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// VERSION: 2.2 LAST UPDATE: 13.03.2012 |
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/* |
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* Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php |
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* |
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* Made by Wilq32, wilq32@gmail.com, Wroclaw, Poland, 01.2009 |
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* Website: http://code.google.com/p/jqueryrotate/ |
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*/ |
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// Documentation removed from script file (was kinda useless and outdated) |
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(function($) { |
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var supportedCSS,styles=document.getElementsByTagName("head")[0].style,toCheck="transformProperty WebkitTransform OTransform msTransform MozTransform".split(" "); |
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for (var a=0;a<toCheck.length;a++) if (styles[toCheck[a]] !== undefined) supportedCSS = toCheck[a]; |
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// Bad eval to preven google closure to remove it from code o_O |
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// After compresion replace it back to var IE = 'v' == '\v' |
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var IE = eval('"v"=="\v"'); |
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jQuery.fn.extend({ |
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rotate:function(parameters) |
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{ |
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if (this.length===0||typeof parameters=="undefined") return; |
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if (typeof parameters=="number") parameters={angle:parameters}; |
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var returned=[]; |
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for (var i=0,i0=this.length;i<i0;i++) |
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{ |
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var element=this.get(i); |
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if (!element.Wilq32 || !element.Wilq32.PhotoEffect) { |
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var paramClone = $.extend(true, {}, parameters); |
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var newRotObject = new Wilq32.PhotoEffect(element,paramClone)._rootObj; |
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returned.push($(newRotObject)); |
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} |
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else { |
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element.Wilq32.PhotoEffect._handleRotation(parameters); |
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} |
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} |
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return returned; |
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}, |
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getRotateAngle: function(){ |
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var ret = []; |
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for (var i=0,i0=this.length;i<i0;i++) |
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{ |
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var element=this.get(i); |
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if (element.Wilq32 && element.Wilq32.PhotoEffect) { |
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ret[i] = element.Wilq32.PhotoEffect._angle; |
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} |
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} |
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return ret; |
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}, |
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stopRotate: function(){ |
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for (var i=0,i0=this.length;i<i0;i++) |
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{ |
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var element=this.get(i); |
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if (element.Wilq32 && element.Wilq32.PhotoEffect) { |
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clearTimeout(element.Wilq32.PhotoEffect._timer); |
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} |
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} |
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} |
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}); |
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// Library agnostic interface |
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Wilq32=window.Wilq32||{}; |
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Wilq32.PhotoEffect=(function(){ |
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if (supportedCSS) { |
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return function(img,parameters){ |
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img.Wilq32 = { |
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PhotoEffect: this |
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}; |
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this._img = this._rootObj = this._eventObj = img; |
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this._handleRotation(parameters); |
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} |
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} else { |
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return function(img,parameters) { |
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// Make sure that class and id are also copied - just in case you would like to refeer to an newly created object |
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this._img = img; |
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this._rootObj=document.createElement('span'); |
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this._rootObj.style.display="inline-block"; |
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this._rootObj.Wilq32 = |
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{ |
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PhotoEffect: this |
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}; |
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img.parentNode.insertBefore(this._rootObj,img); |
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if (img.complete) { |
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this._Loader(parameters); |
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} else { |
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var self=this; |
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// TODO: Remove jQuery dependency |
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jQuery(this._img).bind("load", function() |
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{ |
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self._Loader(parameters); |
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}); |
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} |
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} |
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} |
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})(); |
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Wilq32.PhotoEffect.prototype={ |
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_setupParameters : function (parameters){ |
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this._parameters = this._parameters || {}; |
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if (typeof this._angle !== "number") this._angle = 0 ; |
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if (typeof parameters.angle==="number") this._angle = parameters.angle; |
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this._parameters.animateTo = (typeof parameters.animateTo==="number") ? (parameters.animateTo) : (this._angle); |
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this._parameters.step = parameters.step || this._parameters.step || null; |
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this._parameters.easing = parameters.easing || this._parameters.easing || function (x, t, b, c, d) { return -c * ((t=t/d-1)*t*t*t - 1) + b; } |
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this._parameters.duration = parameters.duration || this._parameters.duration || 1000; |
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this._parameters.callback = parameters.callback || this._parameters.callback || function(){}; |
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if (parameters.bind && parameters.bind != this._parameters.bind) this._BindEvents(parameters.bind); |
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}, |
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_handleRotation : function(parameters){ |
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this._setupParameters(parameters); |
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if (this._angle==this._parameters.animateTo) { |
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this._rotate(this._angle); |
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} |
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else { |
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this._animateStart(); |
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} |
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}, |
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_BindEvents:function(events){ |
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if (events && this._eventObj) |
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{ |
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// Unbinding previous Events |
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if (this._parameters.bind){ |
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var oldEvents = this._parameters.bind; |
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for (var a in oldEvents) if (oldEvents.hasOwnProperty(a)) |
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// TODO: Remove jQuery dependency |
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jQuery(this._eventObj).unbind(a,oldEvents[a]); |
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} |
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this._parameters.bind = events; |
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for (var a in events) if (events.hasOwnProperty(a)) |
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// TODO: Remove jQuery dependency |
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jQuery(this._eventObj).bind(a,events[a]); |
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} |
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}, |
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_Loader:(function() |
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{ |
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if (IE) |
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return function(parameters) |
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{ |
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var width=this._img.width; |
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var height=this._img.height; |
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this._img.parentNode.removeChild(this._img); |
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this._vimage = this.createVMLNode('image'); |
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this._vimage.src=this._img.src; |
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this._vimage.style.height=height+"px"; |
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this._vimage.style.width=width+"px"; |
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this._vimage.style.position="absolute"; // FIXES IE PROBLEM - its only rendered if its on absolute position! |
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this._vimage.style.top = "0px"; |
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this._vimage.style.left = "0px"; |
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/* Group minifying a small 1px precision problem when rotating object */ |
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this._container = this.createVMLNode('group'); |
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this._container.style.width=width; |
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this._container.style.height=height; |
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this._container.style.position="absolute"; |
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this._container.setAttribute('coordsize',width-1+','+(height-1)); // This -1, -1 trying to fix ugly problem with small displacement on IE |
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this._container.appendChild(this._vimage); |
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this._rootObj.appendChild(this._container); |
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this._rootObj.style.position="relative"; // FIXES IE PROBLEM |
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this._rootObj.style.width=width+"px"; |
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this._rootObj.style.height=height+"px"; |
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this._rootObj.setAttribute('id',this._img.getAttribute('id')); |
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this._rootObj.className=this._img.className; |
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this._eventObj = this._rootObj; |
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this._handleRotation(parameters); |
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} |
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else |
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return function (parameters) |
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{ |
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this._rootObj.setAttribute('id',this._img.getAttribute('id')); |
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this._rootObj.className=this._img.className; |
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this._width=this._img.width; |
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this._height=this._img.height; |
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this._widthHalf=this._width/2; // used for optimisation |
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this._heightHalf=this._height/2;// used for optimisation |
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var _widthMax=Math.sqrt((this._height)*(this._height) + (this._width) * (this._width)); |
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this._widthAdd = _widthMax - this._width; |
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this._heightAdd = _widthMax - this._height; // widthMax because maxWidth=maxHeight |
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this._widthAddHalf=this._widthAdd/2; // used for optimisation |
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this._heightAddHalf=this._heightAdd/2;// used for optimisation |
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this._img.parentNode.removeChild(this._img); |
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this._aspectW = ((parseInt(this._img.style.width,10)) || this._width)/this._img.width; |
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this._aspectH = ((parseInt(this._img.style.height,10)) || this._height)/this._img.height; |
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this._canvas=document.createElement('canvas'); |
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this._canvas.setAttribute('width',this._width); |
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this._canvas.style.position="relative"; |
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this._canvas.style.left = -this._widthAddHalf + "px"; |
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this._canvas.style.top = -this._heightAddHalf + "px"; |
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this._canvas.Wilq32 = this._rootObj.Wilq32; |
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this._rootObj.appendChild(this._canvas); |
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this._rootObj.style.width=this._width+"px"; |
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this._rootObj.style.height=this._height+"px"; |
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this._eventObj = this._canvas; |
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this._cnv=this._canvas.getContext('2d'); |
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this._handleRotation(parameters); |
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} |
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})(), |
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_animateStart:function() |
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{ |
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if (this._timer) { |
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clearTimeout(this._timer); |
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} |
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this._animateStartTime = +new Date; |
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this._animateStartAngle = this._angle; |
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this._animate(); |
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}, |
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_animate:function() |
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{ |
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var actualTime = +new Date; |
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var checkEnd = actualTime - this._animateStartTime > this._parameters.duration; |
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// TODO: Bug for animatedGif for static rotation ? (to test) |
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if (checkEnd && !this._parameters.animatedGif) |
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{ |
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clearTimeout(this._timer); |
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} |
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else |
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{ |
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if (this._canvas||this._vimage||this._img) { |
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var angle = this._parameters.easing(0, actualTime - this._animateStartTime, this._animateStartAngle, this._parameters.animateTo - this._animateStartAngle, this._parameters.duration); |
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this._rotate((~~(angle*10))/10); |
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} |
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if (this._parameters.step) { |
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this._parameters.step(this._angle); |
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} |
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var self = this; |
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this._timer = setTimeout(function() |
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{ |
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self._animate.call(self); |
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}, 10); |
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} |
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// To fix Bug that prevents using recursive function in callback I moved this function to back |
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if (this._parameters.callback && checkEnd){ |
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this._angle = this._parameters.animateTo; |
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this._rotate(this._angle); |
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this._parameters.callback.call(this._rootObj); |
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} |
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}, |
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_rotate : (function() |
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{ |
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var rad = Math.PI/180; |
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if (IE) |
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return function(angle) |
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{ |
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this._angle = angle; |
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this._container.style.rotation=(angle%360)+"deg"; |
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} |
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else if (supportedCSS) |
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return function(angle){ |
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this._angle = angle; |
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this._img.style[supportedCSS]="rotate("+(angle%360)+"deg)"; |
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} |
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else |
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return function(angle) |
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{ |
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this._angle = angle; |
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angle=(angle%360)* rad; |
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// clear canvas |
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this._canvas.width = this._width+this._widthAdd; |
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this._canvas.height = this._height+this._heightAdd; |
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// REMEMBER: all drawings are read from backwards.. so first function is translate, then rotate, then translate, translate.. |
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this._cnv.translate(this._widthAddHalf,this._heightAddHalf); // at least center image on screen |
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this._cnv.translate(this._widthHalf,this._heightHalf); // we move image back to its orginal |
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this._cnv.rotate(angle); // rotate image |
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this._cnv.translate(-this._widthHalf,-this._heightHalf); // move image to its center, so we can rotate around its center |
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this._cnv.scale(this._aspectW,this._aspectH); // SCALE - if needed ;) |
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this._cnv.drawImage(this._img, 0, 0); // First - we draw image |
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} |
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})() |
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} |
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if (IE) |
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{ |
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Wilq32.PhotoEffect.prototype.createVMLNode=(function(){ |
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document.createStyleSheet().addRule(".rvml", "behavior:url(#default#VML)"); |
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try { |
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!document.namespaces.rvml && document.namespaces.add("rvml", "urn:schemas-microsoft-com:vml"); |
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return function (tagName) { |
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return document.createElement('<rvml:' + tagName + ' class="rvml">'); |
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}; |
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} catch (e) { |
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return function (tagName) { |
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return document.createElement('<' + tagName + ' xmlns="urn:schemas-microsoft.com:vml" class="rvml">'); |
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}; |
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} |
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})(); |
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} |
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})(jQuery); |