inno-diagram/src/diagrams/activity-diagram.js

It was created to develop Inno Linc.

require('../utils/yuml2dot-utils.js')();

module.exports = function(specLines, options)
{
    function composeDotExpr(specLines)
    {
        var obj = JSON.parse(specLines);

        var uids = {};
        var nodes = [];
        var len = 0;

        var logicName = obj.logic.name;
        var logiclinks = obj.logic.link;
        var node = createnode(logicName, true);

        var uid = 'A' + (len++).toString();
        uids[recordName(logicName)] = uid;
        nodes.push([uid, node]);

        if (obj.run.length > 0)
        {
            for(var i = 0; i < obj.run.length;i++)
            {
                var linkName = obj.run[i].name;
                var childnode = createnode(linkName, false);
                
                var uid = 'A' + (len++).toString();
                uids[recordName(linkName)] = uid;
                nodes.push([uid, childnode]);

            }

            for (var i = 0; i < obj.run.length; i++)
            {
                if (obj.run[i].link.length > 0)
                {
                    var links = obj.run[i].link;
                    var modulename = obj.run[i].name;

                    nodes = connectLink(nodes, uids, links, modulename);
                }
            }
            nodes = connectLink(nodes, uids, logiclinks, logicName);
        }
        
        var dot = "    ranksep = " + 0.5 + "\r\n";
        dot += "    rankdir = " + options.dir + "\r\n";        
        dot += serializeDotElements(nodes);
        dot += '}\r\n';
        
        return dot;
    }
    function connectLink(nodes, uids, linkobj, tailname)
    {
        for (var i = 0; i < linkobj.length; i++)
        {
            var linkName = linkobj[i].split(':');

            var edge = createline(tailname, linkName[0]);

            var uid1 = uids[recordName(linkName[0])];
            var uid2 = uids[recordName(tailname)];

            nodes.push([uid1, uid2, edge]);
        }

        return nodes;
    }
    function createline(logic, link)
    {
        var edge = {
            shape: "edge",
            dir: "both",
            style: "dashed",
            arrowtail: logic,
            arrowhead: link,
            labeldistance: 1,
            fontsize: 10
        }

        return edge;
    }

    function createnode(name, islogic)
    {
        var _shape = islogic ? "doublecircle" : "record";
        var node = {
            shape: _shape,
            height: 0.5,
            fontsize: 10,
            margin: "0.20,0.05",
            label: escape_label(name),
            style: "rounded"
        }

        return node;
    }

    function addBarFacet(elements, name)
    {
        for (var i=0; i<elements.length; i++)
        {
            if (elements[i].length == 2 && elements[i][0] == name)
            {
                var node = elements[i][1];
                var facetNum = 1;

                if (node.label.length > 0)
                {                
                    facetNum = node.label.split("|").length + 1;
                    node.label += "|<f" + facetNum + ">";
                }
                else
                    node.label = "<f1>";

                return "f" + facetNum;
            }
        }

        return null;
    }

    return composeDotExpr(specLines, options);
}