mermaid/src/diagrams/classDiagram/classRenderer.js

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/**
* Created by knut on 14-11-23.
*/
var cd = require('./parser/classDiagram').parser;
var cDDb = require('./classDb');
cd.yy = cDDb;
var d3 = require('../../d3');
import * as Logger from '../../logger';
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import * as dagre from 'dagre';
var log = new Logger.Log();
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var idCache;
if (typeof Map !== 'undefined') {
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idCache = new Map();
}
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let classCnt = 0;
var conf = {
dividerMargin: 10,
padding: 5,
textHeight: 14
};
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// Todo optimize
var getGraphId = function (label) {
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for (var [id, classInfo] of idCache) {
if (classInfo.label === label) {
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return id;
}
}
return undefined;
}
/**
* Setup arrow head and define the marker. The result is appended to the svg.
*/
var insertMarkers = function (elem) {
elem.append('defs').append('marker')
.attr('id', 'extensionStart')
.attr('class', 'extension')
.attr('refX', 0)
.attr('refY', 7)
.attr('markerWidth', 190)
.attr('markerHeight', 240)
.attr('orient', 'auto')
.append('path')
.attr('d', 'M 1,7 L18,13 V 1 Z');
elem.append('defs').append('marker')
.attr('id', 'extensionEnd')
.attr('refX', 19)
.attr('refY', 7)
.attr('markerWidth', 20)
.attr('markerHeight', 28)
.attr('orient', 'auto')
.append('path')
.attr('d', 'M 1,1 V 13 L18,7 Z'); //this is actual shape for arrowhead
elem.append('defs').append('marker')
.attr('id', 'compositionStart')
.attr('class', 'extension')
.attr('refX', 0)
.attr('refY', 7)
.attr('markerWidth', 190)
.attr('markerHeight', 240)
.attr('orient', 'auto')
.append('path')
.attr('d', 'M 18,7 L9,13 L1,7 L9,1 Z');
elem.append('defs').append('marker')
.attr('id', 'compositionEnd')
.attr('refX', 19)
.attr('refY', 7)
.attr('markerWidth', 20)
.attr('markerHeight', 28)
.attr('orient', 'auto')
.append('path')
.attr('d', 'M 18,7 L9,13 L1,7 L9,1 Z');
elem.append('defs').append('marker')
.attr('id', 'aggregationStart')
.attr('class', 'extension')
.attr('refX', 0)
.attr('refY', 7)
.attr('markerWidth', 190)
.attr('markerHeight', 240)
.attr('orient', 'auto')
.append('path')
.attr('d', 'M 18,7 L9,13 L1,7 L9,1 Z');
elem.append('defs').append('marker')
.attr('id', 'aggregationEnd')
.attr('refX', 19)
.attr('refY', 7)
.attr('markerWidth', 20)
.attr('markerHeight', 28)
.attr('orient', 'auto')
.append('path')
.attr('d', 'M 18,7 L9,13 L1,7 L9,1 Z');
elem.append('defs').append('marker')
.attr('id', 'dependencyStart')
.attr('class', 'extension')
.attr('refX', 0)
.attr('refY', 7)
.attr('markerWidth', 190)
.attr('markerHeight', 240)
.attr('orient', 'auto')
.append('path')
.attr('d', 'M 5,7 L9,13 L1,7 L9,1 Z');
elem.append('defs').append('marker')
.attr('id', 'dependencyEnd')
.attr('refX', 19)
.attr('refY', 7)
.attr('markerWidth', 20)
.attr('markerHeight', 28)
.attr('orient', 'auto')
.append('path')
.attr('d', 'M 18,7 L9,13 L14,7 L9,1 Z');
};
var drawEdge = function (elem, path, relation) {
var getRelationType = function(type){
//console.warn(type);
switch(type){
case cDDb.relationType.AGGREGATION:
return 'aggregation';
case cDDb.relationType.EXTENSION:
return 'extension';
case cDDb.relationType.COMPOSITION:
return 'composition';
case cDDb.relationType.DEPENDENCY:
return 'dependency';
}
};
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//The data for our line
var lineData = path.points;
//This is the accessor function we talked about above
var lineFunction = d3.svg.line()
.x(function (d) {
return d.x;
})
.y(function (d) {
return d.y;
})
//.interpolate('cardinal');
.interpolate('basis');
var svgPath = elem.append('path')
.attr('d', lineFunction(lineData))
.attr('class', 'relation');
var url = window.location.protocol + '//' + window.location.host + window.location.pathname + window.location.search;
url = url.replace(/\(/g, '\\(');
url = url.replace(/\)/g, '\\)');
//console.log(relation.relation.type1);
if(relation.relation.type1 !== 'none'){
svgPath.attr('marker-start', 'url(' + url + '#' + getRelationType(relation.relation.type1)+'Start' + ')');
}
if(relation.relation.type2 !== 'none'){
svgPath.attr('marker-end', 'url(' + url + '#' + getRelationType(relation.relation.type2)+'End' + ')');
}
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}
var drawClass = function (elem, classDef) {
log.info('Rendering class ' + classDef);
var addTspan = function (textEl, txt, isFirst) {
var tSpan = textEl.append('tspan')
.attr('x', conf.padding)
.text(txt);
if (!isFirst) {
tSpan.attr('dy', conf.textHeight);
}
};
let id = 'classId' + classCnt;
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let classInfo = {
id: id,
label: classDef.id,
width: 0,
height: 0
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};
var g = elem.append('g')
.attr('id', id)
.attr('class', 'classGroup');
var title = g.append('text')
.attr('x', conf.padding)
.attr('y', conf.textHeight + conf.padding)
.text(classDef.id);
var titleHeight = title.node().getBBox().height;
var membersLine = g.append('line') // text label for the x axis
.attr('x1', 0)
.attr('y1', conf.padding + titleHeight + conf.dividerMargin / 2)
.attr('y2', conf.padding + titleHeight + conf.dividerMargin / 2);
var members = g.append('text') // text label for the x axis
.attr('x', conf.padding)
.attr('y', titleHeight + (conf.dividerMargin) + conf.textHeight)
.attr('fill', 'white')
.attr('class', 'classText');
let isFirst = true;
for (let member of classDef.members) {
addTspan(members, member, isFirst);
isFirst = false;
}
//console.warn(JSON.stringify(classDef));
var membersBox = members.node().getBBox();
var methodsLine = g.append('line') // text label for the x axis
.attr('x1', 0)
.attr('y1', conf.padding + titleHeight + 3 * conf.dividerMargin / 2 + membersBox.height)
.attr('y2', conf.padding + titleHeight + 3 * conf.dividerMargin / 2 + membersBox.height);
var methods = g.append('text') // text label for the x axis
.attr('x', conf.padding)
.attr('y', titleHeight + 2 * conf.dividerMargin + membersBox.height + conf.textHeight)
.attr('fill', 'white')
.attr('class', 'classText');
isFirst = true;
for (let method of classDef.methods) {
addTspan(methods, method, isFirst);
isFirst = false;
}
var classBox = g.node().getBBox();
g.insert('rect', ':first-child')
.attr('x', 0)
.attr('y', 0)
.attr('width', classBox.width + 2 * conf.padding)
.attr('height', classBox.height + conf.padding + 0.5 * conf.dividerMargin);
membersLine.attr('x2', classBox.width + 2 * conf.padding);
methodsLine.attr('x2', classBox.width + 2 * conf.padding);
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classInfo.width = classBox.width + 2 * conf.padding;
classInfo.height = classBox.height + conf.padding + 0.5 * conf.dividerMargin;
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idCache.set(id, classInfo);
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classCnt++;
return classInfo;
};
module.exports.setConf = function (cnf) {
var keys = Object.keys(cnf);
keys.forEach(function (key) {
conf[key] = cnf[key];
});
};
/**
* Draws a flowchart in the tag with id: id based on the graph definition in text.
* @param text
* @param id
*/
module.exports.draw = function (text, id) {
cd.yy.clear();
cd.parse(text);
log.info('Rendering diagram ' + text);
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//// Fetch the default direction, use TD if none was found
var diagram = d3.select('#' + id);
insertMarkers(diagram);
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//var svg = diagram.append('svg');
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// Layout graph, Create a new directed graph
var g = new dagre.graphlib.Graph();
// Set an object for the graph label
g.setGraph({});
// Default to assigning a new object as a label for each new edge.
g.setDefaultEdgeLabel(function () {
return {};
});
let classes = cDDb.getClasses();
for (let classDef of classes.values()) {
let node = drawClass(diagram, classDef);
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// Add nodes to the graph. The first argument is the node id. The second is
// metadata about the node. In this case we're going to add labels to each of
// our nodes.
g.setNode(node.id, node);
log.info('Org height: ' + node.height);
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//g.setNode("swilliams", { label: "Saul Williams", width: 160, height: 100 });
//g.setNode("bpitt", { label: "Brad Pitt", width: 108, height: 100 });
//g.setNode("hford", { label: "Harrison Ford", width: 168, height: 100 });
//g.setNode("lwilson", { label: "Luke Wilson", width: 144, height: 100 });
//g.setNode("kbacon", { label: "Kevin Bacon", width: 121, height: 100 });
}
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let relations = cDDb.getRelations();
for (let relation of relations) {
g.setEdge(getGraphId(relation.id1), getGraphId(relation.id2),{relation:relation});
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}
dagre.layout(g);
g.nodes().forEach(function (v) {
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log.debug('Node ' + v + ': ' + JSON.stringify(g.node(v)));
d3.select('#' + v).attr('transform', 'translate(' + (g.node(v).x - (g.node(v).width / 2)) + ',' + (g.node(v).y - (g.node(v).height / 2)) + ' )');
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//d3.select('#' +v +' rect').attr('x',(g.node(v).x-(g.node(v).width/2)))
//.attr('y',(g.node(v).y-(g.node(v).height/2)));
});
g.edges().forEach(function (e) {
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log.debug('Edge ' + e.v + ' -> ' + e.w + ': ' + JSON.stringify(g.edge(e)));
drawEdge(diagram, g.edge(e), g.edge(e).relation);
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});
//
diagram.attr('height', '100%');
diagram.attr('width', '100%');
//
//
//
//
//if(conf.useMaxWidth) {
// diagram.attr('height', '100%');
// diagram.attr('width', '100%');
// diagram.attr('style', 'max-width:' + (width) + 'px;');
//}else{
// diagram.attr('height',height);
// diagram.attr('width', width );
//}
//diagram.attr('viewBox', (box.startx-conf.diagramMarginX) + ' -' +conf.diagramMarginY + ' ' + width + ' ' + height);
};