//
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// M13ProgressViewMetroDotShape.m
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// M13ProgressSuite
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//
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// Created by Brandon McQuilkin on 3/9/14.
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// Copyright (c) 2014 Brandon McQuilkin. All rights reserved.
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//
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#import "M13ProgressViewMetroDotPolygon.h"
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@implementation M13ProgressViewMetroDotPolygon
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{
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CAShapeLayer *shapeLayer;
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M13ProgressViewAction currentAction;
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}
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- (void)setNumberOfSides:(NSUInteger)numberOfSides
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{
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_numberOfSides = numberOfSides;
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[self setNeedsDisplay];
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}
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- (void)setRadius:(CGFloat)radius
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{
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_radius = radius;
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[self setNeedsDisplay];
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}
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- (NSArray *)verticies
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{
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if (_numberOfSides < 3) {
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return nil;
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} else {
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NSMutableArray *pointsArray = [NSMutableArray array];
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for (int i = 0; i < _numberOfSides; i++) {
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CGPoint point = CGPointMake(_radius * cosf((2.0f * (float)M_PI * (float)i) / (float)_numberOfSides), (float)_radius * sinf((2.0f * (float)M_PI * (float)i) / (float)_numberOfSides));
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NSValue *value = [NSValue valueWithCGPoint:point];
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[pointsArray addObject:value];
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}
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return pointsArray;
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}
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}
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- (void)drawInContext:(CGContextRef)ctx
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{
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//Create and add the polygon layer if it does not exist
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if (shapeLayer == nil) {
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shapeLayer = [CAShapeLayer layer];
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[self addSublayer:shapeLayer];
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}
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//Create the path for the polygon
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UIBezierPath *path = [UIBezierPath bezierPath];
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NSArray *verticies = [self verticies];
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if (verticies == nil) {
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//Draw circle
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path = [UIBezierPath bezierPathWithOvalInRect:CGRectMake(0, 0, _radius * 2, _radius * 2)];
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} else {
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[path moveToPoint:((NSValue *)verticies[0]).CGPointValue];
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for (int i = 1; i < verticies.count; i++) {
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[path addLineToPoint:((NSValue *)verticies[i]).CGPointValue];
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}
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[path closePath];
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}
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//Set the shape layer's path
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shapeLayer.path = path.CGPath;
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//Set the color of the polygon
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shapeLayer.fillColor = self.secondaryColor.CGColor;
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if (self.highlighted) {
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shapeLayer.fillColor = self.primaryColor.CGColor;
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}
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if (currentAction == M13ProgressViewActionSuccess) {
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shapeLayer.fillColor = self.successColor.CGColor;
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} else if (currentAction == M13ProgressViewActionFailure) {
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shapeLayer.fillColor = self.failureColor.CGColor;
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}
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//Draw
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[super drawInContext:ctx];
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}
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- (void)performAction:(M13ProgressViewAction)action animated:(BOOL)animated
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{
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currentAction = action;
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[self setNeedsDisplay];
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}
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- (id)copy
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{
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M13ProgressViewMetroDotPolygon *dot = [[M13ProgressViewMetroDotPolygon alloc] init];
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dot.primaryColor = self.primaryColor;
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dot.secondaryColor = self.secondaryColor;
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dot.successColor = self.successColor;
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dot.failureColor = self.failureColor;
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dot.numberOfSides = _numberOfSides;
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dot.radius = _radius;
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return dot;
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}
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@end
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