author | nemo |
Wed, 31 Aug 2011 08:45:22 -0400 | |
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/* |
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* Hedgewars-iOS, a Hedgewars port for iOS devices |
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* Copyright (c) 2009-2011 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 03/07/2010. |
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*/ |
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#import "EditableCellView.h" |
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#import "CommodityFunctions.h" |
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@implementation EditableCellView |
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@synthesize delegate, textField, titleLabel, minimumCharacters, maximumCharacters, respectEditing, oldValue; |
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-(id) initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier { |
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if ((self = [super initWithStyle:style reuseIdentifier:reuseIdentifier])) { |
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delegate = nil; |
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textField = [[UITextField alloc] initWithFrame:CGRectZero]; |
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textField.backgroundColor = [UIColor clearColor]; |
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textField.delegate = self; |
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textField.clearButtonMode = UITextFieldViewModeWhileEditing; |
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textField.clearsOnBeginEditing = NO; |
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textField.returnKeyType = UIReturnKeyDone; |
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textField.adjustsFontSizeToFitWidth = YES; |
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textField.minimumFontSize = 9; |
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textField.userInteractionEnabled = YES; |
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textField.font = [UIFont boldSystemFontOfSize:[UIFont labelFontSize]]; |
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[textField addTarget:self action:@selector(save:) forControlEvents:UIControlEventEditingDidEndOnExit]; |
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[self.contentView addSubview:textField]; |
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//[textField release]; |
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titleLabel = [[UILabel alloc] init]; |
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titleLabel.textAlignment = UITextAlignmentLeft; |
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titleLabel.backgroundColor = [UIColor clearColor]; |
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titleLabel.font = [UIFont boldSystemFontOfSize:[UIFont labelFontSize]]; |
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[self.contentView addSubview:titleLabel]; |
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//[titleLabel release]; |
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minimumCharacters = 1; |
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maximumCharacters = 64; |
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respectEditing = NO; |
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oldValue = nil; |
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} |
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return self; |
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} |
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-(void) layoutSubviews { |
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[super layoutSubviews]; |
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CGRect contentRect = self.contentView.bounds; |
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CGFloat boundsX = contentRect.origin.x; |
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int offset = 0; |
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int skew = 0; |
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if (self.imageView != nil) |
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offset += self.imageView.frame.size.width; |
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if ([self.titleLabel.text length] == 0) |
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titleLabel.frame = CGRectZero; |
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else { |
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titleLabel.frame = CGRectMake(boundsX+offset+10, 10, 100, [UIFont labelFontSize] + 4); |
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offset += 100; |
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skew +=2; |
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} |
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textField.frame = CGRectMake(boundsX+offset+10, skew+10, 300, [UIFont labelFontSize] + 4); |
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} |
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-(void) setSelected:(BOOL)selected animated:(BOOL)animated { |
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[super setSelected:selected animated:animated]; |
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// Configure the view for the selected state |
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} |
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-(void) dealloc { |
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self.delegate = nil; |
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releaseAndNil(oldValue); |
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releaseAndNil(titleLabel); |
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releaseAndNil(textField); |
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[super dealloc]; |
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} |
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#pragma mark - |
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#pragma mark textField delegate |
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// limit the size of the field to 64 characters like in original frontend |
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-(BOOL) textField:(UITextField *)aTextField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string { |
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return !([aTextField.text length] > self.maximumCharacters && [string length] > range.length); |
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} |
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// allow editing only if delegate is set and conformant to protocol, and if editableOnlyWhileEditing |
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-(BOOL) textFieldShouldBeginEditing:(UITextField *)aTextField { |
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return (delegate != nil) && |
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[delegate respondsToSelector:@selector(saveTextFieldValue:withTag:)] && |
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(respectEditing) ? ((UITableView*)[self superview]).editing : YES; |
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} |
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// the textfield is being modified, update the navigation controller |
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-(void) textFieldDidBeginEditing:(UITextField *)aTextField{ |
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// don't interact with table below |
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((UITableView*)[self superview]).scrollEnabled = NO; |
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self.oldValue = self.textField.text; |
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UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"Cancel",@"") |
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style:UIBarButtonItemStylePlain |
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target:self |
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action:@selector(cancel:)]; |
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[(UITableViewController *)delegate navigationItem].leftBarButtonItem = cancelButton; |
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[cancelButton release]; |
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UIBarButtonItem *saveButton = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"Save",@"") |
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style:UIBarButtonItemStyleDone |
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target:self |
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action:@selector(save:)]; |
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[(UITableViewController *)delegate navigationItem].rightBarButtonItem = saveButton; |
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[saveButton release]; |
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} |
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/* with this a field might remain in editing status even if the view moved; |
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use method below instead that allows some more interaction |
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// don't accept 0-length strings |
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-(BOOL) textFieldShouldEndEditing:(UITextField *)aTextField { |
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return ([aTextField.text length] > 0); |
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} |
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*/ |
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-(BOOL) textFieldShouldReturn:(UITextField *)aTextField { |
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return ([aTextField.text length] >= self.minimumCharacters); |
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} |
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// the textfield has been modified, tell the delegate to do something |
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-(void) textFieldDidEndEditing:(UITextField *)aTextField { |
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// this forces a save when user selects a new field |
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if ([self.textField.text isEqualToString:self.oldValue] == NO) |
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[self save:aTextField]; |
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// restores default behaviour on caller |
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((UITableView*)[self superview]).scrollEnabled = YES; |
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[(UITableViewController *)delegate navigationItem].rightBarButtonItem = [(UITableViewController *)delegate navigationItem].backBarButtonItem; |
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[(UITableViewController *)delegate navigationItem].leftBarButtonItem = nil; |
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} |
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#pragma mark - |
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#pragma mark instance methods |
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// the user wants to show the keyboard |
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-(void) replyKeyboard { |
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[self.textField becomeFirstResponder]; |
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} |
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// the user pressed cancel so hide keyboard |
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-(void) cancel:(id) sender { |
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// reverts any changes and performs a fake save for removing the keyboard |
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self.textField.text = self.oldValue; |
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[self save:sender]; |
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} |
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// send the value to the delegate (called before textFieldDidEndEditing) |
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-(void) save:(id) sender { |
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if (delegate == nil || [delegate respondsToSelector:@selector(saveTextFieldValue:withTag:)] == NO) |
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return; |
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// don't save if the textfield is invalid |
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if ([self textFieldShouldReturn:textField] == NO) |
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return; |
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[delegate saveTextFieldValue:self.textField.text withTag:self.tag]; |
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[self.textField resignFirstResponder]; |
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self.oldValue = nil; |
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} |
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// when field is editable only when the tableview is editable, resign responder when exiting editing mode |
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-(void) willTransitionToState:(UITableViewCellStateMask)state { |
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if (respectEditing && state == UITableViewCellStateDefaultMask) |
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[self save:nil]; |
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[super willTransitionToState:state]; |
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} |
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@end |