Google Code-in: Center help text field
Modifies the grid layout slightly so that the help text which appears when hovering over certain elements is centered with respect to the window, even when there are more buttons on one side.
https://google-melange.appspot.com/gci/task/view/google/gci2012/7968226
/*
* Hedgewars-iOS, a Hedgewars port for iOS devices
* Copyright (c) 2009-2012 Vittorio Giovara <vittorio.giovara@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#import "HoldTableViewCell.h"
@implementation HoldTableViewCell
@synthesize delegate;
#define SWIPE_DRAG_HORIZ_MIN 10
#define SWIPE_DRAG_VERT_MAX 40
-(id) initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
if ((self = [super initWithStyle:style reuseIdentifier:reuseIdentifier])) {
delegate = nil;
}
return self;
}
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
time = touch.timestamp;
[self performSelector:@selector(holdAction) withObject:nil afterDelay:0.25];
[super touchesBegan:touches withEvent:event];
}
-(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
if ( touch.timestamp - time < 0.25 ) {
[NSObject cancelPreviousPerformRequestsWithTarget:self
selector:@selector(holdAction)
object:nil];
[super touchesEnded:touches withEvent:event];
} else
[super touchesCancelled:touches withEvent:event];
}
-(void) holdAction {
if (self.delegate != nil && [self.delegate respondsToSelector:@selector(holdAction:onTable:)])
[self.delegate holdAction:self.textLabel.text onTable:(UITableView *)self.superview];
}
-(void) dealloc {
self.delegate = nil;
[super dealloc];
}
@end