Angular Diagram - UI Customization

import { bootstrapApplication } from '@angular/platform-browser'; import { Component, ViewChild, enableProdMode, provideZoneChangeDetection } from '@angular/core'; import { HttpClient, provideHttpClient, withFetch } from '@angular/common/http'; import { DxDiagramModule, DxDiagramComponent } from 'devextreme-angular'; import { confirm } from 'devextreme/ui/dialog'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: './app.component.html', styleUrls: ['./app.component.css'], preserveWhitespaces: true, imports: [ DxDiagramModule, ], }) export class AppComponent { @ViewChild(DxDiagramComponent, { static: false }) diagram: DxDiagramComponent; constructor(http: HttpClient) { http.get('../../../../data/diagram-flow.json').subscribe({ next: (data) => { this.diagram.instance.import(JSON.stringify(data)); }, error: () => { throw new Error('Data Loading Error'); }, }); } onCustomCommand(e) { if (e.name === 'clear') { const result = confirm('Are you sure you want to clear the diagram? This action cannot be undone.', 'Warning'); result.then( (dialogResult) => { if (dialogResult) { e.component.import(''); } }, ); } } } bootstrapApplication(AppComponent, { providers: [ provideZoneChangeDetection({ eventCoalescing: true, runCoalescing: true }), provideHttpClient(withFetch()), ], });

::ng-deep #diagram { height: 900px; }

<!DOCTYPE html> <html lang="en"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/26.1.5/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/26.1.5/css/dx-diagram.min.css" /> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> <script src="https://cdn.jsdelivr.net/npm/zone.js@0.16.2/bundles/zone.umd.js"></script> <script src="./bundle.js" type="module"></script> </body> </html>

{ "page": { "width": 8400, "height": 11910, "pageWidth": 8400, "pageHeight": 11910, "pageLandscape": false, "gridSize": 180, "snapToGrid": true }, "connectors": [{ "key": "116", "points": [{ "x": 2160, "y": 1800 }, { "x": 2160, "y": 2340 } ], "zIndex": 0, "beginItemKey": "107", "beginConnectionPointIndex": 2, "endItemKey": "108", "endConnectionPointIndex": 0 }, { "key": "117", "points": [{ "x": 2160, "y": 3420 }, { "x": 2160, "y": 3960 } ], "zIndex": 0, "beginItemKey": "108", "beginConnectionPointIndex": 2, "endItemKey": "118", "endConnectionPointIndex": 0 }, { "key": "122", "points": [{ "x": 3420, "y": 4680 }, { "x": 5760, "y": 4680 } ], "zIndex": 0, "texts": { "0.45": "No" }, "beginItemKey": "118", "beginConnectionPointIndex": 1, "endItemKey": "121", "endConnectionPointIndex": 3 }, { "key": "123", "points": [{ "x": 6840, "y": 4140 }, { "x": 3420, "y": 2880 } ], "zIndex": 0, "beginItemKey": "121", "beginConnectionPointIndex": 0, "endItemKey": "108", "endConnectionPointIndex": 1 }, { "key": "126", "points": [{ "x": 3780, "y": 9180 }, { "x": 2880, "y": 10440 } ], "zIndex": 0, "texts": { "0.78": "A popular scenario?" }, "beginItemKey": "120", "beginConnectionPointIndex": 3, "endItemKey": "125", "endConnectionPointIndex": 0 }, { "key": "130", "points": [{ "x": 5220, "y": 9180 }, { "x": 6120, "y": 10440 } ], "zIndex": 0, "texts": { "0.77": "Missing info in\nthe documentation?" }, "beginItemKey": "120", "beginConnectionPointIndex": 1, "endItemKey": "127", "endConnectionPointIndex": 0 }, { "key": "132", "points": [{ "x": 2160, "y": 5400 }, { "x": 2160, "y": 6120 } ], "zIndex": 0, "texts": { "0.47": "Yes" }, "beginItemKey": "118", "beginConnectionPointIndex": 2, "endItemKey": "131", "endConnectionPointIndex": 0 }, { "key": "124", "points": [{ "x": 2160, "y": 7200 }, { "x": 4500, "y": 8820 } ], "zIndex": 0, "beginItemKey": "131", "beginConnectionPointIndex": 2, "endItemKey": "120", "endConnectionPointIndex": 0 }, { "key": "134", "points": [{ "x": 3420, "y": 6660 }, { "x": 5760, "y": 6660 } ], "zIndex": 0, "texts": { "0.5": "Need developer\nassistance?" }, "beginItemKey": "131", "beginConnectionPointIndex": 1, "endItemKey": "133", "endConnectionPointIndex": 3 }, { "key": "135", "points": [{ "x": 6840, "y": 7200 }, { "x": 4500, "y": 8820 } ], "zIndex": 0, "beginItemKey": "133", "beginConnectionPointIndex": 2, "endItemKey": "120", "endConnectionPointIndex": 0 } ], "shapes": [ { "key": "107", "type": "terminator", "text": "A new ticket", "x": 1440, "y": 1080, "width": 1440, "height": 720, "zIndex": 0 }, { "key": "108", "type": "process", "text": "Analyze\nthe issue", "x": 900, "y": 2340, "width": 2520, "height": 1080, "zIndex": 0 }, { "key": "118", "type": "decision", "text": "Do we have all\ninformation to\nwork with?", "x": 900, "y": 3960, "width": 2520, "height": 1440, "zIndex": 0 }, { "key": "120", "type": "terminator", "text": "Answered", "x": 3780, "y": 8640, "width": 1440, "height": 720, "zIndex": 0 }, { "key": "121", "type": "process", "text": "Request additional\ninformation or clarify\nthe scenario", "x": 5760, "y": 4140, "width": 2160, "height": 1080, "zIndex": 0 }, { "key": "125", "type": "process", "text": "Prepare an example in\nCode Central", "x": 1620, "y": 10440, "width": 2520, "height": 1080, "zIndex": 0 }, { "key": "127", "type": "process", "text": "Update the\ndocumentation", "x": 4860, "y": 10440, "width": 2520, "height": 1080, "zIndex": 0 }, { "key": "131", "type": "process", "text": "Process the\nticket", "x": 900, "y": 6120, "width": 2520, "height": 1080, "zIndex": 0 }, { "key": "133", "type": "process", "text": "Work with the\nR&D team", "x": 5760, "y": 6120, "width": 2160, "height": 1080, "zIndex": 0 }, { "key": "136", "type": "text", "locked": true, "text": "Ticket Processing Flow", "x": 360, "y": 360, "width": 7740, "height": 360, "zIndex": 0, "styleText": { "font-size": "14pt", "font-weight": "bold" } } ] }