forked from atomton/ATMHud
/
ATMProgressLayer.m
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/
ATMProgressLayer.m
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/*
* ATMHudProgressLayer.m
* ATMHud
*
* Created by Marcel Müller on 2011-03-01.
* Copyright (c) 2010-2011, Marcel Müller (atomcraft)
* Copyright (c) 2012-2014, David Hoerl
* All rights reserved.
*
* https://github.com/atomton/ATMHud (original)
*/
#import <UIKit/UIKit.h>
#import "ATMProgressLayer.h"
#define PROGRESS_HEIGHT_BAR 10
#define PROGRESS_WIDTH_BAR 210
#define PROGRESS_DIMENSION_CIRCLE 40
@implementation ATMProgressLayer
- (CGSize)progressSize
{
if(_progressStyle == ATMHudProgressStyleBar) {
return CGSizeMake(PROGRESS_WIDTH_BAR, PROGRESS_HEIGHT_BAR);
} else {
return CGSizeMake(PROGRESS_DIMENSION_CIRCLE, PROGRESS_DIMENSION_CIRCLE);
}
}
- (void)setTheProgress:(CGFloat)p
{
_theProgress = p;
[self setNeedsDisplay];
}
- (void)drawInContext:(CGContextRef)ctx
{
UIGraphicsPushContext(ctx);
if (_theProgress > 0) {
if(_progressStyle == ATMHudProgressStyleBar) {
[self drawBar:ctx];
} else {
[self drawCircle:ctx];
}
}
UIGraphicsPopContext();
}
- (void)drawBar:(CGContextRef)ctx
{
CGRect rrect = CGRectInset(self.bounds, _progressBorderWidth, _progressBorderWidth);
CGFloat radius = _progressBorderRadius;
CGFloat minx = CGRectGetMinX(rrect), midx = CGRectGetMidX(rrect), maxx = CGRectGetMaxX(rrect);
CGFloat miny = CGRectGetMinY(rrect), midy = CGRectGetMidY(rrect), maxy = CGRectGetMaxY(rrect);
CGContextMoveToPoint(ctx, minx, midy);
CGContextAddArcToPoint(ctx, minx, miny, midx, miny, radius);
CGContextAddArcToPoint(ctx, maxx, miny, maxx, midy, radius);
CGContextAddArcToPoint(ctx, maxx, maxy, midx, maxy, radius);
CGContextAddArcToPoint(ctx, minx, maxy, minx, midy, radius);
CGContextClosePath(ctx);
CGContextSetRGBStrokeColor(ctx,0, 0, 0, 1);
CGContextSetLineWidth(ctx, _progressBorderWidth);
CGContextDrawPath(ctx, kCGPathStroke);
radius = _progressRadius;
rrect = CGRectInset(rrect, _progressInset, _progressInset);
rrect.size.width = rrect.size.width * _theProgress;
minx = CGRectGetMinX(rrect), midx = CGRectGetMidX(rrect), maxx = CGRectGetMaxX(rrect);
miny = CGRectGetMinY(rrect), midy = CGRectGetMidY(rrect), maxy = CGRectGetMaxY(rrect);
CGContextMoveToPoint(ctx, minx, midy);
CGContextAddArcToPoint(ctx, minx, miny, midx, miny, radius);
CGContextAddArcToPoint(ctx, maxx, miny, maxx, midy, radius);
CGContextAddArcToPoint(ctx, maxx, maxy, midx, maxy, radius);
CGContextAddArcToPoint(ctx, minx, maxy, minx, midy, radius);
CGContextClosePath(ctx);
CGContextSetRGBFillColor(ctx,0, 0, 0, 1);
CGContextDrawPath(ctx, kCGPathFill);
}
- (void)drawCircle:(CGContextRef)ctx
{
CGRect rrect = CGRectInset(self.bounds, _progressBorderWidth, _progressBorderWidth);
CGFloat radius = PROGRESS_DIMENSION_CIRCLE/2 - _progressBorderRadius;
CGFloat midx = CGRectGetMidX(rrect);
CGFloat midy = CGRectGetMidY(rrect);
CGContextAddArc(ctx, midx, midy, radius, 0, 2.0*M_PI, 1);
CGContextClosePath(ctx);
CGContextSetRGBStrokeColor(ctx,0, 0, 0, 1);
CGContextSetLineWidth(ctx, _progressBorderWidth);
CGContextDrawPath(ctx, kCGPathStroke);
CGFloat progressWidth = _progressBorderWidth * 4;
radius -= progressWidth/2;
CGFloat radians = (2*M_PI*_theProgress);
CGContextAddArc(ctx, midx, midy, radius, -2.0*M_PI/4.0, -2.0*M_PI/4.0 + radians, 0);
CGContextSetRGBStrokeColor(ctx,0, 0, 0, 1);
CGContextSetLineWidth(ctx, progressWidth);
CGContextDrawPath(ctx, kCGPathStroke);
}
@end