121 lines
3.0 KiB
Objective-C
121 lines
3.0 KiB
Objective-C
//
|
|
// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
|
|
//
|
|
|
|
#import "OWSProgressView.h"
|
|
|
|
@interface OWSProgressView ()
|
|
|
|
@property (nonatomic) CAShapeLayer *borderLayer;
|
|
@property (nonatomic) CAShapeLayer *progressLayer;
|
|
|
|
@end
|
|
|
|
#pragma mark -
|
|
|
|
@implementation OWSProgressView
|
|
|
|
- (id)init
|
|
{
|
|
self = [super init];
|
|
if (self) {
|
|
[self initCommon];
|
|
}
|
|
|
|
return self;
|
|
}
|
|
|
|
- (id)initWithFrame:(CGRect)frame
|
|
{
|
|
self = [super initWithFrame:frame];
|
|
if (self) {
|
|
[self initCommon];
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (void)initCommon
|
|
{
|
|
self.opaque = NO;
|
|
self.userInteractionEnabled = NO;
|
|
self.backgroundColor = [UIColor clearColor];
|
|
self.color = [UIColor whiteColor];
|
|
|
|
self.borderLayer = [CAShapeLayer new];
|
|
self.borderLayer.fillColor = self.color.CGColor;
|
|
[self.layer addSublayer:self.borderLayer];
|
|
|
|
self.progressLayer = [CAShapeLayer new];
|
|
self.progressLayer.fillColor = self.color.CGColor;
|
|
[self.layer addSublayer:self.progressLayer];
|
|
|
|
[self setContentCompressionResistancePriority:UILayoutPriorityDefaultHigh forAxis:UILayoutConstraintAxisVertical];
|
|
[self setContentHuggingPriority:UILayoutPriorityDefaultHigh forAxis:UILayoutConstraintAxisVertical];
|
|
}
|
|
|
|
- (void)layoutSubviews
|
|
{
|
|
[super layoutSubviews];
|
|
[self update];
|
|
}
|
|
|
|
- (void)setProgress:(CGFloat)progress
|
|
{
|
|
if (_progress != progress) {
|
|
_progress = progress;
|
|
[self update];
|
|
}
|
|
}
|
|
|
|
- (void)setColor:(UIColor *)color
|
|
{
|
|
if (![_color isEqual:color]) {
|
|
_color = color;
|
|
[self update];
|
|
}
|
|
}
|
|
|
|
- (void)update
|
|
{
|
|
CGFloat kBorderThickness = self.bounds.size.height * 0.15f;
|
|
CGFloat kOuterRadius = self.bounds.size.height * 0.3f;
|
|
CGFloat kInnerRadius = kOuterRadius - kBorderThickness;
|
|
// We want to slightly overlap the border with the progress
|
|
// to achieve a clean effect.
|
|
CGFloat kProgressInset = kBorderThickness - 0.5f;
|
|
|
|
UIBezierPath *borderPath = [UIBezierPath new];
|
|
|
|
// Add the outer border.
|
|
[borderPath appendPath:[UIBezierPath bezierPathWithRoundedRect:self.bounds cornerRadius:kOuterRadius]];
|
|
[borderPath
|
|
appendPath:[UIBezierPath bezierPathWithRoundedRect:CGRectInset(self.bounds, kBorderThickness, kBorderThickness)
|
|
cornerRadius:kInnerRadius]];
|
|
|
|
self.borderLayer.path = borderPath.CGPath;
|
|
self.borderLayer.fillColor = self.color.CGColor;
|
|
self.borderLayer.fillRule = kCAFillRuleEvenOdd;
|
|
|
|
UIBezierPath *progressPath = [UIBezierPath new];
|
|
|
|
// Add the inner progress.
|
|
CGRect progressRect = CGRectInset(self.bounds, kProgressInset, kProgressInset);
|
|
progressRect.size.width *= MAX(0.f, MIN(1.f, self.progress));
|
|
[progressPath appendPath:[UIBezierPath bezierPathWithRect:progressRect]];
|
|
|
|
self.progressLayer.path = progressPath.CGPath;
|
|
self.progressLayer.fillColor = self.color.CGColor;
|
|
}
|
|
|
|
- (CGSize)sizeThatFits:(CGSize)size
|
|
{
|
|
return CGSizeMake(150, 16);
|
|
}
|
|
|
|
- (CGSize)intrinsicContentSize
|
|
{
|
|
return CGSizeMake(UIViewNoIntrinsicMetric, 16);
|
|
}
|
|
|
|
@end
|