diff --git "a/js/fabric.min.js" "b/js/fabric.min.js" new file mode 100644--- /dev/null +++ "b/js/fabric.min.js" @@ -0,0 +1 @@ +var fabric=fabric||{version:"5.2.1"};if("undefined"!=typeof exports?exports.fabric=fabric:"function"==typeof define&&define.amd&&define([],function(){return fabric}),"undefined"!=typeof document&&"undefined"!=typeof window)fabric.document=document instanceof("undefined"!=typeof HTMLDocument?HTMLDocument:Document)?document:document.implementation.createHTMLDocument(""),fabric.window=window;else{var jsdom=require("jsdom"),virtualWindow=new jsdom.JSDOM(decodeURIComponent("%3C!DOCTYPE%20html%3E%3Chtml%3E%3Chead%3E%3C%2Fhead%3E%3Cbody%3E%3C%2Fbody%3E%3C%2Fhtml%3E"),{features:{FetchExternalResources:["img"]},resources:"usable"}).window;fabric.document=virtualWindow.document,fabric.jsdomImplForWrapper=require("jsdom/lib/jsdom/living/generated/utils").implForWrapper,fabric.nodeCanvas=require("jsdom/lib/jsdom/utils").Canvas,fabric.window=virtualWindow,DOMParser=fabric.window.DOMParser}fabric.isTouchSupported="ontouchstart"in fabric.window||"ontouchstart"in fabric.document||fabric.window&&fabric.window.navigator&&fabric.window.navigator.maxTouchPoints>0,fabric.isLikelyNode="undefined"!=typeof Buffer&&"undefined"==typeof window,fabric.SHARED_ATTRIBUTES=["display","transform","fill","fill-opacity","fill-rule","opacity","stroke","stroke-dasharray","stroke-linecap","stroke-dashoffset","stroke-linejoin","stroke-miterlimit","stroke-opacity","stroke-width","id","paint-order","vector-effect","instantiated_by_use","clip-path"],fabric.DPI=96,fabric.reNum="(?:[-+]?(?:\\d+|\\d*\\.\\d+)(?:[eE][-+]?\\d+)?)",fabric.commaWsp="(?:\\s+,?\\s*|,\\s*)",fabric.rePathCommand=/([-+]?((\d+\.\d+)|((\d+)|(\.\d+)))(?:[eE][-+]?\d+)?)/gi,fabric.reNonWord=/[ \n\.,;!\?\-]/,fabric.fontPaths={},fabric.iMatrix=[1,0,0,1,0,0],fabric.svgNS="http://www.w3.org/2000/svg",fabric.perfLimitSizeTotal=2097152,fabric.maxCacheSideLimit=4096,fabric.minCacheSideLimit=256,fabric.charWidthsCache={},fabric.textureSize=2048,fabric.disableStyleCopyPaste=!1,fabric.enableGLFiltering=!0,fabric.devicePixelRatio=fabric.window.devicePixelRatio||fabric.window.webkitDevicePixelRatio||fabric.window.mozDevicePixelRatio||1,fabric.browserShadowBlurConstant=1,fabric.arcToSegmentsCache={},fabric.boundsOfCurveCache={},fabric.cachesBoundsOfCurve=!0,fabric.forceGLPutImageData=!1,fabric.initFilterBackend=function(){return fabric.enableGLFiltering&&fabric.isWebglSupported&&fabric.isWebglSupported(fabric.textureSize)?(console.log("max texture size: "+fabric.maxTextureSize),new fabric.WebglFilterBackend({tileSize:fabric.textureSize})):fabric.Canvas2dFilterBackend?new fabric.Canvas2dFilterBackend:void 0};"undefined"!=typeof document&&"undefined"!=typeof window&&(window.fabric=fabric);!function(){function t(t,e){if(this.__eventListeners[t]){var r=this.__eventListeners[t];e?r[r.indexOf(e)]=!1:fabric.util.array.fill(r,!1)}}function e(t,e){if(this.__eventListeners||(this.__eventListeners={}),1===arguments.length)for(var r in t)this.on(r,t[r]);else this.__eventListeners[t]||(this.__eventListeners[t]=[]),this.__eventListeners[t].push(e);return this}function r(t,e){var r=function(){e.apply(this,arguments),this.off(t,r)}.bind(this);this.on(t,r)}function n(t,e){if(1===arguments.length)for(var n in t)r.call(this,n,t[n]);else r.call(this,t,e);return this}function i(e,r){if(!this.__eventListeners)return this;if(0===arguments.length)for(e in this.__eventListeners)t.call(this,e);else if(1===arguments.length&&"object"==typeof arguments[0])for(var n in e)t.call(this,n,e[n]);else t.call(this,e,r);return this}function a(t,e){if(!this.__eventListeners)return this;var r=this.__eventListeners[t];if(!r)return this;for(var n=0,i=r.length;i>n;n++)r[n]&&r[n].call(this,e||{});return this.__eventListeners[t]=r.filter(function(t){return t!==!1}),this}fabric.Observable={fire:a,on:e,once:n,off:i}}();fabric.Collection={_objects:[],add:function(){if(this._objects.push.apply(this._objects,arguments),this._onObjectAdded)for(var t=0,e=arguments.length;e>t;t++)this._onObjectAdded(arguments[t]);return this.renderOnAddRemove&&this.requestRenderAll(),this},insertAt:function(t,e,r){var n=this._objects;return r?n[e]=t:n.splice(e,0,t),this._onObjectAdded&&this._onObjectAdded(t),this.renderOnAddRemove&&this.requestRenderAll(),this},remove:function(){for(var t,e=this._objects,r=!1,n=0,i=arguments.length;i>n;n++)t=e.indexOf(arguments[n]),-1!==t&&(r=!0,e.splice(t,1),this._onObjectRemoved&&this._onObjectRemoved(arguments[n]));return this.renderOnAddRemove&&r&&this.requestRenderAll(),this},forEachObject:function(t,e){for(var r=this.getObjects(),n=0,i=r.length;i>n;n++)t.call(e,r[n],n,r);return this},getObjects:function(t){return"undefined"==typeof t?this._objects.concat():this._objects.filter(function(e){return e.type===t})},item:function(t){return this._objects[t]},isEmpty:function(){return 0===this._objects.length},size:function(){return this._objects.length},contains:function(t,e){return this._objects.indexOf(t)>-1?!0:e?this._objects.some(function(e){return"function"==typeof e.contains&&e.contains(t,!0)}):!1},complexity:function(){return this._objects.reduce(function(t,e){return t+=e.complexity?e.complexity():0},0)}};fabric.CommonMethods={_setOptions:function(i){for(var e in i)this.set(e,i[e])},_initGradient:function(i,e){!i||!i.colorStops||i instanceof fabric.Gradient||this.set(e,new fabric.Gradient(i))},_initPattern:function(i,e,t){!i||!i.source||i instanceof fabric.Pattern?t&&t():this.set(e,new fabric.Pattern(i,t))},_setObject:function(i){for(var e in i)this._set(e,i[e])},set:function(i,e){return"object"==typeof i?this._setObject(i):this._set(i,e),this},_set:function(i,e){this[i]=e},toggle:function(i){var e=this.get(i);return"boolean"==typeof e&&this.set(i,!e),this},get:function(i){return this[i]}};!function(t){var e=Math.sqrt,r=Math.atan2,i=Math.pow,n=Math.PI/180,a=Math.PI/2;fabric.util={cos:function(t){if(0===t)return 1;0>t&&(t=-t);var e=t/a;switch(e){case 1:case 3:return 0;case 2:return-1}return Math.cos(t)},sin:function(t){if(0===t)return 0;var e=t/a,r=1;switch(0>t&&(r=-1),e){case 1:return r;case 2:return 0;case 3:return-r}return Math.sin(t)},removeFromArray:function(t,e){var r=t.indexOf(e);return-1!==r&&t.splice(r,1),t},getRandomInt:function(t,e){return Math.floor(Math.random()*(e-t+1))+t},degreesToRadians:function(t){return t*n},radiansToDegrees:function(t){return t/n},rotatePoint:function(t,e,r){var i=new fabric.Point(t.x-e.x,t.y-e.y),n=fabric.util.rotateVector(i,r);return new fabric.Point(n.x,n.y).addEquals(e)},rotateVector:function(t,e){var r=fabric.util.sin(e),i=fabric.util.cos(e),n=t.x*i-t.y*r,a=t.x*r+t.y*i;return{x:n,y:a}},createVector:function(t,e){return new fabric.Point(e.x-t.x,e.y-t.y)},calcAngleBetweenVectors:function(t,e){return Math.acos((t.x*e.x+t.y*e.y)/(Math.hypot(t.x,t.y)*Math.hypot(e.x,e.y)))},getHatVector:function(t){return new fabric.Point(t.x,t.y).multiply(1/Math.hypot(t.x,t.y))},getBisector:function(t,e,r){var i=fabric.util.createVector(t,e),n=fabric.util.createVector(t,r),a=fabric.util.calcAngleBetweenVectors(i,n),o=fabric.util.calcAngleBetweenVectors(fabric.util.rotateVector(i,a),n),c=a*(0===o?1:-1)/2;return{vector:fabric.util.getHatVector(fabric.util.rotateVector(i,c)),angle:a}},projectStrokeOnPoints:function(t,e,r){var i=[],n=e.strokeWidth/2,a=e.strokeUniform?new fabric.Point(1/e.scaleX,1/e.scaleY):new fabric.Point(1,1),o=function(t){var e=n/Math.hypot(t.x,t.y);return new fabric.Point(t.x*e*a.x,t.y*e*a.y)};return t.length<=1?i:(t.forEach(function(c,f){var s,l,u=new fabric.Point(c.x,c.y);0===f?(l=t[f+1],s=r?o(fabric.util.createVector(l,u)).addEquals(u):t[t.length-1]):f===t.length-1?(s=t[f-1],l=r?o(fabric.util.createVector(s,u)).addEquals(u):t[0]):(s=t[f-1],l=t[f+1]);var d,b,h=fabric.util.getBisector(u,s,l),m=h.vector,p=h.angle;return"miter"===e.strokeLineJoin&&(d=-n/Math.sin(p/2),b=new fabric.Point(m.x*d*a.x,m.y*d*a.y),Math.hypot(b.x,b.y)/n<=e.strokeMiterLimit)?(i.push(u.add(b)),void i.push(u.subtract(b))):(d=-n*Math.SQRT2,b=new fabric.Point(m.x*d*a.x,m.y*d*a.y),i.push(u.add(b)),void i.push(u.subtract(b)))}),i)},transformPoint:function(t,e,r){return r?new fabric.Point(e[0]*t.x+e[2]*t.y,e[1]*t.x+e[3]*t.y):new fabric.Point(e[0]*t.x+e[2]*t.y+e[4],e[1]*t.x+e[3]*t.y+e[5])},makeBoundingBoxFromPoints:function(t,e){if(e)for(var r=0;rr;++r)a=a[i[r]];return a},loadImage:function(t,e,r,i){if(!t)return void(e&&e.call(r,t));var n=fabric.util.createImage(),a=function(){e&&e.call(r,n,!1),n=n.onload=n.onerror=null};n.onload=a,n.onerror=function(){fabric.log("Error loading "+n.src),e&&e.call(r,null,!0),n=n.onload=n.onerror=null},0!==t.indexOf("data")&&void 0!==i&&null!==i&&(n.crossOrigin=i),"data:image/svg"===t.substring(0,14)&&(n.onload=null,fabric.util.loadImageInDom(n,a)),n.src=t},loadImageInDom:function(t,e){var r=fabric.document.createElement("div");r.style.width=r.style.height="1px",r.style.left=r.style.top="-100%",r.style.position="absolute",r.appendChild(t),fabric.document.querySelector("body").appendChild(r),t.onload=function(){e(),r.parentNode.removeChild(r),r=null}},enlivenObjects:function(t,e,r,i){function n(){++o===c&&e&&e(a.filter(function(t){return t}))}t=t||[];var a=[],o=0,c=t.length;return c?void t.forEach(function(t,e){if(!t||!t.type)return void n();var o=fabric.util.getKlass(t.type,r);o.fromObject(t,function(r,o){o||(a[e]=r),i&&i(t,r,o),n()})}):void(e&&e(a))},enlivenObjectEnlivables:function(t,e,r){var i=fabric.Object.ENLIVEN_PROPS.filter(function(e){return!!t[e]});fabric.util.enlivenObjects(i.map(function(e){return t[e]}),function(t){var n={};i.forEach(function(r,i){n[r]=t[i],e&&(e[r]=t[i])}),r&&r(n)})},enlivenPatterns:function(t,e){function r(){++n===a&&e&&e(i)}t=t||[];var i=[],n=0,a=t.length;return a?void t.forEach(function(t,e){t&&t.source?new fabric.Pattern(t,function(t){i[e]=t,r()}):(i[e]=t,r())}):void(e&&e(i))},groupSVGElements:function(t,e,r){var i;return t&&1===t.length?t[0]:(e&&(e.width&&e.height?e.centerPoint={x:e.width/2,y:e.height/2}:(delete e.width,delete e.height)),i=new fabric.Group(t,e),"undefined"!=typeof r&&(i.sourcePath=r),i)},populateWithProperties:function(t,e,r){if(r&&Array.isArray(r))for(var i=0,n=r.length;n>i;i++)r[i]in t&&(e[r[i]]=t[r[i]])},createCanvasElement:function(){return fabric.document.createElement("canvas")},copyCanvasElement:function(t){var e=fabric.util.createCanvasElement();return e.width=t.width,e.height=t.height,e.getContext("2d").drawImage(t,0,0),e},toDataURL:function(t,e,r){return t.toDataURL("image/"+e,r)},createImage:function(){return fabric.document.createElement("img")},multiplyTransformMatrices:function(t,e,r){return[t[0]*e[0]+t[2]*e[1],t[1]*e[0]+t[3]*e[1],t[0]*e[2]+t[2]*e[3],t[1]*e[2]+t[3]*e[3],r?0:t[0]*e[4]+t[2]*e[5]+t[4],r?0:t[1]*e[4]+t[3]*e[5]+t[5]]},qrDecompose:function(t){var a=r(t[1],t[0]),o=i(t[0],2)+i(t[1],2),c=e(o),f=(t[0]*t[3]-t[2]*t[1])/c,s=r(t[0]*t[2]+t[1]*t[3],o);return{angle:a/n,scaleX:c,scaleY:f,skewX:s/n,skewY:0,translateX:t[4],translateY:t[5]}},calcRotateMatrix:function(t){if(!t.angle)return fabric.iMatrix.concat();var e=fabric.util.degreesToRadians(t.angle),r=fabric.util.cos(e),i=fabric.util.sin(e);return[r,i,-i,r,0,0]},calcDimensionsMatrix:function(t){var e="undefined"==typeof t.scaleX?1:t.scaleX,r="undefined"==typeof t.scaleY?1:t.scaleY,i=[t.flipX?-e:e,0,0,t.flipY?-r:r,0,0],n=fabric.util.multiplyTransformMatrices,a=fabric.util.degreesToRadians;return t.skewX&&(i=n(i,[1,0,Math.tan(a(t.skewX)),1],!0)),t.skewY&&(i=n(i,[1,Math.tan(a(t.skewY)),0,1],!0)),i},composeMatrix:function(t){var e=[1,0,0,1,t.translateX||0,t.translateY||0],r=fabric.util.multiplyTransformMatrices;return t.angle&&(e=r(e,fabric.util.calcRotateMatrix(t))),(1!==t.scaleX||1!==t.scaleY||t.skewX||t.skewY||t.flipX||t.flipY)&&(e=r(e,fabric.util.calcDimensionsMatrix(t))),e},resetObjectTransform:function(t){t.scaleX=1,t.scaleY=1,t.skewX=0,t.skewY=0,t.flipX=!1,t.flipY=!1,t.rotate(0)},saveObjectTransform:function(t){return{scaleX:t.scaleX,scaleY:t.scaleY,skewX:t.skewX,skewY:t.skewY,angle:t.angle,left:t.left,flipX:t.flipX,flipY:t.flipY,top:t.top}},isTransparent:function(t,e,r,i){i>0&&(e>i?e-=i:e=0,r>i?r-=i:r=0);var n,a,o=!0,c=t.getImageData(e,r,2*i||1,2*i||1),f=c.data.length;for(n=3;f>n&&(a=c.data[n],o=0>=a,o!==!1);n+=4);return c=null,o},parsePreserveAspectRatioAttribute:function(t){var e,r="meet",i="Mid",n="Mid",a=t.split(" ");return a&&a.length&&(r=a.pop(),"meet"!==r&&"slice"!==r?(e=r,r="meet"):a.length&&(e=a.pop())),i="none"!==e?e.slice(1,4):"none",n="none"!==e?e.slice(5,8):"none",{meetOrSlice:r,alignX:i,alignY:n}},clearFabricFontCache:function(t){t=(t||"").toLowerCase(),t?fabric.charWidthsCache[t]&&delete fabric.charWidthsCache[t]:fabric.charWidthsCache={}},limitDimsByArea:function(t,e){var r=Math.sqrt(e*t),i=Math.floor(e/r);return{x:Math.floor(r),y:i}},capValue:function(t,e,r){return Math.max(t,Math.min(e,r))},findScaleToFit:function(t,e){return Math.min(e.width/t.width,e.height/t.height)},findScaleToCover:function(t,e){return Math.max(e.width/t.width,e.height/t.height)},matrixToSVG:function(t){return"matrix("+t.map(function(t){return fabric.util.toFixed(t,fabric.Object.NUM_FRACTION_DIGITS)}).join(" ")+")"},removeTransformFromObject:function(t,e){var r=fabric.util.invertTransform(e),i=fabric.util.multiplyTransformMatrices(r,t.calcOwnMatrix());fabric.util.applyTransformToObject(t,i)},addTransformToObject:function(t,e){fabric.util.applyTransformToObject(t,fabric.util.multiplyTransformMatrices(e,t.calcOwnMatrix()))},applyTransformToObject:function(t,e){var r=fabric.util.qrDecompose(e),i=new fabric.Point(r.translateX,r.translateY);t.flipX=!1,t.flipY=!1,t.set("scaleX",r.scaleX),t.set("scaleY",r.scaleY),t.skewX=r.skewX,t.skewY=r.skewY,t.angle=r.angle,t.setPositionByOrigin(i,"center","center")},sizeAfterTransform:function(t,e,r){var i=t/2,n=e/2,a=[{x:-i,y:-n},{x:i,y:-n},{x:-i,y:n},{x:i,y:n}],o=fabric.util.calcDimensionsMatrix(r),c=fabric.util.makeBoundingBoxFromPoints(a,o);return{x:c.width,y:c.height}},mergeClipPaths:function(t,e){var r=t,i=e;r.inverted&&!i.inverted&&(r=e,i=t),fabric.util.applyTransformToObject(i,fabric.util.multiplyTransformMatrices(fabric.util.invertTransform(r.calcTransformMatrix()),i.calcTransformMatrix()));var n=r.inverted&&i.inverted;return n&&(r.inverted=i.inverted=!1),new fabric.Group([r],{clipPath:i,inverted:n})},hasStyleChanged:function(t,e,r){return r=r||!1,t.fill!==e.fill||t.stroke!==e.stroke||t.strokeWidth!==e.strokeWidth||t.fontSize!==e.fontSize||t.fontFamily!==e.fontFamily||t.fontWeight!==e.fontWeight||t.fontStyle!==e.fontStyle||t.deltaY!==e.deltaY||r&&(t.overline!==e.overline||t.underline!==e.underline||t.linethrough!==e.linethrough)},stylesToArray:function(t,e){for(var t=fabric.util.object.clone(t,!0),r=e.split("\n"),i=-1,n={},a=[],o=0;ow){var P=Math.sqrt(1-w/(y*v));a*=P,i*=P}else M=(c===o?-1:1)*Math.sqrt(w/(y*g+v*x));var C=M*a*p/i,k=-M*i*m/a,T=h*C-l*k+.5*e,S=l*C+h*k+.5*n,O=r(1,0,(m-C)/a,(p-k)/i),F=r((m-C)/a,(p-k)/i,(-m-C)/a,(-p-k)/i);0===o&&F>0?F-=2*s:1===o&&0>F&&(F+=2*s);for(var E=Math.ceil(Math.abs(F/s*2)),Y=[],j=F/E,D=8/3*Math.sin(j/4)*Math.sin(j/4)/Math.sin(j/2),X=O+j,I=0;E>I;I++)Y[I]=t(O,X,h,l,a,i,T,S,D,d,b),d=Y[I][5],b=Y[I][6],O=X,X+=j;return Y}function r(t,e,r,n){var a=Math.atan2(e,t),i=Math.atan2(n,r);return i>=a?i-a:2*Math.PI-(a-i)}function n(t,e,r,n,a,i,c,o){var f;if(fabric.cachesBoundsOfCurve&&(f=k.call(arguments),fabric.boundsOfCurveCache[f]))return fabric.boundsOfCurveCache[f];var s,u,l,h,d,b,m,p,y=Math.sqrt,v=Math.min,g=Math.max,x=Math.abs,w=[],M=[[],[]];u=6*t-12*r+6*a,s=-3*t+9*r-9*a+3*c,l=3*r-3*t;for(var P=0;2>P;++P)if(P>0&&(u=6*e-12*n+6*i,s=-3*e+9*n-9*i+3*o,l=3*n-3*e),x(s)<1e-12){if(x(u)<1e-12)continue;h=-l/u,h>0&&1>h&&w.push(h)}else m=u*u-4*l*s,0>m||(p=y(m),d=(-u+p)/(2*s),d>0&&1>d&&w.push(d),b=(-u-p)/(2*s),b>0&&1>b&&w.push(b));for(var C,T,S,O=w.length,F=O;O--;)h=w[O],S=1-h,C=S*S*S*t+3*S*S*h*r+3*S*h*h*a+h*h*h*c,M[0][O]=C,T=S*S*S*e+3*S*S*h*n+3*S*h*h*i+h*h*h*o,M[1][O]=T;M[0][F]=t,M[1][F]=e,M[0][F+1]=c,M[1][F+1]=o;var E=[{x:v.apply(null,M[0]),y:v.apply(null,M[1])},{x:g.apply(null,M[0]),y:g.apply(null,M[1])}];return fabric.cachesBoundsOfCurve&&(fabric.boundsOfCurveCache[f]=E),E}function a(t,r,n){for(var a=n[1],i=n[2],c=n[3],o=n[4],f=n[5],s=n[6],u=n[7],l=e(s-t,u-r,a,i,o,f,c),h=0,d=l.length;d>h;h++)l[h][1]+=t,l[h][2]+=r,l[h][3]+=t,l[h][4]+=r,l[h][5]+=t,l[h][6]+=r;return l}function i(t){var e,r,n,i,c,o,f=0,s=0,u=t.length,l=0,h=0,d=[];for(r=0;u>r;++r){switch(n=!1,e=t[r].slice(0),e[0]){case"l":e[0]="L",e[1]+=f,e[2]+=s;case"L":f=e[1],s=e[2];break;case"h":e[1]+=f;case"H":e[0]="L",e[2]=s,f=e[1];break;case"v":e[1]+=s;case"V":e[0]="L",s=e[1],e[1]=f,e[2]=s;break;case"m":e[0]="M",e[1]+=f,e[2]+=s;case"M":f=e[1],s=e[2],l=e[1],h=e[2];break;case"c":e[0]="C",e[1]+=f,e[2]+=s,e[3]+=f,e[4]+=s,e[5]+=f,e[6]+=s;case"C":c=e[3],o=e[4],f=e[5],s=e[6];break;case"s":e[0]="S",e[1]+=f,e[2]+=s,e[3]+=f,e[4]+=s;case"S":"C"===i?(c=2*f-c,o=2*s-o):(c=f,o=s),f=e[3],s=e[4],e[0]="C",e[5]=e[3],e[6]=e[4],e[3]=e[1],e[4]=e[2],e[1]=c,e[2]=o,c=e[3],o=e[4];break;case"q":e[0]="Q",e[1]+=f,e[2]+=s,e[3]+=f,e[4]+=s;case"Q":c=e[1],o=e[2],f=e[3],s=e[4];break;case"t":e[0]="T",e[1]+=f,e[2]+=s;case"T":"Q"===i?(c=2*f-c,o=2*s-o):(c=f,o=s),e[0]="Q",f=e[1],s=e[2],e[1]=c,e[2]=o,e[3]=f,e[4]=s;break;case"a":e[0]="A",e[6]+=f,e[7]+=s;case"A":n=!0,d=d.concat(a(f,s,e)),f=e[6],s=e[7];break;case"z":case"Z":f=l,s=h}n||d.push(e),i=e[0]}return d}function c(t,e,r,n){return Math.sqrt((r-t)*(r-t)+(n-e)*(n-e))}function o(t){return t*t*t}function f(t){return 3*t*t*(1-t)}function s(t){return 3*t*(1-t)*(1-t)}function u(t){return(1-t)*(1-t)*(1-t)}function l(t,e,r,n,a,i,c,l){return function(h){var d=o(h),b=f(h),m=s(h),p=u(h);return{x:c*d+a*b+r*m+t*p,y:l*d+i*b+n*m+e*p}}}function h(t,e,r,n,a,i,c,o){return function(f){var s=1-f,u=3*s*s*(r-t)+6*s*f*(a-r)+3*f*f*(c-a),l=3*s*s*(n-e)+6*s*f*(i-n)+3*f*f*(o-i);return Math.atan2(l,u)}}function d(t){return t*t}function b(t){return 2*t*(1-t)}function m(t){return(1-t)*(1-t)}function p(t,e,r,n,a,i){return function(c){var o=d(c),f=b(c),s=m(c);return{x:a*o+r*f+t*s,y:i*o+n*f+e*s}}}function y(t,e,r,n,a,i){return function(c){var o=1-c,f=2*o*(r-t)+2*c*(a-r),s=2*o*(n-e)+2*c*(i-n);return Math.atan2(s,f)}}function v(t,e,r){var n,a,i={x:e,y:r},o=0;for(a=1;100>=a;a+=1)n=t(a/100),o+=c(i.x,i.y,n.x,n.y),i=n;return o}function g(t,e){for(var r,n,a,i=0,o=0,f=t.iterator,s={x:t.x,y:t.y},u=.01,l=t.angleFinder;e>o&&u>1e-4;)r=f(i),a=i,n=c(s.x,s.y,r.x,r.y),n+o>e?(i-=u,u/=2):(s=r,i+=u,o+=n);return r.angle=l(a),r}function x(t){for(var e,r,n,a,i=0,o=t.length,f=0,s=0,u=0,d=0,b=[],m=0;o>m;m++){switch(e=t[m],n={x:f,y:s,command:e[0]},e[0]){case"M":n.length=0,u=f=e[1],d=s=e[2];break;case"L":n.length=c(f,s,e[1],e[2]),f=e[1],s=e[2];break;case"C":r=l(f,s,e[1],e[2],e[3],e[4],e[5],e[6]),a=h(f,s,e[1],e[2],e[3],e[4],e[5],e[6]),n.iterator=r,n.angleFinder=a,n.length=v(r,f,s),f=e[5],s=e[6];break;case"Q":r=p(f,s,e[1],e[2],e[3],e[4]),a=y(f,s,e[1],e[2],e[3],e[4]),n.iterator=r,n.angleFinder=a,n.length=v(r,f,s),f=e[3],s=e[4];break;case"Z":case"z":n.destX=u,n.destY=d,n.length=c(f,s,u,d),f=u,s=d}i+=n.length,b.push(n)}return b.push({length:i,x:f,y:s}),b}function w(t,e,r){r||(r=x(t));for(var n=0;e-r[n].length>0&&nm;m++){e=i[m],a=e.slice(1).trim(),o.length=0;var y=e.charAt(0);if(b=[y],"a"===y.toLowerCase())for(var v;v=d.exec(a);)for(var g=1;gg;g++)r=parseFloat(o[g]),isNaN(r)||b.push(r);var w=T[y.toLowerCase()],M=S[y]||y;if(b.length-1>w)for(var P=1,C=b.length;C>P;P+=w)c.push([y].concat(b.slice(P,P+w))),y=M;else c.push(b)}return c}function P(t,e){var r,n=[],a=new fabric.Point(t[0].x,t[0].y),i=new fabric.Point(t[1].x,t[1].y),c=t.length,o=1,f=0,s=c>2;for(e=e||0,s&&(o=t[2].xr;r++){if(!a.eq(i)){var u=a.midPointFrom(i);n.push(["Q",a.x,a.y,u.x,u.y])}a=t[r],r+1t[r-2].x?1:a.x===t[r-2].x?0:-1,f=a.y>t[r-2].y?1:a.y===t[r-2].y?0:-1),n.push(["L",a.x+o*e,a.y+f*e]),n}function C(t,e,r){return r&&(e=fabric.util.multiplyTransformMatrices(e,[1,0,0,1,-r.x,-r.y])),t.map(function(t){for(var r=t.slice(0),n={},a=1;aa;a++)n[a]=r.length?t[a][e].apply(t[a],r):t[a][e].call(t[a]);return n}function e(t,e){return a(t,e,function(t,e){return t>=e})}function r(t,e){return a(t,e,function(t,e){return e>t})}function n(t,e){for(var r=t.length;r--;)t[r]=e;return t}function a(t,e,r){if(t&&0!==t.length){var n=t.length-1,a=e?t[n][e]:t[n];if(e)for(;n--;)r(t[n][e],a)&&(a=t[n][e]);else for(;n--;)r(t[n],a)&&(a=t[n]);return a}}var i=Array.prototype.slice;fabric.util.array={fill:n,invoke:t,min:r,max:e}}();!function(){function t(e,r,n){if(n)if(!fabric.isLikelyNode&&r instanceof Element)e=r;else if(r instanceof Array){e=[];for(var a=0,i=r.length;i>a;a++)e[a]=t({},r[a],n)}else if(r&&"object"==typeof r)for(var c in r)"canvas"===c||"group"===c?e[c]=null:r.hasOwnProperty(c)&&(e[c]=t({},r[c],n));else e=r;else for(var c in r)e[c]=r[c];return e}function e(e,r){return t({},e,r)}fabric.util.object={extend:t,clone:e},fabric.util.object.extend(fabric.util,fabric.Observable)}();!function(){function t(t){return t.replace(/-+(.)?/g,function(t,e){return e?e.toUpperCase():""})}function e(t,e){return t.charAt(0).toUpperCase()+(e?t.slice(1):t.slice(1).toLowerCase())}function r(t){return t.replace(/&/g,"&").replace(/"/g,""").replace(/'/g,"'").replace(//g,">")}function n(t){var e,r=0,n=[];for(r=0,e;rr||r>57343)return t.charAt(e);if(r>=55296&&56319>=r){if(t.length<=e+1)throw"High surrogate without following low surrogate";var n=t.charCodeAt(e+1);if(56320>n||n>57343)throw"High surrogate without following low surrogate";return t.charAt(e)+t.charAt(e+1)}if(0===e)throw"Low surrogate without preceding high surrogate";var a=t.charCodeAt(e-1);if(55296>a||a>56319)throw"Low surrogate without preceding high surrogate";return!1}fabric.util.string={camelize:t,capitalize:e,escapeXml:r,graphemeSplit:n}}();!function(){function t(){}function e(t){for(var e=null,r=this;r.constructor.superclass;){var i=r.constructor.superclass.prototype[t];if(r[t]!==i){e=i;break}r=r.constructor.superclass.prototype}return e?arguments.length>1?e.apply(this,n.call(arguments,1)):e.call(this):console.log("tried to callSuper "+t+", method not found in prototype chain",this)}function r(){function r(){this.initialize.apply(this,arguments)}var a=null,c=n.call(arguments,0);"function"==typeof c[0]&&(a=c.shift()),r.superclass=a,r.subclasses=[],a&&(t.prototype=a.prototype,r.prototype=new t,a.subclasses.push(r));for(var f=0,u=c.length;u>f;f++)o(r,c[f],a);return r.prototype.initialize||(r.prototype.initialize=i),r.prototype.constructor=r,r.prototype.callSuper=e,r}var n=Array.prototype.slice,i=function(){},a=function(){for(var t in{toString:1})if("toString"===t)return!1;return!0}(),o=function(t,e,r){for(var n in e)t.prototype[n]=n in t.prototype&&"function"==typeof t.prototype[n]&&(e[n]+"").indexOf("callSuper")>-1?function(t){return function(){var n=this.constructor.superclass;this.constructor.superclass=r;var i=e[t].apply(this,arguments);return this.constructor.superclass=n,"initialize"!==t?i:void 0}}(n):e[n],a&&(e.toString!==Object.prototype.toString&&(t.prototype.toString=e.toString),e.valueOf!==Object.prototype.valueOf&&(t.prototype.valueOf=e.valueOf))};fabric.util.createClass=r}();!function(){function t(t){var e=t.changedTouches;return e&&e[0]?e[0]:t}var e=!!fabric.document.createElement("div").attachEvent,r=["touchstart","touchmove","touchend"];fabric.util.addListener=function(t,r,n,i){t&&t.addEventListener(r,n,e?!1:i)},fabric.util.removeListener=function(t,r,n,i){t&&t.removeEventListener(r,n,e?!1:i)},fabric.util.getPointer=function(e){var r=e.target,n=fabric.util.getScrollLeftTop(r),i=t(e);return{x:i.clientX+n.left,y:i.clientY+n.top}},fabric.util.isTouchEvent=function(t){return r.indexOf(t.type)>-1||"touch"===t.pointerType}}();!function(){function t(t,e){var r=t.style;if(!r)return t;if("string"==typeof e)return t.style.cssText+=";"+e,e.indexOf("opacity")>-1?a(t,e.match(/opacity:\s*(\d?\.?\d*)/)[1]):t;for(var n in e)if("opacity"===n)a(t,e[n]);else{var i="float"===n||"cssFloat"===n?"undefined"==typeof r.styleFloat?"cssFloat":"styleFloat":n;r.setProperty(i,e[n])}return t}var e=fabric.document.createElement("div"),r="string"==typeof e.style.opacity,n="string"==typeof e.style.filter,i=/alpha\s*\(\s*opacity\s*=\s*([^\)]+)\)/,a=function(t){return t};r?a=function(t,e){return t.style.opacity=e,t}:n&&(a=function(t,e){var r=t.style;return t.currentStyle&&!t.currentStyle.hasLayout&&(r.zoom=1),i.test(r.filter)?(e=e>=.9999?"":"alpha(opacity="+100*e+")",r.filter=r.filter.replace(i,e)):r.filter+=" alpha(opacity="+100*e+")",t}),fabric.util.setStyle=t}();!function(){function t(t){return"string"==typeof t?fabric.document.getElementById(t):t}function e(t,e){var r=fabric.document.createElement(t);for(var n in e)"class"===n?r.className=e[n]:"for"===n?r.htmlFor=e[n]:r.setAttribute(n,e[n]);return r}function r(t,e){t&&-1===(" "+t.className+" ").indexOf(" "+e+" ")&&(t.className+=(t.className?" ":"")+e)}function n(t,r,n){return"string"==typeof r&&(r=e(r,n)),t.parentNode&&t.parentNode.replaceChild(r,t),r.appendChild(t),r}function i(t){for(var e=0,r=0,n=fabric.document.documentElement,i=fabric.document.body||{scrollLeft:0,scrollTop:0};t&&(t.parentNode||t.host)&&(t=t.parentNode||t.host,t===fabric.document?(e=i.scrollLeft||n.scrollLeft||0,r=i.scrollTop||n.scrollTop||0):(e+=t.scrollLeft||0,r+=t.scrollTop||0),1!==t.nodeType||"fixed"!==t.style.position););return{left:e,top:r}}function a(t){var e,r,n=t&&t.ownerDocument,a={left:0,top:0},o={left:0,top:0},c={borderLeftWidth:"left",borderTopWidth:"top",paddingLeft:"left",paddingTop:"top"};if(!n)return o;for(var l in c)o[c[l]]+=parseInt(h(t,l),10)||0;return e=n.documentElement,"undefined"!=typeof t.getBoundingClientRect&&(a=t.getBoundingClientRect()),r=i(t),{left:a.left+r.left-(e.clientLeft||0)+o.left,top:a.top+r.top-(e.clientTop||0)+o.top}}function o(t){var e=fabric.jsdomImplForWrapper(t);return e._canvas||e._image}function c(t){if(fabric.isLikelyNode){var e=fabric.jsdomImplForWrapper(t);e&&(e._image=null,e._canvas=null,e._currentSrc=null,e._attributes=null,e._classList=null)}}function l(t,e){t.imageSmoothingEnabled=t.imageSmoothingEnabled||t.webkitImageSmoothingEnabled||t.mozImageSmoothingEnabled||t.msImageSmoothingEnabled||t.oImageSmoothingEnabled,t.imageSmoothingEnabled=e}var f,u=Array.prototype.slice,s=function(t){return u.call(t,0)};try{f=s(fabric.document.childNodes)instanceof Array}catch(d){}f||(s=function(t){for(var e=new Array(t.length),r=t.length;r--;)e[r]=t[r];return e});var h;h=fabric.document.defaultView&&fabric.document.defaultView.getComputedStyle?function(t,e){var r=fabric.document.defaultView.getComputedStyle(t,null);return r?r[e]:void 0}:function(t,e){var r=t.style[e];return!r&&t.currentStyle&&(r=t.currentStyle[e]),r},function(){function t(t){return"undefined"!=typeof t.onselectstart&&(t.onselectstart=fabric.util.falseFunction),n?t.style[n]="none":"string"==typeof t.unselectable&&(t.unselectable="on"),t}function e(t){return"undefined"!=typeof t.onselectstart&&(t.onselectstart=null),n?t.style[n]="":"string"==typeof t.unselectable&&(t.unselectable=""),t}var r=fabric.document.documentElement.style,n="userSelect"in r?"userSelect":"MozUserSelect"in r?"MozUserSelect":"WebkitUserSelect"in r?"WebkitUserSelect":"KhtmlUserSelect"in r?"KhtmlUserSelect":"";fabric.util.makeElementUnselectable=t,fabric.util.makeElementSelectable=e}(),fabric.util.setImageSmoothing=l,fabric.util.getById=t,fabric.util.toArray=s,fabric.util.addClass=r,fabric.util.makeElement=e,fabric.util.wrapElement=n,fabric.util.getScrollLeftTop=i,fabric.util.getElementOffset=a,fabric.util.getNodeCanvas=o,fabric.util.cleanUpJsdomNode=c}();!function(){function t(t,e){return t+(/\?/.test(t)?"&":"?")+e}function e(){}function r(r,n){n||(n={});var i=n.method?n.method.toUpperCase():"GET",a=n.onComplete||function(){},o=new fabric.window.XMLHttpRequest,c=n.body||n.parameters;return o.onreadystatechange=function(){4===o.readyState&&(a(o),o.onreadystatechange=e)},"GET"===i&&(c=null,"string"==typeof n.parameters&&(r=t(r,n.parameters))),o.open(i,r,!0),("POST"===i||"PUT"===i)&&o.setRequestHeader("Content-Type","application/x-www-form-urlencoded"),o.send(c),o}fabric.util.request=r}();fabric.log=console.log,fabric.warn=console.warn;!function(){function t(){return!1}function e(t,e,r,n){return-r*Math.cos(t/n*(Math.PI/2))+r+e}function r(r){r||(r={});var i,c=!1,u=function(){var t=fabric.runningAnimations.indexOf(i);return t>-1&&fabric.runningAnimations.splice(t,1)[0]};return i=a(o(r),{cancel:function(){return c=!0,u()},currentValue:"startValue"in r?r.startValue:0,completionRate:0,durationRate:0}),fabric.runningAnimations.push(i),n(function(a){var o,f=a||+new Date,l=r.duration||500,s=f+l,d=r.onChange||t,h=r.abort||t,p=r.onComplete||t,b=r.easing||e,m="startValue"in r?r.startValue.length>0:!1,y="startValue"in r?r.startValue:0,g="endValue"in 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e=this.findAnimationsByTarget(t);return e.forEach(function(t){t.cancel()}),e},findAnimationIndex:function(t){return this.indexOf(this.findAnimation(t))},findAnimation:function(t){return this.find(function(e){return e.cancel===t})},findAnimationsByTarget:function(t){return t?this.filter(function(e){return e.target===t}):[]}});var u=fabric.window.requestAnimationFrame||fabric.window.webkitRequestAnimationFrame||fabric.window.mozRequestAnimationFrame||fabric.window.oRequestAnimationFrame||fabric.window.msRequestAnimationFrame||function(t){return fabric.window.setTimeout(t,1e3/60)},f=fabric.window.cancelAnimationFrame||fabric.window.clearTimeout;fabric.util.animate=r,fabric.util.requestAnimFrame=n,fabric.util.cancelAnimFrame=i,fabric.runningAnimations=c}();!function(){function t(t,e,r){var n="rgba("+parseInt(t[0]+r*(e[0]-t[0]),10)+","+parseInt(t[1]+r*(e[1]-t[1]),10)+","+parseInt(t[2]+r*(e[2]-t[2]),10);return n+=","+(t&&e?parseFloat(t[3]+r*(e[3]-t[3])):1),n+=")"}function e(e,r,n,i){var 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g.parseSVGDocument(i.documentElement,function(t,r,n,i){e&&e(t,r,n,i)},r,n):(e&&e(null),!1)}t=t.replace(/^\n\s*/,"").trim(),new g.util.request(t,{method:"get",onComplete:i})},loadSVGFromString:function(t,e,r,n){var i=new g.window.DOMParser,a=i.parseFromString(t.trim(),"text/xml");g.parseSVGDocument(a.documentElement,function(t,r,n,i){e(t,r,n,i)},r,n)}})}("undefined"!=typeof exports?exports:this);fabric.ElementsParser=function(t,e,r,n,i,a){this.elements=t,this.callback=e,this.options=r,this.reviver=n,this.svgUid=r&&r.svgUid||0,this.parsingOptions=i,this.regexUrl=/^url\(['"]?#([^'"]+)['"]?\)/g,this.doc=a},function(t){t.parse=function(){this.instances=new Array(this.elements.length),this.numElements=this.elements.length,this.createObjects()},t.createObjects=function(){var t=this;this.elements.forEach(function(e,r){e.setAttribute("svgUid",t.svgUid),t.createObject(e,r)})},t.findTag=function(t){return fabric[fabric.util.string.capitalize(t.tagName.replace("svg:",""))]},t.createObject=function(t,e){var r=this.findTag(t);if(r&&r.fromElement)try{r.fromElement(t,this.createCallback(e,t),this.options)}catch(n){fabric.log(n)}else this.checkIfDone()},t.createCallback=function(t,e){var r=this;return function(n){var i;r.resolveGradient(n,e,"fill"),r.resolveGradient(n,e,"stroke"),n instanceof fabric.Image&&n._originalElement&&(i=n.parsePreserveAspectRatioAttribute(e)),n._removeTransformMatrix(i),r.resolveClipPath(n,e),r.reviver&&r.reviver(e,n),r.instances[t]=n,r.checkIfDone()}},t.extractPropertyDefinition=function(t,e,r){var n=t[e],i=this.regexUrl;if(i.test(n)){i.lastIndex=0;var a=i.exec(n)[1];return i.lastIndex=0,fabric[r][this.svgUid][a]}},t.resolveGradient=function(t,e,r){var n=this.extractPropertyDefinition(t,r,"gradientDefs");if(n){var i=e.getAttribute(r+"-opacity"),a=fabric.Gradient.fromElement(n,t,i,this.options);t.set(r,a)}},t.createClipPathCallback=function(t,e){return function(t){t._removeTransformMatrix(),t.fillRule=t.clipRule,e.push(t)}},t.resolveClipPath=function(t,e){var r,n,i,a,o,c,s=this.extractPropertyDefinition(t,"clipPath","clipPaths");if(s){a=[],i=fabric.util.invertTransform(t.calcTransformMatrix());for(var u=s[0].parentNode,l=e;l.parentNode&&l.getAttribute("clip-path")!==t.clipPath;)l=l.parentNode;l.parentNode.appendChild(u);for(var f=0;ft.x&&this.y>t.y},gte:function(t){return this.x>=t.x&&this.y>=t.y},lerp:function(t,r){return"undefined"==typeof r&&(r=.5),r=Math.max(Math.min(1,r),0),new e(this.x+(t.x-this.x)*r,this.y+(t.y-this.y)*r)},distanceFrom:function(t){var e=this.x-t.x,r=this.y-t.y;return Math.sqrt(e*e+r*r)},midPointFrom:function(t){return this.lerp(t)},min:function(t){return new e(Math.min(this.x,t.x),Math.min(this.y,t.y))},max:function(t){return new e(Math.max(this.x,t.x),Math.max(this.y,t.y))},toString:function(){return this.x+","+this.y},setXY:function(t,e){return this.x=t,this.y=e,this},setX:function(t){return this.x=t,this},setY:function(t){return this.y=t,this},setFromPoint:function(t){return this.x=t.x,this.y=t.y,this},swap:function(t){var e=this.x,r=this.y;this.x=t.x,this.y=t.y,t.x=e,t.y=r},clone:function(){return new e(this.x,this.y)}}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";function e(t){this.status=t,this.points=[]}var n=t.fabric||(t.fabric={});return n.Intersection?void n.warn("fabric.Intersection is already defined"):(n.Intersection=e,n.Intersection.prototype={constructor:e,appendPoint:function(t){return this.points.push(t),this},appendPoints:function(t){return this.points=this.points.concat(t),this}},n.Intersection.intersectLineLine=function(t,r,i,a){var o,s=(a.x-i.x)*(t.y-i.y)-(a.y-i.y)*(t.x-i.x),c=(r.x-t.x)*(t.y-i.y)-(r.y-t.y)*(t.x-i.x),u=(a.y-i.y)*(r.x-t.x)-(a.x-i.x)*(r.y-t.y);if(0!==u){var l=s/u,f=c/u;l>=0&&1>=l&&f>=0&&1>=f?(o=new e("Intersection"),o.appendPoint(new n.Point(t.x+l*(r.x-t.x),t.y+l*(r.y-t.y)))):o=new e}else o=new e(0===s||0===c?"Coincident":"Parallel");return o},n.Intersection.intersectLinePolygon=function(t,n,r){var i,a,o,s,c=new e,u=r.length;for(s=0;u>s;s++)i=r[s],a=r[(s+1)%u],o=e.intersectLineLine(t,n,i,a),c.appendPoints(o.points);return c.points.length>0&&(c.status="Intersection"),c},n.Intersection.intersectPolygonPolygon=function(t,n){var r,i=new e,a=t.length;for(r=0;a>r;r++){var o=t[r],s=t[(r+1)%a],c=e.intersectLinePolygon(o,s,n);i.appendPoints(c.points)}return i.points.length>0&&(i.status="Intersection"),i},void(n.Intersection.intersectPolygonRectangle=function(t,r,i){var a=r.min(i),o=r.max(i),s=new n.Point(o.x,a.y),c=new n.Point(a.x,o.y),u=e.intersectLinePolygon(a,s,t),l=e.intersectLinePolygon(s,o,t),f=e.intersectLinePolygon(o,c,t),h=e.intersectLinePolygon(c,a,t),d=new e;return d.appendPoints(u.points),d.appendPoints(l.points),d.appendPoints(f.points),d.appendPoints(h.points),d.points.length>0&&(d.status="Intersection"),d}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";function e(t){t?this._tryParsingColor(t):this.setSource([0,0,0,1])}function r(t,e,r){return 0>r&&(r+=1),r>1&&(r-=1),1/6>r?t+6*(e-t)*r:.5>r?e:2/3>r?t+(e-t)*(2/3-r)*6:t}var n=t.fabric||(t.fabric={});return n.Color?void n.warn("fabric.Color is already defined."):(n.Color=e,n.Color.prototype={_tryParsingColor:function(t){var r;t in e.colorNameMap&&(t=e.colorNameMap[t]),"transparent"===t&&(r=[255,255,255,0]),r||(r=e.sourceFromHex(t)),r||(r=e.sourceFromRgb(t)),r||(r=e.sourceFromHsl(t)),r||(r=[0,0,0,1]),r&&this.setSource(r)},_rgbToHsl:function(t,e,r){t/=255,e/=255,r/=255;var i,a,o,s=n.util.array.max([t,e,r]),c=n.util.array.min([t,e,r]);if(o=(s+c)/2,s===c)i=a=0;else{var u=s-c;switch(a=o>.5?u/(2-s-c):u/(s+c),s){case t:i=(e-r)/u+(r>e?6:0);break;case e:i=(r-t)/u+2;break;case r:i=(t-e)/u+4}i/=6}return[Math.round(360*i),Math.round(100*a),Math.round(100*o)]},getSource:function(){return this._source},setSource:function(t){this._source=t},toRgb:function(){var t=this.getSource();return"rgb("+t[0]+","+t[1]+","+t[2]+")"},toRgba:function(){var t=this.getSource();return"rgba("+t[0]+","+t[1]+","+t[2]+","+t[3]+")"},toHsl:function(){var t=this.getSource(),e=this._rgbToHsl(t[0],t[1],t[2]);return"hsl("+e[0]+","+e[1]+"%,"+e[2]+"%)"},toHsla:function(){var t=this.getSource(),e=this._rgbToHsl(t[0],t[1],t[2]);return"hsla("+e[0]+","+e[1]+"%,"+e[2]+"%,"+t[3]+")"},toHex:function(){var t,e,r,n=this.getSource();return t=n[0].toString(16),t=1===t.length?"0"+t:t,e=n[1].toString(16),e=1===e.length?"0"+e:e,r=n[2].toString(16),r=1===r.length?"0"+r:r,t.toUpperCase()+e.toUpperCase()+r.toUpperCase()},toHexa:function(){var t,e=this.getSource();return t=Math.round(255*e[3]),t=t.toString(16),t=1===t.length?"0"+t:t,this.toHex()+t.toUpperCase()},getAlpha:function(){return this.getSource()[3]},setAlpha:function(t){var e=this.getSource();return e[3]=t,this.setSource(e),this},toGrayscale:function(){var t=this.getSource(),e=parseInt((.3*t[0]+.59*t[1]+.11*t[2]).toFixed(0),10),r=t[3];return this.setSource([e,e,e,r]),this},toBlackWhite:function(t){var e=this.getSource(),r=(.3*e[0]+.59*e[1]+.11*e[2]).toFixed(0),n=e[3];return t=t||127,r=Number(r)r;r++)n.push(Math.round(o[r]*(1-a)+s[r]*a));return n[3]=i,this.setSource(n),this}},n.Color.reRGBa=/^rgba?\(\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*(?:\s*,\s*((?:\d*\.?\d+)?)\s*)?\)$/i,n.Color.reHSLa=/^hsla?\(\s*(\d{1,3})\s*,\s*(\d{1,3}\%)\s*,\s*(\d{1,3}\%)\s*(?:\s*,\s*(\d+(?:\.\d+)?)\s*)?\)$/i,n.Color.reHex=/^#?([0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{4}|[0-9a-f]{3})$/i,n.Color.colorNameMap={aliceblue:"#F0F8FF",antiquewhite:"#FAEBD7",aqua:"#00FFFF",aquamarine:"#7FFFD4",azure:"#F0FFFF",beige:"#F5F5DC",bisque:"#FFE4C4",black:"#000000",blanchedalmond:"#FFEBCD",blue:"#0000FF",blueviolet:"#8A2BE2",brown:"#A52A2A",burlywood:"#DEB887",cadetblue:"#5F9EA0",chartreuse:"#7FFF00",chocolate:"#D2691E",coral:"#FF7F50",cornflowerblue:"#6495ED",cornsilk:"#FFF8DC",crimson:"#DC143C",cyan:"#00FFFF",darkblue:"#00008B",darkcyan:"#008B8B",darkgoldenrod:"#B8860B",darkgray:"#A9A9A9",darkgrey:"#A9A9A9",darkgreen:"#006400",darkkhaki:"#BDB76B",darkmagenta:"#8B008B",darkolivegreen:"#556B2F",darkorange:"#FF8C00",darkorchid:"#9932CC",darkred:"#8B0000",darksalmon:"#E9967A",darkseagreen:"#8FBC8F",darkslateblue:"#483D8B",darkslategray:"#2F4F4F",darkslategrey:"#2F4F4F",darkturquoise:"#00CED1",darkviolet:"#9400D3",deeppink:"#FF1493",deepskyblue:"#00BFFF",dimgray:"#696969",dimgrey:"#696969",dodgerblue:"#1E90FF",firebrick:"#B22222",floralwhite:"#FFFAF0",forestgreen:"#228B22",fuchsia:"#FF00FF",gainsboro:"#DCDCDC",ghostwhite:"#F8F8FF",gold:"#FFD700",goldenrod:"#DAA520",gray:"#808080",grey:"#808080",green:"#008000",greenyellow:"#ADFF2F",honeydew:"#F0FFF0",hotpink:"#FF69B4",indianred:"#CD5C5C",indigo:"#4B0082",ivory:"#FFFFF0",khaki:"#F0E68C",lavender:"#E6E6FA",lavenderblush:"#FFF0F5",lawngreen:"#7CFC00",lemonchiffon:"#FFFACD",lightblue:"#ADD8E6",lightcoral:"#F08080",lightcyan:"#E0FFFF",lightgoldenrodyellow:"#FAFAD2",lightgray:"#D3D3D3",lightgrey:"#D3D3D3",lightgreen:"#90EE90",lightpink:"#FFB6C1",lightsalmon:"#FFA07A",lightseagreen:"#20B2AA",lightskyblue:"#87CEFA",lightslategray:"#778899",lightslategrey:"#778899",lightsteelblue:"#B0C4DE",lightyellow:"#FFFFE0",lime:"#00FF00",limegreen:"#32CD32",linen:"#FAF0E6",magenta:"#FF00FF",maroon:"#800000",mediumaquamarine:"#66CDAA",mediumblue:"#0000CD",mediumorchid:"#BA55D3",mediumpurple:"#9370DB",mediumseagreen:"#3CB371",mediumslateblue:"#7B68EE",mediumspringgreen:"#00FA9A",mediumturquoise:"#48D1CC",mediumvioletred:"#C71585",midnightblue:"#191970",mintcream:"#F5FFFA",mistyrose:"#FFE4E1",moccasin:"#FFE4B5",navajowhite:"#FFDEAD",navy:"#000080",oldlace:"#FDF5E6",olive:"#808000",olivedrab:"#6B8E23",orange:"#FFA500",orangered:"#FF4500",orchid:"#DA70D6",palegoldenrod:"#EEE8AA",palegreen:"#98FB98",paleturquoise:"#AFEEEE",palevioletred:"#DB7093",papayawhip:"#FFEFD5",peachpuff:"#FFDAB9",peru:"#CD853F",pink:"#FFC0CB",plum:"#DDA0DD",powderblue:"#B0E0E6",purple:"#800080",rebeccapurple:"#663399",red:"#FF0000",rosybrown:"#BC8F8F",royalblue:"#4169E1",saddlebrown:"#8B4513",salmon:"#FA8072",sandybrown:"#F4A460",seagreen:"#2E8B57",seashell:"#FFF5EE",sienna:"#A0522D",silver:"#C0C0C0",skyblue:"#87CEEB",slateblue:"#6A5ACD",slategray:"#708090",slategrey:"#708090",snow:"#FFFAFA",springgreen:"#00FF7F",steelblue:"#4682B4",tan:"#D2B48C",teal:"#008080",thistle:"#D8BFD8",tomato:"#FF6347",turquoise:"#40E0D0",violet:"#EE82EE",wheat:"#F5DEB3",white:"#FFFFFF",whitesmoke:"#F5F5F5",yellow:"#FFFF00",yellowgreen:"#9ACD32"},n.Color.fromRgb=function(t){return e.fromSource(e.sourceFromRgb(t))},n.Color.sourceFromRgb=function(t){var r=t.match(e.reRGBa);if(r){var n=parseInt(r[1],10)/(/%$/.test(r[1])?100:1)*(/%$/.test(r[1])?255:1),i=parseInt(r[2],10)/(/%$/.test(r[2])?100:1)*(/%$/.test(r[2])?255:1),a=parseInt(r[3],10)/(/%$/.test(r[3])?100:1)*(/%$/.test(r[3])?255:1);return[parseInt(n,10),parseInt(i,10),parseInt(a,10),r[4]?parseFloat(r[4]):1]}},n.Color.fromRgba=e.fromRgb,n.Color.fromHsl=function(t){return e.fromSource(e.sourceFromHsl(t))},n.Color.sourceFromHsl=function(t){var n=t.match(e.reHSLa);if(n){var i,a,o,s=(parseFloat(n[1])%360+360)%360/360,c=parseFloat(n[2])/(/%$/.test(n[2])?100:1),u=parseFloat(n[3])/(/%$/.test(n[3])?100:1);if(0===c)i=a=o=u;else{var l=.5>=u?u*(c+1):u+c-u*c,f=2*u-l;i=r(f,l,s+1/3),a=r(f,l,s),o=r(f,l,s-1/3)}return[Math.round(255*i),Math.round(255*a),Math.round(255*o),n[4]?parseFloat(n[4]):1]}},n.Color.fromHsla=e.fromHsl,n.Color.fromHex=function(t){return e.fromSource(e.sourceFromHex(t))},n.Color.sourceFromHex=function(t){if(t.match(e.reHex)){var r=t.slice(t.indexOf("#")+1),n=3===r.length||4===r.length,i=8===r.length||4===r.length,a=n?r.charAt(0)+r.charAt(0):r.substring(0,2),o=n?r.charAt(1)+r.charAt(1):r.substring(2,4),s=n?r.charAt(2)+r.charAt(2):r.substring(4,6),c=i?n?r.charAt(3)+r.charAt(3):r.substring(6,8):"FF";return[parseInt(a,16),parseInt(o,16),parseInt(s,16),parseFloat((parseInt(c,16)/255).toFixed(2))]}},void(n.Color.fromSource=function(t){var r=new e;return r.setSource(t),r}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";function e(t,e){var r=t.angle+j(Math.atan2(e.y,e.x))+360;return Math.round(r%360/45)}function r(t,e){var r=e.transform.target,n=r.canvas,i=D.util.object.clone(e);i.target=r,n&&n.fire("object:"+t,i),r.fire(t,e)}function n(t,e){var r=e.canvas,n=r.uniScaleKey,i=t[n];return r.uniformScaling&&!i||!r.uniformScaling&&i}function i(t){return t.originX===R&&t.originY===R}function a(t,e,r){var n=t.lockScalingX,i=t.lockScalingY;return n&&i?!0:!e&&(n||i)&&r?!0:n&&"x"===e?!0:i&&"y"===e?!0:!1}function o(t,r,i){var o="not-allowed",s=n(t,i),c="";if(0!==r.x&&0===r.y?c="x":0===r.x&&0!==r.y&&(c="y"),a(i,c,s))return o;var u=e(i,r);return O[u]+"-resize"}function s(t,r,n){var i="not-allowed";if(0!==r.x&&n.lockSkewingY)return i;if(0!==r.y&&n.lockSkewingX)return i;var a=e(n,r)%4;return T[a]+"-resize"}function c(t,e,r){return t[r.canvas.altActionKey]?I.skewCursorStyleHandler(t,e,r):I.scaleCursorStyleHandler(t,e,r)}function u(t,e,r){var n=t[r.canvas.altActionKey];return 0===e.x?n?"skewX":"scaleY":0===e.y?n?"skewY":"scaleX":void 0}function l(t,e,r){return r.lockRotation?"not-allowed":e.cursorStyle}function f(t,e,r,n){return{e:t,transform:e,pointer:{x:r,y:n}}}function h(t){return function(e,r,n,i){var a=r.target,o=a.getCenterPoint(),s=a.translateToOriginPoint(o,r.originX,r.originY),c=t(e,r,n,i);return a.setPositionByOrigin(s,r.originX,r.originY),c}}function d(t,e){return function(n,i,a,o){var s=e(n,i,a,o);return s&&r(t,f(n,i,a,o)),s}}function g(t,e,r,n,i){var a=t.target,o=a.controls[t.corner],s=a.canvas.getZoom(),c=a.padding/s,u=a.toLocalPoint(new D.Point(n,i),e,r);return u.x>=c&&(u.x-=c),u.x<=-c&&(u.x+=c),u.y>=c&&(u.y-=c),u.y<=c&&(u.y+=c),u.x-=o.offsetX,u.y-=o.offsetY,u}function p(t){return t.flipX!==t.flipY}function m(t,e,r,n,i){if(0!==t[e]){var a=t._getTransformedDimensions()[n],o=i/a*t[r];t.set(r,o)}}function b(t,e,r,n){var i,a=e.target,o=a._getTransformedDimensions(0,a.skewY),s=g(e,e.originX,e.originY,r,n),c=Math.abs(2*s.x)-o.x,u=a.skewX;2>c?i=0:(i=j(Math.atan2(c/a.scaleX,o.y/a.scaleY)),e.originX===X&&e.originY===B&&(i=-i),e.originX===N&&e.originY===Y&&(i=-i),p(a)&&(i=-i));var l=u!==i;if(l){var f=a._getTransformedDimensions().y;a.set("skewX",i),m(a,"skewY","scaleY","y",f)}return l}function y(t,e,r,n){var i,a=e.target,o=a._getTransformedDimensions(a.skewX,0),s=g(e,e.originX,e.originY,r,n),c=Math.abs(2*s.y)-o.y,u=a.skewY;2>c?i=0:(i=j(Math.atan2(c/a.scaleY,o.x/a.scaleX)),e.originX===X&&e.originY===B&&(i=-i),e.originX===N&&e.originY===Y&&(i=-i),p(a)&&(i=-i));var l=u!==i;if(l){var f=a._getTransformedDimensions().x;a.set("skewY",i),m(a,"skewX","scaleX","x",f)}return l}function v(t,e,r,n){var i,a=e.target,o=a.skewX,s=e.originY;if(a.lockSkewingX)return!1;if(0===o){var c=g(e,R,R,r,n);i=c.x>0?X:N}else o>0&&(i=s===Y?X:N),0>o&&(i=s===Y?N:X),p(a)&&(i=i===X?N:X);e.originX=i;var u=d("skewing",h(b));return u(t,e,r,n)}function x(t,e,r,n){var i,a=e.target,o=a.skewY,s=e.originX;if(a.lockSkewingY)return!1;if(0===o){var c=g(e,R,R,r,n);i=c.y>0?Y:B}else o>0&&(i=s===X?Y:B),0>o&&(i=s===X?B:Y),p(a)&&(i=i===Y?B:Y);e.originY=i;var u=d("skewing",h(y));return u(t,e,r,n)}function w(t,e,r,n){var i=e,a=i.target,o=a.translateToOriginPoint(a.getCenterPoint(),i.originX,i.originY);if(a.lockRotation)return!1;var s=Math.atan2(i.ey-o.y,i.ex-o.x),c=Math.atan2(n-o.y,r-o.x),u=j(c-s+i.theta),l=!0;if(a.snapAngle>0){var f=a.snapAngle,h=a.snapThreshold||f,d=Math.ceil(u/f)*f,g=Math.floor(u/f)*f;Math.abs(u-g)u&&(u=360+u),u%=360,l=a.angle!==u,a.angle=u,l}function F(t,e,r,o,s){s=s||{};var c,u,l,f,h,d,p=e.target,m=p.lockScalingX,b=p.lockScalingY,y=s.by,v=n(t,p),x=a(p,y,v),w=e.gestureScale;if(x)return!1;if(w)u=e.scaleX*w,l=e.scaleY*w;else{if(c=g(e,e.originX,e.originY,r,o),h="y"!==y?L(c.x):1,d="x"!==y?L(c.y):1,e.signX||(e.signX=h),e.signY||(e.signY=d),p.lockScalingFlip&&(e.signX!==h||e.signY!==d))return!1;if(f=p._getTransformedDimensions(),v&&!y){var F=Math.abs(c.x)+Math.abs(c.y),A=e.original,k=Math.abs(f.x*A.scaleX/p.scaleX)+Math.abs(f.y*A.scaleY/p.scaleY),C=F/k;u=A.scaleX*C,l=A.scaleY*C}else u=Math.abs(c.x*p.scaleX/f.x),l=Math.abs(c.y*p.scaleY/f.y);i(e)&&(u*=2,l*=2),e.signX!==h&&"y"!==y&&(e.originX=_[e.originX],u*=-1,e.signX=h),e.signY!==d&&"x"!==y&&(e.originY=_[e.originY],l*=-1,e.signY=d)}var E=p.scaleX,M=p.scaleY;return y?("x"===y&&p.set("scaleX",u),"y"===y&&p.set("scaleY",l)):(!m&&p.set("scaleX",u),!b&&p.set("scaleY",l)),E!==p.scaleX||M!==p.scaleY}function A(t,e,r,n){return F(t,e,r,n)}function k(t,e,r,n){return F(t,e,r,n,{by:"x"})}function C(t,e,r,n){return F(t,e,r,n,{by:"y"})}function E(t,e,r,n){return t[e.target.canvas.altActionKey]?I.skewHandlerX(t,e,r,n):I.scalingY(t,e,r,n)}function M(t,e,r,n){return t[e.target.canvas.altActionKey]?I.skewHandlerY(t,e,r,n):I.scalingX(t,e,r,n)}function S(t,e,r,n){var a=e.target,o=g(e,e.originX,e.originY,r,n),s=a.strokeWidth/(a.strokeUniform?a.scaleX:1),c=i(e)?2:1,u=a.width,l=Math.abs(o.x*c/a.scaleX)-s;return a.set("width",Math.max(l,0)),u!==l}function P(t,e,n,i){var a=e.target,o=n-e.offsetX,s=i-e.offsetY,c=!a.get("lockMovementX")&&a.left!==o,u=!a.get("lockMovementY")&&a.top!==s;return c&&a.set("left",o),u&&a.set("top",s),(c||u)&&r("moving",f(t,e,n,i)),c||u}var D=t.fabric||(t.fabric={}),O=["e","se","s","sw","w","nw","n","ne","e"],T=["ns","nesw","ew","nwse"],I={},X="left",Y="top",N="right",B="bottom",R="center",_={top:B,bottom:Y,left:N,right:X,center:R},j=D.util.radiansToDegrees,L=Math.sign||function(t){return(t>0)-(0>t)||+t};I.scaleCursorStyleHandler=o,I.skewCursorStyleHandler=s,I.scaleSkewCursorStyleHandler=c,I.rotationWithSnapping=d("rotating",h(w)),I.scalingEqually=d("scaling",h(A)),I.scalingX=d("scaling",h(k)),I.scalingY=d("scaling",h(C)),I.scalingYOrSkewingX=E,I.scalingXOrSkewingY=M,I.changeWidth=d("resizing",h(S)),I.skewHandlerX=v,I.skewHandlerY=x,I.dragHandler=P,I.scaleOrSkewActionName=u,I.rotationStyleHandler=l,I.fireEvent=r,I.wrapWithFixedAnchor=h,I.wrapWithFireEvent=d,I.getLocalPoint=g,D.controlsUtils=I}("undefined"!=typeof exports?exports:this);!function(t){"use strict";function e(t,e,r,n,i){n=n||{};var a,o=this.sizeX||n.cornerSize||i.cornerSize,s=this.sizeY||n.cornerSize||i.cornerSize,c="undefined"!=typeof n.transparentCorners?n.transparentCorners:i.transparentCorners,u=c?"stroke":"fill",l=!c&&(n.cornerStrokeColor||i.cornerStrokeColor),f=e,h=r;t.save(),t.fillStyle=n.cornerColor||i.cornerColor,t.strokeStyle=n.cornerStrokeColor||i.cornerStrokeColor,o>s?(a=o,t.scale(1,s/o),h=r*o/s):s>o?(a=s,t.scale(o/s,1),f=e*s/o):a=o,t.lineWidth=1,t.beginPath(),t.arc(f,h,a/2,0,2*Math.PI,!1),t[u](),l&&t.stroke(),t.restore()}function r(t,e,r,n,a){n=n||{};var o=this.sizeX||n.cornerSize||a.cornerSize,s=this.sizeY||n.cornerSize||a.cornerSize,c="undefined"!=typeof n.transparentCorners?n.transparentCorners:a.transparentCorners,u=c?"stroke":"fill",l=!c&&(n.cornerStrokeColor||a.cornerStrokeColor),f=o/2,h=s/2;t.save(),t.fillStyle=n.cornerColor||a.cornerColor,t.strokeStyle=n.cornerStrokeColor||a.cornerStrokeColor,t.lineWidth=1,t.translate(e,r),t.rotate(i(a.angle)),t[u+"Rect"](-f,-h,o,s),l&&t.strokeRect(-f,-h,o,s),t.restore()}var n=t.fabric||(t.fabric={}),i=n.util.degreesToRadians,a=n.controlsUtils;a.renderCircleControl=e,a.renderSquareControl=r}("undefined"!=typeof exports?exports:this);!function(t){"use strict";function e(t){for(var e in t)this[e]=t[e]}var r=t.fabric||(t.fabric={});r.Control=e,r.Control.prototype={visible:!0,actionName:"scale",angle:0,x:0,y:0,offsetX:0,offsetY:0,sizeX:null,sizeY:null,touchSizeX:null,touchSizeY:null,cursorStyle:"crosshair",withConnection:!1,actionHandler:function(){},mouseDownHandler:function(){},mouseUpHandler:function(){},getActionHandler:function(){return this.actionHandler},getMouseDownHandler:function(){return this.mouseDownHandler},getMouseUpHandler:function(){return this.mouseUpHandler},cursorStyleHandler:function(t,e){return e.cursorStyle},getActionName:function(t,e){return e.actionName},getVisibility:function(t,e){var r=t._controlsVisibility;return r&&"undefined"!=typeof r[e]?r[e]:this.visible},setVisibility:function(t){this.visible=t},positionHandler:function(t,e){var n=r.util.transformPoint({x:this.x*t.x+this.offsetX,y:this.y*t.y+this.offsetY},e);return n},calcCornerCoords:function(t,e,n,i,a){var o,s,c,u,l=a?this.touchSizeX:this.sizeX,f=a?this.touchSizeY:this.sizeY;if(l&&f&&l!==f){var h=Math.atan2(f,l),d=Math.sqrt(l*l+f*f)/2,g=h-r.util.degreesToRadians(t),p=Math.PI/2-h-r.util.degreesToRadians(t);o=d*r.util.cos(g),s=d*r.util.sin(g),c=d*r.util.cos(p),u=d*r.util.sin(p)}else{var m=l&&f?l:e;d=.7071067812*m;var g=r.util.degreesToRadians(45-t);o=c=d*r.util.cos(g),s=u=d*r.util.sin(g)}return{tl:{x:n-u,y:i-c},tr:{x:n+o,y:i-s},bl:{x:n-o,y:i+s},br:{x:n+u,y:i+c}}},render:function(t,e,n,i,a){switch(i=i||{},i.cornerStyle||a.cornerStyle){case"circle":r.controlsUtils.renderCircleControl.call(this,t,e,n,i,a);break;default:r.controlsUtils.renderSquareControl.call(this,t,e,n,i,a)}}}}("undefined"!=typeof exports?exports:this);!function(){function t(t,e){var r,n,i,a,o=t.getAttribute("style"),s=t.getAttribute("offset")||0;if(s=parseFloat(s)/(/%$/.test(s)?100:1),s=0>s?0:s>1?1:s,o){var c=o.split(/\s*;\s*/);for(""===c[c.length-1]&&c.pop(),a=c.length;a--;){var l=c[a].split(/\s*:\s*/),u=l[0].trim(),f=l[1].trim();"stop-color"===u?r=f:"stop-opacity"===u&&(i=f)}}return r||(r=t.getAttribute("stop-color")||"rgb(0,0,0)"),i||(i=t.getAttribute("stop-opacity")),r=new fabric.Color(r),n=r.getAlpha(),i=isNaN(parseFloat(i))?1:parseFloat(i),i*=n*e,{offset:s,color:r.toRgb(),opacity:i}}function e(t){return{x1:t.getAttribute("x1")||0,y1:t.getAttribute("y1")||0,x2:t.getAttribute("x2")||"100%",y2:t.getAttribute("y2")||0}}function r(t){return{x1:t.getAttribute("fx")||t.getAttribute("cx")||"50%",y1:t.getAttribute("fy")||t.getAttribute("cy")||"50%",r1:0,x2:t.getAttribute("cx")||"50%",y2:t.getAttribute("cy")||"50%",r2:t.getAttribute("r")||"50%"}}function n(t,e,r,n){var i,a;Object.keys(e).forEach(function(t){i=e[t],"Infinity"===i?a=1:"-Infinity"===i?a=0:(a=parseFloat(e[t],10),"string"==typeof i&&/^(\d+\.\d+)%|(\d+)%$/.test(i)&&(a*=.01,"pixels"===n&&(("x1"===t||"x2"===t||"r2"===t)&&(a*=r.viewBoxWidth||r.width),("y1"===t||"y2"===t)&&(a*=r.viewBoxHeight||r.height)))),e[t]=a})}var i=fabric.util.object.clone;fabric.Gradient=fabric.util.createClass({offsetX:0,offsetY:0,gradientTransform:null,gradientUnits:"pixels",type:"linear",initialize:function(t){t||(t={}),t.coords||(t.coords={});var e,r=this;Object.keys(t).forEach(function(e){r[e]=t[e]}),this.id?this.id+="_"+fabric.Object.__uid++:this.id=fabric.Object.__uid++,e={x1:t.coords.x1||0,y1:t.coords.y1||0,x2:t.coords.x2||0,y2:t.coords.y2||0},"radial"===this.type&&(e.r1=t.coords.r1||0,e.r2=t.coords.r2||0),this.coords=e,this.colorStops=t.colorStops.slice()},addColorStop:function(t){for(var e in t){var r=new fabric.Color(t[e]);this.colorStops.push({offset:parseFloat(e),color:r.toRgb(),opacity:r.getAlpha()})}return this},toObject:function(t){var e={type:this.type,coords:this.coords,colorStops:this.colorStops,offsetX:this.offsetX,offsetY:this.offsetY,gradientUnits:this.gradientUnits,gradientTransform:this.gradientTransform?this.gradientTransform.concat():this.gradientTransform};return fabric.util.populateWithProperties(this,e,t),e},toSVG:function(t,e){var r,n,a,o,s=i(this.coords,!0),e=e||{},c=i(this.colorStops,!0),l=s.r1>s.r2,u=this.gradientTransform?this.gradientTransform.concat():fabric.iMatrix.concat(),f=-this.offsetX,h=-this.offsetY,d=!!e.additionalTransform,p="pixels"===this.gradientUnits?"userSpaceOnUse":"objectBoundingBox";if(c.sort(function(t,e){return t.offset-e.offset}),"objectBoundingBox"===p?(f/=t.width,h/=t.height):(f+=t.width/2,h+=t.height/2),"path"===t.type&&"percentage"!==this.gradientUnits&&(f-=t.pathOffset.x,h-=t.pathOffset.y),u[4]-=f,u[5]-=h,o='id="SVGID_'+this.id+'" gradientUnits="'+p+'"',o+=' gradientTransform="'+(d?e.additionalTransform+" ":"")+fabric.util.matrixToSVG(u)+'" ',"linear"===this.type?a=["\n']:"radial"===this.type&&(a=["\n']),"radial"===this.type){if(l)for(c=c.concat(),c.reverse(),r=0,n=c.length;n>r;r++)c[r].offset=1-c[r].offset;var g=Math.min(s.r1,s.r2);if(g>0){var m=Math.max(s.r1,s.r2),b=g/m;for(r=0,n=c.length;n>r;r++)c[r].offset+=b*(1-c[r].offset)}}for(r=0,n=c.length;n>r;r++){var y=c[r];a.push("\n')}return a.push("linear"===this.type?"\n":"\n"),a.join("")},toLive:function(t){var e,r,n,i=fabric.util.object.clone(this.coords);if(this.type){for("linear"===this.type?e=t.createLinearGradient(i.x1,i.y1,i.x2,i.y2):"radial"===this.type&&(e=t.createRadialGradient(i.x1,i.y1,i.r1,i.x2,i.y2,i.r2)),r=0,n=this.colorStops.length;n>r;r++){var a=this.colorStops[r].color,o=this.colorStops[r].opacity,s=this.colorStops[r].offset;"undefined"!=typeof o&&(a=new fabric.Color(a).setAlpha(o).toRgba()),e.addColorStop(s,a)}return e}}}),fabric.util.object.extend(fabric.Gradient,{fromElement:function(i,a,o,s){var c=parseFloat(o)/(/%$/.test(o)?100:1);c=0>c?0:c>1?1:c,isNaN(c)&&(c=1);var l,u,f,h,d=i.getElementsByTagName("stop"),p="userSpaceOnUse"===i.getAttribute("gradientUnits")?"pixels":"percentage",g=i.getAttribute("gradientTransform")||"",m=[],b=0,y=0;for("linearGradient"===i.nodeName||"LINEARGRADIENT"===i.nodeName?(l="linear",u=e(i)):(l="radial",u=r(i)),f=d.length;f--;)m.push(t(d[f],c));h=fabric.parseTransformAttribute(g),n(a,u,s,p),"pixels"===p&&(b=-a.left,y=-a.top);var v=new fabric.Gradient({id:i.getAttribute("id"),type:l,coords:u,colorStops:m,gradientUnits:p,gradientTransform:h,offsetX:b,offsetY:y});return v}})}();!function(){"use strict";var t=fabric.util.toFixed;fabric.Pattern=fabric.util.createClass({repeat:"repeat",offsetX:0,offsetY:0,crossOrigin:"",patternTransform:null,initialize:function(t,e){if(t||(t={}),this.id=fabric.Object.__uid++,this.setOptions(t),!t.source||t.source&&"string"!=typeof t.source)return void(e&&e(this));var r=this;this.source=fabric.util.createImage(),fabric.util.loadImage(t.source,function(t,n){r.source=t,e&&e(r,n)},null,this.crossOrigin)},toObject:function(e){var r,n,i=fabric.Object.NUM_FRACTION_DIGITS;return"string"==typeof this.source.src?r=this.source.src:"object"==typeof this.source&&this.source.toDataURL&&(r=this.source.toDataURL()),n={type:"pattern",source:r,repeat:this.repeat,crossOrigin:this.crossOrigin,offsetX:t(this.offsetX,i),offsetY:t(this.offsetY,i),patternTransform:this.patternTransform?this.patternTransform.concat():null},fabric.util.populateWithProperties(this,n,e),n},toSVG:function(t){var e="function"==typeof this.source?this.source():this.source,r=e.width/t.width,n=e.height/t.height,i=this.offsetX/t.width,a=this.offsetY/t.height,o="";return("repeat-x"===this.repeat||"no-repeat"===this.repeat)&&(n=1,a&&(n+=Math.abs(a))),("repeat-y"===this.repeat||"no-repeat"===this.repeat)&&(r=1,i&&(r+=Math.abs(i))),e.src?o=e.src:e.toDataURL&&(o=e.toDataURL()),'\n\n\n'},setOptions:function(t){for(var e in t)this[e]=t[e]},toLive:function(t){var e=this.source;if(!e)return"";if("undefined"!=typeof e.src){if(!e.complete)return"";if(0===e.naturalWidth||0===e.naturalHeight)return""}return t.createPattern(e,this.repeat)}})}();!function(t){"use strict";var e=t.fabric||(t.fabric={}),r=e.util.toFixed;return e.Shadow?void e.warn("fabric.Shadow is already defined."):(e.Shadow=e.util.createClass({color:"rgb(0,0,0)",blur:0,offsetX:0,offsetY:0,affectStroke:!1,includeDefaultValues:!0,nonScaling:!1,initialize:function(t){"string"==typeof t&&(t=this._parseShadow(t));for(var r in t)this[r]=t[r];this.id=e.Object.__uid++},_parseShadow:function(t){var r=t.trim(),n=e.Shadow.reOffsetsAndBlur.exec(r)||[],i=r.replace(e.Shadow.reOffsetsAndBlur,"")||"rgb(0,0,0)";return{color:i.trim(),offsetX:parseFloat(n[1],10)||0,offsetY:parseFloat(n[2],10)||0,blur:parseFloat(n[3],10)||0}},toString:function(){return[this.offsetX,this.offsetY,this.blur,this.color].join("px ")},toSVG:function(t){var n=40,i=40,a=e.Object.NUM_FRACTION_DIGITS,o=e.util.rotateVector({x:this.offsetX,y:this.offsetY},e.util.degreesToRadians(-t.angle)),s=20,c=new e.Color(this.color);return t.width&&t.height&&(n=100*r((Math.abs(o.x)+this.blur)/t.width,a)+s,i=100*r((Math.abs(o.y)+this.blur)/t.height,a)+s),t.flipX&&(o.x*=-1),t.flipY&&(o.y*=-1),'\n \n \n \n \n \n \n \n \n\n'},toObject:function(){if(this.includeDefaultValues)return{color:this.color,blur:this.blur,offsetX:this.offsetX,offsetY:this.offsetY,affectStroke:this.affectStroke,nonScaling:this.nonScaling};var t={},r=e.Shadow.prototype;return["color","blur","offsetX","offsetY","affectStroke","nonScaling"].forEach(function(e){this[e]!==r[e]&&(t[e]=this[e])},this),t}}),void(e.Shadow.reOffsetsAndBlur=/(?:\s|^)(-?\d+(?:\.\d*)?(?:px)?(?:\s?|$))?(-?\d+(?:\.\d*)?(?:px)?(?:\s?|$))?(\d+(?:\.\d*)?(?:px)?)?(?:\s?|$)(?:$|\s)/))}("undefined"!=typeof exports?exports:this);!function(){"use strict";if(fabric.StaticCanvas)return void fabric.warn("fabric.StaticCanvas is already defined.");var t=fabric.util.object.extend,e=fabric.util.getElementOffset,r=fabric.util.removeFromArray,i=fabric.util.toFixed,n=fabric.util.transformPoint,a=fabric.util.invertTransform,o=fabric.util.getNodeCanvas,s=fabric.util.createCanvasElement,c=new Error("Could not initialize `canvas` element");fabric.StaticCanvas=fabric.util.createClass(fabric.CommonMethods,{initialize:function(t,e){e||(e={}),this.renderAndResetBound=this.renderAndReset.bind(this),this.requestRenderAllBound=this.requestRenderAll.bind(this),this._initStatic(t,e)},backgroundColor:"",backgroundImage:null,overlayColor:"",overlayImage:null,includeDefaultValues:!0,stateful:!1,renderOnAddRemove:!0,controlsAboveOverlay:!1,allowTouchScrolling:!1,imageSmoothingEnabled:!0,viewportTransform:fabric.iMatrix.concat(),backgroundVpt:!0,overlayVpt:!0,enableRetinaScaling:!0,vptCoords:{},skipOffscreen:!0,clipPath:void 0,_initStatic:function(t,e){var r=this.requestRenderAllBound;this._objects=[],this._createLowerCanvas(t),this._initOptions(e),this.interactive||this._initRetinaScaling(),e.overlayImage&&this.setOverlayImage(e.overlayImage,r),e.backgroundImage&&this.setBackgroundImage(e.backgroundImage,r),e.backgroundColor&&this.setBackgroundColor(e.backgroundColor,r),e.overlayColor&&this.setOverlayColor(e.overlayColor,r),this.calcOffset()},_isRetinaScaling:function(){return fabric.devicePixelRatio>1&&this.enableRetinaScaling},getRetinaScaling:function(){return this._isRetinaScaling()?Math.max(1,fabric.devicePixelRatio):1},_initRetinaScaling:function(){if(this._isRetinaScaling()){var t=fabric.devicePixelRatio;this.__initRetinaScaling(t,this.lowerCanvasEl,this.contextContainer),this.upperCanvasEl&&this.__initRetinaScaling(t,this.upperCanvasEl,this.contextTop)}},__initRetinaScaling:function(t,e,r){e.setAttribute("width",this.width*t),e.setAttribute("height",this.height*t),r.scale(t,t)},calcOffset:function(){return this._offset=e(this.lowerCanvasEl),this},setOverlayImage:function(t,e,r){return this.__setBgOverlayImage("overlayImage",t,e,r)},setBackgroundImage:function(t,e,r){return this.__setBgOverlayImage("backgroundImage",t,e,r)},setOverlayColor:function(t,e){return this.__setBgOverlayColor("overlayColor",t,e)},setBackgroundColor:function(t,e){return this.__setBgOverlayColor("backgroundColor",t,e)},__setBgOverlayImage:function(t,e,r,i){return"string"==typeof e?fabric.util.loadImage(e,function(e,n){if(e){var a=new fabric.Image(e,i);this[t]=a,a.canvas=this}r&&r(e,n)},this,i&&i.crossOrigin):(i&&e.setOptions(i),this[t]=e,e&&(e.canvas=this),r&&r(e,!1)),this},__setBgOverlayColor:function(t,e,r){return this[t]=e,this._initGradient(e,t),this._initPattern(e,t,r),this},_createCanvasElement:function(){var t=s();if(!t)throw c;if(t.style||(t.style={}),"undefined"==typeof t.getContext)throw c;return t},_initOptions:function(t){var e=this.lowerCanvasEl;this._setOptions(t),this.width=this.width||parseInt(e.width,10)||0,this.height=this.height||parseInt(e.height,10)||0,this.lowerCanvasEl.style&&(e.width=this.width,e.height=this.height,e.style.width=this.width+"px",e.style.height=this.height+"px",this.viewportTransform=this.viewportTransform.slice())},_createLowerCanvas:function(t){this.lowerCanvasEl=t&&t.getContext?t:fabric.util.getById(t)||this._createCanvasElement(),fabric.util.addClass(this.lowerCanvasEl,"lower-canvas"),this._originalCanvasStyle=this.lowerCanvasEl.style,this.interactive&&this._applyCanvasStyle(this.lowerCanvasEl),this.contextContainer=this.lowerCanvasEl.getContext("2d")},getWidth:function(){return this.width},getHeight:function(){return this.height},setWidth:function(t,e){return this.setDimensions({width:t},e)},setHeight:function(t,e){return this.setDimensions({height:t},e)},setDimensions:function(t,e){var r;e=e||{};for(var i in t)r=t[i],e.cssOnly||(this._setBackstoreDimension(i,t[i]),r+="px",this.hasLostContext=!0),e.backstoreOnly||this._setCssDimension(i,r);return this._isCurrentlyDrawing&&this.freeDrawingBrush&&this.freeDrawingBrush._setBrushStyles(this.contextTop),this._initRetinaScaling(),this.calcOffset(),e.cssOnly||this.requestRenderAll(),this},_setBackstoreDimension:function(t,e){return this.lowerCanvasEl[t]=e,this.upperCanvasEl&&(this.upperCanvasEl[t]=e),this.cacheCanvasEl&&(this.cacheCanvasEl[t]=e),this[t]=e,this},_setCssDimension:function(t,e){return this.lowerCanvasEl.style[t]=e,this.upperCanvasEl&&(this.upperCanvasEl.style[t]=e),this.wrapperEl&&(this.wrapperEl.style[t]=e),this},getZoom:function(){return this.viewportTransform[0]},setViewportTransform:function(t){var e,r,i,n=this._activeObject,a=this.backgroundImage,o=this.overlayImage;for(this.viewportTransform=t,r=0,i=this._objects.length;i>r;r++)e=this._objects[r],e.group||e.setCoords(!0);return n&&n.setCoords(),a&&a.setCoords(!0),o&&o.setCoords(!0),this.calcViewportBoundaries(),this.renderOnAddRemove&&this.requestRenderAll(),this},zoomToPoint:function(t,e){var r=t,i=this.viewportTransform.slice(0);t=n(t,a(this.viewportTransform)),i[0]=e,i[3]=e;var o=n(t,i);return i[4]+=r.x-o.x,i[5]+=r.y-o.y,this.setViewportTransform(i)},setZoom:function(t){return this.zoomToPoint(new fabric.Point(0,0),t),this},absolutePan:function(t){var e=this.viewportTransform.slice(0);return e[4]=-t.x,e[5]=-t.y,this.setViewportTransform(e)},relativePan:function(t){return this.absolutePan(new fabric.Point(-t.x-this.viewportTransform[4],-t.y-this.viewportTransform[5]))},getElement:function(){return this.lowerCanvasEl},_onObjectAdded:function(t){this.stateful&&t.setupState(),t._set("canvas",this),t.setCoords(),this.fire("object:added",{target:t}),t.fire("added")},_onObjectRemoved:function(t){this.fire("object:removed",{target:t}),t.fire("removed"),delete t.canvas},clearContext:function(t){return t.clearRect(0,0,this.width,this.height),this},getContext:function(){return this.contextContainer},clear:function(){return this.remove.apply(this,this.getObjects()),this.backgroundImage=null,this.overlayImage=null,this.backgroundColor="",this.overlayColor="",this._hasITextHandlers&&(this.off("mouse:up",this._mouseUpITextHandler),this._iTextInstances=null,this._hasITextHandlers=!1),this.clearContext(this.contextContainer),this.fire("canvas:cleared"),this.renderOnAddRemove&&this.requestRenderAll(),this},renderAll:function(){var t=this.contextContainer;return this.renderCanvas(t,this._objects),this},renderAndReset:function(){this.isRendering=0,this.renderAll()},requestRenderAll:function(){return this.isRendering||(this.isRendering=fabric.util.requestAnimFrame(this.renderAndResetBound)),this},calcViewportBoundaries:function(){var t={},e=this.width,r=this.height,i=a(this.viewportTransform);return t.tl=n({x:0,y:0},i),t.br=n({x:e,y:r},i),t.tr=new fabric.Point(t.br.x,t.tl.y),t.bl=new fabric.Point(t.tl.x,t.br.y),this.vptCoords=t,t},cancelRequestedRender:function(){this.isRendering&&(fabric.util.cancelAnimFrame(this.isRendering),this.isRendering=0)},renderCanvas:function(t,e){var r=this.viewportTransform,i=this.clipPath;this.cancelRequestedRender(),this.calcViewportBoundaries(),this.clearContext(t),fabric.util.setImageSmoothing(t,this.imageSmoothingEnabled),this.fire("before:render",{ctx:t}),this._renderBackground(t),t.save(),t.transform(r[0],r[1],r[2],r[3],r[4],r[5]),this._renderObjects(t,e),t.restore(),!this.controlsAboveOverlay&&this.interactive&&this.drawControls(t),i&&(i.canvas=this,i.shouldCache(),i._transformDone=!0,i.renderCache({forClipping:!0}),this.drawClipPathOnCanvas(t)),this._renderOverlay(t),this.controlsAboveOverlay&&this.interactive&&this.drawControls(t),this.fire("after:render",{ctx:t})},drawClipPathOnCanvas:function(t){var e=this.viewportTransform,r=this.clipPath;t.save(),t.transform(e[0],e[1],e[2],e[3],e[4],e[5]),t.globalCompositeOperation="destination-in",r.transform(t),t.scale(1/r.zoomX,1/r.zoomY),t.drawImage(r._cacheCanvas,-r.cacheTranslationX,-r.cacheTranslationY),t.restore()},_renderObjects:function(t,e){var r,i;for(r=0,i=e.length;i>r;++r)e[r]&&e[r].render(t)},_renderBackgroundOrOverlay:function(t,e){var r=this[e+"Color"],i=this[e+"Image"],n=this.viewportTransform,a=this[e+"Vpt"];if(r||i){if(r){t.save(),t.beginPath(),t.moveTo(0,0),t.lineTo(this.width,0),t.lineTo(this.width,this.height),t.lineTo(0,this.height),t.closePath(),t.fillStyle=r.toLive?r.toLive(t,this):r,a&&t.transform(n[0],n[1],n[2],n[3],n[4],n[5]),t.transform(1,0,0,1,r.offsetX||0,r.offsetY||0);var o=r.gradientTransform||r.patternTransform;o&&t.transform(o[0],o[1],o[2],o[3],o[4],o[5]),t.fill(),t.restore()}i&&(t.save(),a&&t.transform(n[0],n[1],n[2],n[3],n[4],n[5]),i.render(t),t.restore())}},_renderBackground:function(t){this._renderBackgroundOrOverlay(t,"background")},_renderOverlay:function(t){this._renderBackgroundOrOverlay(t,"overlay")},getCenter:function(){return{top:this.height/2,left:this.width/2}},getCenterPoint:function(){return new fabric.Point(this.width/2,this.height/2)},centerObjectH:function(t){return this._centerObject(t,new fabric.Point(this.getCenterPoint().x,t.getCenterPoint().y))},centerObjectV:function(t){return this._centerObject(t,new fabric.Point(t.getCenterPoint().x,this.getCenterPoint().y))},centerObject:function(t){var e=this.getCenterPoint();return this._centerObject(t,e)},viewportCenterObject:function(t){var e=this.getVpCenter();return this._centerObject(t,e)},viewportCenterObjectH:function(t){var e=this.getVpCenter();return this._centerObject(t,new fabric.Point(e.x,t.getCenterPoint().y)),this},viewportCenterObjectV:function(t){var e=this.getVpCenter();return this._centerObject(t,new fabric.Point(t.getCenterPoint().x,e.y))},getVpCenter:function(){var t=this.getCenterPoint(),e=a(this.viewportTransform);return n(t,e)},_centerObject:function(t,e){return t.setPositionByOrigin(e,"center","center"),t.setCoords(),this.renderOnAddRemove&&this.requestRenderAll(),this},toDatalessJSON:function(t){return this.toDatalessObject(t)},toObject:function(t){return this._toObjectMethod("toObject",t)},toDatalessObject:function(t){return this._toObjectMethod("toDatalessObject",t)},_toObjectMethod:function(e,r){var i=this.clipPath,n={version:fabric.version,objects:this._toObjects(e,r)};return i&&!i.excludeFromExport&&(n.clipPath=this._toObject(this.clipPath,e,r)),t(n,this.__serializeBgOverlay(e,r)),fabric.util.populateWithProperties(this,n,r),n},_toObjects:function(t,e){return this._objects.filter(function(t){return!t.excludeFromExport}).map(function(r){return this._toObject(r,t,e)},this)},_toObject:function(t,e,r){var i;this.includeDefaultValues||(i=t.includeDefaultValues,t.includeDefaultValues=!1);var n=t[e](r);return this.includeDefaultValues||(t.includeDefaultValues=i),n},__serializeBgOverlay:function(t,e){var r={},i=this.backgroundImage,n=this.overlayImage,a=this.backgroundColor,o=this.overlayColor;return a&&a.toObject?a.excludeFromExport||(r.background=a.toObject(e)):a&&(r.background=a),o&&o.toObject?o.excludeFromExport||(r.overlay=o.toObject(e)):o&&(r.overlay=o),i&&!i.excludeFromExport&&(r.backgroundImage=this._toObject(i,t,e)),n&&!n.excludeFromExport&&(r.overlayImage=this._toObject(n,t,e)),r},svgViewportTransformation:!0,toSVG:function(t,e){t||(t={}),t.reviver=e;var r=[];return this._setSVGPreamble(r,t),this._setSVGHeader(r,t),this.clipPath&&r.push('\n'),this._setSVGBgOverlayColor(r,"background"),this._setSVGBgOverlayImage(r,"backgroundImage",e),this._setSVGObjects(r,e),this.clipPath&&r.push("\n"),this._setSVGBgOverlayColor(r,"overlay"),this._setSVGBgOverlayImage(r,"overlayImage",e),r.push(""),r.join("")},_setSVGPreamble:function(t,e){e.suppressPreamble||t.push('\n','\n')},_setSVGHeader:function(t,e){var r,n=e.width||this.width,a=e.height||this.height,o='viewBox="0 0 '+this.width+" "+this.height+'" ',s=fabric.Object.NUM_FRACTION_DIGITS;e.viewBox?o='viewBox="'+e.viewBox.x+" "+e.viewBox.y+" "+e.viewBox.width+" "+e.viewBox.height+'" ':this.svgViewportTransformation&&(r=this.viewportTransform,o='viewBox="'+i(-r[4]/r[0],s)+" "+i(-r[5]/r[3],s)+" "+i(this.width/r[0],s)+" "+i(this.height/r[3],s)+'" '),t.push("\n',"Created with Fabric.js ",fabric.version,"\n","\n",this.createSVGFontFacesMarkup(),this.createSVGRefElementsMarkup(),this.createSVGClipPathMarkup(e),"\n")},createSVGClipPathMarkup:function(t){var e=this.clipPath;return e?(e.clipPathId="CLIPPATH_"+fabric.Object.__uid++,'\n'+this.clipPath.toClipPathSVG(t.reviver)+"\n"):""},createSVGRefElementsMarkup:function(){var t=this,e=["background","overlay"].map(function(e){var r=t[e+"Color"];if(r&&r.toLive){var i=t[e+"Vpt"],n=t.viewportTransform,a={width:t.width/(i?n[0]:1),height:t.height/(i?n[3]:1)};return r.toSVG(a,{additionalTransform:i?fabric.util.matrixToSVG(n):""})}});return e.join("")},createSVGFontFacesMarkup:function(){var t,e,r,i,n,a,o,s,c,l="",u={},f=fabric.fontPaths,h=[];for(this._objects.forEach(function p(t){h.push(t),t._objects&&t._objects.forEach(p)}),s=0,c=h.length;c>s;s++)if(t=h[s],e=t.fontFamily,-1!==t.type.indexOf("text")&&!u[e]&&f[e]&&(u[e]=!0,t.styles)){r=t.styles;for(n in r){i=r[n];for(o in i)a=i[o],e=a.fontFamily,!u[e]&&f[e]&&(u[e]=!0)}}for(var d in u)l+=[" @font-face {\n"," font-family: '",d,"';\n"," src: url('",f[d],"');\n"," }\n"].join("");return l&&(l=[' \n"].join("")),l},_setSVGObjects:function(t,e){var r,i,n,a=this._objects;for(i=0,n=a.length;n>i;i++)r=a[i],r.excludeFromExport||this._setSVGObject(t,r,e)},_setSVGObject:function(t,e,r){t.push(e.toSVG(r))},_setSVGBgOverlayImage:function(t,e,r){this[e]&&!this[e].excludeFromExport&&this[e].toSVG&&t.push(this[e].toSVG(r))},_setSVGBgOverlayColor:function(t,e){var r=this[e+"Color"],i=this.viewportTransform,n=this.width,a=this.height;if(r)if(r.toLive){var o=r.repeat,s=fabric.util.invertTransform(i),c=this[e+"Vpt"],l=c?fabric.util.matrixToSVG(s):"";t.push('\n")}else t.push('\n")},sendToBack:function(t){if(!t)return this;var e,i,n,a=this._activeObject;if(t===a&&"activeSelection"===t.type)for(n=a._objects,e=n.length;e--;)i=n[e],r(this._objects,i),this._objects.unshift(i);else r(this._objects,t),this._objects.unshift(t);return this.renderOnAddRemove&&this.requestRenderAll(),this},bringToFront:function(t){if(!t)return this;var e,i,n,a=this._activeObject;if(t===a&&"activeSelection"===t.type)for(n=a._objects,e=0;e0+l&&(o=a-1,r(this._objects,n),this._objects.splice(o,0,n)),l++;else a=this._objects.indexOf(t),0!==a&&(o=this._findNewLowerIndex(t,a,e),r(this._objects,t),this._objects.splice(o,0,t));return this.renderOnAddRemove&&this.requestRenderAll(),this},_findNewLowerIndex:function(t,e,r){var i,n;if(r)for(i=e,n=e-1;n>=0;--n){var a=t.intersectsWithObject(this._objects[n])||t.isContainedWithinObject(this._objects[n])||this._objects[n].isContainedWithinObject(t);if(a){i=n;break}}else i=e-1;return i},bringForward:function(t,e){if(!t)return this;var i,n,a,o,s,c=this._activeObject,l=0;if(t===c&&"activeSelection"===t.type)for(s=c._objects,i=s.length;i--;)n=s[i],a=this._objects.indexOf(n),an;++n){var o=t.intersectsWithObject(this._objects[n])||t.isContainedWithinObject(this._objects[n])||this._objects[n].isContainedWithinObject(t);if(o){i=n;break}}else i=e+1;return i},moveTo:function(t,e){return r(this._objects,t),this._objects.splice(e,0,t),this.renderOnAddRemove&&this.requestRenderAll()},dispose:function(){return this.isRendering&&(fabric.util.cancelAnimFrame(this.isRendering),this.isRendering=0),this.forEachObject(function(t){t.dispose&&t.dispose()}),this._objects=[],this.backgroundImage&&this.backgroundImage.dispose&&this.backgroundImage.dispose(),this.backgroundImage=null,this.overlayImage&&this.overlayImage.dispose&&this.overlayImage.dispose(),this.overlayImage=null,this._iTextInstances=null,this.contextContainer=null,this.lowerCanvasEl.classList.remove("lower-canvas"),fabric.util.setStyle(this.lowerCanvasEl,this._originalCanvasStyle),delete this._originalCanvasStyle,this.lowerCanvasEl.setAttribute("width",this.width),this.lowerCanvasEl.setAttribute("height",this.height),fabric.util.cleanUpJsdomNode(this.lowerCanvasEl),this.lowerCanvasEl=void 0,this},toString:function(){return"#"}}),t(fabric.StaticCanvas.prototype,fabric.Observable),t(fabric.StaticCanvas.prototype,fabric.Collection),t(fabric.StaticCanvas.prototype,fabric.DataURLExporter),t(fabric.StaticCanvas,{EMPTY_JSON:'{"objects": [], "background": "white"}',supports:function(t){var e=s();if(!e||!e.getContext)return null;var r=e.getContext("2d");if(!r)return null;switch(t){case"setLineDash":return"undefined"!=typeof r.setLineDash;default:return null}}}),fabric.StaticCanvas.prototype.toJSON=fabric.StaticCanvas.prototype.toObject,fabric.isLikelyNode&&(fabric.StaticCanvas.prototype.createPNGStream=function(){var t=o(this.lowerCanvasEl);return t&&t.createPNGStream()},fabric.StaticCanvas.prototype.createJPEGStream=function(t){var e=o(this.lowerCanvasEl);return e&&e.createJPEGStream(t)})}();fabric.BaseBrush=fabric.util.createClass({color:"rgb(0, 0, 0)",width:1,shadow:null,strokeLineCap:"round",strokeLineJoin:"round",strokeMiterLimit:10,strokeDashArray:null,limitedToCanvasSize:!1,_setBrushStyles:function(t){t.strokeStyle=this.color,t.lineWidth=this.width,t.lineCap=this.strokeLineCap,t.miterLimit=this.strokeMiterLimit,t.lineJoin=this.strokeLineJoin,t.setLineDash(this.strokeDashArray||[])},_saveAndTransform:function(t){var e=this.canvas.viewportTransform;t.save(),t.transform(e[0],e[1],e[2],e[3],e[4],e[5])},_setShadow:function(){if(this.shadow){var t=this.canvas,e=this.shadow,r=t.contextTop,i=t.getZoom();t&&t._isRetinaScaling()&&(i*=fabric.devicePixelRatio),r.shadowColor=e.color,r.shadowBlur=e.blur*i,r.shadowOffsetX=e.offsetX*i,r.shadowOffsetY=e.offsetY*i}},needsFullRender:function(){var t=new fabric.Color(this.color);return t.getAlpha()<1||!!this.shadow},_resetShadow:function(){var t=this.canvas.contextTop;t.shadowColor="",t.shadowBlur=t.shadowOffsetX=t.shadowOffsetY=0},_isOutSideCanvas:function(t){return t.x<0||t.x>this.canvas.getWidth()||t.y<0||t.y>this.canvas.getHeight()}});!function(){fabric.PencilBrush=fabric.util.createClass(fabric.BaseBrush,{decimate:.4,drawStraightLine:!1,straightLineKey:"shiftKey",initialize:function(t){this.canvas=t,this._points=[]},needsFullRender:function(){return this.callSuper("needsFullRender")||this._hasStraightLine},_drawSegment:function(t,e,r){var i=e.midPointFrom(r);return t.quadraticCurveTo(e.x,e.y,i.x,i.y),i},onMouseDown:function(t,e){this.canvas._isMainEvent(e.e)&&(this.drawStraightLine=e.e[this.straightLineKey],this._prepareForDrawing(t),this._captureDrawingPath(t),this._render())},onMouseMove:function(t,e){if(this.canvas._isMainEvent(e.e)&&(this.drawStraightLine=e.e[this.straightLineKey],(this.limitedToCanvasSize!==!0||!this._isOutSideCanvas(t))&&this._captureDrawingPath(t)&&this._points.length>1))if(this.needsFullRender())this.canvas.clearContext(this.canvas.contextTop),this._render();else{var r=this._points,i=r.length,n=this.canvas.contextTop;this._saveAndTransform(n),this.oldEnd&&(n.beginPath(),n.moveTo(this.oldEnd.x,this.oldEnd.y)),this.oldEnd=this._drawSegment(n,r[i-2],r[i-1],!0),n.stroke(),n.restore()}},onMouseUp:function(t){return this.canvas._isMainEvent(t.e)?(this.drawStraightLine=!1,this.oldEnd=void 0,this._finalizeAndAddPath(),!1):!0},_prepareForDrawing:function(t){var e=new fabric.Point(t.x,t.y);this._reset(),this._addPoint(e),this.canvas.contextTop.moveTo(e.x,e.y)},_addPoint:function(t){return this._points.length>1&&t.eq(this._points[this._points.length-1])?!1:(this.drawStraightLine&&this._points.length>1&&(this._hasStraightLine=!0,this._points.pop()),this._points.push(t),!0)},_reset:function(){this._points=[],this._setBrushStyles(this.canvas.contextTop),this._setShadow(),this._hasStraightLine=!1},_captureDrawingPath:function(t){var e=new fabric.Point(t.x,t.y);return this._addPoint(e)},_render:function(t){var e,r,i=this._points[0],n=this._points[1];if(t=t||this.canvas.contextTop,this._saveAndTransform(t),t.beginPath(),2===this._points.length&&i.x===n.x&&i.y===n.y){var a=this.width/1e3;i=new fabric.Point(i.x,i.y),n=new fabric.Point(n.x,n.y),i.x-=a,n.x+=a}for(t.moveTo(i.x,i.y),e=1,r=this._points.length;r>e;e++)this._drawSegment(t,i,n),i=this._points[e],n=this._points[e+1];t.lineTo(i.x,i.y),t.stroke(),t.restore()},convertPointsToSVGPath:function(t){var e=this.width/1e3;return fabric.util.getSmoothPathFromPoints(t,e)},_isEmptySVGPath:function(t){var e=fabric.util.joinPath(t);return"M 0 0 Q 0 0 0 0 L 0 0"===e},createPath:function(t){var e=new fabric.Path(t,{fill:null,stroke:this.color,strokeWidth:this.width,strokeLineCap:this.strokeLineCap,strokeMiterLimit:this.strokeMiterLimit,strokeLineJoin:this.strokeLineJoin,strokeDashArray:this.strokeDashArray});return this.shadow&&(this.shadow.affectStroke=!0,e.shadow=new fabric.Shadow(this.shadow)),e},decimatePoints:function(t,e){if(t.length<=2)return t;var r,i,n=this.canvas.getZoom(),a=Math.pow(e/n,2),o=t.length-1,s=t[0],c=[s];for(r=1;o-1>r;r++)i=Math.pow(s.x-t[r].x,2)+Math.pow(s.y-t[r].y,2),i>=a&&(s=t[r],c.push(s));return c.push(t[o]),c},_finalizeAndAddPath:function(){var t=this.canvas.contextTop;t.closePath(),this.decimate&&(this._points=this.decimatePoints(this._points,this.decimate));var e=this.convertPointsToSVGPath(this._points);if(this._isEmptySVGPath(e))return void this.canvas.requestRenderAll();var r=this.createPath(e);this.canvas.clearContext(this.canvas.contextTop),this.canvas.fire("before:path:created",{path:r}),this.canvas.add(r),this.canvas.requestRenderAll(),r.setCoords(),this._resetShadow(),this.canvas.fire("path:created",{path:r})}})}();fabric.CircleBrush=fabric.util.createClass(fabric.BaseBrush,{width:10,initialize:function(t){this.canvas=t,this.points=[]},drawDot:function(t){var e=this.addPoint(t),r=this.canvas.contextTop;this._saveAndTransform(r),this.dot(r,e),r.restore()},dot:function(t,e){t.fillStyle=e.fill,t.beginPath(),t.arc(e.x,e.y,e.radius,0,2*Math.PI,!1),t.closePath(),t.fill()},onMouseDown:function(t){this.points.length=0,this.canvas.clearContext(this.canvas.contextTop),this._setShadow(),this.drawDot(t)},_render:function(){var t,e,r=this.canvas.contextTop,i=this.points;for(this._saveAndTransform(r),t=0,e=i.length;e>t;t++)this.dot(r,i[t]);r.restore()},onMouseMove:function(t){this.limitedToCanvasSize===!0&&this._isOutSideCanvas(t)||(this.needsFullRender()?(this.canvas.clearContext(this.canvas.contextTop),this.addPoint(t),this._render()):this.drawDot(t))},onMouseUp:function(){var t,e,r=this.canvas.renderOnAddRemove;this.canvas.renderOnAddRemove=!1;var i=[];for(t=0,e=this.points.length;e>t;t++){var n=this.points[t],a=new fabric.Circle({radius:n.radius,left:n.x,top:n.y,originX:"center",originY:"center",fill:n.fill});this.shadow&&(a.shadow=new fabric.Shadow(this.shadow)),i.push(a)}var o=new fabric.Group(i);o.canvas=this.canvas,this.canvas.fire("before:path:created",{path:o}),this.canvas.add(o),this.canvas.fire("path:created",{path:o}),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderOnAddRemove=r,this.canvas.requestRenderAll()},addPoint:function(t){var e=new fabric.Point(t.x,t.y),r=fabric.util.getRandomInt(Math.max(0,this.width-20),this.width+20)/2,i=new fabric.Color(this.color).setAlpha(fabric.util.getRandomInt(0,100)/100).toRgba();return e.radius=r,e.fill=i,this.points.push(e),e}});fabric.SprayBrush=fabric.util.createClass(fabric.BaseBrush,{width:10,density:20,dotWidth:1,dotWidthVariance:1,randomOpacity:!1,optimizeOverlapping:!0,initialize:function(t){this.canvas=t,this.sprayChunks=[]},onMouseDown:function(t){this.sprayChunks.length=0,this.canvas.clearContext(this.canvas.contextTop),this._setShadow(),this.addSprayChunk(t),this.render(this.sprayChunkPoints)},onMouseMove:function(t){this.limitedToCanvasSize===!0&&this._isOutSideCanvas(t)||(this.addSprayChunk(t),this.render(this.sprayChunkPoints))},onMouseUp:function(){var t=this.canvas.renderOnAddRemove;this.canvas.renderOnAddRemove=!1;for(var e=[],r=0,i=this.sprayChunks.length;i>r;r++)for(var n=this.sprayChunks[r],a=0,o=n.length;o>a;a++){var s=new fabric.Rect({width:n[a].width,height:n[a].width,left:n[a].x+1,top:n[a].y+1,originX:"center",originY:"center",fill:this.color});e.push(s)}this.optimizeOverlapping&&(e=this._getOptimizedRects(e));var c=new fabric.Group(e);this.shadow&&c.set("shadow",new fabric.Shadow(this.shadow)),this.canvas.fire("before:path:created",{path:c}),this.canvas.add(c),this.canvas.fire("path:created",{path:c}),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderOnAddRemove=t,this.canvas.requestRenderAll()},_getOptimizedRects:function(t){var e,r,i,n={};for(r=0,i=t.length;i>r;r++)e=t[r].left+""+t[r].top,n[e]||(n[e]=t[r]);var a=[];for(e in n)a.push(n[e]);return a},render:function(t){var e,r,i=this.canvas.contextTop;for(i.fillStyle=this.color,this._saveAndTransform(i),e=0,r=t.length;r>e;e++){var n=t[e];"undefined"!=typeof n.opacity&&(i.globalAlpha=n.opacity),i.fillRect(n.x,n.y,n.width,n.width)}i.restore()},_render:function(){var t,e,r=this.canvas.contextTop;for(r.fillStyle=this.color,this._saveAndTransform(r),t=0,e=this.sprayChunks.length;e>t;t++)this.render(this.sprayChunks[t]);r.restore()},addSprayChunk:function(t){this.sprayChunkPoints=[];var e,r,i,n,a=this.width/2;for(n=0;n0&&!this.preserveObjectStacking){e=[],r=[];for(var n=0,a=this._objects.length;a>n;n++)t=this._objects[n],-1===i.indexOf(t)?e.push(t):r.push(t);i.length>1&&(this._activeObject._objects=r),e.push.apply(e,r)}else e=this._objects;return e},renderAll:function(){!this.contextTopDirty||this._groupSelector||this.isDrawingMode||(this.clearContext(this.contextTop),this.contextTopDirty=!1),this.hasLostContext&&(this.renderTopLayer(this.contextTop),this.hasLostContext=!1);var t=this.contextContainer;return this.renderCanvas(t,this._chooseObjectsToRender()),this},renderTopLayer:function(t){t.save(),this.isDrawingMode&&this._isCurrentlyDrawing&&(this.freeDrawingBrush&&this.freeDrawingBrush._render(),this.contextTopDirty=!0),this.selection&&this._groupSelector&&(this._drawSelection(t),this.contextTopDirty=!0),t.restore()},renderTop:function(){var t=this.contextTop;return this.clearContext(t),this.renderTopLayer(t),this.fire("after:render"),this},_normalizePointer:function(t,e){var r=t.calcTransformMatrix(),i=fabric.util.invertTransform(r),n=this.restorePointerVpt(e);return fabric.util.transformPoint(n,i)},isTargetTransparent:function(t,e,r){if(t.shouldCache()&&t._cacheCanvas&&t!==this._activeObject){var i=this._normalizePointer(t,{x:e,y:r}),n=Math.max(t.cacheTranslationX+i.x*t.zoomX,0),a=Math.max(t.cacheTranslationY+i.y*t.zoomY,0),s=fabric.util.isTransparent(t._cacheContext,Math.round(n),Math.round(a),this.targetFindTolerance);return s}var o=this.contextCache,c=t.selectionBackgroundColor,l=this.viewportTransform;t.selectionBackgroundColor="",this.clearContext(o),o.save(),o.transform(l[0],l[1],l[2],l[3],l[4],l[5]),t.render(o),o.restore(),t.selectionBackgroundColor=c;var s=fabric.util.isTransparent(o,e,r,this.targetFindTolerance);return s},_isSelectionKeyPressed:function(t){var e=!1;return e=Array.isArray(this.selectionKey)?!!this.selectionKey.find(function(e){return t[e]===!0}):t[this.selectionKey]},_shouldClearSelection:function(t,e){var r=this.getActiveObjects(),i=this._activeObject;return!e||e&&i&&r.length>1&&-1===r.indexOf(e)&&i!==e&&!this._isSelectionKeyPressed(t)||e&&!e.evented||e&&!e.selectable&&i&&i!==e},_shouldCenterTransform:function(t,e,r){if(t){var i;return"scale"===e||"scaleX"===e||"scaleY"===e||"resizing"===e?i=this.centeredScaling||t.centeredScaling:"rotate"===e&&(i=this.centeredRotation||t.centeredRotation),i?!r:r}},_getOriginFromCorner:function(t,e){var r={x:t.originX,y:t.originY};return"ml"===e||"tl"===e||"bl"===e?r.x="right":("mr"===e||"tr"===e||"br"===e)&&(r.x="left"),"tl"===e||"mt"===e||"tr"===e?r.y="bottom":("bl"===e||"mb"===e||"br"===e)&&(r.y="top"),r},_getActionFromCorner:function(t,e,r,i){if(!e||!t)return"drag";var n=i.controls[e];return n.getActionName(r,n,i)},_setupCurrentTransform:function(t,r,i){if(r){var n=this.getPointer(t),a=r.__corner,s=r.controls[a],o=i&&a?s.getActionHandler(t,r,s):fabric.controlsUtils.dragHandler,c=this._getActionFromCorner(i,a,t,r),l=this._getOriginFromCorner(r,a),u=t[this.centeredKey],h={target:r,action:c,actionHandler:o,corner:a,scaleX:r.scaleX,scaleY:r.scaleY,skewX:r.skewX,skewY:r.skewY,offsetX:n.x-r.left,offsetY:n.y-r.top,originX:l.x,originY:l.y,ex:n.x,ey:n.y,lastX:n.x,lastY:n.y,theta:e(r.angle),width:r.width*r.scaleX,shiftKey:t.shiftKey,altKey:u,original:fabric.util.saveObjectTransform(r)};this._shouldCenterTransform(r,c,u)&&(h.originX="center",h.originY="center"),h.original.originX=l.x,h.original.originY=l.y,this._currentTransform=h,this._beforeTransform(t)}},setCursor:function(t){this.upperCanvasEl.style.cursor=t},_drawSelection:function(t){var e=this._groupSelector,r=new fabric.Point(e.ex,e.ey),i=fabric.util.transformPoint(r,this.viewportTransform),n=new fabric.Point(e.ex+e.left,e.ey+e.top),a=fabric.util.transformPoint(n,this.viewportTransform),s=Math.min(i.x,a.x),o=Math.min(i.y,a.y),c=Math.max(i.x,a.x),l=Math.max(i.y,a.y),u=this.selectionLineWidth/2;this.selectionColor&&(t.fillStyle=this.selectionColor,t.fillRect(s,o,c-s,l-o)),this.selectionLineWidth&&this.selectionBorderColor&&(t.lineWidth=this.selectionLineWidth,t.strokeStyle=this.selectionBorderColor,s+=u,o+=u,c-=u,l-=u,fabric.Object.prototype._setLineDash.call(this,t,this.selectionDashArray),t.strokeRect(s,o,c-s,l-o))},findTarget:function(t,e){if(!this.skipTargetFind){var i,n,a=!0,s=this.getPointer(t,a),o=this._activeObject,c=this.getActiveObjects(),l=r(t),u=c.length>1&&!e||1===c.length;if(this.targets=[],u&&o._findTargetCorner(s,l))return o;if(c.length>1&&!e&&o===this._searchPossibleTargets([o],s))return o;if(1===c.length&&o===this._searchPossibleTargets([o],s)){if(!this.preserveObjectStacking)return o;i=o,n=this.targets,this.targets=[]}var h=this._searchPossibleTargets(this._objects,s);return t[this.altSelectionKey]&&h&&i&&h!==i&&(h=i,this.targets=n),h}},_checkTarget:function(t,e,r){if(e&&e.visible&&e.evented&&e.containsPoint(t)){if(!this.perPixelTargetFind&&!e.perPixelTargetFind||e.isEditing)return!0;var i=this.isTargetTransparent(e,r.x,r.y);if(!i)return!0}},_searchPossibleTargets:function(t,e){for(var r,i,n=t.length;n--;){var a=t[n],s=a.group?this._normalizePointer(a.group,e):e;if(this._checkTarget(s,a,e)){r=t[n],r.subTargetCheck&&r instanceof fabric.Group&&(i=this._searchPossibleTargets(r._objects,e),i&&this.targets.push(i));break}}return r},restorePointerVpt:function(t){return fabric.util.transformPoint(t,fabric.util.invertTransform(this.viewportTransform))},getPointer:function(e,r){if(this._absolutePointer&&!r)return this._absolutePointer;if(this._pointer&&r)return this._pointer;var i,n=t(e),a=this.upperCanvasEl,s=a.getBoundingClientRect(),o=s.width||0,c=s.height||0;o&&c||("top"in s&&"bottom"in s&&(c=Math.abs(s.top-s.bottom)),"right"in s&&"left"in s&&(o=Math.abs(s.right-s.left))),this.calcOffset(),n.x=n.x-this._offset.left,n.y=n.y-this._offset.top,r||(n=this.restorePointerVpt(n));var l=this.getRetinaScaling();return 1!==l&&(n.x/=l,n.y/=l),i=0===o||0===c?{width:1,height:1}:{width:a.width/o,height:a.height/c},{x:n.x*i.width,y:n.y*i.height}},_createUpperCanvas:function(){var t=this.lowerCanvasEl.className.replace(/\s*lower-canvas\s*/,""),e=this.lowerCanvasEl,r=this.upperCanvasEl;r?r.className="":(r=this._createCanvasElement(),this.upperCanvasEl=r),fabric.util.addClass(r,"upper-canvas "+t),this.wrapperEl.appendChild(r),this._copyCanvasStyle(e,r),this._applyCanvasStyle(r),this.contextTop=r.getContext("2d")},getTopContext:function(){return this.contextTop},_createCacheCanvas:function(){this.cacheCanvasEl=this._createCanvasElement(),this.cacheCanvasEl.setAttribute("width",this.width),this.cacheCanvasEl.setAttribute("height",this.height),this.contextCache=this.cacheCanvasEl.getContext("2d")},_initWrapperElement:function(){this.wrapperEl=fabric.util.wrapElement(this.lowerCanvasEl,"div",{"class":this.containerClass}),fabric.util.setStyle(this.wrapperEl,{width:this.width+"px",height:this.height+"px",position:"relative"}),fabric.util.makeElementUnselectable(this.wrapperEl)},_applyCanvasStyle:function(t){var e=this.width||t.width,r=this.height||t.height;fabric.util.setStyle(t,{position:"absolute",width:e+"px",height:r+"px",left:0,top:0,"touch-action":this.allowTouchScrolling?"manipulation":"none","-ms-touch-action":this.allowTouchScrolling?"manipulation":"none"}),t.width=e,t.height=r,fabric.util.makeElementUnselectable(t)},_copyCanvasStyle:function(t,e){e.style.cssText=t.style.cssText},getSelectionContext:function(){return this.contextTop},getSelectionElement:function(){return this.upperCanvasEl},getActiveObject:function(){return this._activeObject},getActiveObjects:function(){var t=this._activeObject;return t?"activeSelection"===t.type&&t._objects?t._objects.slice(0):[t]:[]},_onObjectRemoved:function(t){t===this._activeObject&&(this.fire("before:selection:cleared",{target:t}),this._discardActiveObject(),this.fire("selection:cleared",{target:t}),t.fire("deselected")),t===this._hoveredTarget&&(this._hoveredTarget=null,this._hoveredTargets=[]),this.callSuper("_onObjectRemoved",t)},_fireSelectionEvents:function(t,e){var r=!1,i=this.getActiveObjects(),n=[],a=[];t.forEach(function(t){-1===i.indexOf(t)&&(r=!0,t.fire("deselected",{e:e,target:t}),a.push(t))}),i.forEach(function(i){-1===t.indexOf(i)&&(r=!0,i.fire("selected",{e:e,target:i}),n.push(i))}),t.length>0&&i.length>0?r&&this.fire("selection:updated",{e:e,selected:n,deselected:a}):i.length>0?this.fire("selection:created",{e:e,selected:n}):t.length>0&&this.fire("selection:cleared",{e:e,deselected:a})},setActiveObject:function(t,e){var r=this.getActiveObjects();return this._setActiveObject(t,e),this._fireSelectionEvents(r,e),this},_setActiveObject:function(t,e){return this._activeObject===t?!1:this._discardActiveObject(e,t)?t.onSelect({e:e})?!1:(this._activeObject=t,!0):!1},_discardActiveObject:function(t,e){var r=this._activeObject;if(r){if(r.onDeselect({e:t,object:e}))return!1;this._activeObject=null}return!0},discardActiveObject:function(t){var e=this.getActiveObjects(),r=this.getActiveObject();return e.length&&this.fire("before:selection:cleared",{target:r,e:t}),this._discardActiveObject(t),this._fireSelectionEvents(e,t),this},dispose:function(){var t=this.wrapperEl;return this.removeListeners(),t.removeChild(this.upperCanvasEl),t.removeChild(this.lowerCanvasEl),this.contextCache=null,this.contextTop=null,["upperCanvasEl","cacheCanvasEl"].forEach(function(t){fabric.util.cleanUpJsdomNode(this[t]),this[t]=void 0}.bind(this)),t.parentNode&&t.parentNode.replaceChild(this.lowerCanvasEl,this.wrapperEl),delete this.wrapperEl,fabric.StaticCanvas.prototype.dispose.call(this),this},clear:function(){return this.discardActiveObject(),this.clearContext(this.contextTop),this.callSuper("clear")},drawControls:function(t){var e=this._activeObject;e&&e._renderControls(t)},_toObject:function(t,e,r){var i=this._realizeGroupTransformOnObject(t),n=this.callSuper("_toObject",t,e,r);return this._unwindGroupTransformOnObject(t,i),n},_realizeGroupTransformOnObject:function(t){if(t.group&&"activeSelection"===t.group.type&&this._activeObject===t.group){var e=["angle","flipX","flipY","left","scaleX","scaleY","skewX","skewY","top"],r={};return e.forEach(function(e){r[e]=t[e]}),fabric.util.addTransformToObject(t,this._activeObject.calcOwnMatrix()),r}return null},_unwindGroupTransformOnObject:function(t,e){e&&t.set(e)},_setSVGObject:function(t,e,r){var i=this._realizeGroupTransformOnObject(e);this.callSuper("_setSVGObject",t,e,r),this._unwindGroupTransformOnObject(e,i)},setViewportTransform:function(t){this.renderOnAddRemove&&this._activeObject&&this._activeObject.isEditing&&this._activeObject.clearContextTop(),fabric.StaticCanvas.prototype.setViewportTransform.call(this,t)}});for(var i in fabric.StaticCanvas)"prototype"!==i&&(fabric.Canvas[i]=fabric.StaticCanvas[i])}();!function(){function t(t,e){return t.button&&t.button===e-1}var e=fabric.util.addListener,i=fabric.util.removeListener,r=3,n=2,a=1,s={passive:!1};fabric.util.object.extend(fabric.Canvas.prototype,{mainTouchId:null,_initEventListeners:function(){this.removeListeners(),this._bindEvents(),this.addOrRemove(e,"add")},_getEventPrefix:function(){return this.enablePointerEvents?"pointer":"mouse"},addOrRemove:function(t,e){var i=this.upperCanvasEl,r=this._getEventPrefix();t(fabric.window,"resize",this._onResize),t(i,r+"down",this._onMouseDown),t(i,r+"move",this._onMouseMove,s),t(i,r+"out",this._onMouseOut),t(i,r+"enter",this._onMouseEnter),t(i,"wheel",this._onMouseWheel),t(i,"contextmenu",this._onContextMenu),t(i,"dblclick",this._onDoubleClick),t(i,"dragover",this._onDragOver),t(i,"dragenter",this._onDragEnter),t(i,"dragleave",this._onDragLeave),t(i,"drop",this._onDrop),this.enablePointerEvents||t(i,"touchstart",this._onTouchStart,s),"undefined"!=typeof eventjs&&e in eventjs&&(eventjs[e](i,"gesture",this._onGesture),eventjs[e](i,"drag",this._onDrag),eventjs[e](i,"orientation",this._onOrientationChange),eventjs[e](i,"shake",this._onShake),eventjs[e](i,"longpress",this._onLongPress))},removeListeners:function(){this.addOrRemove(i,"remove");var t=this._getEventPrefix();i(fabric.document,t+"up",this._onMouseUp),i(fabric.document,"touchend",this._onTouchEnd,s),i(fabric.document,t+"move",this._onMouseMove,s),i(fabric.document,"touchmove",this._onMouseMove,s)},_bindEvents:function(){this.eventsBound||(this._onMouseDown=this._onMouseDown.bind(this),this._onTouchStart=this._onTouchStart.bind(this),this._onMouseMove=this._onMouseMove.bind(this),this._onMouseUp=this._onMouseUp.bind(this),this._onTouchEnd=this._onTouchEnd.bind(this),this._onResize=this._onResize.bind(this),this._onGesture=this._onGesture.bind(this),this._onDrag=this._onDrag.bind(this),this._onShake=this._onShake.bind(this),this._onLongPress=this._onLongPress.bind(this),this._onOrientationChange=this._onOrientationChange.bind(this),this._onMouseWheel=this._onMouseWheel.bind(this),this._onMouseOut=this._onMouseOut.bind(this),this._onMouseEnter=this._onMouseEnter.bind(this),this._onContextMenu=this._onContextMenu.bind(this),this._onDoubleClick=this._onDoubleClick.bind(this),this._onDragOver=this._onDragOver.bind(this),this._onDragEnter=this._simpleEventHandler.bind(this,"dragenter"),this._onDragLeave=this._simpleEventHandler.bind(this,"dragleave"),this._onDrop=this._onDrop.bind(this),this.eventsBound=!0)},_onGesture:function(t,e){this.__onTransformGesture&&this.__onTransformGesture(t,e)},_onDrag:function(t,e){this.__onDrag&&this.__onDrag(t,e)},_onMouseWheel:function(t){this.__onMouseWheel(t)},_onMouseOut:function(t){var e=this._hoveredTarget;this.fire("mouse:out",{target:e,e:t}),this._hoveredTarget=null,e&&e.fire("mouseout",{e:t});var i=this;this._hoveredTargets.forEach(function(r){i.fire("mouse:out",{target:e,e:t}),r&&e.fire("mouseout",{e:t})}),this._hoveredTargets=[],this._iTextInstances&&this._iTextInstances.forEach(function(t){t.isEditing&&t.hiddenTextarea.focus()})},_onMouseEnter:function(t){this._currentTransform||this.findTarget(t)||(this.fire("mouse:over",{target:null,e:t}),this._hoveredTarget=null,this._hoveredTargets=[])},_onOrientationChange:function(t,e){this.__onOrientationChange&&this.__onOrientationChange(t,e)},_onShake:function(t,e){this.__onShake&&this.__onShake(t,e)},_onLongPress:function(t,e){this.__onLongPress&&this.__onLongPress(t,e)},_onDragOver:function(t){t.preventDefault();var e=this._simpleEventHandler("dragover",t);this._fireEnterLeaveEvents(e,t)},_onDrop:function(t){return this._simpleEventHandler("drop:before",t),this._simpleEventHandler("drop",t)},_onContextMenu:function(t){return this.stopContextMenu&&(t.stopPropagation(),t.preventDefault()),!1},_onDoubleClick:function(t){this._cacheTransformEventData(t),this._handleEvent(t,"dblclick"),this._resetTransformEventData(t)},getPointerId:function(t){var e=t.changedTouches;return e?e[0]&&e[0].identifier:this.enablePointerEvents?t.pointerId:-1},_isMainEvent:function(t){return t.isPrimary===!0?!0:t.isPrimary===!1?!1:"touchend"===t.type&&0===t.touches.length?!0:t.changedTouches?t.changedTouches[0].identifier===this.mainTouchId:!0},_onTouchStart:function(t){t.preventDefault(),null===this.mainTouchId&&(this.mainTouchId=this.getPointerId(t)),this.__onMouseDown(t),this._resetTransformEventData();var r=this.upperCanvasEl,n=this._getEventPrefix();e(fabric.document,"touchend",this._onTouchEnd,s),e(fabric.document,"touchmove",this._onMouseMove,s),i(r,n+"down",this._onMouseDown)},_onMouseDown:function(t){this.__onMouseDown(t),this._resetTransformEventData();var r=this.upperCanvasEl,n=this._getEventPrefix();i(r,n+"move",this._onMouseMove,s),e(fabric.document,n+"up",this._onMouseUp),e(fabric.document,n+"move",this._onMouseMove,s)},_onTouchEnd:function(t){if(!(t.touches.length>0)){this.__onMouseUp(t),this._resetTransformEventData(),this.mainTouchId=null;var r=this._getEventPrefix();i(fabric.document,"touchend",this._onTouchEnd,s),i(fabric.document,"touchmove",this._onMouseMove,s);var n=this;this._willAddMouseDown&&clearTimeout(this._willAddMouseDown),this._willAddMouseDown=setTimeout(function(){e(n.upperCanvasEl,r+"down",n._onMouseDown),n._willAddMouseDown=0},400)}},_onMouseUp:function(t){this.__onMouseUp(t),this._resetTransformEventData();var r=this.upperCanvasEl,n=this._getEventPrefix();this._isMainEvent(t)&&(i(fabric.document,n+"up",this._onMouseUp),i(fabric.document,n+"move",this._onMouseMove,s),e(r,n+"move",this._onMouseMove,s))},_onMouseMove:function(t){!this.allowTouchScrolling&&t.preventDefault&&t.preventDefault(),this.__onMouseMove(t)},_onResize:function(){this.calcOffset()},_shouldRender:function(t){var e=this._activeObject;return!!e!=!!t||e&&t&&e!==t?!0:e&&e.isEditing?!1:!1},__onMouseUp:function(e){var i,s=this._currentTransform,o=this._groupSelector,c=!1,l=!o||0===o.left&&0===o.top;if(this._cacheTransformEventData(e),i=this._target,this._handleEvent(e,"up:before"),t(e,r))return void(this.fireRightClick&&this._handleEvent(e,"up",r,l));if(t(e,n))return this.fireMiddleClick&&this._handleEvent(e,"up",n,l),void this._resetTransformEventData();if(this.isDrawingMode&&this._isCurrentlyDrawing)return void this._onMouseUpInDrawingMode(e);if(this._isMainEvent(e)){if(s&&(this._finalizeCurrentTransform(e),c=s.actionPerformed),!l){var u=i===this._activeObject;this._maybeGroupObjects(e),c||(c=this._shouldRender(i)||!u&&i===this._activeObject)}var h,f;if(i){if(h=i._findTargetCorner(this.getPointer(e,!0),fabric.util.isTouchEvent(e)),i.selectable&&i!==this._activeObject&&"up"===i.activeOn)this.setActiveObject(i,e),c=!0;else{var d=i.controls[h],g=d&&d.getMouseUpHandler(e,i,d);g&&(f=this.getPointer(e),g(e,s,f.x,f.y))}i.isMoving=!1}if(s&&(s.target!==i||s.corner!==h)){var p=s.target&&s.target.controls[s.corner],v=p&&p.getMouseUpHandler(e,i,d);f=f||this.getPointer(e),v&&v(e,s,f.x,f.y)}this._setCursorFromEvent(e,i),this._handleEvent(e,"up",a,l),this._groupSelector=null,this._currentTransform=null,i&&(i.__corner=0),c?this.requestRenderAll():l||this.renderTop()}},_simpleEventHandler:function(t,e){var i=this.findTarget(e),r=this.targets,n={e:e,target:i,subTargets:r};if(this.fire(t,n),i&&i.fire(t,n),!r)return i;for(var a=0;as;s++)this.fireSyntheticInOutEvents(n[s],e,{oldTarget:r[s],evtOut:"mouseout",evtIn:"mouseover"});this._hoveredTarget=t,this._hoveredTargets=this.targets.concat()},_fireEnterLeaveEvents:function(t,e){var i=this._draggedoverTarget,r=this._hoveredTargets,n=this.targets,a=Math.max(r.length,n.length);this.fireSyntheticInOutEvents(t,e,{oldTarget:i,evtOut:"dragleave",evtIn:"dragenter"});for(var s=0;a>s;s++)this.fireSyntheticInOutEvents(n[s],e,{oldTarget:r[s],evtOut:"dragleave",evtIn:"dragenter"});this._draggedoverTarget=t},fireSyntheticInOutEvents:function(t,e,i){var r,n,a,s,o=i.oldTarget,c=o!==t,l=i.canvasEvtIn,u=i.canvasEvtOut;c&&(r={e:e,target:t,previousTarget:o},n={e:e,target:o,nextTarget:t}),s=t&&c,a=o&&c,a&&(u&&this.fire(u,n),o.fire(i.evtOut,n)),s&&(l&&this.fire(l,r),t.fire(i.evtIn,r))},__onMouseWheel:function(t){this._cacheTransformEventData(t),this._handleEvent(t,"wheel"),this._resetTransformEventData()},_transformObject:function(t){var e=this.getPointer(t),i=this._currentTransform;i.reset=!1,i.shiftKey=t.shiftKey,i.altKey=t[this.centeredKey],this._performTransformAction(t,i,e),i.actionPerformed&&this.requestRenderAll()},_performTransformAction:function(t,e,i){var r=i.x,n=i.y,a=e.action,s=!1,o=e.actionHandler;o&&(s=o(t,e,r,n)),"drag"===a&&s&&(e.target.isMoving=!0,this.setCursor(e.target.moveCursor||this.moveCursor)),e.actionPerformed=e.actionPerformed||s},_fire:fabric.controlsUtils.fireEvent,_setCursorFromEvent:function(t,e){if(!e)return this.setCursor(this.defaultCursor),!1;var i=e.hoverCursor||this.hoverCursor,r=this._activeObject&&"activeSelection"===this._activeObject.type?this._activeObject:null,n=(!r||!r.contains(e))&&e._findTargetCorner(this.getPointer(t,!0));n?this.setCursor(this.getCornerCursor(n,e,t)):(e.subTargetCheck&&this.targets.concat().reverse().map(function(t){i=t.hoverCursor||i}),this.setCursor(i))},getCornerCursor:function(t,e,i){var r=e.controls[t];return r.cursorStyleHandler(i,r,e)}})}();!function(){var t=Math.min,e=Math.max;fabric.util.object.extend(fabric.Canvas.prototype,{_shouldGroup:function(t,e){var i=this._activeObject;return i&&this._isSelectionKeyPressed(t)&&e&&e.selectable&&this.selection&&(i!==e||"activeSelection"===i.type)&&!e.onSelect({e:t})},_handleGrouping:function(t,e){var i=this._activeObject;i.__corner||(e!==i||(e=this.findTarget(t,!0),e&&e.selectable))&&(i&&"activeSelection"===i.type?this._updateActiveSelection(e,t):this._createActiveSelection(e,t))},_updateActiveSelection:function(t,e){var i=this._activeObject,r=i._objects.slice(0);i.contains(t)?(i.removeWithUpdate(t),this._hoveredTarget=t,this._hoveredTargets=this.targets.concat(),1===i.size()&&this._setActiveObject(i.item(0),e)):(i.addWithUpdate(t),this._hoveredTarget=i,this._hoveredTargets=this.targets.concat()),this._fireSelectionEvents(r,e)},_createActiveSelection:function(t,e){var i=this.getActiveObjects(),r=this._createGroup(t);this._hoveredTarget=r,this._setActiveObject(r,e),this._fireSelectionEvents(i,e)},_createGroup:function(t){var e=this._objects,i=e.indexOf(this._activeObject)1&&(e=new fabric.ActiveSelection(i.reverse(),{canvas:this}),this.setActiveObject(e,t))},_collectObjects:function(i){for(var r,n=[],s=this._groupSelector.ex,a=this._groupSelector.ey,o=s+this._groupSelector.left,c=a+this._groupSelector.top,l=new fabric.Point(t(s,o),t(a,c)),h=new fabric.Point(e(s,o),e(a,c)),u=!this.selectionFullyContained,f=s===o&&a===c,d=this._objects.length;d--&&(r=this._objects[d],!(r&&r.selectable&&r.visible&&(u&&r.intersectsWithRect(l,h,!0)||r.isContainedWithinRect(l,h,!0)||u&&r.containsPoint(l,null,!0)||u&&r.containsPoint(h,null,!0))&&(n.push(r),f))););return n.length>1&&(n=n.filter(function(t){return!t.onSelect({e:i})})),n},_maybeGroupObjects:function(t){this.selection&&this._groupSelector&&this._groupSelectedObjects(t),this.setCursor(this.defaultCursor),this._groupSelector=null}})}();!function(){fabric.util.object.extend(fabric.StaticCanvas.prototype,{toDataURL:function(t){t||(t={});var e=t.format||"png",i=t.quality||1,r=(t.multiplier||1)*(t.enableRetinaScaling?this.getRetinaScaling():1),n=this.toCanvasElement(r,t);return fabric.util.toDataURL(n,e,i)},toCanvasElement:function(t,e){t=t||1,e=e||{};var i=(e.width||this.width)*t,r=(e.height||this.height)*t,n=this.getZoom(),s=this.width,a=this.height,o=n*t,c=this.viewportTransform,l=(c[4]-(e.left||0))*t,h=(c[5]-(e.top||0))*t,u=this.interactive,f=[o,0,0,o,l,h],d=this.enableRetinaScaling,g=fabric.util.createCanvasElement(),p=this.contextTop;return g.width=i,g.height=r,this.contextTop=null,this.enableRetinaScaling=!1,this.interactive=!1,this.viewportTransform=f,this.width=i,this.height=r,this.calcViewportBoundaries(),this.renderCanvas(g.getContext("2d"),this._objects),this.viewportTransform=c,this.width=s,this.height=a,this.calcViewportBoundaries(),this.interactive=u,this.enableRetinaScaling=d,this.contextTop=p,g}})}();fabric.util.object.extend(fabric.StaticCanvas.prototype,{loadFromJSON:function(t,e,i){if(t){var r="string"==typeof t?JSON.parse(t):fabric.util.object.clone(t),n=this,a=r.clipPath,s=this.renderOnAddRemove;return this.renderOnAddRemove=!1,delete r.clipPath,this._enlivenObjects(r.objects,function(t){n.clear(),n._setBgOverlay(r,function(){a?n._enlivenObjects([a],function(i){n.clipPath=i[0],n.__setupCanvas.call(n,r,t,s,e)}):n.__setupCanvas.call(n,r,t,s,e)})},i),this}},__setupCanvas:function(t,e,i,r){var n=this;e.forEach(function(t,e){n.insertAt(t,e)}),this.renderOnAddRemove=i,delete t.objects,delete t.backgroundImage,delete t.overlayImage,delete t.background,delete t.overlay,this._setOptions(t),this.renderAll(),r&&r()},_setBgOverlay:function(t,e){var i={backgroundColor:!1,overlayColor:!1,backgroundImage:!1,overlayImage:!1};if(!(t.backgroundImage||t.overlayImage||t.background||t.overlay))return void(e&&e());var r=function(){i.backgroundImage&&i.overlayImage&&i.backgroundColor&&i.overlayColor&&e&&e()};this.__setBgOverlay("backgroundImage",t.backgroundImage,i,r),this.__setBgOverlay("overlayImage",t.overlayImage,i,r),this.__setBgOverlay("backgroundColor",t.background,i,r),this.__setBgOverlay("overlayColor",t.overlay,i,r)},__setBgOverlay:function(t,e,i,r){var n=this;return e?void("backgroundImage"===t||"overlayImage"===t?fabric.util.enlivenObjects([e],function(e){n[t]=e[0],i[t]=!0,r&&r()}):this["set"+fabric.util.string.capitalize(t,!0)](e,function(){i[t]=!0,r&&r()})):(i[t]=!0,void(r&&r()))},_enlivenObjects:function(t,e,i){return t&&0!==t.length?void fabric.util.enlivenObjects(t,function(t){e&&e(t)},null,i):void(e&&e([]))},_toDataURL:function(t,e){this.clone(function(i){e(i.toDataURL(t))})},_toDataURLWithMultiplier:function(t,e,i){this.clone(function(r){i(r.toDataURLWithMultiplier(t,e))})},clone:function(t,e){var i=JSON.stringify(this.toJSON(e));this.cloneWithoutData(function(e){e.loadFromJSON(i,function(){t&&t(e)})})},cloneWithoutData:function(t){var e=fabric.util.createCanvasElement();e.width=this.width,e.height=this.height;var i=new fabric.Canvas(e);this.backgroundImage?(i.setBackgroundImage(this.backgroundImage.src,function(){i.renderAll(),t&&t(i)}),i.backgroundImageOpacity=this.backgroundImageOpacity,i.backgroundImageStretch=this.backgroundImageStretch):t&&t(i)}});!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.object.extend,r=e.util.object.clone,n=e.util.toFixed,s=e.util.string.capitalize,a=e.util.degreesToRadians,o=!e.isLikelyNode,c=2;e.Object||(e.Object=e.util.createClass(e.CommonMethods,{type:"object",originX:"left",originY:"top",top:0,left:0,width:0,height:0,scaleX:1,scaleY:1,flipX:!1,flipY:!1,opacity:1,angle:0,skewX:0,skewY:0,cornerSize:13,touchCornerSize:24,transparentCorners:!0,hoverCursor:null,moveCursor:null,padding:0,borderColor:"rgb(178,204,255)",borderDashArray:null,cornerColor:"rgb(178,204,255)",cornerStrokeColor:null,cornerStyle:"rect",cornerDashArray:null,centeredScaling:!1,centeredRotation:!0,fill:"rgb(0,0,0)",fillRule:"nonzero",globalCompositeOperation:"source-over",backgroundColor:"",selectionBackgroundColor:"",stroke:null,strokeWidth:1,strokeDashArray:null,strokeDashOffset:0,strokeLineCap:"butt",strokeLineJoin:"miter",strokeMiterLimit:4,shadow:null,borderOpacityWhenMoving:.4,borderScaleFactor:1,minScaleLimit:0,selectable:!0,evented:!0,visible:!0,hasControls:!0,hasBorders:!0,perPixelTargetFind:!1,includeDefaultValues:!0,lockMovementX:!1,lockMovementY:!1,lockRotation:!1,lockScalingX:!1,lockScalingY:!1,lockSkewingX:!1,lockSkewingY:!1,lockScalingFlip:!1,excludeFromExport:!1,objectCaching:o,statefullCache:!1,noScaleCache:!0,strokeUniform:!1,dirty:!0,__corner:0,paintFirst:"fill",activeOn:"down",stateProperties:"top left width height scaleX scaleY flipX flipY originX originY transformMatrix stroke strokeWidth strokeDashArray strokeLineCap strokeDashOffset strokeLineJoin strokeMiterLimit angle opacity fill globalCompositeOperation shadow visible backgroundColor skewX skewY fillRule paintFirst clipPath strokeUniform".split(" "),cacheProperties:"fill stroke strokeWidth strokeDashArray width height paintFirst strokeUniform strokeLineCap strokeDashOffset strokeLineJoin strokeMiterLimit backgroundColor clipPath".split(" "),colorProperties:"fill stroke backgroundColor".split(" "),clipPath:void 0,inverted:!1,absolutePositioned:!1,initialize:function(t){t&&this.setOptions(t)},_createCacheCanvas:function(){this._cacheProperties={},this._cacheCanvas=e.util.createCanvasElement(),this._cacheContext=this._cacheCanvas.getContext("2d"),this._updateCacheCanvas(),this.dirty=!0},_limitCacheSize:function(t){var i=e.perfLimitSizeTotal,r=t.width,n=t.height,s=e.maxCacheSideLimit,a=e.minCacheSideLimit;if(s>=r&&s>=n&&i>=r*n)return a>r&&(t.width=a),a>n&&(t.height=a),t;var o=r/n,c=e.util.limitDimsByArea(o,i),h=e.util.capValue,l=h(a,c.x,s),u=h(a,c.y,s);return r>l&&(t.zoomX/=r/l,t.width=l,t.capped=!0),n>u&&(t.zoomY/=n/u,t.height=u,t.capped=!0),t},_getCacheCanvasDimensions:function(){var t=this.getTotalObjectScaling(),e=this._getTransformedDimensions(0,0),i=e.x*t.scaleX/this.scaleX,r=e.y*t.scaleY/this.scaleY;return{width:i+c,height:r+c,zoomX:t.scaleX,zoomY:t.scaleY,x:i,y:r}},_updateCacheCanvas:function(){var t=this.canvas;if(this.noScaleCache&&t&&t._currentTransform){var i=t._currentTransform.target,r=t._currentTransform.action;if(this===i&&r.slice&&"scale"===r.slice(0,5))return!1}var n,s,a=this._cacheCanvas,o=this._limitCacheSize(this._getCacheCanvasDimensions()),c=e.minCacheSideLimit,h=o.width,l=o.height,u=o.zoomX,f=o.zoomY,d=h!==this.cacheWidth||l!==this.cacheHeight,g=this.zoomX!==u||this.zoomY!==f,p=d||g,v=0,b=0,m=!1;if(d){var y=this._cacheCanvas.width,_=this._cacheCanvas.height,w=h>y||l>_,C=(.9*y>h||.9*_>l)&&y>c&&_>c;m=w||C,w&&!o.capped&&(h>c||l>c)&&(v=.1*h,b=.1*l)}return this instanceof e.Text&&this.path&&(p=!0,m=!0,v+=this.getHeightOfLine(0)*this.zoomX,b+=this.getHeightOfLine(0)*this.zoomY),p?(m?(a.width=Math.ceil(h+v),a.height=Math.ceil(l+b)):(this._cacheContext.setTransform(1,0,0,1,0,0),this._cacheContext.clearRect(0,0,a.width,a.height)),n=o.x/2,s=o.y/2,this.cacheTranslationX=Math.round(a.width/2-n)+n,this.cacheTranslationY=Math.round(a.height/2-s)+s,this.cacheWidth=h,this.cacheHeight=l,this._cacheContext.translate(this.cacheTranslationX,this.cacheTranslationY),this._cacheContext.scale(u,f),this.zoomX=u,this.zoomY=f,!0):!1},setOptions:function(t){this._setOptions(t),this._initGradient(t.fill,"fill"),this._initGradient(t.stroke,"stroke"),this._initPattern(t.fill,"fill"),this._initPattern(t.stroke,"stroke")},transform:function(t){var e=this.group&&!this.group._transformDone||this.group&&this.canvas&&t===this.canvas.contextTop,i=this.calcTransformMatrix(!e);t.transform(i[0],i[1],i[2],i[3],i[4],i[5])},toObject:function(t){var i=e.Object.NUM_FRACTION_DIGITS,r={type:this.type,version:e.version,originX:this.originX,originY:this.originY,left:n(this.left,i),top:n(this.top,i),width:n(this.width,i),height:n(this.height,i),fill:this.fill&&this.fill.toObject?this.fill.toObject():this.fill,stroke:this.stroke&&this.stroke.toObject?this.stroke.toObject():this.stroke,strokeWidth:n(this.strokeWidth,i),strokeDashArray:this.strokeDashArray?this.strokeDashArray.concat():this.strokeDashArray,strokeLineCap:this.strokeLineCap,strokeDashOffset:this.strokeDashOffset,strokeLineJoin:this.strokeLineJoin,strokeUniform:this.strokeUniform,strokeMiterLimit:n(this.strokeMiterLimit,i),scaleX:n(this.scaleX,i),scaleY:n(this.scaleY,i),angle:n(this.angle,i),flipX:this.flipX,flipY:this.flipY,opacity:n(this.opacity,i),shadow:this.shadow&&this.shadow.toObject?this.shadow.toObject():this.shadow,visible:this.visible,backgroundColor:this.backgroundColor,fillRule:this.fillRule,paintFirst:this.paintFirst,globalCompositeOperation:this.globalCompositeOperation,skewX:n(this.skewX,i),skewY:n(this.skewY,i)};return this.clipPath&&!this.clipPath.excludeFromExport&&(r.clipPath=this.clipPath.toObject(t),r.clipPath.inverted=this.clipPath.inverted,r.clipPath.absolutePositioned=this.clipPath.absolutePositioned),e.util.populateWithProperties(this,r,t),this.includeDefaultValues||(r=this._removeDefaultValues(r)),r},toDatalessObject:function(t){return this.toObject(t)},_removeDefaultValues:function(t){var i=e.util.getKlass(t.type).prototype,r=i.stateProperties;return r.forEach(function(e){"left"!==e&&"top"!==e&&(t[e]===i[e]&&delete t[e],Array.isArray(t[e])&&Array.isArray(i[e])&&0===t[e].length&&0===i[e].length&&delete t[e])}),t},toString:function(){return"#"},getObjectScaling:function(){if(!this.group)return{scaleX:this.scaleX,scaleY:this.scaleY};var t=e.util.qrDecompose(this.calcTransformMatrix());return{scaleX:Math.abs(t.scaleX),scaleY:Math.abs(t.scaleY)}},getTotalObjectScaling:function(){var t=this.getObjectScaling(),e=t.scaleX,i=t.scaleY;if(this.canvas){var r=this.canvas.getZoom(),n=this.canvas.getRetinaScaling();e*=r*n,i*=r*n}return{scaleX:e,scaleY:i}},getObjectOpacity:function(){var t=this.opacity;return this.group&&(t*=this.group.getObjectOpacity()),t},_set:function(t,i){var r="scaleX"===t||"scaleY"===t,n=this[t]!==i,s=!1;return r&&(i=this._constrainScale(i)),"scaleX"===t&&0>i?(this.flipX=!this.flipX,i*=-1):"scaleY"===t&&0>i?(this.flipY=!this.flipY,i*=-1):"shadow"!==t||!i||i instanceof e.Shadow?"dirty"===t&&this.group&&this.group.set("dirty",i):i=new e.Shadow(i),this[t]=i,n&&(s=this.group&&this.group.isOnACache(),this.cacheProperties.indexOf(t)>-1?(this.dirty=!0,s&&this.group.set("dirty",!0)):s&&this.stateProperties.indexOf(t)>-1&&this.group.set("dirty",!0)),this},setOnGroup:function(){},getViewportTransform:function(){return this.canvas&&this.canvas.viewportTransform?this.canvas.viewportTransform:e.iMatrix.concat()},isNotVisible:function(){return 0===this.opacity||!this.width&&!this.height&&0===this.strokeWidth||!this.visible},render:function(t){this.isNotVisible()||(!this.canvas||!this.canvas.skipOffscreen||this.group||this.isOnScreen())&&(t.save(),this._setupCompositeOperation(t),this.drawSelectionBackground(t),this.transform(t),this._setOpacity(t),this._setShadow(t,this),this.shouldCache()?(this.renderCache(),this.drawCacheOnCanvas(t)):(this._removeCacheCanvas(),this.dirty=!1,this.drawObject(t),this.objectCaching&&this.statefullCache&&this.saveState({propertySet:"cacheProperties"})),t.restore())},renderCache:function(t){t=t||{},this._cacheCanvas&&this._cacheContext||this._createCacheCanvas(),this.isCacheDirty()&&(this.statefullCache&&this.saveState({propertySet:"cacheProperties"}),this.drawObject(this._cacheContext,t.forClipping),this.dirty=!1)},_removeCacheCanvas:function(){this._cacheCanvas=null,this._cacheContext=null,this.cacheWidth=0,this.cacheHeight=0},hasStroke:function(){return this.stroke&&"transparent"!==this.stroke&&0!==this.strokeWidth},hasFill:function(){return this.fill&&"transparent"!==this.fill},needsItsOwnCache:function(){return"stroke"===this.paintFirst&&this.hasFill()&&this.hasStroke()&&"object"==typeof this.shadow?!0:this.clipPath?!0:!1},shouldCache:function(){return this.ownCaching=this.needsItsOwnCache()||this.objectCaching&&(!this.group||!this.group.isOnACache()),this.ownCaching},willDrawShadow:function(){return!!this.shadow&&(0!==this.shadow.offsetX||0!==this.shadow.offsetY)},drawClipPathOnCache:function(t,i){if(t.save(),t.globalCompositeOperation=i.inverted?"destination-out":"destination-in",i.absolutePositioned){var r=e.util.invertTransform(this.calcTransformMatrix());t.transform(r[0],r[1],r[2],r[3],r[4],r[5])}i.transform(t),t.scale(1/i.zoomX,1/i.zoomY),t.drawImage(i._cacheCanvas,-i.cacheTranslationX,-i.cacheTranslationY),t.restore()},drawObject:function(t,e){var i=this.fill,r=this.stroke;e?(this.fill="black",this.stroke="",this._setClippingProperties(t)):this._renderBackground(t),this._render(t),this._drawClipPath(t,this.clipPath),this.fill=i,this.stroke=r},_drawClipPath:function(t,e){e&&(e.canvas=this.canvas,e.shouldCache(),e._transformDone=!0,e.renderCache({forClipping:!0}),this.drawClipPathOnCache(t,e))},drawCacheOnCanvas:function(t){t.scale(1/this.zoomX,1/this.zoomY),t.drawImage(this._cacheCanvas,-this.cacheTranslationX,-this.cacheTranslationY)},isCacheDirty:function(t){if(this.isNotVisible())return!1;if(this._cacheCanvas&&this._cacheContext&&!t&&this._updateCacheCanvas())return!0;if(this.dirty||this.clipPath&&this.clipPath.absolutePositioned||this.statefullCache&&this.hasStateChanged("cacheProperties")){if(this._cacheCanvas&&this._cacheContext&&!t){var e=this.cacheWidth/this.zoomX,i=this.cacheHeight/this.zoomY;this._cacheContext.clearRect(-e/2,-i/2,e,i)}return!0}return!1},_renderBackground:function(t){if(this.backgroundColor){var e=this._getNonTransformedDimensions();t.fillStyle=this.backgroundColor,t.fillRect(-e.x/2,-e.y/2,e.x,e.y),this._removeShadow(t)}},_setOpacity:function(t){this.group&&!this.group._transformDone?t.globalAlpha=this.getObjectOpacity():t.globalAlpha*=this.opacity},_setStrokeStyles:function(t,e){var i=e.stroke;i&&(t.lineWidth=e.strokeWidth,t.lineCap=e.strokeLineCap,t.lineDashOffset=e.strokeDashOffset,t.lineJoin=e.strokeLineJoin,t.miterLimit=e.strokeMiterLimit,i.toLive?"percentage"===i.gradientUnits||i.gradientTransform||i.patternTransform?this._applyPatternForTransformedGradient(t,i):(t.strokeStyle=i.toLive(t,this),this._applyPatternGradientTransform(t,i)):t.strokeStyle=e.stroke)},_setFillStyles:function(t,e){var i=e.fill;i&&(i.toLive?(t.fillStyle=i.toLive(t,this),this._applyPatternGradientTransform(t,e.fill)):t.fillStyle=i)},_setClippingProperties:function(t){t.globalAlpha=1,t.strokeStyle="transparent",t.fillStyle="#000000"},_setLineDash:function(t,e){e&&0!==e.length&&(1&e.length&&e.push.apply(e,e),t.setLineDash(e))},_renderControls:function(t,i){var r,n,s,o=this.getViewportTransform(),c=this.calcTransformMatrix();i=i||{},n="undefined"!=typeof i.hasBorders?i.hasBorders:this.hasBorders,s="undefined"!=typeof i.hasControls?i.hasControls:this.hasControls,c=e.util.multiplyTransformMatrices(o,c),r=e.util.qrDecompose(c),t.save(),t.translate(r.translateX,r.translateY),t.lineWidth=1*this.borderScaleFactor,this.group||(t.globalAlpha=this.isMoving?this.borderOpacityWhenMoving:1),this.flipX&&(r.angle-=180),t.rotate(a(this.group?r.angle:this.angle)),i.forActiveSelection||this.group?n&&this.drawBordersInGroup(t,r,i):n&&this.drawBorders(t,i),s&&this.drawControls(t,i),t.restore()},_setShadow:function(t){if(this.shadow){var i,r=this.shadow,n=this.canvas,s=n&&n.viewportTransform[0]||1,a=n&&n.viewportTransform[3]||1;i=r.nonScaling?{scaleX:1,scaleY:1}:this.getObjectScaling(),n&&n._isRetinaScaling()&&(s*=e.devicePixelRatio,a*=e.devicePixelRatio),t.shadowColor=r.color,t.shadowBlur=r.blur*e.browserShadowBlurConstant*(s+a)*(i.scaleX+i.scaleY)/4,t.shadowOffsetX=r.offsetX*s*i.scaleX,t.shadowOffsetY=r.offsetY*a*i.scaleY}},_removeShadow:function(t){this.shadow&&(t.shadowColor="",t.shadowBlur=t.shadowOffsetX=t.shadowOffsetY=0)},_applyPatternGradientTransform:function(t,e){if(!e||!e.toLive)return{offsetX:0,offsetY:0};var i=e.gradientTransform||e.patternTransform,r=-this.width/2+e.offsetX||0,n=-this.height/2+e.offsetY||0;return"percentage"===e.gradientUnits?t.transform(this.width,0,0,this.height,r,n):t.transform(1,0,0,1,r,n),i&&t.transform(i[0],i[1],i[2],i[3],i[4],i[5]),{offsetX:r,offsetY:n}},_renderPaintInOrder:function(t){"stroke"===this.paintFirst?(this._renderStroke(t),this._renderFill(t)):(this._renderFill(t),this._renderStroke(t))},_render:function(){},_renderFill:function(t){this.fill&&(t.save(),this._setFillStyles(t,this),"evenodd"===this.fillRule?t.fill("evenodd"):t.fill(),t.restore())},_renderStroke:function(t){if(this.stroke&&0!==this.strokeWidth){if(this.shadow&&!this.shadow.affectStroke&&this._removeShadow(t),t.save(),this.strokeUniform&&this.group){var e=this.getObjectScaling();t.scale(1/e.scaleX,1/e.scaleY)}else this.strokeUniform&&t.scale(1/this.scaleX,1/this.scaleY);this._setLineDash(t,this.strokeDashArray),this._setStrokeStyles(t,this),t.stroke(),t.restore()}},_applyPatternForTransformedGradient:function(t,i){var r,n=this._limitCacheSize(this._getCacheCanvasDimensions()),s=e.util.createCanvasElement(),a=this.canvas.getRetinaScaling(),o=n.x/this.scaleX/a,c=n.y/this.scaleY/a;s.width=o,s.height=c,r=s.getContext("2d"),r.beginPath(),r.moveTo(0,0),r.lineTo(o,0),r.lineTo(o,c),r.lineTo(0,c),r.closePath(),r.translate(o/2,c/2),r.scale(n.zoomX/this.scaleX/a,n.zoomY/this.scaleY/a),this._applyPatternGradientTransform(r,i),r.fillStyle=i.toLive(t),r.fill(),t.translate(-this.width/2-this.strokeWidth/2,-this.height/2-this.strokeWidth/2),t.scale(a*this.scaleX/n.zoomX,a*this.scaleY/n.zoomY),t.strokeStyle=r.createPattern(s,"no-repeat")},_findCenterFromElement:function(){return{x:this.left+this.width/2,y:this.top+this.height/2}},_assignTransformMatrixProps:function(){if(this.transformMatrix){var t=e.util.qrDecompose(this.transformMatrix);this.flipX=!1,this.flipY=!1,this.set("scaleX",t.scaleX),this.set("scaleY",t.scaleY),this.angle=t.angle,this.skewX=t.skewX,this.skewY=0}},_removeTransformMatrix:function(t){var i=this._findCenterFromElement();this.transformMatrix&&(this._assignTransformMatrixProps(),i=e.util.transformPoint(i,this.transformMatrix)),this.transformMatrix=null,t&&(this.scaleX*=t.scaleX,this.scaleY*=t.scaleY,this.cropX=t.cropX,this.cropY=t.cropY,i.x+=t.offsetLeft,i.y+=t.offsetTop,this.width=t.width,this.height=t.height),this.setPositionByOrigin(i,"center","center")},clone:function(t,i){var r=this.toObject(i);this.constructor.fromObject?this.constructor.fromObject(r,t):e.Object._fromObject("Object",r,t)},cloneAsImage:function(t,i){var r=this.toCanvasElement(i);return t&&t(new e.Image(r)),this},toCanvasElement:function(t){t||(t={});var i=e.util,r=i.saveObjectTransform(this),n=this.group,s=this.shadow,a=Math.abs,o=(t.multiplier||1)*(t.enableRetinaScaling?e.devicePixelRatio:1);delete this.group,t.withoutTransform&&i.resetObjectTransform(this),t.withoutShadow&&(this.shadow=null);var c,h,l,u,f=e.util.createCanvasElement(),d=this.getBoundingRect(!0,!0),g=this.shadow,p={x:0,y:0};g&&(h=g.blur,c=g.nonScaling?{scaleX:1,scaleY:1}:this.getObjectScaling(),p.x=2*Math.round(a(g.offsetX)+h)*a(c.scaleX),p.y=2*Math.round(a(g.offsetY)+h)*a(c.scaleY)),l=d.width+p.x,u=d.height+p.y,f.width=Math.ceil(l),f.height=Math.ceil(u);var v=new e.StaticCanvas(f,{enableRetinaScaling:!1,renderOnAddRemove:!1,skipOffscreen:!1});"jpeg"===t.format&&(v.backgroundColor="#fff"),this.setPositionByOrigin(new e.Point(v.width/2,v.height/2),"center","center");var b=this.canvas;v.add(this);var m=v.toCanvasElement(o||1,t);return this.shadow=s,this.set("canvas",b),n&&(this.group=n),this.set(r).setCoords(),v._objects=[],v.dispose(),v=null,m},toDataURL:function(t){return t||(t={}),e.util.toDataURL(this.toCanvasElement(t),t.format||"png",t.quality||1)},isType:function(t){return arguments.length>1?Array.from(arguments).includes(this.type):this.type===t},complexity:function(){return 1},toJSON:function(t){return this.toObject(t)},rotate:function(t){var e=("center"!==this.originX||"center"!==this.originY)&&this.centeredRotation;return e&&this._setOriginToCenter(),this.set("angle",t),e&&this._resetOrigin(),this},centerH:function(){return this.canvas&&this.canvas.centerObjectH(this),this},viewportCenterH:function(){return this.canvas&&this.canvas.viewportCenterObjectH(this),this},centerV:function(){return this.canvas&&this.canvas.centerObjectV(this),this},viewportCenterV:function(){return this.canvas&&this.canvas.viewportCenterObjectV(this),this},center:function(){return this.canvas&&this.canvas.centerObject(this),this},viewportCenter:function(){return this.canvas&&this.canvas.viewportCenterObject(this),this},getLocalPointer:function(t,i){i=i||this.canvas.getPointer(t);var r=new e.Point(i.x,i.y),n=this._getLeftTopCoords();return this.angle&&(r=e.util.rotatePoint(r,n,a(-this.angle))),{x:r.x-n.x,y:r.y-n.y}},_setupCompositeOperation:function(t){this.globalCompositeOperation&&(t.globalCompositeOperation=this.globalCompositeOperation)},dispose:function(){e.runningAnimations&&e.runningAnimations.cancelByTarget(this)}}),e.util.createAccessors&&e.util.createAccessors(e.Object),i(e.Object.prototype,e.Observable),e.Object.NUM_FRACTION_DIGITS=2,e.Object.ENLIVEN_PROPS=["clipPath"],e.Object._fromObject=function(t,i,n,s){var a=e[t];i=r(i,!0),e.util.enlivenPatterns([i.fill,i.stroke],function(t){"undefined"!=typeof t[0]&&(i.fill=t[0]),"undefined"!=typeof t[1]&&(i.stroke=t[1]),e.util.enlivenObjectEnlivables(i,i,function(){var t=s?new a(i[s],i):new a(i);n&&n(t)})})},e.Object.__uid=0)}("undefined"!=typeof exports?exports:this);!function(){var t=fabric.util.degreesToRadians,e={left:-.5,center:0,right:.5},i={top:-.5,center:0,bottom:.5};fabric.util.object.extend(fabric.Object.prototype,{translateToGivenOrigin:function(t,r,n,s,a){var o,c,h,l=t.x,u=t.y;return"string"==typeof r?r=e[r]:r-=.5,"string"==typeof s?s=e[s]:s-=.5,o=s-r,"string"==typeof n?n=i[n]:n-=.5,"string"==typeof a?a=i[a]:a-=.5,c=a-n,(o||c)&&(h=this._getTransformedDimensions(),l=t.x+o*h.x,u=t.y+c*h.y),new fabric.Point(l,u)},translateToCenterPoint:function(e,i,r){var n=this.translateToGivenOrigin(e,i,r,"center","center");return this.angle?fabric.util.rotatePoint(n,e,t(this.angle)):n},translateToOriginPoint:function(e,i,r){var n=this.translateToGivenOrigin(e,"center","center",i,r);return this.angle?fabric.util.rotatePoint(n,e,t(this.angle)):n},getCenterPoint:function(){var t=new fabric.Point(this.left,this.top);return this.translateToCenterPoint(t,this.originX,this.originY)},getPointByOrigin:function(t,e){var i=this.getCenterPoint();return this.translateToOriginPoint(i,t,e)},toLocalPoint:function(e,i,r){var n,s,a=this.getCenterPoint();return n="undefined"!=typeof i&&"undefined"!=typeof r?this.translateToGivenOrigin(a,"center","center",i,r):new fabric.Point(this.left,this.top),s=new fabric.Point(e.x,e.y),this.angle&&(s=fabric.util.rotatePoint(s,a,-t(this.angle))),s.subtractEquals(n)},setPositionByOrigin:function(t,e,i){var r=this.translateToCenterPoint(t,e,i),n=this.translateToOriginPoint(r,this.originX,this.originY);this.set("left",n.x),this.set("top",n.y)},adjustPosition:function(i){var r,n,s=t(this.angle),a=this.getScaledWidth(),o=fabric.util.cos(s)*a,c=fabric.util.sin(s)*a;r="string"==typeof this.originX?e[this.originX]:this.originX-.5,n="string"==typeof i?e[i]:i-.5,this.left+=o*(n-r),this.top+=c*(n-r),this.setCoords(),this.originX=i},_setOriginToCenter:function(){this._originalOriginX=this.originX,this._originalOriginY=this.originY;var t=this.getCenterPoint();this.originX="center",this.originY="center",this.left=t.x,this.top=t.y},_resetOrigin:function(){var t=this.translateToOriginPoint(this.getCenterPoint(),this._originalOriginX,this._originalOriginY);this.originX=this._originalOriginX,this.originY=this._originalOriginY,this.left=t.x,this.top=t.y,this._originalOriginX=null,this._originalOriginY=null},_getLeftTopCoords:function(){return this.translateToOriginPoint(this.getCenterPoint(),"left","top")}})}();!function(){function t(t){return[new fabric.Point(t.tl.x,t.tl.y),new fabric.Point(t.tr.x,t.tr.y),new fabric.Point(t.br.x,t.br.y),new fabric.Point(t.bl.x,t.bl.y)]}var e=fabric.util,i=e.degreesToRadians,r=e.multiplyTransformMatrices,n=e.transformPoint;e.object.extend(fabric.Object.prototype,{oCoords:null,aCoords:null,lineCoords:null,ownMatrixCache:null,matrixCache:null,controls:{},_getCoords:function(t,e){return e?t?this.calcACoords():this.calcLineCoords():(this.aCoords&&this.lineCoords||this.setCoords(!0),t?this.aCoords:this.lineCoords)},getCoords:function(e,i){return t(this._getCoords(e,i))},intersectsWithRect:function(t,e,i,r){var n=this.getCoords(i,r),s=fabric.Intersection.intersectPolygonRectangle(n,t,e);return"Intersection"===s.status},intersectsWithObject:function(t,e,i){var r=fabric.Intersection.intersectPolygonPolygon(this.getCoords(e,i),t.getCoords(e,i));return"Intersection"===r.status||t.isContainedWithinObject(this,e,i)||this.isContainedWithinObject(t,e,i)},isContainedWithinObject:function(t,e,i){for(var r=this.getCoords(e,i),n=e?t.aCoords:t.lineCoords,s=0,a=t._getImageLines(n);4>s;s++)if(!t.containsPoint(r[s],a))return!1;return!0},isContainedWithinRect:function(t,e,i,r){var n=this.getBoundingRect(i,r);return n.left>=t.x&&n.left+n.width<=e.x&&n.top>=t.y&&n.top+n.height<=e.y},containsPoint:function(t,e,i,r){var n=this._getCoords(i,r),e=e||this._getImageLines(n),s=this._findCrossPoints(t,e);return 0!==s&&s%2===1},isOnScreen:function(t){if(!this.canvas)return!1;var e=this.canvas.vptCoords.tl,i=this.canvas.vptCoords.br,r=this.getCoords(!0,t);return r.some(function(t){return t.x<=i.x&&t.x>=e.x&&t.y<=i.y&&t.y>=e.y})?!0:this.intersectsWithRect(e,i,!0,t)?!0:this._containsCenterOfCanvas(e,i,t)},_containsCenterOfCanvas:function(t,e,i){var r={x:(t.x+e.x)/2,y:(t.y+e.y)/2};return this.containsPoint(r,null,!0,i)?!0:!1},isPartiallyOnScreen:function(t){if(!this.canvas)return!1;var e=this.canvas.vptCoords.tl,i=this.canvas.vptCoords.br;if(this.intersectsWithRect(e,i,!0,t))return!0;var r=this.getCoords(!0,t).every(function(t){return(t.x>=i.x||t.x<=e.x)&&(t.y>=i.y||t.y<=e.y)});return r&&this._containsCenterOfCanvas(e,i,t)},_getImageLines:function(t){var e={topline:{o:t.tl,d:t.tr},rightline:{o:t.tr,d:t.br},bottomline:{o:t.br,d:t.bl},leftline:{o:t.bl,d:t.tl}};return e},_findCrossPoints:function(t,e){var i,r,n,s,a,o,c=0;for(var h in e)if(o=e[h],!(o.o.y=t.y&&o.d.y>=t.y||(o.o.x===o.d.x&&o.o.x>=t.x?a=o.o.x:(i=0,r=(o.d.y-o.o.y)/(o.d.x-o.o.x),n=t.y-i*t.x,s=o.o.y-r*o.o.x,a=-(n-s)/(i-r)),a>=t.x&&(c+=1),2!==c)))break;return c},getBoundingRect:function(t,i){var r=this.getCoords(t,i);return e.makeBoundingBoxFromPoints(r)},getScaledWidth:function(){return this._getTransformedDimensions().x},getScaledHeight:function(){return this._getTransformedDimensions().y},_constrainScale:function(t){return Math.abs(t)t?-this.minScaleLimit:this.minScaleLimit:0===t?1e-4:t},scale:function(t){return this._set("scaleX",t),this._set("scaleY",t),this.setCoords()},scaleToWidth:function(t,e){var i=this.getBoundingRect(e).width/this.getScaledWidth();return this.scale(t/this.width/i)},scaleToHeight:function(t,e){var i=this.getBoundingRect(e).height/this.getScaledHeight();return this.scale(t/this.height/i)},calcLineCoords:function(){var t=this.getViewportTransform(),r=this.padding,s=i(this.angle),a=e.cos(s),o=e.sin(s),c=a*r,h=o*r,l=c+h,u=c-h,f=this.calcACoords(),d={tl:n(f.tl,t),tr:n(f.tr,t),bl:n(f.bl,t),br:n(f.br,t)};return r&&(d.tl.x-=u,d.tl.y-=l,d.tr.x+=l,d.tr.y-=u,d.bl.x-=l,d.bl.y+=u,d.br.x+=u,d.br.y+=l),d},calcOCoords:function(){var t=this._calcRotateMatrix(),e=this._calcTranslateMatrix(),i=this.getViewportTransform(),n=r(i,e),s=r(n,t),s=r(s,[1/i[0],0,0,1/i[3],0,0]),a=this._calculateCurrentDimensions(),o={};return this.forEachControl(function(t,e,i){o[e]=t.positionHandler(a,s,i)}),o},calcACoords:function(){var t=this._calcRotateMatrix(),e=this._calcTranslateMatrix(),i=r(e,t),s=this._getTransformedDimensions(),a=s.x/2,o=s.y/2;return{tl:n({x:-a,y:-o},i),tr:n({x:a,y:-o},i),bl:n({x:-a,y:o},i),br:n({x:a,y:o},i)}},setCoords:function(t){return this.aCoords=this.calcACoords(),this.lineCoords=this.group?this.aCoords:this.calcLineCoords(),t?this:(this.oCoords=this.calcOCoords(),this._setCornerCoords&&this._setCornerCoords(),this)},_calcRotateMatrix:function(){return e.calcRotateMatrix(this)},_calcTranslateMatrix:function(){var t=this.getCenterPoint();return[1,0,0,1,t.x,t.y]},transformMatrixKey:function(t){var e="_",i="";return!t&&this.group&&(i=this.group.transformMatrixKey(t)+e),i+this.top+e+this.left+e+this.scaleX+e+this.scaleY+e+this.skewX+e+this.skewY+e+this.angle+e+this.originX+e+this.originY+e+this.width+e+this.height+e+this.strokeWidth+this.flipX+this.flipY},calcTransformMatrix:function(t){var e=this.calcOwnMatrix();if(t||!this.group)return e;var i=this.transformMatrixKey(t),n=this.matrixCache||(this.matrixCache={});return n.key===i?n.value:(this.group&&(e=r(this.group.calcTransformMatrix(!1),e)),n.key=i,n.value=e,e)},calcOwnMatrix:function(){var t=this.transformMatrixKey(!0),i=this.ownMatrixCache||(this.ownMatrixCache={});if(i.key===t)return i.value;var r=this._calcTranslateMatrix(),n={angle:this.angle,translateX:r[4],translateY:r[5],scaleX:this.scaleX,scaleY:this.scaleY,skewX:this.skewX,skewY:this.skewY,flipX:this.flipX,flipY:this.flipY};return i.key=t,i.value=e.composeMatrix(n),i.value},_getNonTransformedDimensions:function(){var t=this.strokeWidth,e=this.width+t,i=this.height+t;return{x:e,y:i}},_getTransformedDimensions:function(t,i){"undefined"==typeof t&&(t=this.skewX),"undefined"==typeof i&&(i=this.skewY);var r,n,s,a=0===t&&0===i;if(this.strokeUniform?(n=this.width,s=this.height):(r=this._getNonTransformedDimensions(),n=r.x,s=r.y),a)return this._finalizeDimensions(n*this.scaleX,s*this.scaleY);var o=e.sizeAfterTransform(n,s,{scaleX:this.scaleX,scaleY:this.scaleY,skewX:t,skewY:i});return this._finalizeDimensions(o.x,o.y)},_finalizeDimensions:function(t,e){return this.strokeUniform?{x:t+this.strokeWidth,y:e+this.strokeWidth}:{x:t,y:e}},_calculateCurrentDimensions:function(){var t=this.getViewportTransform(),e=this._getTransformedDimensions(),i=n(e,t,!0);return i.scalarAdd(2*this.padding)}})}();fabric.util.object.extend(fabric.Object.prototype,{sendToBack:function(){return this.group?fabric.StaticCanvas.prototype.sendToBack.call(this.group,this):this.canvas&&this.canvas.sendToBack(this),this},bringToFront:function(){return this.group?fabric.StaticCanvas.prototype.bringToFront.call(this.group,this):this.canvas&&this.canvas.bringToFront(this),this},sendBackwards:function(t){return this.group?fabric.StaticCanvas.prototype.sendBackwards.call(this.group,this,t):this.canvas&&this.canvas.sendBackwards(this,t),this},bringForward:function(t){return this.group?fabric.StaticCanvas.prototype.bringForward.call(this.group,this,t):this.canvas&&this.canvas.bringForward(this,t),this},moveTo:function(t){return this.group&&"activeSelection"!==this.group.type?fabric.StaticCanvas.prototype.moveTo.call(this.group,this,t):this.canvas&&this.canvas.moveTo(this,t),this}});!function(){function t(t,e){if(e){if(e.toLive)return t+": url(#SVGID_"+e.id+"); ";var i=new fabric.Color(e),r=t+": "+i.toRgb()+"; ",n=i.getAlpha();return 1!==n&&(r+=t+"-opacity: "+n.toString()+"; "),r}return t+": none; "}var e=fabric.util.toFixed;fabric.util.object.extend(fabric.Object.prototype,{getSvgStyles:function(e){var i=this.fillRule?this.fillRule:"nonzero",r=this.strokeWidth?this.strokeWidth:"0",n=this.strokeDashArray?this.strokeDashArray.join(" "):"none",s=this.strokeDashOffset?this.strokeDashOffset:"0",o=this.strokeLineCap?this.strokeLineCap:"butt",a=this.strokeLineJoin?this.strokeLineJoin:"miter",c=this.strokeMiterLimit?this.strokeMiterLimit:"4",h="undefined"!=typeof this.opacity?this.opacity:"1",l=this.visible?"":" visibility: hidden;",u=e?"":this.getSvgFilter(),f=t("fill",this.fill),d=t("stroke",this.stroke);return[d,"stroke-width: ",r,"; ","stroke-dasharray: ",n,"; ","stroke-linecap: ",o,"; ","stroke-dashoffset: ",s,"; ","stroke-linejoin: ",a,"; ","stroke-miterlimit: ",c,"; ",f,"fill-rule: ",i,"; ","opacity: ",h,";",u,l].join("")},getSvgSpanStyles:function(e,i){var r="; ",n=e.fontFamily?"font-family: "+(-1===e.fontFamily.indexOf("'")&&-1===e.fontFamily.indexOf('"')?"'"+e.fontFamily+"'":e.fontFamily)+r:"",s=e.strokeWidth?"stroke-width: "+e.strokeWidth+r:"",n=n,o=e.fontSize?"font-size: "+e.fontSize+"px"+r:"",a=e.fontStyle?"font-style: "+e.fontStyle+r:"",c=e.fontWeight?"font-weight: "+e.fontWeight+r:"",h=e.fill?t("fill",e.fill):"",l=e.stroke?t("stroke",e.stroke):"",u=this.getSvgTextDecoration(e),f=e.deltaY?"baseline-shift: "+-e.deltaY+"; ":"";return u&&(u="text-decoration: "+u+r),[l,s,n,o,a,c,u,h,f,i?"white-space: pre; ":""].join("")},getSvgTextDecoration:function(t){return["overline","underline","line-through"].filter(function(e){return t[e.replace("-","")]}).join(" ")},getSvgFilter:function(){return this.shadow?"filter: url(#SVGID_"+this.shadow.id+");":""},getSvgCommons:function(){return[this.id?'id="'+this.id+'" ':"",this.clipPath?'clip-path="url(#'+this.clipPath.clipPathId+')" ':""].join("")},getSvgTransform:function(t,e){var i=t?this.calcTransformMatrix():this.calcOwnMatrix(),r='transform="'+fabric.util.matrixToSVG(i);return r+(e||"")+'" '},_setSVGBg:function(t){if(this.backgroundColor){var i=fabric.Object.NUM_FRACTION_DIGITS;t.push(" \n')}},toSVG:function(t){return this._createBaseSVGMarkup(this._toSVG(t),{reviver:t})},toClipPathSVG:function(t){return" "+this._createBaseClipPathSVGMarkup(this._toSVG(t),{reviver:t})},_createBaseClipPathSVGMarkup:function(t,e){e=e||{};var i=e.reviver,r=e.additionalTransform||"",n=[this.getSvgTransform(!0,r),this.getSvgCommons()].join(""),s=t.indexOf("COMMON_PARTS");return t[s]=n,i?i(t.join("")):t.join("")},_createBaseSVGMarkup:function(t,e){e=e||{};var i,r,n=e.noStyle,s=e.reviver,o=n?"":'style="'+this.getSvgStyles()+'" ',a=e.withShadow?'style="'+this.getSvgFilter()+'" ':"",c=this.clipPath,h=this.strokeUniform?'vector-effect="non-scaling-stroke" ':"",l=c&&c.absolutePositioned,u=this.stroke,f=this.fill,d=this.shadow,g=[],p=t.indexOf("COMMON_PARTS"),v=e.additionalTransform;return c&&(c.clipPathId="CLIPPATH_"+fabric.Object.__uid++,r='\n'+c.toClipPathSVG(s)+"\n"),l&&g.push("\n"),g.push("\n"),i=[o,h,n?"":this.addPaintOrder()," ",v?'transform="'+v+'" ':""].join(""),t[p]=i,f&&f.toLive&&g.push(f.toSVG(this)),u&&u.toLive&&g.push(u.toSVG(this)),d&&g.push(d.toSVG(this)),c&&g.push(r),g.push(t.join("")),g.push("\n"),l&&g.push("\n"),s?s(g.join("")):g.join("")},addPaintOrder:function(){return"fill"!==this.paintFirst?' paint-order="'+this.paintFirst+'" ':""}})}();!function(){function t(t,e,r){var n={},s=!0;r.forEach(function(e){n[e]=t[e]}),i(t[e],n,s)}function e(t,i,r){if(t===i)return!0;if(Array.isArray(t)){if(!Array.isArray(i)||t.length!==i.length)return!1;for(var n=0,s=t.length;s>n;n++)if(!e(t[n],i[n]))return!1;return!0}if(t&&"object"==typeof t){var o,a=Object.keys(t);if(!i||"object"!=typeof i||!r&&a.length!==Object.keys(i).length)return!1;for(var n=0,s=a.length;s>n;n++)if(o=a[n],"canvas"!==o&&"group"!==o&&!e(t[o],i[o]))return!1;return!0}}var i=fabric.util.object.extend,r="stateProperties";fabric.util.object.extend(fabric.Object.prototype,{hasStateChanged:function(t){t=t||r;var i="_"+t;return Object.keys(this[i]).length=0;c--)if(n=a[c],this.isControlVisible(n)&&(r=this._getImageLines(e?this.oCoords[n].touchCorner:this.oCoords[n].corner),i=this._findCrossPoints({x:s,y:o},r),0!==i&&i%2===1))return this.__corner=n,n;return!1},forEachControl:function(t){for(var e in this.controls)t(this.controls[e],e,this)},_setCornerCoords:function(){var t=this.oCoords;for(var e in t){var i=this.controls[e];t[e].corner=i.calcCornerCoords(this.angle,this.cornerSize,t[e].x,t[e].y,!1),t[e].touchCorner=i.calcCornerCoords(this.angle,this.touchCornerSize,t[e].x,t[e].y,!0)}},drawSelectionBackground:function(e){if(!this.selectionBackgroundColor||this.canvas&&!this.canvas.interactive||this.canvas&&this.canvas._activeObject!==this)return this;e.save();var i=this.getCenterPoint(),r=this._calculateCurrentDimensions(),n=this.canvas.viewportTransform;return e.translate(i.x,i.y),e.scale(1/n[0],1/n[3]),e.rotate(t(this.angle)),e.fillStyle=this.selectionBackgroundColor,e.fillRect(-r.x/2,-r.y/2,r.x,r.y),e.restore(),this},drawBorders:function(t,e){e=e||{};var i=this._calculateCurrentDimensions(),r=this.borderScaleFactor,n=i.x+r,s=i.y+r,o="undefined"!=typeof e.hasControls?e.hasControls:this.hasControls,a=!1;return t.save(),t.strokeStyle=e.borderColor||this.borderColor,this._setLineDash(t,e.borderDashArray||this.borderDashArray),t.strokeRect(-n/2,-s/2,n,s),o&&(t.beginPath(),this.forEachControl(function(e,i,r){e.withConnection&&e.getVisibility(r,i)&&(a=!0,t.moveTo(e.x*n,e.y*s),t.lineTo(e.x*n+e.offsetX,e.y*s+e.offsetY))}),a&&t.stroke()),t.restore(),this},drawBordersInGroup:function(t,e,i){i=i||{};var r=fabric.util.sizeAfterTransform(this.width,this.height,e),n=this.strokeWidth,s=this.strokeUniform,o=this.borderScaleFactor,a=r.x+n*(s?this.canvas.getZoom():e.scaleX)+o,c=r.y+n*(s?this.canvas.getZoom():e.scaleY)+o;return t.save(),this._setLineDash(t,i.borderDashArray||this.borderDashArray),t.strokeStyle=i.borderColor||this.borderColor,t.strokeRect(-a/2,-c/2,a,c),t.restore(),this},drawControls:function(t,e){e=e||{},t.save();var i,r,n=this.canvas.getRetinaScaling();return t.setTransform(n,0,0,n,0,0),t.strokeStyle=t.fillStyle=e.cornerColor||this.cornerColor,this.transparentCorners||(t.strokeStyle=e.cornerStrokeColor||this.cornerStrokeColor),this._setLineDash(t,e.cornerDashArray||this.cornerDashArray),this.setCoords(),this.group&&(i=this.group.calcTransformMatrix()),this.forEachControl(function(n,s,o){r=o.oCoords[s],n.getVisibility(o,s)&&(i&&(r=fabric.util.transformPoint(r,i)),n.render(t,r.x,r.y,e,o))}),t.restore(),this},isControlVisible:function(t){return this.controls[t]&&this.controls[t].getVisibility(this,t)},setControlVisible:function(t,e){return this._controlsVisibility||(this._controlsVisibility={}),this._controlsVisibility[t]=e,this},setControlsVisibility:function(t){t||(t={});for(var e in t)this.setControlVisible(e,t[e]);return this},onDeselect:function(){},onSelect:function(){}})}();fabric.util.object.extend(fabric.StaticCanvas.prototype,{FX_DURATION:500,fxCenterObjectH:function(t,e){e=e||{};var i=function(){},r=e.onComplete||i,n=e.onChange||i,s=this;return fabric.util.animate({target:this,startValue:t.left,endValue:this.getCenterPoint().x,duration:this.FX_DURATION,onChange:function(e){t.set("left",e),s.requestRenderAll(),n()},onComplete:function(){t.setCoords(),r()}})},fxCenterObjectV:function(t,e){e=e||{};var i=function(){},r=e.onComplete||i,n=e.onChange||i,s=this;return fabric.util.animate({target:this,startValue:t.top,endValue:this.getCenterPoint().y,duration:this.FX_DURATION,onChange:function(e){t.set("top",e),s.requestRenderAll(),n()},onComplete:function(){t.setCoords(),r()}})},fxRemove:function(t,e){e=e||{};var i=function(){},r=e.onComplete||i,n=e.onChange||i,s=this;return fabric.util.animate({target:this,startValue:t.opacity,endValue:0,duration:this.FX_DURATION,onChange:function(e){t.set("opacity",e),s.requestRenderAll(),n()},onComplete:function(){s.remove(t),r()}})}}),fabric.util.object.extend(fabric.Object.prototype,{animate:function(){if(arguments[0]&&"object"==typeof arguments[0]){var t,e,i=[],r=[];for(t in arguments[0])i.push(t);for(var n=0,s=i.length;s>n;n++)t=i[n],e=n!==s-1,r.push(this._animate(t,arguments[0][t],arguments[1],e));return r}return this._animate.apply(this,arguments)},_animate:function(t,e,i,r){var n,s=this;e=e.toString(),i=i?fabric.util.object.clone(i):{},~t.indexOf(".")&&(n=t.split("."));var o=s.colorProperties.indexOf(t)>-1||n&&s.colorProperties.indexOf(n[1])>-1,a=n?this.get(n[0])[n[1]]:this.get(t);"from"in i||(i.from=a),o||(e=~e.indexOf("=")?a+parseFloat(e.replace("=","")):parseFloat(e));var c={target:this,startValue:i.from,endValue:e,byValue:i.by,easing:i.easing,duration:i.duration,abort:i.abort&&function(t,e,r){return i.abort.call(s,t,e,r)},onChange:function(e,o,a){n?s[n[0]][n[1]]=e:s.set(t,e),r||i.onChange&&i.onChange(e,o,a)},onComplete:function(t,e,n){r||(s.setCoords(),i.onComplete&&i.onComplete(t,e,n))}};return o?fabric.util.animateColor(c.startValue,c.endValue,c.duration,c):fabric.util.animate(c)}});!function(t){"use strict";function e(t,e){var i=t.origin,r=t.axis1,n=t.axis2,s=t.dimension,o=e.nearest,a=e.center,c=e.farthest;return function(){switch(this.get(i)){case o:return Math.min(this.get(r),this.get(n));case a:return Math.min(this.get(r),this.get(n))+.5*this.get(s);case c:return Math.max(this.get(r),this.get(n))}}}var i=t.fabric||(t.fabric={}),r=i.util.object.extend,n=i.util.object.clone,s={x1:1,x2:1,y1:1,y2:1};return i.Line?void i.warn("fabric.Line is already defined"):(i.Line=i.util.createClass(i.Object,{type:"line",x1:0,y1:0,x2:0,y2:0,cacheProperties:i.Object.prototype.cacheProperties.concat("x1","x2","y1","y2"),initialize:function(t,e){t||(t=[0,0,0,0]),this.callSuper("initialize",e),this.set("x1",t[0]),this.set("y1",t[1]),this.set("x2",t[2]),this.set("y2",t[3]),this._setWidthHeight(e)},_setWidthHeight:function(t){t||(t={}),this.width=Math.abs(this.x2-this.x1),this.height=Math.abs(this.y2-this.y1),this.left="left"in t?t.left:this._getLeftToOriginX(),this.top="top"in t?t.top:this._getTopToOriginY()},_set:function(t,e){return this.callSuper("_set",t,e),"undefined"!=typeof s[t]&&this._setWidthHeight(),this},_getLeftToOriginX:e({origin:"originX",axis1:"x1",axis2:"x2",dimension:"width"},{nearest:"left",center:"center",farthest:"right"}),_getTopToOriginY:e({origin:"originY",axis1:"y1",axis2:"y2",dimension:"height"},{nearest:"top",center:"center",farthest:"bottom"}),_render:function(t){t.beginPath();var e=this.calcLinePoints();t.moveTo(e.x1,e.y1),t.lineTo(e.x2,e.y2),t.lineWidth=this.strokeWidth;var i=t.strokeStyle;t.strokeStyle=this.stroke||t.fillStyle,this.stroke&&this._renderStroke(t),t.strokeStyle=i},_findCenterFromElement:function(){return{x:(this.x1+this.x2)/2,y:(this.y1+this.y2)/2}},toObject:function(t){return r(this.callSuper("toObject",t),this.calcLinePoints())},_getNonTransformedDimensions:function(){var t=this.callSuper("_getNonTransformedDimensions");return"butt"===this.strokeLineCap&&(0===this.width&&(t.y-=this.strokeWidth),0===this.height&&(t.x-=this.strokeWidth)),t},calcLinePoints:function(){var t=this.x1<=this.x2?-1:1,e=this.y1<=this.y2?-1:1,i=t*this.width*.5,r=e*this.height*.5,n=t*this.width*-.5,s=e*this.height*-.5;return{x1:i,x2:n,y1:r,y2:s}},_toSVG:function(){var t=this.calcLinePoints();return["\n']}}),i.Line.ATTRIBUTE_NAMES=i.SHARED_ATTRIBUTES.concat("x1 y1 x2 y2".split(" ")),i.Line.fromElement=function(t,e,n){n=n||{};var s=i.parseAttributes(t,i.Line.ATTRIBUTE_NAMES),o=[s.x1||0,s.y1||0,s.x2||0,s.y2||0];e(new i.Line(o,r(s,n)))},void(i.Line.fromObject=function(t,e){function r(t){delete t.points,e&&e(t)}var s=n(t,!0);s.points=[t.x1,t.y1,t.x2,t.y2],i.Object._fromObject("Line",s,r,"points")}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";function e(t){return"radius"in t&&t.radius>=0}var i=t.fabric||(t.fabric={}),r=i.util.degreesToRadians;return i.Circle?void i.warn("fabric.Circle is already defined."):(i.Circle=i.util.createClass(i.Object,{type:"circle",radius:0,startAngle:0,endAngle:360,cacheProperties:i.Object.prototype.cacheProperties.concat("radius","startAngle","endAngle"),_set:function(t,e){return this.callSuper("_set",t,e),"radius"===t&&this.setRadius(e),this},toObject:function(t){return this.callSuper("toObject",["radius","startAngle","endAngle"].concat(t))},_toSVG:function(){var t,e=0,n=0,s=(this.endAngle-this.startAngle)%360;if(0===s)t=["\n'];else{var o=r(this.startAngle),a=r(this.endAngle),c=this.radius,h=i.util.cos(o)*c,l=i.util.sin(o)*c,u=i.util.cos(a)*c,f=i.util.sin(a)*c,d=s>180?"1":"0";t=['\n"]}return t},_render:function(t){t.beginPath(),t.arc(0,0,this.radius,r(this.startAngle),r(this.endAngle),!1),this._renderPaintInOrder(t)},getRadiusX:function(){return this.get("radius")*this.get("scaleX")},getRadiusY:function(){return this.get("radius")*this.get("scaleY")},setRadius:function(t){return this.radius=t,this.set("width",2*t).set("height",2*t)}}),i.Circle.ATTRIBUTE_NAMES=i.SHARED_ATTRIBUTES.concat("cx cy r".split(" ")),i.Circle.fromElement=function(t,r){var n=i.parseAttributes(t,i.Circle.ATTRIBUTE_NAMES);if(!e(n))throw new Error("value of `r` attribute is required and can not be negative");n.left=(n.left||0)-n.radius,n.top=(n.top||0)-n.radius,r(new i.Circle(n))},void(i.Circle.fromObject=function(t,e){i.Object._fromObject("Circle",t,e)}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={});return e.Triangle?void e.warn("fabric.Triangle is already defined"):(e.Triangle=e.util.createClass(e.Object,{type:"triangle",width:100,height:100,_render:function(t){var e=this.width/2,i=this.height/2;t.beginPath(),t.moveTo(-e,i),t.lineTo(0,-i),t.lineTo(e,i),t.closePath(),this._renderPaintInOrder(t)},_toSVG:function(){var t=this.width/2,e=this.height/2,i=[-t+" "+e,"0 "+-e,t+" "+e].join(",");return["']}}),void(e.Triangle.fromObject=function(t,i){return e.Object._fromObject("Triangle",t,i)}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=2*Math.PI;return e.Ellipse?void e.warn("fabric.Ellipse is already defined."):(e.Ellipse=e.util.createClass(e.Object,{type:"ellipse",rx:0,ry:0,cacheProperties:e.Object.prototype.cacheProperties.concat("rx","ry"),initialize:function(t){this.callSuper("initialize",t),this.set("rx",t&&t.rx||0),this.set("ry",t&&t.ry||0)},_set:function(t,e){switch(this.callSuper("_set",t,e),t){case"rx":this.rx=e,this.set("width",2*e);break;case"ry":this.ry=e,this.set("height",2*e)}return this},getRx:function(){return this.get("rx")*this.get("scaleX")},getRy:function(){return this.get("ry")*this.get("scaleY")},toObject:function(t){return this.callSuper("toObject",["rx","ry"].concat(t))},_toSVG:function(){return["\n']},_render:function(t){t.beginPath(),t.save(),t.transform(1,0,0,this.ry/this.rx,0,0),t.arc(0,0,this.rx,0,i,!1),t.restore(),this._renderPaintInOrder(t)}}),e.Ellipse.ATTRIBUTE_NAMES=e.SHARED_ATTRIBUTES.concat("cx cy rx ry".split(" ")),e.Ellipse.fromElement=function(t,i){var r=e.parseAttributes(t,e.Ellipse.ATTRIBUTE_NAMES);r.left=(r.left||0)-r.rx,r.top=(r.top||0)-r.ry,i(new e.Ellipse(r))},void(e.Ellipse.fromObject=function(t,i){e.Object._fromObject("Ellipse",t,i)}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.object.extend;return e.Rect?void e.warn("fabric.Rect is already defined"):(e.Rect=e.util.createClass(e.Object,{stateProperties:e.Object.prototype.stateProperties.concat("rx","ry"),type:"rect",rx:0,ry:0,cacheProperties:e.Object.prototype.cacheProperties.concat("rx","ry"),initialize:function(t){this.callSuper("initialize",t),this._initRxRy()},_initRxRy:function(){this.rx&&!this.ry?this.ry=this.rx:this.ry&&!this.rx&&(this.rx=this.ry)},_render:function(t){var e=this.rx?Math.min(this.rx,this.width/2):0,i=this.ry?Math.min(this.ry,this.height/2):0,r=this.width,n=this.height,s=-this.width/2,o=-this.height/2,a=0!==e||0!==i,c=.4477152502;t.beginPath(),t.moveTo(s+e,o),t.lineTo(s+r-e,o),a&&t.bezierCurveTo(s+r-c*e,o,s+r,o+c*i,s+r,o+i),t.lineTo(s+r,o+n-i),a&&t.bezierCurveTo(s+r,o+n-c*i,s+r-c*e,o+n,s+r-e,o+n),t.lineTo(s+e,o+n),a&&t.bezierCurveTo(s+c*e,o+n,s,o+n-c*i,s,o+n-i),t.lineTo(s,o+i),a&&t.bezierCurveTo(s,o+c*i,s+c*e,o,s+e,o),t.closePath(),this._renderPaintInOrder(t)},toObject:function(t){return this.callSuper("toObject",["rx","ry"].concat(t))},_toSVG:function(){var t=-this.width/2,e=-this.height/2;return["\n']}}),e.Rect.ATTRIBUTE_NAMES=e.SHARED_ATTRIBUTES.concat("x y rx ry width height".split(" ")),e.Rect.fromElement=function(t,r,n){if(!t)return r(null);n=n||{};var s=e.parseAttributes(t,e.Rect.ATTRIBUTE_NAMES);s.left=s.left||0,s.top=s.top||0,s.height=s.height||0,s.width=s.width||0;var o=new e.Rect(i(n?e.util.object.clone(n):{},s));o.visible=o.visible&&o.width>0&&o.height>0,r(o)},void(e.Rect.fromObject=function(t,i){return e.Object._fromObject("Rect",t,i)}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.object.extend,r=e.util.array.min,n=e.util.array.max,s=e.util.toFixed,o=e.util.projectStrokeOnPoints;return e.Polyline?void e.warn("fabric.Polyline is already defined"):(e.Polyline=e.util.createClass(e.Object,{type:"polyline",points:null,exactBoundingBox:!1,cacheProperties:e.Object.prototype.cacheProperties.concat("points"),initialize:function(t,e){e=e||{},this.points=t||[],this.callSuper("initialize",e),this._setPositionDimensions(e)},_projectStrokeOnPoints:function(){return o(this.points,this,!0)},_setPositionDimensions:function(t){var e,i=this._calcDimensions(t),r=this.exactBoundingBox?this.strokeWidth:0;this.width=i.width-r,this.height=i.height-r,t.fromSVG||(e=this.translateToGivenOrigin({x:i.left-this.strokeWidth/2+r/2,y:i.top-this.strokeWidth/2+r/2},"left","top",this.originX,this.originY)),"undefined"==typeof t.left&&(this.left=t.fromSVG?i.left:e.x),"undefined"==typeof t.top&&(this.top=t.fromSVG?i.top:e.y),this.pathOffset={x:i.left+this.width/2+r/2,y:i.top+this.height/2+r/2}},_calcDimensions:function(){var t=this.exactBoundingBox?this._projectStrokeOnPoints():this.points,e=r(t,"x")||0,i=r(t,"y")||0,s=n(t,"x")||0,o=n(t,"y")||0,a=s-e,c=o-i;return{left:e,top:i,width:a,height:c}},toObject:function(t){return i(this.callSuper("toObject",t),{points:this.points.concat()})},_toSVG:function(){for(var t=[],i=this.pathOffset.x,r=this.pathOffset.y,n=e.Object.NUM_FRACTION_DIGITS,o=0,a=this.points.length;a>o;o++)t.push(s(this.points[o].x-i,n),",",s(this.points[o].y-r,n)," ");return["<"+this.type+" ","COMMON_PARTS",'points="',t.join(""),'" />\n']},commonRender:function(t){var e,i=this.points.length,r=this.pathOffset.x,n=this.pathOffset.y;if(!i||isNaN(this.points[i-1].y))return!1;t.beginPath(),t.moveTo(this.points[0].x-r,this.points[0].y-n);for(var s=0;i>s;s++)e=this.points[s],t.lineTo(e.x-r,e.y-n);return!0},_render:function(t){this.commonRender(t)&&this._renderPaintInOrder(t)},complexity:function(){return this.get("points").length}}),e.Polyline.ATTRIBUTE_NAMES=e.SHARED_ATTRIBUTES.concat(),e.Polyline.fromElementGenerator=function(t){return function(r,n,s){if(!r)return n(null);s||(s={});var o=e.parsePointsAttribute(r.getAttribute("points")),a=e.parseAttributes(r,e[t].ATTRIBUTE_NAMES);a.fromSVG=!0,n(new e[t](o,i(a,s)))}},e.Polyline.fromElement=e.Polyline.fromElementGenerator("Polyline"),void(e.Polyline.fromObject=function(t,i){return e.Object._fromObject("Polyline",t,i,"points")}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.projectStrokeOnPoints;return e.Polygon?void e.warn("fabric.Polygon is already defined"):(e.Polygon=e.util.createClass(e.Polyline,{type:"polygon",_projectStrokeOnPoints:function(){return i(this.points,this)},_render:function(t){this.commonRender(t)&&(t.closePath(),this._renderPaintInOrder(t))}}),e.Polygon.ATTRIBUTE_NAMES=e.SHARED_ATTRIBUTES.concat(),e.Polygon.fromElement=e.Polyline.fromElementGenerator("Polygon"),void(e.Polygon.fromObject=function(t,i){e.Object._fromObject("Polygon",t,i,"points")}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.array.min,r=e.util.array.max,n=e.util.object.extend,s=e.util.object.clone,o=e.util.toFixed;return e.Path?void e.warn("fabric.Path is already defined"):(e.Path=e.util.createClass(e.Object,{type:"path",path:null,cacheProperties:e.Object.prototype.cacheProperties.concat("path","fillRule"),stateProperties:e.Object.prototype.stateProperties.concat("path"),initialize:function(t,e){e=s(e||{}),delete e.path,this.callSuper("initialize",e),this._setPath(t||[],e)},_setPath:function(t,i){this.path=e.util.makePathSimpler(Array.isArray(t)?t:e.util.parsePath(t)),e.Polyline.prototype._setPositionDimensions.call(this,i||{})},_renderPathCommands:function(t){var e,i=0,r=0,n=0,s=0,o=0,a=0,c=-this.pathOffset.x,h=-this.pathOffset.y;t.beginPath();for(var l=0,u=this.path.length;u>l;++l)switch(e=this.path[l],e[0]){case"L":n=e[1],s=e[2],t.lineTo(n+c,s+h);break;case"M":n=e[1],s=e[2],i=n,r=s,t.moveTo(n+c,s+h);break;case"C":n=e[5],s=e[6],o=e[3],a=e[4],t.bezierCurveTo(e[1]+c,e[2]+h,o+c,a+h,n+c,s+h);break;case"Q":t.quadraticCurveTo(e[1]+c,e[2]+h,e[3]+c,e[4]+h),n=e[3],s=e[4],o=e[1],a=e[2];break;case"z":case"Z":n=i,s=r,t.closePath()}},_render:function(t){this._renderPathCommands(t),this._renderPaintInOrder(t)},toString:function(){return"#"},toObject:function(t){return n(this.callSuper("toObject",t),{path:this.path.map(function(t){return t.slice()})})},toDatalessObject:function(t){var e=this.toObject(["sourcePath"].concat(t));return e.sourcePath&&delete e.path,e},_toSVG:function(){var t=e.util.joinPath(this.path);return["\n"]},_getOffsetTransform:function(){var t=e.Object.NUM_FRACTION_DIGITS;return" translate("+o(-this.pathOffset.x,t)+", "+o(-this.pathOffset.y,t)+")"},toClipPathSVG:function(t){var e=this._getOffsetTransform();return" "+this._createBaseClipPathSVGMarkup(this._toSVG(),{reviver:t,additionalTransform:e})},toSVG:function(t){var e=this._getOffsetTransform();return this._createBaseSVGMarkup(this._toSVG(),{reviver:t,additionalTransform:e})},complexity:function(){return this.path.length},_calcDimensions:function(){for(var t,n,s=[],o=[],a=0,c=0,h=0,l=0,u=0,f=this.path.length;f>u;++u){switch(t=this.path[u],t[0]){case"L":h=t[1],l=t[2],n=[];break;case"M":h=t[1],l=t[2],a=h,c=l,n=[];break;case"C":n=e.util.getBoundsOfCurve(h,l,t[1],t[2],t[3],t[4],t[5],t[6]),h=t[5],l=t[6];break;case"Q":n=e.util.getBoundsOfCurve(h,l,t[1],t[2],t[1],t[2],t[3],t[4]),h=t[3],l=t[4];break;case"z":case"Z":h=a,l=c}n.forEach(function(t){s.push(t.x),o.push(t.y)}),s.push(h),o.push(l)}var d=i(s)||0,g=i(o)||0,p=r(s)||0,v=r(o)||0,b=p-d,m=v-g;return{left:d,top:g,width:b,height:m}}}),e.Path.fromObject=function(t,i){if("string"==typeof t.sourcePath){var r=t.sourcePath;e.loadSVGFromURL(r,function(e){var r=e[0];r.setOptions(t),i&&i(r)})}else e.Object._fromObject("Path",t,i,"path")},e.Path.ATTRIBUTE_NAMES=e.SHARED_ATTRIBUTES.concat(["d"]),void(e.Path.fromElement=function(t,i,r){var s=e.parseAttributes(t,e.Path.ATTRIBUTE_NAMES);s.fromSVG=!0,i(new e.Path(s.d,n(s,r)))}))}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.array.min,r=e.util.array.max;e.Group||(e.Group=e.util.createClass(e.Object,e.Collection,{type:"group",strokeWidth:0,subTargetCheck:!1,cacheProperties:[],useSetOnGroup:!1,initialize:function(t,e,i){e=e||{},this._objects=[],i&&this.callSuper("initialize",e),this._objects=t||[];for(var r=this._objects.length;r--;)this._objects[r].group=this;if(i)this._updateObjectsACoords();else{var n=e&&e.centerPoint;void 0!==e.originX&&(this.originX=e.originX),void 0!==e.originY&&(this.originY=e.originY),n||this._calcBounds(),this._updateObjectsCoords(n),delete e.centerPoint,this.callSuper("initialize",e)}this.setCoords()},_updateObjectsACoords:function(){for(var t=!0,e=this._objects.length;e--;)this._objects[e].setCoords(t)},_updateObjectsCoords:function(t){for(var t=t||this.getCenterPoint(),e=this._objects.length;e--;)this._updateObjectCoords(this._objects[e],t)},_updateObjectCoords:function(t,e){var i=t.left,r=t.top,n=!0;t.set({left:i-e.x,top:r-e.y}),t.group=this,t.setCoords(n)},toString:function(){return"#"},addWithUpdate:function(t){var i=!!this.group;return this._restoreObjectsState(),e.util.resetObjectTransform(this),t&&(i&&e.util.removeTransformFromObject(t,this.group.calcTransformMatrix()),this._objects.push(t),t.group=this,t._set("canvas",this.canvas)),this._calcBounds(),this._updateObjectsCoords(),this.dirty=!0,i?this.group.addWithUpdate():this.setCoords(),this},removeWithUpdate:function(t){return this._restoreObjectsState(),e.util.resetObjectTransform(this),this.remove(t),this._calcBounds(),this._updateObjectsCoords(),this.setCoords(),this.dirty=!0,this},_onObjectAdded:function(t){this.dirty=!0,t.group=this,t._set("canvas",this.canvas)},_onObjectRemoved:function(t){this.dirty=!0,delete t.group},_set:function(t,i){var r=this._objects.length;if(this.useSetOnGroup)for(;r--;)this._objects[r].setOnGroup(t,i);if("canvas"===t)for(;r--;)this._objects[r]._set(t,i);e.Object.prototype._set.call(this,t,i)},toObject:function(t){var i=this.includeDefaultValues,r=this._objects.filter(function(t){return!t.excludeFromExport}).map(function(e){var r=e.includeDefaultValues;e.includeDefaultValues=i;var n=e.toObject(t);return e.includeDefaultValues=r,n}),n=e.Object.prototype.toObject.call(this,t);return n.objects=r,n},toDatalessObject:function(t){var i,r=this.sourcePath;if(r)i=r;else{var n=this.includeDefaultValues;i=this._objects.map(function(e){var i=e.includeDefaultValues;e.includeDefaultValues=n;var r=e.toDatalessObject(t);return e.includeDefaultValues=i,r})}var s=e.Object.prototype.toDatalessObject.call(this,t);return s.objects=i,s},render:function(t){this._transformDone=!0,this.callSuper("render",t),this._transformDone=!1},shouldCache:function(){var t=e.Object.prototype.shouldCache.call(this);if(t)for(var i=0,r=this._objects.length;r>i;i++)if(this._objects[i].willDrawShadow())return this.ownCaching=!1,!1;return t},willDrawShadow:function(){if(e.Object.prototype.willDrawShadow.call(this))return!0;for(var t=0,i=this._objects.length;i>t;t++)if(this._objects[t].willDrawShadow())return!0;return!1},isOnACache:function(){return this.ownCaching||this.group&&this.group.isOnACache()},drawObject:function(t){for(var e=0,i=this._objects.length;i>e;e++)this._objects[e].render(t);this._drawClipPath(t,this.clipPath)},isCacheDirty:function(t){if(this.callSuper("isCacheDirty",t))return!0;if(!this.statefullCache)return!1;for(var e=0,i=this._objects.length;i>e;e++)if(this._objects[e].isCacheDirty(!0)){if(this._cacheCanvas){var r=this.cacheWidth/this.zoomX,n=this.cacheHeight/this.zoomY;this._cacheContext.clearRect(-r/2,-n/2,r,n)}return!0}return!1},_restoreObjectsState:function(){var t=this.calcOwnMatrix();return this._objects.forEach(function(i){e.util.addTransformToObject(i,t),delete i.group,i.setCoords()}),this},destroy:function(){return this._objects.forEach(function(t){t.set("dirty",!0)}),this._restoreObjectsState()},dispose:function(){this.callSuper("dispose"),this.forEachObject(function(t){t.dispose&&t.dispose()}),this._objects=[]},toActiveSelection:function(){if(this.canvas){var t=this._objects,i=this.canvas;this._objects=[];var r=this.toObject();delete r.objects;var n=new e.ActiveSelection([]);return n.set(r),n.type="activeSelection",i.remove(this),t.forEach(function(t){t.group=n,t.dirty=!0,i.add(t)}),n.canvas=i,n._objects=t,i._activeObject=n,n.setCoords(),n}},ungroupOnCanvas:function(){return this._restoreObjectsState()},setObjectsCoords:function(){var t=!0;return this.forEachObject(function(e){e.setCoords(t)}),this},_calcBounds:function(t){for(var e,i,r,n,s=[],o=[],a=["tr","br","bl","tl"],c=0,h=this._objects.length,l=a.length;h>c;++c){for(e=this._objects[c],r=e.calcACoords(),n=0;l>n;n++)i=a[n],s.push(r[i].x),o.push(r[i].y);e.aCoords=r}this._getBounds(s,o,t)},_getBounds:function(t,n,s){var o=new e.Point(i(t),i(n)),a=new e.Point(r(t),r(n)),c=o.y||0,h=o.x||0,l=a.x-o.x||0,u=a.y-o.y||0;this.width=l,this.height=u,s||this.setPositionByOrigin({x:h,y:c},"left","top")},_toSVG:function(t){for(var e=["\n"],i=0,r=this._objects.length;r>i;i++)e.push(" ",this._objects[i].toSVG(t));return e.push("\n"),e},getSvgStyles:function(){var t="undefined"!=typeof this.opacity&&1!==this.opacity?"opacity: "+this.opacity+";":"",e=this.visible?"":" visibility: hidden;";return[t,this.getSvgFilter(),e].join("")},toClipPathSVG:function(t){for(var e=[],i=0,r=this._objects.length;r>i;i++)e.push(" ",this._objects[i].toClipPathSVG(t));return this._createBaseClipPathSVGMarkup(e,{reviver:t})}}),e.Group.fromObject=function(t,i){var r=t.objects,n=e.util.object.clone(t,!0);return delete n.objects,"string"==typeof r?void e.loadSVGFromURL(r,function(s){var o=e.util.groupSVGElements(s,t,r);o.set(n),i&&i(o)}):void e.util.enlivenObjects(r,function(r){var n=e.util.object.clone(t,!0);delete n.objects,e.util.enlivenObjectEnlivables(t,n,function(){i&&i(new e.Group(r,n,!0))})})})}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={});e.ActiveSelection||(e.ActiveSelection=e.util.createClass(e.Group,{type:"activeSelection",initialize:function(t,i){i=i||{},this._objects=t||[];for(var r=this._objects.length;r--;)this._objects[r].group=this;i.originX&&(this.originX=i.originX),i.originY&&(this.originY=i.originY),this._calcBounds(),this._updateObjectsCoords(),e.Object.prototype.initialize.call(this,i),this.setCoords()},toGroup:function(){var t=this._objects.concat();this._objects=[];var i=e.Object.prototype.toObject.call(this),r=new e.Group([]);if(delete i.type,r.set(i),t.forEach(function(t){t.canvas.remove(t),t.group=r}),r._objects=t,!this.canvas)return r;var n=this.canvas;return n.add(r),n._activeObject=r,r.setCoords(),r},onDeselect:function(){return this.destroy(),!1},toString:function(){return"#"},shouldCache:function(){return!1},isOnACache:function(){return!1},_renderControls:function(t,e,i){t.save(),t.globalAlpha=this.isMoving?this.borderOpacityWhenMoving:1,this.callSuper("_renderControls",t,e),i=i||{},"undefined"==typeof i.hasControls&&(i.hasControls=!1),i.forActiveSelection=!0;for(var r=0,n=this._objects.length;n>r;r++)this._objects[r]._renderControls(t,i);t.restore()}}),e.ActiveSelection.fromObject=function(t,i){e.util.enlivenObjects(t.objects,function(r){delete t.objects,i&&i(new e.ActiveSelection(r,t,!0))})})}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=fabric.util.object.extend;return t.fabric||(t.fabric={}),t.fabric.Image?void fabric.warn("fabric.Image is already defined."):(fabric.Image=fabric.util.createClass(fabric.Object,{type:"image",strokeWidth:0,srcFromAttribute:!1,_lastScaleX:1,_lastScaleY:1,_filterScalingX:1,_filterScalingY:1,minimumScaleTrigger:.5,stateProperties:fabric.Object.prototype.stateProperties.concat("cropX","cropY"),cacheProperties:fabric.Object.prototype.cacheProperties.concat("cropX","cropY"),cacheKey:"",cropX:0,cropY:0,imageSmoothing:!0,initialize:function(t,e){e||(e={}),this.filters=[],this.cacheKey="texture"+fabric.Object.__uid++,this.callSuper("initialize",e),this._initElement(t,e)},getElement:function(){return this._element||{}},setElement:function(t,e){return this.removeTexture(this.cacheKey),this.removeTexture(this.cacheKey+"_filtered"),this._element=t,this._originalElement=t,this._initConfig(e),0!==this.filters.length&&this.applyFilters(),this.resizeFilter&&this.applyResizeFilters(),this},removeTexture:function(t){var e=fabric.filterBackend;e&&e.evictCachesForKey&&e.evictCachesForKey(t)},dispose:function(){this.callSuper("dispose"),this.removeTexture(this.cacheKey),this.removeTexture(this.cacheKey+"_filtered"),this._cacheContext=void 0,["_originalElement","_element","_filteredEl","_cacheCanvas"].forEach(function(t){fabric.util.cleanUpJsdomNode(this[t]),this[t]=void 0}.bind(this))},getCrossOrigin:function(){return this._originalElement&&(this._originalElement.crossOrigin||null)},getOriginalSize:function(){var t=this.getElement();return{width:t.naturalWidth||t.width,height:t.naturalHeight||t.height}},_stroke:function(t){if(this.stroke&&0!==this.strokeWidth){var e=this.width/2,i=this.height/2;t.beginPath(),t.moveTo(-e,-i),t.lineTo(e,-i),t.lineTo(e,i),t.lineTo(-e,i),t.lineTo(-e,-i),t.closePath()}},toObject:function(t){var i=[];this.filters.forEach(function(t){t&&i.push(t.toObject())});var r=e(this.callSuper("toObject",["cropX","cropY"].concat(t)),{src:this.getSrc(),crossOrigin:this.getCrossOrigin(),filters:i});return this.resizeFilter&&(r.resizeFilter=this.resizeFilter.toObject()),r},hasCrop:function(){return this.cropX||this.cropY||this.width\n',' \n',"\n"),o=' clip-path="url(#imageCrop_'+c+')" '}if(this.imageSmoothing||(a='" image-rendering="optimizeSpeed'),i.push(" \n"),this.stroke||this.strokeDashArray){var h=this.fill;this.fill=null,t=[" \n'],this.fill=h}return e="fill"!==this.paintFirst?e.concat(t,i):e.concat(i,t)},getSrc:function(t){var e=t?this._element:this._originalElement;return e?e.toDataURL?e.toDataURL():this.srcFromAttribute?e.getAttribute("src"):e.src:this.src||""},setSrc:function(t,e,i){return fabric.util.loadImage(t,function(t,r){this.setElement(t,i),this._setWidthHeight(),e&&e(this,r)},this,i&&i.crossOrigin),this},toString:function(){return'#'},applyResizeFilters:function(){var t=this.resizeFilter,e=this.minimumScaleTrigger,i=this.getTotalObjectScaling(),r=i.scaleX,n=i.scaleY,s=this._filteredEl||this._originalElement;if(this.group&&this.set("dirty",!0),!t||r>e&&n>e)return this._element=s,this._filterScalingX=1,this._filterScalingY=1,this._lastScaleX=r,void(this._lastScaleY=n);fabric.filterBackend||(fabric.filterBackend=fabric.initFilterBackend());var o=fabric.util.createCanvasElement(),a=this._filteredEl?this.cacheKey+"_filtered":this.cacheKey,c=s.width,h=s.height;o.width=c,o.height=h,this._element=o,this._lastScaleX=t.scaleX=r,this._lastScaleY=t.scaleY=n,fabric.filterBackend.applyFilters([t],s,c,h,this._element,a),this._filterScalingX=o.width/this._originalElement.width,this._filterScalingY=o.height/this._originalElement.height},applyFilters:function(t){if(t=t||this.filters||[],t=t.filter(function(t){return t&&!t.isNeutralState()}),this.set("dirty",!0),this.removeTexture(this.cacheKey+"_filtered"),0===t.length)return this._element=this._originalElement,this._filteredEl=null,this._filterScalingX=1,this._filterScalingY=1,this;var e=this._originalElement,i=e.naturalWidth||e.width,r=e.naturalHeight||e.height;if(this._element===this._originalElement){var n=fabric.util.createCanvasElement();n.width=i,n.height=r,this._element=n,this._filteredEl=n}else this._element=this._filteredEl,this._filteredEl.getContext("2d").clearRect(0,0,i,r),this._lastScaleX=1,this._lastScaleY=1;return fabric.filterBackend||(fabric.filterBackend=fabric.initFilterBackend()),fabric.filterBackend.applyFilters(t,this._originalElement,i,r,this._element,this.cacheKey),(this._originalElement.width!==this._element.width||this._originalElement.height!==this._element.height)&&(this._filterScalingX=this._element.width/this._originalElement.width,this._filterScalingY=this._element.height/this._originalElement.height),this},_render:function(t){fabric.util.setImageSmoothing(t,this.imageSmoothing),this.isMoving!==!0&&this.resizeFilter&&this._needsResize()&&this.applyResizeFilters(),this._stroke(t),this._renderPaintInOrder(t)},drawCacheOnCanvas:function(t){fabric.util.setImageSmoothing(t,this.imageSmoothing),fabric.Object.prototype.drawCacheOnCanvas.call(this,t)},shouldCache:function(){return this.needsItsOwnCache()},_renderFill:function(t){var e=this._element;if(e){var i=this._filterScalingX,r=this._filterScalingY,n=this.width,s=this.height,o=Math.min,a=Math.max,c=a(this.cropX,0),h=a(this.cropY,0),l=e.naturalWidth||e.width,u=e.naturalHeight||e.height,f=c*i,d=h*r,g=o(n*i,l-f),p=o(s*r,u-d),v=-n/2,b=-s/2,m=o(n,l/i-c),y=o(s,u/r-h);e&&t.drawImage(e,f,d,g,p,v,b,m,y)}},_needsResize:function(){var t=this.getTotalObjectScaling();return t.scaleX!==this._lastScaleX||t.scaleY!==this._lastScaleY},_resetWidthHeight:function(){this.set(this.getOriginalSize())},_initElement:function(t,e){this.setElement(fabric.util.getById(t),e),fabric.util.addClass(this.getElement(),fabric.Image.CSS_CANVAS)},_initConfig:function(t){t||(t={}),this.setOptions(t),this._setWidthHeight(t)},_initFilters:function(t,e){t&&t.length?fabric.util.enlivenObjects(t,function(t){e&&e(t)},"fabric.Image.filters"):e&&e()},_setWidthHeight:function(t){t||(t={});var e=this.getElement();this.width=t.width||e.naturalWidth||e.width||0,this.height=t.height||e.naturalHeight||e.height||0},parsePreserveAspectRatioAttribute:function(){var t,e=fabric.util.parsePreserveAspectRatioAttribute(this.preserveAspectRatio||""),i=this._element.width,r=this._element.height,n=1,s=1,o=0,a=0,c=0,h=0,l=this.width,u=this.height,f={width:l,height:u};return!e||"none"===e.alignX&&"none"===e.alignY?(n=l/i,s=u/r):("meet"===e.meetOrSlice&&(n=s=fabric.util.findScaleToFit(this._element,f),t=(l-i*n)/2,"Min"===e.alignX&&(o=-t),"Max"===e.alignX&&(o=t),t=(u-r*s)/2,"Min"===e.alignY&&(a=-t),"Max"===e.alignY&&(a=t)),"slice"===e.meetOrSlice&&(n=s=fabric.util.findScaleToCover(this._element,f),t=i-l/n,"Mid"===e.alignX&&(c=t/2),"Max"===e.alignX&&(c=t),t=r-u/s,"Mid"===e.alignY&&(h=t/2),"Max"===e.alignY&&(h=t),i=l/n,r=u/s)),{width:i,height:r,scaleX:n,scaleY:s,offsetLeft:o,offsetTop:a,cropX:c,cropY:h}}}),fabric.Image.CSS_CANVAS="canvas-img",fabric.Image.prototype.getSvgSrc=fabric.Image.prototype.getSrc,fabric.Image.fromObject=function(t,e){var i=fabric.util.object.clone(t);fabric.util.loadImage(i.src,function(t,r){return r?void(e&&e(null,!0)):void fabric.Image.prototype._initFilters.call(i,i.filters,function(r){i.filters=r||[],fabric.Image.prototype._initFilters.call(i,[i.resizeFilter],function(r){i.resizeFilter=r[0],fabric.util.enlivenObjectEnlivables(i,i,function(){var r=new fabric.Image(t,i);e(r,!1)})})})},null,i.crossOrigin)},fabric.Image.fromURL=function(t,e,i){fabric.util.loadImage(t,function(t,r){e&&e(new fabric.Image(t,i),r)},null,i&&i.crossOrigin)},fabric.Image.ATTRIBUTE_NAMES=fabric.SHARED_ATTRIBUTES.concat("x y width height preserveAspectRatio xlink:href crossOrigin image-rendering".split(" ")),void(fabric.Image.fromElement=function(t,i,r){var n=fabric.parseAttributes(t,fabric.Image.ATTRIBUTE_NAMES);fabric.Image.fromURL(n["xlink:href"],i,e(r?fabric.util.object.clone(r):{},n))}))}("undefined"!=typeof exports?exports:this);fabric.util.object.extend(fabric.Object.prototype,{_getAngleValueForStraighten:function(){var t=this.angle%360;return t>0?90*Math.round((t-1)/90):90*Math.round(t/90)},straighten:function(){return this.rotate(this._getAngleValueForStraighten())},fxStraighten:function(t){t=t||{};var e=function(){},i=t.onComplete||e,r=t.onChange||e,n=this;return fabric.util.animate({target:this,startValue:this.get("angle"),endValue:this._getAngleValueForStraighten(),duration:this.FX_DURATION,onChange:function(t){n.rotate(t),r()},onComplete:function(){n.setCoords(),i()}})}}),fabric.util.object.extend(fabric.StaticCanvas.prototype,{straightenObject:function(t){return t.straighten(),this.requestRenderAll(),this},fxStraightenObject:function(t){return t.fxStraighten({onChange:this.requestRenderAllBound})}});function resizeCanvasIfNeeded(t){var e=t.targetCanvas,i=e.width,r=e.height,n=t.destinationWidth,s=t.destinationHeight;(i!==n||r!==s)&&(e.width=n,e.height=s)}function copyGLTo2DDrawImage(t,e){var i=t.canvas,r=e.targetCanvas,n=r.getContext("2d");n.translate(0,r.height),n.scale(1,-1);var s=i.height-r.height;n.drawImage(i,0,s,r.width,r.height,0,0,r.width,r.height)}function copyGLTo2DPutImageData(t,e){var i=e.targetCanvas,r=i.getContext("2d"),n=e.destinationWidth,s=e.destinationHeight,o=n*s*4,a=new Uint8Array(this.imageBuffer,0,o),c=new Uint8ClampedArray(this.imageBuffer,0,o);t.readPixels(0,0,n,s,t.RGBA,t.UNSIGNED_BYTE,a);var h=new ImageData(c,n,s);r.putImageData(h,0,0)}!function(){"use strict";function t(t,e){var i="precision "+e+" float;\nvoid main(){}",r=t.createShader(t.FRAGMENT_SHADER);return t.shaderSource(r,i),t.compileShader(r),t.getShaderParameter(r,t.COMPILE_STATUS)?!0:!1}function e(t){t&&t.tileSize&&(this.tileSize=t.tileSize),this.setupGLContext(this.tileSize,this.tileSize),this.captureGPUInfo()}fabric.isWebglSupported=function(e){if(fabric.isLikelyNode)return!1;e=e||fabric.WebglFilterBackend.prototype.tileSize;var i=document.createElement("canvas"),r=i.getContext("webgl")||i.getContext("experimental-webgl"),n=!1;if(r){fabric.maxTextureSize=r.getParameter(r.MAX_TEXTURE_SIZE),n=fabric.maxTextureSize>=e;for(var s=["highp","mediump","lowp"],o=0;3>o;o++)if(t(r,s[o])){fabric.webGlPrecision=s[o];break}}return this.isSupported=n,n},fabric.WebglFilterBackend=e,e.prototype={tileSize:2048,resources:{},setupGLContext:function(t,e){this.dispose(),this.createWebGLCanvas(t,e),this.aPosition=new Float32Array([0,0,0,1,1,0,1,1]),this.chooseFastestCopyGLTo2DMethod(t,e)},chooseFastestCopyGLTo2DMethod:function(t,e){var i,r="undefined"!=typeof window.performance;try{new ImageData(1,1),i=!0}catch(n){i=!1}var s="undefined"!=typeof ArrayBuffer,o="undefined"!=typeof Uint8ClampedArray;if(r&&i&&s&&o){var a=fabric.util.createCanvasElement(),c=new ArrayBuffer(t*e*4);if(fabric.forceGLPutImageData)return this.imageBuffer=c,void(this.copyGLTo2D=copyGLTo2DPutImageData);var h,l,u,f={imageBuffer:c,destinationWidth:t,destinationHeight:e,targetCanvas:a};a.width=t,a.height=e,h=window.performance.now(),copyGLTo2DDrawImage.call(f,this.gl,f),l=window.performance.now()-h,h=window.performance.now(),copyGLTo2DPutImageData.call(f,this.gl,f),u=window.performance.now()-h,l>u?(this.imageBuffer=c,this.copyGLTo2D=copyGLTo2DPutImageData):this.copyGLTo2D=copyGLTo2DDrawImage}},createWebGLCanvas:function(t,e){var i=fabric.util.createCanvasElement();i.width=t,i.height=e;var r={alpha:!0,premultipliedAlpha:!1,depth:!1,stencil:!1,antialias:!1},n=i.getContext("webgl",r);n||(n=i.getContext("experimental-webgl",r)),n&&(n.clearColor(0,0,0,0),this.canvas=i,this.gl=n)},applyFilters:function(t,e,i,r,n,s){var o,a=this.gl;s&&(o=this.getCachedTexture(s,e));var c={originalWidth:e.width||e.originalWidth,originalHeight:e.height||e.originalHeight,sourceWidth:i,sourceHeight:r,destinationWidth:i,destinationHeight:r,context:a,sourceTexture:this.createTexture(a,i,r,!o&&e),targetTexture:this.createTexture(a,i,r),originalTexture:o||this.createTexture(a,i,r,!o&&e),passes:t.length,webgl:!0,aPosition:this.aPosition,programCache:this.programCache,pass:0,filterBackend:this,targetCanvas:n},h=a.createFramebuffer();return a.bindFramebuffer(a.FRAMEBUFFER,h),t.forEach(function(t){t&&t.applyTo(c)}),resizeCanvasIfNeeded(c),this.copyGLTo2D(a,c),a.bindTexture(a.TEXTURE_2D,null),a.deleteTexture(c.sourceTexture),a.deleteTexture(c.targetTexture),a.deleteFramebuffer(h),n.getContext("2d").setTransform(1,0,0,1,0,0),c},dispose:function(){this.canvas&&(this.canvas=null,this.gl=null),this.clearWebGLCaches()},clearWebGLCaches:function(){this.programCache={},this.textureCache={}},createTexture:function(t,e,i,r){var n=t.createTexture();return t.bindTexture(t.TEXTURE_2D,n),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MAG_FILTER,t.NEAREST),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MIN_FILTER,t.NEAREST),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE),r?t.texImage2D(t.TEXTURE_2D,0,t.RGBA,t.RGBA,t.UNSIGNED_BYTE,r):t.texImage2D(t.TEXTURE_2D,0,t.RGBA,e,i,0,t.RGBA,t.UNSIGNED_BYTE,null),n},getCachedTexture:function(t,e){if(this.textureCache[t])return this.textureCache[t];var i=this.createTexture(this.gl,e.width,e.height,e);return this.textureCache[t]=i,i},evictCachesForKey:function(t){this.textureCache[t]&&(this.gl.deleteTexture(this.textureCache[t]),delete this.textureCache[t])},copyGLTo2D:copyGLTo2DDrawImage,captureGPUInfo:function(){if(this.gpuInfo)return this.gpuInfo;var t=this.gl,e={renderer:"",vendor:""};if(!t)return e;var i=t.getExtension("WEBGL_debug_renderer_info");if(i){var r=t.getParameter(i.UNMASKED_RENDERER_WEBGL),n=t.getParameter(i.UNMASKED_VENDOR_WEBGL);r&&(e.renderer=r.toLowerCase()),n&&(e.vendor=n.toLowerCase())}return this.gpuInfo=e,e}}}();!function(){"use strict";function t(){}var e=function(){};fabric.Canvas2dFilterBackend=t,t.prototype={evictCachesForKey:e,dispose:e,clearWebGLCaches:e,resources:{},applyFilters:function(t,e,i,r,n){var s=n.getContext("2d");s.drawImage(e,0,0,i,r);var o=s.getImageData(0,0,i,r),a=s.getImageData(0,0,i,r),c={sourceWidth:i,sourceHeight:r,imageData:o,originalEl:e,originalImageData:a,canvasEl:n,ctx:s,filterBackend:this};return t.forEach(function(t){t.applyTo(c)}),(c.imageData.width!==i||c.imageData.height!==r)&&(n.width=c.imageData.width,n.height=c.imageData.height),s.putImageData(c.imageData,0,0),c}}}();fabric.Image=fabric.Image||{},fabric.Image.filters=fabric.Image.filters||{},fabric.Image.filters.BaseFilter=fabric.util.createClass({type:"BaseFilter",vertexSource:"attribute vec2 aPosition;\nvarying vec2 vTexCoord;\nvoid main() {\nvTexCoord = aPosition;\ngl_Position = vec4(aPosition * 2.0 - 1.0, 0.0, 1.0);\n}",fragmentSource:"precision highp float;\nvarying vec2 vTexCoord;\nuniform sampler2D uTexture;\nvoid main() {\ngl_FragColor = texture2D(uTexture, vTexCoord);\n}",initialize:function(t){t&&this.setOptions(t)},setOptions:function(t){for(var e in t)this[e]=t[e]},createProgram:function(t,e,i){e=e||this.fragmentSource,i=i||this.vertexSource,"highp"!==fabric.webGlPrecision&&(e=e.replace(/precision highp float/g,"precision "+fabric.webGlPrecision+" float"));var r=t.createShader(t.VERTEX_SHADER);if(t.shaderSource(r,i),t.compileShader(r),!t.getShaderParameter(r,t.COMPILE_STATUS))throw new Error("Vertex shader compile error for "+this.type+": "+t.getShaderInfoLog(r));var n=t.createShader(t.FRAGMENT_SHADER);if(t.shaderSource(n,e),t.compileShader(n),!t.getShaderParameter(n,t.COMPILE_STATUS))throw new Error("Fragment shader compile error for "+this.type+": "+t.getShaderInfoLog(n));var s=t.createProgram();if(t.attachShader(s,r),t.attachShader(s,n),t.linkProgram(s),!t.getProgramParameter(s,t.LINK_STATUS))throw new Error('Shader link error for "${this.type}" '+t.getProgramInfoLog(s));var o=this.getAttributeLocations(t,s),a=this.getUniformLocations(t,s)||{};return a.uStepW=t.getUniformLocation(s,"uStepW"),a.uStepH=t.getUniformLocation(s,"uStepH"),{program:s,attributeLocations:o,uniformLocations:a}},getAttributeLocations:function(t,e){return{aPosition:t.getAttribLocation(e,"aPosition")}},getUniformLocations:function(){return{}},sendAttributeData:function(t,e,i){var r=e.aPosition,n=t.createBuffer();t.bindBuffer(t.ARRAY_BUFFER,n),t.enableVertexAttribArray(r),t.vertexAttribPointer(r,2,t.FLOAT,!1,0,0),t.bufferData(t.ARRAY_BUFFER,i,t.STATIC_DRAW)},_setupFrameBuffer:function(t){var e,i,r=t.context;t.passes>1?(e=t.destinationWidth,i=t.destinationHeight,(t.sourceWidth!==e||t.sourceHeight!==i)&&(r.deleteTexture(t.targetTexture),t.targetTexture=t.filterBackend.createTexture(r,e,i)),r.framebufferTexture2D(r.FRAMEBUFFER,r.COLOR_ATTACHMENT0,r.TEXTURE_2D,t.targetTexture,0)):(r.bindFramebuffer(r.FRAMEBUFFER,null),r.finish())},_swapTextures:function(t){t.passes--,t.pass++;var e=t.targetTexture;t.targetTexture=t.sourceTexture,t.sourceTexture=e},isNeutralState:function(){var t=this.mainParameter,e=fabric.Image.filters[this.type].prototype;if(t){if(Array.isArray(e[t])){for(var i=e[t].length;i--;)if(this[t][i]!==e[t][i])return!1;return!0}return e[t]===this[t]}return!1},applyTo:function(t){t.webgl?(this._setupFrameBuffer(t),this.applyToWebGL(t),this._swapTextures(t)):this.applyTo2d(t)},retrieveShader:function(t){return t.programCache.hasOwnProperty(this.type)||(t.programCache[this.type]=this.createProgram(t.context)),t.programCache[this.type]},applyToWebGL:function(t){var e=t.context,i=this.retrieveShader(t);0===t.pass&&t.originalTexture?e.bindTexture(e.TEXTURE_2D,t.originalTexture):e.bindTexture(e.TEXTURE_2D,t.sourceTexture),e.useProgram(i.program),this.sendAttributeData(e,i.attributeLocations,t.aPosition),e.uniform1f(i.uniformLocations.uStepW,1/t.sourceWidth),e.uniform1f(i.uniformLocations.uStepH,1/t.sourceHeight),this.sendUniformData(e,i.uniformLocations),e.viewport(0,0,t.destinationWidth,t.destinationHeight),e.drawArrays(e.TRIANGLE_STRIP,0,4)},bindAdditionalTexture:function(t,e,i){t.activeTexture(i),t.bindTexture(t.TEXTURE_2D,e),t.activeTexture(t.TEXTURE0)},unbindAdditionalTexture:function(t,e){t.activeTexture(e),t.bindTexture(t.TEXTURE_2D,null),t.activeTexture(t.TEXTURE0)},getMainParameter:function(){return this[this.mainParameter]},setMainParameter:function(t){this[this.mainParameter]=t},sendUniformData:function(){},createHelpLayer:function(t){if(!t.helpLayer){var e=document.createElement("canvas");e.width=t.sourceWidth,e.height=t.sourceHeight,t.helpLayer=e}},toObject:function(){var t={type:this.type},e=this.mainParameter;return e&&(t[e]=this[e]),t},toJSON:function(){return this.toObject()}}),fabric.Image.filters.BaseFilter.fromObject=function(t,e){var i=new fabric.Image.filters[t.type](t);return e&&e(i),i};!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.ColorMatrix=r(i.BaseFilter,{type:"ColorMatrix",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nvarying vec2 vTexCoord;\nuniform mat4 uColorMatrix;\nuniform vec4 uConstants;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\ncolor *= uColorMatrix;\ncolor += uConstants;\ngl_FragColor = color;\n}",matrix:[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0],mainParameter:"matrix",colorsOnly:!0,initialize:function(t){this.callSuper("initialize",t),this.matrix=this.matrix.slice(0)},applyTo2d:function(t){var e,i,r,n,s,o=t.imageData,a=o.data,c=a.length,h=this.matrix,l=this.colorsOnly;for(s=0;c>s;s+=4)e=a[s],i=a[s+1],r=a[s+2],l?(a[s]=e*h[0]+i*h[1]+r*h[2]+255*h[4],a[s+1]=e*h[5]+i*h[6]+r*h[7]+255*h[9],a[s+2]=e*h[10]+i*h[11]+r*h[12]+255*h[14]):(n=a[s+3],a[s]=e*h[0]+i*h[1]+r*h[2]+n*h[3]+255*h[4],a[s+1]=e*h[5]+i*h[6]+r*h[7]+n*h[8]+255*h[9],a[s+2]=e*h[10]+i*h[11]+r*h[12]+n*h[13]+255*h[14],a[s+3]=e*h[15]+i*h[16]+r*h[17]+n*h[18]+255*h[19])},getUniformLocations:function(t,e){return{uColorMatrix:t.getUniformLocation(e,"uColorMatrix"),uConstants:t.getUniformLocation(e,"uConstants")}},sendUniformData:function(t,e){var i=this.matrix,r=[i[0],i[1],i[2],i[3],i[5],i[6],i[7],i[8],i[10],i[11],i[12],i[13],i[15],i[16],i[17],i[18]],n=[i[4],i[9],i[14],i[19]];t.uniformMatrix4fv(e.uColorMatrix,!1,r),t.uniform4fv(e.uConstants,n)}}),e.Image.filters.ColorMatrix.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.Brightness=r(i.BaseFilter,{type:"Brightness",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uBrightness;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\ncolor.rgb += uBrightness;\ngl_FragColor = color;\n}",brightness:0,mainParameter:"brightness",applyTo2d:function(t){if(0!==this.brightness){var e,i=t.imageData,r=i.data,n=r.length,s=Math.round(255*this.brightness);for(e=0;n>e;e+=4)r[e]=r[e]+s,r[e+1]=r[e+1]+s,r[e+2]=r[e+2]+s}},getUniformLocations:function(t,e){return{uBrightness:t.getUniformLocation(e,"uBrightness")}},sendUniformData:function(t,e){t.uniform1f(e.uBrightness,this.brightness)}}),e.Image.filters.Brightness.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.object.extend,r=e.Image.filters,n=e.util.createClass;r.Convolute=n(r.BaseFilter,{type:"Convolute",opaque:!1,matrix:[0,0,0,0,1,0,0,0,0],fragmentSource:{Convolute_3_1:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[9];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 0);\nfor (float h = 0.0; h < 3.0; h+=1.0) {\nfor (float w = 0.0; w < 3.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 1), uStepH * (h - 1));\ncolor += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 3.0 + w)];\n}\n}\ngl_FragColor = color;\n}",Convolute_3_0:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[9];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 1);\nfor (float h = 0.0; h < 3.0; h+=1.0) {\nfor (float w = 0.0; w < 3.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 1.0), uStepH * (h - 1.0));\ncolor.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 3.0 + w)];\n}\n}\nfloat alpha = texture2D(uTexture, vTexCoord).a;\ngl_FragColor = color;\ngl_FragColor.a = alpha;\n}",Convolute_5_1:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[25];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 0);\nfor (float h = 0.0; h < 5.0; h+=1.0) {\nfor (float w = 0.0; w < 5.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 2.0), uStepH * (h - 2.0));\ncolor += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 5.0 + w)];\n}\n}\ngl_FragColor = color;\n}",Convolute_5_0:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[25];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 1);\nfor (float h = 0.0; h < 5.0; h+=1.0) {\nfor (float w = 0.0; w < 5.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 2.0), uStepH * (h - 2.0));\ncolor.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 5.0 + w)];\n}\n}\nfloat alpha = texture2D(uTexture, vTexCoord).a;\ngl_FragColor = color;\ngl_FragColor.a = alpha;\n}",Convolute_7_1:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[49];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 0);\nfor (float h = 0.0; h < 7.0; h+=1.0) {\nfor (float w = 0.0; w < 7.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 3.0), uStepH * (h - 3.0));\ncolor += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 7.0 + w)];\n}\n}\ngl_FragColor = color;\n}",Convolute_7_0:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[49];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 1);\nfor (float h = 0.0; h < 7.0; h+=1.0) {\nfor (float w = 0.0; w < 7.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 3.0), uStepH * (h - 3.0));\ncolor.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 7.0 + w)];\n}\n}\nfloat alpha = texture2D(uTexture, vTexCoord).a;\ngl_FragColor = color;\ngl_FragColor.a = alpha;\n}",Convolute_9_1:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[81];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 0);\nfor (float h = 0.0; h < 9.0; h+=1.0) {\nfor (float w = 0.0; w < 9.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 4.0), uStepH * (h - 4.0));\ncolor += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 9.0 + w)];\n}\n}\ngl_FragColor = color;\n}",Convolute_9_0:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[81];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 1);\nfor (float h = 0.0; h < 9.0; h+=1.0) {\nfor (float w = 0.0; w < 9.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 4.0), uStepH * (h - 4.0));\ncolor.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 9.0 + w)];\n}\n}\nfloat alpha = texture2D(uTexture, vTexCoord).a;\ngl_FragColor = color;\ngl_FragColor.a = alpha;\n}"},retrieveShader:function(t){var e=Math.sqrt(this.matrix.length),i=this.type+"_"+e+"_"+(this.opaque?1:0),r=this.fragmentSource[i];return t.programCache.hasOwnProperty(i)||(t.programCache[i]=this.createProgram(t.context,r)),t.programCache[i]},applyTo2d:function(t){var e,i,r,n,s,o,a,c,h,l,u,f,d,g=t.imageData,p=g.data,v=this.matrix,b=Math.round(Math.sqrt(v.length)),m=Math.floor(b/2),y=g.width,_=g.height,x=t.ctx.createImageData(y,_),C=x.data,w=this.opaque?1:0;for(u=0;_>u;u++)for(l=0;y>l;l++){for(s=4*(u*y+l),e=0,i=0,r=0,n=0,d=0;b>d;d++)for(f=0;b>f;f++)a=u+d-m,o=l+f-m,0>a||a>=_||0>o||o>=y||(c=4*(a*y+o),h=v[d*b+f],e+=p[c]*h,i+=p[c+1]*h,r+=p[c+2]*h,w||(n+=p[c+3]*h));C[s]=e,C[s+1]=i,C[s+2]=r,C[s+3]=w?p[s+3]:n}t.imageData=x},getUniformLocations:function(t,e){return{uMatrix:t.getUniformLocation(e,"uMatrix"),uOpaque:t.getUniformLocation(e,"uOpaque"),uHalfSize:t.getUniformLocation(e,"uHalfSize"),uSize:t.getUniformLocation(e,"uSize")}},sendUniformData:function(t,e){t.uniform1fv(e.uMatrix,this.matrix)},toObject:function(){return i(this.callSuper("toObject"),{opaque:this.opaque,matrix:this.matrix})}}),e.Image.filters.Convolute.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.Grayscale=r(i.BaseFilter,{type:"Grayscale",fragmentSource:{average:"precision highp float;\nuniform sampler2D uTexture;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nfloat average = (color.r + color.b + color.g) / 3.0;\ngl_FragColor = vec4(average, average, average, color.a);\n}",lightness:"precision highp float;\nuniform sampler2D uTexture;\nuniform int uMode;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 col = texture2D(uTexture, vTexCoord);\nfloat average = (max(max(col.r, col.g),col.b) + min(min(col.r, col.g),col.b)) / 2.0;\ngl_FragColor = vec4(average, average, average, col.a);\n}",luminosity:"precision highp float;\nuniform sampler2D uTexture;\nuniform int uMode;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 col = texture2D(uTexture, vTexCoord);\nfloat average = 0.21 * col.r + 0.72 * col.g + 0.07 * col.b;\ngl_FragColor = vec4(average, average, average, col.a);\n}"},mode:"average",mainParameter:"mode",applyTo2d:function(t){var e,i,r=t.imageData,n=r.data,o=n.length,s=this.mode;for(e=0;o>e;e+=4)"average"===s?i=(n[e]+n[e+1]+n[e+2])/3:"lightness"===s?i=(Math.min(n[e],n[e+1],n[e+2])+Math.max(n[e],n[e+1],n[e+2]))/2:"luminosity"===s&&(i=.21*n[e]+.72*n[e+1]+.07*n[e+2]),n[e]=i,n[e+1]=i,n[e+2]=i},retrieveShader:function(t){var e=this.type+"_"+this.mode;if(!t.programCache.hasOwnProperty(e)){var i=this.fragmentSource[this.mode];t.programCache[e]=this.createProgram(t.context,i)}return t.programCache[e]},getUniformLocations:function(t,e){return{uMode:t.getUniformLocation(e,"uMode")}},sendUniformData:function(t,e){var i=1;t.uniform1i(e.uMode,i)},isNeutralState:function(){return!1}}),e.Image.filters.Grayscale.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.Invert=r(i.BaseFilter,{type:"Invert",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform int uInvert;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nif (uInvert == 1) {\ngl_FragColor = vec4(1.0 - color.r,1.0 -color.g,1.0 -color.b,color.a);\n} else {\ngl_FragColor = color;\n}\n}",invert:!0,mainParameter:"invert",applyTo2d:function(t){var e,i=t.imageData,r=i.data,n=r.length;for(e=0;n>e;e+=4)r[e]=255-r[e],r[e+1]=255-r[e+1],r[e+2]=255-r[e+2]},isNeutralState:function(){return!this.invert},getUniformLocations:function(t,e){return{uInvert:t.getUniformLocation(e,"uInvert")}},sendUniformData:function(t,e){t.uniform1i(e.uInvert,this.invert)}}),e.Image.filters.Invert.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.object.extend,r=e.Image.filters,n=e.util.createClass;r.Noise=n(r.BaseFilter,{type:"Noise",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uStepH;\nuniform float uNoise;\nuniform float uSeed;\nvarying vec2 vTexCoord;\nfloat rand(vec2 co, float seed, float vScale) {\nreturn fract(sin(dot(co.xy * vScale ,vec2(12.9898 , 78.233))) * 43758.5453 * (seed + 0.01) / 2.0);\n}\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\ncolor.rgb += (0.5 - rand(vTexCoord, uSeed, 0.1 / uStepH)) * uNoise;\ngl_FragColor = color;\n}",mainParameter:"noise",noise:0,applyTo2d:function(t){if(0!==this.noise){var e,i,r=t.imageData,n=r.data,o=n.length,s=this.noise;for(e=0,o=n.length;o>e;e+=4)i=(.5-Math.random())*s,n[e]+=i,n[e+1]+=i,n[e+2]+=i}},getUniformLocations:function(t,e){return{uNoise:t.getUniformLocation(e,"uNoise"),uSeed:t.getUniformLocation(e,"uSeed")}},sendUniformData:function(t,e){t.uniform1f(e.uNoise,this.noise/255),t.uniform1f(e.uSeed,Math.random())},toObject:function(){return i(this.callSuper("toObject"),{noise:this.noise})}}),e.Image.filters.Noise.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.Pixelate=r(i.BaseFilter,{type:"Pixelate",blocksize:4,mainParameter:"blocksize",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uBlocksize;\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nfloat blockW = uBlocksize * uStepW;\nfloat blockH = uBlocksize * uStepW;\nint posX = int(vTexCoord.x / blockW);\nint posY = int(vTexCoord.y / blockH);\nfloat fposX = float(posX);\nfloat fposY = float(posY);\nvec2 squareCoords = vec2(fposX * blockW, fposY * blockH);\nvec4 color = texture2D(uTexture, squareCoords);\ngl_FragColor = color;\n}",applyTo2d:function(t){var e,i,r,n,o,s,a,c,h,l,u,f=t.imageData,d=f.data,g=f.height,p=f.width;for(i=0;g>i;i+=this.blocksize)for(r=0;p>r;r+=this.blocksize)for(e=4*i*p+4*r,n=d[e],o=d[e+1],s=d[e+2],a=d[e+3],l=Math.min(i+this.blocksize,g),u=Math.min(r+this.blocksize,p),c=i;l>c;c++)for(h=r;u>h;h++)e=4*c*p+4*h,d[e]=n,d[e+1]=o,d[e+2]=s,d[e+3]=a},isNeutralState:function(){return 1===this.blocksize},getUniformLocations:function(t,e){return{uBlocksize:t.getUniformLocation(e,"uBlocksize"),uStepW:t.getUniformLocation(e,"uStepW"),uStepH:t.getUniformLocation(e,"uStepH")}},sendUniformData:function(t,e){t.uniform1f(e.uBlocksize,this.blocksize)}}),e.Image.filters.Pixelate.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.object.extend,r=e.Image.filters,n=e.util.createClass;r.RemoveColor=n(r.BaseFilter,{type:"RemoveColor",color:"#FFFFFF",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform vec4 uLow;\nuniform vec4 uHigh;\nvarying vec2 vTexCoord;\nvoid main() {\ngl_FragColor = texture2D(uTexture, vTexCoord);\nif(all(greaterThan(gl_FragColor.rgb,uLow.rgb)) && all(greaterThan(uHigh.rgb,gl_FragColor.rgb))) {\ngl_FragColor.a = 0.0;\n}\n}",distance:.02,useAlpha:!1,applyTo2d:function(t){var i,r,n,o,s=t.imageData,a=s.data,c=255*this.distance,h=new e.Color(this.color).getSource(),l=[h[0]-c,h[1]-c,h[2]-c],u=[h[0]+c,h[1]+c,h[2]+c];for(i=0;il[0]&&n>l[1]&&o>l[2]&&r 0.0) {\n"+this.fragmentSource[t]+"}\n}"},retrieveShader:function(t){var e,i=this.type+"_"+this.mode;return t.programCache.hasOwnProperty(i)||(e=this.buildSource(this.mode),t.programCache[i]=this.createProgram(t.context,e)),t.programCache[i]},applyTo2d:function(t){var i,r,n,o,s,a,c,h=t.imageData,l=h.data,u=l.length,f=1-this.alpha;c=new e.Color(this.color).getSource(),i=c[0]*this.alpha,r=c[1]*this.alpha,n=c[2]*this.alpha;for(var d=0;u>d;d+=4)switch(o=l[d],s=l[d+1],a=l[d+2],this.mode){case"multiply":l[d]=o*i/255,l[d+1]=s*r/255,l[d+2]=a*n/255;break;case"screen":l[d]=255-(255-o)*(255-i)/255,l[d+1]=255-(255-s)*(255-r)/255,l[d+2]=255-(255-a)*(255-n)/255;break;case"add":l[d]=o+i,l[d+1]=s+r,l[d+2]=a+n;break;case"diff":case"difference":l[d]=Math.abs(o-i),l[d+1]=Math.abs(s-r),l[d+2]=Math.abs(a-n);break;case"subtract":l[d]=o-i,l[d+1]=s-r,l[d+2]=a-n;break;case"darken":l[d]=Math.min(o,i),l[d+1]=Math.min(s,r),l[d+2]=Math.min(a,n);break;case"lighten":l[d]=Math.max(o,i),l[d+1]=Math.max(s,r),l[d+2]=Math.max(a,n);break;case"overlay":l[d]=128>i?2*o*i/255:255-2*(255-o)*(255-i)/255,l[d+1]=128>r?2*s*r/255:255-2*(255-s)*(255-r)/255,l[d+2]=128>n?2*a*n/255:255-2*(255-a)*(255-n)/255;break;case"exclusion":l[d]=i+o-2*i*o/255,l[d+1]=r+s-2*r*s/255,l[d+2]=n+a-2*n*a/255;break;case"tint":l[d]=i+o*f,l[d+1]=r+s*f,l[d+2]=n+a*f}},getUniformLocations:function(t,e){return{uColor:t.getUniformLocation(e,"uColor")}},sendUniformData:function(t,i){var r=new e.Color(this.color).getSource();r[0]=this.alpha*r[0]/255,r[1]=this.alpha*r[1]/255,r[2]=this.alpha*r[2]/255,r[3]=this.alpha,t.uniform4fv(i.uColor,r)},toObject:function(){return{type:this.type,color:this.color,mode:this.mode,alpha:this.alpha}}}),e.Image.filters.BlendColor.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric,i=e.Image.filters,r=e.util.createClass;i.BlendImage=r(i.BaseFilter,{type:"BlendImage",image:null,mode:"multiply",alpha:1,vertexSource:"attribute vec2 aPosition;\nvarying vec2 vTexCoord;\nvarying vec2 vTexCoord2;\nuniform mat3 uTransformMatrix;\nvoid main() {\nvTexCoord = aPosition;\nvTexCoord2 = (uTransformMatrix * vec3(aPosition, 1.0)).xy;\ngl_Position = vec4(aPosition * 2.0 - 1.0, 0.0, 1.0);\n}",fragmentSource:{multiply:"precision highp float;\nuniform sampler2D uTexture;\nuniform sampler2D uImage;\nuniform vec4 uColor;\nvarying vec2 vTexCoord;\nvarying vec2 vTexCoord2;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nvec4 color2 = texture2D(uImage, vTexCoord2);\ncolor.rgba *= color2.rgba;\ngl_FragColor = color;\n}",mask:"precision highp float;\nuniform sampler2D uTexture;\nuniform sampler2D uImage;\nuniform vec4 uColor;\nvarying vec2 vTexCoord;\nvarying vec2 vTexCoord2;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nvec4 color2 = texture2D(uImage, vTexCoord2);\ncolor.a = color2.a;\ngl_FragColor = color;\n}"},retrieveShader:function(t){var e=this.type+"_"+this.mode,i=this.fragmentSource[this.mode];return t.programCache.hasOwnProperty(e)||(t.programCache[e]=this.createProgram(t.context,i)),t.programCache[e]},applyToWebGL:function(t){var e=t.context,i=this.createTexture(t.filterBackend,this.image);this.bindAdditionalTexture(e,i,e.TEXTURE1),this.callSuper("applyToWebGL",t),this.unbindAdditionalTexture(e,e.TEXTURE1)},createTexture:function(t,e){return t.getCachedTexture(e.cacheKey,e._element)},calculateMatrix:function(){var t=this.image,e=t._element.width,i=t._element.height;return[1/t.scaleX,0,0,0,1/t.scaleY,0,-t.left/e,-t.top/i,1]},applyTo2d:function(t){var i,r,n,o,a,s,c,h,l,u,f,d=t.imageData,g=t.filterBackend.resources,p=d.data,v=p.length,m=d.width,b=d.height,y=this.image;g.blendImage||(g.blendImage=e.util.createCanvasElement()),l=g.blendImage,u=l.getContext("2d"),l.width!==m||l.height!==b?(l.width=m,l.height=b):u.clearRect(0,0,m,b),u.setTransform(y.scaleX,0,0,y.scaleY,y.left,y.top),u.drawImage(y._element,0,0,m,b),f=u.getImageData(0,0,m,b).data;for(var _=0;v>_;_+=4)switch(a=p[_],s=p[_+1],c=p[_+2],h=p[_+3],i=f[_],r=f[_+1],n=f[_+2],o=f[_+3],this.mode){case"multiply":p[_]=a*i/255,p[_+1]=s*r/255,p[_+2]=c*n/255,p[_+3]=h*o/255;break;case"mask":p[_+3]=o}},getUniformLocations:function(t,e){return{uTransformMatrix:t.getUniformLocation(e,"uTransformMatrix"),uImage:t.getUniformLocation(e,"uImage")}},sendUniformData:function(t,e){var i=this.calculateMatrix();t.uniform1i(e.uImage,1),t.uniformMatrix3fv(e.uTransformMatrix,!1,i)},toObject:function(){return{type:this.type,image:this.image&&this.image.toObject(),mode:this.mode,alpha:this.alpha}}}),e.Image.filters.BlendImage.fromObject=function(t,i){e.Image.fromObject(t.image,function(r){var n=e.util.object.clone(t);n.image=r,i(new e.Image.filters.BlendImage(n))})}}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=Math.pow,r=Math.floor,n=Math.sqrt,o=Math.abs,a=Math.round,s=Math.sin,c=Math.ceil,h=e.Image.filters,l=e.util.createClass;h.Resize=l(h.BaseFilter,{type:"Resize",resizeType:"hermite",scaleX:1,scaleY:1,lanczosLobes:3,getUniformLocations:function(t,e){return{uDelta:t.getUniformLocation(e,"uDelta"),uTaps:t.getUniformLocation(e,"uTaps")}},sendUniformData:function(t,e){t.uniform2fv(e.uDelta,this.horizontal?[1/this.width,0]:[0,1/this.height]),t.uniform1fv(e.uTaps,this.taps)},retrieveShader:function(t){var e=this.getFilterWindow(),i=this.type+"_"+e;if(!t.programCache.hasOwnProperty(i)){var r=this.generateShader(e);t.programCache[i]=this.createProgram(t.context,r)}return t.programCache[i]},getFilterWindow:function(){var t=this.tempScale;return Math.ceil(this.lanczosLobes/t)},getTaps:function(){for(var t=this.lanczosCreate(this.lanczosLobes),e=this.tempScale,i=this.getFilterWindow(),r=new Array(i),n=1;i>=n;n++)r[n-1]=t(n*e);return r},generateShader:function(t){for(var t,e=new Array(t),i=this.fragmentSourceTOP,r=1;t>=r;r++)e[r-1]=r+".0 * uDelta";return i+="uniform float uTaps["+t+"];\n",i+="void main() {\n",i+=" vec4 color = texture2D(uTexture, vTexCoord);\n",i+=" float sum = 1.0;\n",e.forEach(function(t,e){i+=" color += texture2D(uTexture, vTexCoord + "+t+") * uTaps["+e+"];\n",i+=" color += texture2D(uTexture, vTexCoord - "+t+") * uTaps["+e+"];\n",i+=" sum += 2.0 * uTaps["+e+"];\n"}),i+=" gl_FragColor = color / sum;\n",i+="}"},fragmentSourceTOP:"precision highp float;\nuniform sampler2D uTexture;\nuniform vec2 uDelta;\nvarying vec2 vTexCoord;\n",applyTo:function(t){t.webgl?(t.passes++,this.width=t.sourceWidth,this.horizontal=!0,this.dW=Math.round(this.width*this.scaleX),this.dH=t.sourceHeight,this.tempScale=this.dW/this.width,this.taps=this.getTaps(),t.destinationWidth=this.dW,this._setupFrameBuffer(t),this.applyToWebGL(t),this._swapTextures(t),t.sourceWidth=t.destinationWidth,this.height=t.sourceHeight,this.horizontal=!1,this.dH=Math.round(this.height*this.scaleY),this.tempScale=this.dH/this.height,this.taps=this.getTaps(),t.destinationHeight=this.dH,this._setupFrameBuffer(t),this.applyToWebGL(t),this._swapTextures(t),t.sourceHeight=t.destinationHeight):this.applyTo2d(t)},isNeutralState:function(){return 1===this.scaleX&&1===this.scaleY},lanczosCreate:function(t){return function(e){if(e>=t||-t>=e)return 0;if(1.1920929e-7>e&&e>-1.1920929e-7)return 1;e*=Math.PI;var i=e/t;return s(e)/e*s(i)/i}},applyTo2d:function(t){var e=t.imageData,i=this.scaleX,r=this.scaleY;this.rcpScaleX=1/i,this.rcpScaleY=1/r;var n,o=e.width,s=e.height,c=a(o*i),h=a(s*r);"sliceHack"===this.resizeType?n=this.sliceByTwo(t,o,s,c,h):"hermite"===this.resizeType?n=this.hermiteFastResize(t,o,s,c,h):"bilinear"===this.resizeType?n=this.bilinearFiltering(t,o,s,c,h):"lanczos"===this.resizeType&&(n=this.lanczosResize(t,o,s,c,h)),t.imageData=n},sliceByTwo:function(t,i,n,o,a){var s,c,h=t.imageData,l=.5,u=!1,f=!1,d=i*l,g=n*l,p=e.filterBackend.resources,v=0,m=0,b=i,y=0;for(p.sliceByTwo||(p.sliceByTwo=document.createElement("canvas")),s=p.sliceByTwo,(s.width<1.5*i||s.heightc;c++){for(C.y=(c+.5)*v,w.y=r(C.y),P=0,k=0,j=0,E=0,A=0,S=w.x-y;S<=w.x+y;S++)if(!(0>S||S>=e)){M=r(1e3*o(S-C.x)),x[M]||(x[M]={});for(var F=w.y-_;F<=w.y+_;F++)0>F||F>=a||(D=r(1e3*o(F-C.y)),x[M][D]||(x[M][D]=g(n(i(M*m,2)+i(D*b,2))/1e3)),T=x[M][D],T>0&&(O=4*(F*e+S),P+=T,k+=T*u[O],j+=T*u[O+1],E+=T*u[O+2],A+=T*u[O+3]))}O=4*(c*s+t),d[O]=k/P,d[O+1]=j/P,d[O+2]=E/P,d[O+3]=A/P}return++tf;f++)for(d=0;n>d;d++)for(l=r(_*d),u=r(x*f),g=_*d-l,p=x*f-u,b=4*(u*e+l),v=0;4>v;v++)a=S[b+v],s=S[b+4+v],c=S[b+C+v],h=S[b+C+4+v],m=a*(1-g)*(1-p)+s*g*(1-p)+c*p*(1-g)+h*g*p,O[y++]=m;return T},hermiteFastResize:function(t,e,i,a,s){for(var h=this.rcpScaleX,l=this.rcpScaleY,u=c(h/2),f=c(l/2),d=t.imageData,g=d.data,p=t.ctx.createImageData(a,s),v=p.data,m=0;s>m;m++)for(var b=0;a>b;b++){for(var y=4*(b+m*a),_=0,x=0,C=0,w=0,S=0,T=0,O=0,P=(m+.5)*l,k=r(m*l);(m+1)*l>k;k++)for(var j=o(P-(k+.5))/f,E=(b+.5)*h,A=j*j,M=r(b*h);(b+1)*h>M;M++){var D=o(E-(M+.5))/u,F=n(A+D*D);F>1&&-1>F||(_=2*F*F*F-3*F*F+1,_>0&&(D=4*(M+k*e),O+=_*g[D+3],C+=_,g[D+3]<255&&(_=_*g[D+3]/250),w+=_*g[D],S+=_*g[D+1],T+=_*g[D+2],x+=_))}v[y]=w/x,v[y+1]=S/x,v[y+2]=T/x,v[y+3]=O/C}return p},toObject:function(){return{type:this.type,scaleX:this.scaleX,scaleY:this.scaleY,resizeType:this.resizeType,lanczosLobes:this.lanczosLobes}}}),e.Image.filters.Resize.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.Contrast=r(i.BaseFilter,{type:"Contrast",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uContrast;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nfloat contrastF = 1.015 * (uContrast + 1.0) / (1.0 * (1.015 - uContrast));\ncolor.rgb = contrastF * (color.rgb - 0.5) + 0.5;\ngl_FragColor = color;\n}",contrast:0,mainParameter:"contrast",applyTo2d:function(t){if(0!==this.contrast){var e,i,r=t.imageData,n=r.data,i=n.length,o=Math.floor(255*this.contrast),a=259*(o+255)/(255*(259-o));for(e=0;i>e;e+=4)n[e]=a*(n[e]-128)+128,n[e+1]=a*(n[e+1]-128)+128,n[e+2]=a*(n[e+2]-128)+128}},getUniformLocations:function(t,e){return{uContrast:t.getUniformLocation(e,"uContrast")}},sendUniformData:function(t,e){t.uniform1f(e.uContrast,this.contrast)}}),e.Image.filters.Contrast.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.Saturation=r(i.BaseFilter,{type:"Saturation",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uSaturation;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nfloat rgMax = max(color.r, color.g);\nfloat rgbMax = max(rgMax, color.b);\ncolor.r += rgbMax != color.r ? (rgbMax - color.r) * uSaturation : 0.00;\ncolor.g += rgbMax != color.g ? (rgbMax - color.g) * uSaturation : 0.00;\ncolor.b += rgbMax != color.b ? (rgbMax - color.b) * uSaturation : 0.00;\ngl_FragColor = color;\n}",saturation:0,mainParameter:"saturation",applyTo2d:function(t){if(0!==this.saturation){var e,i,r=t.imageData,n=r.data,o=n.length,a=-this.saturation;for(e=0;o>e;e+=4)i=Math.max(n[e],n[e+1],n[e+2]),n[e]+=i!==n[e]?(i-n[e])*a:0,n[e+1]+=i!==n[e+1]?(i-n[e+1])*a:0,n[e+2]+=i!==n[e+2]?(i-n[e+2])*a:0}},getUniformLocations:function(t,e){return{uSaturation:t.getUniformLocation(e,"uSaturation")}},sendUniformData:function(t,e){t.uniform1f(e.uSaturation,-this.saturation)}}),e.Image.filters.Saturation.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.Blur=r(i.BaseFilter,{type:"Blur",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform vec2 uDelta;\nvarying vec2 vTexCoord;\nconst float nSamples = 15.0;\nvec3 v3offset = vec3(12.9898, 78.233, 151.7182);\nfloat random(vec3 scale) {\nreturn fract(sin(dot(gl_FragCoord.xyz, scale)) * 43758.5453);\n}\nvoid main() {\nvec4 color = vec4(0.0);\nfloat total = 0.0;\nfloat offset = random(v3offset);\nfor (float t = -nSamples; t <= nSamples; t++) {\nfloat percent = (t + offset - 0.5) / nSamples;\nfloat weight = 1.0 - abs(percent);\ncolor += texture2D(uTexture, vTexCoord + uDelta * percent) * weight;\ntotal += weight;\n}\ngl_FragColor = color / total;\n}",blur:0,mainParameter:"blur",applyTo:function(t){t.webgl?(this.aspectRatio=t.sourceWidth/t.sourceHeight,t.passes++,this._setupFrameBuffer(t),this.horizontal=!0,this.applyToWebGL(t),this._swapTextures(t),this._setupFrameBuffer(t),this.horizontal=!1,this.applyToWebGL(t),this._swapTextures(t)):this.applyTo2d(t)},applyTo2d:function(t){t.imageData=this.simpleBlur(t)},simpleBlur:function(t){var i,r,n=t.filterBackend.resources,o=t.imageData.width,a=t.imageData.height;n.blurLayer1||(n.blurLayer1=e.util.createCanvasElement(),n.blurLayer2=e.util.createCanvasElement()),i=n.blurLayer1,r=n.blurLayer2,(i.width!==o||i.height!==a)&&(r.width=i.width=o,r.height=i.height=a);var s,c,h,l,u=i.getContext("2d"),f=r.getContext("2d"),d=15,g=.06*this.blur*.5;for(u.putImageData(t.imageData,0,0),f.clearRect(0,0,o,a),l=-d;d>=l;l++)s=(Math.random()-.5)/4,c=l/d,h=g*c*o+s,f.globalAlpha=1-Math.abs(c),f.drawImage(i,h,s),u.drawImage(r,0,0),f.globalAlpha=1,f.clearRect(0,0,r.width,r.height);for(l=-d;d>=l;l++)s=(Math.random()-.5)/4,c=l/d,h=g*c*a+s,f.globalAlpha=1-Math.abs(c),f.drawImage(i,s,h),u.drawImage(r,0,0),f.globalAlpha=1,f.clearRect(0,0,r.width,r.height);t.ctx.drawImage(i,0,0);var p=t.ctx.getImageData(0,0,i.width,i.height);return u.globalAlpha=1,u.clearRect(0,0,i.width,i.height),p},getUniformLocations:function(t,e){return{delta:t.getUniformLocation(e,"uDelta")}},sendUniformData:function(t,e){var i=this.chooseRightDelta();t.uniform2fv(e.delta,i)},chooseRightDelta:function(){var t,e=1,i=[0,0];return this.horizontal?this.aspectRatio>1&&(e=1/this.aspectRatio):this.aspectRatio<1&&(e=this.aspectRatio),t=e*this.blur*.12,this.horizontal?i[0]=t:i[1]=t,i}}),i.Blur.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.Gamma=r(i.BaseFilter,{type:"Gamma",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform vec3 uGamma;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nvec3 correction = (1.0 / uGamma);\ncolor.r = pow(color.r, correction.r);\ncolor.g = pow(color.g, correction.g);\ncolor.b = pow(color.b, correction.b);\ngl_FragColor = color;\ngl_FragColor.rgb *= color.a;\n}",gamma:[1,1,1],mainParameter:"gamma",initialize:function(t){this.gamma=[1,1,1],i.BaseFilter.prototype.initialize.call(this,t)},applyTo2d:function(t){var e,i=t.imageData,r=i.data,n=this.gamma,o=r.length,a=1/n[0],s=1/n[1],c=1/n[2];for(this.rVals||(this.rVals=new Uint8Array(256),this.gVals=new Uint8Array(256),this.bVals=new Uint8Array(256)),e=0,o=256;o>e;e++)this.rVals[e]=255*Math.pow(e/255,a),this.gVals[e]=255*Math.pow(e/255,s),this.bVals[e]=255*Math.pow(e/255,c);for(e=0,o=r.length;o>e;e+=4)r[e]=this.rVals[r[e]],r[e+1]=this.gVals[r[e+1]],r[e+2]=this.bVals[r[e+2]]},getUniformLocations:function(t,e){return{uGamma:t.getUniformLocation(e,"uGamma")}},sendUniformData:function(t,e){t.uniform3fv(e.uGamma,this.gamma)}}),e.Image.filters.Gamma.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.Composed=r(i.BaseFilter,{type:"Composed",subFilters:[],initialize:function(t){this.callSuper("initialize",t),this.subFilters=this.subFilters.slice(0)},applyTo:function(t){t.passes+=this.subFilters.length-1,this.subFilters.forEach(function(e){e.applyTo(t)})},toObject:function(){return e.util.object.extend(this.callSuper("toObject"),{subFilters:this.subFilters.map(function(t){return t.toObject()})})},isNeutralState:function(){return!this.subFilters.some(function(t){return!t.isNeutralState()})}}),e.Image.filters.Composed.fromObject=function(t,i){var r=t.subFilters||[],n=r.map(function(t){return new e.Image.filters[t.type](t)}),o=new e.Image.filters.Composed({subFilters:n});return i&&i(o),o}}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,r=e.util.createClass;i.HueRotation=r(i.ColorMatrix,{type:"HueRotation",rotation:0,mainParameter:"rotation",calculateMatrix:function(){var t=this.rotation*Math.PI,i=e.util.cos(t),r=e.util.sin(t),n=1/3,o=Math.sqrt(n)*r,a=1-i;this.matrix=[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0],this.matrix[0]=i+a/3,this.matrix[1]=n*a-o,this.matrix[2]=n*a+o,this.matrix[5]=n*a+o,this.matrix[6]=i+n*a,this.matrix[7]=n*a-o,this.matrix[10]=n*a-o,this.matrix[11]=n*a+o,this.matrix[12]=i+n*a},isNeutralState:function(t){return this.calculateMatrix(),i.BaseFilter.prototype.isNeutralState.call(this,t)},applyTo:function(t){this.calculateMatrix(),i.BaseFilter.prototype.applyTo.call(this,t)}}),e.Image.filters.HueRotation.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this);!function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.object.clone;if(e.Text)return void e.warn("fabric.Text is already defined");var r="fontFamily fontWeight fontSize text underline overline linethrough textAlign fontStyle lineHeight textBackgroundColor charSpacing styles direction path pathStartOffset pathSide pathAlign".split(" ");e.Text=e.util.createClass(e.Object,{_dimensionAffectingProps:["fontSize","fontWeight","fontFamily","fontStyle","lineHeight","text","charSpacing","textAlign","styles","path","pathStartOffset","pathSide","pathAlign"],_reNewline:/\r?\n/,_reSpacesAndTabs:/[ \t\r]/g,_reSpaceAndTab:/[ \t\r]/,_reWords:/\S+/g,type:"text",fontSize:40,fontWeight:"normal",fontFamily:"Times New Roman",underline:!1,overline:!1,linethrough:!1,textAlign:"left",fontStyle:"normal",lineHeight:1.16,superscript:{size:.6,baseline:-.35},subscript:{size:.6,baseline:.11},textBackgroundColor:"",stateProperties:e.Object.prototype.stateProperties.concat(r),cacheProperties:e.Object.prototype.cacheProperties.concat(r),stroke:null,shadow:null,path:null,pathStartOffset:0,pathSide:"left",pathAlign:"baseline",_fontSizeFraction:.222,offsets:{underline:.1,linethrough:-.315,overline:-.88},_fontSizeMult:1.13,charSpacing:0,styles:null,_measuringContext:null,deltaY:0,direction:"ltr",_styleProperties:["stroke","strokeWidth","fill","fontFamily","fontSize","fontWeight","fontStyle","underline","overline","linethrough","deltaY","textBackgroundColor"],__charBounds:[],CACHE_FONT_SIZE:400,MIN_TEXT_WIDTH:2,initialize:function(t,e){this.styles=e?e.styles||{}:{},this.text=t,this.__skipDimension=!0,this.callSuper("initialize",e),this.path&&this.setPathInfo(),this.__skipDimension=!1,this.initDimensions(),this.setCoords(),this.setupState({propertySet:"_dimensionAffectingProps"})},setPathInfo:function(){var t=this.path;t&&(t.segmentsInfo=e.util.getPathSegmentsInfo(t.path))},getMeasuringContext:function(){return e._measuringContext||(e._measuringContext=this.canvas&&this.canvas.contextCache||e.util.createCanvasElement().getContext("2d")),e._measuringContext},_splitText:function(){var t=this._splitTextIntoLines(this.text);return this.textLines=t.lines,this._textLines=t.graphemeLines,this._unwrappedTextLines=t._unwrappedLines,this._text=t.graphemeText,t},initDimensions:function(){this.__skipDimension||(this._splitText(),this._clearCache(),this.path?(this.width=this.path.width,this.height=this.path.height):(this.width=this.calcTextWidth()||this.cursorWidth||this.MIN_TEXT_WIDTH,this.height=this.calcTextHeight()),-1!==this.textAlign.indexOf("justify")&&this.enlargeSpaces(),this.saveState({propertySet:"_dimensionAffectingProps"}))},enlargeSpaces:function(){for(var t,e,i,r,n,o,a,s=0,c=this._textLines.length;c>s;s++)if(("justify"===this.textAlign||s!==c-1&&!this.isEndOfWrapping(s))&&(r=0,n=this._textLines[s],e=this.getLineWidth(s),e=h;h++)o=this.__charBounds[s][h],this._reSpaceAndTab.test(n[h])?(o.width+=t,o.kernedWidth+=t,o.left+=r,r+=t):o.left+=r}},isEndOfWrapping:function(t){return t===this._textLines.length-1},missingNewlineOffset:function(){return 1},toString:function(){return"#'},_getCacheCanvasDimensions:function(){var t=this.callSuper("_getCacheCanvasDimensions"),e=this.fontSize;return t.width+=e*t.zoomX,t.height+=e*t.zoomY,t},_render:function(t){var e=this.path;e&&!e.isNotVisible()&&e._render(t),this._setTextStyles(t),this._renderTextLinesBackground(t),this._renderTextDecoration(t,"underline"),this._renderText(t),this._renderTextDecoration(t,"overline"),this._renderTextDecoration(t,"linethrough")},_renderText:function(t){"stroke"===this.paintFirst?(this._renderTextStroke(t),this._renderTextFill(t)):(this._renderTextFill(t),this._renderTextStroke(t))},_setTextStyles:function(t,e,i){if(t.textBaseline="alphabetical",this.path)switch(this.pathAlign){case"center":t.textBaseline="middle";break;case"ascender":t.textBaseline="top";break;case"descender":t.textBaseline="bottom"}t.font=this._getFontDeclaration(e,i)},calcTextWidth:function(){for(var t=this.getLineWidth(0),e=1,i=this._textLines.length;i>e;e++){var r=this.getLineWidth(e);r>t&&(t=r)}return t},_renderTextLine:function(t,e,i,r,n,o){this._renderChars(t,e,i,r,n,o)},_renderTextLinesBackground:function(t){if(this.textBackgroundColor||this.styleHas("textBackgroundColor")){for(var e,i,r,n,o,a,s,c=t.fillStyle,h=this._getLeftOffset(),l=this._getTopOffset(),u=0,f=0,d=this.path,g=0,p=this._textLines.length;p>g;g++)if(e=this.getHeightOfLine(g),this.textBackgroundColor||this.styleHas("textBackgroundColor",g)){r=this._textLines[g],i=this._getLineLeftOffset(g),f=0,u=0,n=this.getValueOfPropertyAt(g,0,"textBackgroundColor");for(var v=0,m=r.length;m>v;v++)o=this.__charBounds[g][v],a=this.getValueOfPropertyAt(g,v,"textBackgroundColor"),d?(t.save(),t.translate(o.renderLeft,o.renderTop),t.rotate(o.angle),t.fillStyle=a,a&&t.fillRect(-o.width/2,-e/this.lineHeight*(1-this._fontSizeFraction),o.width,e/this.lineHeight),t.restore()):a!==n?(s=h+i+u,"rtl"===this.direction&&(s=this.width-s-f),t.fillStyle=n,n&&t.fillRect(s,l,f,e/this.lineHeight),u=o.left,f=o.width,n=a):f+=o.kernedWidth;a&&!d&&(s=h+i+u,"rtl"===this.direction&&(s=this.width-s-f),t.fillStyle=a,t.fillRect(s,l,f,e/this.lineHeight)),l+=e}else l+=e;t.fillStyle=c,this._removeShadow(t)}},getFontCache:function(t){var i=t.fontFamily.toLowerCase();e.charWidthsCache[i]||(e.charWidthsCache[i]={});var r=e.charWidthsCache[i],n=t.fontStyle.toLowerCase()+"_"+(t.fontWeight+"").toLowerCase();return r[n]||(r[n]={}),r[n]},_measureChar:function(t,e,i,r){var n,o,a,s,c=this.getFontCache(e),h=this._getFontDeclaration(e),l=this._getFontDeclaration(r),u=i+t,f=h===l,d=e.fontSize/this.CACHE_FONT_SIZE;if(i&&void 0!==c[i]&&(a=c[i]),void 0!==c[t]&&(s=n=c[t]),f&&void 0!==c[u]&&(o=c[u],s=o-a),void 0===n||void 0===a||void 0===o){var g=this.getMeasuringContext();this._setTextStyles(g,e,!0)}return void 0===n&&(s=n=g.measureText(t).width,c[t]=n),void 0===a&&f&&i&&(a=g.measureText(i).width,c[i]=a),f&&void 0===o&&(o=g.measureText(u).width,c[u]=o,s=o-a),{width:n*d,kernedWidth:s*d}},getHeightOfChar:function(t,e){return this.getValueOfPropertyAt(t,e,"fontSize")},measureLine:function(t){var e=this._measureLine(t);return 0!==this.charSpacing&&(e.width-=this._getWidthOfCharSpacing()),e.width<0&&(e.width=0),e},_measureLine:function(t){var i,r,n,o,a,s,c=0,h=this._textLines[t],l=0,u=new Array(h.length),f=0,d=this.path,g="right"===this.pathSide;for(this.__charBounds[t]=u,i=0;i=0:is?f%=s:0>f&&(f+=s),this._setGraphemeOnPath(f,o,a),f+=o.kernedWidth}return{width:c,numOfSpaces:l}},_setGraphemeOnPath:function(t,i,r){var n=t+i.kernedWidth/2,o=this.path,a=e.util.getPointOnPath(o.path,n,o.segmentsInfo);i.renderLeft=a.x-r.x,i.renderTop=a.y-r.y,i.angle=a.angle+("right"===this.pathSide?Math.PI:0)},_getGraphemeBox:function(t,e,i,r,n){var o,a=this.getCompleteStyleDeclaration(e,i),s=r?this.getCompleteStyleDeclaration(e,i-1):{},c=this._measureChar(t,a,r,s),h=c.kernedWidth,l=c.width;0!==this.charSpacing&&(o=this._getWidthOfCharSpacing(),l+=o,h+=o);var u={width:l,left:0,height:a.fontSize,kernedWidth:h,deltaY:a.deltaY};if(i>0&&!n){var f=this.__charBounds[e][i-1];u.left=f.left+f.width+c.kernedWidth-c.width}return u},getHeightOfLine:function(t){if(this.__lineHeights[t])return this.__lineHeights[t];for(var e=this._textLines[t],i=this.getHeightOfChar(t,0),r=1,n=e.length;n>r;r++)i=Math.max(this.getHeightOfChar(t,r),i);return this.__lineHeights[t]=i*this.lineHeight*this._fontSizeMult},calcTextHeight:function(){for(var t,e=0,i=0,r=this._textLines.length;r>i;i++)t=this.getHeightOfLine(i),e+=i===r-1?t/this.lineHeight:t;return e},_getLeftOffset:function(){return"ltr"===this.direction?-this.width/2:this.width/2},_getTopOffset:function(){return-this.height/2},_renderTextCommon:function(t,e){t.save();for(var i=0,r=this._getLeftOffset(),n=this._getTopOffset(),o=0,a=this._textLines.length;a>o;o++){var s=this.getHeightOfLine(o),c=s/this.lineHeight,h=this._getLineLeftOffset(o);this._renderTextLine(e,t,this._textLines[o],r+h,n+i+c,o),i+=s}t.restore()},_renderTextFill:function(t){(this.fill||this.styleHas("fill"))&&this._renderTextCommon(t,"fillText")},_renderTextStroke:function(t){(this.stroke&&0!==this.strokeWidth||!this.isEmptyStyles())&&(this.shadow&&!this.shadow.affectStroke&&this._removeShadow(t),t.save(),this._setLineDash(t,this.strokeDashArray),t.beginPath(),this._renderTextCommon(t,"strokeText"),t.closePath(),t.restore())},_renderChars:function(t,i,r,n,o,a){var s,c,h,l,u,f=this.getHeightOfLine(a),d=-1!==this.textAlign.indexOf("justify"),g="",p=0,v=this.path,m=!d&&0===this.charSpacing&&this.isEmptyStyles(a)&&!v,b="ltr"===this.direction,y="ltr"===this.direction?1:-1,_=i.canvas.getAttribute("dir");if(i.save(),_!==this.direction&&(i.canvas.setAttribute("dir",b?"ltr":"rtl"),i.direction=b?"ltr":"rtl",i.textAlign=b?"left":"right"),o-=f*this._fontSizeFraction/this.lineHeight,m)return this._renderChar(t,i,a,0,r.join(""),n,o,f),void i.restore();for(var x=0,C=r.length-1;C>=x;x++)l=x===C||this.charSpacing||v,g+=r[x],h=this.__charBounds[a][x],0===p?(n+=y*(h.kernedWidth-h.width),p+=h.width):p+=h.kernedWidth,d&&!l&&this._reSpaceAndTab.test(r[x])&&(l=!0),l||(s=s||this.getCompleteStyleDeclaration(a,x),c=this.getCompleteStyleDeclaration(a,x+1),l=e.util.hasStyleChanged(s,c,!1)),l&&(v?(i.save(),i.translate(h.renderLeft,h.renderTop),i.rotate(h.angle),this._renderChar(t,i,a,x,g,-p/2,0,f),i.restore()):(u=n,this._renderChar(t,i,a,x,g,u,o,f)),g="",s=c,n+=y*p,p=0);i.restore()},_applyPatternGradientTransformText:function(t){var i,r=e.util.createCanvasElement(),n=this.width+this.strokeWidth,o=this.height+this.strokeWidth;return r.width=n,r.height=o,i=r.getContext("2d"),i.beginPath(),i.moveTo(0,0),i.lineTo(n,0),i.lineTo(n,o),i.lineTo(0,o),i.closePath(),i.translate(n/2,o/2),i.fillStyle=t.toLive(i),this._applyPatternGradientTransform(i,t),i.fill(),i.createPattern(r,"no-repeat")},handleFiller:function(t,e,i){var r,n;return i.toLive?"percentage"===i.gradientUnits||i.gradientTransform||i.patternTransform?(r=-this.width/2,n=-this.height/2,t.translate(r,n),t[e]=this._applyPatternGradientTransformText(i),{offsetX:r,offsetY:n}):(t[e]=i.toLive(t,this),this._applyPatternGradientTransform(t,i)):(t[e]=i,{offsetX:0,offsetY:0})},_setStrokeStyles:function(t,e){return t.lineWidth=e.strokeWidth,t.lineCap=this.strokeLineCap,t.lineDashOffset=this.strokeDashOffset,t.lineJoin=this.strokeLineJoin,t.miterLimit=this.strokeMiterLimit,this.handleFiller(t,"strokeStyle",e.stroke)},_setFillStyles:function(t,e){return this.handleFiller(t,"fillStyle",e.fill)},_renderChar:function(t,e,i,r,n,o,a){var s,c,h=this._getStyleDeclaration(i,r),l=this.getCompleteStyleDeclaration(i,r),u="fillText"===t&&l.fill,f="strokeText"===t&&l.stroke&&l.strokeWidth;(f||u)&&(e.save(),u&&(s=this._setFillStyles(e,l)),f&&(c=this._setStrokeStyles(e,l)),e.font=this._getFontDeclaration(l),h&&h.textBackgroundColor&&this._removeShadow(e),h&&h.deltaY&&(a+=h.deltaY),u&&e.fillText(n,o-s.offsetX,a-s.offsetY),f&&e.strokeText(n,o-c.offsetX,a-c.offsetY),e.restore())},setSuperscript:function(t,e){return this._setScript(t,e,this.superscript)},setSubscript:function(t,e){return this._setScript(t,e,this.subscript)},_setScript:function(t,e,i){var r=this.get2DCursorLocation(t,!0),n=this.getValueOfPropertyAt(r.lineIndex,r.charIndex,"fontSize"),o=this.getValueOfPropertyAt(r.lineIndex,r.charIndex,"deltaY"),a={fontSize:n*i.size,deltaY:o+n*i.baseline};return this.setSelectionStyles(a,t,e),this},_getLineLeftOffset:function(t){var e,i=this.getLineWidth(t),r=this.width-i,n=this.textAlign,o=this.direction,a=0,e=this.isEndOfWrapping(t);return"justify"===n||"justify-center"===n&&!e||"justify-right"===n&&!e||"justify-left"===n&&!e?0:("center"===n&&(a=r/2),"right"===n&&(a=r),"justify-center"===n&&(a=r/2),"justify-right"===n&&(a=r),"rtl"===o&&(a-=r),a)},_clearCache:function(){this.__lineWidths=[],this.__lineHeights=[],this.__charBounds=[]},_shouldClearDimensionCache:function(){var t=this._forceClearCache;return t||(t=this.hasStateChanged("_dimensionAffectingProps")),t&&(this.dirty=!0,this._forceClearCache=!1),t},getLineWidth:function(t){if(void 0!==this.__lineWidths[t])return this.__lineWidths[t];var e=this.measureLine(t),i=e.width;return this.__lineWidths[t]=i,i},_getWidthOfCharSpacing:function(){return 0!==this.charSpacing?this.fontSize*this.charSpacing/1e3:0},getValueOfPropertyAt:function(t,e,i){var r=this._getStyleDeclaration(t,e);return r&&"undefined"!=typeof r[i]?r[i]:this[i]},_renderTextDecoration:function(t,e){if(this[e]||this.styleHas(e)){for(var i,r,n,o,a,s,c,h,l,u,f,d,g,p,v,m,b=this._getLeftOffset(),y=this._getTopOffset(),_=this.path,x=this._getWidthOfCharSpacing(),C=this.offsets[e],w=0,S=this._textLines.length;S>w;w++)if(i=this.getHeightOfLine(w),this[e]||this.styleHas(e,w)){c=this._textLines[w],p=i/this.lineHeight,o=this._getLineLeftOffset(w),u=0,f=0,h=this.getValueOfPropertyAt(w,0,e),m=this.getValueOfPropertyAt(w,0,"fill"),l=y+p*(1-this._fontSizeFraction),r=this.getHeightOfChar(w,0),a=this.getValueOfPropertyAt(w,0,"deltaY");for(var T=0,O=c.length;O>T;T++)if(d=this.__charBounds[w][T],g=this.getValueOfPropertyAt(w,T,e),v=this.getValueOfPropertyAt(w,T,"fill"),n=this.getHeightOfChar(w,T),s=this.getValueOfPropertyAt(w,T,"deltaY"),_&&g&&v)t.save(),t.fillStyle=m,t.translate(d.renderLeft,d.renderTop),t.rotate(d.angle),t.fillRect(-d.kernedWidth/2,C*n+s,d.kernedWidth,this.fontSize/15),t.restore();else if((g!==h||v!==m||n!==r||s!==a)&&f>0){var P=b+o+u;"rtl"===this.direction&&(P=this.width-P-f),h&&m&&(t.fillStyle=m,t.fillRect(P,l+C*r+a,f,this.fontSize/15)),u=d.left,f=d.width,h=g,m=v,r=n,a=s}else f+=d.kernedWidth;var P=b+o+u;"rtl"===this.direction&&(P=this.width-P-f),t.fillStyle=v,g&&v&&t.fillRect(P,l+C*r+a,f-x,this.fontSize/15),y+=i}else y+=i;this._removeShadow(t)}},_getFontDeclaration:function(t,i){var r=t||this,n=this.fontFamily,o=e.Text.genericFonts.indexOf(n.toLowerCase())>-1,a=void 0===n||n.indexOf("'")>-1||n.indexOf(",")>-1||n.indexOf('"')>-1||o?r.fontFamily:'"'+r.fontFamily+'"';return[e.isLikelyNode?r.fontWeight:r.fontStyle,e.isLikelyNode?r.fontStyle:r.fontWeight,i?this.CACHE_FONT_SIZE+"px":r.fontSize+"px",a].join(" ")},render:function(t){this.visible&&(!this.canvas||!this.canvas.skipOffscreen||this.group||this.isOnScreen())&&(this._shouldClearDimensionCache()&&this.initDimensions(),this.callSuper("render",t))},_splitTextIntoLines:function(t){for(var i=t.split(this._reNewline),r=new Array(i.length),n=["\n"],o=[],a=0;an;n++){if(t<=i[n].length)return{lineIndex:n,charIndex:t};t-=i[n].length+this.missingNewlineOffset(n)}return{lineIndex:n-1,charIndex:i[n-1].lengthn;n++)r.push(this.getStyleAtPosition(n,i));return r},getStyleAtPosition:function(t,e){var i=this.get2DCursorLocation(t),r=e?this.getCompleteStyleDeclaration(i.lineIndex,i.charIndex):this._getStyleDeclaration(i.lineIndex,i.charIndex);return r||{}},setSelectionStyles:function(t,e,i){"undefined"==typeof e&&(e=this.selectionStart||0),"undefined"==typeof i&&(i=this.selectionEnd||e);for(var r=e;i>r;r++)this._extendStyles(r,t);return this._forceClearCache=!0,this},_getStyleDeclaration:function(t,e){var i=this.styles&&this.styles[t];return i?i[e]:null},getCompleteStyleDeclaration:function(t,e){for(var i,r=this._getStyleDeclaration(t,e)||{},n={},o=0;o-1&&(t.underline=!0),t.textDecoration.indexOf("line-through")>-1&&(t.linethrough=!0),t.textDecoration.indexOf("overline")>-1&&(t.overline=!0),delete t.textDecoration)}fabric.IText=fabric.util.createClass(fabric.Text,fabric.Observable,{type:"i-text",selectionStart:0,selectionEnd:0,selectionColor:"rgba(17,119,255,0.3)",isEditing:!1,editable:!0,editingBorderColor:"rgba(102,153,255,0.25)",cursorWidth:2,cursorColor:"",cursorDelay:1e3,cursorDuration:600,caching:!0,hiddenTextareaContainer:null,_reSpace:/\s|\n/,_currentCursorOpacity:0,_selectionDirection:null,_abortCursorAnimation:!1,__widthOfSpace:[],inCompositionMode:!1,initialize:function(t,e){this.callSuper("initialize",t,e),this.initBehavior()},setSelectionStart:function(t){t=Math.max(t,0),this._updateAndFire("selectionStart",t)},setSelectionEnd:function(t){t=Math.min(t,this.text.length),this._updateAndFire("selectionEnd",t)},_updateAndFire:function(t,e){this[t]!==e&&(this._fireSelectionChanged(),this[t]=e),this._updateTextarea()},_fireSelectionChanged:function(){this.fire("selection:changed"),this.canvas&&this.canvas.fire("text:selection:changed",{target:this})},initDimensions:function(){this.isEditing&&this.initDelayedCursor(),this.clearContextTop(),this.callSuper("initDimensions")},render:function(t){this.clearContextTop(),this.callSuper("render",t),this.cursorOffsetCache={},this.renderCursorOrSelection()},_render:function(t){this.callSuper("_render",t)},clearContextTop:function(t){if(this.isEditing&&this.canvas&&this.canvas.contextTop){var e=this.canvas.contextTop,i=this.canvas.viewportTransform;e.save(),e.transform(i[0],i[1],i[2],i[3],i[4],i[5]),this.transform(e),this._clearTextArea(e),t||e.restore()}},renderCursorOrSelection:function(){if(this.isEditing&&this.canvas&&this.canvas.contextTop){var t=this._getCursorBoundaries(),e=this.canvas.contextTop;this.clearContextTop(!0),this.selectionStart===this.selectionEnd?this.renderCursor(t,e):this.renderSelection(t,e),e.restore()}},_clearTextArea:function(t){var e=this.width+4,i=this.height+4;t.clearRect(-e/2,-i/2,e,i)},_getCursorBoundaries:function(t){"undefined"==typeof t&&(t=this.selectionStart);var e=this._getLeftOffset(),i=this._getTopOffset(),r=this._getCursorBoundariesOffsets(t);return{left:e,top:i,leftOffset:r.left,topOffset:r.top}},_getCursorBoundariesOffsets:function(t){if(this.cursorOffsetCache&&"top"in this.cursorOffsetCache)return this.cursorOffsetCache;var e,i,r,n,o=0,s=0,a=this.get2DCursorLocation(t);r=a.charIndex,i=a.lineIndex;for(var c=0;i>c;c++)o+=this.getHeightOfLine(c);e=this._getLineLeftOffset(i);var h=this.__charBounds[i][r];return h&&(s=h.left),0!==this.charSpacing&&r===this._textLines[i].length&&(s-=this._getWidthOfCharSpacing()),n={top:o,left:e+(s>0?s:0)},"rtl"===this.direction&&(n.left*=-1),this.cursorOffsetCache=n,this.cursorOffsetCache},renderCursor:function(t,e){var i=this.get2DCursorLocation(),r=i.lineIndex,n=i.charIndex>0?i.charIndex-1:0,o=this.getValueOfPropertyAt(r,n,"fontSize"),s=this.scaleX*this.canvas.getZoom(),a=this.cursorWidth/s,c=t.topOffset,h=this.getValueOfPropertyAt(r,n,"deltaY");c+=(1-this._fontSizeFraction)*this.getHeightOfLine(r)/this.lineHeight-o*(1-this._fontSizeFraction),this.inCompositionMode&&this.renderSelection(t,e),e.fillStyle=this.cursorColor||this.getValueOfPropertyAt(r,n,"fill"),e.globalAlpha=this.__isMousedown?1:this._currentCursorOpacity,e.fillRect(t.left+t.leftOffset-a/2,c+t.top+h,a,o)},renderSelection:function(t,e){for(var i=this.inCompositionMode?this.hiddenTextarea.selectionStart:this.selectionStart,r=this.inCompositionMode?this.hiddenTextarea.selectionEnd:this.selectionEnd,n=-1!==this.textAlign.indexOf("justify"),o=this.get2DCursorLocation(i),s=this.get2DCursorLocation(r),a=o.lineIndex,c=s.lineIndex,h=o.charIndex<0?0:o.charIndex,l=s.charIndex<0?0:s.charIndex,u=a;c>=u;u++){var f=this._getLineLeftOffset(u)||0,d=this.getHeightOfLine(u),g=0,p=0,v=0;if(u===a&&(p=this.__charBounds[a][h].left),u>=a&&c>u)v=n&&!this.isEndOfWrapping(u)?this.width:this.getLineWidth(u)||5;else if(u===c)if(0===l)v=this.__charBounds[c][l].left;else{var m=this._getWidthOfCharSpacing();v=this.__charBounds[c][l-1].left+this.__charBounds[c][l-1].width-m}g=d,(this.lineHeight<1||u===c&&this.lineHeight>1)&&(d/=this.lineHeight);var b=t.left+f+p,y=v-p,_=d,x=0;this.inCompositionMode?(e.fillStyle=this.compositionColor||"black",_=1,x=d):e.fillStyle=this.selectionColor,"rtl"===this.direction&&(b=this.width-b-y),e.fillRect(b,t.top+t.topOffset+x,y,_),t.topOffset+=g}},getCurrentCharFontSize:function(){var t=this._getCurrentCharIndex();return this.getValueOfPropertyAt(t.l,t.c,"fontSize")},getCurrentCharColor:function(){var t=this._getCurrentCharIndex();return this.getValueOfPropertyAt(t.l,t.c,"fill")},_getCurrentCharIndex:function(){var t=this.get2DCursorLocation(this.selectionStart,!0),e=t.charIndex>0?t.charIndex-1:0;return{l:t.lineIndex,c:e}}}),fabric.IText.fromObject=function(e,i){if(e.styles=fabric.util.stylesFromArray(e.styles,e.text),t(e),e.styles)for(var r in e.styles)for(var n in e.styles[r])t(e.styles[r][n]);fabric.Object._fromObject("IText",e,i,"text")}}();!function(){var t=fabric.util.object.clone;fabric.util.object.extend(fabric.IText.prototype,{initBehavior:function(){this.initAddedHandler(),this.initRemovedHandler(),this.initCursorSelectionHandlers(),this.initDoubleClickSimulation(),this.mouseMoveHandler=this.mouseMoveHandler.bind(this)},onDeselect:function(){this.isEditing&&this.exitEditing(),this.selected=!1},initAddedHandler:function(){var t=this;this.on("added",function(){var e=t.canvas;e&&(e._hasITextHandlers||(e._hasITextHandlers=!0,t._initCanvasHandlers(e)),e._iTextInstances=e._iTextInstances||[],e._iTextInstances.push(t))})},initRemovedHandler:function(){var t=this;this.on("removed",function(){var e=t.canvas;e&&(e._iTextInstances=e._iTextInstances||[],fabric.util.removeFromArray(e._iTextInstances,t),0===e._iTextInstances.length&&(e._hasITextHandlers=!1,t._removeCanvasHandlers(e)))})},_initCanvasHandlers:function(t){t._mouseUpITextHandler=function(){t._iTextInstances&&t._iTextInstances.forEach(function(t){t.__isMousedown=!1})},t.on("mouse:up",t._mouseUpITextHandler)},_removeCanvasHandlers:function(t){t.off("mouse:up",t._mouseUpITextHandler)},_tick:function(){this._currentTickState=this._animateCursor(this,1,this.cursorDuration,"_onTickComplete")},_animateCursor:function(t,e,i,r){var n;return n={isAborted:!1,abort:function(){this.isAborted=!0}},t.animate("_currentCursorOpacity",e,{duration:i,onComplete:function(){n.isAborted||t[r]()},onChange:function(){t.canvas&&t.selectionStart===t.selectionEnd&&t.renderCursorOrSelection()},abort:function(){return n.isAborted}}),n},_onTickComplete:function(){var t=this;this._cursorTimeout1&&clearTimeout(this._cursorTimeout1),this._cursorTimeout1=setTimeout(function(){t._currentTickCompleteState=t._animateCursor(t,0,this.cursorDuration/2,"_tick")},100)},initDelayedCursor:function(t){var e=this,i=t?0:this.cursorDelay;this.abortCursorAnimation(),this._currentCursorOpacity=1,this._cursorTimeout2=setTimeout(function(){e._tick()},i)},abortCursorAnimation:function(){var t=this._currentTickState||this._currentTickCompleteState,e=this.canvas;this._currentTickState&&this._currentTickState.abort(),this._currentTickCompleteState&&this._currentTickCompleteState.abort(),clearTimeout(this._cursorTimeout1),clearTimeout(this._cursorTimeout2),this._currentCursorOpacity=0,t&&e&&e.clearContext(e.contextTop||e.contextContainer)},selectAll:function(){return this.selectionStart=0,this.selectionEnd=this._text.length,this._fireSelectionChanged(),this._updateTextarea(),this},getSelectedText:function(){return this._text.slice(this.selectionStart,this.selectionEnd).join("")},findWordBoundaryLeft:function(t){var e=0,i=t-1;if(this._reSpace.test(this._text[i]))for(;this._reSpace.test(this._text[i]);)e++,i--;for(;/\S/.test(this._text[i])&&i>-1;)e++,i--;return t-e},findWordBoundaryRight:function(t){var e=0,i=t;if(this._reSpace.test(this._text[i]))for(;this._reSpace.test(this._text[i]);)e++,i++;for(;/\S/.test(this._text[i])&&i-1;)e++,i--;return t-e},findLineBoundaryRight:function(t){for(var e=0,i=t;!/\n/.test(this._text[i])&&i0&&rthis.__selectionStartOnMouseDown?(this.selectionStart=this.__selectionStartOnMouseDown,this.selectionEnd=e):(this.selectionStart=e,this.selectionEnd=this.__selectionStartOnMouseDown),(this.selectionStart!==i||this.selectionEnd!==r)&&(this.restartCursorIfNeeded(),this._fireSelectionChanged(),this._updateTextarea(),this.renderCursorOrSelection()))}},_setEditingProps:function(){this.hoverCursor="text",this.canvas&&(this.canvas.defaultCursor=this.canvas.moveCursor="text"),this.borderColor=this.editingBorderColor,this.hasControls=this.selectable=!1,this.lockMovementX=this.lockMovementY=!0},fromStringToGraphemeSelection:function(t,e,i){var r=i.slice(0,t),n=fabric.util.string.graphemeSplit(r).length;if(t===e)return{selectionStart:n,selectionEnd:n};var s=i.slice(t,e),o=fabric.util.string.graphemeSplit(s).length;return{selectionStart:n,selectionEnd:n+o}},fromGraphemeToStringSelection:function(t,e,i){var r=i.slice(0,t),n=r.join("").length;if(t===e)return{selectionStart:n,selectionEnd:n};var s=i.slice(t,e),o=s.join("").length;return{selectionStart:n,selectionEnd:n+o}},_updateTextarea:function(){if(this.cursorOffsetCache={},this.hiddenTextarea){if(!this.inCompositionMode){var t=this.fromGraphemeToStringSelection(this.selectionStart,this.selectionEnd,this._text);this.hiddenTextarea.selectionStart=t.selectionStart,this.hiddenTextarea.selectionEnd=t.selectionEnd}this.updateTextareaPosition()}},updateFromTextArea:function(){if(this.hiddenTextarea){this.cursorOffsetCache={},this.text=this.hiddenTextarea.value,this._shouldClearDimensionCache()&&(this.initDimensions(),this.setCoords());var t=this.fromStringToGraphemeSelection(this.hiddenTextarea.selectionStart,this.hiddenTextarea.selectionEnd,this.hiddenTextarea.value);this.selectionEnd=this.selectionStart=t.selectionEnd,this.inCompositionMode||(this.selectionStart=t.selectionStart),this.updateTextareaPosition()}},updateTextareaPosition:function(){if(this.selectionStart===this.selectionEnd){var t=this._calcTextareaPosition();this.hiddenTextarea.style.left=t.left,this.hiddenTextarea.style.top=t.top}},_calcTextareaPosition:function(){if(!this.canvas)return{x:1,y:1};var t=this.inCompositionMode?this.compositionStart:this.selectionStart,e=this._getCursorBoundaries(t),i=this.get2DCursorLocation(t),r=i.lineIndex,n=i.charIndex,s=this.getValueOfPropertyAt(r,n,"fontSize")*this.lineHeight,o=e.leftOffset,a=this.calcTransformMatrix(),c={x:e.left+o,y:e.top+e.topOffset+s},h=this.canvas.getRetinaScaling(),l=this.canvas.upperCanvasEl,u=l.width/h,f=l.height/h,d=u-s,g=f-s,p=l.clientWidth/u,v=l.clientHeight/f;return c=fabric.util.transformPoint(c,a),c=fabric.util.transformPoint(c,this.canvas.viewportTransform),c.x*=p,c.y*=v,c.x<0&&(c.x=0),c.x>d&&(c.x=d),c.y<0&&(c.y=0),c.y>g&&(c.y=g),c.x+=this.canvas._offset.left,c.y+=this.canvas._offset.top,{left:c.x+"px",top:c.y+"px",fontSize:s+"px",charHeight:s}},_saveEditingProps:function(){this._savedProps={hasControls:this.hasControls,borderColor:this.borderColor,lockMovementX:this.lockMovementX,lockMovementY:this.lockMovementY,hoverCursor:this.hoverCursor,selectable:this.selectable,defaultCursor:this.canvas&&this.canvas.defaultCursor,moveCursor:this.canvas&&this.canvas.moveCursor}},_restoreEditingProps:function(){this._savedProps&&(this.hoverCursor=this._savedProps.hoverCursor,this.hasControls=this._savedProps.hasControls,this.borderColor=this._savedProps.borderColor,this.selectable=this._savedProps.selectable,this.lockMovementX=this._savedProps.lockMovementX,this.lockMovementY=this._savedProps.lockMovementY,this.canvas&&(this.canvas.defaultCursor=this._savedProps.defaultCursor,this.canvas.moveCursor=this._savedProps.moveCursor))},exitEditing:function(){var t=this._textBeforeEdit!==this.text,e=this.hiddenTextarea;return this.selected=!1,this.isEditing=!1,this.selectionEnd=this.selectionStart,e&&(e.blur&&e.blur(),e.parentNode&&e.parentNode.removeChild(e)),this.hiddenTextarea=null,this.abortCursorAnimation(),this._restoreEditingProps(),this._currentCursorOpacity=0,this._shouldClearDimensionCache()&&(this.initDimensions(),this.setCoords()),this.fire("editing:exited"),t&&this.fire("modified"),this.canvas&&(this.canvas.off("mouse:move",this.mouseMoveHandler),this.canvas.fire("text:editing:exited",{target:this}),t&&this.canvas.fire("object:modified",{target:this})),this},_removeExtraneousStyles:function(){for(var t in this.styles)this._textLines[t]||delete this.styles[t]},removeStyleFromTo:function(t,e){var i,r,n=this.get2DCursorLocation(t,!0),s=this.get2DCursorLocation(e,!0),o=n.lineIndex,a=n.charIndex,c=s.lineIndex,h=s.charIndex;if(o!==c){if(this.styles[o])for(i=a;i=i;i++)delete this.styles[i];this.shiftLineStyles(c,o-c)}else if(this.styles[o]){r=this.styles[o];var l,u,f=h-a;for(i=a;h>i;i++)delete r[i];for(u in this.styles[o])l=parseInt(u,10),l>=h&&(r[l-f]=r[u],delete r[u])}},shiftLineStyles:function(e,i){var r=t(this.styles);for(var n in this.styles){var s=parseInt(n,10);s>e&&(this.styles[s+i]=r[s],r[s-i]||delete this.styles[s])}},restartCursorIfNeeded:function(){(!this._currentTickState||this._currentTickState.isAborted||!this._currentTickCompleteState||this._currentTickCompleteState.isAborted)&&this.initDelayedCursor()},insertNewlineStyleObject:function(e,i,r,n){var s,o={},a=!1,c=this._unwrappedTextLines[e].length===i;r||(r=1),this.shiftLineStyles(e,r),this.styles[e]&&(s=this.styles[e][0===i?i:i-1]);for(var h in this.styles[e]){var l=parseInt(h,10);l>=i&&(a=!0,o[l-i]=this.styles[e][h],c&&0===i||delete this.styles[e][h])}var u=!1;for(a&&!c&&(this.styles[e+r]=o,u=!0),u&&r--;r>0;)n&&n[r-1]?this.styles[e+r]={0:t(n[r-1])}:s?this.styles[e+r]={0:t(s)}:delete this.styles[e+r],r--;this._forceClearCache=!0},insertCharStyleObject:function(e,i,r,n){this.styles||(this.styles={});var s=this.styles[e],o=s?t(s):{};r||(r=1);for(var a in o){var c=parseInt(a,10);c>=i&&(s[c+r]=o[c],o[c-r]||delete s[c])}if(this._forceClearCache=!0,n)for(;r--;)Object.keys(n[r]).length&&(this.styles[e]||(this.styles[e]={}),this.styles[e][i+r]=t(n[r]));else if(s)for(var h=s[i?i-1:1];h&&r--;)this.styles[e][i+r]=t(h)},insertNewStyleBlock:function(t,e,i){for(var r=this.get2DCursorLocation(e,!0),n=[0],s=0,o=0;o0&&(this.insertCharStyleObject(r.lineIndex,r.charIndex,n[0],i),i=i&&i.slice(n[0]+1)),s&&this.insertNewlineStyleObject(r.lineIndex,r.charIndex+n[0],s);for(var o=1;s>o;o++)n[o]>0?this.insertCharStyleObject(r.lineIndex+o,0,n[o],i):i&&this.styles[r.lineIndex+o]&&i[0]&&(this.styles[r.lineIndex+o][0]=i[0]),i=i&&i.slice(n[o]+1);n[o]>0&&this.insertCharStyleObject(r.lineIndex+o,0,n[o],i)},setSelectionStartEndWithShift:function(t,e,i){t>=i?(e===t?this._selectionDirection="left":"right"===this._selectionDirection&&(this._selectionDirection="left",this.selectionEnd=t),this.selectionStart=i):i>t&&e>i?"right"===this._selectionDirection?this.selectionEnd=i:this.selectionStart=i:(e===t?this._selectionDirection="right":"left"===this._selectionDirection&&(this._selectionDirection="right",this.selectionStart=e),this.selectionEnd=i)},setSelectionInBoundaries:function(){var t=this.text.length;this.selectionStart>t?this.selectionStart=t:this.selectionStart<0&&(this.selectionStart=0),this.selectionEnd>t?this.selectionEnd=t:this.selectionEnd<0&&(this.selectionEnd=0)}})}();fabric.util.object.extend(fabric.IText.prototype,{initDoubleClickSimulation:function(){this.__lastClickTime=+new Date,this.__lastLastClickTime=+new Date,this.__lastPointer={},this.on("mousedown",this.onMouseDown)},onMouseDown:function(t){if(this.canvas){this.__newClickTime=+new Date;var e=t.pointer;this.isTripleClick(e)&&(this.fire("tripleclick",t),this._stopEvent(t.e)),this.__lastLastClickTime=this.__lastClickTime,this.__lastClickTime=this.__newClickTime,this.__lastPointer=e,this.__lastIsEditing=this.isEditing,this.__lastSelected=this.selected}},isTripleClick:function(t){return this.__newClickTime-this.__lastClickTime<500&&this.__lastClickTime-this.__lastLastClickTime<500&&this.__lastPointer.x===t.x&&this.__lastPointer.y===t.y},_stopEvent:function(t){t.preventDefault&&t.preventDefault(),t.stopPropagation&&t.stopPropagation()},initCursorSelectionHandlers:function(){this.initMousedownHandler(),this.initMouseupHandler(),this.initClicks()},doubleClickHandler:function(t){this.isEditing&&this.selectWord(this.getSelectionStartFromPointer(t.e))},tripleClickHandler:function(t){this.isEditing&&this.selectLine(this.getSelectionStartFromPointer(t.e))},initClicks:function(){this.on("mousedblclick",this.doubleClickHandler),this.on("tripleclick",this.tripleClickHandler)},_mouseDownHandler:function(t){!this.canvas||!this.editable||t.e.button&&1!==t.e.button||(this.__isMousedown=!0,this.selected&&(this.inCompositionMode=!1,this.setCursorByClick(t.e)),this.isEditing&&(this.__selectionStartOnMouseDown=this.selectionStart,this.selectionStart===this.selectionEnd&&this.abortCursorAnimation(),this.renderCursorOrSelection()))},_mouseDownHandlerBefore:function(t){!this.canvas||!this.editable||t.e.button&&1!==t.e.button||(this.selected=this===this.canvas._activeObject)},initMousedownHandler:function(){this.on("mousedown",this._mouseDownHandler),this.on("mousedown:before",this._mouseDownHandlerBefore)},initMouseupHandler:function(){this.on("mouseup",this.mouseUpHandler)},mouseUpHandler:function(t){if(this.__isMousedown=!1,!(!this.editable||this.group||t.transform&&t.transform.actionPerformed||t.e.button&&1!==t.e.button)){if(this.canvas){var e=this.canvas._activeObject;if(e&&e!==this)return}this.__lastSelected&&!this.__corner?(this.selected=!1,this.__lastSelected=!1,this.enterEditing(t.e),this.selectionStart===this.selectionEnd?this.initDelayedCursor(!0):this.renderCursorOrSelection()):this.selected=!0}},setCursorByClick:function(t){var e=this.getSelectionStartFromPointer(t),i=this.selectionStart,r=this.selectionEnd;t.shiftKey?this.setSelectionStartEndWithShift(i,r,e):(this.selectionStart=e,this.selectionEnd=e),this.isEditing&&(this._fireSelectionChanged(),this._updateTextarea())},getSelectionStartFromPointer:function(t){for(var e,i,r=this.getLocalPointer(t),n=0,s=0,o=0,a=0,c=0,h=0,l=this._textLines.length;l>h&&o<=r.y;h++)o+=this.getHeightOfLine(h)*this.scaleY,c=h,h>0&&(a+=this._textLines[h-1].length+this.missingNewlineOffset(h-1));e=this._getLineLeftOffset(c),s=e*this.scaleX,i=this._textLines[c],"rtl"===this.direction&&(r.x=this.width*this.scaleX-r.x+s);for(var u=0,f=i.length;f>u&&(n=s,s+=this.__charBounds[c][u].kernedWidth*this.scaleX,s<=r.x);u++)a++;return this._getNewSelectionStartFromOffset(r,n,s,a,f)},_getNewSelectionStartFromOffset:function(t,e,i,r,n){var s=t.x-e,o=i-t.x,a=o>s||0>o?0:1,c=r+a;return this.flipX&&(c=n-c),c>this._text.length&&(c=this._text.length),c}});fabric.util.object.extend(fabric.IText.prototype,{initHiddenTextarea:function(){this.hiddenTextarea=fabric.document.createElement("textarea"),this.hiddenTextarea.setAttribute("autocapitalize","off"),this.hiddenTextarea.setAttribute("autocorrect","off"),this.hiddenTextarea.setAttribute("autocomplete","off"),this.hiddenTextarea.setAttribute("spellcheck","false"),this.hiddenTextarea.setAttribute("data-fabric-hiddentextarea",""),this.hiddenTextarea.setAttribute("wrap","off");var t=this._calcTextareaPosition();this.hiddenTextarea.style.cssText="position: absolute; top: "+t.top+"; left: "+t.left+"; z-index: -999; opacity: 0; width: 1px; height: 1px; font-size: 1px; paddingｰtop: "+t.fontSize+";",this.hiddenTextareaContainer?this.hiddenTextareaContainer.appendChild(this.hiddenTextarea):fabric.document.body.appendChild(this.hiddenTextarea),fabric.util.addListener(this.hiddenTextarea,"keydown",this.onKeyDown.bind(this)),fabric.util.addListener(this.hiddenTextarea,"keyup",this.onKeyUp.bind(this)),fabric.util.addListener(this.hiddenTextarea,"input",this.onInput.bind(this)),fabric.util.addListener(this.hiddenTextarea,"copy",this.copy.bind(this)),fabric.util.addListener(this.hiddenTextarea,"cut",this.copy.bind(this)),fabric.util.addListener(this.hiddenTextarea,"paste",this.paste.bind(this)),fabric.util.addListener(this.hiddenTextarea,"compositionstart",this.onCompositionStart.bind(this)),fabric.util.addListener(this.hiddenTextarea,"compositionupdate",this.onCompositionUpdate.bind(this)),fabric.util.addListener(this.hiddenTextarea,"compositionend",this.onCompositionEnd.bind(this)),!this._clickHandlerInitialized&&this.canvas&&(fabric.util.addListener(this.canvas.upperCanvasEl,"click",this.onClick.bind(this)),this._clickHandlerInitialized=!0)},keysMap:{9:"exitEditing",27:"exitEditing",33:"moveCursorUp",34:"moveCursorDown",35:"moveCursorRight",36:"moveCursorLeft",37:"moveCursorLeft",38:"moveCursorUp",39:"moveCursorRight",40:"moveCursorDown"},keysMapRtl:{9:"exitEditing",27:"exitEditing",33:"moveCursorUp",34:"moveCursorDown",35:"moveCursorLeft",36:"moveCursorRight",37:"moveCursorRight",38:"moveCursorUp",39:"moveCursorLeft",40:"moveCursorDown"},ctrlKeysMapUp:{67:"copy",88:"cut"},ctrlKeysMapDown:{65:"selectAll"},onClick:function(){this.hiddenTextarea&&this.hiddenTextarea.focus()},onKeyDown:function(t){if(this.isEditing){var e="rtl"===this.direction?this.keysMapRtl:this.keysMap;if(t.keyCode in e)this[e[t.keyCode]](t);else{if(!(t.keyCode in this.ctrlKeysMapDown&&(t.ctrlKey||t.metaKey)))return;this[this.ctrlKeysMapDown[t.keyCode]](t)}t.stopImmediatePropagation(),t.preventDefault(),t.keyCode>=33&&t.keyCode<=40?(this.inCompositionMode=!1,this.clearContextTop(),this.renderCursorOrSelection()):this.canvas&&this.canvas.requestRenderAll()}},onKeyUp:function(t){return!this.isEditing||this._copyDone||this.inCompositionMode?void(this._copyDone=!1):void(t.keyCode in this.ctrlKeysMapUp&&(t.ctrlKey||t.metaKey)&&(this[this.ctrlKeysMapUp[t.keyCode]](t),t.stopImmediatePropagation(),t.preventDefault(),this.canvas&&this.canvas.requestRenderAll()))},onInput:function(t){var e=this.fromPaste;if(this.fromPaste=!1,t&&t.stopPropagation(),this.isEditing){var i,r,n,s,o,a=this._splitTextIntoLines(this.hiddenTextarea.value).graphemeText,c=this._text.length,h=a.length,l=h-c,u=this.selectionStart,f=this.selectionEnd,d=u!==f;if(""===this.hiddenTextarea.value)return this.styles={},this.updateFromTextArea(),this.fire("changed"),void(this.canvas&&(this.canvas.fire("text:changed",{target:this}),this.canvas.requestRenderAll()));var g=this.fromStringToGraphemeSelection(this.hiddenTextarea.selectionStart,this.hiddenTextarea.selectionEnd,this.hiddenTextarea.value),p=u>g.selectionStart;d?(i=this._text.slice(u,f),l+=f-u):c>h&&(i=p?this._text.slice(f+l,f):this._text.slice(u,u-l)),r=a.slice(g.selectionEnd-l,g.selectionEnd),i&&i.length&&(r.length&&(n=this.getSelectionStyles(u,u+1,!1),n=r.map(function(){return n[0]})),d?(s=u,o=f):p?(s=f-i.length,o=f):(s=f,o=f+i.length),this.removeStyleFromTo(s,o)),r.length&&(e&&r.join("")===fabric.copiedText&&!fabric.disableStyleCopyPaste&&(n=fabric.copiedTextStyle),this.insertNewStyleBlock(r,u,n)),this.updateFromTextArea(),this.fire("changed"),this.canvas&&(this.canvas.fire("text:changed",{target:this}),this.canvas.requestRenderAll())}},onCompositionStart:function(){this.inCompositionMode=!0},onCompositionEnd:function(){this.inCompositionMode=!1},onCompositionUpdate:function(t){this.compositionStart=t.target.selectionStart,this.compositionEnd=t.target.selectionEnd,this.updateTextareaPosition()},copy:function(){this.selectionStart!==this.selectionEnd&&(fabric.copiedText=this.getSelectedText(),fabric.copiedTextStyle=fabric.disableStyleCopyPaste?null:this.getSelectionStyles(this.selectionStart,this.selectionEnd,!0),this._copyDone=!0)},paste:function(){this.fromPaste=!0},_getClipboardData:function(t){return t&&t.clipboardData||fabric.window.clipboardData},_getWidthBeforeCursor:function(t,e){var i,r=this._getLineLeftOffset(t);return e>0&&(i=this.__charBounds[t][e-1],r+=i.left+i.width),r},getDownCursorOffset:function(t,e){var i=this._getSelectionForOffset(t,e),r=this.get2DCursorLocation(i),n=r.lineIndex;if(n===this._textLines.length-1||t.metaKey||34===t.keyCode)return this._text.length-i;var s=r.charIndex,o=this._getWidthBeforeCursor(n,s),a=this._getIndexOnLine(n+1,o),c=this._textLines[n].slice(s);return c.length+a+1+this.missingNewlineOffset(n)},_getSelectionForOffset:function(t,e){return t.shiftKey&&this.selectionStart!==this.selectionEnd&&e?this.selectionEnd:this.selectionStart},getUpCursorOffset:function(t,e){var i=this._getSelectionForOffset(t,e),r=this.get2DCursorLocation(i),n=r.lineIndex;if(0===n||t.metaKey||33===t.keyCode)return-i;var s=r.charIndex,o=this._getWidthBeforeCursor(n,s),a=this._getIndexOnLine(n-1,o),c=this._textLines[n].slice(0,s),h=this.missingNewlineOffset(n-1);return-this._textLines[n-1].length+a-c.length+(1-h)},_getIndexOnLine:function(t,e){for(var i,r,n=this._textLines[t],s=this._getLineLeftOffset(t),o=s,a=0,c=0,h=n.length;h>c;c++)if(i=this.__charBounds[t][c].width,o+=i,o>e){r=!0;var l=o-i,u=o,f=Math.abs(l-e),d=Math.abs(u-e);a=f>d?c:c-1;break}return r||(a=n.length-1),a},moveCursorDown:function(t){this.selectionStart>=this._text.length&&this.selectionEnd>=this._text.length||this._moveCursorUpOrDown("Down",t)},moveCursorUp:function(t){(0!==this.selectionStart||0!==this.selectionEnd)&&this._moveCursorUpOrDown("Up",t)},_moveCursorUpOrDown:function(t,e){var i="get"+t+"CursorOffset",r=this[i](e,"right"===this._selectionDirection);e.shiftKey?this.moveCursorWithShift(r):this.moveCursorWithoutShift(r),0!==r&&(this.setSelectionInBoundaries(),this.abortCursorAnimation(),this._currentCursorOpacity=1,this.initDelayedCursor(),this._fireSelectionChanged(),this._updateTextarea())},moveCursorWithShift:function(t){var e="left"===this._selectionDirection?this.selectionStart+t:this.selectionEnd+t;return this.setSelectionStartEndWithShift(this.selectionStart,this.selectionEnd,e),0!==t},moveCursorWithoutShift:function(t){return 0>t?(this.selectionStart+=t,this.selectionEnd=this.selectionStart):(this.selectionEnd+=t,this.selectionStart=this.selectionEnd),0!==t},moveCursorLeft:function(t){(0!==this.selectionStart||0!==this.selectionEnd)&&this._moveCursorLeftOrRight("Left",t)},_move:function(t,e,i){var r;if(t.altKey)r=this["findWordBoundary"+i](this[e]);else{if(!t.metaKey&&35!==t.keyCode&&36!==t.keyCode)return this[e]+="Left"===i?-1:1,!0;r=this["findLineBoundary"+i](this[e])}return void 0!==typeof r&&this[e]!==r?(this[e]=r,!0):void 0},_moveLeft:function(t,e){return this._move(t,e,"Left")},_moveRight:function(t,e){return this._move(t,e,"Right")},moveCursorLeftWithoutShift:function(t){var e=!0;return this._selectionDirection="left",this.selectionEnd===this.selectionStart&&0!==this.selectionStart&&(e=this._moveLeft(t,"selectionStart")),this.selectionEnd=this.selectionStart,e},moveCursorLeftWithShift:function(t){return"right"===this._selectionDirection&&this.selectionStart!==this.selectionEnd?this._moveLeft(t,"selectionEnd"):0!==this.selectionStart?(this._selectionDirection="left",this._moveLeft(t,"selectionStart")):void 0},moveCursorRight:function(t){this.selectionStart>=this._text.length&&this.selectionEnd>=this._text.length||this._moveCursorLeftOrRight("Right",t)},_moveCursorLeftOrRight:function(t,e){var i="moveCursor"+t+"With";this._currentCursorOpacity=1,i+=e.shiftKey?"Shift":"outShift",this[i](e)&&(this.abortCursorAnimation(),this.initDelayedCursor(),this._fireSelectionChanged(),this._updateTextarea())},moveCursorRightWithShift:function(t){return"left"===this._selectionDirection&&this.selectionStart!==this.selectionEnd?this._moveRight(t,"selectionStart"):this.selectionEnd!==this._text.length?(this._selectionDirection="right",this._moveRight(t,"selectionEnd")):void 0},moveCursorRightWithoutShift:function(t){var e=!0;return this._selectionDirection="right",this.selectionStart===this.selectionEnd?(e=this._moveRight(t,"selectionStart"),this.selectionEnd=this.selectionStart):this.selectionStart=this.selectionEnd,e},removeChars:function(t,e){"undefined"==typeof e&&(e=t+1),this.removeStyleFromTo(t,e),this._text.splice(t,e-t),this.text=this._text.join(""),this.set("dirty",!0),this._shouldClearDimensionCache()&&(this.initDimensions(),this.setCoords()),this._removeExtraneousStyles()},insertChars:function(t,e,i,r){"undefined"==typeof r&&(r=i),r>i&&this.removeStyleFromTo(i,r);var n=fabric.util.string.graphemeSplit(t);this.insertNewStyleBlock(n,i,e),this._text=[].concat(this._text.slice(0,i),n,this._text.slice(r)),this.text=this._text.join(""),this.set("dirty",!0),this._shouldClearDimensionCache()&&(this.initDimensions(),this.setCoords()),this._removeExtraneousStyles()}});!function(){var t=fabric.util.toFixed,e=/ +/g;fabric.util.object.extend(fabric.Text.prototype,{_toSVG:function(){var t=this._getSVGLeftTopOffsets(),e=this._getSVGTextAndBg(t.textTop,t.textLeft);return this._wrapSVGTextAndBg(e)},toSVG:function(t){return this._createBaseSVGMarkup(this._toSVG(),{reviver:t,noStyle:!0,withShadow:!0})},_getSVGLeftTopOffsets:function(){return{textLeft:-this.width/2,textTop:-this.height/2,lineTop:this.getHeightOfLine(0)}},_wrapSVGTextAndBg:function(t){var e=!0,i=this.getSvgTextDecoration(this);return[t.textBgRects.join(""),' ",t.textSpans.join(""),"\n"]},_getSVGTextAndBg:function(t,e){var i,r=[],n=[],s=t;this._setSVGBg(n);for(var o=0,a=this._textLines.length;a>o;o++)i=this._getLineLeftOffset(o),(this.textBackgroundColor||this.styleHas("textBackgroundColor",o))&&this._setSVGTextLineBg(n,o,e+i,s),this._setSVGTextLineText(r,o,e+i,s),s+=this.getHeightOfLine(o);return{textSpans:r,textBgRects:n}},_createTextCharSpan:function(i,r,n,s){var o=i!==i.trim()||i.match(e),a=this.getSvgSpanStyles(r,o),c=a?'style="'+a+'"':"",h=r.deltaY,l="",u=fabric.Object.NUM_FRACTION_DIGITS;return h&&(l=' dy="'+t(h,u)+'" '),['",fabric.util.string.escapeXml(i),""].join("")},_setSVGTextLineText:function(t,e,i,r){var n,s,o,a,c,h=this.getHeightOfLine(e),l=-1!==this.textAlign.indexOf("justify"),u="",f=0,d=this._textLines[e];r+=h*(1-this._fontSizeFraction)/this.lineHeight;for(var g=0,p=d.length-1;p>=g;g++)c=g===p||this.charSpacing,u+=d[g],o=this.__charBounds[e][g],0===f?(i+=o.kernedWidth-o.width,f+=o.width):f+=o.kernedWidth,l&&!c&&this._reSpaceAndTab.test(d[g])&&(c=!0),c||(n=n||this.getCompleteStyleDeclaration(e,g),s=this.getCompleteStyleDeclaration(e,g+1),c=fabric.util.hasStyleChanged(n,s,!0)),c&&(a=this._getStyleDeclaration(e,g)||{},t.push(this._createTextCharSpan(u,a,i,r)),u="",n=s,i+=f,f=0)},_pushTextBgRect:function(e,i,r,n,s,o){var a=fabric.Object.NUM_FRACTION_DIGITS;e.push(" \n')},_setSVGTextLineBg:function(t,e,i,r){for(var n,s,o=this._textLines[e],a=this.getHeightOfLine(e)/this.lineHeight,c=0,h=0,l=this.getValueOfPropertyAt(e,0,"textBackgroundColor"),u=0,f=o.length;f>u;u++)n=this.__charBounds[e][u],s=this.getValueOfPropertyAt(e,u,"textBackgroundColor"),s!==l?(l&&this._pushTextBgRect(t,l,i+h,r,c,a),h=n.left,c=n.width,l=s):c+=n.kernedWidth;s&&this._pushTextBgRect(t,s,i+h,r,c,a)},_getFillAttributes:function(t){var e=t&&"string"==typeof t?new fabric.Color(t):"";return e&&e.getSource()&&1!==e.getAlpha()?'opacity="'+e.getAlpha()+'" fill="'+e.setAlpha(1).toRgb()+'"':'fill="'+t+'"'},_getSVGLineTopOffset:function(t){for(var e=0,i=0,r=0;t>r;r++)e+=this.getHeightOfLine(r);return i=this.getHeightOfLine(r),{lineTop:e,offset:(this._fontSizeMult-this._fontSizeFraction)*i/(this.lineHeight*this._fontSizeMult)}},getSvgStyles:function(t){var e=fabric.Object.prototype.getSvgStyles.call(this,t);return e+" white-space: pre;"}})}();!function(t){"use strict";var e=t.fabric||(t.fabric={});e.Textbox=e.util.createClass(e.IText,e.Observable,{type:"textbox",minWidth:20,dynamicMinWidth:2,__cachedLines:null,lockScalingFlip:!0,noScaleCache:!1,_dimensionAffectingProps:e.Text.prototype._dimensionAffectingProps.concat("width"),_wordJoiners:/[ \t\r]/,splitByGrapheme:!1,initDimensions:function(){this.__skipDimension||(this.isEditing&&this.initDelayedCursor(),this.clearContextTop(),this._clearCache(),this.dynamicMinWidth=0,this._styleMap=this._generateStyleMap(this._splitText()),this.dynamicMinWidth>this.width&&this._set("width",this.dynamicMinWidth),-1!==this.textAlign.indexOf("justify")&&this.enlargeSpaces(),this.height=this.calcTextHeight(),this.saveState({propertySet:"_dimensionAffectingProps"}))},_generateStyleMap:function(t){for(var e=0,i=0,r=0,n={},s=0;s0?(i=0,r++,e++):!this.splitByGrapheme&&this._reSpaceAndTab.test(t.graphemeText[r])&&s>0&&(i++,r++),n[s]={line:e,offset:i},r+=t.graphemeLines[s].length,i+=t.graphemeLines[s].length;return n},styleHas:function(t,i){if(this._styleMap&&!this.isWrapping){var r=this._styleMap[i];r&&(i=r.line)}return e.Text.prototype.styleHas.call(this,t,i)},isEmptyStyles:function(t){if(!this.styles)return!0;var e,i,r=0,n=t+1,s=!1,o=this._styleMap[t],a=this._styleMap[t+1];o&&(t=o.line,r=o.offset),a&&(n=a.line,s=n===t,e=a.offset),i="undefined"==typeof t?this.styles:{line:this.styles[t]};for(var c in i)for(var h in i[c])if(h>=r&&(!s||e>h))for(var l in i[c][h])return!1;return!0},_getStyleDeclaration:function(t,e){if(this._styleMap&&!this.isWrapping){var i=this._styleMap[t];if(!i)return null;t=i.line,e=i.offset+e}return this.callSuper("_getStyleDeclaration",t,e)},_setStyleDeclaration:function(t,e,i){var r=this._styleMap[t];t=r.line,e=r.offset+e,this.styles[t][e]=i},_deleteStyleDeclaration:function(t,e){var i=this._styleMap[t];t=i.line,e=i.offset+e,delete this.styles[t][e]},_getLineStyle:function(t){var e=this._styleMap[t];return!!this.styles[e.line]},_setLineStyle:function(t){var e=this._styleMap[t];this.styles[e.line]={}},_wrapText:function(t,e){var i,r=[];for(this.isWrapping=!0,i=0;io;o++){var c=this._getGraphemeBox(t[o],e,o+i,r,s);n+=c.kernedWidth,r=t[o]}return n},_wrapLine:function(t,i,r,n){var s=0,o=this.splitByGrapheme,a=[],c=[],h=o?e.util.string.graphemeSplit(t):t.split(this._wordJoiners),l="",u=0,f=o?"":" ",d=0,g=0,p=0,v=!0,m=this._getWidthOfCharSpacing(),n=n||0;0===h.length&&h.push([]),r-=n;for(var b=0;br&&!v?(a.push(c),c=[],s=d,v=!0):s+=m,v||o||c.push(f),c=c.concat(l),g=o?0:this._measureWord([f],i,u),u++,v=!1,d>p&&(p=d);return b&&a.push(c),p+n>this.dynamicMinWidth&&(this.dynamicMinWidth=p-m+n),a},isEndOfWrapping:function(t){return this._styleMap[t+1]?this._styleMap[t+1].line!==this._styleMap[t].line?!0:!1:!0},missingNewlineOffset:function(t){return this.splitByGrapheme?this.isEndOfWrapping(t)?1:0:1},_splitTextIntoLines:function(t){for(var i=e.Text.prototype._splitTextIntoLines.call(this,t),r=this._wrapText(i.lines,this.width),n=new Array(r.length),s=0;s',this.eraser.toSVG(t),"","\n"].join("")):""},_createBaseClipPathSVGMarkup:function(t,e){return[this._createEraserSVGMarkup(e&&e.reviver),n.call(this,t,e)].join("")},_createBaseSVGMarkup:function(t,e){return[this._createEraserSVGMarkup(e&&e.reviver),s.call(this,t,e)].join("")}});var o=fabric.Group.prototype._restoreObjectsState;fabric.util.object.extend(fabric.Group.prototype,{_addEraserPathToObjects:function(t){this._objects.forEach(function(e){fabric.EraserBrush.prototype._addPathToObjectEraser.call(fabric.EraserBrush.prototype,e,t)})},applyEraserToObjects:function(){var t=this,e=this.eraser;if(e){delete this.eraser;var i=t.calcTransformMatrix();e.clone(function(e){var r=t.clipPath;e.getObjects("path").forEach(function(e){var n=fabric.util.multiplyTransformMatrices(i,e.calcTransformMatrix());fabric.util.applyTransformToObject(e,n),r?r.clone(function(r){var n=fabric.EraserBrush.prototype.applyClipPathToPath.call(fabric.EraserBrush.prototype,e,r,i);t._addEraserPathToObjects(n)},["absolutePositioned","inverted"]):t._addEraserPathToObjects(e)})})}},_restoreObjectsState:function(){return this.erasable===!0&&this.applyEraserToObjects(),o.call(this)}}),fabric.Eraser=fabric.util.createClass(fabric.Group,{type:"eraser",originX:"center",originY:"center",drawObject:function(t){t.save(),t.fillStyle="black",t.fillRect(-this.width/2,-this.height/2,this.width,this.height),t.restore(),this.callSuper("drawObject",t)},_getBounds:function(){},_toSVG:function(t){var e=["\n"],i=-this.width/2,r=-this.height/2,n=["\n'].join("");e.push(" ",n);for(var s=0,o=this._objects.length;o>s;s++)e.push(" ",this._objects[s].toSVG(t));return e.push("\n"),e}}),fabric.Eraser.fromObject=function(t,e){var i=t.objects;fabric.util.enlivenObjects(i,function(i){var r=fabric.util.object.clone(t,!0);delete r.objects,fabric.util.enlivenObjectEnlivables(t,r,function(){e&&e(new fabric.Eraser(i,r,!0))})})};var a=fabric.Canvas.prototype._renderOverlay;fabric.util.object.extend(fabric.Canvas.prototype,{isErasing:function(){return this.isDrawingMode&&this.freeDrawingBrush&&"eraser"===this.freeDrawingBrush.type&&this.freeDrawingBrush._isErasing},_renderOverlay:function(t){a.call(this,t),this.isErasing()&&!this.freeDrawingBrush.inverted&&this.freeDrawingBrush._render()}}),fabric.EraserBrush=fabric.util.createClass(fabric.PencilBrush,{type:"eraser",inverted:!1,_isErasing:!1,_isErasable:function(t){return t.erasable!==!1},_prepareCollectionTraversal:function(t,e,i){t.forEachObject(function(r){r.forEachObject&&"deep"===r.erasable?this._prepareCollectionTraversal(r,e,i):!this.inverted&&r.erasable&&r.visible?(r.visible=!1,t.dirty=!0,i.visibility.push(r),i.collection.push(t)):this.inverted&&r.visible&&(r.erasable&&r.eraser?(r.eraser.inverted=!0,r.dirty=!0,t.dirty=!0,i.eraser.push(r),i.collection.push(t)):(r.visible=!1,t.dirty=!0,i.visibility.push(r),i.collection.push(t)))},this)},preparePattern:function(){this._patternCanvas||(this._patternCanvas=fabric.util.createCanvasElement());var t=this._patternCanvas;t.width=this.canvas.width,t.height=this.canvas.height;var e=t.getContext("2d");if(this.canvas._isRetinaScaling()){var i=this.canvas.getRetinaScaling();this.canvas.__initRetinaScaling(i,t,e)}var r=this.canvas.backgroundImage,n=r&&this._isErasable(r),s=this.canvas.overlayImage,o=s&&this._isErasable(s);if(!this.inverted&&(r&&!n||this.canvas.backgroundColor))n&&(this.canvas.backgroundImage=void 0),this.canvas._renderBackground(e),n&&(this.canvas.backgroundImage=r);else if(this.inverted&&r&&n){var c=this.canvas.backgroundColor;this.canvas.backgroundColor=void 0,this.canvas._renderBackground(e),this.canvas.backgroundColor=c}e.save(),e.transform.apply(e,this.canvas.viewportTransform);var h={visibility:[],eraser:[],collection:[]};if(this._prepareCollectionTraversal(this.canvas,e,h),this.canvas._renderObjects(e,this.canvas._objects),h.visibility.forEach(function(t){t.visible=!0}),h.eraser.forEach(function(t){t.eraser.inverted=!1,t.dirty=!0}),h.collection.forEach(function(t){t.dirty=!0}),e.restore(),!this.inverted&&(s&&!o||this.canvas.overlayColor))o&&(this.canvas.overlayImage=void 0),a.call(this.canvas,e),o&&(this.canvas.overlayImage=s);else if(this.inverted&&s&&o){var c=this.canvas.overlayColor;this.canvas.overlayColor=void 0,a.call(this.canvas,e),this.canvas.overlayColor=c}},_setBrushStyles:function(t){this.callSuper("_setBrushStyles",t),t.strokeStyle="black"},_saveAndTransform:function(t){this.callSuper("_saveAndTransform",t),this._setBrushStyles(t),t.globalCompositeOperation=t===this.canvas.getContext()?"destination-out":"source-over"},needsFullRender:function(){return!0},onMouseDown:function(t,e){this.canvas._isMainEvent(e.e)&&(this._prepareForDrawing(t),this._captureDrawingPath(t),this.preparePattern(),this._isErasing=!0,this.canvas.fire("erasing:start"),this._render())},_render:function(){var t;this.inverted||(t=this.canvas.getContext(),this.callSuper("_render",t)),t=this.canvas.contextTop,this.canvas.clearContext(t),this.callSuper("_render",t),t.save();var e=this.canvas.getRetinaScaling(),i=1/e;t.scale(i,i),t.globalCompositeOperation="source-in",t.drawImage(this._patternCanvas,0,0),t.restore()},createPath:function(t){var e=this.callSuper("createPath",t);return e.globalCompositeOperation=this.inverted?"source-over":"destination-out",e.stroke=this.inverted?"white":"black",e},applyClipPathToPath:function(t,e,i){var r=fabric.util.invertTransform(t.calcTransformMatrix()),n=e.calcTransformMatrix(),s=e.absolutePositioned?r:fabric.util.multiplyTransformMatrices(r,i);return e.absolutePositioned=!1,fabric.util.applyTransformToObject(e,fabric.util.multiplyTransformMatrices(s,n)),t.clipPath=t.clipPath?fabric.util.mergeClipPaths(e,t.clipPath):e,t},clonePathWithClipPath:function(t,e,i){var r=e.calcTransformMatrix(),n=e.clipPath,s=this;t.clone(function(t){n.clone(function(e){i(s.applyClipPathToPath(t,e,r))},["absolutePositioned","inverted"])})},_addPathToObjectEraser:function(t,e){var i=this;if(t.forEachObject&&"deep"===t.erasable){var r=t._objects.filter(function(t){return t.erasable});return void(r.length>0&&t.clipPath?this.clonePathWithClipPath(e,t,function(t){r.forEach(function(e){i._addPathToObjectEraser(e,t)})}):r.length>0&&r.forEach(function(t){i._addPathToObjectEraser(t,e)}))}var n=t.eraser;n||(n=new fabric.Eraser,t.eraser=n),e.clone(function(e){var r=fabric.util.multiplyTransformMatrices(fabric.util.invertTransform(t.calcTransformMatrix()),e.calcTransformMatrix());fabric.util.applyTransformToObject(e,r),n.addWithUpdate(e),t.set("dirty",!0),t.fire("erasing:end",{path:e}),t.group&&Array.isArray(i.__subTargets)&&i.__subTargets.push(t)})},applyEraserToCanvas:function(t){var e=this.canvas,i={};return["backgroundImage","overlayImage"].forEach(function(r){var n=e[r];n&&n.erasable&&(this._addPathToObjectEraser(n,t),i[r]=n)},this),i},_finalizeAndAddPath:function(){var t=this.canvas.contextTop,e=this.canvas;t.closePath(),this.decimate&&(this._points=this.decimatePoints(this._points,this.decimate)),e.clearContext(e.contextTop),this._isErasing=!1;var i=this._points&&this._points.length>1?this.convertPointsToSVGPath(this._points):null;if(!i||this._isEmptySVGPath(i))return e.fire("erasing:end"),void e.requestRenderAll();var r=this.createPath(i);r.setCoords(),e.fire("before:path:created",{path:r});var n=this.applyEraserToCanvas(r),s=this;this.__subTargets=[];var o=[];e.forEachObject(function(t){t.erasable&&t.intersectsWithObject(r,!0,!0)&&(s._addPathToObjectEraser(t,r),o.push(t))}),e.fire("erasing:end",{path:r,targets:o,subTargets:this.__subTargets,drawables:n}),delete this.__subTargets,e.requestRenderAll(),this._resetShadow(),e.fire("path:created",{path:r})}})}(); \ No newline at end of file