jianbinglian/Jianbinglian/Lib(第三方库)/DYCodeScanner(二维码)/UIButton+Corner.m

//
//  UIButton+Corner.m
//
//  Created by dyf on 2018/01/28.
//  Copyright © 2018 dyf. All rights reserved.
//
// 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 "UIButton+Corner.h"

const VVBorder VVBorderNull = {0, nil};

@implementation UIButton (Corner)

- (ClipCornerBlock)clipCorner {
    ClipCornerBlock block = ^(UIRectCorner rc, UIColor *color, CGFloat radius, VVBorder border) {
        CGRect mRect       = self.bounds;
        CGSize mSize       = mRect.size;
        CGSize radii       = CGSizeMake(radius, radius);
        
        UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:mRect byRoundingCorners:rc cornerRadii:radii];
        UIImage *mImage    = nil;
        if (@available(iOS 10.0, *)) {
            UIGraphicsImageRenderer *render = [[UIGraphicsImageRenderer alloc] initWithSize:mSize];
            
            mImage = [render imageWithActions:^(UIGraphicsImageRendererContext * _Nonnull rendererContext) {
                UIGraphicsImageRendererContext  *ctx = rendererContext;
                
                CGContextSetFillColorWithColor  (ctx.CGContext, color.CGColor);
                CGContextSetStrokeColorWithColor(ctx.CGContext, border.color.CGColor);
                CGContextSetLineWidth           (ctx.CGContext, border.width);
                
                [path addClip];
                
                CGContextAddPath (ctx.CGContext, path.CGPath);
                CGContextDrawPath(ctx.CGContext, kCGPathFillStroke);
            }];
        } else {
            UIGraphicsBeginImageContext(mSize);
            
            CGContextRef context = UIGraphicsGetCurrentContext();
            
            CGContextSetFillColorWithColor  (context, color.CGColor);
            CGContextSetStrokeColorWithColor(context, border.color.CGColor);
            CGContextSetLineWidth           (context, border.width);
            
            [path addClip];
            
            CGContextAddPath (context, path.CGPath);
            CGContextDrawPath(context, kCGPathFillStroke);
            
            mImage = UIGraphicsGetImageFromCurrentImageContext();
            
            UIGraphicsEndImageContext();
        }
        
        [self setBackgroundImage:mImage forState:UIControlStateNormal];
        [self setBackgroundImage:mImage forState:UIControlStateHighlighted];
    };
    
    return block;
}

@end