shithub: riscv

ref: d552fed38514dc799c7fea95dfb632c8816c3f60
dir: /sys/src/cmd/hg/templates/static/excanvas.js/

if(!window.CanvasRenderingContext2D){(function(){var I=Math,i=I.round,L=I.sin,M=I.cos,m=10,A=m/2,Q={init:function(a){var b=a||document;if(/MSIE/.test(navigator.userAgent)&&!window.opera){var c=this;b.attachEvent("onreadystatechange",function(){c.r(b)})}},r:function(a){if(a.readyState=="complete"){if(!a.namespaces["s"]){a.namespaces.add("g_vml_","urn:schemas-microsoft-com:vml")}var b=a.createStyleSheet();b.cssText="canvas{display:inline-block;overflow:hidden;text-align:left;width:300px;height:150px}g_vml_\\:*{behavior:url(#default#VML)}";
var c=a.getElementsByTagName("canvas");for(var d=0;d<c.length;d++){if(!c[d].getContext){this.initElement(c[d])}}}},q:function(a){var b=a.outerHTML,c=a.ownerDocument.createElement(b);if(b.slice(-2)!="/>"){var d="/"+a.tagName,e;while((e=a.nextSibling)&&e.tagName!=d){e.removeNode()}if(e){e.removeNode()}}a.parentNode.replaceChild(c,a);return c},initElement:function(a){a=this.q(a);a.getContext=function(){if(this.l){return this.l}return this.l=new K(this)};a.attachEvent("onpropertychange",V);a.attachEvent("onresize",
W);var b=a.attributes;if(b.width&&b.width.specified){a.style.width=b.width.nodeValue+"px"}else{a.width=a.clientWidth}if(b.height&&b.height.specified){a.style.height=b.height.nodeValue+"px"}else{a.height=a.clientHeight}return a}};function V(a){var b=a.srcElement;switch(a.propertyName){case "width":b.style.width=b.attributes.width.nodeValue+"px";b.getContext().clearRect();break;case "height":b.style.height=b.attributes.height.nodeValue+"px";b.getContext().clearRect();break}}function W(a){var b=a.srcElement;
if(b.firstChild){b.firstChild.style.width=b.clientWidth+"px";b.firstChild.style.height=b.clientHeight+"px"}}Q.init();var R=[];for(var E=0;E<16;E++){for(var F=0;F<16;F++){R[E*16+F]=E.toString(16)+F.toString(16)}}function J(){return[[1,0,0],[0,1,0],[0,0,1]]}function G(a,b){var c=J();for(var d=0;d<3;d++){for(var e=0;e<3;e++){var g=0;for(var h=0;h<3;h++){g+=a[d][h]*b[h][e]}c[d][e]=g}}return c}function N(a,b){b.fillStyle=a.fillStyle;b.lineCap=a.lineCap;b.lineJoin=a.lineJoin;b.lineWidth=a.lineWidth;b.miterLimit=
a.miterLimit;b.shadowBlur=a.shadowBlur;b.shadowColor=a.shadowColor;b.shadowOffsetX=a.shadowOffsetX;b.shadowOffsetY=a.shadowOffsetY;b.strokeStyle=a.strokeStyle;b.d=a.d;b.e=a.e}function O(a){var b,c=1;a=String(a);if(a.substring(0,3)=="rgb"){var d=a.indexOf("(",3),e=a.indexOf(")",d+1),g=a.substring(d+1,e).split(",");b="#";for(var h=0;h<3;h++){b+=R[Number(g[h])]}if(g.length==4&&a.substr(3,1)=="a"){c=g[3]}}else{b=a}return[b,c]}function S(a){switch(a){case "butt":return"flat";case "round":return"round";
case "square":default:return"square"}}function K(a){this.a=J();this.m=[];this.k=[];this.c=[];this.strokeStyle="#000";this.fillStyle="#000";this.lineWidth=1;this.lineJoin="miter";this.lineCap="butt";this.miterLimit=m*1;this.globalAlpha=1;this.canvas=a;var b=a.ownerDocument.createElement("div");b.style.width=a.clientWidth+"px";b.style.height=a.clientHeight+"px";b.style.overflow="hidden";b.style.position="absolute";a.appendChild(b);this.j=b;this.d=1;this.e=1}var j=K.prototype;j.clearRect=function(){this.j.innerHTML=
"";this.c=[]};j.beginPath=function(){this.c=[]};j.moveTo=function(a,b){this.c.push({type:"moveTo",x:a,y:b});this.f=a;this.g=b};j.lineTo=function(a,b){this.c.push({type:"lineTo",x:a,y:b});this.f=a;this.g=b};j.bezierCurveTo=function(a,b,c,d,e,g){this.c.push({type:"bezierCurveTo",cp1x:a,cp1y:b,cp2x:c,cp2y:d,x:e,y:g});this.f=e;this.g=g};j.quadraticCurveTo=function(a,b,c,d){var e=this.f+0.6666666666666666*(a-this.f),g=this.g+0.6666666666666666*(b-this.g),h=e+(c-this.f)/3,l=g+(d-this.g)/3;this.bezierCurveTo(e,
g,h,l,c,d)};j.arc=function(a,b,c,d,e,g){c*=m;var h=g?"at":"wa",l=a+M(d)*c-A,n=b+L(d)*c-A,o=a+M(e)*c-A,f=b+L(e)*c-A;if(l==o&&!g){l+=0.125}this.c.push({type:h,x:a,y:b,radius:c,xStart:l,yStart:n,xEnd:o,yEnd:f})};j.rect=function(a,b,c,d){this.moveTo(a,b);this.lineTo(a+c,b);this.lineTo(a+c,b+d);this.lineTo(a,b+d);this.closePath()};j.strokeRect=function(a,b,c,d){this.beginPath();this.moveTo(a,b);this.lineTo(a+c,b);this.lineTo(a+c,b+d);this.lineTo(a,b+d);this.closePath();this.stroke()};j.fillRect=function(a,
b,c,d){this.beginPath();this.moveTo(a,b);this.lineTo(a+c,b);this.lineTo(a+c,b+d);this.lineTo(a,b+d);this.closePath();this.fill()};j.createLinearGradient=function(a,b,c,d){var e=new H("gradient");return e};j.createRadialGradient=function(a,b,c,d,e,g){var h=new H("gradientradial");h.n=c;h.o=g;h.i.x=a;h.i.y=b;return h};j.drawImage=function(a,b){var c,d,e,g,h,l,n,o,f=a.runtimeStyle.width,k=a.runtimeStyle.height;a.runtimeStyle.width="auto";a.runtimeStyle.height="auto";var q=a.width,r=a.height;a.runtimeStyle.width=
f;a.runtimeStyle.height=k;if(arguments.length==3){c=arguments[1];d=arguments[2];h=(l=0);n=(e=q);o=(g=r)}else if(arguments.length==5){c=arguments[1];d=arguments[2];e=arguments[3];g=arguments[4];h=(l=0);n=q;o=r}else if(arguments.length==9){h=arguments[1];l=arguments[2];n=arguments[3];o=arguments[4];c=arguments[5];d=arguments[6];e=arguments[7];g=arguments[8]}else{throw"Invalid number of arguments";}var s=this.b(c,d),t=[],v=10,w=10;t.push(" <g_vml_:group",' coordsize="',m*v,",",m*w,'"',' coordorigin="0,0"',
' style="width:',v,";height:",w,";position:absolute;");if(this.a[0][0]!=1||this.a[0][1]){var x=[];x.push("M11='",this.a[0][0],"',","M12='",this.a[1][0],"',","M21='",this.a[0][1],"',","M22='",this.a[1][1],"',","Dx='",i(s.x/m),"',","Dy='",i(s.y/m),"'");var p=s,y=this.b(c+e,d),z=this.b(c,d+g),B=this.b(c+e,d+g);p.x=Math.max(p.x,y.x,z.x,B.x);p.y=Math.max(p.y,y.y,z.y,B.y);t.push("padding:0 ",i(p.x/m),"px ",i(p.y/m),"px 0;filter:progid:DXImageTransform.Microsoft.Matrix(",x.join(""),", sizingmethod='clip');")}else{t.push("top:",
i(s.y/m),"px;left:",i(s.x/m),"px;")}t.push(' ">','<g_vml_:image src="',a.src,'"',' style="width:',m*e,";"," height:",m*g,';"',' cropleft="',h/q,'"',' croptop="',l/r,'"',' cropright="',(q-h-n)/q,'"',' cropbottom="',(r-l-o)/r,'"'," />","</g_vml_:group>");this.j.insertAdjacentHTML("BeforeEnd",t.join(""))};j.stroke=function(a){var b=[],c=O(a?this.fillStyle:this.strokeStyle),d=c[0],e=c[1]*this.globalAlpha,g=10,h=10;b.push("<g_vml_:shape",' fillcolor="',d,'"',' filled="',Boolean(a),'"',' style="position:absolute;width:',
g,";height:",h,';"',' coordorigin="0 0" coordsize="',m*g," ",m*h,'"',' stroked="',!a,'"',' strokeweight="',this.lineWidth,'"',' strokecolor="',d,'"',' path="');var l={x:null,y:null},n={x:null,y:null};for(var o=0;o<this.c.length;o++){var f=this.c[o];if(f.type=="moveTo"){b.push(" m ");var k=this.b(f.x,f.y);b.push(i(k.x),",",i(k.y))}else if(f.type=="lineTo"){b.push(" l ");var k=this.b(f.x,f.y);b.push(i(k.x),",",i(k.y))}else if(f.type=="close"){b.push(" x ")}else if(f.type=="bezierCurveTo"){b.push(" c ");
var k=this.b(f.x,f.y),q=this.b(f.cp1x,f.cp1y),r=this.b(f.cp2x,f.cp2y);b.push(i(q.x),",",i(q.y),",",i(r.x),",",i(r.y),",",i(k.x),",",i(k.y))}else if(f.type=="at"||f.type=="wa"){b.push(" ",f.type," ");var k=this.b(f.x,f.y),s=this.b(f.xStart,f.yStart),t=this.b(f.xEnd,f.yEnd);b.push(i(k.x-this.d*f.radius),",",i(k.y-this.e*f.radius)," ",i(k.x+this.d*f.radius),",",i(k.y+this.e*f.radius)," ",i(s.x),",",i(s.y)," ",i(t.x),",",i(t.y))}if(k){if(l.x==null||k.x<l.x){l.x=k.x}if(n.x==null||k.x>n.x){n.x=k.x}if(l.y==
null||k.y<l.y){l.y=k.y}if(n.y==null||k.y>n.y){n.y=k.y}}}b.push(' ">');if(typeof this.fillStyle=="object"){var v={x:"50%",y:"50%"},w=n.x-l.x,x=n.y-l.y,p=w>x?w:x;v.x=i(this.fillStyle.i.x/w*100+50)+"%";v.y=i(this.fillStyle.i.y/x*100+50)+"%";var y=[];if(this.fillStyle.p=="gradientradial"){var z=this.fillStyle.n/p*100,B=this.fillStyle.o/p*100-z}else{var z=0,B=100}var C={offset:null,color:null},D={offset:null,color:null};this.fillStyle.h.sort(function(T,U){return T.offset-U.offset});for(var o=0;o<this.fillStyle.h.length;o++){var u=
this.fillStyle.h[o];y.push(u.offset*B+z,"% ",u.color,",");if(u.offset>C.offset||C.offset==null){C.offset=u.offset;C.color=u.color}if(u.offset<D.offset||D.offset==null){D.offset=u.offset;D.color=u.color}}y.pop();b.push("<g_vml_:fill",' color="',D.color,'"',' color2="',C.color,'"',' type="',this.fillStyle.p,'"',' focusposition="',v.x,", ",v.y,'"',' colors="',y.join(""),'"',' opacity="',e,'" />')}else if(a){b.push('<g_vml_:fill color="',d,'" opacity="',e,'" />')}else{b.push("<g_vml_:stroke",' opacity="',
e,'"',' joinstyle="',this.lineJoin,'"',' miterlimit="',this.miterLimit,'"',' endcap="',S(this.lineCap),'"',' weight="',this.lineWidth,'px"',' color="',d,'" />')}b.push("</g_vml_:shape>");this.j.insertAdjacentHTML("beforeEnd",b.join(""));this.c=[]};j.fill=function(){this.stroke(true)};j.closePath=function(){this.c.push({type:"close"})};j.b=function(a,b){return{x:m*(a*this.a[0][0]+b*this.a[1][0]+this.a[2][0])-A,y:m*(a*this.a[0][1]+b*this.a[1][1]+this.a[2][1])-A}};j.save=function(){var a={};N(this,a);
this.k.push(a);this.m.push(this.a);this.a=G(J(),this.a)};j.restore=function(){N(this.k.pop(),this);this.a=this.m.pop()};j.translate=function(a,b){var c=[[1,0,0],[0,1,0],[a,b,1]];this.a=G(c,this.a)};j.rotate=function(a){var b=M(a),c=L(a),d=[[b,c,0],[-c,b,0],[0,0,1]];this.a=G(d,this.a)};j.scale=function(a,b){this.d*=a;this.e*=b;var c=[[a,0,0],[0,b,0],[0,0,1]];this.a=G(c,this.a)};j.clip=function(){};j.arcTo=function(){};j.createPattern=function(){return new P};function H(a){this.p=a;this.n=0;this.o=
0;this.h=[];this.i={x:0,y:0}}H.prototype.addColorStop=function(a,b){b=O(b);this.h.push({offset:1-a,color:b})};function P(){}G_vmlCanvasManager=Q;CanvasRenderingContext2D=K;CanvasGradient=H;CanvasPattern=P})()};