/
CharlieViewController.m
86 lines (68 loc) · 3.04 KB
/
CharlieViewController.m
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//
// MIT License
//
// Copyright (c) 2012 Bob McCune http://bobmccune.com/
//
// 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 "CharlieViewController.h"
static const CGFloat offset = 10.0;
static const CGFloat curve = 5.0;
@implementation CharlieViewController
+ (NSString *)displayName {
return @"Winning";
}
// This method taken verbatim from Joe Ricciopo's Shadow Demo:
// https://github.com/joericioppo/ShadowDemo
- (UIBezierPath*)bezierPathWithCurvedShadowForRect:(CGRect)rect {
UIBezierPath *path = [UIBezierPath bezierPath];
CGPoint topLeft = rect.origin;
CGPoint bottomLeft = CGPointMake(0.0, CGRectGetHeight(rect) + offset);
CGPoint bottomMiddle = CGPointMake(CGRectGetWidth(rect)/2, CGRectGetHeight(rect) - curve);
CGPoint bottomRight = CGPointMake(CGRectGetWidth(rect), CGRectGetHeight(rect) + offset);
CGPoint topRight = CGPointMake(CGRectGetWidth(rect), 0.0);
[path moveToPoint:topLeft];
[path addLineToPoint:bottomLeft];
[path addQuadCurveToPoint:bottomRight controlPoint:bottomMiddle];
[path addLineToPoint:topRight];
[path addLineToPoint:topLeft];
[path closePath];
return path;
}
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
self.title = [[self class] displayName];
UIImage *charlieImage = [UIImage imageNamed:@"charlie.png"];
CALayer *layer = [CALayer layer];
layer = [CALayer layer];
layer.bounds = CGRectMake(0, 0, charlieImage.size.width, charlieImage.size.height);
layer.position = CGPointMake(160, 200);
layer.contents = (id)charlieImage.CGImage;
layer.shadowOffset = CGSizeMake(0, 2);
layer.shadowOpacity = 0.70;
[self.view.layer addSublayer:layer];
UIGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(togglePath)];
[self.view addGestureRecognizer:tapRecognizer];
}
- (void)togglePath {
CALayer *layer = [[self.view.layer sublayers] objectAtIndex:0];
layer.shadowPath = (layer.shadowPath) ? nil : [self bezierPathWithCurvedShadowForRect:layer.bounds].CGPath;
}
@end