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