//

// CETimeView.m

// TextKitNotepad

//

// Created by Colin Eberhardt on 20/06/2013.

// Copyright (c) 2013 Colin Eberhardt. All rights reserved.

//

#import "TimeIndicatorView.h"

@implementation TimeIndicatorView

{

UILabel* _label;

}

-(id)init:(NSDate *)date {

if (self = [super init]) {

// Initialization code

self.backgroundColor = [UIColor clearColor];

self.clipsToBounds = NO;

_label = [[UILabel alloc] init];

_label.textAlignment = NSTextAlignmentRight;

// format and style the date

NSDateFormatter* format = [NSDateFormatter new];

[format setDateFormat:@"dd\rMMMM\ryyyy"];

NSString* formattedDate = [format stringFromDate:date];

_label.text = [formattedDate uppercaseString];

_label.textAlignment = NSTextAlignmentCenter;

_label.textColor = [UIColor whiteColor];

_label.numberOfLines = 0;

[self addSubview:_label];

}

return self;

}

- (void)updateSize {

// size the label based on the font

_label.font = [UIFont preferredFontForTextStyle:UIFontTextStyleHeadline];

_label.frame = CGRectMake(0, 0, FLT_MAX, FLT_MAX);

[_label sizeToFit];

// set the frame to be large enough to accomodate circle that surrounds the text

float radius = [self radiusToSurroundFrame:_label.frame];

self.frame = CGRectMake(0, 0, radius*2, radius*2);

// center the label within this circle

_label.center = self.center;

// offset the center of this view to ... erm ... can I just draw you a picture?

// You know the story - the designer provides a mock-up with some static data, leaving

// you to work out the complex calculatins required to accomodate the variability of real-world

// data. C'est la vie!

float padding = 5.0f;

self.center = CGPointMake(self.center.x + _label.frame.origin.x - padding,

self.center.y - _label.frame.origin.y + padding);

}

// calculates the radius of the circle that surrounds the label

- (float) radiusToSurroundFrame:(CGRect)frame {

return MAX(frame.size.width, frame.size.height) * 0.5 + 20.0f;

}

- (UIBezierPath *)curvePathWithOrigin:(CGPoint)origin {

return [UIBezierPath bezierPathWithArcCenter:origin

radius:[self radiusToSurroundFrame:_label.frame]

startAngle:-180.0f

endAngle:180.0f

clockwise:YES];

}

- (void)drawRect:(CGRect)rect

{

CGContextRef ctx = UIGraphicsGetCurrentContext();

CGContextSetShouldAntialias(ctx, YES);

UIBezierPath* path = [self curvePathWithOrigin:_label.center];

[[UIColor colorWithRed:0.329f green:0.584f blue:0.898f alpha:1.0f] setFill];

[path fill];

}

@end