educoder/public/editormd/lib/flowchart.min.js

// flowchart, v1.3.4
// Copyright (c)2014 Adriano Raiano (adrai).
// Distributed under MIT license
// http://adrai.github.io/flowchart.js
!function(){function a(b,c){if(!b||"function"==typeof b)return c;var d={};for(var e in c)d[e]=c[e];for(e in b)b[e]&&(d[e]="object"==typeof d[e]?a(d[e],b[e]):b[e]);return d}function b(a,b){if("function"==typeof Object.create)a.super_=b,a.prototype=Object.create(b.prototype,{constructor:{value:a,enumerable:!1,writable:!0,configurable:!0}});else{a.super_=b;var c=function(){};c.prototype=b.prototype,a.prototype=new c,a.prototype.constructor=a}}function c(a,b,c){var d,e,f="M{0},{1}";for(d=2,e=2*c.length+2;e>d;d+=2)f+=" L{"+d+"},{"+(d+1)+"}";var g=[b.x,b.y];for(d=0,e=c.length;e>d;d++)g.push(c[d].x),g.push(c[d].y);var h=a.paper.path(f,g);h.attr("stroke",a.options["element-color"]),h.attr("stroke-width",a.options["line-width"]);var i=a.options.font,j=a.options["font-family"],k=a.options["font-weight"];return i&&h.attr({font:i}),j&&h.attr({"font-family":j}),k&&h.attr({"font-weight":k}),h}function d(a,b,c,d){var e,f;"[object Array]"!==Object.prototype.toString.call(c)&&(c=[c]);var g="M{0},{1}";for(e=2,f=2*c.length+2;f>e;e+=2)g+=" L{"+e+"},{"+(e+1)+"}";var h=[b.x,b.y];for(e=0,f=c.length;f>e;e++)h.push(c[e].x),h.push(c[e].y);var i=a.paper.path(g,h);i.attr({stroke:a.options["line-color"],"stroke-width":a.options["line-width"],"arrow-end":a.options["arrow-end"]});var j=a.options.font,k=a.options["font-family"],l=a.options["font-weight"];if(j&&i.attr({font:j}),k&&i.attr({"font-family":k}),l&&i.attr({"font-weight":l}),d){var m=!1,n=a.paper.text(0,0,d),o=!1,p=c[0];b.y===p.y&&(o=!0);var q=0,r=0;m?(q=b.x>p.x?b.x-(b.x-p.x)/2:p.x-(p.x-b.x)/2,r=b.y>p.y?b.y-(b.y-p.y)/2:p.y-(p.y-b.y)/2,o?(q-=n.getBBox().width/2,r-=a.options["text-margin"]):(q+=a.options["text-margin"],r-=n.getBBox().height/2)):(q=b.x,r=b.y,o?(q+=a.options["text-margin"]/2,r-=a.options["text-margin"]):(q+=a.options["text-margin"]/2,r+=a.options["text-margin"])),n.attr({"text-anchor":"start","font-size":a.options["font-size"],fill:a.options["font-color"],x:q,y:r}),j&&n.attr({font:j}),k&&n.attr({"font-family":k}),l&&n.attr({"font-weight":l})}return i}function e(a,b,c,d,e,f,g,h){var i,j,k,l,m,n={x:null,y:null,onLine1:!1,onLine2:!1};return i=(h-f)*(c-a)-(g-e)*(d-b),0===i?n:(j=b-f,k=a-e,l=(g-e)*j-(h-f)*k,m=(c-a)*j-(d-b)*k,j=l/i,k=m/i,n.x=a+j*(c-a),n.y=b+j*(d-b),j>0&&1>j&&(n.onLine1=!0),k>0&&1>k&&(n.onLine2=!0),n)}function f(a,b){b=b||{},this.paper=new Raphael(a),this.options=r.defaults(b,q),this.symbols=[],this.lines=[],this.start=null}function g(a,b,c){this.chart=a,this.group=this.chart.paper.set(),this.symbol=c,this.connectedTo=[],this.symbolType=b.symbolType,this.flowstate=b.flowstate||"future",this.next_direction=b.next&&b.direction_next?b.direction_next:void 0,this.text=this.chart.paper.text(0,0,b.text),b.key&&(this.text.node.id=b.key+"t"),this.text.node.setAttribute("class",this.getAttr("class")+"t"),this.text.attr({"text-anchor":"start",x:this.getAttr("text-margin"),fill:this.getAttr("font-color"),"font-size":this.getAttr("font-size")});var d=this.getAttr("font"),e=this.getAttr("font-family"),f=this.getAttr("font-weight");d&&this.text.attr({font:d}),e&&this.text.attr({"font-family":e}),f&&this.text.attr({"font-weight":f}),b.link&&this.text.attr("href",b.link),b.target&&this.text.attr("target",b.target);var g=this.getAttr("maxWidth");if(g){for(var h=b.text.split(" "),i="",j=0,k=h.length;k>j;j++){var l=h[j];this.text.attr("text",i+" "+l),i+=this.text.getBBox().width>g?"\n"+l:" "+l}this.text.attr("text",i.substring(1))}if(this.group.push(this.text),c){var m=this.getAttr("text-margin");c.attr({fill:this.getAttr("fill"),stroke:this.getAttr("element-color"),"stroke-width":this.getAttr("line-width"),width:this.text.getBBox().width+2*m,height:this.text.getBBox().height+2*m}),c.node.setAttribute("class",this.getAttr("class")),b.link&&c.attr("href",b.link),b.target&&c.attr("target",b.target),b.key&&(c.node.id=b.key),this.group.push(c),c.insertBefore(this.text),this.text.attr({y:c.getBBox().height/2}),this.initialize()}}function h(a,b){var c=a.paper.rect(0,0,0,0,20);b=b||{},b.text=b.text||"Start",g.call(this,a,b,c)}function i(a,b){var c=a.paper.rect(0,0,0,0,20);b=b||{},b.text=b.text||"E