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Team:Groningen/Groningen2012 ID 20120818 jQueryRotate.js
From 2012.igem.org
// VERSION: 2.2 LAST UPDATE: 13.03.2012 /*
* Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php * * Made by Wilq32, wilq32@gmail.com, Wroclaw, Poland, 01.2009 * Website: http://code.google.com/p/jqueryrotate/ */
// Documentation removed from script file (was kinda useless and outdated)
(function($) { var supportedCSS,styles=document.getElementsByTagName("head")[0].style,toCheck="transformProperty WebkitTransform OTransform msTransform MozTransform".split(" "); for (var a=0;a<toCheck.length;a++) if (styles[toCheck[a]] !== undefined) supportedCSS = toCheck[a]; // Bad eval to preven google closure to remove it from code o_O // After compresion replace it back to var IE = 'v' == '\v' var IE = eval('"v"=="\v"');
jQuery.fn.extend({
rotate:function(parameters)
{
if (this.length===0||typeof parameters=="undefined") return;
if (typeof parameters=="number") parameters={angle:parameters};
var returned=[];
for (var i=0,i0=this.length;i<i0;i++)
{
var element=this.get(i);
if (!element.Wilq32 || !element.Wilq32.PhotoEffect) {
var paramClone = $.extend(true, {}, parameters);
var newRotObject = new Wilq32.PhotoEffect(element,paramClone)._rootObj;
returned.push($(newRotObject));
}
else {
element.Wilq32.PhotoEffect._handleRotation(parameters);
}
}
return returned;
},
getRotateAngle: function(){
var ret = [];
for (var i=0,i0=this.length;i<i0;i++)
{
var element=this.get(i);
if (element.Wilq32 && element.Wilq32.PhotoEffect) {
ret[i] = element.Wilq32.PhotoEffect._angle;
}
}
return ret;
},
stopRotate: function(){
for (var i=0,i0=this.length;i<i0;i++)
{
var element=this.get(i);
if (element.Wilq32 && element.Wilq32.PhotoEffect) {
clearTimeout(element.Wilq32.PhotoEffect._timer);
}
}
}
});
// Library agnostic interface
Wilq32=window.Wilq32||{}; Wilq32.PhotoEffect=(function(){
if (supportedCSS) { return function(img,parameters){ img.Wilq32 = { PhotoEffect: this };
this._img = this._rootObj = this._eventObj = img;
this._handleRotation(parameters);
} } else { return function(img,parameters) { // Make sure that class and id are also copied - just in case you would like to refeer to an newly created object
this._img = img;
this._rootObj=document.createElement('span'); this._rootObj.style.display="inline-block"; this._rootObj.Wilq32 = { PhotoEffect: this }; img.parentNode.insertBefore(this._rootObj,img);
if (img.complete) { this._Loader(parameters); } else { var self=this; // TODO: Remove jQuery dependency jQuery(this._img).bind("load", function() { self._Loader(parameters); }); } } } })();
Wilq32.PhotoEffect.prototype={
_setupParameters : function (parameters){
this._parameters = this._parameters || {};
if (typeof this._angle !== "number") this._angle = 0 ;
if (typeof parameters.angle==="number") this._angle = parameters.angle;
this._parameters.animateTo = (typeof parameters.animateTo==="number") ? (parameters.animateTo) : (this._angle);
this._parameters.step = parameters.step || this._parameters.step || null;
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; } this._parameters.duration = parameters.duration || this._parameters.duration || 1000;
this._parameters.callback = parameters.callback || this._parameters.callback || function(){};
if (parameters.bind && parameters.bind != this._parameters.bind) this._BindEvents(parameters.bind);
}, _handleRotation : function(parameters){
this._setupParameters(parameters);
if (this._angle==this._parameters.animateTo) {
this._rotate(this._angle);
}
else {
this._animateStart();
}
},
_BindEvents:function(events){ if (events && this._eventObj) {
// Unbinding previous Events
if (this._parameters.bind){
var oldEvents = this._parameters.bind;
for (var a in oldEvents) if (oldEvents.hasOwnProperty(a))
// TODO: Remove jQuery dependency
jQuery(this._eventObj).unbind(a,oldEvents[a]);
}
this._parameters.bind = events;
for (var a in events) if (events.hasOwnProperty(a)) // TODO: Remove jQuery dependency jQuery(this._eventObj).bind(a,events[a]); } },
_Loader:(function() { if (IE) return function(parameters) { var width=this._img.width; var height=this._img.height; this._img.parentNode.removeChild(this._img);
this._vimage = this.createVMLNode('image'); this._vimage.src=this._img.src; this._vimage.style.height=height+"px"; this._vimage.style.width=width+"px"; this._vimage.style.position="absolute"; // FIXES IE PROBLEM - its only rendered if its on absolute position! this._vimage.style.top = "0px"; this._vimage.style.left = "0px";
/* Group minifying a small 1px precision problem when rotating object */ this._container = this.createVMLNode('group'); this._container.style.width=width; this._container.style.height=height; this._container.style.position="absolute"; this._container.setAttribute('coordsize',width-1+','+(height-1)); // This -1, -1 trying to fix ugly problem with small displacement on IE this._container.appendChild(this._vimage);
this._rootObj.appendChild(this._container); this._rootObj.style.position="relative"; // FIXES IE PROBLEM this._rootObj.style.width=width+"px"; this._rootObj.style.height=height+"px"; this._rootObj.setAttribute('id',this._img.getAttribute('id')); this._rootObj.className=this._img.className; this._eventObj = this._rootObj; this._handleRotation(parameters); } else return function (parameters) { this._rootObj.setAttribute('id',this._img.getAttribute('id')); this._rootObj.className=this._img.className;
this._width=this._img.width; this._height=this._img.height; this._widthHalf=this._width/2; // used for optimisation this._heightHalf=this._height/2;// used for optimisation
var _widthMax=Math.sqrt((this._height)*(this._height) + (this._width) * (this._width));
this._widthAdd = _widthMax - this._width; this._heightAdd = _widthMax - this._height; // widthMax because maxWidth=maxHeight this._widthAddHalf=this._widthAdd/2; // used for optimisation this._heightAddHalf=this._heightAdd/2;// used for optimisation
this._img.parentNode.removeChild(this._img);
this._aspectW = ((parseInt(this._img.style.width,10)) || this._width)/this._img.width; this._aspectH = ((parseInt(this._img.style.height,10)) || this._height)/this._img.height;
this._canvas=document.createElement('canvas'); this._canvas.setAttribute('width',this._width); this._canvas.style.position="relative"; this._canvas.style.left = -this._widthAddHalf + "px"; this._canvas.style.top = -this._heightAddHalf + "px"; this._canvas.Wilq32 = this._rootObj.Wilq32;
this._rootObj.appendChild(this._canvas); this._rootObj.style.width=this._width+"px"; this._rootObj.style.height=this._height+"px";
this._eventObj = this._canvas;
this._cnv=this._canvas.getContext('2d');
this._handleRotation(parameters);
} })(),
_animateStart:function() { if (this._timer) { clearTimeout(this._timer); } this._animateStartTime = +new Date; this._animateStartAngle = this._angle; this._animate(); },
_animate:function()
{
var actualTime = +new Date;
var checkEnd = actualTime - this._animateStartTime > this._parameters.duration;
// TODO: Bug for animatedGif for static rotation ? (to test)
if (checkEnd && !this._parameters.animatedGif)
{
clearTimeout(this._timer);
}
else
{
if (this._canvas||this._vimage||this._img) {
var angle = this._parameters.easing(0, actualTime - this._animateStartTime, this._animateStartAngle, this._parameters.animateTo - this._animateStartAngle, this._parameters.duration);
this._rotate((~~(angle*10))/10);
}
if (this._parameters.step) {
this._parameters.step(this._angle);
}
var self = this;
this._timer = setTimeout(function()
{
self._animate.call(self);
}, 10);
}
// To fix Bug that prevents using recursive function in callback I moved this function to back
if (this._parameters.callback && checkEnd){
this._angle = this._parameters.animateTo;
this._rotate(this._angle);
this._parameters.callback.call(this._rootObj);
}
},
_rotate : (function() { var rad = Math.PI/180; if (IE) return function(angle) {
this._angle = angle;
this._container.style.rotation=(angle%360)+"deg"; } else if (supportedCSS) return function(angle){
this._angle = angle;
this._img.style[supportedCSS]="rotate("+(angle%360)+"deg)"; } else return function(angle) {
this._angle = angle;
angle=(angle%360)* rad; // clear canvas this._canvas.width = this._width+this._widthAdd; this._canvas.height = this._height+this._heightAdd;
// REMEMBER: all drawings are read from backwards.. so first function is translate, then rotate, then translate, translate.. this._cnv.translate(this._widthAddHalf,this._heightAddHalf); // at least center image on screen this._cnv.translate(this._widthHalf,this._heightHalf); // we move image back to its orginal this._cnv.rotate(angle); // rotate image this._cnv.translate(-this._widthHalf,-this._heightHalf); // move image to its center, so we can rotate around its center this._cnv.scale(this._aspectW,this._aspectH); // SCALE - if needed ;) this._cnv.drawImage(this._img, 0, 0); // First - we draw image }
})() }
if (IE) { Wilq32.PhotoEffect.prototype.createVMLNode=(function(){ document.createStyleSheet().addRule(".rvml", "behavior:url(#default#VML)"); try { !document.namespaces.rvml && document.namespaces.add("rvml", "urn:schemas-microsoft-com:vml"); return function (tagName) { return document.createElement('<rvml:' + tagName + ' class="rvml">'); }; } catch (e) { return function (tagName) { return document.createElement('<' + tagName + ' xmlns="urn:schemas-microsoft.com:vml" class="rvml">'); }; } })(); }
})(jQuery);
