mirror of
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504 lines
14 KiB
JavaScript
504 lines
14 KiB
JavaScript
import graph from './graphDb'
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import flow from './parser/flow'
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import dot from './parser/dot'
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import d3 from '../../d3'
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import dagreD3 from 'dagre-d3-renderer'
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import { logger } from '../../logger'
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var conf = {
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}
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export const setConf = function (cnf) {
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var keys = Object.keys(cnf)
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var i
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for (i = 0; i < keys.length; i++) {
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conf[keys[i]] = cnf[keys[i]]
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}
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}
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/**
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* Function that adds the vertices found in the graph definition to the graph to be rendered.
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* @param vert Object containing the vertices.
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* @param g The graph that is to be drawn.
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*/
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export const addVertices = function (vert, g) {
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var keys = Object.keys(vert)
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var styleFromStyleArr = function (styleStr, arr) {
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var i
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// Create a compound style definition from the style definitions found for the node in the graph definition
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for (i = 0; i < arr.length; i++) {
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if (typeof arr[i] !== 'undefined') {
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styleStr = styleStr + arr[i] + ';'
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}
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}
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return styleStr
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}
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// Iterate through each item in the vertice object (containing all the vertices found) in the graph definition
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keys.forEach(function (id) {
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var vertice = vert[id]
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var verticeText
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/**
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* Variable for storing the classes for the vertice
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* @type {string}
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*/
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var classStr = ''
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if (vertice.classes.length > 0) {
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classStr = vertice.classes.join(' ')
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}
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/**
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* Variable for storing the extracted style for the vertice
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* @type {string}
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*/
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var style = ''
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// Create a compound style definition from the style definitions found for the node in the graph definition
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style = styleFromStyleArr(style, vertice.styles)
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// Use vertice id as text in the box if no text is provided by the graph definition
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if (typeof vertice.text === 'undefined') {
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verticeText = vertice.id
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} else {
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verticeText = vertice.text
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}
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var labelTypeStr = ''
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if (conf.htmlLabels) {
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labelTypeStr = 'html'
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verticeText = verticeText.replace(/fa:fa[\w-]+/g, function (s) {
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return '<i class="fa ' + s.substring(3) + '"></i>'
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})
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} else {
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var svgLabel = document.createElementNS('http://www.w3.org/2000/svg', 'text')
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var rows = verticeText.split(/<br>/)
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var j = 0
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for (j = 0; j < rows.length; j++) {
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var tspan = document.createElementNS('http://www.w3.org/2000/svg', 'tspan')
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tspan.setAttributeNS('http://www.w3.org/XML/1998/namespace', 'xml:space', 'preserve')
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tspan.setAttribute('dy', '1em')
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tspan.setAttribute('x', '1')
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tspan.textContent = rows[j]
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svgLabel.appendChild(tspan)
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}
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labelTypeStr = 'svg'
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verticeText = svgLabel
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}
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var radious = 0
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var _shape = ''
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// Set the shape based parameters
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switch (vertice.type) {
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case 'round':
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radious = 5
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_shape = 'rect'
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break
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case 'square':
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_shape = 'rect'
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break
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case 'diamond':
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_shape = 'question'
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break
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case 'odd':
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_shape = 'rect_left_inv_arrow'
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break
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case 'odd_right':
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_shape = 'rect_left_inv_arrow'
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break
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case 'circle':
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_shape = 'circle'
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break
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case 'ellipse':
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_shape = 'ellipse'
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break
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case 'group':
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_shape = 'rect'
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// Need to create a text node if using svg labels, see #367
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verticeText = conf.htmlLabels ? '' : document.createElementNS('http://www.w3.org/2000/svg', 'text')
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break
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default:
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_shape = 'rect'
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}
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// Add the node
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g.setNode(vertice.id, { labelType: labelTypeStr, shape: _shape, label: verticeText, rx: radious, ry: radious, 'class': classStr, style: style, id: vertice.id })
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})
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}
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/**
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* Add edges to graph based on parsed graph defninition
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* @param {Object} edges The edges to add to the graph
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* @param {Object} g The graph object
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*/
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export const addEdges = function (edges, g) {
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var cnt = 0
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var defaultStyle
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if (typeof edges.defaultStyle !== 'undefined') {
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defaultStyle = edges.defaultStyle.toString().replace(/,/g, ';')
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}
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edges.forEach(function (edge) {
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cnt++
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var edgeData = {}
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// Set link type for rendering
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if (edge.type === 'arrow_open') {
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edgeData.arrowhead = 'none'
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} else {
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edgeData.arrowhead = 'normal'
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}
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var style = ''
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if (typeof edge.style !== 'undefined') {
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edge.style.forEach(function (s) {
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style = style + s + ';'
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})
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} else {
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switch (edge.stroke) {
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case 'normal':
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style = 'fill:none'
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if (typeof defaultStyle !== 'undefined') {
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style = defaultStyle
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}
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break
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case 'dotted':
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style = 'stroke: #333; fill:none;stroke-width:2px;stroke-dasharray:3;'
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break
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case 'thick':
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style = 'stroke: #333; stroke-width: 3.5px;fill:none'
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break
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}
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}
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edgeData.style = style
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if (typeof edge.interpolate !== 'undefined') {
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edgeData.lineInterpolate = edge.interpolate
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} else {
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if (typeof edges.defaultInterpolate !== 'undefined') {
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edgeData.lineInterpolate = edges.defaultInterpolate
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}
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}
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if (typeof edge.text === 'undefined') {
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if (typeof edge.style !== 'undefined') {
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edgeData.arrowheadStyle = 'fill: #333'
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}
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} else {
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edgeData.arrowheadStyle = 'fill: #333'
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if (typeof edge.style === 'undefined') {
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edgeData.labelpos = 'c'
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if (conf.htmlLabels) {
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edgeData.labelType = 'html'
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edgeData.label = '<span class="edgeLabel">' + edge.text + '</span>'
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} else {
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edgeData.labelType = 'text'
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edgeData.style = 'stroke: #333; stroke-width: 1.5px;fill:none'
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edgeData.label = edge.text.replace(/<br>/g, '\n')
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}
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} else {
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edgeData.label = edge.text.replace(/<br>/g, '\n')
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}
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}
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// Add the edge to the graph
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g.setEdge(edge.start, edge.end, edgeData, cnt)
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})
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}
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/**
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* Returns the all the styles from classDef statements in the graph definition.
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* @returns {object} classDef styles
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*/
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export const getClasses = function (text, isDot) {
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var parser
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graph.clear()
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if (isDot) {
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parser = dot.parser
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} else {
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parser = flow.parser
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}
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parser.yy = graph
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// Parse the graph definition
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parser.parse(text)
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var classes = graph.getClasses()
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// Add default class if undefined
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if (typeof (classes.default) === 'undefined') {
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classes.default = { id: 'default' }
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classes.default.styles = []
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classes.default.clusterStyles = ['rx:4px', 'fill: rgb(255, 255, 222)', 'rx: 4px', 'stroke: rgb(170, 170, 51)', 'stroke-width: 1px']
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classes.default.nodeLabelStyles = ['fill:#000', 'stroke:none', 'font-weight:300', 'font-family:"Helvetica Neue",Helvetica,Arial,sans-serf', 'font-size:14px']
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classes.default.edgeLabelStyles = ['fill:#000', 'stroke:none', 'font-weight:300', 'font-family:"Helvetica Neue",Helvetica,Arial,sans-serf', 'font-size:14px']
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}
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return classes
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}
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/**
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* Draws a flowchart in the tag with id: id based on the graph definition in text.
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* @param text
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* @param id
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*/
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export const draw = function (text, id, isDot) {
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logger.debug('Drawing flowchart')
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var parser
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graph.clear()
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if (isDot) {
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parser = dot.parser
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} else {
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parser = flow.parser
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}
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parser.yy = graph
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// Parse the graph definition
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try {
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parser.parse(text)
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} catch (err) {
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logger.debug('Parsing failed')
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}
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// Fetch the default direction, use TD if none was found
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var dir
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dir = graph.getDirection()
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if (typeof dir === 'undefined') {
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dir = 'TD'
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}
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// Create the input mermaid.graph
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var g = new dagreD3.graphlib.Graph({
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multigraph: true,
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compound: true
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})
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.setGraph({
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rankdir: dir,
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marginx: 20,
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marginy: 20
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})
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.setDefaultEdgeLabel(function () {
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return {}
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})
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var subG
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var subGraphs = graph.getSubGraphs()
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var i = 0
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for (i = subGraphs.length - 1; i >= 0; i--) {
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subG = subGraphs[i]
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graph.addVertex(subG.id, subG.title, 'group', undefined)
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}
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// Fetch the verices/nodes and edges/links from the parsed graph definition
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var vert = graph.getVertices()
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var edges = graph.getEdges()
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i = 0
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var j
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for (i = subGraphs.length - 1; i >= 0; i--) {
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subG = subGraphs[i]
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d3.selectAll('cluster').append('text')
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for (j = 0; j < subG.nodes.length; j++) {
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g.setParent(subG.nodes[j], subG.id)
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}
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}
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addVertices(vert, g)
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addEdges(edges, g)
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// Create the renderer
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var Render = dagreD3.render
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var render = new Render()
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// Add custom shape for rhombus type of boc (decision)
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render.shapes().question = function (parent, bbox, node) {
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var w = bbox.width
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var h = bbox.height
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var s = (w + h) * 0.8
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var points = [
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{ x: s / 2, y: 0 },
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{ x: s, y: -s / 2 },
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{ x: s / 2, y: -s },
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{ x: 0, y: -s / 2 }
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]
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var shapeSvg = parent.insert('polygon', ':first-child')
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.attr('points', points.map(function (d) {
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return d.x + ',' + d.y
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}).join(' '))
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.attr('rx', 5)
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.attr('ry', 5)
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.attr('transform', 'translate(' + (-s / 2) + ',' + (s * 2 / 4) + ')')
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node.intersect = function (point) {
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return dagreD3.intersect.polygon(node, points, point)
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}
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return shapeSvg
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}
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// Add custom shape for box with inverted arrow on left side
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render.shapes().rect_left_inv_arrow = function (parent, bbox, node) {
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var w = bbox.width
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var h = bbox.height
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var points = [
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{ x: -h / 2, y: 0 },
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{ x: w, y: 0 },
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{ x: w, y: -h },
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{ x: -h / 2, y: -h },
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{ x: 0, y: -h / 2 }
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]
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var shapeSvg = parent.insert('polygon', ':first-child')
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.attr('points', points.map(function (d) {
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return d.x + ',' + d.y
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}).join(' '))
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.attr('transform', 'translate(' + (-w / 2) + ',' + (h * 2 / 4) + ')')
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node.intersect = function (point) {
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return dagreD3.intersect.polygon(node, points, point)
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}
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return shapeSvg
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}
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// Add custom shape for box with inverted arrow on right side
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render.shapes().rect_right_inv_arrow = function (parent, bbox, node) {
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var w = bbox.width
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var h = bbox.height
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var points = [
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{ x: 0, y: 0 },
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{ x: w + h / 2, y: 0 },
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{ x: w, y: -h / 2 },
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{ x: w + h / 2, y: -h },
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{ x: 0, y: -h }
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]
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var shapeSvg = parent.insert('polygon', ':first-child')
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.attr('points', points.map(function (d) {
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return d.x + ',' + d.y
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}).join(' '))
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.attr('transform', 'translate(' + (-w / 2) + ',' + (h * 2 / 4) + ')')
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node.intersect = function (point) {
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return dagreD3.intersect.polygon(node, points, point)
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}
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return shapeSvg
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}
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// Add our custom arrow - an empty arrowhead
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render.arrows().none = function normal (parent, id, edge, type) {
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var marker = parent.append('marker')
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.attr('id', id)
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.attr('viewBox', '0 0 10 10')
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.attr('refX', 9)
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.attr('refY', 5)
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.attr('markerUnits', 'strokeWidth')
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.attr('markerWidth', 8)
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.attr('markerHeight', 6)
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.attr('orient', 'auto')
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var path = marker.append('path')
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.attr('d', 'M 0 0 L 0 0 L 0 0 z')
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dagreD3.util.applyStyle(path, edge[type + 'Style'])
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}
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// Override normal arrowhead defined in d3. Remove style & add class to allow css styling.
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render.arrows().normal = function normal (parent, id, edge, type) {
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var marker = parent.append('marker')
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.attr('id', id)
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.attr('viewBox', '0 0 10 10')
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.attr('refX', 9)
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.attr('refY', 5)
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.attr('markerUnits', 'strokeWidth')
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.attr('markerWidth', 8)
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.attr('markerHeight', 6)
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.attr('orient', 'auto')
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marker.append('path')
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.attr('d', 'M 0 0 L 10 5 L 0 10 z')
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.attr('class', 'arrowheadPath')
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.style('stroke-width', 1)
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.style('stroke-dasharray', '1,0')
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}
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// Set up an SVG group so that we can translate the final graph.
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var svg = d3.select('#' + id)
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// Run the renderer. This is what draws the final graph.
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var element = d3.select('#' + id + ' g')
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render(element, g)
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element.selectAll('g.node')
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.attr('title', function () {
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return graph.getTooltip(this.id)
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})
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if (conf.useMaxWidth) {
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// Center the graph
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svg.attr('height', '100%')
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svg.attr('width', conf.width)
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svg.attr('viewBox', '0 0 ' + (g.graph().width + 20) + ' ' + (g.graph().height + 20))
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svg.attr('style', 'max-width:' + (g.graph().width + 20) + 'px;')
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} else {
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// Center the graph
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svg.attr('height', g.graph().height)
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if (typeof conf.width === 'undefined') {
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svg.attr('width', g.graph().width)
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} else {
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svg.attr('width', conf.width)
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}
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svg.attr('viewBox', '0 0 ' + (g.graph().width + 20) + ' ' + (g.graph().height + 20))
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}
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// Index nodes
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graph.indexNodes('subGraph' + i)
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for (i = 0; i < subGraphs.length; i++) {
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subG = subGraphs[i]
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if (subG.title !== 'undefined') {
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var clusterRects = document.querySelectorAll('#' + id + ' #' + subG.id + ' rect')
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var clusterEl = document.querySelectorAll('#' + id + ' #' + subG.id)
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var xPos = clusterRects[0].x.baseVal.value
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var yPos = clusterRects[0].y.baseVal.value
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var width = clusterRects[0].width.baseVal.value
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var cluster = d3.select(clusterEl[0])
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var te = cluster.append('text')
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te.attr('x', xPos + width / 2)
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te.attr('y', yPos + 14)
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te.attr('fill', 'black')
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te.attr('stroke', 'none')
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te.attr('id', id + 'Text')
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te.style('text-anchor', 'middle')
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if (typeof subG.title === 'undefined') {
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te.text('Undef')
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} else {
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te.text(subG.title)
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}
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}
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}
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// Add label rects for non html labels
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if (!conf.htmlLabels) {
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var labels = document.querySelectorAll('#' + id + ' .edgeLabel .label')
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var k
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for (k = 0; k < labels.length; k++) {
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var label = labels[i]
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// Get dimensions of label
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var dim = label.getBBox()
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var rect = document.createElementNS('http://www.w3.org/2000/svg', 'rect')
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rect.setAttribute('rx', 0)
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rect.setAttribute('ry', 0)
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rect.setAttribute('width', dim.width)
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rect.setAttribute('height', dim.height)
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rect.setAttribute('style', 'fill:#e8e8e8;')
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label.insertBefore(rect, label.firstChild)
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}
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}
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}
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