王文昊
d53ac1db32
- 新增了完整的文件预览器前端资源包，包含各类文件格式的解析、渲染依赖 - 更新@openim/wasm-client-sdk依赖版本为宽松匹配 - 删除了旧的紧急联系人菜单清理SQL脚本
106 lines
225 KiB
JavaScript
106 lines
225 KiB
JavaScript
const __vite__mapDeps=(i,m=__vite__mapDeps,d=(m.f||(m.f=["./dist-BzZSLV34.js","./package-Bop5TfAT.js","./runtime-core.esm-bundler-DO-WTVbd.js","./package-OvxnQO7z.css"])))=>i.map(i=>d[i]);
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t=(O(e,`StrokeStartLineCap`)??``).toLowerCase(),n=(O(e,`StrokeEndLineCap`)??``).toLowerCase(),r=(O(e,`StrokeDashCap`)??``).toLowerCase(),i=t===`round`||n===`round`||r===`round`?`round`:t===`square`||n===`square`||r===`square`?`square`:`butt`,a=(O(e,`StrokeLineJoin`)??``).toLowerCase(),o=a===`round`?`round`:a===`bevel`?`bevel`:`miter`,s=Number(O(e,`StrokeMiterLimit`)??10);return{cap:i,join:o,miterLimit:Number.isFinite(s)&&s>0?s:10,dash:N(O(e,`StrokeDashArray`)??``).filter(e=>Number.isFinite(e)&&e>0),dashOffset:Number(O(e,`StrokeDashOffset`)??0)||0}}function ci(e){let t=1/0,n=1/0,r=-1/0,i=-1/0,a=(e,a)=>{!Number.isFinite(e)||!Number.isFinite(a)||(t=Math.min(t,e),n=Math.min(n,a),r=Math.max(r,e),i=Math.max(i,a))};for(let t of e)t.type===`M`||t.type===`L`?a(t.x,t.y):t.type===`C`?(a(t.x1,t.y1),a(t.x2,t.y2),a(t.x,t.y)):t.type===`Q`?(a(t.x1,t.y1),a(t.x,t.y)):t.type===`A`&&(a(t.x-t.rx,t.y-t.ry),a(t.x+t.rx,t.y+t.ry));return Number.isFinite(t)?{minX:t,minY:n,maxX:r,maxY:i}:void 0}function li(e){let t=wr(e,4278190080);return{r:t&255,g:t>>>8&255,b:t>>>16&255,a:t>>>24&255}}function ui(e){let t=li(e);return[t.r/255,t.g/255,t.b/255,t.a/255]}function di(e){return e<1024?`${e} B`:e<1024*1024?`${(e/1024).toFixed(1)} KiB`:`${(e/1024/1024).toFixed(1)} MiB`}function fi(e,t,n){let r=pi(e,e.VERTEX_SHADER,t),i=pi(e,e.FRAGMENT_SHADER,n),a=e.createProgram();if(!a)throw Error(`Failed to create WebGLProgram.`);if(e.attachShader(a,r),e.attachShader(a,i),e.linkProgram(a),e.deleteShader(r),e.deleteShader(i),!e.getProgramParameter(a,e.LINK_STATUS)){let t=e.getProgramInfoLog(a)??`unknown link error`;throw e.deleteProgram(a),Error(`WebGL program link failed: ${t}`)}return a}function pi(e,t,n){let r=e.createShader(t);if(!r)throw Error(`Failed to create WebGLShader.`);if(e.shaderSource(r,n),e.compileShader(r),!e.getShaderParameter(r,e.COMPILE_STATUS)){let t=e.getShaderInfoLog(r)??`unknown shader compile error`;throw e.deleteShader(r),Error(`WebGL shader compile failed: ${t}`)}return r}var mi=`
|
||
attribute vec2 a_pos;
|
||
attribute vec4 a_color;
|
||
uniform vec4 u_matrix;
|
||
uniform vec4 u_viewport;
|
||
varying vec4 v_color;
|
||
void main() {
|
||
float x = u_matrix.x * a_pos.x + u_matrix.z * a_pos.y + u_viewport.x;
|
||
float y = u_matrix.y * a_pos.x + u_matrix.w * a_pos.y + u_viewport.y;
|
||
vec2 clip = vec2((x / u_viewport.z) * 2.0 - 1.0, 1.0 - (y / u_viewport.w) * 2.0);
|
||
gl_Position = vec4(clip, 0.0, 1.0);
|
||
v_color = a_color;
|
||
}
|
||
`,hi=`
|
||
precision mediump float;
|
||
varying vec4 v_color;
|
||
void main() {
|
||
gl_FragColor = v_color;
|
||
}
|
||
`,gi=class{constructor(e){this.document=e,this.fontCache=new Map,this.xmlCache=new Map}async render(e,t,n={}){if(!this.document.opc)throw Error(`XPS page requires an OPC package view.`);let r=v(e.diagnostics),i=(await this.getXmlDocument(e.sourcePath)).documentElement,a=t.getContext(`2d`);if(!a)throw Error(`CanvasRenderingContext2D is not available.`);let o=n.background??`#ffffff`,s={dpr:Mr(t),zoom:n.zoom??1},c=kr({canvasWidth:t.width,canvasHeight:t.height,pageWidth:e.width,pageHeight:e.height,zoom:n.zoom,panX:n.panX,panY:n.panY}),l=0;if(n.preferWebgl??!0)try{let o=this.getWebGlBackend(n.webglCanvas);n.webglCanvas&&(n.webglCanvas.style.visibility=`visible`);let u=o.render(e,i,t,{...n,compositeToTarget:!n.webglCanvas});return a.save(),a.setTransform(1,0,0,1,0,0),a.clearRect(0,0,t.width,t.height),a.restore(),l+=u.commands,l+=await this.renderElementToCanvas(i,a,e.sourcePath,c,1,r,{vectors:!1,overlays:!0},n,s),r.push(...u.warnings),{backend:`webgl-xps`,commands:l,warnings:r}}catch(t){n.webglCanvas&&(n.webglCanvas.style.visibility=`hidden`),r.push(_(`warning`,`WEBGL_XPS_BACKEND_FALLBACK`,`WebGL XPS vector path failed, falling back to ${n.preferWasm?`WASM raster`:`Canvas2D`}: ${String(t)}`,e.sourcePath))}if(n.webglCanvas&&(n.webglCanvas.style.visibility=`hidden`),n.preferWasm)try{return this.wasm??=new Lr({wasmUrl:n.wasmUrl}),await this.wasm.init(),this.wasm.begin(t.width,t.height,o),l+=this.renderElementToWasm(i,c,1,r,n,s),a.setTransform(1,0,0,1,0,0),a.putImageData(this.wasm.toImageData(),0,0),l+=await this.renderElementToCanvas(i,a,e.sourcePath,c,1,r,{vectors:!1,overlays:!0},n,s),{backend:`wasm-raster`,commands:l,warnings:r}}catch(e){r.push(_(`warning`,`WASM_BACKEND_FALLBACK`,`WASM raster path failed, falling back to Canvas2D: ${String(e)}`))}return a.save(),a.setTransform(1,0,0,1,0,0),a.fillStyle=o,a.fillRect(0,0,t.width,t.height),a.restore(),l+=await this.renderElementToCanvas(i,a,e.sourcePath,c,1,r,{vectors:!0,overlays:!0},n,s),{backend:`canvas2d`,commands:l,warnings:r}}getWebGlBackend(e){return(!this.webgl||this.webglCanvas!==e)&&(this.webgl?.dispose(),this.webgl=new Hr(e),this.webglCanvas=e),this.webgl}getXmlDocument(e){let t=this.xmlCache.get(e);return t||(t=this.document.opc.readText(e).then(t=>A(t,e)),this.xmlCache.set(e,t)),t}dispose(){this.webgl?.dispose(),this.webgl=void 0,this.webglCanvas=void 0,this.xmlCache.clear(),this.fontCache.clear()}async renderElementToCanvas(e,t,n,r,i,a,o,s,c){let l=D(e),u=V(r,wi(e)),d=i*ki(O(e,`Opacity`)),f=0;if(l===`Path`&&o.vectors){let n=Ti(e);if(n.length>0){t.save(),t.setTransform(u.a,u.b,u.c,u.d,u.e,u.f),t.globalAlpha=d;let r=O(e,`Clip`);r&&(t.beginPath(),Cn(t,Sn(r)),t.clip()),t.beginPath(),Cn(t,n);let i=Di(e,`Fill`,d),a=Di(e,`Stroke`,d),o=Number(O(e,`StrokeThickness`)??1),l=vi(n);i&&Fr(l,u,s,c)&&(t.fillStyle=i,t.fill(Ai(e))),a&&o>0&&(t.strokeStyle=a,t.lineWidth=Nr(o,u,s,c),_i(t,e,t.lineWidth),t.stroke()),t.restore(),f++}}else if(l===`Glyphs`&&o.overlays)f+=await this.drawGlyphs(t,n,e,u,d,a,s,c);else if(l===`Image`&&o.overlays){let r=O(e,`Source`)??O(e,`ImageSource`);if(r)try{await this.drawImageResource(t,n,r,u,d,e),f++}catch(e){a.push(_(`warning`,`XPS_IMAGE_DRAW_FAILED`,`Failed to draw image ${r}: ${String(e)}`,n))}}else l===`Canvas`||l===`FixedPage`||l.endsWith(`.RenderTransform`)||l.endsWith(`.Resources`);if(l===`Path`&&o.overlays){let r=Oi(e,`Fill`,`ImageBrush`),i=r?O(r,`ImageSource`):void 0;if(r&&i)try{await this.drawImageBrush(t,n,i,u,d,e,r),f++}catch(e){a.push(_(`warning`,`XPS_IMAGEBRUSH_FAILED`,`Failed to draw ImageBrush ${i}: ${String(e)}`,n))}}for(let r of k(e))D(r).includes(`.`)||(f+=await this.renderElementToCanvas(r,t,n,u,d,a,o,s,c));return f}renderElementToWasm(e,t,n,r,i,a){if(!this.wasm)return 0;let o=D(e),s=V(t,wi(e)),c=n*ki(O(e,`Opacity`)),l=0;if(o===`Path`){let t=Ti(e);if(t.length>0){let n=Di(e,`Fill`,c),r=Di(e,`Stroke`,c),o=Number(O(e,`StrokeThickness`)??1),u=Nr(o,s,i,a)*Math.max(1e-12,Math.hypot(s.a,s.b)),d=wn(t,.5);if(n)for(let e of d)(e.closed||e.points.length>=6)&&this.wasm.drawPolygon(e.points,s,n);if(r&&o>0)for(let e of d)this.wasm.drawPolyline(e.points,s,r,u);l++}}for(let t of k(e))D(t).includes(`.`)||(l+=this.renderElementToWasm(t,s,c,r,i,a));return l}async drawGlyphs(e,t,n,r,i,a,o,s){let c=O(n,`UnicodeString`)??``;if(!c)return 0;let l=Number(O(n,`OriginX`)??0),u=Number(O(n,`OriginY`)??0),d=Number(O(n,`FontRenderingEmSize`)??12);if(!Pr(d,r,o,s))return 0;let f=Di(n,`Fill`,i)??`#000000`,p=await this.fontFamilyForGlyphs(t,n,a)??`sans-serif`;e.save(),e.setTransform(r.a,r.b,r.c,r.d,r.e,r.f),e.globalAlpha=i,e.fillStyle=f,e.font=`${d}px "${p}"`,e.textBaseline=`alphabetic`;let m=O(n,`Indices`);return 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c?c.height:0)),d=Number(O(a,`Canvas.Left`)??O(a,`X`)??0),f=Number(O(a,`Canvas.Top`)??O(a,`Y`)??0);e.save(),e.setTransform(r.a,r.b,r.c,r.d,r.e,r.f),e.globalAlpha=i,e.drawImage(c,d,f,l||c.width,u||c.height),e.restore()}async drawImageBrush(e,t,n,r,i,a,o){let s=this.document.opc,c=E(t,n.replace(/^\//,``)),l=await ue(await s.readBytes(c),s.getContentType(c)??le(c)??`image/png`),u=ji(O(o,`Viewport`))??ji(O(o,`Viewbox`))??[0,0,Number(l.width??1),Number(l.height??1)],d=Ti(a);e.save(),e.setTransform(r.a,r.b,r.c,r.d,r.e,r.f),e.globalAlpha=i,d.length>0&&(e.beginPath(),Cn(e,d),e.clip()),e.drawImage(l,u[0],u[1],u[2],u[3]),e.restore()}};function _i(e,t,n){let r=(O(t,`StrokeStartLineCap`)??``).toLowerCase(),i=(O(t,`StrokeEndLineCap`)??``).toLowerCase(),a=(O(t,`StrokeDashCap`)??``).toLowerCase();r===`round`||i===`round`||a===`round`?e.lineCap=`round`:r===`square`||i===`square`||a===`square`?e.lineCap=`square`:e.lineCap=`butt`;let o=(O(t,`StrokeLineJoin`)??``).toLowerCase();e.lineJoin=o===`round`?`round`:o===`bevel`?`bevel`:`miter`;let s=Number(O(t,`StrokeMiterLimit`)??10);Number.isFinite(s)&&s>0&&(e.miterLimit=s);let c=N(O(t,`StrokeDashArray`)??``);if(c.length>0){let r=Number(O(t,`StrokeDashOffset`)??0);e.setLineDash(c.map(e=>Math.max(0,e*n))),e.lineDashOffset=Number.isFinite(r)?r*n:0}else e.setLineDash([]),e.lineDashOffset=0}function vi(e){let t=1/0,n=1/0,r=-1/0,i=-1/0,a=(e,a)=>{!Number.isFinite(e)||!Number.isFinite(a)||(t=Math.min(t,e),n=Math.min(n,a),r=Math.max(r,e),i=Math.max(i,a))};for(let t of e)t.type===`M`||t.type===`L`?a(t.x,t.y):t.type===`C`?(a(t.x1,t.y1),a(t.x2,t.y2),a(t.x,t.y)):t.type===`Q`?(a(t.x1,t.y1),a(t.x,t.y)):t.type===`A`&&(a(t.x-t.rx,t.y-t.ry),a(t.x+t.rx,t.y+t.ry));return Number.isFinite(t)?{minX:t,minY:n,maxX:r,maxY:i}:void 0}function yi(e,t,n,r,i,a){let o=n.split(`;`),s=r,c=0;for(let n of o){let r=n.trim();if(!r)continue;let 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t=String.fromCharCode(e[0],e[1],e[2],e[3]);return t===`OTTO`||t===`true`||t===`typ1`||t===`ttcf`||e[0]===0&&e[1]===1&&e[2]===0&&e[3]===0}function Ci(e){let t=2166136261;for(let n=0;n<e.length;n++)t^=e.charCodeAt(n),t=Math.imul(t,16777619);return(t>>>0).toString(36)}function wi(e){let t=Cr(O(e,`RenderTransform`)??O(e,`Transform`));for(let n of k(e)){let e=D(n);if(e.endsWith(`.RenderTransform`)||e.endsWith(`.Transform`)){let e=k(n).find(e=>D(e)===`MatrixTransform`);e&&(t=V(t,Cr(O(e,`Matrix`))))}}let n=Number(O(e,`Canvas.Left`)??0),r=Number(O(e,`Canvas.Top`)??0);return(n||r)&&(t=V({a:1,b:0,c:0,d:1,e:n,f:r},t)),t}function Ti(e){let t=O(e,`Data`);if(t)return Sn(t);for(let t of k(e))if(D(t)===`Path.Data`)for(let e of k(t)){let t=O(e,`Figures`);if(t)return Sn(t);if(D(e)===`PathGeometry`){let t=Ei(e);if(t)return Sn(t)}}return[]}function Ei(e){let t=[];for(let n of k(e).filter(e=>D(e)===`PathFigure`)){let e=N(O(n,`StartPoint`)??``);e.length>=2&&t.push(`M ${e[0]} ${e[1]}`);for(let e of k(n)){let 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d=t.getContext(`2d`);if(!d)throw Error(`CanvasRenderingContext2D is not available for WebGL text overlay.`);return d.save(),d.setTransform(1,0,0,1,0,0),d.clearRect(0,0,t.width,t.height),(n.compositeToTarget??!0)&&d.drawImage(this.canvas,0,0),this.drawTextOverlay(d,e,i),d.restore(),s.vertexCount===0&&e.primitives.some(e=>e.type!==`text`)&&r.push(_(`warning`,`WEBGL_EMPTY_SCENE`,`WebGL scene contained no drawable geometry; Canvas/WASM fallback may be required.`,e.sourcePath)),{commands:s.primitiveCount,warnings:r,gpuBytes:this.gpuBytes,vertexCount:s.vertexCount,textCount:s.textCount,cacheHit:c}}dispose(){for(let e of this.scenes.values())this.gl.deleteBuffer(e.buffer);this.scenes.clear(),this.gpuBytes=0}resize(e,t){(this.canvas.width!==e||this.canvas.height!==t)&&(this.canvas.width=e,this.canvas.height=t)}compileScene(e,t,n,r,i){let a=new Ri,o=0,s=0;for(let t of e.primitives){if(t.type===`text`){s++;continue}o++,zi(a,t,r,n,i)}let c=a.byteLength,l=n.maxGpuCacheBytes??Ni;if(c>l)throw 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|
||
attribute vec2 a_pos;
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||
attribute vec4 a_color;
|
||
uniform vec4 u_matrix;
|
||
uniform vec4 u_viewport;
|
||
varying vec4 v_color;
|
||
void main() {
|
||
float x = u_matrix.x * a_pos.x + u_matrix.z * a_pos.y + u_viewport.x;
|
||
float y = u_matrix.y * a_pos.x + u_matrix.w * a_pos.y + u_viewport.y;
|
||
vec2 clip = vec2((x / u_viewport.z) * 2.0 - 1.0, 1.0 - (y / u_viewport.w) * 2.0);
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gl_Position = vec4(clip, 0.0, 1.0);
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v_color = a_color;
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||
}
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`,$i=`
|
||
precision mediump float;
|
||
varying vec4 v_color;
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||
void main() {
|
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gl_FragColor = v_color;
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||
}
|
||
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i=this.ensureContext(r),a=this.ensureProgram(i),o=this.ensureEdgeProgram(i),s=this.ensureScene(i,e);this.evictScenes(i,n.maxCachedScenes??2,n.maxGpuCacheBytes??160*1024*1024),i.viewport(0,0,r.width,r.height),i.enable(i.DEPTH_TEST),i.disable(i.CULL_FACE),i.clearColor(.97,.98,1,1),i.clear(i.COLOR_BUFFER_BIT|i.DEPTH_BUFFER_BIT),i.useProgram(a.program);let c=fa(e,r,n);i.uniformMatrix4fv(a.uMvp,!1,c.mvp),i.uniformMatrix4fv(a.uModel,!1,pa()),i.uniform3f(a.uLight0,.35,.65,.68),i.uniform3f(a.uLight1,-.75,.4,-.5),i.uniform1f(a.uAmbient,.28);let l=0;i.enable(i.POLYGON_OFFSET_FILL),i.polygonOffset(1,1);for(let e of s.meshes){let t=e.mesh.color??[.72,.74,.78];i.uniform3f(a.uColor,t[0],t[1],t[2]),e.vao&&`bindVertexArray`in 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t=e.getContext(`webgl2`,{antialias:!0,alpha:!1})??e.getContext(`webgl`,{antialias:!0,alpha:!1});if(!t)throw Error(`WebGL is not available for 3D W3D rendering.`);if(this.gl&&this.currentCanvas!==e){for(let e of this.cache.values())aa(this.gl,e);this.cache.clear()}return this.gl=t,this.currentCanvas=e,this.program=void 0,this.edgeProgram=void 0,t}ensureProgram(e){if(this.program)return this.program;let t=ua(e,la(e,e.VERTEX_SHADER,`
|
||
attribute vec3 a_position;
|
||
attribute vec3 a_normal;
|
||
uniform mat4 u_mvp;
|
||
uniform mat4 u_model;
|
||
varying vec3 v_normal;
|
||
void main() {
|
||
v_normal = normalize((u_model * vec4(a_normal, 0.0)).xyz);
|
||
gl_Position = u_mvp * vec4(a_position, 1.0);
|
||
}
|
||
`),la(e,e.FRAGMENT_SHADER,`
|
||
precision mediump float;
|
||
varying vec3 v_normal;
|
||
uniform vec3 u_color;
|
||
uniform vec3 u_light0;
|
||
uniform vec3 u_light1;
|
||
uniform float u_ambient;
|
||
void main() {
|
||
vec3 n = normalize(v_normal);
|
||
float d0 = max(dot(n, normalize(u_light0)), 0.0);
|
||
float d1 = max(dot(n, normalize(u_light1)), 0.0) * 0.45;
|
||
vec3 color = u_color * (u_ambient + d0 * 0.78 + d1);
|
||
gl_FragColor = vec4(color, 1.0);
|
||
}
|
||
`)),n={program:t,aPosition:e.getAttribLocation(t,`a_position`),aNormal:e.getAttribLocation(t,`a_normal`),uMvp:da(e,t,`u_mvp`),uModel:da(e,t,`u_model`),uColor:da(e,t,`u_color`),uLight0:da(e,t,`u_light0`),uLight1:da(e,t,`u_light1`),uAmbient:da(e,t,`u_ambient`)};return this.program=n,n}ensureEdgeProgram(e){if(this.edgeProgram)return this.edgeProgram;let t=ua(e,la(e,e.VERTEX_SHADER,`
|
||
attribute vec3 a_position;
|
||
uniform mat4 u_mvp;
|
||
void main() {
|
||
gl_Position = u_mvp * vec4(a_position, 1.0);
|
||
}
|
||
`),la(e,e.FRAGMENT_SHADER,`
|
||
precision mediump float;
|
||
uniform vec3 u_color;
|
||
void main() {
|
||
gl_FragColor = vec4(u_color, 0.9);
|
||
}
|
||
`));return this.edgeProgram={program:t,aPosition:e.getAttribLocation(t,`a_position`),uMvp:da(e,t,`u_mvp`),uColor:da(e,t,`u_color`)},this.edgeProgram}evictScenes(e,t,n){let r=Array.from(this.cache.values()).reduce((e,t)=>e+t.bytes,0);for(;this.cache.size>Math.max(1,t)||r>n;){let t=this.cache.entries().next().value;if(!t)break;this.cache.delete(t[0]),aa(e,t[1]),r-=t[1].bytes}}ensureScene(e,t){let n=this.cache.get(t);if(n)return n;let r=[],i=0,a=this.ensureProgram(e),o=typeof e.createVertexArray==`function`;for(let n of t.model.meshes){let t=oa(e,e.ARRAY_BUFFER,n.positions),s=n.normals??new Float32Array(n.positions.length),c={mesh:n,pos:t,normal:oa(e,e.ARRAY_BUFFER,s),index:oa(e,e.ELEMENT_ARRAY_BUFFER,n.indices),edgeIndex:n.edgeIndices?oa(e,e.ELEMENT_ARRAY_BUFFER,n.edgeIndices):void 0,indexType:n.indices instanceof Uint32Array?e.UNSIGNED_INT:e.UNSIGNED_SHORT,edgeIndexType:n.edgeIndices instanceof 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sa(e,t,n){e.bindBuffer(e.ARRAY_BUFFER,n.pos),e.enableVertexAttribArray(t.aPosition),e.vertexAttribPointer(t.aPosition,3,e.FLOAT,!1,0,0),e.bindBuffer(e.ARRAY_BUFFER,n.normal),e.enableVertexAttribArray(t.aNormal),e.vertexAttribPointer(t.aNormal,3,e.FLOAT,!1,0,0)}function ca(e){let t=e.getContext(`2d`);t&&(t.setTransform(1,0,0,1,0,0),t.clearRect(0,0,e.width,e.height))}function la(e,t,n){let r=e.createShader(t);if(!r)throw Error(`Failed to create WebGL shader.`);if(e.shaderSource(r,n),e.compileShader(r),!e.getShaderParameter(r,e.COMPILE_STATUS)){let t=e.getShaderInfoLog(r)??`unknown shader error`;throw e.deleteShader(r),Error(t)}return r}function ua(e,t,n){let r=e.createProgram();if(!r)throw Error(`Failed to create WebGL program.`);if(e.attachShader(r,t),e.attachShader(r,n),e.linkProgram(r),!e.getProgramParameter(r,e.LINK_STATUS)){let t=e.getProgramInfoLog(r)??`unknown program link error`;throw e.deleteProgram(r),Error(t)}return r}function da(e,t,n){let r=e.getUniformLocation(t,n);if(!r)throw Error(`Missing shader uniform ${n}.`);return r}function fa(e,t,n){let r=e.model.bounds,i=Math.max(1e-6,t.width/Math.max(1,t.height)),a=n.yaw??-.78,o=_a(n.pitch??.55,-1.45,1.45),s=Math.max(.05,Math.min(100,n.zoom??1)),c=Math.max(1e-4,r.radius),l=c*2.55/s,u=Math.cos(o),d=[Math.sin(a)*u,Math.sin(o),Math.cos(a)*u],f=r.center,p=[Math.cos(a),0,-Math.sin(a)],m=[p[1]*d[2]-p[2]*d[1],p[2]*d[0]-p[0]*d[2],p[0]*d[1]-p[1]*d[0]],h=c*2/Math.max(1,Math.min(t.width,t.height))/Math.max(.1,s),g=(n.panX??0)*h,_=(n.panY??0)*h,v=[f[0]-p[0]*g+m[0]*_,f[1]-p[1]*g+m[1]*_,f[2]-p[2]*g+m[2]*_],y=ha([v[0]+d[0]*l,v[1]+d[1]*l,v[2]+d[2]*l],v,[0,1,0]);return{mvp:ga(ma(Math.PI/4,i,Math.max(.001,l-c*2.2),l+c*3.2),y)}}function pa(){return new Float32Array([1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1])}function ma(e,t,n,r){let i=1/Math.tan(e/2),a=1/(n-r);return new Float32Array([i/t,0,0,0,0,i,0,0,0,0,(r+n)*a,-1,0,0,2*r*n*a,0])}function ha(e,t,n){let r=e[0]-t[0],i=e[1]-t[1],a=e[2]-t[2],o=Math.hypot(r,i,a)||1;r/=o,i/=o,a/=o;let s=n[1]*a-n[2]*i,c=n[2]*r-n[0]*a,l=n[0]*i-n[1]*r;o=Math.hypot(s,c,l)||1,s/=o,c/=o,l/=o;let u=i*l-a*c,d=a*s-r*l,f=r*c-i*s;return new Float32Array([s,u,r,0,c,d,i,0,l,f,a,0,-(s*e[0]+c*e[1]+l*e[2]),-(u*e[0]+d*e[1]+f*e[2]),-(r*e[0]+i*e[1]+a*e[2]),1])}function ga(e,t){let n=new Float32Array(16);for(let r=0;r<4;r++)for(let i=0;i<4;i++)n[r*4+i]=e[0+i]*t[r*4+0]+e[4+i]*t[r*4+1]+e[8+i]*t[r*4+2]+e[12+i]*t[r*4+3];return n}function _a(e,t,n){return Math.max(t,Math.min(n,e))}function va(e){return typeof WebGL2RenderingContext<`u`&&e instanceof WebGL2RenderingContext}var ya=class{constructor(e){this.document=e}async render(e,t,n={}){let r=this.document.pageData[e];if(!r)throw Error(`Page index out of range: ${e}`);return r.kind!==`w2d-text`&&r.kind!==`w3d-model`&&n.webglCanvas&&(n.webglCanvas.style.visibility=`hidden`),r.kind===`xps-fixed-page`?(this.xps??=new gi(this.document),await this.xps.render(r,t,n)):r.kind===`w2d-text`?(this.w2d??=new ea,await this.w2d.render(r,t,n)):r.kind===`w3d-model`?(this.w3d??=new ia,await this.w3d.render(r,t,n)):r.kind===`image`?await this.renderImage(r,t,n):this.renderUnsupported(r,t,n)}dispose(){this.xps?.dispose(),this.w2d?.dispose(),this.w3d?.dispose()}async renderImage(e,t,n){let r=this.document.zip;if(!r)throw Error(`Image page requires a ZIP package.`);let i=t.getContext(`2d`);if(!i)throw Error(`CanvasRenderingContext2D is not available.`);i.save(),i.setTransform(1,0,0,1,0,0),i.fillStyle=n.background??`#ffffff`,i.fillRect(0,0,t.width,t.height),i.restore();let a=await ue(await r.read(e.sourcePath),e.mediaType),o=`width`in a?a.width:a.naturalWidth,s=`height`in a?a.height:a.naturalHeight,c=Math.min(t.width/Math.max(1,o),t.height/Math.max(1,s))*(n.zoom??1),l=o*c,u=s*c,d=(t.width-l)/2+(n.panX??0),f=(t.height-u)/2+(n.panY??0);return i.drawImage(a,d,f,l,u),{backend:`image`,commands:1,warnings:v(e.diagnostics)}}renderUnsupported(e,t,n){let r=t.getContext(`2d`);if(!r)throw Error(`CanvasRenderingContext2D is not available.`);return r.save(),r.setTransform(1,0,0,1,0,0),r.fillStyle=n.background??`#ffffff`,r.fillRect(0,0,t.width,t.height),r.fillStyle=`#111827`,r.font=`16px sans-serif`,ba(r,e.name,32,48,t.width-64,24),r.font=`13px sans-serif`,r.fillStyle=`#92400e`,ba(r,e.reason,32,88,t.width-64,20),r.restore(),{backend:`unsupported`,commands:0,warnings:[...e.diagnostics,_(`warning`,`PAGE_UNSUPPORTED`,e.reason,e.sourcePath)]}}};function ba(e,t,n,r,i,a){let o=t.split(/\s+/),s=``;for(let t of o){let o=s?`${s} ${t}`:t;e.measureText(o).width>i&&s?(e.fillText(s,n,r),s=t,r+=a):s=o}s&&e.fillText(s,n,r)}var xa=class{constructor(e,t={}){this.pageIndex=0,this.zoom=1,this.panX=0,this.panY=0,this.yaw=-.78,this.pitch=.55,this.rendering=!1,this.renderAgain=!1,this.renderRaf=0,this.renderSeq=0,this.currentDpr=1,this.preferWebgl=t.preferWebgl??!0,this.preferWasm=t.preferWasm??!0,this.wasmUrl=t.wasmUrl,this.background=t.background??`#ffffff`,this.maxDevicePixelRatio=t.maxDevicePixelRatio??2,this.maxCanvasPixels=t.maxCanvasPixels??16777216,this.maxGpuCacheBytes=t.maxGpuCacheBytes,this.maxCachedScenes=t.maxCachedScenes,this.lineWeightMode=t.lineWeightMode??`adaptive`,this.minStrokeCssPx=t.minStrokeCssPx,this.maxOverviewStrokeCssPx=t.maxOverviewStrokeCssPx,this.minTextCssPx=t.minTextCssPx,this.minFilledAreaCssPx=t.minFilledAreaCssPx,this.root=document.createElement(`div`),this.root.className=`dwfv-root`;let n=document.createElement(`div`);n.className=`dwfv-toolbar`,this.pageSelect=document.createElement(`select`),this.zoomOutButton=Sa(`−`),this.zoomInButton=Sa(`+`),this.resetButton=Sa(`适应`),this.status=document.createElement(`span`),this.status.className=`dwfv-status`,n.append(`页: `,this.pageSelect,this.zoomOutButton,this.zoomInButton,this.resetButton,this.status);let r=document.createElement(`div`);r.className=`dwfv-workspace`,this.treePanel=document.createElement(`div`),this.treePanel.className=`dwfv-tree`,this.treePanel.style.display=`none`;let i=document.createElement(`div`);i.className=`dwfv-stage`,this.webglCanvas=document.createElement(`canvas`),this.webglCanvas.className=`dwfv-canvas dwfv-webgl-canvas`,this.webglCanvas.style.visibility=`hidden`,this.canvas=document.createElement(`canvas`),this.canvas.className=`dwfv-canvas dwfv-overlay-canvas`,this.canvas.style.touchAction=`none`,i.append(this.webglCanvas,this.canvas),r.append(this.treePanel,i),this.root.append(n,r),e.replaceChildren(this.root),this.pageSelect.addEventListener(`change`,()=>{this.pageIndex=this.pageSelect.selectedIndex,this.resetView(),this.populateModelTree(),this.requestRender()}),this.zoomOutButton.addEventListener(`click`,()=>{this.zoomAtCenter(.8),this.requestRender()}),this.zoomInButton.addEventListener(`click`,()=>{this.zoomAtCenter(1.25),this.requestRender()}),this.resetButton.addEventListener(`click`,()=>{this.resetView(),this.requestRender()}),this.canvas.addEventListener(`wheel`,e=>this.onWheel(e),{passive:!1}),this.canvas.addEventListener(`pointerdown`,e=>this.onPointerDown(e)),window.addEventListener(`pointermove`,e=>this.onPointerMove(e)),window.addEventListener(`pointerup`,()=>{this.drag=void 0}),this.canvas.addEventListener(`contextmenu`,e=>e.preventDefault()),new ResizeObserver(()=>this.requestRender()).observe(i),this.setStatus(`选择 .dwf/.dwfx 文件`)}setPreferWebgl(e){this.preferWebgl=e,this.requestRender()}setPreferWasm(e){this.preferWasm=e,this.requestRender()}setLineWeightMode(e){this.lineWeightMode=e,this.renderer?.dispose(),this.requestRender()}async load(e,t={}){this.setStatus(`解析文件中…`),this.renderer?.dispose(),this.doc=await yr(e,{fileName:t.fileName}),this.renderer=new ya(this.doc),this.pageIndex=t.pageIndex??0,this.zoom=1,this.panX=this.panY=0,this.yaw=-.78,this.pitch=.55,this.preferWebgl=t.preferWebgl??this.preferWebgl,this.preferWasm=t.preferWasm??this.preferWasm,this.wasmUrl=t.wasmUrl??this.wasmUrl,this.background=t.background??this.background,this.maxGpuCacheBytes=t.maxGpuCacheBytes??this.maxGpuCacheBytes,this.maxCachedScenes=t.maxCachedScenes??this.maxCachedScenes,this.lineWeightMode=t.lineWeightMode??this.lineWeightMode,this.minStrokeCssPx=t.minStrokeCssPx??this.minStrokeCssPx,this.maxOverviewStrokeCssPx=t.maxOverviewStrokeCssPx??this.maxOverviewStrokeCssPx,this.minTextCssPx=t.minTextCssPx??this.minTextCssPx,this.minFilledAreaCssPx=t.minFilledAreaCssPx??this.minFilledAreaCssPx,this.populatePages(),this.populateModelTree(),await this.render()}async render(){if(!(!this.renderer||!this.doc)){if(this.rendering)return this.renderAgain=!0,this.pendingRender;this.rendering=!0;try{this.resizeCanvasToDisplaySize();let e=this.doc.pageData[this.pageIndex];if(!e)return;let t=++this.renderSeq,n=this.renderer.render(this.pageIndex,this.canvas,{zoom:this.zoom,panX:this.panX,panY:this.panY,preferWebgl:this.preferWebgl,preferWasm:this.preferWasm,wasmUrl:this.wasmUrl,background:this.background,maxGpuCacheBytes:this.maxGpuCacheBytes,maxCachedScenes:this.maxCachedScenes,webglCanvas:this.webglCanvas,yaw:this.yaw,pitch:this.pitch,lineWeightMode:this.lineWeightMode,minStrokeCssPx:this.minStrokeCssPx,maxOverviewStrokeCssPx:this.maxOverviewStrokeCssPx,minTextCssPx:this.minTextCssPx,minFilledAreaCssPx:this.minFilledAreaCssPx});this.pendingRender=n;try{let r=await n;if(this.pendingRender===n&&t===this.renderSeq){let t=r.warnings.filter(e=>e.level!==`info`).length,n=this.currentDpr>1?` · DPR ${this.currentDpr.toFixed(2)}`:``;this.setStatus(`${this.doc.kind.toUpperCase()} · ${e.kind} · ${r.backend} · ${r.commands} ops${n}${t?` · ${t} 警告`:``}`,t>0)}return r}catch(e){throw t===this.renderSeq&&this.setStatus(`渲染失败：${String(e)}`,!0),e}}finally{this.rendering=!1,this.renderAgain&&(this.renderAgain=!1,this.requestRender())}}}getDocument(){return this.doc}fit(){this.resetView(),this.requestRender()}dispose(){this.renderRaf&&cancelAnimationFrame(this.renderRaf),this.renderRaf=0,this.renderer?.dispose(),this.renderer=void 0,this.doc=void 0,this.root.replaceChildren()}requestRender(){this.renderRaf||=requestAnimationFrame(()=>{this.renderRaf=0,this.render()})}populatePages(){this.pageSelect.replaceChildren();let e=this.doc?.pageData??[];for(let[t,n]of e.entries()){let e=document.createElement(`option`);e.value=String(t),e.textContent=`${t+1}. ${n.name} (${n.kind})`,this.pageSelect.append(e)}this.pageSelect.selectedIndex=Math.max(0,Math.min(this.pageIndex,e.length-1))}populateModelTree(){let e=this.doc?.pageData[this.pageIndex];if(!e||e.kind!==`w3d-model`||!e.model.sceneTree?.length){this.treePanel.style.display=`none`,this.treePanel.replaceChildren();return}this.treePanel.style.display=``;let t=document.createElement(`div`);t.className=`dwfv-tree-header`,t.textContent=`模型结构 · ${e.model.stats.nodeCount??0} 节点`;let n=document.createElement(`div`);n.className=`dwfv-tree-stats`,n.textContent=`${e.model.stats.meshCount} meshes · ${e.model.stats.triangleCount} triangles · ${e.model.stats.textureCount??0} textures`;let r=document.createElement(`div`);r.className=`dwfv-tree-content`;for(let t of e.model.sceneTree)r.append(Ca(t));this.treePanel.replaceChildren(t,n,r)}resizeCanvasToDisplaySize(){let e=this.canvas.getBoundingClientRect(),t=Math.max(1,e.width),n=Math.max(1,e.height),r=Math.max(1,Math.min(this.maxDevicePixelRatio,window.devicePixelRatio||1)),i=t*n*r*r;i>this.maxCanvasPixels&&(r*=Math.sqrt(this.maxCanvasPixels/i)),this.currentDpr=r;let a=Math.max(1,Math.floor(t*r)),o=Math.max(1,Math.floor(n*r));(this.canvas.width!==a||this.canvas.height!==o)&&(this.canvas.width=a,this.canvas.height=o),(this.webglCanvas.width!==a||this.webglCanvas.height!==o)&&(this.webglCanvas.width=a,this.webglCanvas.height=o)}resetView(){this.zoom=1,this.panX=0,this.panY=0,this.yaw=-.78,this.pitch=.55;let e=this.doc?.pageData[this.pageIndex];if(e?.kind===`w3d-model`){let t=e.model.initialView?.camera,n=t?.position,r=t?.target;if(n&&r){let t=n[0]-r[0],i=n[1]-r[1],a=n[2]-r[2],o=Math.hypot(t,i,a);if(o>1e-6){this.pitch=Math.max(-1.45,Math.min(1.45,Math.asin(i/o))),this.yaw=Math.atan2(t,a);let n=Math.max(1e-6,e.model.bounds.radius);this.zoom=Math.max(.05,Math.min(100,n*2.55/o))}}}}zoomAtCenter(e){if(this.resizeCanvasToDisplaySize(),this.is3dPage()){this.zoom=Math.max(.05,Math.min(100,this.zoom*e));return}let t=this.canvas.width/2,n=this.canvas.height/2;this.zoomAroundPoint(e,t,n)}zoomAroundPoint(e,t,n){let r=this.zoom,i=Math.max(.05,Math.min(64,r*e));if(i===r)return;let a=this.pagePointAtCanvasPoint(t,n,r,this.panX,this.panY);if(a){let e=this.pageMatrixAt(i,0,0);if(e){let[r,o]=Sr(e,a.x,a.y);this.panX=t-r,this.panY=n-o,this.zoom=i;return}}let o=i/r;this.panX=t-(t-this.panX)*o,this.panY=n-(n-this.panY)*o,this.zoom=i}onWheel(e){if(!this.doc)return;e.preventDefault(),this.resizeCanvasToDisplaySize();let t=this.canvas.getBoundingClientRect(),n=(e.clientX-t.left)*this.currentDpr,r=(e.clientY-t.top)*this.currentDpr,i=e.deltaMode===WheelEvent.DOM_DELTA_LINE?e.deltaY*16:e.deltaMode===WheelEvent.DOM_DELTA_PAGE?e.deltaY*Math.max(1,t.height):e.deltaY,a=Math.exp(-i*.0015);this.is3dPage()?this.zoom=Math.max(.05,Math.min(100,this.zoom*a)):this.zoomAroundPoint(a,n,r),this.requestRender()}onPointerDown(e){this.canvas.setPointerCapture?.(e.pointerId),this.is3dPage()&&e.preventDefault();let t=this.is3dPage()?e.button===2||e.shiftKey?`pan3d`:`rotate3d`:`pan2d`;this.drag={x:e.clientX,y:e.clientY,panX:this.panX,panY:this.panY,yaw:this.yaw,pitch:this.pitch,mode:t}}onPointerMove(e){if(!this.drag)return;let t=e.clientX-this.drag.x,n=e.clientY-this.drag.y;this.drag.mode===`rotate3d`?(this.yaw=this.drag.yaw+t*.008,this.pitch=Math.max(-1.45,Math.min(1.45,this.drag.pitch+n*.008))):(this.panX=this.drag.panX+t*this.currentDpr,this.panY=this.drag.panY+n*this.currentDpr),this.requestRender()}is3dPage(){return this.doc?.pageData[this.pageIndex]?.kind===`w3d-model`}pagePointAtCanvasPoint(e,t,n,r,i){let a=this.pageMatrixAt(n,r,i);if(!a)return;let o=a.a*a.d-a.b*a.c;if(!Number.isFinite(o)||Math.abs(o)<1e-12)return;let s=e-a.e,c=t-a.f;return{x:(a.d*s-a.c*c)/o,y:(-a.b*s+a.a*c)/o}}pageMatrixAt(e,t,n){let r=this.doc?.pageData[this.pageIndex];if(!r)return;let i=Math.max(1,this.canvas.width),a=Math.max(1,this.canvas.height);if(r.kind===`w2d-text`)return Ar(r,i,a,e,t,n);if(r.kind===`xps-fixed-page`)return kr({canvasWidth:i,canvasHeight:a,pageWidth:Math.max(1,r.width),pageHeight:Math.max(1,r.height),zoom:e,panX:t,panY:n});if(r.kind===`image`)return kr({canvasWidth:i,canvasHeight:a,pageWidth:Math.max(1,r.width),pageHeight:Math.max(1,r.height),zoom:e,panX:t,panY:n,margin:0})}setStatus(e,t=!1){this.status.textContent=e,this.status.classList.toggle(`dwfv-warn`,t)}};function Sa(e){let t=document.createElement(`button`);return t.type=`button`,t.textContent=e,t}function Ca(e){let t=document.createElement(`details`);t.open=e.children.length>0&&e.children.length<20;let n=document.createElement(`summary`);if(n.textContent=e.label||e.id,e.meshIds.length>0&&(n.title=`${e.meshIds.length} mesh(es)`),t.append(n),e.contentRefs.length>0){let n=document.createElement(`div`);n.className=`dwfv-tree-meta`,n.textContent=e.contentRefs.slice(0,3).join(`, `),t.append(n)}for(let n of e.children)t.append(Ca(n));return t}var wa=Object.defineProperty,Ta=(e,t,n)=>t in e?wa(e,t,{enumerable:!0,configurable:!0,writable:!0,value:n}):e[t]=n,U=(e,t,n)=>Ta(e,typeof t==`symbol`?t:t+``,n);async function Ea(e){if(e.buffer instanceof Uint8Array)return e.buffer;if(e.buffer instanceof ArrayBuffer)return new Uint8Array(e.buffer);if(e.file)return new Uint8Array(await e.file.arrayBuffer());throw Error(`CadLoadInput requires a File, ArrayBuffer, or Uint8Array.`)}function Da(e){return e.byteOffset===0&&e.byteLength===e.buffer.byteLength?e.buffer:e.slice().buffer}function Oa(e){let t=e.fileName??e.file?.name??``,n=t.lastIndexOf(`.`);return n>=0?t.slice(n+1).toLowerCase():``}function ka(e,t){let n=Oa(e);if(n===`dwg`)return`dwg`;if(n===`dxf`)return`dxf`;if(n===`dwfx`)return`dwfx`;if(n===`xps`)return`xps`;if(n===`dwf`)return`dwf`;if(t&&t.byteLength>=6){let e=Aa(t.slice(0,6));if(/^AC10/.test(e))return`dwg`;if(t[0]===80&&t[1]===75)return`dwfx`;let n=Aa(t.slice(0,Math.min(t.byteLength,2048))).toUpperCase();if(n.includes(`SECTION`)&&n.includes(`ENTITIES`))return`dxf`;if(n.includes(`DWF`))return`dwf`}return`unknown`}function Aa(e){return Array.from(e,e=>e>=32&&e<=126?String.fromCharCode(e):` `).join(``)}var ja=class{constructor(e=[]){U(this,`loaders`,[]);for(let t of e)this.register(t)}register(e){let t=this.loaders.findIndex(t=>t.id===e.id);return t>=0?this.loaders.splice(t,1,e):this.loaders.push(e),this}unregister(e){let t=this.loaders.findIndex(t=>t.id===e);return t>=0&&this.loaders.splice(t,1),this}list(){return[...this.loaders]}async detect(e){let t=await Ea(e),n=ka(e,t),r=this.loaders.find(r=>r.formats.includes(n)&&r.accepts(e,t));if(r)return{loader:r,bytes:t,format:n};let i=this.loaders.find(n=>n.accepts(e,t));if(i)return{loader:i,bytes:t,format:n};throw Error(`No CAD loader registered for ${n===`unknown`?`this file`:n.toUpperCase()}.`)}async load(e,t={}){let{loader:n,bytes:r}=await this.detect(e);return 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e?e.isVisible!==!1&&e.isFrozen!==!0:!0}function ss(e,t){if(!e)return;let n=t.foreground??`#ffffff`,r=es(e.trueColor);if(r)return r;if(typeof e.trueColor==`number`&&e.trueColor>=0&&e.trueColor<=16777215)return $o(e.trueColor,t.trueColorByteOrder??`rgb`);let i=es(e.color);if(i)return i;if(us(e.colorIndex))return Qo(e.colorIndex,n,n);if(typeof e.color==`number`){let r=Number(e.color);return Math.abs(r)<=257?Qo(r,n,n):$o(r,t.trueColorByteOrder??`rgb`)}if(typeof e.colorIndex==`number`)return Qo(e.colorIndex,n,n)}function cs(e){return fs(e.colorIndex,e.colorNumber,e.aci)===0?!0:e.trueColor===void 0&&e.color===0}function ls(e,t,n,r={}){if(!cs(e))return e;let i=ns(t,n,r);return{...e,color:i,trueColor:void 0,colorIndex:void 0,colorNumber:void 0}}function us(e){return typeof e==`number`&&Number.isFinite(e)&&Math.abs(Math.trunc(e))>=1&&Math.abs(Math.trunc(e))<=255}function ds(e,t){if(!(!e||!t))return 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n<=0?{r:0,g:0,b:0,a:0}:{r:(e.r*e.a+t.r*t.a*(1-e.a))/n,g:(e.g*e.a+t.g*t.a*(1-e.a))/n,b:(e.b*e.a+t.b*t.a*(1-e.a))/n,a:n}}function gs(e,t,n){let r=Math.max(0,Math.min(1,n));return{r:e.r+(t.r-e.r)*r,g:e.g+(t.g-e.g)*r,b:e.b+(t.b-e.b)*r,a:e.a}}function _s(e){let t=[e.r,e.g,e.b].map(e=>{let t=e/255;return t<=.03928?t/12.92:((t+.055)/1.055)**2.4});return .2126*t[0]+.7152*t[1]+.0722*t[2]}function vs(e,t){let n=_s(e),r=_s(t),i=Math.max(n,r),a=Math.min(n,r);return(i+.05)/(a+.05)}function ys(e){let t=bs(e.r),n=bs(e.g),r=bs(e.b);return e.a<.999?`rgba(${t}, ${n}, ${r}, ${xs(e.a)})`:`rgb(${t}, ${n}, ${r})`}function bs(e){return Math.max(0,Math.min(255,Math.round(e)))}function xs(e){return Math.round(e*1e3)/1e3}function Ss(e,t){return{a:e.a*t.a+e.c*t.b,b:e.b*t.a+e.d*t.b,c:e.a*t.c+e.c*t.d,d:e.b*t.c+e.d*t.d,e:e.a*t.e+e.c*t.f+e.e,f:e.b*t.e+e.d*t.f+e.f}}function Cs(e,t){return{a:1,b:0,c:0,d:1,e,f:t}}function ws(e){let t=Math.cos(e),n=Math.sin(e);return{a:t,b:n,c:-n,d:t,e:0,f:0}}function Ts(e,t=e){return{a:e,b:0,c:0,d:t,e:0,f:0}}function $(e,t){return{x:e.x*t.a+e.y*t.c+t.e,y:e.x*t.b+e.y*t.d+t.f,z:`z`in e?e.z:void 0}}function Es(e,t){if(e)return e.map(e=>({cmd:e.cmd,points:e.points.map(e=>$(e,t))}))}function Ds(e,t={x:0,y:0}){let n=e.insertionPoint??{x:0,y:0},r=e.scale,i=Number(typeof r==`object`&&r?r.x??1:e.scaleX??1),a=Number(typeof r==`object`&&r?r.y??i:e.scaleY??i),o=Number(e.rotation??0),s=Cs(n.x,n.y);return s=Ss(s,ws(Number.isFinite(o)?o:0)),s=Ss(s,Ts(Number.isFinite(i)?i:1,Number.isFinite(a)?a:1)),s=Ss(s,Cs(-t.x,-t.y)),s}function Os(e,t){let n={...e,raw:e.raw??e};if(e.startPoint&&(n.startPoint=$(e.startPoint,t)),e.endPoint&&(n.endPoint=$(e.endPoint,t)),e.center&&(n.center=$(e.center,t)),e.insertionPoint&&(n.insertionPoint=$(e.insertionPoint,t)),e.majorAxisEndPoint){let r=$({x:0,y:0},t),i=$(e.majorAxisEndPoint,t);n.majorAxisEndPoint={x:i.x-r.x,y:i.y-r.y,z:i.z}}e.vertices&&(n.vertices=e.vertices.map(e=>({...$(e,t),bulge:e.bulge,startWidth:e.startWidth,endWidth:e.endWidth}))),e.points&&(n.points=e.points.map(e=>$(e,t))),e.controlPoints&&(n.controlPoints=e.controlPoints.map(e=>$(e,t))),e.fitPoints&&(n.fitPoints=e.fitPoints.map(e=>$(e,t))),e.commands&&(n.commands=Es(e.commands,t)),e.loops&&(n.loops=e.loops.map(e=>({...e,vertices:e.vertices?.map(e=>$(e,t)),commands:Es(e.commands,t)})));let r=Math.sqrt(Math.abs(t.a*t.d-t.b*t.c));return typeof e.radius==`number`&&Number.isFinite(r)&&(n.radius=e.radius*r),n}var ks={background:`#0b1020`,foreground:`#ffffff`,showUnsupportedMarkers:!1,showImagePlaceholders:!0,showPageBounds:!0,minScale:1e-9,maxScale:1e9,wheelZoomFactor:1.14,trueColorByteOrder:`rgb`,maxInsertDepth:16,contrastMode:`adaptive`,minColorContrast:2.4,maxCurveSegments:96,spatialIndexCellCount:72,maxVerticesPerBatch:65536,textMinPixelHeight:4,maxVisibleTextLabels:2500,powerPreference:`high-performance`,antialias:!0,preserveDrawingBuffer:!1,enableSpatialIndex:!0},As=class{constructor(e,t={}){U(this,`canvas`),U(this,`ctx`),U(this,`opts`),U(this,`document`),U(this,`bounds`,q()),U(this,`view`,{centerX:0,centerY:0,scale:1}),U(this,`fitScale`,1),U(this,`dpr`,1),U(this,`isDragging`,!1),U(this,`lastPointer`),U(this,`resizeObserver`),U(this,`imageCache`,new Map),U(this,`stats`,{total:0,drawn:0,skipped:0,byType:{},unsupported:{},renderElapsedMs:0,backend:`canvas2d`}),U(this,`onStats`),U(this,`onViewChange`);let n=e.getContext(`2d`);if(!n)throw Error(`Canvas 2D context is not 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t=e.deltaY<0?this.opts.wheelZoomFactor:1/this.opts.wheelZoomFactor;this.zoom(t,{x:e.offsetX,y:e.offsetY})},{passive:!1}),this.canvas.addEventListener(`pointerdown`,e=>{this.canvas.setPointerCapture(e.pointerId),this.isDragging=!0,this.lastPointer={x:e.clientX,y:e.clientY},this.canvas.classList.add(`is-dragging`)}),this.canvas.addEventListener(`pointermove`,e=>{!this.isDragging||!this.lastPointer||(this.panByScreenDelta(e.clientX-this.lastPointer.x,e.clientY-this.lastPointer.y),this.lastPointer={x:e.clientX,y:e.clientY})});let e=e=>{e&&this.canvas.hasPointerCapture(e.pointerId)&&this.canvas.releasePointerCapture(e.pointerId),this.isDragging=!1,this.lastPointer=void 0,this.canvas.classList.remove(`is-dragging`)};this.canvas.addEventListener(`pointerup`,e),this.canvas.addEventListener(`pointercancel`,()=>e())}clearCanvas(){let e=this.ctx;e.save(),e.setTransform(this.dpr,0,0,this.dpr,0,0),e.clearRect(0,0,this.cssWidth,this.cssHeight),e.fillStyle=this.opts.background,e.fillRect(0,0,this.cssWidth,this.cssHeight),e.restore()}drawPageBounds(e){let t=this.ctx;t.save(),t.setTransform(this.dpr,0,0,this.dpr,0,0),t.strokeStyle=`rgba(148, 163, 184, 0.35)`,t.lineWidth=1,t.setLineDash([8,6]);for(let n of e.pages??[]){let e=this.worldToScreen({x:0,y:0}),r=this.worldToScreen({x:n.width,y:n.height});t.strokeRect(Math.min(e.x,r.x),Math.min(e.y,r.y),Math.abs(r.x-e.x),Math.abs(r.y-e.y))}t.restore()}drawEntityTracked(e,t){this.stats.total++;let n=String(e.type??`UNKNOWN`).toUpperCase();this.stats.byType[n]=(this.stats.byType[n]??0)+1;let r=this.lookupLayer(e.layer);if(e.isVisible===!1||!os(r)){this.stats.skipped++;return}this.drawEntity(e,n,t)}drawEntity(e,t,n){switch(e.kind??qa(t)){case`line`:return this.drawLine(e);case`circle`:return this.drawCircle(e);case`arc`:return this.drawArc(e);case`polyline`:return 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r=ns(e,this.document,{foreground:this.opts.foreground,background:this.opts.background,trueColorByteOrder:this.opts.trueColorByteOrder,contrastMode:this.opts.contrastMode,minColorContrast:this.opts.minColorContrast}),i=rs(e,this.document,{foreground:this.opts.foreground,background:this.opts.background,trueColorByteOrder:this.opts.trueColorByteOrder,contrastMode:this.opts.contrastMode,minColorContrast:this.opts.minColorContrast})??r;n.strokeStyle=r,n.fillStyle=t?i:r,n.globalAlpha=co(Number(e.opacity??1),0,1),n.lineCap=`round`,n.lineJoin=`round`;let a=typeof e.lineweight==`number`&&e.lineweight>0?e.lineweight:0;n.lineWidth=Math.max(1,Math.min(12,a>0?a/30:1)),n.beginPath()}finishStroke(){this.ctx.stroke(),this.ctx.restore(),this.stats.drawn++}finishFillStroke(e=!1){e&&this.ctx.fill(),this.ctx.stroke(),this.ctx.restore(),this.stats.drawn++}drawLine(e){let t=e.startPoint,n=e.endPoint;if(!Y(t)||!Y(n))return this.markSkipped(`LINE`);let r=this.worldToScreen(t),i=this.worldToScreen(n);this.beginStyledPath(e),this.ctx.moveTo(r.x,r.y),this.ctx.lineTo(i.x,i.y),this.finishStroke()}drawCircle(e){let t=e.center,n=Number(e.radius);if(!Y(t)||!Number.isFinite(n))return this.markSkipped(`CIRCLE`);let r=this.worldToScreen(t);this.beginStyledPath(e),this.ctx.arc(r.x,r.y,Math.abs(n)*this.view.scale,0,Math.PI*2),this.finishStroke()}drawArc(e){let t=e.center,n=Number(e.radius),r=Number(e.startAngle),i=Number(e.endAngle);if(!Y(t)||!Number.isFinite(n)||!Number.isFinite(r)||!Number.isFinite(i))return this.markSkipped(`ARC`);this.strokeWorldPolyline(e,io(X(t),n,r,i,!0),!1)}drawPolyline(e){let t=e.vertices??e.points;if(!Array.isArray(t)||t.length<2)return this.markSkipped(String(e.type));let n=!!e.isClosed||(Number(e.flag)&1)==1,r=[],i=n?t.length:t.length-1;for(let e=0;e<i;e++){let n=t[e],i=t[(e+1)%t.length];if(!Y(n)||!Y(i))continue;let a=oo(n,i,Number(n.bulge??0));r.length>0&&a.shift(),r.push(...a)}this.strokeWorldPolyline(e,r,n)}drawEllipse(e){let t=e.center,n=e.majorAxisEndPoint,r=Number(e.axisRatio??1);if(!Y(t)||!Y(n))return this.markSkipped(`ELLIPSE`);let i=ao(t,n,r,Number(e.startAngle??0),Number(e.endAngle??Math.PI*2)),a=Math.abs(Number(e.endAngle??Math.PI*2)-Number(e.startAngle??0))>=Math.PI*2-1e-6;this.strokeWorldPolyline(e,i,a)}drawPoint(e){let t=e.point??e.location??e.center??e.insertionPoint;if(!Y(t))return this.markSkipped(`POINT`);let n=this.worldToScreen(t);this.beginStyledPath(e),this.ctx.moveTo(n.x-3,n.y),this.ctx.lineTo(n.x+3,n.y),this.ctx.moveTo(n.x,n.y-3),this.ctx.lineTo(n.x,n.y+3),this.finishStroke()}drawText(e){let t=e.insertionPoint??e.startPoint??e.center,n=so(String(e.text??e.value??``)),r=Number(e.textHeight??e.height??1);if(!Y(t)||!n)return this.markSkipped(String(e.type));this.drawTextAt(e,t,n,r,Number(e.rotation??0))}drawInsert(e,t){let n=this.lookupBlock(e.blockName??e.name);if(n&&t<this.opts.maxInsertDepth){let r=Ds(e,n.basePoint??{x:0,y:0});for(let i of n.entities){let n=ls(i,e,this.document,{foreground:this.opts.foreground,background:this.opts.background,trueColorByteOrder:this.opts.trueColorByteOrder,contrastMode:this.opts.contrastMode,minColorContrast:this.opts.minColorContrast});this.drawEntityTracked(Os(n,r),t+1)}return}let r=e.insertionPoint;if(!Y(r))return this.markSkipped(`INSERT`);let i=this.worldToScreen(r);if(this.beginStyledPath(e),this.ctx.rect(i.x-5,i.y-5,10,10),this.finishStroke(),Array.isArray(e.attribs))for(let t of e.attribs)this.drawText(t)}drawSolid(e){let t=e.vertices??e.points;if(!Array.isArray(t)||t.length<3)return this.markSkipped(String(e.type));this.beginStyledPath(e,!0);let n=this.worldToScreen(t[0]);this.ctx.moveTo(n.x,n.y);for(let e of t.slice(1)){if(!Y(e))continue;let t=this.worldToScreen(e);this.ctx.lineTo(t.x,t.y)}this.ctx.closePath(),this.finishFillStroke(!0)}drawHatch(e){var t,n;let r=e.loops;if(!Array.isArray(r)||r.length===0)return this.markSkipped(`HATCH`);this.beginStyledPath(e,!0);for(let e of r)if((t=e.commands)!=null&&t.length)this.addPathCommands(e.commands);else if((n=e.vertices)!=null&&n.length){let t=this.worldToScreen(e.vertices[0]);this.ctx.moveTo(t.x,t.y);for(let t of e.vertices.slice(1)){let e=this.worldToScreen(t);this.ctx.lineTo(e.x,e.y)}this.ctx.closePath()}this.finishFillStroke(!!rs(e,this.document,{foreground:this.opts.foreground,background:this.opts.background,trueColorByteOrder:this.opts.trueColorByteOrder,contrastMode:this.opts.contrastMode,minColorContrast:this.opts.minColorContrast}))}drawSpline(e){var t;let n=(t=e.fitPoints)!=null&&t.length?e.fitPoints:e.controlPoints;if(!n||n.length<2)return this.markSkipped(`SPLINE`);this.strokeWorldPolyline(e,n,!!e.isClosed)}drawPath(e){var t;if(!((t=e.commands)!=null&&t.length))return this.markSkipped(String(e.type));this.beginStyledPath(e,!!e.fillColor),this.addPathCommands(e.commands),this.finishFillStroke(!!e.fillColor)}addPathCommands(e){for(let t of e)if(t.cmd===`M`){let e=this.worldToScreen(t.points[0]);this.ctx.moveTo(e.x,e.y)}else if(t.cmd===`L`){let e=this.worldToScreen(t.points[0]);this.ctx.lineTo(e.x,e.y)}else if(t.cmd===`C`){let[e,n,r]=t.points.map(e=>this.worldToScreen(e));this.ctx.bezierCurveTo(e.x,e.y,n.x,n.y,r.x,r.y)}else if(t.cmd===`Q`){let[e,n]=t.points.map(e=>this.worldToScreen(e));this.ctx.quadraticCurveTo(e.x,e.y,n.x,n.y)}else t.cmd===`Z`&&this.ctx.closePath()}drawImage(e){let t=e.insertionPoint;if(!Y(t))return this.markSkipped(String(e.type));let n=Number(e.width??32),r=Number(e.height??32),i=this.worldToScreen(t),a=this.worldToScreen({x:t.x+n,y:t.y-r}),o=Math.min(i.x,a.x),s=Math.min(i.y,a.y),c=Math.abs(a.x-i.x),l=Math.abs(a.y-i.y),u=e.imageDataUrl;if(u){let e=this.getImage(u);if(e.complete&&e.naturalWidth>0){this.ctx.save(),this.ctx.setTransform(this.dpr,0,0,this.dpr,0,0),this.ctx.drawImage(e,o,s,c,l),this.ctx.restore(),this.stats.drawn++;return}e.onload=()=>this.render()}if(!this.opts.showImagePlaceholders)return this.markSkipped(String(e.type));this.beginStyledPath(e),this.ctx.rect(o,s,c,l),this.ctx.moveTo(o,s),this.ctx.lineTo(o+c,s+l),this.ctx.moveTo(o+c,s),this.ctx.lineTo(o,s+l),this.finishStroke()}getImage(e){let t=this.imageCache.get(e);return t||(t=new Image,t.src=e,this.imageCache.set(e,t)),t}drawUnsupportedMarker(e){let t=this.entityAnchor(e);if(!t)return;let n=this.worldToScreen(t);this.beginStyledPath(e),this.ctx.moveTo(n.x-4,n.y-4),this.ctx.lineTo(n.x+4,n.y+4),this.ctx.moveTo(n.x+4,n.y-4),this.ctx.lineTo(n.x-4,n.y+4),this.finishStroke()}drawTextAt(e,t,n,r,i){let a=this.ctx,o=this.worldToScreen(t);a.save(),a.setTransform(this.dpr,0,0,this.dpr,0,0),a.translate(o.x,o.y),a.rotate(-i);let s=Math.max(4,Math.min(256,Math.abs(r)*this.view.scale));a.font=`${s}px ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif`,a.fillStyle=ns(e,this.document,{foreground:this.opts.foreground,background:this.opts.background,trueColorByteOrder:this.opts.trueColorByteOrder,contrastMode:this.opts.contrastMode,minColorContrast:this.opts.minColorContrast}),a.globalAlpha=co(Number(e.opacity??1),0,1),a.textBaseline=`alphabetic`;for(let[e,t]of n.split(/\r?\n/g).entries())a.fillText(t,0,e*s*1.22);a.restore(),this.stats.drawn++}strokeWorldPolyline(e,t,n){let r=t.filter(Y);if(r.length<2)return this.markSkipped(String(e.type));this.beginStyledPath(e);let i=this.worldToScreen(r[0]);this.ctx.moveTo(i.x,i.y);for(let e of r.slice(1)){let t=this.worldToScreen(e);this.ctx.lineTo(t.x,t.y)}n&&this.ctx.closePath(),this.finishStroke()}markSkipped(e){this.stats.skipped++,this.stats.unsupported[e]=this.stats.unsupported[e]??0}entityAnchor(e){for(let t of[`startPoint`,`insertionPoint`,`center`,`point`,`location`]){let n=e[t];if(Y(n))return X(n)}if(Array.isArray(e.vertices)&&Y(e.vertices[0]))return X(e.vertices[0]);if(Array.isArray(e.commands)&&e.commands.length){let t=e.commands.find(e=>e.points.length>0);if(t)return X(t.points[0])}}computeBounds(e){var t;let n=q();if((t=e.pages)!=null&&t.length)for(let t of e.pages)J(n,{x:0,y:0}),J(n,{x:t.width,y:t.height});for(let t of e.entities)this.includeEntityBounds(n,t,0);return no(n)}includeEntityBounds(e,t,n){let r=String(t.type??``).toUpperCase(),i=t.kind??qa(r);if(i===`insert`){let r=this.lookupBlock(t.blockName??t.name);if(r&&n<this.opts.maxInsertDepth){let i=Ds(t,r.basePoint??{x:0,y:0});for(let t of r.entities)this.includeEntityBounds(e,Os(t,i),n+1);return}}if(i===`line`)Y(t.startPoint)&&J(e,t.startPoint),Y(t.endPoint)&&J(e,t.endPoint);else if(i===`circle`||i===`arc`)Y(t.center)&&Number.isFinite(t.radius)&&to(e,t.center,Number(t.radius));else if(i===`polyline`||i===`solid`||i===`spline`)for(let n of[...t.vertices??[],...t.points??[],...t.controlPoints??[],...t.fitPoints??[]])Y(n)&&J(e,n);else if(i===`ellipse`)Y(t.center)&&Y(t.majorAxisEndPoint)&&ao(t.center,t.majorAxisEndPoint,Number(t.axisRatio??1),Number(t.startAngle??0),Number(t.endAngle??Math.PI*2)).forEach(t=>J(e,t));else if(i===`path`)for(let n of t.commands??[])for(let t of n.points)J(e,t);else if(i===`hatch`)for(let n of t.loops??[]){for(let t of n.vertices??[])J(e,t);for(let t of n.commands??[])for(let n of t.points)J(e,n)}else{let n=this.entityAnchor(t);n&&J(e,n)}}lookupLayer(e){if(!(!this.document||!e))return this.document.layers[e]??this.document.layers[e.toLowerCase()]??Object.values(this.document.layers).find(t=>t.name.toLowerCase()===e.toLowerCase())}lookupBlock(e){if(!(!this.document||!e))return this.document.blocks[e]??this.document.blocks[e.toLowerCase()]??Object.values(this.document.blocks).find(t=>t.name.toLowerCase()===e.toLowerCase())}clampScale(e){return Math.min(this.opts.maxScale,Math.max(this.opts.minScale,e))}emitViewChange(){var e;(e=this.onViewChange)==null||e.call(this,{view:this.getViewState(),fitScale:this.fitScale,zoomRatio:this.getZoomRatio(),zoomPercent:this.getZoomPercent(),bounds:this.getBounds()})}};function js(e){return{total:e.total,drawn:e.drawn,skipped:e.skipped,byType:{...e.byType},unsupported:{...e.unsupported},renderElapsedMs:e.renderElapsedMs,backend:e.backend,primitiveCount:e.primitiveCount,visiblePrimitiveCount:e.visiblePrimitiveCount,culledPrimitiveCount:e.culledPrimitiveCount,gpuMemoryBytes:e.gpuMemoryBytes,buildElapsedMs:e.buildElapsedMs}}var Ms={background:`#0b1020`,foreground:`#ffffff`,showUnsupportedMarkers:!1,showImagePlaceholders:!0,showPageBounds:!0,minScale:1e-9,maxScale:1e9,wheelZoomFactor:1.14,trueColorByteOrder:`rgb`,maxInsertDepth:16,contrastMode:`adaptive`,minColorContrast:2.4,maxCurveSegments:96,spatialIndexCellCount:72,maxVerticesPerBatch:65536,textMinPixelHeight:4,maxVisibleTextLabels:2500,powerPreference:`high-performance`,antialias:!0,preserveDrawingBuffer:!1,enableSpatialIndex:!0},Ns=class{constructor(e,t={}){U(this,`canvas`),U(this,`backend`,`webgl`),U(this,`gl`),U(this,`program`),U(this,`eventController`,new AbortController),U(this,`imageCache`,new Map),U(this,`opts`),U(this,`document`),U(this,`bounds`,q()),U(this,`view`,{centerX:0,centerY:0,scale:1}),U(this,`fitScale`,1),U(this,`dpr`,1),U(this,`isDragging`,!1),U(this,`lastPointer`),U(this,`resizeObserver`),U(this,`overlayCanvas`),U(this,`overlayCtx`),U(this,`scene`),U(this,`stats`,{total:0,drawn:0,skipped:0,byType:{},unsupported:{},renderElapsedMs:0,backend:`webgl`,primitiveCount:0,visiblePrimitiveCount:0,culledPrimitiveCount:0,gpuMemoryBytes:0,buildElapsedMs:0}),U(this,`rafHandle`,0),U(this,`onStats`),U(this,`onViewChange`);let n=Fs(e,t);if(!n)throw Error(`WebGL is not available. Use renderer: "canvas2d" to force the Canvas2D fallback.`);this.canvas=e,this.gl=n,this.program=Is(n),this.opts={...Ms,...t},this.canvas.classList.add(`cad-viewer-canvas`,`cad-viewer-webgl-canvas`),this.createOverlayCanvas(),this.bindEvents(),typeof ResizeObserver<`u`&&(this.resizeObserver=new ResizeObserver(()=>this.resize()),this.resizeObserver.observe(e)),this.resize()}static isSupported(){return Ps()}destroy(){var e,t;this.eventController.abort(),(e=this.resizeObserver)==null||e.disconnect(),this.cancelScheduledRender(),this.disposeScene(),(t=this.overlayCanvas)==null||t.remove()}clear(){this.document=void 0,this.bounds=q(),this.view={centerX:0,centerY:0,scale:1},this.fitScale=1,this.disposeScene(),this.render(),this.emitViewChange()}setDocument(e){this.document=e,this.bounds=Ks(e,this.opts),this.disposeScene();let t=Bs(e,this.opts,this.bounds);this.scene=Rs(this.gl,t),this.stats=$s(this.scene,0),this.fitToView()}getDocument(){return this.document}setOptions(e){let t=Qs(this.opts,e);if(this.opts={...this.opts,...e},t&&this.document){this.setDocument(this.document);return}this.render(),this.emitViewChange()}getOptions(){return{...this.opts}}fitToView(e=.92){if(!eo(this.bounds)){this.view={centerX:0,centerY:0,scale:1},this.fitScale=1,this.render(),this.emitViewChange();return}let t=Math.max(1,this.cssWidth),n=Math.max(1,this.cssHeight),r=Math.max(this.bounds.maxX-this.bounds.minX,1e-9),i=Math.max(this.bounds.maxY-this.bounds.minY,1e-9),a=this.clampScale(Math.min(t/r,n/i)*e);this.fitScale=a,this.view={centerX:(this.bounds.minX+this.bounds.maxX)/2,centerY:(this.bounds.minY+this.bounds.maxY)/2,scale:a},this.render(),this.emitViewChange()}resize(){this.dpr=Math.max(1,window.devicePixelRatio||1);let e=Math.max(1,Math.floor(this.cssWidth*this.dpr)),t=Math.max(1,Math.floor(this.cssHeight*this.dpr));(this.canvas.width!==e||this.canvas.height!==t)&&(this.canvas.width=e,this.canvas.height=t),this.resizeOverlay(e,t),this.render(),this.emitViewChange()}zoom(e,t){if(!Number.isFinite(e)||e<=0)return;let n=t??{x:this.cssWidth/2,y:this.cssHeight/2},r=this.screenToWorld(n);this.view.scale=this.clampScale(this.view.scale*e);let i=this.screenToWorld(n);this.view.centerX+=r.x-i.x,this.view.centerY+=r.y-i.y,this.scheduleRender(),this.emitViewChange()}zoomIn(){this.zoom(this.opts.wheelZoomFactor)}zoomOut(){this.zoom(1/this.opts.wheelZoomFactor)}panByScreenDelta(e,t){!Number.isFinite(e)||!Number.isFinite(t)||(this.view.centerX-=e/this.view.scale,this.view.centerY+=t/this.view.scale,this.scheduleRender(),this.emitViewChange())}setViewState(e){if(![e.centerX,e.centerY,e.scale].every(Number.isFinite))throw Error(`Invalid view state.`);this.view={...e,scale:this.clampScale(e.scale)},this.render(),this.emitViewChange()}getViewState(){return{...this.view}}getBounds(){return{...this.bounds}}getStats(){return ec(this.stats)}getZoomRatio(){return Math.abs(this.fitScale)<1e-12?1:this.view.scale/this.fitScale}getZoomPercent(){return this.getZoomRatio()*100}worldToScreen(e){return{x:this.cssWidth/2+(e.x-this.view.centerX)*this.view.scale,y:this.cssHeight/2-(e.y-this.view.centerY)*this.view.scale}}screenToWorld(e){return{x:this.view.centerX+(e.x-this.cssWidth/2)/this.view.scale,y:this.view.centerY-(e.y-this.cssHeight/2)/this.view.scale}}render(){return this.cancelScheduledRender(),this.renderNow()}renderNow(){var e;let t=performance.now(),n=this.gl;n.viewport(0,0,this.canvas.width,this.canvas.height);let r=tc(this.opts.background,[11,16,32,255]);n.clearColor(r[0]/255,r[1]/255,r[2]/255,r[3]/255),n.clear(n.COLOR_BUFFER_BIT),n.disable(n.DEPTH_TEST),n.enable(n.BLEND),n.blendFunc(n.SRC_ALPHA,n.ONE_MINUS_SRC_ALPHA);let i=0,a=0,o=this.scene,s=this.visibleWorldBounds();if(o){n.useProgram(this.program.program),n.uniform2f(this.program.uViewCenter,this.view.centerX-o.origin.x,this.view.centerY-o.origin.y),n.uniform1f(this.program.uScale,this.view.scale*this.dpr),n.uniform2f(this.program.uViewport,this.canvas.width,this.canvas.height),n.uniform1f(this.program.uPointSize,Math.max(2,Math.min(12,4*this.dpr)));let e=this.drawBatches(o.lineBatches,n.LINES,s);i+=e.visible,a+=e.culled;let t=this.drawBatches(o.triangleBatches,n.TRIANGLES,s);i+=t.visible,a+=t.culled;let r=this.drawBatches(o.pointBatches,n.POINTS,s);i+=r.visible,a+=r.culled}this.renderOverlay(s);let c=performance.now()-t;return this.stats=o?{...o.stats,renderElapsedMs:c,backend:`webgl`,primitiveCount:o.primitiveCount,visiblePrimitiveCount:i,culledPrimitiveCount:a,gpuMemoryBytes:o.gpuMemoryBytes,buildElapsedMs:o.buildElapsedMs}:{total:0,drawn:0,skipped:0,byType:{},unsupported:{},renderElapsedMs:c,backend:`webgl`,primitiveCount:0,visiblePrimitiveCount:0,culledPrimitiveCount:0,gpuMemoryBytes:0,buildElapsedMs:0},(e=this.onStats)==null||e.call(this,this.getStats()),this.getStats()}drawBatches(e,t,n){let r=this.gl,i=0,a=0;for(let o of e){if(!Zs(o.bounds,n)){a+=o.primitiveCount;continue}r.bindBuffer(r.ARRAY_BUFFER,o.positionBuffer),r.enableVertexAttribArray(this.program.aPosition),r.vertexAttribPointer(this.program.aPosition,2,r.FLOAT,!1,0,0),r.bindBuffer(r.ARRAY_BUFFER,o.colorBuffer),r.enableVertexAttribArray(this.program.aColor),r.vertexAttribPointer(this.program.aColor,4,r.UNSIGNED_BYTE,!0,0,0),r.drawArrays(t,0,o.vertexCount),i+=o.primitiveCount}return{visible:i,culled:a}}scheduleRender(){this.rafHandle||=window.requestAnimationFrame(()=>{this.rafHandle=0,this.renderNow()})}cancelScheduledRender(){this.rafHandle&&=(window.cancelAnimationFrame(this.rafHandle),0)}renderOverlay(e){var t;let n=this.overlayCtx,r=this.overlayCanvas;!n||!r||(n.save(),n.setTransform(this.dpr,0,0,this.dpr,0,0),n.clearRect(0,0,this.cssWidth,this.cssHeight),this.opts.showPageBounds&&(t=this.document?.pages)!=null&&t.length&&this.drawPageBoundsOverlay(n),this.scene&&(this.drawImagesOverlay(n,this.scene.imageItems,e),this.drawTextOverlay(n,this.scene.textItems,e)),n.restore())}drawPageBoundsOverlay(e){var t;if((t=this.document?.pages)!=null&&t.length){e.save(),e.strokeStyle=`rgba(148, 163, 184, 0.34)`,e.lineWidth=1,e.setLineDash([8,6]);for(let t of this.document.pages){let n=this.worldToScreen({x:0,y:0}),r=this.worldToScreen({x:t.width,y:t.height});e.strokeRect(Math.min(n.x,r.x),Math.min(n.y,r.y),Math.abs(r.x-n.x),Math.abs(r.y-n.y))}e.restore()}}drawTextOverlay(e,t,n){let r=this.opts.maxVisibleTextLabels,i=0;for(let a of t){if(i>=r)break;if(!Zs(a.bounds,n))continue;let t=Math.abs(a.height)*this.view.scale;if(t<this.opts.textMinPixelHeight)continue;let o=this.worldToScreen(a.point);if(o.x<-512||o.y<-512||o.x>this.cssWidth+512||o.y>this.cssHeight+512)continue;e.save(),e.translate(o.x,o.y),e.rotate(-a.rotation);let s=Math.max(4,Math.min(256,t));e.font=`${s}px ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif`,e.fillStyle=a.color,e.globalAlpha=a.opacity,e.textBaseline=`alphabetic`;for(let[t,n]of a.text.split(/\r?\n/g).entries())e.fillText(n,0,t*s*1.22);e.restore(),i++}}drawImagesOverlay(e,t,n){for(let r of t){if(!Zs(r.bounds,n))continue;let t=this.worldToScreen(r.point),i=this.worldToScreen({x:r.point.x+r.width,y:r.point.y-r.height}),a=Math.min(t.x,i.x),o=Math.min(t.y,i.y),s=Math.abs(i.x-t.x),c=Math.abs(i.y-t.y);if(!(s<1||c<1)){if(r.source){let t=this.getImage(r.source);if(t.complete&&t.naturalWidth>0){e.save(),e.globalAlpha=r.opacity,e.drawImage(t,a,o,s,c),e.restore();continue}t.onload=()=>this.scheduleRender()}this.opts.showImagePlaceholders&&(e.save(),e.strokeStyle=r.color,e.globalAlpha=r.opacity,e.lineWidth=1,e.strokeRect(a,o,s,c),e.beginPath(),e.moveTo(a,o),e.lineTo(a+s,o+c),e.moveTo(a+s,o),e.lineTo(a,o+c),e.stroke(),e.restore())}}}getImage(e){let t=this.imageCache.get(e);return t||(t=new Image,t.src=e,this.imageCache.set(e,t)),t}createOverlayCanvas(){let e=this.canvas.parentElement;if(!e||typeof document>`u`)return;window.getComputedStyle(e).position===`static`&&(e.style.position=`relative`);let t=document.createElement(`canvas`);t.className=`cad-viewer-text-overlay`,t.setAttribute(`aria-hidden`,`true`),t.style.position=`absolute`,t.style.inset=`0`,t.style.width=`100%`,t.style.height=`100%`,t.style.pointerEvents=`none`,t.style.zIndex=`1`;let n=t.getContext(`2d`);n&&(e.appendChild(t),this.overlayCanvas=t,this.overlayCtx=n)}resizeOverlay(e,t){this.overlayCanvas&&(this.overlayCanvas.width!==e||this.overlayCanvas.height!==t)&&(this.overlayCanvas.width=e,this.overlayCanvas.height=t)}bindEvents(){let e=this.eventController.signal;this.canvas.addEventListener(`wheel`,e=>{e.preventDefault();let t=e.deltaY<0?this.opts.wheelZoomFactor:1/this.opts.wheelZoomFactor;this.zoom(t,{x:e.offsetX,y:e.offsetY})},{passive:!1,signal:e}),this.canvas.addEventListener(`pointerdown`,e=>{this.canvas.setPointerCapture(e.pointerId),this.isDragging=!0,this.lastPointer={x:e.clientX,y:e.clientY},this.canvas.classList.add(`is-dragging`)},{signal:e}),this.canvas.addEventListener(`pointermove`,e=>{!this.isDragging||!this.lastPointer||(this.panByScreenDelta(e.clientX-this.lastPointer.x,e.clientY-this.lastPointer.y),this.lastPointer={x:e.clientX,y:e.clientY})},{signal:e});let t=e=>{e&&this.canvas.hasPointerCapture(e.pointerId)&&this.canvas.releasePointerCapture(e.pointerId),this.isDragging=!1,this.lastPointer=void 0,this.canvas.classList.remove(`is-dragging`)};this.canvas.addEventListener(`pointerup`,t,{signal:e}),this.canvas.addEventListener(`pointercancel`,()=>t(),{signal:e}),this.canvas.addEventListener(`webglcontextlost`,e=>{e.preventDefault(),this.cancelScheduledRender()},{signal:e})}visibleWorldBounds(){let e=this.cssWidth/Math.max(this.view.scale,1e-12)/2,t=this.cssHeight/Math.max(this.view.scale,1e-12)/2;return{minX:this.view.centerX-e,maxX:this.view.centerX+e,minY:this.view.centerY-t,maxY:this.view.centerY+t}}get cssWidth(){return this.canvas.clientWidth||1}get cssHeight(){return this.canvas.clientHeight||1}clampScale(e){return Math.min(this.opts.maxScale,Math.max(this.opts.minScale,e))}disposeScene(){if(!this.scene)return;let e=this.gl;for(let t of[...this.scene.lineBatches,...this.scene.triangleBatches,...this.scene.pointBatches])e.deleteBuffer(t.positionBuffer),e.deleteBuffer(t.colorBuffer);this.scene=void 0}emitViewChange(){var e;(e=this.onViewChange)==null||e.call(this,{view:this.getViewState(),fitScale:this.fitScale,zoomRatio:this.getZoomRatio(),zoomPercent:this.getZoomPercent(),bounds:this.getBounds()})}};function Ps(){if(typeof document>`u`)return!1;let e=document.createElement(`canvas`);return!!(e.getContext(`webgl2`)??e.getContext(`webgl`)??e.getContext(`experimental-webgl`))}function Fs(e,t){let n={alpha:!1,antialias:t.antialias??!0,depth:!1,stencil:!1,preserveDrawingBuffer:t.preserveDrawingBuffer??!1,powerPreference:t.powerPreference??`high-performance`};return e.getContext(`webgl2`,n)??e.getContext(`webgl`,n)??e.getContext(`experimental-webgl`,n)??void 0}function Is(e){let t=Ls(e,e.VERTEX_SHADER,`
|
||
attribute vec2 a_position;
|
||
attribute vec4 a_color;
|
||
uniform vec2 u_viewCenter;
|
||
uniform float u_scale;
|
||
uniform vec2 u_viewport;
|
||
uniform float u_pointSize;
|
||
varying vec4 v_color;
|
||
void main() {
|
||
vec2 screen = vec2(
|
||
u_viewport.x * 0.5 + (a_position.x - u_viewCenter.x) * u_scale,
|
||
u_viewport.y * 0.5 - (a_position.y - u_viewCenter.y) * u_scale
|
||
);
|
||
vec2 clip = vec2(screen.x / u_viewport.x * 2.0 - 1.0, 1.0 - screen.y / u_viewport.y * 2.0);
|
||
gl_Position = vec4(clip, 0.0, 1.0);
|
||
gl_PointSize = u_pointSize;
|
||
v_color = a_color;
|
||
}
|
||
`),n=Ls(e,e.FRAGMENT_SHADER,`
|
||
precision mediump float;
|
||
varying vec4 v_color;
|
||
void main() {
|
||
gl_FragColor = v_color;
|
||
}
|
||
`),r=e.createProgram();if(!r)throw Error(`Failed to create WebGL program.`);if(e.attachShader(r,t),e.attachShader(r,n),e.linkProgram(r),!e.getProgramParameter(r,e.LINK_STATUS)){let t=e.getProgramInfoLog(r)??`Unknown WebGL program link error.`;throw e.deleteProgram(r),Error(t)}e.deleteShader(t),e.deleteShader(n);let i=e.getUniformLocation(r,`u_viewCenter`),a=e.getUniformLocation(r,`u_scale`),o=e.getUniformLocation(r,`u_viewport`),s=e.getUniformLocation(r,`u_pointSize`);if(!i||!a||!o||!s)throw Error(`Failed to resolve WebGL shader uniforms.`);return{program:r,aPosition:e.getAttribLocation(r,`a_position`),aColor:e.getAttribLocation(r,`a_color`),uViewCenter:i,uScale:a,uViewport:o,uPointSize:s}}function Ls(e,t,n){let r=e.createShader(t);if(!r)throw Error(`Failed to create WebGL shader.`);if(e.shaderSource(r,n),e.compileShader(r),!e.getShaderParameter(r,e.COMPILE_STATUS)){let t=e.getShaderInfoLog(r)??`Unknown WebGL shader compile error.`;throw e.deleteShader(r),Error(t)}return r}function Rs(e,t){let n=0,r=t=>t.map(t=>{let r=zs(e,t.positions),i=zs(e,t.colors),a=t.positions.byteLength+t.colors.byteLength;return n+=a,{positionBuffer:r,colorBuffer:i,vertexCount:t.positions.length/2,primitiveCount:t.primitiveCount,bounds:t.bounds,gpuBytes:a}}),i=r(t.lineBatches),a=r(t.triangleBatches),o=r(t.pointBatches);return{origin:t.origin,lineBatches:i,triangleBatches:a,pointBatches:o,textItems:t.textItems,imageItems:t.imageItems,stats:t.stats,primitiveCount:t.primitiveCount,gpuMemoryBytes:n,buildElapsedMs:t.buildElapsedMs}}function zs(e,t){let n=e.createBuffer();if(!n)throw Error(`Failed to create WebGL buffer.`);return e.bindBuffer(e.ARRAY_BUFFER,n),e.bufferData(e.ARRAY_BUFFER,t,e.STATIC_DRAW),n}function Bs(e,t,n){let r=performance.now(),i=new Vs(e,t,n,eo(n)?{x:(n.minX+n.maxX)/2,y:(n.minY+n.maxY)/2}:{x:0,y:0});for(let t of e.entities)i.addEntityTracked(t,0);let a=i.finalize();return a.buildElapsedMs=performance.now()-r,a}var Vs=class{constructor(e,t,n,r){U(this,`lineBuckets`,new Map),U(this,`triangleBuckets`,new Map),U(this,`pointBuckets`,new Map),U(this,`textItems`,[]),U(this,`imageItems`,[]),U(this,`stats`,{total:0,drawn:0,skipped:0,byType:{},unsupported:{},backend:`webgl`,primitiveCount:0,visiblePrimitiveCount:0,culledPrimitiveCount:0,gpuMemoryBytes:0,buildElapsedMs:0}),U(this,`tileSize`),U(this,`maxVerticesPerBatch`),U(this,`primitiveCount`,0),this.document=e,this.opts=t,this.bounds=n,this.origin=r;let i=eo(n)?Math.max(n.maxX-n.minX,n.maxY-n.minY,1e-9):1;this.tileSize=t.enableSpatialIndex?i/Math.max(8,t.spatialIndexCellCount):1/0,this.maxVerticesPerBatch=Math.max(4096,Math.floor(t.maxVerticesPerBatch))}addEntityTracked(e,t){this.stats.total++;let n=String(e.type??`UNKNOWN`).toUpperCase();this.stats.byType[n]=(this.stats.byType[n]??0)+1;let r=this.lookupLayer(e.layer);if(e.isVisible===!1||!os(r)){this.stats.skipped++;return}this.addEntity(e,n,t)}finalize(){let e=Ws(this.lineBuckets,this.maxVerticesPerBatch),t=Ws(this.triangleBuckets,this.maxVerticesPerBatch),n=Ws(this.pointBuckets,this.maxVerticesPerBatch);return this.stats.primitiveCount=this.primitiveCount,{origin:this.origin,lineBatches:e,triangleBatches:t,pointBatches:n,textItems:this.textItems,imageItems:this.imageItems,stats:this.stats,primitiveCount:this.primitiveCount,buildElapsedMs:0}}addEntity(e,t,n){switch(e.kind??qa(t)){case`line`:return this.addLineEntity(e);case`circle`:return this.addCircleEntity(e);case`arc`:return this.addArcEntity(e);case`polyline`:return this.addPolylineEntity(e);case`ellipse`:return this.addEllipseEntity(e);case`text`:return this.addTextEntity(e);case`point`:return this.addPointEntity(e);case`insert`:return this.addInsertEntity(e,n);case`solid`:return this.addSolidEntity(e);case`hatch`:return this.addHatchEntity(e);case`spline`:return this.addSplineEntity(e);case`path`:return this.addPathEntity(e);case`image`:return this.addImageEntity(e);case`viewport`:return this.markSkipped(t);default:this.stats.unsupported[t]=(this.stats.unsupported[t]??0)+1,this.stats.skipped++,this.opts.showUnsupportedMarkers&&this.addUnsupportedMarker(e)}}addLineEntity(e){if(!Y(e.startPoint)||!Y(e.endPoint))return this.markSkipped(`LINE`);this.addSegment(e.startPoint,e.endPoint,this.strokeBytes(e)),this.stats.drawn++}addCircleEntity(e){let t=e.center,n=Number(e.radius);if(!Y(t)||!Number.isFinite(n))return this.markSkipped(`CIRCLE`);let r=Math.max(16,Math.min(this.opts.maxCurveSegments,Math.ceil(Math.sqrt(Math.abs(n))*12))),i=io(t,n,0,Math.PI*2,!0,r);this.addPolyline(i,!0,this.strokeBytes(e)),this.stats.drawn++}addArcEntity(e){let t=e.center,n=Number(e.radius),r=Number(e.startAngle),i=Number(e.endAngle);if(!Y(t)||!Number.isFinite(n)||!Number.isFinite(r)||!Number.isFinite(i))return this.markSkipped(`ARC`);this.addPolyline(io(t,n,r,i,!0,this.opts.maxCurveSegments),!1,this.strokeBytes(e)),this.stats.drawn++}addPolylineEntity(e){let t=e.vertices??e.points;if(!Array.isArray(t)||t.length<2)return this.markSkipped(String(e.type));let n=!!e.isClosed||(Number(e.flag)&1)==1,r=[],i=n?t.length:t.length-1;for(let e=0;e<i;e++){let n=t[e],i=t[(e+1)%t.length];if(!Y(n)||!Y(i))continue;let a=oo(n,i,Number(n.bulge??0),Math.max(4,Math.min(24,this.opts.maxCurveSegments/4)));r.length>0&&a.shift(),r.push(...a)}if(r.length<2)return this.markSkipped(String(e.type));this.addPolyline(r,n,this.strokeBytes(e)),this.stats.drawn++}addEllipseEntity(e){if(!Y(e.center)||!Y(e.majorAxisEndPoint))return this.markSkipped(`ELLIPSE`);let t=ao(e.center,e.majorAxisEndPoint,Number(e.axisRatio??1),Number(e.startAngle??0),Number(e.endAngle??Math.PI*2),this.opts.maxCurveSegments),n=Math.abs(Number(e.endAngle??Math.PI*2)-Number(e.startAngle??0))>=Math.PI*2-1e-6;this.addPolyline(t,n,this.strokeBytes(e)),this.stats.drawn++}addTextEntity(e){let t=e.insertionPoint??e.startPoint??e.center,n=so(String(e.text??e.value??``)),r=Number(e.textHeight??e.height??1);if(!Y(t)||!n||!Number.isFinite(r))return this.markSkipped(String(e.type));let i=X(t),a=Math.max(1,n.split(/\r?\n/g).reduce((e,t)=>Math.max(e,t.length),0))*Math.abs(r)*.62,o=Math.max(1,n.split(/\r?\n/g).length)*Math.abs(r)*1.22;this.textItems.push({point:i,text:n,height:r,rotation:Number(e.rotation??0),color:ns(e,this.document,this.colorOptions()),opacity:co(Number(e.opacity??1),0,1),bounds:{minX:i.x-a*.1,minY:i.y-o,maxX:i.x+a,maxY:i.y+o}}),this.stats.drawn++}addPointEntity(e){let t=e.point??e.location??e.center??e.insertionPoint;if(!Y(t))return this.markSkipped(`POINT`);this.addPoint(t,this.strokeBytes(e)),this.stats.drawn++}addInsertEntity(e,t){let n=this.lookupBlock(e.blockName??e.name);if(n&&t<this.opts.maxInsertDepth){let r=Ds(e,n.basePoint??{x:0,y:0});for(let i of n.entities){let n=ls(i,e,this.document,this.colorOptions());this.addEntityTracked(Os(n,r),t+1)}return}let r=e.insertionPoint;if(!Y(r))return this.markSkipped(`INSERT`);if(this.addPoint(r,this.strokeBytes(e)),Array.isArray(e.attribs))for(let t of e.attribs)this.addTextEntity(t);this.stats.drawn++}addSolidEntity(e){let t=e.vertices??e.points;if(!Array.isArray(t)||t.length<3)return this.markSkipped(String(e.type));let n=t.filter(Y).map(X);if(n.length<3)return this.markSkipped(String(e.type));let r=this.fillBytes(e)??this.strokeBytes(e);this.addTriangleFan(n,r),this.addPolyline(n,!0,this.strokeBytes(e)),this.stats.drawn++}addHatchEntity(e){var t;let n=e.loops;if(!Array.isArray(n)||n.length===0)return this.markSkipped(`HATCH`);let r=this.strokeBytes(e),i=this.fillBytes(e),a=!1;for(let e of n){let n=(t=e.commands)!=null&&t.length?qs(e.commands,this.opts.maxCurveSegments):(e.vertices??[]).filter(Y).map(X);n.length<2||(this.addPolyline(n,!0,r),i&&n.length>=3&&this.addTriangleFan(n,i),a=!0)}if(!a)return this.markSkipped(`HATCH`);this.stats.drawn++}addSplineEntity(e){var t;let n=(t=e.fitPoints)!=null&&t.length?e.fitPoints:e.controlPoints;if(!n||n.length<2)return this.markSkipped(`SPLINE`);this.addPolyline(n.filter(Y).map(X),!!e.isClosed,this.strokeBytes(e)),this.stats.drawn++}addPathEntity(e){var t;if(!((t=e.commands)!=null&&t.length))return this.markSkipped(String(e.type));let n=qs(e.commands,this.opts.maxCurveSegments);if(n.length<2)return this.markSkipped(String(e.type));this.addPolyline(n,!1,this.strokeBytes(e));let r=this.fillBytes(e);r&&n.length>=3&&this.addTriangleFan(n,r),this.stats.drawn++}addImageEntity(e){let t=e.insertionPoint;if(!Y(t))return this.markSkipped(String(e.type));let n=Number(e.width??32),r=Number(e.height??32);if(!Number.isFinite(n)||!Number.isFinite(r))return this.markSkipped(String(e.type));let i=X(t),a=Ys([i,{x:i.x+n,y:i.y-r}]);this.imageItems.push({point:i,width:n,height:r,source:e.imageDataUrl??e.imageSource,color:ns(e,this.document,this.colorOptions()),opacity:co(Number(e.opacity??1),0,1),bounds:a}),this.stats.drawn++}addUnsupportedMarker(e){let t=Js(e);t&&this.addPoint(t,this.strokeBytes(e))}addPolyline(e,t,n){let r=e.filter(Y).map(X);if(!(r.length<2)){for(let e=0;e<r.length-1;e++)this.addSegment(r[e],r[e+1],n);t&&this.addSegment(r[r.length-1],r[0],n)}}addSegment(e,t,n){if(!Y(e)||!Y(t)||Math.hypot(e.x-t.x,e.y-t.y)<=1e-14)return;let r=this.batchFor(this.lineBuckets,Ys([e,t]));Us(r,e,n,this.origin),Us(r,t,n,this.origin),r.primitiveCount++,this.primitiveCount++}addPoint(e,t){let n=this.batchFor(this.pointBuckets,Xs(e));Us(n,e,t,this.origin),n.primitiveCount++,this.primitiveCount++}addTriangleFan(e,t){let n=e.filter(Y).map(X);if(n.length<3)return;let r=Ys(n),i=this.batchFor(this.triangleBuckets,r);for(let e=1;e<n.length-1;e++)Us(i,n[0],t,this.origin),Us(i,n[e],t,this.origin),Us(i,n[e+1],t,this.origin),i.primitiveCount++,this.primitiveCount++}batchFor(e,t){let n=this.bucketKey(t),r=e.get(n);return r||(r=Hs(),e.set(n,r)),J(r.bounds,{x:t.minX,y:t.minY}),J(r.bounds,{x:t.maxX,y:t.maxY}),r}bucketKey(e){if(!Number.isFinite(this.tileSize))return`all`;let t=(e.minX+e.maxX)/2,n=(e.minY+e.maxY)/2;return`${Math.floor((t-this.bounds.minX)/this.tileSize)}:${Math.floor((n-this.bounds.minY)/this.tileSize)}`}strokeBytes(e){return tc(ns(e,this.document,this.colorOptions()),[255,255,255,255],co(Number(e.opacity??1),0,1))}fillBytes(e){let t=rs(e,this.document,this.colorOptions());return t?tc(t,[255,255,255,255],co(Number(e.opacity??1),0,1)):void 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t=q();for(let n of e)J(t,n);return t}function Xs(e){return{minX:e.x,minY:e.y,maxX:e.x,maxY:e.y}}function Zs(e,t){return e.minX<=t.maxX&&e.maxX>=t.minX&&e.minY<=t.maxY&&e.maxY>=t.minY}function Qs(e,t){return t.trueColorByteOrder!==void 0&&t.trueColorByteOrder!==e.trueColorByteOrder||t.contrastMode!==void 0&&t.contrastMode!==e.contrastMode||t.minColorContrast!==void 0&&t.minColorContrast!==e.minColorContrast||t.foreground!==void 0&&t.foreground!==e.foreground||t.background!==void 0&&t.background!==e.background||t.maxInsertDepth!==void 0&&t.maxInsertDepth!==e.maxInsertDepth||t.maxCurveSegments!==void 0&&t.maxCurveSegments!==e.maxCurveSegments||t.spatialIndexCellCount!==void 0&&t.spatialIndexCellCount!==e.spatialIndexCellCount||t.maxVerticesPerBatch!==void 0&&t.maxVerticesPerBatch!==e.maxVerticesPerBatch||t.enableSpatialIndex!==void 0&&t.enableSpatialIndex!==e.enableSpatialIndex}function 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e.loaders)this.registry.register(t);if(this.canvas=e.canvas??document.createElement(`canvas`),this.canvas.classList.add(`cad-viewer-canvas`),e.container)e.container.classList.add(`cad-viewer-container`),e.canvas||(this.canvas.style.width=`100%`,this.canvas.style.height=`100%`,this.canvas.style.display=`block`,e.container.appendChild(this.canvas)),this.nativeHost=e.nativeHost??document.createElement(`div`),this.nativeHost.classList.add(`cad-viewer-native-host`),e.nativeHost||e.container.appendChild(this.nativeHost);else if(e.nativeHost)this.nativeHost=e.nativeHost,this.nativeHost.classList.add(`cad-viewer-native-host`);else if((t=e.canvas)!=null&&t.parentElement){e.canvas.parentElement.classList.add(`cad-viewer-container`);let t=document.createElement(`div`);t.classList.add(`cad-viewer-native-host`),e.canvas.parentElement.appendChild(t),this.nativeHost=t}this.renderer=oc(e.renderer??`auto`,this.canvas,e.canvasOptions),this.renderer.onStats=e=>{var t;return(t=this.options).onRenderStats?.call(t,e)},this.renderer.onViewChange=e=>{var t;return(t=this.options).onViewChange?.call(t,e)}}registerLoader(e){return this.registry.register(e),this}async loadFile(e,t={}){var n,r;return(r=(n=this.options).onLoadStart)==null||r.call(n,e),this.loadThroughRegistry({file:e,fileName:e.name},t,e.name)}async loadBuffer(e,t,n={}){var r,i;return(i=(r=this.options).onLoadStart)==null||i.call(r,e),this.loadThroughRegistry({buffer:e,fileName:t},n,t)}async load(e,t={}){var n,r;return(r=(n=this.options).onLoadStart)==null||r.call(n,e),this.loadThroughRegistry(e,t,e.fileName??e.file?.name)}setDocument(e,t){var n,r;this.deactivateNativeRenderer();let i={document:e,raw:e.raw,bytes:0,elapsedMs:0,format:e.format,warnings:e.warnings,summary:Xa(e),fileName:t};return this.renderer.setDocument(e),this.options.autoFit||this.renderer.render(),this.lastResult=i,(r=(n=this.options).onLoad)==null||r.call(n,i),i}fit(){var e,t;this.activeNativeLoader?(t=(e=this.activeNativeLoader).fit)==null||t.call(e):this.renderer.fitToView()}zoomIn(){var e,t;this.activeNativeLoader?(t=(e=this.activeNativeLoader).zoomIn)==null||t.call(e):this.renderer.zoomIn()}zoomOut(){var e,t;this.activeNativeLoader?(t=(e=this.activeNativeLoader).zoomOut)==null||t.call(e):this.renderer.zoomOut()}resize(){var e,t;this.activeNativeLoader?(t=(e=this.activeNativeLoader).resize)==null||t.call(e):this.renderer.resize()}setCanvasOptions(e){var t,n;this.options.canvasOptions={...this.options.canvasOptions??{},...e},this.renderer.setOptions(e),this.activeNativeLoader&&((n=(t=this.activeNativeLoader).setNativeOptions)==null||n.call(t,{...this.mergeLoadOptions({}),dwfBackground:e.background??this.options.dwfBackground}))}async preloadDwg(e={}){let t=this.registry.list().find(e=>e.id===`dwg`);if(!(t!=null&&t.preload))throw Error(`The registered DWG loader does not support preload().`);return t.preload(this.mergeLoadOptions(e))}clear(){this.lastResult=void 0,this.deactivateNativeRenderer(),this.renderer.clear()}destroy(){var e,t,n;this.deactivateNativeRenderer();for(let r of this.registry.list()){let i=r;(e=i.terminateWorker)==null||e.call(i),(t=i.unmount)==null||t.call(i),(n=i.destroy)==null||n.call(i)}this.renderer.destroy()}getLoadResult(){return this.lastResult}getDocument(){return this.activeNativeLoader?this.lastResult?.document:this.renderer.getDocument()}getZoomPercent(){return this.activeNativeLoader?100:this.renderer.getZoomPercent()}isNativeRendererActive(){return!!this.activeNativeLoader}async loadThroughRegistry(e,t,n){var r,i;try{let r=this.mergeLoadOptions(t);ac(r.signal);let i=await this.registry.detect(e),a={...e,buffer:i.bytes};if(Xo(i.loader))return await this.applyNativeLoadResult(i.loader,a,r,n);let o=await i.loader.load(a,r);return this.applyLoadResult(o,n)}catch(e){let t=ic(e);throw(i=(r=this.options).onError)==null||i.call(r,t),t}}applyLoadResult(e,t){var n,r,i,a;this.deactivateNativeRenderer(),(r=(n=this.options).onLoadProgress)==null||r.call(n,{phase:`render`,format:e.format,message:`Rendering normalized CAD scene…`,percent:96}),this.renderer.setDocument(e.document),this.options.autoFit||this.renderer.render();let o={...e,fileName:t,summary:Xa(e.document)};return this.lastResult=o,(a=(i=this.options).onLoad)==null||a.call(i,o),o}async applyNativeLoadResult(e,t,n,r){var i,a,o;if(!this.nativeHost)throw Error(`Native DWF rendering requires CadViewerOptions.container, nativeHost, or a canvas parent element.`);ac(n.signal),this.renderer.clear(),(i=this.activeNativeLoader)==null||i.unmount(),this.activeNativeLoader=e,this.canvas.style.display=`none`,this.nativeHost.classList.add(`is-active`);try{let i=await e.mount(t,this.nativeHost,n);ac(n.signal);let s={...i,fileName:r,summary:Xa(i.document)};return this.lastResult=s,this.emitNativeRenderStats(i),(o=(a=this.options).onLoad)==null||o.call(a,s),s}catch(e){throw this.deactivateNativeRenderer(),e}}deactivateNativeRenderer(){var e,t;if(!this.activeNativeLoader&&!((e=this.nativeHost)!=null&&e.classList.contains(`is-active`))){this.canvas.style.display=``;return}(t=this.activeNativeLoader)==null||t.unmount(),this.activeNativeLoader=void 0,this.nativeHost&&(this.nativeHost.classList.remove(`is-active`),this.nativeHost.replaceChildren()),this.canvas.style.display=``}emitNativeRenderStats(e){var t,n;let r=e.document.metadata,i=Number(r.nativeRenderStats?.commands??e.document.entities.length??0),a=String(r.nativeRenderStats?.backend??`webgl`).includes(`webgl`)?`webgl`:`canvas2d`;(n=(t=this.options).onRenderStats)==null||n.call(t,{total:i,drawn:i,skipped:0,byType:Xa(e.document).byType,unsupported:{},renderElapsedMs:e.elapsedMs,backend:a,primitiveCount:i,visiblePrimitiveCount:i,culledPrimitiveCount:0,gpuMemoryBytes:void 0,buildElapsedMs:e.elapsedMs})}mergeLoadOptions(e){let t=this.options.onProgress,n=e.onProgress;return{...this.options,...e,onProgress:e=>{var r,i;(i=(r=this.options).onLoadProgress)==null||i.call(r,e),t?.(e),n&&n!==t&&n(e)}}}};function ic(e){return e instanceof Error?e:Error(String(e))}function ac(e){if(e!=null&&e.aborted)throw new DOMException(`Loading cancelled.`,`AbortError`)}function oc(e,t,n={}){if(e===`canvas2d`)return new As(t,n);if(e===`webgl`)return new Ns(t,n);if(Ps())try{return new Ns(t,n)}catch{}return new As(t,n)}var sc={class:`cad-shell`},cc={class:`cad-toolbar`},lc={class:`cad-tools`},uc={class:`cad-zoom`},dc={class:`cad-meta`},fc={key:0,class:`cad-layers`},pc={class:`cad-layers-head`},mc=[`onClick`],hc={class:`cad-canvas-wrap`},gc={key:0,class:`cad-state`},_c={key:1,class:`cad-state error`},vc={class:`cad-inspector`},yc={key:0,class:`cad-warning`},bc=`wasm/cad/`,xc=`wasm/cad/dwg-worker.js`,Sc=`wasm/cad/dwfv-render.wasm`,Cc=12e4,wc=e(c({__name:`CadViewer`,props:{data:{},type:{},options:{}},setup(e){let t=e,c=n(null),_=n(null),v=n(`loading`),y=n(`正在加载 CAD 预览器...`),b=n(``),x=n(null),S=n(null),C=n(null),w=n([]),T=p(()=>x.value?.warnings||x.value?.document.warnings||[]),E=p(()=>x.value?.summary),ee=p(()=>S.value?.backend||`auto`),D=p(()=>{let e=C.value?.zoomPercent??O?.getZoomPercent?.()??100;return Number.isFinite(e)?Math.round(e):100}),O=null,k=null,A=null,j=()=>t.type.toLowerCase()||`dxf`,M=(e,t,n=!1)=>{let r=new URL(e?String(e):t,document.baseURI).href;return n?r.replace(/\/+$/,``):r},te=()=>`drawing.${j()}`,ne=e=>e?Object.entries(e.document.layers).map(([e,t])=>({...t,name:e})).sort((e,t)=>e.name.localeCompare(t.name)):[],re=e=>Number.isFinite(e)?new Intl.NumberFormat(`zh-CN`).format(Math.round(e||0)):`0`,ie=e=>{let t=e.format?`${e.format.toUpperCase()} `:``,n=Number.isFinite(e.percent)?` ${Math.round(e.percent||0)}%`:``;y.value=`${t}${e.message}${n}`},ae=()=>{O?.fit()},oe=()=>{O?.zoomIn()},se=()=>{O?.zoomOut()},ce=e=>{let t=O?.getDocument();if(!t?.layers[e.name])return;let n=t.layers[e.name];n.isVisible=n.isVisible===!1;let r=O?.setDocument(t,te())||null;x.value=r,w.value=ne(r),u(()=>O?.fit())},le=async()=>{let e=c.value,n=_.value;if(!e)return null;let r=t.options||{},i=M(r.wasmPath,bc,!0),a=M(r.workerUrl,xc),o=M(r.dwfWasmUrl,Sc),s=new rc({container:e,nativeHost:n||void 0,renderer:r.renderer||`auto`,wasmPath:i,workerUrl:a,dwfWasmUrl:o,useWorker:r.useWorker??!0,workerTimeoutMs:r.workerTimeoutMs??Cc,preferDwgWasm:r.preferDwgWasm??!0,includePaperSpace:r.includePaperSpace??!0,maxInsertDepth:r.maxInsertDepth,keepRaw:r.keepRaw??!1,dwfPreferWebgl:r.dwfPreferWebgl??!0,dwfPreferWasm:r.dwfPreferWasm??!0,dwfBackground:r.dwfBackground||`#f8fafc`,dwfMaxDevicePixelRatio:r.dwfMaxDevicePixelRatio,dwfMaxCanvasPixels:r.dwfMaxCanvasPixels,dwfMaxGpuCacheBytes:r.dwfMaxGpuCacheBytes,dwfMaxCachedScenes:r.dwfMaxCachedScenes,dwfLineWeightMode:r.dwfLineWeightMode,dwfMinStrokeCssPx:r.dwfMinStrokeCssPx,dwfMaxOverviewStrokeCssPx:r.dwfMaxOverviewStrokeCssPx,dwfMinTextCssPx:r.dwfMinTextCssPx,dwfMinFilledAreaCssPx:r.dwfMinFilledAreaCssPx,autoFit:!0,canvasOptions:{background:`#f8fafc`,foreground:`#0f172a`,contrastMode:`adaptive`,minColorContrast:2.4,showPageBounds:!0,showUnsupportedMarkers:!0,enableSpatialIndex:!0,maxVisibleTextLabels:2400,...r.canvasOptions||{}},onLoadProgress:ie,onRenderStats:e=>{S.value=e},onViewChange:e=>{C.value=e},onLoad:e=>{x.value=e,w.value=ne(e)},onError:e=>{b.value=e.message||`CAD 文件解析失败`}});return r.preloadDwg!==!1&&j()===`dwg`&&s.preloadDwg({wasmPath:i,workerUrl:a}).catch(()=>{}),s},ue=async()=>{v.value=`loading`,y.value=`正在解析 CAD...`,b.value=``,x.value=null,S.value=null,C.value=null,w.value=[],A?.abort(),A=new AbortController;try{if(O?.destroy(),O=await le(),!O)return;let e=t.options||{},n=await O.loadBuffer(t.data.slice(0),te(),{signal:A.signal,transferInputBuffer:!1,wasmPath:M(e.wasmPath,bc,!0),workerUrl:M(e.workerUrl,xc),dwfWasmUrl:M(e.dwfWasmUrl,Sc)});x.value=n,w.value=ne(n),v.value=`ready`,await u(),O.fit()}catch(e){if(A.signal.aborted)return;console.error(e),v.value=`error`,b.value=e instanceof Error?e.message:`CAD 文件解析失败`}};return o(()=>{ue(),c.value&&(k=new ResizeObserver(()=>{O?.resize()}),k.observe(c.value))}),l(()=>{A?.abort(),A=null,k?.disconnect(),k=null,O?.destroy(),O=null}),(e,t)=>(g(),m(`div`,sc,[d(`div`,cc,[d(`div`,lc,[d(`button`,{type:`button`,onClick:ae},`适配`),d(`button`,{type:`button`,title:`缩小`,onClick:se},`-`),d(`span`,uc,i(D.value)+`%`,1),d(`button`,{type:`button`,title:`放大`,onClick:oe},`+`)]),d(`div`,dc,[d(`span`,null,i(j().toUpperCase()),1),d(`span`,null,i(ee.value.toUpperCase()),1)])]),d(`div`,{class:r([`cad-body`,{"without-layers":!w.value.length}])},[w.value.length?(g(),m(`aside`,fc,[d(`div`,pc,[t[0]||=d(`strong`,null,`图层`,-1),d(`span`,null,i(w.value.length)+` 项`,1)]),(g(!0),m(h,null,s(w.value,e=>(g(),m(`button`,{key:e.name,type:`button`,class:r({muted:e.isVisible===!1||e.isFrozen}),onClick:t=>ce(e)},[d(`span`,{class:`cad-layer-color`,style:a({background:typeof e.color==`string`?e.color:void 0})},null,4),d(`span`,null,i(e.name),1)],10,mc))),128))])):f(``,!0),d(`div`,hc,[d(`div`,{ref_key:`root`,ref:c,class:`cad-stage`},[d(`div`,{ref_key:`nativeHost`,ref:_,class:`cad-native-stage`},null,512)],512),v.value===`loading`?(g(),m(`div`,gc,i(y.value),1)):v.value===`error`?(g(),m(`div`,_c,i(b.value),1)):f(``,!0)]),d(`aside`,vc,[t[5]||=d(`strong`,null,`结构`,-1),d(`dl`,null,[d(`div`,null,[t[1]||=d(`dt`,null,`实体`,-1),d(`dd`,null,i(re(E.value?.entityCount)),1)]),d(`div`,null,[t[2]||=d(`dt`,null,`块`,-1),d(`dd`,null,i(re(E.value?.blockCount)),1)]),d(`div`,null,[t[3]||=d(`dt`,null,`页面`,-1),d(`dd`,null,i(re(E.value?.pageCount)),1)]),d(`div`,null,[t[4]||=d(`dt`,null,`绘制`,-1),d(`dd`,null,i(re(S.value?.drawn)),1)])]),T.value.length?(g(),m(`p`,yc,i(T.value[0]),1)):f(``,!0)])],2)]))}}),[[`__scopeId`,`data-v-06294777`]]);export{wc as default}; |