paper.js/dist/paper-full.min.js

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/*!
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* Paper.js v0.9.22 - The Swiss Army Knife of Vector Graphics Scripting.
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* http://paperjs.org/
*
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* Copyright (c) 2011 - 2014, Juerg Lehni & Jonathan Puckey
* http://scratchdisk.com/ & http://jonathanpuckey.com/
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*
* Distributed under the MIT license. See LICENSE file for details.
*
* All rights reserved.
*
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* Date: Sat Feb 28 19:20:48 2015 +0100
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*
***
*
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* Straps.js - Class inheritance library with support for bean-style accessors
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*
* Copyright (c) 2006 - 2013 Juerg Lehni
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* http://scratchdisk.com/
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*
* Distributed under the MIT license.
*
***
*
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* Acorn.js
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* http://marijnhaverbeke.nl/acorn/
*
* Acorn is a tiny, fast JavaScript parser written in JavaScript,
* created by Marijn Haverbeke and released under an MIT license.
*
*/
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return new d(t.width,t.height,this,"setSize")},setSize:function(){var t=c.read(arguments);if(this._size){if(!this._size.equals(t)){var e=this._type,n=t.width,i=t.height;if("rectangle"===e){var r=c.min(this._radius,t.divide(2));this._radius.set(r.width,r.height)}else"circle"===e?(n=i=(n+i)/2,this._radius=n/2):"ellipse"===e&&this._radius.set(n/2,i/2);this._size.set(n,i),this._changed(9)}}else this._size=t.clone()},getRadius:function(){var t=this._radius;return"circle"===this._type?t:new d(t.width,t.height,this,"setRadius")},setRadius:function(t){var e=this._type;if("circle"===e){if(t===this._radius)return;var n=2*t;this._radius=t,this._size.set(n,n)}else if(t=c.read(arguments),this._radius){if(this._radius.equals(t))return;if(this._radius.set(t.width,t.height),"rectangle"===e){var n=c.max(this._size,t.multiply(2));this._size.set(n.width,n.height)}else"ellipse"===e&&this._size.set(2*t.width,2*t.height)}else this._radius=t.clone();this._changed(9)},isEmpty:function(){return!1},toPath:function(n){var i=new(L[e.capitalize(this._type)])({center:new h,size:this._size,radius:this._radius,insert:!1});return i.setStyle(this._style),i.transform(this._matrix),(n||n===t)&&i.insertAbove(this),i},_draw:function(t,e,n){var i=this._style,r=i.hasFill(),s=i.hasStroke(),a=e.dontFinish||e.clip,o=!n;if(r||s||a){var h=this._type,u=this._radius,l="circle"===h;if(e.dontStart||t.beginPath(),o&&l)t.arc(0,0,u,0,2*Math.PI,!0);else{var c=l?u:u.width,d=l?u:u.height,f=this._size,_=f.width,g=f.height;if(o&&"rect"===h&&0===c&&0===d)t.rect(-_/2,-g/2,_,g);else{var p=_/2,v=g/2,m=.44771525016920644,y=c*m,w=d*m,x=[-p,-v+d,-p,-v+w,-p+y,-v,-p+c,-v,p-c,-v,p-y,-v,p,-v+w,p,-v+d,p,v-d,p,v-w,p-y,v,p-c,v,-p+c,v,-p+y,v,-p,v-w,-p,v-d];n&&n.transform(x,x,32),t.moveTo(x[0],x[1]),t.bezierCurveTo(x[2],x[3],x[4],x[5],x[6],x[7]),p!==c&&t.lineTo(x[8],x[9]),t.bezierCurveTo(x[10],x[11],x[12],x[13],x[14],x[15]),v!==d&&t.lineTo(x[16],x[17]),t.bezierCurveTo(x[18],x[19],x[20],x[21],x[22],x[23]),p!==c&&t.lineTo(x[24],x[25]),t.bezierCurveTo(x[26],x[27],x[28],x[29],x[30],x[31])}}t.closePath()}a||!r&&!s||(this._setStyles(t),r&&(t.fill(i.getWindingRule()),t.shadowColor="rgba(0,0,0,0)"),s&&t.stroke())},_canComposite:function(){return!(this.hasFill()&&this.hasStroke())},_getBounds:function(t,e){var n=new f(this._size).setCenter(0,0);return"getBounds"!==t&&this.hasStroke()&&(n=n.expand(this.getStrokeWidth())),e?e._transformBounds(n):n}},new function(){function t(t,e,n){var i=t._radius;if(!i.isZero())for(var r=t._size.divide(2),s=0;4>s;s++){var a=new h(1&s?1:-1,s>1?1:-1),o=a.multiply(r),u=o.subtract(a.multiply(i)),l=new f(o,u);if((n?l.expand(n):l).contains(e))return u}}function e(t,e){var n=t.getAngleInRadians(),i=2*e.width,r=2*e.height,s=i*Math.sin(n),a=r*Math.cos(n);return i*r/(2*Math.sqrt(s*s+a*a))}return{_contains:function n(e){if("rectangle"===this._type){var i=t(this,e);return i?e.subtract(i).divide(this._radius).getLength()<=1:n.base.call(this,e)}return e.divide(this.size).getLength()<=.5},_hitTestSelf:function i(n,r){var s=!1;if(this.hasStroke()){var a=this._type,o=this._radius,h=this.getStrokeWidth()+2*r.tolerance;if("rectangle"===a){var u=t(this,n,h);if(u){var l=n.subtract(u);s=2*Math.abs(l.getLength()-e(l,o))<=h}else{var c=new f(this._size).setCenter(0,0),d=c.expand(h),_=c.expand(-h);s=d._containsPoint(n)&&!_._containsPoint(n)}}else"ellipse"===a&&(o=e(n,o)),s=2*Math.abs(n.getLength()-o)<=h}return s?new M("stroke",this):i.base.apply(this,arguments)}}},{statics:new function(){function t(t,n,i,r,s){var a=new C(e.getNamed(s));return a._type=t,a._size=i,a._radius=r,a.translate(n)}return{Circle:function(){var n=h.readNamed(arguments,"center"),i=e.readNamed(arguments,"radius");return t("circle",n,new c(2*i),i,arguments)},Rectangle:function(){var e=f.readNamed(arguments,"rectangle"),n=c.min(c.readNamed(arguments,"radius"),e.getSize(!0).divide(2));return t("rectangle",e.getCenter(!0),e.getSize(!0),n,arguments)},Ellipse:function(){var e=C._readEllipse(arguments),n=e.radius;return t("ellipse",e.center,n.multiply(2),n,arguments)},_readEllipse:function(t){var n,i;if(e.hasNamed(t,"radius"))n=h
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t[n].setClockwise(0===s%2&&e)}}return this}});var N=e.extend({_class:"PathIterator",initialize:function(t,e,n,i){function r(t,e){var n=A.getValues(t,e,i);o.push(n),s(n,t._index,0,1)}function s(t,e,i,r){if(r-i>l&&!A.isFlatEnough(t,n||.25)){var a=A.subdivide(t),o=(i+r)/2;s(a[0],e,i,o),s(a[1],e,o,r)}else{var c=t[6]-t[0],d=t[7]-t[1],f=Math.sqrt(c*c+d*d);f>1e-6&&(u+=f,h.push({offset:u,value:r,index:e}))}}for(var a,o=[],h=[],u=0,l=1/(e||32),c=t._segments,d=c[0],f=1,_=c.length;_>f;f++)a=c[f],r(d,a),d=a;t._closed&&r(a,c[0]),this.curves=o,this.parts=h,this.length=u,this.index=0},getParameterAt:function(t){for(var e,n=this.index;e=n,!(0==n||this.parts[--n].offset<t););for(var i=this.parts.length;i>e;e++){var r=this.parts[e];if(r.offset>=t){this.index=e;var s=this.parts[e-1],a=s&&s.index==r.index?s.value:0,o=s?s.offset:0;return{value:a+(r.value-a)*(t-o)/(r.offset-o),index:r.index}}}var r=this.parts[this.parts.length-1];return{value:1,index:r.index}},evaluate:function(t,e){var n=this.getParameterAt(t);return A.evaluate(this.curves[n.index],n.value,e)},drawPart:function(t,e,n){e=this.getParameterAt(e),n=this.getParameterAt(n);for(var i=e.index;i<=n.index;i++){var r=A.getPart(this.curves[i],i==e.index?e.value:0,i==n.index?n.value:1);i==e.index&&t.moveTo(r[0],r[1]),t.bezierCurveTo.apply(t,r.slice(2))}}},e.each(["getPoint","getTangent","getNormal","getCurvature"],function(t,e){this[t+"At"]=function(t){return this.evaluate(t,e)}},{})),j=e.extend({initialize:function(t,e){for(var n,i=this.points=[],r=t._segments,s=0,a=r.length;a>s;s++){var o=r[s].point.clone();n&&n.equals(o)||(i.push(o),n=o)}t._closed&&(this.closed=!0,i.unshift(i[i.length-1]),i.push(i[1])),this.error=e},fit:function(){var t=this.points,e=t.length,n=this.segments=e>0?[new I(t[0])]:[];return e>1&&this.fitCubic(0,e-1,t[1].subtract(t[0]).normalize(),t[e-2].subtract(t[e-1]).normalize()),this.closed&&(n.shift(),n.pop()),n},fitCubic:function(e,n,i,r){if(1==n-e){var s=this.points[e],a=this.points[n],o=s.getDistance(a)/3;return this.addCurve([s,s.add(i.normalize(o)),a.add(r.normalize(o)),a]),t}for(var h,u=this.chordLengthParameterize(e,n),l=Math.max(this.error,this.error*this.error),c=0;4>=c;c++){var d=this.generateBezier(e,n,u,i,r),f=this.findMaxError(e,n,d,u);if(f.error<this.error)return this.addCurve(d),t;if(h=f.index,f.error>=l)break;this.reparameterize(e,n,u,d),l=f.error}var _=this.points[h-1].subtract(this.points[h]),g=this.points[h].subtract(this.points[h+1]),p=_.add(g).divide(2).normalize();this.fitCubic(e,h,i,p),this.fitCubic(h,n,p.negate(),r)},addCurve:function(t){var e=this.segments[this.segments.length-1];e.setHandleOut(t[1].subtract(t[0])),this.segments.push(new I(t[3],t[2].subtract(t[3])))},generateBezier:function(t,e,n,i,r){for(var s=1e-12,a=this.points[t],o=this.points[e],h=[[0,0],[0,0]],u=[0,0],l=0,c=e-t+1;c>l;l++){var d=n[l],f=1-d,_=3*d*f,g=f*f*f,p=_*f,v=_*d,m=d*d*d,y=i.normalize(p),w=r.normalize(v),x=this.points[t+l].subtract(a.multiply(g+p)).subtract(o.multiply(v+m));h[0][0]+=y.dot(y),h[0][1]+=y.dot(w),h[1][0]=h[0][1],h[1][1]+=w.dot(w),u[0]+=y.dot(x),u[1]+=w.dot(x)}var b,C,S=h[0][0]*h[1][1]-h[1][0]*h[0][1];if(Math.abs(S)>s){var P=h[0][0]*u[1]-h[1][0]*u[0],k=u[0]*h[1][1]-u[1]*h[0][1];b=k/S,C=P/S}else{var M=h[0][0]+h[0][1],I=h[1][0]+h[1][1];b=C=Math.abs(M)>s?u[0]/M:Math.abs(I)>s?u[1]/I:0}var z=o.getDistance(a);return s*=z,(s>b||s>C)&&(b=C=z/3),[a,a.add(i.normalize(b)),o.add(r.normalize(C)),o]},reparameterize:function(t,e,n,i){for(var r=t;e>=r;r++)n[r-t]=this.findRoot(i,this.points[r],n[r-t])},findRoot:function(t,e,n){for(var i=[],r=[],s=0;2>=s;s++)i[s]=t[s+1].subtract(t[s]).multiply(3);for(var s=0;1>=s;s++)r[s]=i[s+1].subtract(i[s]).multiply(2);var a=this.evaluate(3,t,n),o=this.evaluate(2,i,n),h=this.evaluate(1,r,n),u=a.subtract(e),l=o.dot(o)+u.dot(h);return Math.abs(l)<1e-6?n:n-u.dot(o)/l},evaluate:function(t,e,n){for(var i=e.slice(),r=1;t>=r;r++)for(var s=0;t-r>=s;s++)i[s]=i[s].multiply(1-n).add(i[s+1].multiply(n));return i[0]},chordLengthParameterize:function(t,e){for(var n=[0],i=t+1;e>=i;i++)n[i-t]=n[i-t-1]+this.points[i].getDistance(this.points[i-1]);for(va
}}),K=s.extend({_class:"Tool",_list:"tools",_reference:"tool",_events:["onActivate","onDeactivate","onEditOptions","onMouseDown","onMouseUp","onMouseDrag","onMouseMove","onKeyDown","onKeyUp"],initialize:function(t){s.call(this),this._firstMove=!0,this._count=0,this._downCount=0,this._set(t)},getMinDistance:function(){return this._minDistance},setMinDistance:function(t){this._minDistance=t,null!=this._minDistance&&null!=this._maxDistance&&this._minDistance>this._maxDistance&&(this._maxDistance=this._minDistance)},getMaxDistance:function(){return this._maxDistance},setMaxDistance:function(t){this._maxDistance=t,null!=this._minDistance&&null!=this._maxDistance&&this._maxDistance<this._minDistance&&(this._minDistance=t)},getFixedDistance:function(){return this._minDistance==this._maxDistance?this._minDistance:null},setFixedDistance:function(t){this._minDistance=t,this._maxDistance=t},_updateEvent:function(t,e,n,i,r,s,a){if(!r){if(null!=n||null!=i){var o=null!=n?n:0,h=e.subtract(this._point),u=h.getLength();if(o>u)return!1;var l=null!=i?i:0;if(0!=l)if(u>l)e=this._point.add(h.normalize(l));else if(a)return!1}if(s&&e.equals(this._point))return!1}switch(this._lastPoint=r&&"mousemove"==t?e:this._point,this._point=e,t){case"mousedown":this._lastPoint=this._downPoint,this._downPoint=this._point,this._downCount++;break;case"mouseup":this._lastPoint=this._downPoint}return this._count=r?0:this._count+1,!0},_fireEvent:function(t,e){var n=paper.project._removeSets;if(n){"mouseup"===t&&(n.mousedrag=null);var i=n[t];if(i){for(var r in i){var s=i[r];for(var a in n){var o=n[a];o&&o!=i&&delete o[s._id]}s.remove()}n[t]=null}}return this.responds(t)&&this.emit(t,new Y(this,t,e))},_handleEvent:function(t,e,n){paper=this._scope;var i=!1;switch(t){case"mousedown":this._updateEvent(t,e,null,null,!0,!1,!1),i=this._fireEvent(t,n);break;case"mousedrag":for(var r=!1,s=!1;this._updateEvent(t,e,this.minDistance,this.maxDistance,!1,r,s);)i=this._fireEvent(t,n)||i,r=!0,s=!0;break;case"mouseup":!e.equals(this._point)&&this._updateEvent("mousedrag",e,this.minDistance,this.maxDistance,!1,!1,!1)&&(i=this._fireEvent("mousedrag",n)),this._updateEvent(t,e,null,this.maxDistance,!1,!1,!1),i=this._fireEvent(t,n)||i,this._updateEvent(t,e,null,null,!0,!1,!1),this._firstMove=!0;break;case"mousemove":for(;this._updateEvent(t,e,this.minDistance,this.maxDistance,this._firstMove,!0,!1);)i=this._fireEvent(t,n)||i,this._firstMove=!1}return i&&n.preventDefault(),i}}),Q={request:function(t,e,n){var i=new(window.ActiveXObject||XMLHttpRequest)("Microsoft.XMLHTTP");return i.open(t.toUpperCase(),e,!0),"overrideMimeType"in i&&i.overrideMimeType("text/plain"),i.onreadystatechange=function(){if(4===i.readyState){var t=i.status;if(0!==t&&200!==t)throw Error("Could not load "+e+" (Error "+t+")");n.call(i,i.responseText)}},i.send(null)}},te={canvases:[],getCanvas:function(t,e){var n,i=!0;"object"==typeof t&&(e=t.height,t=t.width),n=this.canvases.length?this.canvases.pop():document.createElement("canvas");var r=n.getContext("2d");return n.width===t&&n.height===e?i&&r.clearRect(0,0,t+1,e+1):(n.width=t,n.height=e),r.save(),n},getContext:function(t,e){return this.getCanvas(t,e).getContext("2d")},release:function(t){var e=t.canvas?t.canvas:t;e.getContext("2d").restore(),this.canvases.push(e)}},ee=new function(){function t(t,e,n){return.2989*t+.587*e+.114*n}function n(e,n,i,r){var s=r-t(e,n,i);f=e+s,_=n+s,g=i+s;var r=t(f,_,g),a=p(f,_,g),o=v(f,_,g);if(0>a){var h=r-a;f=r+(f-r)*r/h,_=r+(_-r)*r/h,g=r+(g-r)*r/h}if(o>255){var u=255-r,l=o-r;f=r+(f-r)*u/l,_=r+(_-r)*u/l,g=r+(g-r)*u/l}}function i(t,e,n){return v(t,e,n)-p(t,e,n)}function r(t,e,n,i){var r,s=[t,e,n],a=v(t,e,n),o=p(t,e,n);o=o===t?0:o===e?1:2,a=a===t?0:a===e?1:2,r=0===p(o,a)?1===v(o,a)?2:1:0,s[a]>s[o]?(s[r]=(s[r]-s[o])*i/(s[a]-s[o]),s[a]=i):s[r]=s[a]=0,s[o]=0,f=s[0],_=s[1],g=s[2]}var s,a,o,h,u,l,c,d,f,_,g,p=Math.min,v=Math.max,m=Math.abs,y={multiply:function(){f=u*s/255,_=l*a/255,g=c*o/255},screen:function(){f=u+s-u*s/255,_=l+a-l*a/255,g=c+o-c*o/255},overlay:function(){f=128>u?2*u*s/255:255-2*(255-u)*(255-s)/255,_=128>l?2*l*a/255:255-2*(2
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