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//
// MOButton.m
// SimplyTweet
//
// Created by Hwee-Boon Yar on Feb/13/2010.
// Copyright 2010 MotionObj. All rights reserved.
//
#import "MOButton.h"
#import <QuartzCore/QuartzCore.h>
@implementation MOButton
@synthesize normalBackgroundColor;
@synthesize highlightedBackgroundColor;
@synthesize disabledBackgroundColor;
// Have to set up handlers for various touch events. Can't rely on UIButton.highlighted and enabled property because highlighted is still YES when touch up.
- (void)setupStateChangeHandlers {
[self addTarget:self action:@selector(buttonUp:event:) forControlEvents:(UIControlEventTouchUpOutside|UIControlEventTouchUpInside|UIControlEventTouchCancel|UIControlEventTouchDragExit)];
[self addTarget:self action:@selector(buttonDown:event:) forControlEvents:UIControlEventTouchDown|UIControlEventTouchDragEnter];
}
- (id)initWithFrame:(CGRect)aRect {
if (self = [super initWithFrame:aRect]) {
[self setupStateChangeHandlers];
}
return self;
}
- (void)awakeFromNib {
[self setupStateChangeHandlers];
}
- (void)dealloc {
self.normalBackgroundColor = nil;
self.highlightedBackgroundColor = nil;
self.disabledBackgroundColor = nil;
[super dealloc];
}
- (void)setBackgroundColor:(UIColor*)aColor forState:(UIControlState)aState {
switch (aState) {
case UIControlStateNormal:
self.normalBackgroundColor = aColor;
if (self.enabled) self.layer.backgroundColor = self.normalBackgroundColor.CGColor;
break;
case UIControlStateHighlighted:
self.highlightedBackgroundColor = aColor;
break;
case UIControlStateDisabled:
self.disabledBackgroundColor = aColor;
if (!self.enabled) self.layer.backgroundColor = self.disabledBackgroundColor.CGColor;
break;
default:
break;
}
}
- (void)setEnabled:(BOOL)yesOrNo {
[super setEnabled:yesOrNo];
self.layer.backgroundColor = yesOrNo? self.normalBackgroundColor.CGColor: self.disabledBackgroundColor.CGColor;
}
#pragma mark Events
- (void)buttonUp:(id)aButton event:(id)event {
self.layer.backgroundColor = self.normalBackgroundColor.CGColor;
}
- (void)buttonDown:(id)aButton event:(id)event {
self.layer.backgroundColor = self.highlightedBackgroundColor.CGColor;
}
@end
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