
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    return rotationManager(interfaceOrientation);
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}
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-(void) updateTable {
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    NSArray *contentsOfDir = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:SAVES_DIRECTORY() error:NULL];
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    NSMutableArray *array = [[NSMutableArray alloc] initWithArray:contentsOfDir copyItems:YES];
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    self.listOfSavegames = array;
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    [array release];
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    self.numberOfItems = [self.listOfSavegames count];
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    [self.tableView reloadData];
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}
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-(void) viewDidLoad {
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    [self.tableView setBackgroundColorForAnyTable:[UIColor clearColor]];
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    NSString *imgName = (IS_IPAD()) ? @"mediumBackground~ipad.png" : @"smallerBackground~iphone.png";
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    UIImage *img = [[UIImage alloc] initWithContentsOfFile:imgName];
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    UIImageView *background = [[UIImageView alloc] initWithImage:img];
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    [img release];
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    background.frame = self.view.frame;
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    background.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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    [self.view insertSubview:background atIndex:0];
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    [background release];
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    if (self.listOfSavegames == nil)
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        [self updateTable];
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    [super viewDidLoad];
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}
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-(void) viewWillAppear:(BOOL)animated {
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    [self updateTable];
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    [super viewWillAppear:animated];
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}
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#pragma mark -
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#pragma mark button functions
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-(IBAction) buttonPressed:(id) sender {
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    UIButton *button = (UIButton *)sender;
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    if (button.tag == 0) {
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        [AudioManagerController playBackSound];
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        [self.tableView setEditing:NO animated:YES];
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        [[self parentViewController] dismissModalViewControllerAnimated:YES];
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    } else {
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        NSString *titleStr, *cancelStr, *confirmStr;
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        titleStr = NSLocalizedString(@"Are you reeeeeally sure?", @"");
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        cancelStr = NSLocalizedString(@"Well, maybe not...", @"");
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        confirmStr = NSLocalizedString(@"Of course!", @"");
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        UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:titleStr
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                                                                 delegate:self
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                                                        cancelButtonTitle:cancelStr
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                                                   destructiveButtonTitle:confirmStr
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                                                        otherButtonTitles:nil];
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        if (IS_IPAD())
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            [actionSheet showFromBarButtonItem:(UIBarButtonItem *)sender animated:YES];
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        else
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            [actionSheet showInView:self.view];
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        [actionSheet release];
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    }
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}
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-(void) actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger) buttonIndex {
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    if ([actionSheet cancelButtonIndex] != buttonIndex) {
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        // remove all files and recreate the directory
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        [[NSFileManager defaultManager] removeItemAtPath:SAVES_DIRECTORY() error:NULL];
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        [[NSFileManager defaultManager] createDirectoryAtPath:SAVES_DIRECTORY() withIntermediateDirectories:NO attributes:nil error:NULL];
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        // update the table and the cached list
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        NSMutableArray *array = [[NSMutableArray alloc] initWithCapacity:self.numberOfItems];
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        for (int i = 0; i < self.numberOfItems; i++)
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            [array addObject:[NSIndexPath indexPathForRow:i inSection:0]];
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        self.numberOfItems = 0;
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        [self.tableView deleteRowsAtIndexPaths:array withRowAnimation:UITableViewRowAnimationTop];
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        [self.listOfSavegames removeAllObjects];
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        [array release];
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    }
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}
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#pragma mark -
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#pragma mark Table view data source
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-(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView {
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    return 1;
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}
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-(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
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    return self.numberOfItems;
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}
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-(UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
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    static NSString *CellIdentifier = @"Cell";
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    if (self.listOfSavegames == nil)
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        [self updateTable];
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    EditableCellView *editableCell = (EditableCellView *)[aTableView dequeueReusableCellWithIdentifier:CellIdentifier];
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    if (editableCell == nil) {
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        editableCell = [[[EditableCellView alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
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        editableCell.delegate = self;
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    }
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    editableCell.respectEditing = YES;
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    editableCell.textField.text = [[self.listOfSavegames objectAtIndex:[indexPath row]] stringByDeletingPathExtension];
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    editableCell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
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    return (UITableViewCell *)editableCell;
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}
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-(UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger) section {
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    UIView *footer = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.tableView.frame.size.width, 60)];
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    footer.backgroundColor = [UIColor clearColor];
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    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, self.tableView.frame.size.width*60/100, 60)];
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    label.center = CGPointMake(self.tableView.frame.size.width/2, 30);
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    label.textAlignment = UITextAlignmentCenter;
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    label.font = [UIFont italicSystemFontOfSize:16];
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    label.textColor = [UIColor lightGrayColor];
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    label.numberOfLines = 5;
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    label.text = NSLocalizedString(@"Press to resume playing or swipe to delete the save file.",@"");
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    label.backgroundColor = [UIColor clearColor];
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    [footer addSubview:label];
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    [label release];
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    return [footer autorelease];
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}
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-(CGFloat) tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
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    return 60;
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}
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-(void) tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
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    [(EditableCellView *)[self.tableView cellForRowAtIndexPath:indexPath] save:nil];
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    self.numberOfItems--;
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    [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationLeft];
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    NSString *saveName = [self.listOfSavegames objectAtIndex:[indexPath row]];
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    NSString *filePath = [NSString stringWithFormat:@"%@/%@",SAVES_DIRECTORY(),saveName];
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    [[NSFileManager defaultManager] removeItemAtPath:filePath error:nil];
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    [self.listOfSavegames removeObject:saveName];
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}
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#pragma mark -
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#pragma mark Table view delegate
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-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
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    [self.tableView deselectRowAtIndexPath:indexPath animated:YES];
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    if (self.listOfSavegames == nil)
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        [self updateTable];
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    // duplicate the entry
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    [(EditableCellView *)[self.tableView cellForRowAtIndexPath:indexPath] save:nil];
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    NSString *currentSaveName = [self.listOfSavegames objectAtIndex:[indexPath row]];
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    NSString *currentFilePath = [[NSString alloc] initWithFormat:@"%@/%@",SAVES_DIRECTORY(),currentSaveName];
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    NSString *newSaveName = [[NSString alloc] initWithFormat:@"[%@] %@",NSLocalizedString(@"Backup",@""),currentSaveName];
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    NSString *newFilePath = [[NSString alloc] initWithFormat:@"%@/%@",SAVES_DIRECTORY(),newSaveName];
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    [self.listOfSavegames addObject:newSaveName];
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    [newSaveName release];
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    [[NSFileManager defaultManager] copyItemAtPath:currentFilePath toPath:newFilePath error:nil];
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    [newFilePath release];
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    self.numberOfItems++;
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    [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone];
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    [GameInterfaceBridge registerCallingController:self];
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    [GameInterfaceBridge startSaveGame:currentFilePath];
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    [currentFilePath release];
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}
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#pragma mark -
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#pragma mark editableCellView delegate
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// rename old file if names differ
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-(void) saveTextFieldValue:(NSString *)textString withTag:(NSInteger) tagValue {
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    if (self.listOfSavegames == nil)
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        [self updateTable];
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    NSString *oldFilePath = [NSString stringWithFormat:@"%@/%@",SAVES_DIRECTORY(),[self.listOfSavegames objectAtIndex:tagValue]];
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    NSString *newFilePath = [NSString stringWithFormat:@"%@/%@.hws",SAVES_DIRECTORY(),textString];
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    if ([oldFilePath isEqualToString:newFilePath] == NO) {
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        [[NSFileManager defaultManager] moveItemAtPath:oldFilePath toPath:newFilePath error:nil];
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        [self.listOfSavegames replaceObjectAtIndex:tagValue withObject:[textString stringByAppendingString:@".hws"]];
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    }
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}
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#pragma mark -
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#pragma mark Memory Management
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-(void) didReceiveMemoryWarning {
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    self.listOfSavegames = nil;
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    MSG_MEMCLEAN();
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    [super didReceiveMemoryWarning];
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}
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-(void) viewDidUnload {
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    self.tableView = nil;
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    self.listOfSavegames = nil;
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    MSG_DIDUNLOAD();
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    [super viewDidUnload];
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}
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-(void) dealloc {
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    releaseAndNil(tableView);
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    releaseAndNil(listOfSavegames);
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    [super dealloc];
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}
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@end