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//
// CustomSegmentedControl.m
// CustomSegmentedControls
//
// Created by Peter Boctor on 12/10/10.
//
// Copyright (c) 2011 Peter Boctor
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE
//
#import "CustomSegmentedControl.h"
@implementation CustomSegmentedControl
@synthesize buttons;
- (id) initWithSegmentCount:(NSUInteger)segmentCount segmentsize:(CGSize)segmentsize dividerImage:(UIImage*)dividerImage tag:(NSInteger)objectTag delegate:(NSObject <CustomSegmentedControlDelegate>*)customSegmentedControlDelegate
{
if (self = [super init])
{
// The tag allows callers withe multiple controls to distinguish between them
self.tag = objectTag;
// Set the delegate
delegate = customSegmentedControlDelegate;
// Adjust our width based on the number of segments & the width of each segment and the sepearator
self.frame = CGRectMake(0, 0, (segmentsize.width * segmentCount) + (dividerImage.size.width * (segmentCount - 1)), segmentsize.height);
// Initalize the array we use to store our buttons
self.buttons = [[NSMutableArray alloc] initWithCapacity:segmentCount];
// horizontalOffset tracks the proper x value as we add buttons as subviews
CGFloat horizontalOffset = 0;
// Iterate through each segment
for (NSUInteger i = 0 ; i < segmentCount ; i++)
{
// Ask the delegate to create a button
UIButton* button = [delegate buttonFor:self atIndex:i];
// Register for touch events
[button addTarget:self action:@selector(touchDownAction:) forControlEvents:UIControlEventTouchDown];
[button addTarget:self action:@selector(touchUpInsideAction:) forControlEvents:UIControlEventTouchUpInside];
[button addTarget:self action:@selector(otherTouchesAction:) forControlEvents:UIControlEventTouchUpOutside];
[button addTarget:self action:@selector(otherTouchesAction:) forControlEvents:UIControlEventTouchDragOutside];
[button addTarget:self action:@selector(otherTouchesAction:) forControlEvents:UIControlEventTouchDragInside];
// Add the button to our buttons array
[buttons addObject:button];
// Set the button's x offset
button.frame = CGRectMake(horizontalOffset, 0.0, button.frame.size.width, button.frame.size.height);
// Add the button as our subview
[self addSubview:button];
// Add the divider unless we are at the last segment
if (i != segmentCount - 1)
{
UIImageView* divider = [[[UIImageView alloc] initWithImage:dividerImage] autorelease];
divider.frame = CGRectMake(horizontalOffset + segmentsize.width, 0.0, dividerImage.size.width, dividerImage.size.height);
[self addSubview:divider];
}
// Advance the horizontal offset
horizontalOffset = horizontalOffset + segmentsize.width + dividerImage.size.width;
}
}
return self;
}
-(void) dimAllButtonsExcept:(UIButton*)selectedButton
{
for (UIButton* button in buttons)
{
if (button == selectedButton)
{
button.selected = YES;
button.highlighted = button.selected ? NO : YES;
}
else
{
button.selected = NO;
button.highlighted = NO;
}
}
}
- (void)touchDownAction:(UIButton*)button
{
[self dimAllButtonsExcept:button];
if ([delegate respondsToSelector:@selector(touchDownAtSegmentIndex:)])
[delegate touchDownAtSegmentIndex:[buttons indexOfObject:button]];
}
- (void)touchUpInsideAction:(UIButton*)button
{
[self dimAllButtonsExcept:button];
if ([delegate respondsToSelector:@selector(touchUpInsideSegmentIndex:)])
[delegate touchUpInsideSegmentIndex:[buttons indexOfObject:button]];
}
- (void)otherTouchesAction:(UIButton*)button
{
[self dimAllButtonsExcept:button];
}
- (void)dealloc
{
[super dealloc];
[buttons release];
}
@end