George MacKerron jawj

Academic economist and full-stack developer

jawj / CAMediaTimingFunction+GMTimingBlock.h

Last active January 22, 2017 03:42

An easing category on CAMediaTimingFunction, with thanks to Mozilla

	//
	// CAMediaTimingFunction+GMTimingBlock.h
	//
	// Created by George MacKerron on 2015/06/11.
	// Copyright (c) 2015 George MacKerron. All rights reserved.
	//

	#import <QuartzCore/QuartzCore.h>

jawj / crc.coffee

Last active August 29, 2015 14:13

String CRC in CoffeeScript

	# tested against OS X cksum: `echo -n 'hello' \| cksum -o 3` == "hello".crc32()

	String.CRC32Table = # ref: http://www.w3.org/TR/PNG/#D-CRCAppendix
	for c in [0..255] # (can clobber c with impunity below thanks to CoffeeScript)
	for k in [0..7]
	c = if c & 1 then 0xedb88320 ^ (c >>> 1) else (c >>> 1)
	c >>> 0

	String::crc32 = (crc = 0xffffffff) ->
	for i in [0...@length] by 1

jawj / AlignmentRectRespectingSlider.h

Last active August 29, 2015 14:06

A UISlider subclass for iOS7 that respects alignmentRectInsets on custom thumb images

	@interface AlignmentRectRespectingSlider : UISlider
	@end