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flowRenderer-elk.js
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import { select, line, curveLinear } from 'd3';
import { insertNode } from '../../mermaid/src/dagre-wrapper/nodes.js';
import insertMarkers from '../../mermaid/src/dagre-wrapper/markers.js';
import { insertEdgeLabel } from '../../mermaid/src/dagre-wrapper/edges.js';
import { findCommonAncestor } from './render-utils.js';
import { labelHelper } from '../../mermaid/src/dagre-wrapper/shapes/util.js';
import { getConfig } from '../../mermaid/src/config.js';
import { log } from '../../mermaid/src/logger.js';
import utils from '../../mermaid/src/utils.js';
import { setupGraphViewbox } from '../../mermaid/src/setupGraphViewbox.js';
import common from '../../mermaid/src/diagrams/common/common.js';
import { interpolateToCurve, getStylesFromArray } from '../../mermaid/src/utils.js';
import ELK from 'elkjs/lib/elk.bundled.js';
import { getLineFunctionsWithOffset } from '../../mermaid/src/utils/lineWithOffset.js';
import { addEdgeMarkers } from '../../mermaid/src/dagre-wrapper/edgeMarker.js';
const elk = new ELK();
let portPos = {};
const conf = {};
export const setConf = function (cnf) {
const keys = Object.keys(cnf);
for (const key of keys) {
conf[key] = cnf[key];
}
};
let nodeDb = {};
// /**
// * Function that adds the vertices found during parsing to the graph to be rendered.
// *
// * @param vert Object containing the vertices.
// * @param g The graph that is to be drawn.
// * @param svgId
// * @param root
// * @param doc
// * @param diagObj
// */
export const addVertices = async function (vert, svgId, root, doc, diagObj, parentLookupDb, graph) {
const svg = root.select(`[id="${svgId}"]`);
const nodes = svg.insert('g').attr('class', 'nodes');
const keys = [...vert.keys()];
// Iterate through each item in the vertex object (containing all the vertices found) in the graph definition
await Promise.all(
keys.map(async function (id) {
const vertex = vert.get(id);
/**
* Variable for storing the classes for the vertex
*
* @type {string}
*/
let classStr = 'default';
if (vertex.classes.length > 0) {
classStr = vertex.classes.join(' ');
}
classStr = classStr + ' flowchart-label';
const styles = getStylesFromArray(vertex.styles);
// Use vertex id as text in the box if no text is provided by the graph definition
let vertexText = vertex.text !== undefined ? vertex.text : vertex.id;
// We create a SVG label, either by delegating to addHtmlLabel or manually
let vertexNode;
const labelData = { width: 0, height: 0 };
const ports = [
{
id: vertex.id + '-west',
layoutOptions: {
'port.side': 'WEST',
},
},
{
id: vertex.id + '-east',
layoutOptions: {
'port.side': 'EAST',
},
},
{
id: vertex.id + '-south',
layoutOptions: {
'port.side': 'SOUTH',
},
},
{
id: vertex.id + '-north',
layoutOptions: {
'port.side': 'NORTH',
},
},
];
let radius = 0;
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';
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';
break;
case 'cylinder':
_shape = 'cylinder';
break;
case 'group':
_shape = 'rect';
break;
case 'doublecircle':
_shape = 'doublecircle';
break;
default:
_shape = 'rect';
}
// Add the node
const node = {
labelStyle: styles.labelStyle,
shape: _shape,
labelText: vertexText,
labelType: vertex.labelType,
rx: radius,
ry: radius,
class: classStr,
style: styles.style,
id: vertex.id,
link: vertex.link,
linkTarget: vertex.linkTarget,
tooltip: diagObj.db.getTooltip(vertex.id) || '',
domId: diagObj.db.lookUpDomId(vertex.id),
haveCallback: vertex.haveCallback,
width: vertex.type === 'group' ? 500 : undefined,
dir: vertex.dir,
type: vertex.type,
props: vertex.props,
padding: getConfig().flowchart.padding,
};
let boundingBox;
let nodeEl;
// Add the element to the DOM
if (node.type !== 'group') {
nodeEl = await insertNode(nodes, node, vertex.dir);
boundingBox = nodeEl.node().getBBox();
} else {
const svgLabel = doc.createElementNS('http://www.w3.org/2000/svg', 'text');
// svgLabel.setAttribute('style', styles.labelStyle.replace('color:', 'fill:'));
// const rows = vertexText.split(common.lineBreakRegex);
// for (const row of rows) {
// const tspan = doc.createElementNS('http://www.w3.org/2000/svg', 'tspan');
// tspan.setAttributeNS('http://www.w3.org/XML/1998/namespace', 'xml:space', 'preserve');
// tspan.setAttribute('dy', '1em');
// tspan.setAttribute('x', '1');
// tspan.textContent = row;
// svgLabel.appendChild(tspan);
// }
// vertexNode = svgLabel;
// const bbox = vertexNode.getBBox();
const { shapeSvg, bbox } = await labelHelper(nodes, node, undefined, true);
labelData.width = bbox.width;
labelData.wrappingWidth = getConfig().flowchart.wrappingWidth;
labelData.height = bbox.height;
labelData.labelNode = shapeSvg.node();
node.labelData = labelData;
}
// const { shapeSvg, bbox } = await labelHelper(svg, node, undefined, true);
const data = {
id: vertex.id,
ports: vertex.type === 'diamond' ? ports : [],
// labelStyle: styles.labelStyle,
// shape: _shape,
layoutOptions,
labelText: vertexText,
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,
// });
// }
nodeDb[node.id] = data;
// log.trace('setNode', {
// labelStyle: styles.labelStyle,
// shape: _shape,
// 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],
// });
})
);
return graph;
};
const getNextPosition = (position, edgeDirection, graphDirection) => {
const portPos = {
TB: {
in: {
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 {Map<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}, ${edge.labels[0].y + offset.y})`
);
addMarkersToEdge(edgePath, edgeData, diagObj.type, diagObj.arrowMarkerAbsolute, id);
};
/**
* Recursive function that iterates over an array of nodes and inserts the children of each node.
* It also recursively populates the inserts the children of the children and so on.
* @param {*} graph
* @param nodeArray
* @param parentLookupDb
*/
const insertChildren = (nodeArray, parentLookupDb) => {
nodeArray.forEach((node) => {
// Check if we have reached the end of the tree
if (!node.children) {
node.children = [];
}
// Check if the node has children
const childIds = parentLookupDb.childrenById[node.id];
// If the node has children, add them to the node
if (childIds) {
childIds.forEach((childId) => {
node.children.push(nodeDb[childId]);
});
}
// Recursive call
insertChildren(node.children, parentLookupDb);
});
};
/**
* Draws a flowchart in the tag with id: id based on the graph definition in text.
*
* @param text
* @param id
*/
export const draw = async function (text, id, _version, diagObj) {
const { securityLevel, flowchart: conf } = getConfig();
nodeDb = {};
portPos = {};
const renderEl = select('body').append('div').attr('style', 'height:400px').attr('id', 'cy');
let graph = {
id: 'root',
layoutOptions: {
'elk.hierarchyHandling': 'INCLUDE_CHILDREN',
'elk.layered.spacing.edgeNodeBetweenLayers': conf?.nodeSpacing ? `${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,
};