Function dash

docs/handwritten.js:290–290

(a,t={})

`),e}}class Qe{static open(e,a,t,r){let i;if("string"==typeof a){if(He.isStandardFont(a))return new He(e,a,r);a=Y.readFileSync(a)}if(n.isBuffer(a)?i=L.create(a,t):a instanceof Uint8Array?i=L.create(new n(a),t):a instanceof ArrayBuffer&&(i=L.create(new n(new Uint8Array(a)),t)),null==i)throw new Error("Not a supported font format or standard PDF font.");return new Ze(e,i,r)}}class $e extends D.EventEmitter{constructor(e,a){super(),this.document=e,this.indent=a.indent||0,this.characterSpacing=a.characterSpacing||0,this.wordSpacing=0===a.wordSpacing,this.columns=a.columns||1,this.columnGap=null==a.columnGap?18:a.columnGap,this.lineWidth=(a.width-this.columnGap*(this.columns-1))/this.columns,this.spaceLeft=this.lineWidth,this.startX=this.document.x,this.startY=this.document.y,this.column=1,this.ellipsis=a.ellipsis,this.continuedX=0,this.features=a.features,null==a.height?this.maxY=this.document.page.maxY():(this.height=a.height,this.maxY=this.startY+a.height),this.on("firstLine",e=>{const a=this.continuedX||this.indent;return this.document.x+=a,this.lineWidth-=a,this.once("line",()=>{if(this.document.x-=a,this.lineWidth+=a,e.continued&&!this.continuedX&&(this.continuedX=this.indent),!e.continued)return this.continuedX=0})}),this.on("lastLine",e=>{const{align:a}=e;return"justify"===a&&(e.align="left"),this.lastLine=!0,this.once("line",()=>(this.document.y+=e.paragraphGap||0,e.align=a,this.lastLine=!1))})}wordWidth(e){return this.document.widthOfString(e,this)+this.characterSpacing+this.wordSpacing}eachWord(e,a){let t;const r=new M(e);let n=null;for(const s=Object.create(null);t=r.nextBreak();){var i;let r=e.slice((null==n?void 0:n.position)||0,t.position),l=null==s[r]?s[r]=this.wordWidth(r):s[r];if(l>this.lineWidth+this.continuedX){let e=n;for(const n={};r.length;){var o,c;l>this.spaceLeft?(o=K(this.spaceLeft/(l/r.length)),l=this.wordWidth(r.slice(0,o)),c=l<=this.spaceLeft&&o<r.length):o=r.length;for(let e=l>this.spaceLeft&&0<o;e||c;)e?(l=this.wordWidth(r.slice(0,--o)),e=l>this.spaceLeft&&0<o):(l=this.wordWidth(r.slice(0,++o)),e=l>this.spaceLeft&&0<o,c=l<=this.spaceLeft&&o<r.length);if(0===o&&this.spaceLeft===this.lineWidth&&(o=1),n.required=t.required||o<r.length,i=a(r.slice(0,o),l,n,e),e={required:!1},r=r.slice(o),l=this.wordWidth(r),!1===i)break}}else i=a(r,l,t,n);if(!1===i)break;n=t}}wrap(e,a){null!=a.indent&&(this.indent=a.indent),null!=a.characterSpacing&&(this.characterSpacing=a.characterSpacing),null!=a.wordSpacing&&(this.wordSpacing=a.wordSpacing),null!=a.ellipsis&&(this.ellipsis=a.ellipsis);const t=this.document.y+this.document.currentLineHeight(!0);(this.document.y>this.maxY||t>this.maxY)&&this.nextSection();let r="",n=0,i=0,o=0,{y:c}=this.document;const s=()=>(a.textWidth=n+this.wordSpacing*(i-1),a.wordCount=i,a.lineWidth=this.lineWidth,({y:c}=this.document),this.emit("line",r,a,this),o++);return this.emit("sectionStart",a,this),this.eachWord(e,(e,t,o,c)=>{if((null==c||c.required)&&(this.emit("firstLine",a,this),this.spaceLeft=this.lineWidth),t<=this.spaceLeft&&(r+=e,n+=t,i++),o.required||t>this.spaceLeft){const c=this.document.currentLineHeight(!0);if(null!=this.height&&this.ellipsis&&this.document.y+2*c>this.maxY&&this.column>=this.columns){for(!0===this.ellipsis&&(this.ellipsis="\u2026"),r=r.replace(/\s+$/,""),n=this.wordWidth(r+this.ellipsis);r&&n>this.lineWidth;)r=r.slice(0,-1).replace(/\s+$/,""),n=this.wordWidth(r+this.ellipsis);n<=this.lineWidth&&(r+=this.ellipsis),n=this.wordWidth(r)}if(o.required&&(t>this.spaceLeft&&(s(),r=e,n=t,i=1),this.emit("lastLine",a,this)),s(),this.document.y+c>this.maxY){const e=this.nextSection();if(!e)return i=0,r="",!1}return o.required?(this.spaceLeft=this.lineWidth,r="",n=0,i=0):(this.spaceLeft=this.lineWidth-t,r=e,n=t,i=1)}return this.spaceLeft-=t}),0<i&&(this.emit("lastLine",a,this),s()),this.emit("sectionEnd",a,this),!0===a.continued?(1<o&&(this.continuedX=0),this.continuedX+=a.textWidth||0,this.document.y=c):this.document.x=this.startX}nextSection(e){if(this.emit("sectionEnd",e,this),++this.column>this.columns){if(null!=this.height)return!1;this.document.addPage(),this.column=1,this.startY=this.document.page.margins.top,this.maxY=this.document.page.maxY(),this.document.x=this.startX,this.document._fillColor&&this.document.fillColor(...this.document._fillColor),this.emit("pageBreak",e,this)}else this.document.x+=this.lineWidth+this.columnGap,this.document.y=this.startY,this.emit("columnBreak",e,this);return this.emit("sectionStart",e,this),!0}}const{number:ea}=J;const aa=[65472,65473,65474,65475,65477,65478,65479,65480,65481,65482,65483,65484,65485,65486,65487],ta={1:"DeviceGray",3:"DeviceRGB",4:"DeviceCMYK"};class ra{constructor(e,a){let t;if(this.data=e,this.label=a,65496!==this.data.readUInt16BE(0))throw"SOI not found in JPEG";let r=2;for(;r<this.data.length&&(t=this.data.readUInt16BE(r),r+=2,!aa.includes(t));)r+=this.data.readUInt16BE(r);if(!aa.includes(t))throw"Invalid JPEG.";r+=2,this.bits=this.data[r++],this.height=this.data.readUInt16BE(r),r+=2,this.width=this.data.readUInt16BE(r),r+=2;const n=this.data[r++];this.colorSpace=ta[n],this.obj=null}embed(e){if(!this.obj)return this.obj=e.ref({Type:"XObject",Subtype:"Image",BitsPerComponent:this.bits,Width:this.width,Height:this.height,ColorSpace:this.colorSpace,Filter:"DCTDecode"}),"DeviceCMYK"===this.colorSpace&&(this.obj.data.Decode=[1,0,1,0,1,0,1,0]),this.obj.end(this.data),this.data=null}}class na{constructor(e,a){this.label=a,this.image=new F(e),this.width=this.image.width,this.height=this.image.height,this.imgData=this.image.imgData,this.obj=null}embed(e){let a=!1;if(this.document=e,this.obj)return;const t=this.image.hasAlphaChannel,r=1===this.image.interlaceMethod;if(this.obj=this.document.ref({Type:"XObject",Subtype:"Image",BitsPerComponent:t?8:this.image.bits,Width:this.width,Height:this.height,Filter:"FlateDecode"}),!t){const e=this.document.ref({Predictor:r?1:15,Colors:this.image.colors,BitsPerComponent:this.image.bits,Columns:this.width});this.obj.data.DecodeParms=e,e.end()}if(0===this.image.palette.length)this.obj.data.ColorSpace=this.image.colorSpace;else{const e=this.document.ref();e.end(new n(this.image.palette)),this.obj.data.ColorSpace=["Indexed","DeviceRGB",this.image.palette.length/3-1,e]}if(null!=this.image.transparency.grayscale){const e=this.image.transparency.grayscale;this.obj.data.Mask=[e,e]}else if(this.image.transparency.rgb){const{rgb:e}=this.image.transparency,a=[];for(let t of e)a.push(t,t);this.obj.data.Mask=a}else{if(this.image.transparency.indexed)return a=!0,this.loadIndexedAlphaChannel();if(t)return a=!0,this.splitAlphaChannel()}return r&&!a?this.decodeData():void this.finalize()}finalize(){if(this.alphaChannel){const e=this.document.ref({Type:"XObject",Subtype:"Image",Height:this.height,Width:this.width,BitsPerComponent:8,Filter:"FlateDecode",ColorSpace:"DeviceGray",Decode:[0,1]});e.end(this.alphaChannel),this.obj.data.SMask=e}return this.obj.end(this.imgData),this.image=null,this.imgData=null}splitAlphaChannel(){return this.image.decodePixels(e=>{let t,r;const o=this.image.colors,c=this.width*this.height,s=new n(c*o),l=new n(c);let u=r=t=0;const d=e.length,X=16===this.image.bits?1:0;for(;u<d;){for(let a=0;a<o;a++)s[r++]=e[u++],u+=X;l[t++]=e[u++],u+=X}return this.imgData=I.deflateSync(s),this.alphaChannel=I.deflateSync(l),this.finalize()})}loadIndexedAlphaChannel(){const e=this.image.transparency.indexed;return this.image.decodePixels(a=>{const t=new n(this.width*this.height);let r=0;for(let n=0,i=a.length;n<i;n++)t[r++]=e[a[n]];return this.alphaChannel=I.deflateSync(t),this.finalize()})}decodeData(){this.image.decodePixels(e=>{this.imgData=I.deflateSync(e),this.finalize()})}}class ia{static open(e,a){let t;if(n.isBuffer(e))t=e;else if(e instanceof ArrayBuffer)t=new n(new Uint8Array(e));else{let a;if(a=/^data:.+;base64,(.*)$/.exec(e))t=new n(a[1],"base64");else if(t=Y.readFileSync(e),!t)return}if(255===t[0]&&216===t[1])return new ra(t,a);if(137===t[0]&&"PNG"===t.toString("ascii",1,4))return new na(t,a);throw new Error("Unknown image format.")}}class oa{constructor(e,a,t,r,n={expanded:!1}){this.document=e,this.options=n,this.outlineData={},null!==r&&(this.outlineData.Dest=[r.dictionary,"Fit"]),null!==a&&(this.outlineData.Parent=a),null!==t&&(this.outlineData.Title=new String(t)),this.dictionary=this.document.ref(this.outlineData),this.children=[]}addItem(e,a={expanded:!1}){const t=new oa(this.document,this.dictionary,e,this.document.page,a);return this.children.push(t),t}endOutline(){if(0<this.children.length){this.options.expanded&&(this.outlineData.Count=this.children.length);const e=this.children[0],a=this.children[this.children.length-1];this.outlineData.First=e.dictionary,this.outlineData.Last=a.dictionary;for(let e=0,a=this.children.length;e<a;e++){const a=this.children[e];0<e&&(a.outlineData.Prev=this.children[e-1].dictionary),e<this.children.length-1&&(a.outlineData.Next=this.children[e+1].dictionary),a.endOutline()}}return this.dictionary.end()}}const ca={readOnly:1,required:2,noExport:4,multiline:4096,password:8192,toggleToOffButton:16384,radioButton:32768,pushButton:65536,combo:131072,edit:262144,sort:524288,multiSelect:2097152,noSpell:4194304},sa={left:0,center:1,right:2},la={value:"V",defaultValue:"DV"},ua={zip:"0",zipPlus4:"1",zip4:"1",phone:"2",ssn:"3"},da={number:{nDec:0,sepComma:!1,negStyle:"MinusBlack",currency:"",currencyPrepend:!0},percent:{nDec:0,sepComma:!1}};class Xa extends 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a=this.options.info[e];this.info[e]=a}this._id=fe.generateFileID(this.info),this._security=fe.create(this,e),this._write(`%PDF-${this.version}`),this._write("%\xFF\xFF\xFF\xFF"),!1!==this.options.autoFirstPage&&this.addPage()}addPage(e){null==e&&({options:e}=this),this.options.bufferPages||this.flushPages(),this.page=new ee(this,e),this._pageBuffer.push(this.page);const a=this._root.data.Pages.data;return a.Kids.push(this.page.dictionary),a.Count++,this.x=this.page.margins.left,this.y=this.page.margins.top,this._ctm=[1,0,0,1,0,0],this.transform(1,0,0,-1,0,this.page.height),this.emit("pageAdded"),this}bufferedPageRange(){return{start:this._pageBufferStart,count:this._pageBuffer.length}}switchToPage(e){let a;if(!(a=this._pageBuffer[e-this._pageBufferStart]))throw new Error(`switchToPage(${e}) out of bounds, current buffer covers pages ${this._pageBufferStart} to ${this._pageBufferStart+this._pageBuffer.length-1}`);return this.page=a}flushPages(){const e=this._pageBuffer;this._pageBuffer=[],this._pageBufferStart+=e.length;for(let a of e)a.end()}addNamedDestination(e,...a){0===a.length&&(a=["XYZ",null,null,null]),"XYZ"===a[0]&&null!==a[2]&&(a[2]=this.page.height-a[2]),a.unshift(this.page.dictionary),this._root.data.Names.data.Dests.add(e,a)}addNamedJavaScript(e,a){this._root.data.Names.data.JavaScript||(this._root.data.Names.data.JavaScript=new j);let t={JS:new String(a),S:"JavaScript"};this._root.data.Names.data.JavaScript.add(e,t)}ref(e){const a=new Z(this,this._offsets.length+1,e);return this._offsets.push(null),this._waiting++,a}_read(){}_write(e){return n.isBuffer(e)||(e=new n(e+"\n","binary")),this.push(e),this._offset+=e.length}addContent(e){return this.page.write(e),this}_refEnd(e){if(this._offsets[e.id-1]=e.offset,0==--this._waiting&&this._ended)return this._finalize(),this._ended=!1}write(e,a){const t=new Error(`\
PDFDocument#write is deprecated, and will be removed in a future version of PDFKit. \
Please pipe the document into a Node stream.\
`);return console.warn(t.stack),this.pipe(Y.createWriteStream(e)),this.end(),this.once("end",a)}end(){for(let e in this.flushPages(),this._info=this.ref(),this.info){let a=this.info[e];"string"==typeof a&&(a=new String(a));let t=this.ref(a);t.end(),this._info.data[e]=t}for(let e in this._info.end(),this._fontFamilies){const a=this._fontFamilies[e];a.finalize()}return this.endOutline(),this._root.end(),this._root.data.Pages.end(),this._root.data.Names.end(),this.endAcroForm(),this._security&&this._security.end(),0===this._waiting?this._finalize():this._ended=!0}_finalize(){const e=this._offset;this._write("xref"),this._write(`0 ${this._offsets.length+1}`),this._write("0000000000 65535 f ");for(let e of this._offsets)e=`0000000000${e}`.slice(-10),this._write(e+" 00000 n ");const a={Size:this._offsets.length+1,Root:this._root,Info:this._info,ID:[this._id,this._id]};return this._security&&(a.Encrypt=this._security.dictionary),this._write("trailer"),this._write(J.convert(a)),this._write("startxref"),this._write(`${e}`),this._write("%%EOF"),this.push(null)}toString(){return"[object PDFDocument]"}}const ma=e=>{Object.assign(Xa.prototype,e)};ma({initColor(){return this._opacityRegistry={},this._opacityCount=0,this._gradCount=0},_normalizeColor(e){if(e instanceof Ce)return e;if("string"==typeof e)if("#"===e.charAt(0)){4===e.length&&(e=e.replace(/#([0-9A-F])([0-9A-F])([0-9A-F])/i,"#$1$1$2$2$3$3"));const a=parseInt(e.slice(1),16);e=[a>>16,255&a>>8,255&a]}else _e[e]&&(e=_e[e]);return Array.isArray(e)?(3===e.length?e=e.map(e=>e/255):4===e.length&&(e=e.map(e=>e/100)),e):null},_setColor(e,a){if(e=this._normalizeColor(e),!e)return!1;const t=a?"SCN":"scn";if(e instanceof Ce)this._setColorSpace("Pattern",a),e.apply(t);else{const r=4===e.length?"DeviceCMYK":"DeviceRGB";this._setColorSpace(r,a),e=e.join(" "),this.addContent(`${e} 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this._ctm=[1,0,0,1,0,0],this._ctmStack=[]},save(){return this._ctmStack.push(this._ctm.slice()),this.addContent("q")},restore(){return this._ctm=this._ctmStack.pop()||[1,0,0,1,0,0],this.addContent("Q")},closePath(){return this.addContent("h")},lineWidth(e){return this.addContent(`${Me(e)} w`)},_CAP_STYLES:{BUTT:0,ROUND:1,SQUARE:2},lineCap(e){return"string"==typeof e&&(e=this._CAP_STYLES[e.toUpperCase()]),this.addContent(`${e} J`)},_JOIN_STYLES:{MITER:0,ROUND:1,BEVEL:2},lineJoin(e){return"string"==typeof e&&(e=this._JOIN_STYLES[e.toUpperCase()]),this.addContent(`${e} j`)},miterLimit(e){return this.addContent(`${Me(e)} M`)},dash(a,t={}){const r=a;Array.isArray(a)||(a=[a,t.space||a]);const n=a.every(a=>e(a)&&0<a);if(!n)throw new Error(`dash(${JSON.stringify(r)}, ${JSON.stringify(t)}) invalid, lengths must be numeric and greater than zero`);return a=a.map(Me).join(" "),this.addContent(`[${a}] ${Me(t.phase||0)} d`)},undash(){return this.addContent("[] 0 d")},moveTo(e,a){return this.addContent(`${Me(e)} ${Me(a)} m`)},lineTo(e,a){return this.addContent(`${Me(e)} ${Me(a)} l`)},bezierCurveTo(e,a,t,r,n,i){return this.addContent(`${Me(e)} ${Me(a)} ${Me(t)} ${Me(r)} ${Me(n)} ${Me(i)} c`)},quadraticCurveTo(e,a,t,r){return this.addContent(`${Me(e)} ${Me(a)} ${Me(t)} ${Me(r)} v`)},rect(e,a,t,r){return this.addContent(`${Me(e)} ${Me(a)} ${Me(t)} ${Me(r)} re`)},roundedRect(e,a,t,n,i){null==i&&(i=0),i=_(i,.5*t,.5*n);const o=i*(1-Fe);return this.moveTo(e+i,a),this.lineTo(e+t-i,a),this.bezierCurveTo(e+t-o,a,e+t,a+o,e+t,a+i),this.lineTo(e+t,a+n-i),this.bezierCurveTo(e+t,a+n-o,e+t-o,a+n,e+t-i,a+n),this.lineTo(e+i,a+n),this.bezierCurveTo(e+o,a+n,e,a+n-o,e,a+n-i),this.lineTo(e,a+i),this.bezierCurveTo(e,a+o,e+o,a,e+i,a),this.closePath()},ellipse(e,a,t,r){null==r&&(r=t),e-=t,a-=r;const n=t*Fe,i=r*Fe,o=e+2*t,c=a+2*r,s=e+t,l=a+r;return 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b=(h.red+h.green+h.blue)/3;8===i.bitDepth?(m[K]=b,c&&(m[K+1]=h.alpha)):(m.writeUInt16BE(b,K),c&&m.writeUInt16BE(h.alpha,K+2));break;default:throw new Error("unrecognised color Type "+i.colorType);}P+=d,K+=X}return m}}).call(this,e("buffer").Buffer)},{"./constants":379,buffer:119}],378:[function(e,a){(function(t,r){'use strict';var n=e("util"),i=e("stream"),o=a.exports=function(){i.call(this),this._buffers=[],this._buffered=0,this._reads=[],this._paused=!1,this._encoding="utf8",this.writable=!0};n.inherits(o,i),o.prototype.read=function(e,a){this._reads.push({length:X(e),allowLess:0>e,func:a}),t.nextTick(function(){this._process(),this._paused&&0<this._reads.length&&(this._paused=!1,this.emit("drain"))}.bind(this))},o.prototype.write=function(e,a){if(!this.writable)return this.emit("error",new Error("Stream not writable")),!1;var t;return t=r.isBuffer(e)?e:new 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r(e.length);a<e.length;){var i=this._buffers[t++],o=_(i.length,e.length-a);i.copy(n,a,0,o),a+=o,o!==i.length&&(this._buffers[--t]=i.slice(o))}0<t&&this._buffers.splice(0,t),this._buffered-=e.length,e.func.call(this,n)},o.prototype._process=function(){try{for(;0<this._buffered&&this._reads&&0<this._reads.length;){var e=this._reads[0];if(e.allowLess)this._processReadAllowingLess(e);else if(this._buffered>=e.length)this._processRead(e);else break}this._buffers&&!this.writable&&this._end()}catch(e){this.emit("error",e)}}}).call(this,e("_process"),e("buffer").Buffer)},{_process:116,buffer:119,stream:438,util:477}],379:[function(e,a){'use 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o=0;o<t;o++){var c=o>=i?e[a+o-i]:0,s=e[a+o]-c;r[n+o]=s}},2:function(e,a,t,r,n){for(var i=0;i<t;i++){var o=0<a?e[a+i-t]:0,c=e[a+i]-o;r[n+i]=c}},3:function(e,a,t,r,n,i){for(var o=0;o<t;o++){var c=o>=i?e[a+o-i]:0,s=0<a?e[a+o-t]:0,l=e[a+o]-(c+s>>1);r[n+o]=l}},4:function(e,a,t,n,i,o){for(var c=0;c<t;c++){var s=c>=o?e[a+c-o]:0,l=0<a?e[a+c-t]:0,u=0<a&&c>=o?e[a+c-(t+o)]:0,d=e[a+c]-r(s,l,u);n[i+c]=d}}},o={0:function(e,a,t){for(var r=0,n=a;n<a+t;n++)r+=X(e[n]);return r},1:function(e,a,t,r){for(var n=0,i=0;i<t;i++){var o=i>=r?e[a+i-r]:0,c=e[a+i]-o;n+=X(c)}return n},2:function(e,a,t){for(var r=0,n=a;n<a+t;n++){var i=0<a?e[n-t]:0,o=e[n]-i;r+=X(o)}return r},3:function(e,a,t,r){for(var n=0,i=0;i<t;i++){var o=i>=r?e[a+i-r]:0,c=0<a?e[a+i-t]:0,s=e[a+i]-(o+c>>1);n+=X(s)}return n},4:function(e,a,t,n){for(var i=0,o=0;o<t;o++){var c=o>=n?e[a+o-n]:0,s=0<a?e[a+o-t]:0,l=0<a&&o>=n?e[a+o-(t+n)]:0,u=e[a+o]-r(c,s,l);i+=X(u)}return i}};a.exports=function(e,a,r,c,s){var l;if(!("filterType"in c)||-1===c.filterType)l=[0,1,2,3,4];else if("number"==typeof c.filterType)l=[c.filterType];else throw new Error("unrecognised filter types");16===c.bitDepth&&(s*=2);for(var u=a*s,d=0,X=0,m=new t((u+1)*r),P=l[0],K=0;K<r;K++){if(1<l.length)for(var g=1/0,p=0,f;p<l.length;p++)f=o[l[p]](e,X,u,s),f<g&&(P=l[p],g=f);m[d]=P,d++,n[P](e,X,u,m,d,s),d+=u,X+=u}return m}}).call(this,e("buffer").Buffer)},{"./paeth-predictor":390,buffer:119}],382:[function(e,a){(function(t){'use strict';var r=e("util"),n=e("./chunkstream"),i=e("./filter-parse"),o=a.exports=function(e){n.call(this);var a=[],r=this;this._filter=new i(e,{read:this.read.bind(this),write:function(e){a.push(e)},complete:function(){r.emit("complete",t.concat(a))}}),this._filter.start()};r.inherits(o,n)}).call(this,e("buffer").Buffer)},{"./chunkstream":378,"./filter-parse":384,buffer:119,util:477}],383:[function(e,a,t){(function(a){'use strict';var r=e("./sync-reader"),n=e("./filter-parse");t.process=function(e,t){var i=[],o=new r(e),c=new n(t,{read:o.read.bind(o),write:function(e){i.push(e)},complete:function(){}});return c.start(),o.process(),a.concat(i)}}).call(this,e("buffer").Buffer)},{"./filter-parse":384,"./sync-reader":397,buffer:119}],384:[function(e,a){(function(t){'use strict';function r(e,a,t){var r=e*a;return 8!==t&&(r=K(r/(8/t))),r}var n=e("./interlace"),i=e("./paeth-predictor"),o=a.exports=function(e,a){var t=e.width,o=e.height,c=e.interlace,s=e.bpp,l=e.depth;if(this.read=a.read,this.write=a.write,this.complete=a.complete,this._imageIndex=0,this._images=[],c)for(var u=n.getImagePasses(t,o),d=0;d<u.length;d++)this._images.push({byteWidth:r(u[d].width,s,l),height:u[d].height,lineIndex:0});else this._images.push({byteWidth:r(t,s,l),height:o,lineIndex:0});this._xComparison=8===l?s:16===l?2*s:1};o.prototype.start=function(){this.read(this._images[this._imageIndex].byteWidth+1,this._reverseFilterLine.bind(this))},o.prototype._unFilterType1=function(e,a,t){for(var r=this._xComparison,n=0;n<t;n++){var i=e[1+n],o=n>r-1?a[n-r]:0;a[n]=i+o}},o.prototype._unFilterType2=function(e,a,t){for(var r=this._lastLine,n=0;n<t;n++){var i=e[1+n],o=r?r[n]:0;a[n]=i+o}},o.prototype._unFilterType3=function(e,a,t){for(var r=this._xComparison,n=this._lastLine,i=0;i<t;i++){var o=e[1+i],c=n?n[i]:0,s=i>r-1?a[i-r]:0,l=A((s+c)/2);a[i]=o+l}},o.prototype._unFilterType4=function(e,a,t){for(var r=this._xComparison,n=r-1,o=this._lastLine,c=0;c<t;c++){var s=e[1+c],l=o?o[c]:0,u=c>n?a[c-r]:0,d=c>n&&o?o[c-r]:0,X=i(u,l,d);a[c]=s+X}},o.prototype._reverseFilterLine=function(e){var a=e[0],r=this._images[this._imageIndex],n=r.byteWidth,i;if(0===a)i=e.slice(1,n+1);else switch(i=new t(n),a){case 1:this._unFilterType1(e,i,n);break;case 2:this._unFilterType2(e,i,n);break;case 3:this._unFilterType3(e,i,n);break;case 4:this._unFilterType4(e,i,n);break;default:throw new Error("Unrecognised filter type - "+a);}this.write(i),r.lineIndex++,r.lineIndex>=r.height?(this._lastLine=null,this._imageIndex++,r=this._images[this._imageIndex]):this._lastLine=i,r?this.read(r.byteWidth+1,this._reverseFilterLine.bind(this)):(this._lastLine=null,this.complete())}}).call(this,e("buffer").Buffer)},{"./interlace":386,"./paeth-predictor":390,buffer:119}],385:[function(e,a){(function(e){'use strict';function t(e,a,t,r,n){for(var o=0,c=0;c<r;c++)for(var s=0,l;s<t;s++){if(l=n[e[o]],!l)throw new Error("index "+e[o]+" not in palette");for(var u=0;4>u;u++)a[o+u]=l[u];o+=4}}function r(e,a,t,r,n){for(var o=0,c=0;c<r;c++)for(var s=0,l;s<t;s++){if(l=!1,1===n.length?n[0]===e[o]&&(l=!0):n[0]===e[o]&&n[1]===e[o+1]&&n[2]===e[o+2]&&(l=!0),l)for(var u=0;4>u;u++)a[o+u]=0;o+=4}}function n(e,a,t,r,n){for(var o=v(2,n)-1,c=0,s=0;s<r;s++)for(var l=0;l<t;l++){for(var u=0;4>u;u++)a[c+u]=A(e[c+u]*255/o+.5);c+=4}}a.exports=function(a,i){var o=i.depth,c=i.width,s=i.height,l=i.colorType,u=i.transColor,d=i.palette,X=a;return 3===l?t(a,X,c,s,d):(u&&r(a,X,c,s,u),8!==o&&(16===o&&(X=new e(4*(c*s))),n(a,X,c,s,o))),X}}).call(this,e("buffer").Buffer)},{buffer:119}],386:[function(e,a,t){'use strict';var r=[{x:[0],y:[0]},{x:[4],y:[0]},{x:[0,4],y:[4]},{x:[2,6],y:[0,4]},{x:[0,2,4,6],y:[2,6]},{x:[1,3,5,7],y:[0,2,4,6]},{x:[0,1,2,3,4,5,6,7],y:[1,3,5,7]}];t.getImagePasses=function(e,a){for(var t=[],n=e%8,o=a%8,c=0;c<r.length;c++){for(var s=r[c],l=(e-n)/8*s.x.length,u=(a-o)/8*s.y.length,d=0;d<s.x.length&&s.x[d]<n;d++)l++;for(d=0;d<s.y.length&&s.y[d]<o;d++)u++;0<l&&0<u&&t.push({width:l,height:u,index:c})}return t},t.getInterlaceIterator=function(e){return function(a,t,n){var i=a%r[n].x.length,o=8*((a-i)/r[n].x.length)+r[n].x[i],c=t%r[n].y.length,s=8*((t-c)/r[n].y.length)+r[n].y[c];return 4*o+4*(s*e)}}},{}],387:[function(e,a){(function(t){'use strict';var r=e("util"),n=e("stream"),i=e("./constants"),o=e("./packer"),c=a.exports=function(e){n.call(this);this._packer=new o(e||{}),this._deflate=this._packer.createDeflate(),this.readable=!0};r.inherits(c,n),c.prototype.pack=function(e,a,r,n){this.emit("data",new t(i.PNG_SIGNATURE)),this.emit("data",this._packer.packIHDR(a,r)),n&&this.emit("data",this._packer.packGAMA(n));var o=this._packer.filterData(e,a,r);this._deflate.on("error",this.emit.bind(this,"error")),this._deflate.on("data",function(e){this.emit("data",this._packer.packIDAT(e))}.bind(this)),this._deflate.on("end",function(){this.emit("data",this._packer.packIEND()),this.emit("end")}.bind(this)),this._deflate.end(o)}}).call(this,e("buffer").Buffer)},{"./constants":379,"./packer":389,buffer:119,stream:438,util:477}],388:[function(e,a){(function(t){'use strict';var r=!0,n=e("zlib");n.deflateSync||(r=!1);var i=e("./constants"),o=e("./packer");a.exports=function(e,a){if(!r)throw new Error("To use the sync capability of this library in old node versions, please pin pngjs to v2.3.0");var c=new o(a||{}),s=[];s.push(new t(i.PNG_SIGNATURE)),s.push(c.packIHDR(e.width,e.height)),e.gamma&&s.push(c.packGAMA(e.gamma));var l=c.filterData(e.data,e.width,e.height),u=n.deflateSync(l,c.getDeflateOptions());if(l=null,!u||!u.length)throw new Error("bad png - invalid compressed data response");return s.push(c.packIDAT(u)),s.push(c.packIEND()),t.concat(s)}}).call(this,e("buffer").Buffer)},{"./constants":379,"./packer":389,buffer:119,zlib:113}],389:[function(e,a){(function(t){'use strict';var r=e("./constants"),n=e("./crc"),i=e("./bitpacker"),o=e("./filter-pack"),c=e("zlib"),s=a.exports=function(e){if(this._options=e,e.deflateChunkSize=e.deflateChunkSize||32768,e.deflateLevel=null==e.deflateLevel?9:e.deflateLevel,e.deflateStrategy=null==e.deflateStrategy?3:e.deflateStrategy,e.inputHasAlpha=null==e.inputHasAlpha||e.inputHasAlpha,e.deflateFactory=e.deflateFactory||c.createDeflate,e.bitDepth=e.bitDepth||8,e.colorType="number"==typeof e.colorType?e.colorType:r.COLORTYPE_COLOR_ALPHA,e.inputColorType="number"==typeof e.inputColorType?e.inputColorType:r.COLORTYPE_COLOR_ALPHA,-1===[r.COLORTYPE_GRAYSCALE,r.COLORTYPE_COLOR,r.COLORTYPE_COLOR_ALPHA,r.COLORTYPE_ALPHA].indexOf(e.colorType))throw new Error("option color type:"+e.colorType+" is not supported at present");if(-1===[r.COLORTYPE_GRAYSCALE,r.COLORTYPE_COLOR,r.COLORTYPE_COLOR_ALPHA,r.COLORTYPE_ALPHA].indexOf(e.inputColorType))throw new Error("option input color type:"+e.inputColorType+" is not supported at present");if(8!==e.bitDepth&&16!==e.bitDepth)throw new Error("option bit depth:"+e.bitDepth+" is not supported at present")};s.prototype.getDeflateOptions=function(){return{chunkSize:this._options.deflateChunkSize,level:this._options.deflateLevel,strategy:this._options.deflateStrategy}},s.prototype.createDeflate=function(){return this._options.deflateFactory(this.getDeflateOptions())},s.prototype.filterData=function(e,a,t){var n=i(e,a,t,this._options),c=r.COLORTYPE_TO_BPP_MAP[this._options.colorType],s=o(n,a,t,this._options,c);return s},s.prototype._packChunk=function(e,a){var r=a?a.length:0,i=new t(r+12);return i.writeUInt32BE(r,0),i.writeUInt32BE(e,4),a&&a.copy(i,8),i.writeInt32BE(n.crc32(i.slice(4,i.length-4)),i.length-4),i},s.prototype.packGAMA=function(e){var a=new t(4);return a.writeUInt32BE(A(e*r.GAMMA_DIVISION),0),this._packChunk(r.TYPE_gAMA,a)},s.prototype.packIHDR=function(e,a){var n=new t(13);return n.writeUInt32BE(e,0),n.writeUInt32BE(a,4),n[8]=this._options.bitDepth,n[9]=this._options.colorType,n[10]=0,n[11]=0,n[12]=0,this._packChunk(r.TYPE_IHDR,n)},s.prototype.packIDAT=function(e){return this._packChunk(r.TYPE_IDAT,e)},s.prototype.packIEND=function(){return this._packChunk(r.TYPE_IEND,null)}}).call(this,e("buffer").Buffer)},{"./bitpacker":377,"./constants":379,"./crc":380,"./filter-pack":381,buffer:119,zlib:113}],390:[function(e,a){'use strict';a.exports=function(e,a,t){var r=e+a-t,n=X(r-e),i=X(r-a),o=X(r-t);return n<=i&&n<=o?e:i<=o?a:t}},{}],391:[function(e,a){'use strict';var t=e("util"),r=e("zlib"),n=e("./chunkstream"),i=e("./filter-parse-async"),o=e("./parser"),c=e("./bitmapper"),s=e("./format-normaliser"),l=a.exports=function(e){n.call(this),this._parser=new o(e,{read:this.read.bind(this),error:this._handleError.bind(this),metadata:this._handleMetaData.bind(this),gamma:this.emit.bind(this,"gamma"),palette:this._handlePalette.bind(this),transColor:this._handleTransColor.bind(this),finished:this._finished.bind(this),inflateData:this._inflateData.bind(this),simpleTransparency:this._simpleTransparency.bind(this),headersFinished:this._headersFinished.bind(this)}),this._options=e,this.writable=!0,this._parser.start()};t.inherits(l,n),l.prototype._handleError=function(e){this.emit("error",e),this.writable=!1,this.destroy(),this._inflate&&this._inflate.destroy&&this._inflate.destroy(),this._filter&&(this._filter.destroy(),this._filter.on("error",function(){})),this.errord=!0},l.prototype._inflateData=function(e){if(!this._inflate)if(this._bitmapInfo.interlace)this._inflate=r.createInflate(),this._inflate.on("error",this.emit.bind(this,"error")),this._filter.on("complete",this._complete.bind(this)),this._inflate.pipe(this._filter);else{var a=(this._bitmapInfo.width*this._bitmapInfo.bpp*this._bitmapInfo.depth+7>>3)+1,t=a*this._bitmapInfo.height,n=B(t,r.Z_MIN_CHUNK);this._inflate=r.createInflate({chunkSize:n});var i=t,o=this.emit.bind(this,"error");this._inflate.on("error",function(e){i&&o(e)}),this._filter.on("complete",this._complete.bind(this));var c=this._filter.write.bind(this._filter);this._inflate.on("data",function(e){i&&(e.length>i&&(e=e.slice(0,i)),i-=e.length,c(e))}),this._inflate.on("end",this._filter.end.bind(this._filter))}this._inflate.write(e)},l.prototype._handleMetaData=function(e){this._metaData=e,this._bitmapInfo=Object.create(e),this._filter=new i(this._bitmapInfo)},l.prototype._handleTransColor=function(e){this._bitmapInfo.transColor=e},l.prototype._handlePalette=function(e){this._bitmapInfo.palette=e},l.prototype._simpleTransparency=function(){this._metaData.alpha=!0},l.prototype._headersFinished=function(){this.emit("metadata",this._metaData)},l.prototype._finished=function(){this.errord||(this._inflate?this._inflate.end():this.emit("error","No Inflate block"),this.destroySoon())},l.prototype._complete=function(e){if(!this.errord){try{var a=c.dataToBitMap(e,this._bitmapInfo),t=s(a,this._bitmapInfo);a=null}catch(e){return void this._handleError(e)}this.emit("parsed",t)}}},{"./bitmapper":376,"./chunkstream":378,"./filter-parse-async":382,"./format-normaliser":385,"./parser":393,util:477,zlib:113}],392:[function(e,a){(function(t){'use strict';var r=!0,n=e("zlib"),i=e("./sync-inflate");n.deflateSync||(r=!1);var o=e("./sync-reader"),c=e("./filter-parse-sync"),s=e("./parser"),l=e("./bitmapper"),u=e("./format-normaliser");a.exports=function(e,a){function d(e){h.transColor=e}function X(e){h.palette=e}function m(){h.alpha=!0}function P(e){K.push(e)}if(!r)throw new Error("To use the sync capability of this library in old node versions, please pin pngjs to v2.3.0");var K=[],g=new o(e),p=new s(a,{read:g.read.bind(g),error:function(e){f=e},metadata:function(e){h=e},gamma:function(e){y=e},palette:X,transColor:d,inflateData:P,simpleTransparency:m}),f,h,y;if(p.start(),g.process(),f)throw f;var b=t.concat(K);K.length=0;var A;if(h.interlace)A=n.inflateSync(b);else{var v=(h.width*h.bpp*h.depth+7>>3)+1,C=v*h.height;A=i(b,{chunkSize:C,maxLength:C})}if(b=null,!A||!A.length)throw new Error("bad png - invalid inflate data response");var B=c.process(A,h);b=null;var x=l.dataToBitMap(B,h);B=null;var _=u(x,h);return h.data=_,h.gamma=y||0,h}}).call(this,e("buffer").Buffer)},{"./bitmapper":376,"./filter-parse-sync":383,"./format-normaliser":385,"./parser":393,"./sync-inflate":396,"./sync-reader":397,buffer:119,zlib:113}],393:[function(e,a){(function(t){'use strict';var r=e("./constants"),n=e("./crc"),i=a.exports=function(e,a){this._options=e,e.checkCRC=!1!==e.checkCRC,this._hasIHDR=!1,this._hasIEND=!1,this._emittedHeadersFinished=!1,this._palette=[],this._colorType=0,this._chunks={},this._chunks[r.TYPE_IHDR]=this._handleIHDR.bind(this),this._chunks[r.TYPE_IEND]=this._handleIEND.bind(this),this._chunks[r.TYPE_IDAT]=this._handleIDAT.bind(this),this._chunks[r.TYPE_PLTE]=this._handlePLTE.bind(this),this._chunks[r.TYPE_tRNS]=this._handleTRNS.bind(this),this._chunks[r.TYPE_gAMA]=this._handleGAMA.bind(this),this.read=a.read,this.error=a.error,this.metadata=a.metadata,this.gamma=a.gamma,this.transColor=a.transColor,this.palette=a.palette,this.parsed=a.parsed,this.inflateData=a.inflateData,this.finished=a.finished,this.simpleTransparency=a.simpleTransparency,this.headersFinished=a.headersFinished||function(){}};i.prototype.start=function(){this.read(r.PNG_SIGNATURE.length,this._parseSignature.bind(this))},i.prototype._parseSignature=function(e){for(var a=r.PNG_SIGNATURE,t=0;t<a.length;t++)if(e[t]!==a[t])return void this.error(new Error("Invalid file signature"));this.read(8,this._parseChunkBegin.bind(this))},i.prototype._parseChunkBegin=function(e){for(var a=e.readUInt32BE(0),o=e.readUInt32BE(4),c="",s=4;8>s;s++)c+=m(e[s]);var l=!!(32&e[4]);return this._hasIHDR||o===r.TYPE_IHDR?(this._crc=new n,this._crc.write(new t(c)),this._chunks[o]?this._chunks[o](a):l?void this.read(a+4,this._skipChunk.bind(this)):void this.error(new Error("Unsupported critical chunk type "+c))):void this.error(new Error("Expected IHDR on beggining"))},i.prototype._skipChunk=function(){this.read(8,this._parseChunkBegin.bind(this))},i.prototype._handleChunkEnd=function(){this.read(4,this._parseChunkEnd.bind(this))},i.prototype._parseChunkEnd=function(e){var a=e.readInt32BE(0),t=this._crc.crc32();return this._options.checkCRC&&t!==a?void this.error(new Error("Crc error - "+a+" - "+t)):void(!this._hasIEND&&this.read(8,this._parseChunkBegin.bind(this)))},i.prototype._handleIHDR=function(e){this.read(e,this._parseIHDR.bind(this))},i.prototype._parseIHDR=function(e){this._crc.write(e);var a=e.readUInt32BE(0),t=e.readUInt32BE(4),n=e[8],i=e[9],o=e[10],c=e[11],s=e[12];if(8!==n&&4!==n&&2!==n&&1!==n&&16!==n)return void this.error(new Error("Unsupported bit depth "+n));if(!(i in r.COLORTYPE_TO_BPP_MAP))return void this.error(new Error("Unsupported color type"));if(0!==o)return void this.error(new Error("Unsupported compression method"));if(0!==c)return void this.error(new Error("Unsupported filter method"));if(0!==s&&1!==s)return void this.error(new Error("Unsupported interlace method"));this._colorType=i;var 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