vue-fabric
Version:
fabric vue components
2 lines • 296 kB
JavaScript
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),h=new Uint8ClampedArray(this.imageBuffer,0,o);t.readPixels(0,0,n,s,t.RGBA,t.UNSIGNED_BYTE,a);var c=new ImageData(h,n,s);r.putImageData(c,0,0)}var fabric=fabric||{version:"2.3.6"};"undefined"!=typeof exports?exports.fabric=fabric:"function"==typeof define&&define.amd&&define([],function(){return fabric}),"undefined"!=typeof document&&"undefined"!=typeof window?(fabric.document=document,fabric.window=window):(fabric.document=require("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"]}}),fabric.jsdomImplForWrapper=require("jsdom/lib/jsdom/living/generated/utils").implForWrapper,fabric.nodeCanvas=require("jsdom/lib/jsdom/utils").Canvas,fabric.window=fabric.document.defaultView,DOMParser=require("xmldom").DOMParser),fabric.isTouchSupported="ontouchstart"in fabric.window,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-linejoin","stroke-miterlimit","stroke-opacity","stroke-width","id","paint-order","instantiated_by_use"],fabric.DPI=96,fabric.reNum="(?:[-+]?(?:\\d+|\\d*\\.\\d+)(?:e[-+]?\\d+)?)",fabric.fontPaths={},fabric.iMatrix=[1,0,0,1,0,0],fabric.canvasModule="canvas",fabric.perfLimitSizeTotal=2097152,fabric.maxCacheSideLimit=4096,fabric.minCacheSideLimit=256,fabric.charWidthsCache={},fabric.textureSize=2048,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.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 i=this.__eventListeners[t];e?i[i.indexOf(e)]=!1:fabric.util.array.fill(i,!1)}}function e(t,e){if(this.__eventListeners||(this.__eventListeners={}),1===arguments.length)for(var i in t)this.on(i,t[i]);else this.__eventListeners[t]||(this.__eventListeners[t]=[]),this.__eventListeners[t].push(e);return this}function i(e,i){if(this.__eventListeners){if(0===arguments.length)for(e in this.__eventListeners)t.call(this,e);else if(1===arguments.length&&"object"==typeof arguments[0])for(var r in e)t.call(this,r,e[r]);else t.call(this,e,i);return this}}function r(t,e){if(this.__eventListeners){var i=this.__eventListeners[t];if(i){for(var r=0,n=i.length;r<n;r++)i[r]&&i[r].call(this,e||{});return this.__eventListeners[t]=i.filter(function(t){return t!==!1}),this}}}fabric.Observable={observe:e,stopObserving:i,fire:r,on:e,off:i,trigger:r}}(),fabric.Collection={_objects:[],add:function(){if(this._objects.push.apply(this._objects,arguments),this._onObjectAdded)for(var t=0,e=arguments.length;t<e;t++)this._onObjectAdded(arguments[t]);return this.renderOnAddRemove&&this.requestRenderAll(),this},insertAt:function(t,e,i){var r=this._objects;return i?r[e]=t:r.splice(e,0,t),this._onObjectAdded&&this._onObjectAdded(t),this.renderOnAddRemove&&this.requestRenderAll(),this},remove:function(){for(var t,e=this._objects,i=!1,r=0,n=arguments.length;r<n;r++)t=e.indexOf(arguments[r]),t!==-1&&(i=!0,e.splice(t,1),this._onObjectRemoved&&this._onObjectRemoved(arguments[r]));return this.renderOnAddRemove&&i&&this.requestRenderAll(),this},forEachObject:function(t,e){for(var i=this.getObjects(),r=0,n=i.length;r<n;r++)t.call(e,i[r],r,i);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){return this._objects.indexOf(t)>-1},complexity:function(){return this._objects.reduce(function(t,e){return t+=e.complexity?e.complexity():0},0)}},fabric.CommonMethods={_setOptions:function(t){for(var e in t)this.set(e,t[e])},_initGradient:function(t,e){!t||!t.colorStops||t instanceof fabric.Gradient||this.set(e,new fabric.Gradient(t))},_initPattern:function(t,e,i){!t||!t.source||t instanceof fabric.Pattern?i&&i():this.set(e,new fabric.Pattern(t,i))},_initClipping:function(t){if(t.clipTo&&"string"==typeof t.clipTo){var e=fabric.util.getFunctionBody(t.clipTo);"undefined"!=typeof e&&(this.clipTo=new Function("ctx",e))}},_setObject:function(t){for(var e in t)this._set(e,t[e])},set:function(t,e){return"object"==typeof t?this._setObject(t):"function"==typeof e&&"clipTo"!==t?this._set(t,e(this.get(t))):this._set(t,e),this},_set:function(t,e){this[t]=e},toggle:function(t){var e=this.get(t);return"boolean"==typeof e&&this.set(t,!e),this},get:function(t){return this[t]}},function(t){var e=Math.sqrt,i=Math.atan2,r=Math.pow,n=Math.abs,s=Math.PI/180,o=Math.PI/2;fabric.util={cos:function(t){if(0===t)return 1;t<0&&(t=-t);var e=t/o;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/o,i=1;switch(t<0&&(i=-1),e){case 1:return i;case 2:return 0;case 3:return-i}return Math.sin(t)},removeFromArray:function(t,e){var i=t.indexOf(e);return i!==-1&&t.splice(i,1),t},getRandomInt:function(t,e){return Math.floor(Math.random()*(e-t+1))+t},degreesToRadians:function(t){return t*s},radiansToDegrees:function(t){return t/s},rotatePoint:function(t,e,i){t.subtractEquals(e);var r=fabric.util.rotateVector(t,i);return new fabric.Point(r.x,r.y).addEquals(e)},rotateVector:function(t,e){var i=fabric.util.sin(e),r=fabric.util.cos(e),n=t.x*r-t.y*i,s=t.x*i+t.y*r;return{x:n,y:s}},transformPoint:function(t,e,i){return i?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){var e=[t[0].x,t[1].x,t[2].x,t[3].x],i=fabric.util.array.min(e),r=fabric.util.array.max(e),n=r-i,s=[t[0].y,t[1].y,t[2].y,t[3].y],o=fabric.util.array.min(s),a=fabric.util.array.max(s),h=a-o;return{left:i,top:o,width:n,height:h}},invertTransform:function(t){var e=1/(t[0]*t[3]-t[1]*t[2]),i=[e*t[3],-e*t[1],-e*t[2],e*t[0]],r=fabric.util.transformPoint({x:t[4],y:t[5]},i,!0);return i[4]=-r.x,i[5]=-r.y,i},toFixed:function(t,e){return parseFloat(Number(t).toFixed(e))},parseUnit:function(t,e){var i=/\D{0,2}$/.exec(t),r=parseFloat(t);switch(e||(e=fabric.Text.DEFAULT_SVG_FONT_SIZE),i[0]){case"mm":return r*fabric.DPI/25.4;case"cm":return r*fabric.DPI/2.54;case"in":return r*fabric.DPI;case"pt":return r*fabric.DPI/72;case"pc":return r*fabric.DPI/72*12;case"em":return r*e;default:return r}},falseFunction:function(){return!1},getKlass:function(t,e){return t=fabric.util.string.camelize(t.charAt(0).toUpperCase()+t.slice(1)),fabric.util.resolveNamespace(e)[t]},getSvgAttributes:function(t){var e=["instantiated_by_use","style","id","class"];switch(t){case"linearGradient":e=e.concat(["x1","y1","x2","y2","gradientUnits","gradientTransform"]);break;case"radialGradient":e=e.concat(["gradientUnits","gradientTransform","cx","cy","r","fx","fy","fr"]);break;case"stop":e=e.concat(["offset","stop-color","stop-opacity"])}return e},resolveNamespace:function(e){if(!e)return fabric;var i,r=e.split("."),n=r.length,s=t||fabric.window;for(i=0;i<n;++i)s=s[r[i]];return s},loadImage:function(t,e,i,r){if(!t)return void(e&&e.call(i,t));var n=fabric.util.createImage(),s=function(){e&&e.call(i,n),n=n.onload=n.onerror=null};n.onload=s,n.onerror=function(){fabric.log("Error loading "+n.src),e&&e.call(i,null,!0),n=n.onload=n.onerror=null},0!==t.indexOf("data")&&r&&(n.crossOrigin=r),"data:image/svg"===t.substring(0,14)&&(n.onload=null,fabric.util.loadImageInDom(n,s)),n.src=t},loadImageInDom:function(t,e){var i=fabric.document.createElement("div");i.style.width=i.style.height="1px",i.style.left=i.style.top="-100%",i.style.position="absolute",i.appendChild(t),fabric.document.querySelector("body").appendChild(i),t.onload=function(){e(),i.parentNode.removeChild(i),i=null}},enlivenObjects:function(t,e,i,r){function n(){++o===a&&e&&e(s)}t=t||[];var s=[],o=0,a=t.length;return a?void t.forEach(function(t,e){if(!t||!t.type)return void n();var o=fabric.util.getKlass(t.type,i);o.fromObject(t,function(i,o){o||(s[e]=i),r&&r(t,i,o),n()})}):void(e&&e(s))},enlivenPatterns:function(t,e){function i(){++n===s&&e&&e(r)}t=t||[];var r=[],n=0,s=t.length;return s?void t.forEach(function(t,e){t&&t.source?new fabric.Pattern(t,function(t){r[e]=t,i()}):(r[e]=t,i())}):void(e&&e(r))},groupSVGElements:function(t,e,i){var r;return 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)),r=new fabric.Group(t,e),"undefined"!=typeof i&&(r.sourcePath=i),r)},populateWithProperties:function(t,e,i){if(i&&"[object Array]"===Object.prototype.toString.call(i))for(var r=0,n=i.length;r<n;r++)i[r]in t&&(e[i[r]]=t[i[r]])},drawDashedLine:function(t,r,n,s,o,a){var h=s-r,c=o-n,l=e(h*h+c*c),u=i(c,h),f=a.length,d=0,g=!0;for(t.save(),t.translate(r,n),t.moveTo(0,0),t.rotate(u),r=0;l>r;)r+=a[d++%f],r>l&&(r=l),t[g?"lineTo":"moveTo"](r,0),g=!g;t.restore()},createCanvasElement:function(){return fabric.document.createElement("canvas")},createImage:function(){return fabric.document.createElement("img")},clipContext:function(t,e){e.save(),e.beginPath(),t.clipTo(e),e.clip()},multiplyTransformMatrices:function(t,e,i){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],i?0:t[0]*e[4]+t[2]*e[5]+t[4],i?0:t[1]*e[4]+t[3]*e[5]+t[5]]},qrDecompose:function(t){var n=i(t[1],t[0]),o=r(t[0],2)+r(t[1],2),a=e(o),h=(t[0]*t[3]-t[2]*t[1])/a,c=i(t[0]*t[2]+t[1]*t[3],o);return{angle:n/s,scaleX:a,scaleY:h,skewX:c/s,skewY:0,translateX:t[4],translateY:t[5]}},customTransformMatrix:function(t,e,i){var r=[1,0,n(Math.tan(i*s)),1],o=[n(t),0,0,n(e)];return fabric.util.multiplyTransformMatrices(o,r,!0)},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}},getFunctionBody:function(t){return(String(t).match(/function[^{]*\{([\s\S]*)\}/)||{})[1]},isTransparent:function(t,e,i,r){r>0&&(e>r?e-=r:e=0,i>r?i-=r:i=0);var n,s,o=!0,a=t.getImageData(e,i,2*r||1,2*r||1),h=a.data.length;for(n=3;n<h&&(s=a.data[n],o=s<=0,o!==!1);n+=4);return a=null,o},parsePreserveAspectRatioAttribute:function(t){var e,i="meet",r="Mid",n="Mid",s=t.split(" ");return s&&s.length&&(i=s.pop(),"meet"!==i&&"slice"!==i?(e=i,i="meet"):s.length&&(e=s.pop())),r="none"!==e?e.slice(1,4):"none",n="none"!==e?e.slice(5,8):"none",{meetOrSlice:i,alignX:r,alignY:n}},clearFabricFontCache:function(t){t=(t||"").toLowerCase(),t?fabric.charWidthsCache[t]&&delete fabric.charWidthsCache[t]:fabric.charWidthsCache={}},limitDimsByArea:function(t,e){var i=Math.sqrt(e*t),r=Math.floor(e/i);return{x:Math.floor(i),y:r}},capValue:function(t,e,i){return Math.max(t,Math.min(e,i))},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)}}}("undefined"!=typeof exports?exports:this),function(){function t(t,r,s,o,a,h,c){var l=n.call(arguments);if(fabric.arcToSegmentsCache[l])return fabric.arcToSegmentsCache[l];var u=Math.PI,f=c*u/180,d=fabric.util.sin(f),g=fabric.util.cos(f),p=0,v=0;s=Math.abs(s),o=Math.abs(o);var m=-g*t*.5-d*r*.5,b=-g*r*.5+d*t*.5,y=s*s,_=o*o,x=b*b,C=m*m,S=y*_-y*x-_*C,T=0;if(S<0){var w=Math.sqrt(1-S/(y*_));s*=w,o*=w}else T=(a===h?-1:1)*Math.sqrt(S/(y*x+_*C));var O=T*s*b/o,k=-T*o*m/s,E=g*O-d*k+.5*t,D=d*O+g*k+.5*r,j=i(1,0,(m-O)/s,(b-k)/o),A=i((m-O)/s,(b-k)/o,(-m-O)/s,(-b-k)/o);0===h&&A>0?A-=2*u:1===h&&A<0&&(A+=2*u);for(var P=Math.ceil(Math.abs(A/u*2)),F=[],M=A/P,I=8/3*Math.sin(M/4)*Math.sin(M/4)/Math.sin(M/2),L=j+M,R=0;R<P;R++)F[R]=e(j,L,g,d,s,o,E,D,I,p,v),p=F[R][4],v=F[R][5],j=L,L+=M;return fabric.arcToSegmentsCache[l]=F,F}function e(t,e,i,r,n,s,o,a,h,c,l){var u=fabric.util.cos(t),f=fabric.util.sin(t),d=fabric.util.cos(e),g=fabric.util.sin(e),p=i*n*d-r*s*g+o,v=r*n*d+i*s*g+a,m=c+h*(-i*n*f-r*s*u),b=l+h*(-r*n*f+i*s*u),y=p+h*(i*n*g+r*s*d),_=v+h*(r*n*g-i*s*d);return[m,b,y,_,p,v]}function i(t,e,i,r){var n=Math.atan2(e,t),s=Math.atan2(r,i);return s>=n?s-n:2*Math.PI-(n-s)}function r(t,e,i,r,s,o,a,h){var c;if(fabric.cachesBoundsOfCurve&&(c=n.call(arguments),fabric.boundsOfCurveCache[c]))return fabric.boundsOfCurveCache[c];var l,u,f,d,g,p,v,m,b=Math.sqrt,y=Math.min,_=Math.max,x=Math.abs,C=[],S=[[],[]];u=6*t-12*i+6*s,l=-3*t+9*i-9*s+3*a,f=3*i-3*t;for(var T=0;T<2;++T)if(T>0&&(u=6*e-12*r+6*o,l=-3*e+9*r-9*o+3*h,f=3*r-3*e),x(l)<1e-12){if(x(u)<1e-12)continue;d=-f/u,0<d&&d<1&&C.push(d)}else v=u*u-4*f*l,v<0||(m=b(v),g=(-u+m)/(2*l),0<g&&g<1&&C.push(g),p=(-u-m)/(2*l),0<p&&p<1&&C.push(p));for(var w,O,k,E=C.length,D=E;E--;)d=C[E],k=1-d,w=k*k*k*t+3*k*k*d*i+3*k*d*d*s+d*d*d*a,S[0][E]=w,O=k*k*k*e+3*k*k*d*r+3*k*d*d*o+d*d*d*h,S[1][E]=O;S[0][D]=t,S[1][D]=e,S[0][D+1]=a,S[1][D+1]=h;var j=[{x:y.apply(null,S[0]),y:y.apply(null,S[1])},{x:_.apply(null,S[0]),y:_.apply(null,S[1])}];return fabric.cachesBoundsOfCurve&&(fabric.boundsOfCurveCache[c]=j),j}var n=Array.prototype.join;fabric.util.drawArc=function(e,i,r,n){for(var s=n[0],o=n[1],a=n[2],h=n[3],c=n[4],l=n[5],u=n[6],f=[[],[],[],[]],d=t(l-i,u-r,s,o,h,c,a),g=0,p=d.length;g<p;g++)f[g][0]=d[g][0]+i,f[g][1]=d[g][1]+r,f[g][2]=d[g][2]+i,f[g][3]=d[g][3]+r,f[g][4]=d[g][4]+i,f[g][5]=d[g][5]+r,e.bezierCurveTo.apply(e,f[g])},fabric.util.getBoundsOfArc=function(e,i,n,s,o,a,h,c,l){for(var u,f=0,d=0,g=[],p=t(c-e,l-i,n,s,a,h,o),v=0,m=p.length;v<m;v++)u=r(f,d,p[v][0],p[v][1],p[v][2],p[v][3],p[v][4],p[v][5]),g.push({x:u[0].x+e,y:u[0].y+i}),g.push({x:u[1].x+e,y:u[1].y+i}),f=p[v][4],d=p[v][5];return g},fabric.util.getBoundsOfCurve=r}(),function(){function t(t,e){for(var i=s.call(arguments,2),r=[],n=0,o=t.length;n<o;n++)r[n]=i.length?t[n][e].apply(t[n],i):t[n][e].call(t[n]);return r}function e(t,e){return n(t,e,function(t,e){return t>=e})}function i(t,e){return n(t,e,function(t,e){return t<e})}function r(t,e){for(var i=t.length;i--;)t[i]=e;return t}function n(t,e,i){if(t&&0!==t.length){var r=t.length-1,n=e?t[r][e]:t[r];if(e)for(;r--;)i(t[r][e],n)&&(n=t[r][e]);else for(;r--;)i(t[r],n)&&(n=t[r]);return n}}var s=Array.prototype.slice;fabric.util.array={fill:r,invoke:t,min:i,max:e}}(),function(){function t(e,i,r){if(r)if(!fabric.isLikelyNode&&i instanceof Element)e=i;else if(i instanceof Array){e=[];for(var n=0,s=i.length;n<s;n++)e[n]=t({},i[n],r)}else if(i&&"object"==typeof i)for(var o in i)i.hasOwnProperty(o)&&(e[o]=t({},i[o],r));else e=i;else for(var o in i)e[o]=i[o];return e}function e(e,i){return t({},e,i)}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 i(t){return t.replace(/&/g,"&").replace(/"/g,""").replace(/'/g,"'").replace(/</g,"<").replace(/>/g,">")}function r(t){var e,i=0,r=[];for(i=0,e;i<t.length;i++)(e=n(t,i))!==!1&&r.push(e);return r}function n(t,e){var i=t.charCodeAt(e);if(isNaN(i))return"";if(i<55296||i>57343)return t.charAt(e);if(55296<=i&&i<=56319){if(t.length<=e+1)throw"High surrogate without following low surrogate";var r=t.charCodeAt(e+1);if(56320>r||r>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 n=t.charCodeAt(e-1);if(55296>n||n>56319)throw"Low surrogate without preceding high surrogate";return!1}fabric.util.string={camelize:t,capitalize:e,escapeXml:i,graphemeSplit:r}}(),function(){function t(){}function e(t){for(var e=null,i=this;i.constructor.superclass;){var n=i.constructor.superclass.prototype[t];if(i[t]!==n){e=n;break}i=i.constructor.superclass.prototype}return e?arguments.length>1?e.apply(this,r.call(arguments,1)):e.call(this):console.log("tried to callSuper "+t+", method not found in prototype chain",this)}function i(){function i(){this.initialize.apply(this,arguments)}var s=null,a=r.call(arguments,0);"function"==typeof a[0]&&(s=a.shift()),i.superclass=s,i.subclasses=[],s&&(t.prototype=s.prototype,i.prototype=new t,s.subclasses.push(i));for(var h=0,c=a.length;h<c;h++)o(i,a[h],s);return i.prototype.initialize||(i.prototype.initialize=n),i.prototype.constructor=i,i.prototype.callSuper=e,i}var r=Array.prototype.slice,n=function(){},s=function(){for(var t 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d.appendPoints(c.points),d.appendPoints(l.points),d.appendPoints(u.points),d.appendPoints(f.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 i(t,e,i){return i<0&&(i+=1),i>1&&(i-=1),i<1/6?t+6*(e-t)*i:i<.5?e:i<2/3?t+(e-t)*(2/3-i)*6:t}var r=t.fabric||(t.fabric={});return r.Color?void r.warn("fabric.Color is already defined."):(r.Color=e,r.Color.prototype={_tryParsingColor:function(t){var i;t in e.colorNameMap&&(t=e.colorNameMap[t]),"transparent"===t&&(i=[255,255,255,0]),i||(i=e.sourceFromHex(t)),i||(i=e.sourceFromRgb(t)),i||(i=e.sourceFromHsl(t)),i||(i=[0,0,0,1]),i&&this.setSource(i)},_rgbToHsl:function(t,e,i){t/=255,e/=255,i/=255;var n,s,o,a=r.util.array.max([t,e,i]),h=r.util.array.min([t,e,i]);if(o=(a+h)/2,a===h)n=s=0;else{var c=a-h;switch(s=o>.5?c/(2-a-h):c/(a+h),a){case t:n=(e-i)/c+(e<i?6:0);break;case e:n=(i-t)/c+2;break;case i:n=(t-e)/c+4}n/=6}return[Math.round(360*n),Math.round(100*s),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,i,r=this.getSource();return t=r[0].toString(16),t=1===t.length?"0"+t:t,e=r[1].toString(16),e=1===e.length?"0"+e:e,i=r[2].toString(16),i=1===i.length?"0"+i:i,t.toUpperCase()+e.toUpperCase()+i.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),i=t[3];return this.setSource([e,e,e,i]),this},toBlackWhite:function(t){var e=this.getSource(),i=(.3*e[0]+.59*e[1]+.11*e[2]).toFixed(0),r=e[3];return t=t||127,i=Number(i)<Number(t)?0:255,this.setSource([i,i,i,r]),this},overlayWith:function(t){t instanceof e||(t=new e(t));var i,r=[],n=this.getAlpha(),s=.5,o=this.getSource(),a=t.getSource();for(i=0;i<3;i++)r.push(Math.round(o[i]*(1-s)+a[i]*s));return r[3]=n,this.setSource(r),this}},r.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,r.Color.reHSLa=/^hsla?\(\s*(\d{1,3})\s*,\s*(\d{1,3}\%)\s*,\s*(\d{1,3}\%)\s*(?:\s*,\s*(\d+(?:\.\d+)?)\s*)?\)$/i,r.Color.reHex=/^#?([0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{4}|[0-9a-f]{3})$/i,r.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:"#7