openchemlib
Version:
Manipulate molecules
15 lines (14 loc) • 1.17 MB
JavaScript
var SP=class{copyMolecule(Dt){let zt=Dt.getIDCodeAndCoordinates();navigator.clipboard.writeText(`${zt.idCode} ${zt.coordinates}`)}pasteMolecule(){return null}};var Lu="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",HA=new Uint8Array(256);for(let B=0;B<Lu.length;B++)HA[Lu.charCodeAt(B)]=B;function Uu(B){let Dt=B.length*.75,zt=B.length,qt,Gt=0,z1,Ot,Q1,D1;B.at(-1)==="="&&(Dt--,B.at(-2)==="="&&Dt--);let R1=new ArrayBuffer(Dt),F1=new Uint8Array(R1);for(qt=0;qt<zt;qt+=4)z1=HA[B.charCodeAt(qt)],Ot=HA[B.charCodeAt(qt+1)],Q1=HA[B.charCodeAt(qt+2)],D1=HA[B.charCodeAt(qt+3)],F1[Gt++]=z1<<2|Ot>>4,F1[Gt++]=(Ot&15)<<4|Q1>>2,F1[Gt++]=(Q1&3)<<6|D1&63;return R1}function NP(B){return B.toString(16).padStart(2,"0")}var Xe=globalThis.devicePixelRatio||1;var $n=class{constructor(Dt){this.ctx=Dt,this.ctx.textAlign="left",this.ctx.textBaseline="top",this.currentFontSize=12,this.currentFont="12px sans-serif",this.ctx.font=this.currentFont,this.currentColor="#000000",this.currentLineWidth=1,this.canvasCache=new Map}clearRect(Dt,zt,qt,Gt){this.ctx.clearRect(Dt,zt,qt,Gt)}getBackgroundRGB(){return 16777215}getForegroundRGB(){return 0}getSelectionBackgroundRGB(){return 12310268}getLineWidth(){return this.currentLineWidth}setRGB(Dt){let zt=Dt>>>16&255,qt=Dt>>>8&255,Gt=Dt>>>0&255;this.currentColor=`#${NP(zt)}${NP(qt)}${NP(Gt)}`,this.ctx.fillStyle=this.currentColor,this.ctx.strokeStyle=this.currentColor}setFont(Dt,zt,qt){this.currentFontSize=Dt,this.currentFont=`${zt?"bold":""} ${qt?"italic":""} ${Dt}px sans-serif`,this.ctx.font=this.currentFont}getFontSize(){return this.currentFontSize}getBounds(Dt){let zt=this.ctx.measureText(Dt);return{x:zt.actualBoundingBoxLeft,y:zt.actualBoundingBoxAscent,width:zt.actualBoundingBoxRight,height:zt.actualBoundingBoxAscent}}drawString(Dt,zt,qt){this.ctx.fillText(qt,Dt,zt)}drawCenteredString(Dt,zt,qt){this.ctx.textAlign="center",this.ctx.textBaseline="middle",this.ctx.fillText(qt,Dt,zt),this.ctx.textAlign="left",this.ctx.textBaseline="top"}setLineWidth(Dt){this.currentLineWidth=Dt,this.ctx.lineWidth=Dt}fillRectangle(Dt,zt,qt,Gt){this.ctx.fillRect(Dt,zt,qt,Gt)}fillCircle(Dt,zt,qt){let Gt=qt/2;this.ctx.beginPath(),this.ctx.arc(Dt+Gt,zt+Gt,Gt,0,2*Math.PI),this.ctx.fill()}drawLine(Dt,zt,qt,Gt){this.ctx.beginPath(),this.ctx.moveTo(Dt,zt),this.ctx.lineTo(qt,Gt),this.ctx.stroke()}drawPolygon(Dt){this.ctx.beginPath(),this.ctx.moveTo(Dt.getX(0),Dt.getY(0));for(let zt=1;zt<Dt.getSize();zt++)this.ctx.lineTo(Dt.getX(zt),Dt.getY(zt));this.ctx.stroke()}drawRectangle(Dt,zt,qt,Gt){this.ctx.strokeRect(Dt,zt,qt,Gt)}fillPolygon(Dt){this.ctx.beginPath(),this.ctx.moveTo(Dt.getX(0),Dt.getY(0));for(let zt=1;zt<Dt.getSize();zt++)this.ctx.lineTo(Dt.getX(zt),Dt.getY(zt));this.ctx.fill()}drawImage(Dt,zt,qt,Gt,z1,Ot,Q1,D1,R1){if(arguments.length!==9)throw new Error(`drawImage call with ${arguments.length} arguments unimplemented`);let F1=this.canvasCache.get(Dt);if(!F1){F1=document.createElement("canvas");let S1=Dt.imageData;F1.width=S1.width,F1.height=S1.height;let c1=F1.getContext("2d");c1.globalAlpha=0,c1.putImageData(S1,0,0),this.canvasCache.set(Dt,F1)}this.ctx.drawImage(F1,zt,qt,Gt,z1,Ot,Q1,D1,R1)}isDarkBackground(){return!1}};var JP=class{constructor(Dt,zt){this.canvasElement=Dt,this.changeListener=zt,this.drawContext=new $n(this.canvasElement.getContext("2d"))}getBackgroundRGB(){return 16777215}getCanvasWidth(){return this.canvasElement.width}getCanvasHeight(){return this.canvasElement.height}getDrawContext(){return this.drawContext}onChange(Dt,zt){this.changeListener?.({what:Dt,isUserEvent:zt})}getClipboardHandler(){return new SP}};var e2=`
/* We can customize editor styles here. */
`,R8;function yu(){if(R8)return R8;let B=new CSSStyleSheet;return B.replaceSync(e2),R8=B,B}function C8(B,Dt,zt){let qt=-1;function Gt(Ot,Q1,D1=0){Q1.button>0||Dt.fireMouseEvent(Ot,Q1.button+1,D1,Math.round(Q1.offsetX*Xe),Math.round(Q1.offsetY*Xe),Q1.shiftKey,Q1.ctrlKey,Q1.altKey,Q1.button===2)}B.addEventListener("pointerdown",Ot=>{qt===-1&&(qt=Ot.pointerId,Gt(zt.MOUSE_EVENT_PRESSED,Ot))});function z1(Ot){qt===Ot.pointerId&&(qt=-1,Gt(zt.MOUSE_EVENT_RELEASED,Ot))}return document.addEventListener("pointerup",z1),B.addEventListener("click",Ot=>{Gt(zt.MOUSE_EVENT_CLICKED,Ot,Ot.detail)}),B.addEventListener("pointerenter",Ot=>{Gt(zt.MOUSE_EVENT_ENTERED,Ot)}),B.addEventListener("pointerleave",Ot=>{Gt(zt.MOUSE_EVENT_EXITED,Ot)}),B.addEventListener("pointermove",Ot=>{qt!==-1?qt===Ot.pointerId&&Gt(zt.MOUSE_EVENT_DRAGGED,Ot):Gt(zt.MOUSE_EVENT_MOVED,Ot)}),()=>{document.removeEventListener("pointerup",z1)}}function su(B,Dt,zt,qt,Gt){let z1=typeof navigator<"u"&&navigator.platform==="MacIntel",Ot=D1=>z1&&D1.metaKey||!z1&&D1.ctrlKey;function Q1(D1,R1){let F1=n2(R1,qt);F1!==null&&zt.fireKeyEvent(D1,F1,R1.altKey,R1.ctrlKey,R1.shiftKey,Ot(R1))}return Dt.addEventListener("keydown",D1=>{Ot(D1)&&D1.key==="c"||Ot(D1)&&D1.key==="v"||Q1(qt.KEY_EVENT_PRESSED,D1)}),Dt.addEventListener("keyup",D1=>{Q1(qt.KEY_EVENT_RELEASED,D1)}),B.addEventListener("paste",D1=>{let R1=D1.clipboardData.getData("text"),F1=Gt.fromText(R1);F1&&F1.getAllAtoms()>0&&zt.addPastedOrDropped(F1)}),()=>{}}function n2(B,Dt){switch(B.key){case"Control":return Dt.KEY_CTRL;case"Alt":return Dt.KEY_ALT;case"Shift":return Dt.KEY_SHIFT;case"Delete":case"Backspace":return Dt.KEY_DELETE;case"F1":return Dt.KEY_HELP;case"Escape":return Dt.KEY_ESCAPE;case"Enter":return Dt.KEY_ENTER;default:return B.key.length===1?B.key.codePointAt(0):null}}var OP=class{constructor(Dt){this.canvasElement=Dt,this.drawContext=new $n(this.canvasElement.getContext("2d"))}setDimensions(Dt,zt){this.canvasElement.width=Dt,this.canvasElement.style.width=`${Dt/Xe}px`,this.canvasElement.height=zt,this.canvasElement.style.height=`${zt/Xe}px`}getDrawContext(){return this.drawContext}getBackgroundRGB(){return 16777215}getForegroundRGB(){return 0}};var 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