/*

jSignature v2 "2018-11-06T13:56" "commit ID 89c22b348ab2e1d92a928d8fd992f175e8bc5cbd"
Copyright (c) 2012 Willow Systems Corp http://willow-systems.com
Copyright (c) 2010 Brinley Ang http://www.unbolt.net
MIT License <http://www.opensource.org/licenses/mit-license.php>


Simplify.js BSD 
(c) 2012, Vladimir Agafonkin
mourner.github.com/simplify-js


base64 encoder
MIT, GPL
http://phpjs.org/functions/base64_encode
+   original by: Tyler Akins (http://rumkin.com)
+   improved by: Bayron Guevara
+   improved by: Thunder.m
+   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
+   bugfixed by: Pellentesque Malesuada
+   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
+   improved by: Rafal Kukawski (http://kukawski.pl)


jSignature v2 jSignature's Undo Button and undo functionality plugin


jSignature v2 jSignature's custom "base30" format export and import plugins.


jSignature v2 SVG export plugin.

*/
(function(){function q(a){var b=a.css("color"),c;a=a[0];for(var g=!1;a&&!c&&!g;){try{var d=$(a).css("background-color")}catch(l){d="transparent"}"transparent"!==d&&"rgba(0, 0, 0, 0)"!==d&&(c=d);g=a.body;a=a.parentNode}a=/rgb[a]*\((\d+),\s*(\d+),\s*(\d+)/;g=/#([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})/;d=void 0;if(d=b.match(a))var m={r:parseInt(d[1],10),g:parseInt(d[2],10),b:parseInt(d[3],10)};else(d=b.match(g))&&(m={r:parseInt(d[1],16),g:parseInt(d[2],16),b:parseInt(d[3],16)});
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m.b]),a=1,127<m&&(a=-1),m=Math.round(m+96*a),m={r:m,g:m,b:m}):m={r:191,g:191,b:191};return{color:b,"background-color":e?d(e):c,"decor-color":d(m)}}function k(a,b){this.x=a;this.y=b;this.reverse=function(){return new this.constructor(-1*this.x,-1*this.y)};this._length=null;this.getLength=function(){this._length||(this._length=Math.sqrt(Math.pow(this.x,2)+Math.pow(this.y,2)));return this._length};var c=function(a){return Math.round(a/Math.abs(a))};this.resizeTo=function(a){if(0===this.x&&0===this.y)this._length=
0;else if(0===this.x)this._length=a,this.y=a*c(this.y);else if(0===this.y)this._length=a,this.x=a*c(this.x);else{var b=Math.abs(this.y/this.x),g=Math.sqrt(Math.pow(a,2)/(1+Math.pow(b,2)));b*=g;this._length=a;this.x=g*c(this.x);this.y=b*c(this.y)}return this};this.angleTo=function(a){var b=this.getLength()*a.getLength();return 0===b?0:Math.acos(Math.min(Math.max((this.x*a.x+this.y*a.y)/b,-1),1))/Math.PI}}function h(a,b){this.x=a;this.y=b;this.getVectorToCoordinates=function(a,b){return new k(a-this.x,
b-this.y)};this.getVectorFromCoordinates=function(a,b){return this.getVectorToCoordinates(a,b).reverse()};this.getVectorToPoint=function(a){return new k(a.x-this.x,a.y-this.y)};this.getVectorFromPoint=function(a){return this.getVectorToPoint(a).reverse()}}function p(a,b,c,g,d){this.data=a;this.context=b;if(a.length)for(var m=a.length,e,l,f=0;f<m;f++){e=a[f];l=e.x.length;c.call(b,e);for(var t=1;t<l;t++)g.call(b,e,t);d.call(b,e)}this.changed=function(){};this.startStrokeFn=c;this.addToStrokeFn=g;this.endStrokeFn=
d;this.inStroke=!1;this._stroke=this._lastPoint=null;this.startStroke=function(a){if(a&&"number"==typeof a.x&&"number"==typeof a.y){this._stroke={x:[a.x],y:[a.y]};this.data.push(this._stroke);this._lastPoint=a;this.inStroke=!0;var b=this._stroke,c=this.startStrokeFn,d=this.context;setTimeout(function(){c.call(d,b)},3);return a}return null};this.addToStroke=function(a){if(this.inStroke&&"number"===typeof a.x&&"number"===typeof a.y&&4<Math.abs(a.x-this._lastPoint.x)+Math.abs(a.y-this._lastPoint.y)){var b=
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".parentresized"]=g.subscribe(c+".parentresized",function(b,m,e,l){return function(){var d=m.width();if(d!==e){for(var l in b)b.hasOwnProperty(l)&&(g.unsubscribe(b[l]),delete b[l]);var f=a.settings;a.$parent.children().remove();for(l in a)a.hasOwnProperty(l)&&delete a[l];l=f.data;d=1*d/e;var r=[],D,E;var h=0;for(D=l.length;h<D;h++){var k=l[h];var n={x:[],y:[]};var p=0;for(E=k.x.length;p<E;p++)n.x.push(k.x[p]*d),n.y.push(k.y[p]*d);r.push(n)}f.data=r;m[c](f)}}}(this.eventTokens,this.$parent,this.$parent.width(),
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this.$controlbarUpper=$('<div style="padding:0 !important; margin:0 !important;width: 100% !important; height: 0 !important; -ms-touch-action: none; touch-action: none;margin-top:-1em !important; margin-bottom:1em !important;"></div>').appendTo(g);this.isCanvasEmulator=!1;b=this.canvas=this.initializeCanvas(e);c=$(b);this.$controlbarLower=$('<div style="padding:0 !important; margin:0 !important;width: 100% !important; height: 0 !important; -ms-touch-action: none; touch-action: none;margin-top:-1.5em !important; margin-bottom:1.5em !important; position: relative;"></div>').appendTo(g);
this.canvasContext=b.getContext("2d");c.data("jSignature.this",this);e.lineWidth=function(a,b){return a?a:Math.max(Math.round(b/400),2)}(e.lineWidth,b.width);this.lineCurveThreshold=3*e.lineWidth;e.cssclass&&""!=$.trim(e.cssclass)&&c.addClass(e.cssclass);this.fatFingerCompensation=0;g=function(a){var b,c,d=function(d){d=d.changedTouches&&0<d.changedTouches.length?d.changedTouches[0]:d;return new h(Math.round(d.pageX+b),Math.round(d.pageY+c)+a.fatFingerCompensation)},g=new v(750,function(){a.dataEngine.endStroke()});
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2<b?(new h(a.x[b-3],a.y[b-3])).getVectorToPoint(e):new k(0,0);var n=.35*f.getLength(),t=f.angleTo(l.reverse()),p=d.angleTo(f.reverse());l=(new k(l.x+f.x,l.y+f.y)).resizeTo(Math.max(.05,t)*n);var r=(new k(f.x+d.x,f.y+d.y)).reverse().resizeTo(Math.max(.05,p)*n);f=this.canvasContext;n=e.x;p=e.y;t=c.x;var D=c.y,A=e.x+l.x;e=e.y+l.y;l=c.x+r.x;r=c.y+r.y;f.beginPath();f.moveTo(n,p);f.bezierCurveTo(A,e,l,r,t,D);f.closePath();f.stroke()}}d.getLength()<=this.lineCurveThreshold&&y(this.canvasContext,c.x,c.y,
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padding:0,border:"none",height:"ratio"!==a.height&&a.height?a.height.toString(10):1,width:"ratio"!==a.width&&a.width?a.width.toString(10):1,"-ms-touch-action":"none","touch-action":"none","background-color":a["background-color"]});c.appendTo(this.$parent);"ratio"===a.height?c.css("height",Math.round(c.width()/a.sizeRatio)):"ratio"===a.width&&c.css("width",Math.round(c.height()*a.sizeRatio));c.addClass("jSignature");b.width=c.width();b.height=c.height();this.isCanvasEmulator=x(b);b.onselectstart=function(a){a&&
a.preventDefault&&a.preventDefault();a&&a.stopPropagation&&a.stopPropagation();return!1};return b};(function(a){function b(a,b,d){var c=new Image,e=this;c.onload=function(){var a=e.getContext("2d"),b=a.shadowColor;a.shadowColor="transparent";a.drawImage(c,0,0,c.width<e.width?c.width:e.width,c.height<e.height?c.height:e.height);a.shadowColor=b};c.src="data:"+b+","+a}function c(a,b){this.find("canvas.jSignature").add(this.filter("canvas.jSignature")).data("jSignature.this").resetCanvas(a,b);return this}
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b,c){c(a)},image:b,"image/png;base64":b,"image/jpeg;base64":b,"image/jpg;base64":b},k=function(a){var b=!1;for(a=a.parentNode;a&&!b;)b=a.body,a=a.parentNode;return!b},n={"export":h,"import":l,instance:f},p={init:function(a){return this.each(function(){k(this)||new w(this,a,f)})},destroy:function(){return this.each(function(){if(!k(this)){var a=$(this).find("canvas").data("jSignature.this");if(a){a.$controlbarLower.remove();a.$controlbarUpper.remove();$(a.canvas).remove();for(var b in a.eventTokens)a.eventTokens.hasOwnProperty(b)&&
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(function(){function q(k,h,p){k=k.call(this);(function(h,k,p){h.events.subscribe(p+".change",function(){h.dataEngine.data.length?k.show():k.hide()})})(this,k,h);(function(h,k,p){var n=p+".undo";k.bind("click",function(){h.events.publish(n)});h.events.subscribe(n,function(){var k=h.dataEngine.data;k.length&&(k.pop(),h.resetCanvas(k))})})(this,k,this.events.topics.hasOwnProperty(h+".undo")?p:h)}$.fn.jSignature("addPlugin","instance","UndoButton",function(k){this.events.subscribe("jSignature.attachingEventHandlers",
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