lightweight-charts/dist/lightweight-charts.standalone.production.js

Performant financial charts built with HTML5 canvas

/*!
 * @license
 * TradingView Lightweight Charts™ v4.0.1
 * Copyright (c) 2023 TradingView, Inc.
 * Licensed under Apache License 2.0 https://www.apache.org/licenses/LICENSE-2.0
 */
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_=o+this.Gs-1,u=Math.round(Math.min(n.re,n.he)*r),c=Math.round(Math.max(n.re,n.he)*r);if(null!==a&&(o=Math.max(a+1,o),o=Math.min(o,_)),this.It.Ks*e>2*l)N(s,o,u,_-o+1,c-u+1,l);else{const t=_-o+1;s.fillRect(o,u,t,c-u+1)}a=_}}Ce(t,i,n){if(null===this.It)return;const{context:s,horizontalPixelRatio:e,verticalPixelRatio:r}=t;let h="";const l=this.ke(e);for(let t=n.from;t<n.to;t++){const n=i[t];let a=Math.round(Math.min(n.re,n.he)*r),o=Math.round(Math.max(n.re,n.he)*r),_=Math.round(n.st*e)-Math.floor(.5*this.Gs),u=_+this.Gs-1;if(n.ie!==h){const t=n.ie;s.fillStyle=t,h=t}this.It.ui&&(_+=l,a+=l,u-=l,o-=l),a>o||s.fillRect(_,a,u-_+1,o-a+1)}}}class zt extends Ct{constructor(){super(...arguments),this.Os=new Lt}qs(t,i,n){return Object.assign(Object.assign({},this.ae(t,i,n)),n.Es(t))}Ws(){const t=this.Ts.F();this.Os.tt({An:this.ks,Ks:this.Ps.yt().Ks(),Se:t.wickVisible,ui:t.borderVisible,it:this.Cs})}}class It extends L{constructor(){super(...arguments),this.It=null,this.Re=[]}tt(t){this.It=t,this.Re=[]}Z({context:t,horizontalPixelRatio:i,verticalPixelRatio:n}){if(null===this.It||0===this.It.nt.length||null===this.It.it)return;this.Re.length||this.De(i);const s=Math.max(1,Math.floor(n)),e=Math.round(this.It.Oe*n)-Math.floor(s/2),r=e+s;for(let i=this.It.it.from;i<this.It.it.to;i++){const h=this.It.nt[i],l=this.Re[i-this.It.it.from],a=Math.round(h.et*n);let o,_;t.fillStyle=h.ie,a<=e?(o=a,_=r):(o=e,_=a-Math.floor(s/2)+s),t.fillRect(l.Ms,o,l.ci-l.Ms+1,_-o)}}De(t){if(null===this.It||0===this.It.nt.length||null===this.It.it)return void(this.Re=[]);const i=Math.ceil(this.It.Ks*t)<=1?0:Math.max(1,Math.floor(t)),n=Math.round(this.It.Ks*t)-i;this.Re=new Array(this.It.it.to-this.It.it.from);for(let i=this.It.it.from;i<this.It.it.to;i++){const s=this.It.nt[i],e=Math.round(s.st*t);let r,h;if(n%2){const t=(n-1)/2;r=e-t,h=e+t}else{const t=n/2;r=e-t,h=e+t-1}this.Re[i-this.It.it.from]={Ms:r,ci:h,Be:e,Ee:s.st*t,_t:s._t}}for(let t=this.It.it.from+1;t<this.It.it.to;t++){const n=this.Re[t-this.It.it.from],s=this.Re[t-this.It.it.from-1];n._t===s._t+1&&(n.Ms-s.ci!==i+1&&(s.Be>s.Ee?s.ci=n.Ms-i-1:n.Ms=s.ci+i+1))}let s=Math.ceil(this.It.Ks*t);for(let t=this.It.it.from;t<this.It.it.to;t++){const i=this.Re[t-this.It.it.from];i.ci<i.Ms&&(i.ci=i.Ms);const n=i.ci-i.Ms+1;s=Math.min(n,s)}if(i>0&&s<4)for(let t=this.It.it.from;t<this.It.it.to;t++){const i=this.Re[t-this.It.it.from];i.ci-i.Ms+1>s&&(i.Be>i.Ee?i.ci-=1:i.Ms+=1)}}}class Nt extends xt{constructor(){super(...arguments),this.Os=new It}qs(t,i,n){return Object.assign(Object.assign({},this.Hs(t,i)),n.Es(t))}Ws(){const t={nt:this.ks,Ks:this.Ps.yt().Ks(),it:this.Cs,Oe:this.Ts.Ot().Dt(this.Ts.F().base,h(this.Ts.Tt()).Bt)};this.Os.tt(t)}}class Vt extends xt{constructor(){super(...arguments),this.Os=new vt}qs(t,i,n){return Object.assign(Object.assign({},this.Hs(t,i)),n.Es(t))}Ws(){const t=this.Ts.F(),i={nt:this.ks,Ft:t.lineStyle,cs:t.lineType,rt:t.lineWidth,it:this.Cs,us:this.Ps.yt().Ks()};this.Os.tt(i)}}const Ft=/[2-9]/g;class Wt{constructor(t=50){this.Ae=0,this.Le=1,this.ze=1,this.Ie={},this.Ne=new Map,this.Ve=t}Fe(){this.Ae=0,this.Ne.clear(),this.Le=1,this.ze=1,this.Ie={}}Si(t,i,n){return this.We(t,i,n).width}Mi(t,i,n){const s=this.We(t,i,n);return((s.actualBoundingBoxAscent||0)-(s.actualBoundingBoxDescent||0))/2}We(t,i,n){const s=n||Ft,e=String(i).replace(s,"0");if(this.Ne.has(e))return r(this.Ne.get(e)).je;if(this.Ae===this.Ve){const t=this.Ie[this.ze];delete this.Ie[this.ze],this.Ne.delete(t),this.ze++,this.Ae--}t.save(),t.textBaseline="middle";const h=t.measureText(e);return t.restore(),0===h.width&&i.length||(this.Ne.set(e,{je:h,$e:this.Le}),this.Ie[this.Le]=e,this.Ae++,this.Le++),h}}class jt{constructor(t){this.He=null,this.S=null,this.Ue="right",this.qe=t}Ye(t,i,n){this.He=t,this.S=i,this.Ue=n}X(t){null!==this.S&&null!==this.He&&this.He.X(t,this.S,this.qe,this.Ue)}}class $t{constructor(t,i,n){this.Xe=t,this.qe=new Wt(50),this.Ze=i,this.V=n,this.W=-1,this.jt=new jt(this.qe)}Mt(){const t=this.V.Ke(this.Ze);if(null===t)return null;const i=t.Ge(this.Ze)?t.Je():this.Ze.Ot();if(null===i)return null;const n=t.Qe(i);if("overlay"===n)return null;const s=this.V.tr();return s.T!==this.W&&(this.W=s.T,this.qe.Fe()),this.jt.Ye(this.Xe.Li(),s,n),this.jt}}class Ht extends L{constructor(){super(...arguments),this.It=null}tt(t){this.It=t}ir(t,i){var n;if(!(null===(n=this.It)||void 0===n?void 0:n.Ct))return null;const{et:s,rt:e,nr:r}=this.It;return i>=s-e-7&&i<=s+e+7?{sr:this.It,nr:r}:null}Z({context:t,bitmapSize:i,horizontalPixelRatio:e,verticalPixelRatio:r}){if(null===this.It)return;if(!1===this.It.Ct)return;const 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e=Math.max(1,Math.floor(i)),r=e%2/2,h=Math.round(s.Ee.x*i)+r,l=s.Ee.y*n;t.fillStyle=s._r,t.beginPath();const a=Math.max(2,1.5*s.ur)*i;t.arc(h,l,a,0,2*Math.PI,!1),t.fill(),t.fillStyle=s.cr,t.beginPath(),t.arc(h,l,s.lt*i,0,2*Math.PI,!1),t.fill(),t.lineWidth=e,t.strokeStyle=s.dr,t.beginPath(),t.arc(h,l,s.lt*i+e/2,0,2*Math.PI,!1),t.stroke()}}const Xt=[{pr:0,vr:.25,mr:4,br:10,gr:.25,wr:0,Mr:.4,Sr:.8},{pr:.25,vr:.525,mr:10,br:14,gr:0,wr:0,Mr:.8,Sr:0},{pr:.525,vr:1,mr:14,br:14,gr:0,wr:0,Mr:0,Sr:0}];function Zt(t,i,n,s){return function(t,i){if("transparent"===t)return t;const n=p(t),s=n[3];return`rgba(${n[0]}, ${n[1]}, ${n[2]}, ${i*s})`}(t,n+(s-n)*i)}function Kt(t,i){const n=t%2600/2600;let s;for(const t of Xt)if(n>=t.pr&&n<=t.vr){s=t;break}e(void 0!==s,"Last price animation internal logic error");const r=(n-s.pr)/(s.vr-s.pr);return{cr:Zt(i,r,s.gr,s.wr),dr:Zt(i,r,s.Mr,s.Sr),lt:(h=r,l=s.mr,a=s.br,l+(a-l)*h)};var h,l,a}class Gt{constructor(t){this.jt=new 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0!==t.Gt&&(t.Gt.et=t.et+f+r+.6*e,s.jr+=1.2*e),void(s.jr+=d+r)}i.position}class oi{constructor(t,i){this.vt=!0,this.$r=!0,this.Hr=!0,this.Ur=null,this.jt=new ri,this.Tr=t,this.Hi=i,this.It={nt:[],it:null}}gt(t){this.vt=!0,this.Hr=!0,"data"===t&&(this.$r=!0)}Mt(t){if(!this.Tr.Ct())return null;this.vt&&this.qr();const i=this.Hi.F().layout;return this.jt.Ye(i.fontSize,i.fontFamily),this.jt.tt(this.It),this.jt}Yr(){if(this.Hr){if(this.Tr.Xr().length>0){const t=this.Hi.yt().Ks(),i=ii(t),n=1.5*ti(t)+2*i;this.Ur={above:n,below:n}}else this.Ur=null;this.Hr=!1}return this.Ur}qr(){const t=this.Tr.Ot(),i=this.Hi.yt(),n=this.Tr.Xr();this.$r&&(this.It.nt=n.map((t=>({_t:t.time,st:0,et:0,Vs:0,Fr:t.shape,D:t.color,Nr:t.internalId,nr:t.id,Gt:void 0}))),this.$r=!1);const s=this.Hi.F().layout;this.It.it=null;const e=i.Ns();if(null===e)return;const r=this.Tr.Tt();if(null===r)return;if(0===this.It.nt.length)return;let h=NaN;const l=ii(i.Ks()),a={Wr:l,jr:l};this.It.it=Mt(this.It.nt,e,!0);for(let e=this.It.it.from;e<this.It.it.to;e++){const o=n[e];o.time!==h&&(a.Wr=l,a.jr=l,h=o.time);const _=this.It.nt[e];_.st=i.zt(o.time),void 0!==o.text&&o.text.length>0&&(_.Gt={Vr:o.text,st:0,et:0,$i:0,Lt:0});const u=this.Tr.Zr(o.time);null!==u&&ai(_,o,u,a,s.fontSize,l,t,i,r.Bt)}this.vt=!1}}class _i extends Ut{constructor(t){super(t)}hr(){const t=this.er;t.Ct=!1;const i=this.Ts.F();if(!i.priceLineVisible||!this.Ts.Ct())return;const n=this.Ts.Er(0===i.priceLineSource);n.Ar||(t.Ct=!0,t.et=n.yi,t.D=this.Ts.Kr(n.D),t.rt=i.priceLineWidth,t.Ft=i.priceLineStyle)}}class ui extends U{constructor(t){super(),this.$t=t}zi(t,i,n){t.Ct=!1,i.Ct=!1;const s=this.$t;if(!s.Ct())return;const e=s.F(),r=e.lastValueVisible,h=""!==s.Gr(),l=0===e.seriesLastValueMode,a=s.Er(!1);if(a.Ar)return;r&&(t.Gt=this.Jr(a,r,l),t.Ct=0!==t.Gt.length),(h||l)&&(i.Gt=this.Qr(a,r,h,l),i.Ct=i.Gt.length>0);const o=s.Kr(a.D),_=v(o);n.t=_.t,n.yi=a.yi,i.Et=s.Ut().At(a.yi/s.Ot().Lt()),t.Et=o,t.D=_.i,i.D=_.i}Qr(t,i,n,s){let e="";const r=this.$t.Gr();return n&&0!==r.length&&(e+=`${r} `),i&&s&&(e+=this.$t.Ot().th()?t.ih:t.nh),e.trim()}Jr(t,i,n){return i?n?this.$t.Ot().th()?t.nh:t.ih:t.Gt:""}}class ci{constructor(t,i){this.sh=t,this.eh=i}rh(t){return null!==t&&(this.sh===t.sh&&this.eh===t.eh)}hh(){return new ci(this.sh,this.eh)}lh(){return this.sh}ah(){return this.eh}oh(){return this.eh-this.sh}Vi(){return this.eh===this.sh||Number.isNaN(this.eh)||Number.isNaN(this.sh)}Qn(t){return null===t?this:new ci(Math.min(this.lh(),t.lh()),Math.max(this.ah(),t.ah()))}_h(t){if(!g(t))return;if(0===this.eh-this.sh)return;const i=.5*(this.eh+this.sh);let n=this.eh-i,s=this.sh-i;n*=t,s*=t,this.eh=i+n,this.sh=i+s}uh(t){g(t)&&(this.eh+=t,this.sh+=t)}dh(){return{minValue:this.sh,maxValue:this.eh}}static fh(t){return null===t?null:new ci(t.minValue,t.maxValue)}}class di{constructor(t,i){this.ph=t,this.mh=i||null}bh(){return this.ph}gh(){return this.mh}dh(){return null===this.ph?null:{priceRange:this.ph.dh(),margins:this.mh||void 0}}static fh(t){return null===t?null:new di(ci.fh(t.priceRange),t.margins)}}class fi extends Ut{constructor(t,i){super(t),this.wh=i}hr(){const t=this.er;t.Ct=!1;const i=this.wh.F();if(!this.Ts.Ct()||!i.lineVisible)return;const n=this.wh.Mh();null!==n&&(t.Ct=!0,t.et=n,t.D=i.color,t.rt=i.lineWidth,t.Ft=i.lineStyle,t.nr=this.wh.F().id)}}class pi extends U{constructor(t,i){super(),this.Tr=t,this.wh=i}zi(t,i,n){t.Ct=!1,i.Ct=!1;const s=this.wh.F(),e=s.axisLabelVisible,r=""!==s.title,h=this.Tr;if(!e||!h.Ct())return;const l=this.wh.Mh();if(null===l)return;r&&(i.Gt=s.title,i.Ct=!0),i.Et=h.Ut().At(l/h.Ot().Lt()),t.Gt=this.Sh(s.price),t.Ct=!0;const a=v(s.axisLabelColor||s.color);n.t=a.t;const o=s.axisLabelTextColor||a.i;t.D=o,i.D=o,n.yi=l}Sh(t){const i=this.Tr.Tt();return null===i?"":this.Tr.Ot().Fi(t,i.Bt)}}class vi{constructor(t,i){this.Tr=t,this.un=i,this.xh=new fi(t,this),this.Xe=new pi(t,this),this.yh=new $t(this.Xe,t,t.Ut())}kh(t){b(this.un,t),this.gt(),this.Tr.Ut().Ch()}F(){return this.un}Th(){return this.xh}Ph(){return this.yh}Rh(){return this.Xe}gt(){this.xh.gt(),this.Xe.gt()}Mh(){const t=this.Tr,i=t.Ot();if(t.Ut().yt().Vi()||i.Vi())return null;const n=t.Tt();return null===n?null:i.Dt(this.un.price,n.Bt)}}class mi extends K{constructor(t){super(),this.Hi=t}Ut(){return this.Hi}}const bi={Bar:(t,i,n,s)=>{var e;const r=i.upColor,a=i.downColor,o=h(t(n,s)),_=l(o.Bt[0])<=l(o.Bt[3]);return{ie:null!==(e=o.D)&&void 0!==e?e:_?r:a}},Candlestick:(t,i,n,s)=>{var e,r,a;const o=i.upColor,_=i.downColor,u=i.borderUpColor,c=i.borderDownColor,d=i.wickUpColor,f=i.wickDownColor,p=h(t(n,s)),v=l(p.Bt[0])<=l(p.Bt[3]);return{ie:null!==(e=p.D)&&void 0!==e?e:v?o:_,Pe:null!==(r=p.Et)&&void 0!==r?r:v?u:c,Te:null!==(a=p.Dh)&&void 0!==a?a:v?d:f}},Area:(t,i,n,s)=>{var e,r,l,a;const o=h(t(n,s));return{ie:null!==(e=o.ot)&&void 0!==e?e:i.lineColor,ot:null!==(r=o.ot)&&void 0!==r?r:i.lineColor,bs:null!==(l=o.bs)&&void 0!==l?l:i.topColor,gs:null!==(a=o.gs)&&void 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h(super.Ot())}kt(t){if(!(("Line"===this.ll||"Area"===this.ll||"Baseline"===this.ll)&&this.un.crosshairMarkerVisible))return null;const i=this.It.Bh(t);if(null===i)return null;return{ut:i.Bt[3],lt:this.El(),Et:this.Al(),Rt:this.Ll(),Pt:this.zl(t)}}Gr(){return this.un.title}Ct