/* UIToggleButton.m
 *
 * Copyright (C) 2011  Belledonne Comunications, Grenoble, France
 *
 *  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; either version 2 of the License, or   
 *  (at your option) any later version.                                 
 *                                                                      
 *  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 "UIToggleButton.h"

@implementation UIToggleButton

- (void)touchUp:(id) sender {
	[self toggle];
}

- (bool)toggle {
	if (self.selected) {
		self.selected=!self.selected;
		[self onOff];
	} else {
        self.selected=!self.selected;
		[self onOn];
	}
	return self.selected;
}

- (bool)update {
	self.selected = [self onUpdate];
	return self.selected;
}

- (id)init {
    [self update];
	[self addTarget:self action:@selector(touchUp:) forControlEvents:UIControlEventTouchUpInside];
	return self;
}

- (id)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
		[self init];
    }
    return self;
}

- (id)initWithCoder:(NSCoder *)decoder {
    self = [super initWithCoder:decoder];
    if (self) {
		[self init];
	}
    return self;
}	

- (void)dealloc {
    [super dealloc];
}

-(void) onOn {
    [NSException raise:NSInternalInconsistencyException 
                format:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)];
}
-(void) onOff {
    [NSException raise:NSInternalInconsistencyException 
                format:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)];
}
-(bool) onUpdate {
    [NSException raise:NSInternalInconsistencyException 
                format:@"You must override %@ in a subclass", NSStringFromSelector(_cmd)];
    return false;
}

@end