462 lines
15 KiB
JavaScript
462 lines
15 KiB
JavaScript
import { log } from '../logger.js';
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import createLabel from './createLabel.js';
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import { createText } from '../rendering-util/createText.js';
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import { line, curveBasis, select } from 'd3';
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import { getConfig } from '../diagram-api/diagramAPI.js';
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import utils from '../utils.js';
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import { evaluate } from '../diagrams/common/common.js';
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import { getLineFunctionsWithOffset } from '../utils/lineWithOffset.js';
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import { getSubGraphTitleMargins } from '../utils/subGraphTitleMargins.js';
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import { addEdgeMarkers } from './edgeMarker.js';
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let edgeLabels = {};
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let terminalLabels = {};
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export const clear = () => {
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edgeLabels = {};
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terminalLabels = {};
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};
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export const insertEdgeLabel = (elem, edge) => {
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const config = getConfig();
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const useHtmlLabels = evaluate(config.flowchart.htmlLabels);
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// Create the actual text element
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const labelElement =
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edge.labelType === 'markdown'
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? createText(
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elem,
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edge.label,
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{
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style: edge.labelStyle,
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useHtmlLabels,
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addSvgBackground: true,
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},
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config
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)
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: createLabel(edge.label, edge.labelStyle);
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// Create outer g, edgeLabel, this will be positioned after graph layout
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const edgeLabel = elem.insert('g').attr('class', 'edgeLabel');
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// Create inner g, label, this will be positioned now for centering the text
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const label = edgeLabel.insert('g').attr('class', 'label');
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label.node().appendChild(labelElement);
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// Center the label
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let bbox = labelElement.getBBox();
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if (useHtmlLabels) {
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const div = labelElement.children[0];
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const dv = select(labelElement);
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bbox = div.getBoundingClientRect();
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dv.attr('width', bbox.width);
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dv.attr('height', bbox.height);
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}
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label.attr('transform', 'translate(' + -bbox.width / 2 + ', ' + -bbox.height / 2 + ')');
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// Make element accessible by id for positioning
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edgeLabels[edge.id] = edgeLabel;
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// Update the abstract data of the edge with the new information about its width and height
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edge.width = bbox.width;
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edge.height = bbox.height;
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let fo;
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if (edge.startLabelLeft) {
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// Create the actual text element
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const startLabelElement = createLabel(edge.startLabelLeft, edge.labelStyle);
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const startEdgeLabelLeft = elem.insert('g').attr('class', 'edgeTerminals');
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const inner = startEdgeLabelLeft.insert('g').attr('class', 'inner');
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fo = inner.node().appendChild(startLabelElement);
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const slBox = startLabelElement.getBBox();
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inner.attr('transform', 'translate(' + -slBox.width / 2 + ', ' + -slBox.height / 2 + ')');
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if (!terminalLabels[edge.id]) {
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terminalLabels[edge.id] = {};
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}
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terminalLabels[edge.id].startLeft = startEdgeLabelLeft;
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setTerminalWidth(fo, edge.startLabelLeft);
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}
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if (edge.startLabelRight) {
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// Create the actual text element
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const startLabelElement = createLabel(edge.startLabelRight, edge.labelStyle);
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const startEdgeLabelRight = elem.insert('g').attr('class', 'edgeTerminals');
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const inner = startEdgeLabelRight.insert('g').attr('class', 'inner');
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fo = startEdgeLabelRight.node().appendChild(startLabelElement);
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inner.node().appendChild(startLabelElement);
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const slBox = startLabelElement.getBBox();
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inner.attr('transform', 'translate(' + -slBox.width / 2 + ', ' + -slBox.height / 2 + ')');
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if (!terminalLabels[edge.id]) {
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terminalLabels[edge.id] = {};
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}
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terminalLabels[edge.id].startRight = startEdgeLabelRight;
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setTerminalWidth(fo, edge.startLabelRight);
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}
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if (edge.endLabelLeft) {
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// Create the actual text element
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const endLabelElement = createLabel(edge.endLabelLeft, edge.labelStyle);
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const endEdgeLabelLeft = elem.insert('g').attr('class', 'edgeTerminals');
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const inner = endEdgeLabelLeft.insert('g').attr('class', 'inner');
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fo = inner.node().appendChild(endLabelElement);
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const slBox = endLabelElement.getBBox();
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inner.attr('transform', 'translate(' + -slBox.width / 2 + ', ' + -slBox.height / 2 + ')');
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endEdgeLabelLeft.node().appendChild(endLabelElement);
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if (!terminalLabels[edge.id]) {
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terminalLabels[edge.id] = {};
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}
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terminalLabels[edge.id].endLeft = endEdgeLabelLeft;
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setTerminalWidth(fo, edge.endLabelLeft);
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}
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if (edge.endLabelRight) {
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// Create the actual text element
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const endLabelElement = createLabel(edge.endLabelRight, edge.labelStyle);
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const endEdgeLabelRight = elem.insert('g').attr('class', 'edgeTerminals');
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const inner = endEdgeLabelRight.insert('g').attr('class', 'inner');
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fo = inner.node().appendChild(endLabelElement);
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const slBox = endLabelElement.getBBox();
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inner.attr('transform', 'translate(' + -slBox.width / 2 + ', ' + -slBox.height / 2 + ')');
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endEdgeLabelRight.node().appendChild(endLabelElement);
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if (!terminalLabels[edge.id]) {
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terminalLabels[edge.id] = {};
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}
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terminalLabels[edge.id].endRight = endEdgeLabelRight;
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setTerminalWidth(fo, edge.endLabelRight);
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}
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return labelElement;
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};
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/**
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* @param {any} fo
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* @param {any} value
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*/
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function setTerminalWidth(fo, value) {
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if (getConfig().flowchart.htmlLabels && fo) {
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fo.style.width = value.length * 9 + 'px';
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fo.style.height = '12px';
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}
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}
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export const positionEdgeLabel = (edge, paths) => {
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log.debug('Moving label abc88 ', edge.id, edge.label, edgeLabels[edge.id], paths);
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let path = paths.updatedPath ? paths.updatedPath : paths.originalPath;
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const siteConfig = getConfig();
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const { subGraphTitleTotalMargin } = getSubGraphTitleMargins(siteConfig);
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if (edge.label) {
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const el = edgeLabels[edge.id];
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let x = edge.x;
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let y = edge.y;
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if (path) {
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// // debugger;
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const pos = utils.calcLabelPosition(path);
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log.debug(
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'Moving label ' + edge.label + ' from (',
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x,
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',',
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y,
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') to (',
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pos.x,
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',',
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pos.y,
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') abc88'
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);
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if (paths.updatedPath) {
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x = pos.x;
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y = pos.y;
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}
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}
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el.attr('transform', `translate(${x}, ${y + subGraphTitleTotalMargin / 2})`);
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}
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//let path = paths.updatedPath ? paths.updatedPath : paths.originalPath;
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if (edge.startLabelLeft) {
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const el = terminalLabels[edge.id].startLeft;
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let x = edge.x;
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let y = edge.y;
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if (path) {
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// debugger;
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const pos = utils.calcTerminalLabelPosition(edge.arrowTypeStart ? 10 : 0, 'start_left', path);
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x = pos.x;
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y = pos.y;
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}
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el.attr('transform', `translate(${x}, ${y})`);
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}
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if (edge.startLabelRight) {
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const el = terminalLabels[edge.id].startRight;
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let x = edge.x;
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let y = edge.y;
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if (path) {
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// debugger;
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const pos = utils.calcTerminalLabelPosition(
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edge.arrowTypeStart ? 10 : 0,
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'start_right',
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path
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);
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x = pos.x;
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y = pos.y;
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}
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el.attr('transform', `translate(${x}, ${y})`);
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}
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if (edge.endLabelLeft) {
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const el = terminalLabels[edge.id].endLeft;
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let x = edge.x;
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let y = edge.y;
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if (path) {
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// debugger;
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const pos = utils.calcTerminalLabelPosition(edge.arrowTypeEnd ? 10 : 0, 'end_left', path);
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x = pos.x;
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y = pos.y;
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}
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el.attr('transform', `translate(${x}, ${y})`);
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}
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if (edge.endLabelRight) {
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const el = terminalLabels[edge.id].endRight;
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let x = edge.x;
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let y = edge.y;
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if (path) {
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// debugger;
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const pos = utils.calcTerminalLabelPosition(edge.arrowTypeEnd ? 10 : 0, 'end_right', path);
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x = pos.x;
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y = pos.y;
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}
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el.attr('transform', `translate(${x}, ${y})`);
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}
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};
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const outsideNode = (node, point) => {
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const x = node.x;
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const y = node.y;
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const dx = Math.abs(point.x - x);
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const dy = Math.abs(point.y - y);
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const w = node.width / 2;
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const h = node.height / 2;
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if (dx >= w || dy >= h) {
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return true;
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}
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return false;
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};
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export const intersection = (node, outsidePoint, insidePoint) => {
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log.debug(`intersection calc abc89:
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outsidePoint: ${JSON.stringify(outsidePoint)}
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insidePoint : ${JSON.stringify(insidePoint)}
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node : x:${node.x} y:${node.y} w:${node.width} h:${node.height}`);
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const x = node.x;
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const y = node.y;
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const dx = Math.abs(x - insidePoint.x);
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// const dy = Math.abs(y - insidePoint.y);
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const w = node.width / 2;
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let r = insidePoint.x < outsidePoint.x ? w - dx : w + dx;
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const h = node.height / 2;
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const Q = Math.abs(outsidePoint.y - insidePoint.y);
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const R = Math.abs(outsidePoint.x - insidePoint.x);
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if (Math.abs(y - outsidePoint.y) * w > Math.abs(x - outsidePoint.x) * h) {
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// Intersection is top or bottom of rect.
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let q = insidePoint.y < outsidePoint.y ? outsidePoint.y - h - y : y - h - outsidePoint.y;
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r = (R * q) / Q;
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const res = {
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x: insidePoint.x < outsidePoint.x ? insidePoint.x + r : insidePoint.x - R + r,
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y: insidePoint.y < outsidePoint.y ? insidePoint.y + Q - q : insidePoint.y - Q + q,
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};
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if (r === 0) {
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res.x = outsidePoint.x;
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res.y = outsidePoint.y;
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}
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if (R === 0) {
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res.x = outsidePoint.x;
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}
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if (Q === 0) {
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res.y = outsidePoint.y;
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}
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log.debug(`abc89 topp/bott calc, Q ${Q}, q ${q}, R ${R}, r ${r}`, res); // cspell: disable-line
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return res;
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} else {
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// Intersection onn sides of rect
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if (insidePoint.x < outsidePoint.x) {
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r = outsidePoint.x - w - x;
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} else {
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// r = outsidePoint.x - w - x;
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r = x - w - outsidePoint.x;
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}
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let q = (Q * r) / R;
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// OK let _x = insidePoint.x < outsidePoint.x ? insidePoint.x + R - r : insidePoint.x + dx - w;
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// OK let _x = insidePoint.x < outsidePoint.x ? insidePoint.x + R - r : outsidePoint.x + r;
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let _x = insidePoint.x < outsidePoint.x ? insidePoint.x + R - r : insidePoint.x - R + r;
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// let _x = insidePoint.x < outsidePoint.x ? insidePoint.x + R - r : outsidePoint.x + r;
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let _y = insidePoint.y < outsidePoint.y ? insidePoint.y + q : insidePoint.y - q;
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log.debug(`sides calc abc89, Q ${Q}, q ${q}, R ${R}, r ${r}`, { _x, _y });
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if (r === 0) {
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_x = outsidePoint.x;
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_y = outsidePoint.y;
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}
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if (R === 0) {
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_x = outsidePoint.x;
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}
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if (Q === 0) {
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_y = outsidePoint.y;
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}
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return { x: _x, y: _y };
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}
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};
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/**
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* This function will page a path and node where the last point(s) in the path is inside the node
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* and return an update path ending by the border of the node.
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*
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* @param {Array} _points
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* @param {any} boundaryNode
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* @returns {Array} Points
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*/
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const cutPathAtIntersect = (_points, boundaryNode) => {
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log.debug('abc88 cutPathAtIntersect', _points, boundaryNode);
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let points = [];
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let lastPointOutside = _points[0];
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let isInside = false;
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_points.forEach((point) => {
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// check if point is inside the boundary rect
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if (!outsideNode(boundaryNode, point) && !isInside) {
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// First point inside the rect found
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// Calc the intersection coord between the point anf the last point outside the rect
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const inter = intersection(boundaryNode, lastPointOutside, point);
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// // Check case where the intersection is the same as the last point
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let pointPresent = false;
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points.forEach((p) => {
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pointPresent = pointPresent || (p.x === inter.x && p.y === inter.y);
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});
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// // if (!pointPresent) {
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if (!points.some((e) => e.x === inter.x && e.y === inter.y)) {
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points.push(inter);
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}
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isInside = true;
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} else {
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// Outside
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lastPointOutside = point;
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// points.push(point);
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if (!isInside) {
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points.push(point);
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}
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}
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});
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return points;
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};
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export const insertEdge = function (elem, e, edge, clusterDb, diagramType, graph, id) {
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let points = edge.points;
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log.debug('abc88 InsertEdge: edge=', edge, 'e=', e);
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let pointsHasChanged = false;
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const tail = graph.node(e.v);
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var head = graph.node(e.w);
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if (head?.intersect && tail?.intersect) {
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points = points.slice(1, edge.points.length - 1);
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points.unshift(tail.intersect(points[0]));
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points.push(head.intersect(points[points.length - 1]));
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}
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if (edge.toCluster) {
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log.debug('to cluster abc88', clusterDb[edge.toCluster]);
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points = cutPathAtIntersect(edge.points, clusterDb[edge.toCluster].node);
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pointsHasChanged = true;
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}
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if (edge.fromCluster) {
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log.debug('from cluster abc88', clusterDb[edge.fromCluster]);
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points = cutPathAtIntersect(points.reverse(), clusterDb[edge.fromCluster].node).reverse();
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pointsHasChanged = true;
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}
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// The data for our line
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const lineData = points.filter((p) => !Number.isNaN(p.y));
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// This is the accessor function we talked about above
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let curve = curveBasis;
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// Currently only flowcharts get the curve from the settings, perhaps this should
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// be expanded to a common setting? Restricting it for now in order not to cause side-effects that
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// have not been thought through
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if (edge.curve && (diagramType === 'graph' || diagramType === 'flowchart')) {
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curve = edge.curve;
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}
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const { x, y } = getLineFunctionsWithOffset(edge);
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const lineFunction = line().x(x).y(y).curve(curve);
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// Construct stroke classes based on properties
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let strokeClasses;
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switch (edge.thickness) {
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case 'normal':
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strokeClasses = 'edge-thickness-normal';
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break;
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case 'thick':
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strokeClasses = 'edge-thickness-thick';
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break;
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case 'invisible':
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strokeClasses = 'edge-thickness-thick';
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break;
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default:
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strokeClasses = '';
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}
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switch (edge.pattern) {
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case 'solid':
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strokeClasses += ' edge-pattern-solid';
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break;
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case 'dotted':
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strokeClasses += ' edge-pattern-dotted';
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break;
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case 'dashed':
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strokeClasses += ' edge-pattern-dashed';
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break;
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}
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const svgPath = elem
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.append('path')
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.attr('d', lineFunction(lineData))
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.attr('id', edge.id)
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.attr('class', ' ' + strokeClasses + (edge.classes ? ' ' + edge.classes : ''))
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.attr('style', edge.style);
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// DEBUG code, adds a red circle at each edge coordinate
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// edge.points.forEach((point) => {
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// elem
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// .append('circle')
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// .style('stroke', 'red')
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// .style('fill', 'red')
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// .attr('r', 1)
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// .attr('cx', point.x)
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// .attr('cy', point.y);
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// });
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let url = '';
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// // TODO: Can we load this config only from the rendered graph type?
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if (getConfig().flowchart.arrowMarkerAbsolute || getConfig().state.arrowMarkerAbsolute) {
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url =
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window.location.protocol +
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'//' +
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window.location.host +
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window.location.pathname +
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window.location.search;
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url = url.replace(/\(/g, '\\(');
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url = url.replace(/\)/g, '\\)');
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}
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addEdgeMarkers(svgPath, edge, url, id, diagramType);
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let paths = {};
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if (pointsHasChanged) {
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paths.updatedPath = points;
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}
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paths.originalPath = edge.points;
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return paths;
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};
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