//
//  AvatarImageView.m
//  FirstLink
//
//  Created by ascii on 15/7/27.
//  Copyright (c) 2015年 FirstLink. All rights reserved.
//

#import "AvatarImageView.h"

@interface AvatarImageView ()

@property (nonatomic, strong) CAShapeLayer *backgroundLayer;

@property (nonatomic, assign) CGRect frame;
@property (nonatomic, assign) CGFloat boardWidth;
@property (nonatomic, strong) UIColor *boardColor;

@end

#define rad(degrees) ((degrees) / (180.0 / M_PI))

@implementation AvatarImageView

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

- (instancetype)initWithFrame:(CGRect)frame
                   boardWidth:(CGFloat)boardWidth
                   boardColor:(UIColor *)boardColor {
    self = [super initWithFrame:frame];
    if (self) {
        self.layer.cornerRadius     = CGRectGetWidth(frame)/2.f;
        self.layer.masksToBounds    = NO;
        self.clipsToBounds          = YES;
        
        _boardWidth = boardWidth;
        _boardColor = boardColor;
        
        CGPoint arcCenter = CGPointMake(CGRectGetMidX(self.bounds), CGRectGetMidY(self.bounds));
        CGFloat radius = MIN(CGRectGetMidX(self.bounds), CGRectGetMidY(self.bounds));
        
        UIBezierPath *circlePath = [UIBezierPath bezierPathWithArcCenter:arcCenter
                                                                  radius:radius
                                                              startAngle:-rad(90)
                                                                endAngle:rad(360-90)
                                                               clockwise:YES];
        _backgroundLayer = [CAShapeLayer layer];
        _backgroundLayer.path           = circlePath.CGPath;
        _backgroundLayer.strokeColor    = [boardColor CGColor];
        _backgroundLayer.fillColor      = [[UIColor clearColor] CGColor];
        _backgroundLayer.lineWidth      = boardWidth;
        
        _avatarView = [[UIImageView alloc] initWithFrame:CGRectMake(boardWidth-1,
                                                                    boardWidth-1,
                                                                    frame.size.width-2*boardWidth + 2,
                                                                    frame.size.height-2*boardWidth + 2)];
        _avatarView.layer.cornerRadius = CGRectGetWidth(self.bounds)/2.f  - boardWidth + 1;
        _avatarView.layer.borderWidth = 0;
        _avatarView.contentMode = UIViewContentModeScaleAspectFill;
        _avatarView.layer.masksToBounds = NO;
        _avatarView.clipsToBounds = YES;
        
        [self.layer addSublayer:_backgroundLayer];
        [self addSubview:_avatarView];
    }
    return self;
}



@end