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https://github.com/mermaid-js/mermaid.git
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Merge branch 'develop' into pr/itsalam/4844
* develop: (517 commits) chore: Minor fixes chore: Build docs Use develop as base on develop branch. Update renovate json update link update announcement and blog pages Remove `--force` flag Tweak editor.bash update link chore: update browsers list Update integrations-community: add Drupal and module. Support Firefox Address review comments Change run symbol feat: Make the examples interactive in the documentation site. Add langium chore: update browsers list chore(deps): update all patch dependencies chore(deps): update all minor dependencies Update keywords and description ...
This commit is contained in:
Sidharth Vinod
909
packages/mermaid-flowchart-elk/src/flowRenderer-elk.js
Normal file
909
packages/mermaid-flowchart-elk/src/flowRenderer-elk.js
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@@ -0,0 +1,909 @@
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import { select, line, curveLinear } from 'd3';
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import { insertNode } from '../../mermaid/src/dagre-wrapper/nodes.js';
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import insertMarkers from '../../mermaid/src/dagre-wrapper/markers.js';
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import { insertEdgeLabel } from '../../mermaid/src/dagre-wrapper/edges.js';
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import { findCommonAncestor } from './render-utils.js';
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import { labelHelper } from '../../mermaid/src/dagre-wrapper/shapes/util.js';
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import { getConfig } from '../../mermaid/src/config.js';
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import { log } from '../../mermaid/src/logger.js';
|
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import utils from '../../mermaid/src/utils.js';
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import { setupGraphViewbox } from '../../mermaid/src/setupGraphViewbox.js';
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import common from '../../mermaid/src/diagrams/common/common.js';
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import { interpolateToCurve, getStylesFromArray } from '../../mermaid/src/utils.js';
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import ELK from 'elkjs/lib/elk.bundled.js';
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import { getLineFunctionsWithOffset } from '../../mermaid/src/utils/lineWithOffset.js';
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import { addEdgeMarkers } from '../../mermaid/src/dagre-wrapper/edgeMarker.js';
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const elk = new ELK();
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||||
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let portPos = {};
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||||
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const conf = {};
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export const setConf = function (cnf) {
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const keys = Object.keys(cnf);
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for (const key of keys) {
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conf[key] = cnf[key];
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||||
}
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||||
};
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||||
|
||||
let nodeDb = {};
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||||
|
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// /**
|
||||
// * Function that adds the vertices found during parsing to the graph to be rendered.
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||||
// *
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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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||||
// * @param svgId
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// * @param root
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// * @param doc
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// * @param diagObj
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// */
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export const addVertices = async function (vert, svgId, root, doc, diagObj, parentLookupDb, graph) {
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const svg = root.select(`[id="${svgId}"]`);
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const nodes = svg.insert('g').attr('class', 'nodes');
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const keys = Object.keys(vert);
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||||
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||||
// Iterate through each item in the vertex object (containing all the vertices found) in the graph definition
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await Promise.all(
|
||||
keys.map(async function (id) {
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const vertex = vert[id];
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||||
|
||||
/**
|
||||
* Variable for storing the classes for the vertex
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||||
*
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||||
* @type {string}
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||||
*/
|
||||
let classStr = 'default';
|
||||
if (vertex.classes.length > 0) {
|
||||
classStr = vertex.classes.join(' ');
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||||
}
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classStr = classStr + ' flowchart-label';
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const styles = getStylesFromArray(vertex.styles);
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||||
|
||||
// Use vertex id as text in the box if no text is provided by the graph definition
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let vertexText = vertex.text !== undefined ? vertex.text : vertex.id;
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||||
|
||||
// We create a SVG label, either by delegating to addHtmlLabel or manually
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let vertexNode;
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const labelData = { width: 0, height: 0 };
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||||
|
||||
const ports = [
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{
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id: vertex.id + '-west',
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layoutOptions: {
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'port.side': 'WEST',
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},
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},
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{
|
||||
id: vertex.id + '-east',
|
||||
layoutOptions: {
|
||||
'port.side': 'EAST',
|
||||
},
|
||||
},
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{
|
||||
id: vertex.id + '-south',
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||||
layoutOptions: {
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'port.side': 'SOUTH',
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||||
},
|
||||
},
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{
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id: vertex.id + '-north',
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||||
layoutOptions: {
|
||||
'port.side': 'NORTH',
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},
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||||
},
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||||
];
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||||
|
||||
let radius = 0;
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||||
let _shape = '';
|
||||
let layoutOptions = {};
|
||||
// Set the shape based parameters
|
||||
switch (vertex.type) {
|
||||
case 'round':
|
||||
radius = 5;
|
||||
_shape = 'rect';
|
||||
break;
|
||||
case 'square':
|
||||
_shape = 'rect';
|
||||
break;
|
||||
case 'diamond':
|
||||
_shape = 'question';
|
||||
layoutOptions = {
|
||||
portConstraints: 'FIXED_SIDE',
|
||||
};
|
||||
break;
|
||||
case 'hexagon':
|
||||
_shape = 'hexagon';
|
||||
break;
|
||||
case 'odd':
|
||||
_shape = 'rect_left_inv_arrow';
|
||||
break;
|
||||
case 'lean_right':
|
||||
_shape = 'lean_right';
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||||
break;
|
||||
case 'lean_left':
|
||||
_shape = 'lean_left';
|
||||
break;
|
||||
case 'trapezoid':
|
||||
_shape = 'trapezoid';
|
||||
break;
|
||||
case 'inv_trapezoid':
|
||||
_shape = 'inv_trapezoid';
|
||||
break;
|
||||
case 'odd_right':
|
||||
_shape = 'rect_left_inv_arrow';
|
||||
break;
|
||||
case 'circle':
|
||||
_shape = 'circle';
|
||||
break;
|
||||
case 'ellipse':
|
||||
_shape = 'ellipse';
|
||||
break;
|
||||
case 'stadium':
|
||||
_shape = 'stadium';
|
||||
break;
|
||||
case 'subroutine':
|
||||
_shape = 'subroutine';
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||||
break;
|
||||
case 'cylinder':
|
||||
_shape = 'cylinder';
|
||||
break;
|
||||
case 'group':
|
||||
_shape = 'rect';
|
||||
break;
|
||||
case 'doublecircle':
|
||||
_shape = 'doublecircle';
|
||||
break;
|
||||
default:
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||||
_shape = 'rect';
|
||||
}
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||||
|
||||
// Add the node
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||||
const node = {
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labelStyle: styles.labelStyle,
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shape: _shape,
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labelText: vertexText,
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||||
labelType: vertex.labelType,
|
||||
rx: radius,
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||||
ry: radius,
|
||||
class: classStr,
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||||
style: styles.style,
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||||
id: vertex.id,
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||||
link: vertex.link,
|
||||
linkTarget: vertex.linkTarget,
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||||
tooltip: diagObj.db.getTooltip(vertex.id) || '',
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||||
domId: diagObj.db.lookUpDomId(vertex.id),
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||||
haveCallback: vertex.haveCallback,
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||||
width: vertex.type === 'group' ? 500 : undefined,
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||||
dir: vertex.dir,
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||||
type: vertex.type,
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||||
props: vertex.props,
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||||
padding: getConfig().flowchart.padding,
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||||
};
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let boundingBox;
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||||
let nodeEl;
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||||
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||||
// Add the element to the DOM
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||||
if (node.type !== 'group') {
|
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nodeEl = await insertNode(nodes, node, vertex.dir);
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boundingBox = nodeEl.node().getBBox();
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} else {
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const svgLabel = doc.createElementNS('http://www.w3.org/2000/svg', 'text');
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// svgLabel.setAttribute('style', styles.labelStyle.replace('color:', 'fill:'));
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// const rows = vertexText.split(common.lineBreakRegex);
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// for (const row of rows) {
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// const tspan = doc.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 = row;
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// svgLabel.appendChild(tspan);
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// }
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// vertexNode = svgLabel;
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// const bbox = vertexNode.getBBox();
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const { shapeSvg, bbox } = await labelHelper(nodes, node, undefined, true);
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labelData.width = bbox.width;
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labelData.wrappingWidth = getConfig().flowchart.wrappingWidth;
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||||
labelData.height = bbox.height;
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labelData.labelNode = shapeSvg.node();
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node.labelData = labelData;
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||||
}
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||||
// const { shapeSvg, bbox } = await labelHelper(svg, node, undefined, true);
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||||
|
||||
const data = {
|
||||
id: vertex.id,
|
||||
ports: vertex.type === 'diamond' ? ports : [],
|
||||
// labelStyle: styles.labelStyle,
|
||||
// shape: _shape,
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||||
layoutOptions,
|
||||
labelText: vertexText,
|
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labelData,
|
||||
// labels: [{ text: vertexText }],
|
||||
// rx: radius,
|
||||
// ry: radius,
|
||||
// class: classStr,
|
||||
// style: styles.style,
|
||||
// link: vertex.link,
|
||||
// linkTarget: vertex.linkTarget,
|
||||
// tooltip: diagObj.db.getTooltip(vertex.id) || '',
|
||||
domId: diagObj.db.lookUpDomId(vertex.id),
|
||||
// haveCallback: vertex.haveCallback,
|
||||
width: boundingBox?.width,
|
||||
height: boundingBox?.height,
|
||||
// dir: vertex.dir,
|
||||
type: vertex.type,
|
||||
// props: vertex.props,
|
||||
// padding: getConfig().flowchart.padding,
|
||||
// boundingBox,
|
||||
el: nodeEl,
|
||||
parent: parentLookupDb.parentById[vertex.id],
|
||||
};
|
||||
// if (!Object.keys(parentLookupDb.childrenById).includes(vertex.id)) {
|
||||
// graph.children.push({
|
||||
// ...data,
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||||
// });
|
||||
// }
|
||||
nodeDb[node.id] = data;
|
||||
// log.trace('setNode', {
|
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// labelStyle: styles.labelStyle,
|
||||
// shape: _shape,
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||||
// labelText: vertexText,
|
||||
// rx: radius,
|
||||
// ry: radius,
|
||||
// class: classStr,
|
||||
// style: styles.style,
|
||||
// id: vertex.id,
|
||||
// domId: diagObj.db.lookUpDomId(vertex.id),
|
||||
// width: vertex.type === 'group' ? 500 : undefined,
|
||||
// type: vertex.type,
|
||||
// dir: vertex.dir,
|
||||
// props: vertex.props,
|
||||
// padding: getConfig().flowchart.padding,
|
||||
// parent: parentLookupDb.parentById[vertex.id],
|
||||
// });
|
||||
})
|
||||
);
|
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return graph;
|
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};
|
||||
|
||||
const getNextPosition = (position, edgeDirection, graphDirection) => {
|
||||
const portPos = {
|
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TB: {
|
||||
in: {
|
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north: 'north',
|
||||
},
|
||||
out: {
|
||||
south: 'west',
|
||||
west: 'east',
|
||||
east: 'south',
|
||||
},
|
||||
},
|
||||
LR: {
|
||||
in: {
|
||||
west: 'west',
|
||||
},
|
||||
out: {
|
||||
east: 'south',
|
||||
south: 'north',
|
||||
north: 'east',
|
||||
},
|
||||
},
|
||||
RL: {
|
||||
in: {
|
||||
east: 'east',
|
||||
},
|
||||
out: {
|
||||
west: 'north',
|
||||
north: 'south',
|
||||
south: 'west',
|
||||
},
|
||||
},
|
||||
BT: {
|
||||
in: {
|
||||
south: 'south',
|
||||
},
|
||||
out: {
|
||||
north: 'east',
|
||||
east: 'west',
|
||||
west: 'north',
|
||||
},
|
||||
},
|
||||
};
|
||||
portPos.TD = portPos.TB;
|
||||
return portPos[graphDirection][edgeDirection][position];
|
||||
// return 'south';
|
||||
};
|
||||
|
||||
const getNextPort = (node, edgeDirection, graphDirection) => {
|
||||
log.info('getNextPort', { node, edgeDirection, graphDirection });
|
||||
if (!portPos[node]) {
|
||||
switch (graphDirection) {
|
||||
case 'TB':
|
||||
case 'TD':
|
||||
portPos[node] = {
|
||||
inPosition: 'north',
|
||||
outPosition: 'south',
|
||||
};
|
||||
break;
|
||||
case 'BT':
|
||||
portPos[node] = {
|
||||
inPosition: 'south',
|
||||
outPosition: 'north',
|
||||
};
|
||||
break;
|
||||
case 'RL':
|
||||
portPos[node] = {
|
||||
inPosition: 'east',
|
||||
outPosition: 'west',
|
||||
};
|
||||
break;
|
||||
case 'LR':
|
||||
portPos[node] = {
|
||||
inPosition: 'west',
|
||||
outPosition: 'east',
|
||||
};
|
||||
break;
|
||||
}
|
||||
}
|
||||
const result = edgeDirection === 'in' ? portPos[node].inPosition : portPos[node].outPosition;
|
||||
|
||||
if (edgeDirection === 'in') {
|
||||
portPos[node].inPosition = getNextPosition(
|
||||
portPos[node].inPosition,
|
||||
edgeDirection,
|
||||
graphDirection
|
||||
);
|
||||
} else {
|
||||
portPos[node].outPosition = getNextPosition(
|
||||
portPos[node].outPosition,
|
||||
edgeDirection,
|
||||
graphDirection
|
||||
);
|
||||
}
|
||||
return result;
|
||||
};
|
||||
|
||||
const getEdgeStartEndPoint = (edge, dir) => {
|
||||
let source = edge.start;
|
||||
let target = edge.end;
|
||||
|
||||
// Save the original source and target
|
||||
const sourceId = source;
|
||||
const targetId = target;
|
||||
|
||||
const startNode = nodeDb[source];
|
||||
const endNode = nodeDb[target];
|
||||
|
||||
if (!startNode || !endNode) {
|
||||
return { source, target };
|
||||
}
|
||||
|
||||
if (startNode.type === 'diamond') {
|
||||
source = `${source}-${getNextPort(source, 'out', dir)}`;
|
||||
}
|
||||
|
||||
if (endNode.type === 'diamond') {
|
||||
target = `${target}-${getNextPort(target, 'in', dir)}`;
|
||||
}
|
||||
|
||||
// Add the edge to the graph
|
||||
return { source, target, sourceId, targetId };
|
||||
};
|
||||
|
||||
/**
|
||||
* Add edges to graph based on parsed graph definition
|
||||
*
|
||||
* @param {object} edges The edges to add to the graph
|
||||
* @param {object} g The graph object
|
||||
* @param cy
|
||||
* @param diagObj
|
||||
* @param graph
|
||||
* @param svg
|
||||
*/
|
||||
export const addEdges = function (edges, diagObj, graph, svg) {
|
||||
log.info('abc78 edges = ', edges);
|
||||
const labelsEl = svg.insert('g').attr('class', 'edgeLabels');
|
||||
let linkIdCnt = {};
|
||||
let dir = diagObj.db.getDirection();
|
||||
let defaultStyle;
|
||||
let defaultLabelStyle;
|
||||
|
||||
if (edges.defaultStyle !== undefined) {
|
||||
const defaultStyles = getStylesFromArray(edges.defaultStyle);
|
||||
defaultStyle = defaultStyles.style;
|
||||
defaultLabelStyle = defaultStyles.labelStyle;
|
||||
}
|
||||
|
||||
edges.forEach(function (edge) {
|
||||
// Identify Link
|
||||
const linkIdBase = 'L-' + edge.start + '-' + edge.end;
|
||||
// count the links from+to the same node to give unique id
|
||||
if (linkIdCnt[linkIdBase] === undefined) {
|
||||
linkIdCnt[linkIdBase] = 0;
|
||||
log.info('abc78 new entry', linkIdBase, linkIdCnt[linkIdBase]);
|
||||
} else {
|
||||
linkIdCnt[linkIdBase]++;
|
||||
log.info('abc78 new entry', linkIdBase, linkIdCnt[linkIdBase]);
|
||||
}
|
||||
let linkId = linkIdBase + '-' + linkIdCnt[linkIdBase];
|
||||
log.info('abc78 new link id to be used is', linkIdBase, linkId, linkIdCnt[linkIdBase]);
|
||||
const linkNameStart = 'LS-' + edge.start;
|
||||
const linkNameEnd = 'LE-' + edge.end;
|
||||
|
||||
const edgeData = { style: '', labelStyle: '' };
|
||||
edgeData.minlen = edge.length || 1;
|
||||
//edgeData.id = 'id' + cnt;
|
||||
|
||||
// Set link type for rendering
|
||||
if (edge.type === 'arrow_open') {
|
||||
edgeData.arrowhead = 'none';
|
||||
} else {
|
||||
edgeData.arrowhead = 'normal';
|
||||
}
|
||||
|
||||
// Check of arrow types, placed here in order not to break old rendering
|
||||
edgeData.arrowTypeStart = 'arrow_open';
|
||||
edgeData.arrowTypeEnd = 'arrow_open';
|
||||
|
||||
/* eslint-disable no-fallthrough */
|
||||
switch (edge.type) {
|
||||
case 'double_arrow_cross':
|
||||
edgeData.arrowTypeStart = 'arrow_cross';
|
||||
case 'arrow_cross':
|
||||
edgeData.arrowTypeEnd = 'arrow_cross';
|
||||
break;
|
||||
case 'double_arrow_point':
|
||||
edgeData.arrowTypeStart = 'arrow_point';
|
||||
case 'arrow_point':
|
||||
edgeData.arrowTypeEnd = 'arrow_point';
|
||||
break;
|
||||
case 'double_arrow_circle':
|
||||
edgeData.arrowTypeStart = 'arrow_circle';
|
||||
case 'arrow_circle':
|
||||
edgeData.arrowTypeEnd = 'arrow_circle';
|
||||
break;
|
||||
}
|
||||
|
||||
let style = '';
|
||||
let labelStyle = '';
|
||||
|
||||
switch (edge.stroke) {
|
||||
case 'normal':
|
||||
style = 'fill:none;';
|
||||
if (defaultStyle !== undefined) {
|
||||
style = defaultStyle;
|
||||
}
|
||||
if (defaultLabelStyle !== undefined) {
|
||||
labelStyle = defaultLabelStyle;
|
||||
}
|
||||
edgeData.thickness = 'normal';
|
||||
edgeData.pattern = 'solid';
|
||||
break;
|
||||
case 'dotted':
|
||||
edgeData.thickness = 'normal';
|
||||
edgeData.pattern = 'dotted';
|
||||
edgeData.style = 'fill:none;stroke-width:2px;stroke-dasharray:3;';
|
||||
break;
|
||||
case 'thick':
|
||||
edgeData.thickness = 'thick';
|
||||
edgeData.pattern = 'solid';
|
||||
edgeData.style = 'stroke-width: 3.5px;fill:none;';
|
||||
break;
|
||||
}
|
||||
if (edge.style !== undefined) {
|
||||
const styles = getStylesFromArray(edge.style);
|
||||
style = styles.style;
|
||||
labelStyle = styles.labelStyle;
|
||||
}
|
||||
|
||||
edgeData.style = edgeData.style += style;
|
||||
edgeData.labelStyle = edgeData.labelStyle += labelStyle;
|
||||
|
||||
if (edge.interpolate !== undefined) {
|
||||
edgeData.curve = interpolateToCurve(edge.interpolate, curveLinear);
|
||||
} else if (edges.defaultInterpolate !== undefined) {
|
||||
edgeData.curve = interpolateToCurve(edges.defaultInterpolate, curveLinear);
|
||||
} else {
|
||||
edgeData.curve = interpolateToCurve(conf.curve, curveLinear);
|
||||
}
|
||||
|
||||
if (edge.text === undefined) {
|
||||
if (edge.style !== undefined) {
|
||||
edgeData.arrowheadStyle = 'fill: #333';
|
||||
}
|
||||
} else {
|
||||
edgeData.arrowheadStyle = 'fill: #333';
|
||||
edgeData.labelpos = 'c';
|
||||
}
|
||||
|
||||
edgeData.labelType = edge.labelType;
|
||||
edgeData.label = edge.text.replace(common.lineBreakRegex, '\n');
|
||||
|
||||
if (edge.style === undefined) {
|
||||
edgeData.style = edgeData.style || 'stroke: #333; stroke-width: 1.5px;fill:none;';
|
||||
}
|
||||
|
||||
edgeData.labelStyle = edgeData.labelStyle.replace('color:', 'fill:');
|
||||
|
||||
edgeData.id = linkId;
|
||||
edgeData.classes = 'flowchart-link ' + linkNameStart + ' ' + linkNameEnd;
|
||||
|
||||
const labelEl = insertEdgeLabel(labelsEl, edgeData);
|
||||
|
||||
// calculate start and end points of the edge, note that the source and target
|
||||
// can be modified for shapes that have ports
|
||||
const { source, target, sourceId, targetId } = getEdgeStartEndPoint(edge, dir);
|
||||
log.debug('abc78 source and target', source, target);
|
||||
// Add the edge to the graph
|
||||
graph.edges.push({
|
||||
id: 'e' + edge.start + edge.end,
|
||||
sources: [source],
|
||||
targets: [target],
|
||||
sourceId,
|
||||
targetId,
|
||||
labelEl: labelEl,
|
||||
labels: [
|
||||
{
|
||||
width: edgeData.width,
|
||||
height: edgeData.height,
|
||||
orgWidth: edgeData.width,
|
||||
orgHeight: edgeData.height,
|
||||
text: edgeData.label,
|
||||
layoutOptions: {
|
||||
'edgeLabels.inline': 'true',
|
||||
'edgeLabels.placement': 'CENTER',
|
||||
},
|
||||
},
|
||||
],
|
||||
edgeData,
|
||||
});
|
||||
});
|
||||
return graph;
|
||||
};
|
||||
|
||||
// TODO: break out and share with dagre wrapper. The current code in dagre wrapper also adds
|
||||
// adds the line to the graph, but we don't need that here. This is why we can't use the dagre
|
||||
// wrapper directly for this
|
||||
/**
|
||||
* Add the markers to the edge depending on the type of arrow is
|
||||
* @param svgPath
|
||||
* @param edgeData
|
||||
* @param diagramType
|
||||
* @param arrowMarkerAbsolute
|
||||
* @param id
|
||||
*/
|
||||
const addMarkersToEdge = function (svgPath, edgeData, diagramType, arrowMarkerAbsolute, id) {
|
||||
let url = '';
|
||||
// Check configuration for absolute path
|
||||
if (arrowMarkerAbsolute) {
|
||||
url =
|
||||
window.location.protocol +
|
||||
'//' +
|
||||
window.location.host +
|
||||
window.location.pathname +
|
||||
window.location.search;
|
||||
url = url.replace(/\(/g, '\\(');
|
||||
url = url.replace(/\)/g, '\\)');
|
||||
}
|
||||
|
||||
// look in edge data and decide which marker to use
|
||||
addEdgeMarkers(svgPath, edgeData, url, id, diagramType);
|
||||
};
|
||||
|
||||
/**
|
||||
* Returns the all the styles from classDef statements in the graph definition.
|
||||
*
|
||||
* @param text
|
||||
* @param diagObj
|
||||
* @returns {Record<string, import('../../mermaid/src/diagram-api/types.js').DiagramStyleClassDef>} ClassDef styles
|
||||
*/
|
||||
export const getClasses = function (text, diagObj) {
|
||||
log.info('Extracting classes');
|
||||
return diagObj.db.getClasses();
|
||||
};
|
||||
|
||||
const addSubGraphs = function (db) {
|
||||
const parentLookupDb = { parentById: {}, childrenById: {} };
|
||||
const subgraphs = db.getSubGraphs();
|
||||
log.info('Subgraphs - ', subgraphs);
|
||||
subgraphs.forEach(function (subgraph) {
|
||||
subgraph.nodes.forEach(function (node) {
|
||||
parentLookupDb.parentById[node] = subgraph.id;
|
||||
if (parentLookupDb.childrenById[subgraph.id] === undefined) {
|
||||
parentLookupDb.childrenById[subgraph.id] = [];
|
||||
}
|
||||
parentLookupDb.childrenById[subgraph.id].push(node);
|
||||
});
|
||||
});
|
||||
|
||||
subgraphs.forEach(function (subgraph) {
|
||||
const data = { id: subgraph.id };
|
||||
if (parentLookupDb.parentById[subgraph.id] !== undefined) {
|
||||
data.parent = parentLookupDb.parentById[subgraph.id];
|
||||
}
|
||||
});
|
||||
return parentLookupDb;
|
||||
};
|
||||
|
||||
const calcOffset = function (src, dest, parentLookupDb) {
|
||||
const ancestor = findCommonAncestor(src, dest, parentLookupDb);
|
||||
if (ancestor === undefined || ancestor === 'root') {
|
||||
return { x: 0, y: 0 };
|
||||
}
|
||||
|
||||
const ancestorOffset = nodeDb[ancestor].offset;
|
||||
return { x: ancestorOffset.posX, y: ancestorOffset.posY };
|
||||
};
|
||||
|
||||
const insertEdge = function (edgesEl, edge, edgeData, diagObj, parentLookupDb, id) {
|
||||
const offset = calcOffset(edge.sourceId, edge.targetId, parentLookupDb);
|
||||
|
||||
const src = edge.sections[0].startPoint;
|
||||
const dest = edge.sections[0].endPoint;
|
||||
const segments = edge.sections[0].bendPoints ? edge.sections[0].bendPoints : [];
|
||||
|
||||
const segPoints = segments.map((segment) => [segment.x + offset.x, segment.y + offset.y]);
|
||||
const points = [
|
||||
[src.x + offset.x, src.y + offset.y],
|
||||
...segPoints,
|
||||
[dest.x + offset.x, dest.y + offset.y],
|
||||
];
|
||||
|
||||
const { x, y } = getLineFunctionsWithOffset(edge.edgeData);
|
||||
const curve = line().x(x).y(y).curve(curveLinear);
|
||||
const edgePath = edgesEl
|
||||
.insert('path')
|
||||
.attr('d', curve(points))
|
||||
.attr('class', 'path ' + edgeData.classes)
|
||||
.attr('fill', 'none');
|
||||
Object.entries(edgeData).forEach(([key, value]) => {
|
||||
if (key !== 'classes') {
|
||||
edgePath.attr(key, value);
|
||||
}
|
||||
});
|
||||
const edgeG = edgesEl.insert('g').attr('class', 'edgeLabel');
|
||||
const edgeWithLabel = select(edgeG.node().appendChild(edge.labelEl));
|
||||
const box = edgeWithLabel.node().firstChild.getBoundingClientRect();
|
||||
edgeWithLabel.attr('width', box.width);
|
||||
edgeWithLabel.attr('height', box.height);
|
||||
|
||||
edgeG.attr(
|
||||
'transform',
|
||||
`translate(${edge.labels[0].x + offset.x}, ${edge.labels[0].y + offset.y})`
|
||||
);
|
||||
addMarkersToEdge(edgePath, edgeData, diagObj.type, diagObj.arrowMarkerAbsolute, id);
|
||||
};
|
||||
|
||||
/**
|
||||
* Recursive function that iterates over an array of nodes and inserts the children of each node.
|
||||
* It also recursively populates the inserts the children of the children and so on.
|
||||
* @param {*} graph
|
||||
* @param nodeArray
|
||||
* @param parentLookupDb
|
||||
*/
|
||||
const insertChildren = (nodeArray, parentLookupDb) => {
|
||||
nodeArray.forEach((node) => {
|
||||
// Check if we have reached the end of the tree
|
||||
if (!node.children) {
|
||||
node.children = [];
|
||||
}
|
||||
// Check if the node has children
|
||||
const childIds = parentLookupDb.childrenById[node.id];
|
||||
// If the node has children, add them to the node
|
||||
if (childIds) {
|
||||
childIds.forEach((childId) => {
|
||||
node.children.push(nodeDb[childId]);
|
||||
});
|
||||
}
|
||||
// Recursive call
|
||||
insertChildren(node.children, parentLookupDb);
|
||||
});
|
||||
};
|
||||
|
||||
/**
|
||||
* Draws a flowchart in the tag with id: id based on the graph definition in text.
|
||||
*
|
||||
* @param text
|
||||
* @param id
|
||||
*/
|
||||
|
||||
export const draw = async function (text, id, _version, diagObj) {
|
||||
// Add temporary render element
|
||||
diagObj.db.clear();
|
||||
const { securityLevel, flowchart: conf } = getConfig();
|
||||
nodeDb = {};
|
||||
portPos = {};
|
||||
diagObj.db.setGen('gen-2');
|
||||
// Parse the graph definition
|
||||
diagObj.parser.parse(text);
|
||||
|
||||
const renderEl = select('body').append('div').attr('style', 'height:400px').attr('id', 'cy');
|
||||
let graph = {
|
||||
id: 'root',
|
||||
layoutOptions: {
|
||||
'elk.hierarchyHandling': 'INCLUDE_CHILDREN',
|
||||
'elk.layered.spacing.edgeNodeBetweenLayers': conf?.nodeSpacing ? `${conf.nodeSpacing}` : '30',
|
||||
// 'elk.layered.mergeEdges': 'true',
|
||||
'elk.direction': 'DOWN',
|
||||
// 'elk.ports.sameLayerEdges': true,
|
||||
// 'nodePlacement.strategy': 'SIMPLE',
|
||||
},
|
||||
children: [],
|
||||
edges: [],
|
||||
};
|
||||
log.info('Drawing flowchart using v3 renderer', elk);
|
||||
|
||||
// Set the direction,
|
||||
// Fetch the default direction, use TD if none was found
|
||||
let dir = diagObj.db.getDirection();
|
||||
switch (dir) {
|
||||
case 'BT':
|
||||
graph.layoutOptions['elk.direction'] = 'UP';
|
||||
break;
|
||||
case 'TB':
|
||||
graph.layoutOptions['elk.direction'] = 'DOWN';
|
||||
break;
|
||||
case 'LR':
|
||||
graph.layoutOptions['elk.direction'] = 'RIGHT';
|
||||
break;
|
||||
case 'RL':
|
||||
graph.layoutOptions['elk.direction'] = 'LEFT';
|
||||
break;
|
||||
}
|
||||
|
||||
// Find the root dom node to ne used in rendering
|
||||
// Handle root and document for when rendering in sandbox mode
|
||||
let sandboxElement;
|
||||
if (securityLevel === 'sandbox') {
|
||||
sandboxElement = select('#i' + id);
|
||||
}
|
||||
const root =
|
||||
securityLevel === 'sandbox'
|
||||
? select(sandboxElement.nodes()[0].contentDocument.body)
|
||||
: select('body');
|
||||
const doc = securityLevel === 'sandbox' ? sandboxElement.nodes()[0].contentDocument : document;
|
||||
|
||||
const svg = root.select(`[id="${id}"]`);
|
||||
// Define the supported markers for the diagram
|
||||
const markers = ['point', 'circle', 'cross'];
|
||||
|
||||
// Add the marker definitions to the svg as marker tags
|
||||
insertMarkers(svg, markers, diagObj.type, id);
|
||||
|
||||
// Fetch the vertices/nodes and edges/links from the parsed graph definition
|
||||
const vert = diagObj.db.getVertices();
|
||||
|
||||
// Setup nodes from the subgraphs with type group, these will be used
|
||||
// as nodes with children in the subgraph
|
||||
let subG;
|
||||
const subGraphs = diagObj.db.getSubGraphs();
|
||||
log.info('Subgraphs - ', subGraphs);
|
||||
for (let i = subGraphs.length - 1; i >= 0; i--) {
|
||||
subG = subGraphs[i];
|
||||
diagObj.db.addVertex(
|
||||
subG.id,
|
||||
{ text: subG.title, type: subG.labelType },
|
||||
'group',
|
||||
undefined,
|
||||
subG.classes,
|
||||
subG.dir
|
||||
);
|
||||
}
|
||||
|
||||
// debugger;
|
||||
// Add an element in the svg to be used to hold the subgraphs container
|
||||
// elements
|
||||
const subGraphsEl = svg.insert('g').attr('class', 'subgraphs');
|
||||
|
||||
// Create the lookup db for the subgraphs and their children to used when creating
|
||||
// the tree structured graph
|
||||
const parentLookupDb = addSubGraphs(diagObj.db);
|
||||
|
||||
// Add the nodes to the graph, this will entail creating the actual nodes
|
||||
// in order to get the size of the node. You can't get the size of a node
|
||||
// that is not in the dom so we need to add it to the dom, get the size
|
||||
// we will position the nodes when we get the layout from elkjs
|
||||
graph = await addVertices(vert, id, root, doc, diagObj, parentLookupDb, graph);
|
||||
|
||||
// Time for the edges, we start with adding an element in the node to hold the edges
|
||||
const edgesEl = svg.insert('g').attr('class', 'edges edgePath');
|
||||
// Fetch the edges form the parsed graph definition
|
||||
const edges = diagObj.db.getEdges();
|
||||
|
||||
// Add the edges to the graph, this will entail creating the actual edges
|
||||
graph = addEdges(edges, diagObj, graph, svg);
|
||||
|
||||
// Iterate through all nodes and add the top level nodes to the graph
|
||||
const nodes = Object.keys(nodeDb);
|
||||
nodes.forEach((nodeId) => {
|
||||
const node = nodeDb[nodeId];
|
||||
if (!node.parent) {
|
||||
graph.children.push(node);
|
||||
}
|
||||
// Subgraph
|
||||
if (parentLookupDb.childrenById[nodeId] !== undefined) {
|
||||
node.labels = [
|
||||
{
|
||||
text: node.labelText,
|
||||
layoutOptions: {
|
||||
'nodeLabels.placement': '[H_CENTER, V_TOP, INSIDE]',
|
||||
},
|
||||
width: node.labelData.width,
|
||||
height: node.labelData.height,
|
||||
// width: 100,
|
||||
// height: 100,
|
||||
},
|
||||
];
|
||||
delete node.x;
|
||||
delete node.y;
|
||||
delete node.width;
|
||||
delete node.height;
|
||||
}
|
||||
});
|
||||
|
||||
insertChildren(graph.children, parentLookupDb);
|
||||
log.info('after layout', JSON.stringify(graph, null, 2));
|
||||
const g = await elk.layout(graph);
|
||||
drawNodes(0, 0, g.children, svg, subGraphsEl, diagObj, 0);
|
||||
utils.insertTitle(svg, 'flowchartTitleText', conf.titleTopMargin, diagObj.db.getDiagramTitle());
|
||||
log.info('after layout', g);
|
||||
g.edges?.map((edge) => {
|
||||
insertEdge(edgesEl, edge, edge.edgeData, diagObj, parentLookupDb, id);
|
||||
});
|
||||
setupGraphViewbox({}, svg, conf.diagramPadding, conf.useMaxWidth);
|
||||
// Remove element after layout
|
||||
renderEl.remove();
|
||||
};
|
||||
|
||||
const drawNodes = (relX, relY, nodeArray, svg, subgraphsEl, diagObj, depth) => {
|
||||
nodeArray.forEach(function (node) {
|
||||
if (node) {
|
||||
nodeDb[node.id].offset = {
|
||||
posX: node.x + relX,
|
||||
posY: node.y + relY,
|
||||
x: relX,
|
||||
y: relY,
|
||||
depth,
|
||||
width: node.width,
|
||||
height: node.height,
|
||||
};
|
||||
if (node.type === 'group') {
|
||||
const subgraphEl = subgraphsEl.insert('g').attr('class', 'subgraph');
|
||||
subgraphEl
|
||||
.insert('rect')
|
||||
.attr('class', 'subgraph subgraph-lvl-' + (depth % 5) + ' node')
|
||||
.attr('x', node.x + relX)
|
||||
.attr('y', node.y + relY)
|
||||
.attr('width', node.width)
|
||||
.attr('height', node.height);
|
||||
const label = subgraphEl.insert('g').attr('class', 'label');
|
||||
const labelCentering = getConfig().flowchart.htmlLabels ? node.labelData.width / 2 : 0;
|
||||
label.attr(
|
||||
'transform',
|
||||
`translate(${node.labels[0].x + relX + node.x + labelCentering}, ${
|
||||
node.labels[0].y + relY + node.y + 3
|
||||
})`
|
||||
);
|
||||
label.node().appendChild(node.labelData.labelNode);
|
||||
|
||||
log.info('Id (UGH)= ', node.type, node.labels);
|
||||
} else {
|
||||
log.info('Id (UGH)= ', node.id);
|
||||
node.el.attr(
|
||||
'transform',
|
||||
`translate(${node.x + relX + node.width / 2}, ${node.y + relY + node.height / 2})`
|
||||
);
|
||||
}
|
||||
}
|
||||
});
|
||||
nodeArray.forEach(function (node) {
|
||||
if (node && node.type === 'group') {
|
||||
drawNodes(relX + node.x, relY + node.y, node.children, svg, subgraphsEl, diagObj, depth + 1);
|
||||
}
|
||||
});
|
||||
};
|
||||
|
||||
export default {
|
||||
getClasses,
|
||||
draw,
|
||||
};
|
||||
Reference in New Issue
Block a user