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			262 lines
		
	
	
		
			5.4 KiB
		
	
	
	
		
			HTML
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			262 lines
		
	
	
		
			5.4 KiB
		
	
	
	
		
			HTML
		
	
	
		
			Executable File
		
	
	
	
	
| <html>
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| <style>
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| 
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| button,
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| details {
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| 	border: solid 1px gray;
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| 	border-radius: 4px;
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| 	margin: 1px;
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| 	background: white;
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| }
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| details {
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| 	width: 500px;
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| }
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| details > div {
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| 	margin: 10px;
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| }
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| summary {
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| 	padding-left: 3px;
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| 	background: #ddd;
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| }
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| input[type=range] {
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| 	width: 300px;
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| }
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| /* XXX this is not live...
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| input[type=range]:after {
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| 	content: attr(value);
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| 	color: black;
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| }
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| */
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| div > span:first-child {
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| 	display: inline-block;
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| 	width: 100px;
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| }
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| 
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| /* range syling... */
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| input[type='range'] {
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| 	-webkit-appearance: none !important;
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| 	background: silver;
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| 	height: 4px;
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| 	border: solid 1px gray;
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| 	border-radius: 2px;
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| }
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| input[type='range']::-webkit-slider-thumb {
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| 	-webkit-appearance: none !important;
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| 	background: white;
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| 	height: 15px;
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| 	width: 15px;
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| 	border: solid 1px gray;
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| 	border-radius: 50%;
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| }
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| 
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| .value {
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| 	-webkit-appearance: none !important;
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| 	display: inline-block;
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| 	width: 40px;
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| 	text-align: right;
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| 	margin-left: 5px;
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| 	margin-right: 5px;
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| 	background: white;
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| 	border: none;
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| 	border-radius: 2px;
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| }
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| input::-webkit-outer-spin-button,
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| input::-webkit-inner-spin-button {
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| 	-webkit-appearance: none !important;
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| 	/*
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| 	display: inline-block;
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| 	background: white;
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| 	border-radius: 2px;
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| 	border: solid 1px gray;
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| 	width: 10px;
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| 	*/
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| }
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| 
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| 
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| 
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| 
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| </style>
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| <script src="jquery.js"></script>
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| <script>
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| 
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| function updateFilter(e, f, v){
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| 	e = $(e)
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| 	var state = e
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| 		.css('-webkit-filter')
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| 	state = state == 'none' ? '' : state + ' '
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| 	//state = state.replace(RegExp(f+'\\s*\\([^\\)]*\\)'), '')
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| 	//state += f+'('+v+')'
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| 	if(RegExp(f).test(state)){
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| 		state = state.replace(RegExp(f+'\\s*\\([^\\)]*\\)'), f+'('+v+')')
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| 	} else {
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| 		state += f+'('+v+')'
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| 	}
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| 
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| 	e.css({
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| 		'-webkit-filter': state,
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| 		'filter': state
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| 	})
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| 	return v
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| }
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| function resetFilter(e, f){
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| 	e = $(e)
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| 	var state = e
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| 		.css('-webkit-filter')
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| 	state = state == 'none' ? '' : state + ' '
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| 	state = state.replace(RegExp(f+'\\s*\\([^\\)]*\\)'), '').trim()
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| 	e.css({
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| 		'-webkit-filter': state,
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| 		'filter': state
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| 	})
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| 	return e
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| }
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| 
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| function resetPrevRange(e){
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| 	e = $(e).prev('input[type=range]')
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| 	e.val(e.attr('default'))
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| 		.change()
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| }
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| 
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| // XXX this does not set hue correctly...
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| function loadSliderState(){
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| 	var state = $('#image')
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| 		.css('-webkit-filter')
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| 		.split(/\s*\(\s*|\s*\)\s*/g)
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| 		.reverse()
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| 		.slice(1)
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| 	// reset sliders do defaults...
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| 	$('input[type=range]').each(function(i, e){
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| 		e = $(e)
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| 		e.val(e.attr('default'))
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| 	})
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| 	// set the saved values...
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| 	while(state.length > 0){
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| 		var e = $('#'+state.pop())
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| 		if(e.prop('normalize')){
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| 			e.val(v2r(parseFloat(state.pop())))
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| 		} else {
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| 			e.val(parseFloat(state.pop()))
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| 		}
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| 	}
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| }
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| 
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| 
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| function saveState(){
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| 	var l = $('.state').length
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| 	var state = $('#image').css('-webkit-filter')
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| 	$('<button></button>')
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| 		.text(l)
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| 		.addClass('state '+l)
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| 		.attr('state', state)
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| 		.click(function(){
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| 			$('#image').css('-webkit-filter', state)
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| 			loadSliderState()
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| 		})
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| 		.appendTo($('.states'))
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| }
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| function clearStates(){
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| 	$('.state').remove()
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| }
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| 
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| function makeAbsRange(text, filter, target, min, max, dfl, step, tran, normalize){
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| 	tran = tran == null ? function(v){return v} : tran
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| 	normalize = normalize == null ? false : true
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| 	var elem = $('<div class="range"></div>')
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| 	$('<span class="title"/>')
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| 		.html(text)
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| 		.appendTo(elem)
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| 	var range = $('<input type="range">')
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| 		.attr({
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| 			id: filter,
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| 			min: min,
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| 			max: max,
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| 			step: step,
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| 			default: dfl,
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| 		})
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| 		.prop('normalize', normalize)
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| 		.val(dfl)
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| 		.change(function(){
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| 			var val = this.valueAsNumber
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| 			value.val(val)
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| 			updateFilter(target, this.id, tran(val))
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| 		})
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| 		.appendTo(elem)
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| 	var value = $('<input type="number" class="value"/>')
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| 		.attr({
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| 			min: min,
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| 			max: max,
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| 			step: step,
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| 		})
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| 		.val(dfl)
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| 		.change(function(){
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| 			range.val($(this).val())
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| 		})
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| 		.appendTo(elem)
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| 	$('<button class="reset">x</button>')
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| 		.click(function(){
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| 			range.val(dfl).change()
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| 			resetFilter(target, filter)
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| 		})
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| 		.appendTo(elem)
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| 	return elem
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| }
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| function makeLogRange(text, filter, target){
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| 	return makeAbsRange(text, filter, target, -100, 100, 0, 0.1, r2v, true)
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| }
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| 
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| var C = 43.47
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| 
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| function r2v(r){
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| 	return Math.pow(Math.E, r/C)
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| }
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| 
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| function v2r(v){
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| 	return Math.log(v)*C
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| }
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| 
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| $(function(){
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| 	$('.controls')
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| 		.append(makeLogRange('Brightness:', 'brightness', '#image'))
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| 		.append(makeLogRange('Contrast:', 'contrast', '#image'))
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| 		.append(makeLogRange('Saturation:', 'saturate', '#image'))
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| 		.append(makeAbsRange('Hue:', 'hue-rotate', '#image', -180, 180, 0, 0.5, function(v){ return v+'deg' }))
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| 		.append($('<hr>'))
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| 		.append(makeAbsRange('Grayscale:', 'grayscale', '#image', 0, 1, 0, 0.01))
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| 		.append($('<hr>'))
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| 		.append(makeAbsRange('Invert:', 'invert', '#image', 0, 1, 0, 0.01))
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| 		.append(makeAbsRange('Sepia:', 'sepia', '#image', 0, 1, 0, 0.01))
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| 		.append($('<hr>'))
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| 
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| 		.append($('<button onclick="$(\'.reset\').click()">Reset all</button>'))
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| 		.append($('<hr>'))
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| 
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| 		.append($('<div>NOTE: at this point order of operations is '+
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| 			'sometimes segnificant -- might be good to treat the filters '+
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| 			'as layers -- se Adobe CSS filter factory </div>'))
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| 
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| 		saveState()
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| })
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| 
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| </script>
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| <body>
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| 	<img id="image" src="image.jpg">
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| 
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| 	<details open>
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| 		<summary>Controls</summary>
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| 		<div class="controls">
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| 		</div>
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| 	</details>
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| 
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| 	<details open>
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| 		<summary>Snapshots</summary>
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| 		<div>
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| 			<div class="states">
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| 			</div>
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| 			<button onclick="saveState()">Save</button>
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| 			<button onclick="clearStates()">Clear</button>
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| 		</div>
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| 	</details>
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| 
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| </body>
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| </html>
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