711/BuguLive/Class/NewMicroVideo/UGCEditor/TCCircleProgressView.m

//
//  TCCircleProgressView.m
//  TXXiaoShiPinDemo
//
//  Created by linkzhzhu on 2017/12/12.
//  Copyright © 2017年 tencent. All rights reserved.
//



#import "TCCircleProgressView.h"

@implementation TCCircleProgressView

- (id)initWithFrame:(CGRect)frame{
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor = [UIColor clearColor];
        _percent = 0;
        _width = 0;
    }
    return self;
}



- (void)setPercent:(float)percent{
    _percent = percent;
    [self setNeedsDisplay];
}



- (void)drawRect:(CGRect)rect{
    [self addArcBackColor];
    [self drawArc];
    [self addCenterBack];
    [self addCenterLabel];
}



- (void)addArcBackColor{
    
    CGColorRef color = (_arcBackColor == nil) ? [UIColor lightGrayColor].CGColor : _arcBackColor.CGColor;
    CGContextRef contextRef = UIGraphicsGetCurrentContext();
    CGSize viewSize = self.bounds.size;
    CGPoint center = CGPointMake(viewSize.width / 2, viewSize.height / 2);

    CGFloat radius = viewSize.width / 2;
    CGContextBeginPath(contextRef);
    CGContextMoveToPoint(contextRef, center.x, center.y);
    CGContextAddArc(contextRef, center.x, center.y, radius,0,2*M_PI, 0);
    CGContextSetFillColorWithColor(contextRef, color);
    CGContextFillPath(contextRef);
}



- (void)drawArc{
    if (_percent == 0 || _percent > 1) {
        return;
    }
    if (_percent == 1) {
        CGColorRef color = (_arcFinishColor == nil) ? [UIColor greenColor].CGColor : _arcFinishColor.CGColor;
        CGContextRef contextRef = UIGraphicsGetCurrentContext();
        CGSize viewSize = self.bounds.size;
        CGPoint center = CGPointMake(viewSize.width / 2, viewSize.height / 2);
        
        // Draw the slices.
        CGFloat radius = viewSize.width / 2;
        CGContextBeginPath(contextRef);
        CGContextMoveToPoint(contextRef, center.x, center.y);
        CGContextAddArc(contextRef, center.x, center.y, radius,0,2*M_PI, 0);
        CGContextSetFillColorWithColor(contextRef, color);
        CGContextFillPath(contextRef);
    }
    else{
        float endAngle = 2*M_PI*_percent;
        CGColorRef color = (_arcUnfinishColor == nil) ? [UIColor blueColor].CGColor : _arcUnfinishColor.CGColor;
        CGContextRef contextRef = UIGraphicsGetCurrentContext();
        CGSize viewSize = self.bounds.size;
        CGPoint center = CGPointMake(viewSize.width / 2, viewSize.height / 2);
        
        // Draw the slices.
        CGFloat radius = viewSize.width / 2;
        CGContextBeginPath(contextRef);
        CGContextMoveToPoint(contextRef, center.x, center.y);
        CGContextAddArc(contextRef, center.x, center.y, radius,0,endAngle, 0);
        CGContextSetFillColorWithColor(contextRef, color);
        CGContextFillPath(contextRef);
    }
}



-(void)addCenterBack{
    
    float width = (_width == 0) ? 5 : _width;
    CGColorRef color = (_centerColor == nil) ? [UIColor whiteColor].CGColor : _centerColor.CGColor;
    
    CGContextRef contextRef = UIGraphicsGetCurrentContext();
    CGSize viewSize = self.bounds.size;
    CGPoint center = CGPointMake(viewSize.width / 2, viewSize.height / 2);
    
    // Draw the slices.
    CGFloat radius = viewSize.width / 2 - width;
    CGContextBeginPath(contextRef);
    CGContextMoveToPoint(contextRef, center.x, center.y);
    CGContextAddArc(contextRef, center.x, center.y, radius,0,2*M_PI, 0);
    CGContextSetFillColorWithColor(contextRef, color);
    CGContextFillPath(contextRef);
}



- (void)addCenterLabel{
    
    NSString *percent = @"";

    float fontSize = 14;
    UIColor *arcColor = [UIColor blueColor];
    if (_percent == 1) {
        percent = @"100";
        fontSize = 14;
        arcColor = (_arcFinishColor == nil) ? [UIColor greenColor] : _arcFinishColor;
    }else if(_percent < 1 && _percent >= 0){
        fontSize = 13;
        arcColor = (_arcUnfinishColor == nil) ? [UIColor blueColor] : _arcUnfinishColor;
        percent = [NSString stringWithFormat:@"%d",(int)(_percent*100)];
    }
 
    CGSize viewSize = self.bounds.size;
    NSMutableParagraphStyle *paragraph = [[NSMutableParagraphStyle alloc] init];
    paragraph.alignment = NSTextAlignmentCenter;
    NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:[UIFont boldSystemFontOfSize:fontSize],NSFontAttributeName,arcColor,NSForegroundColorAttributeName,[UIColor clearColor],NSBackgroundColorAttributeName,paragraph,NSParagraphStyleAttributeName,nil];
    [percent drawInRect:CGRectMake(5, (viewSize.height-fontSize)/2, viewSize.width-10, fontSize)withAttributes:attributes];
    
}



@end