Progress Indicator (PDF) (Angular)

The sample demonstrates how to export FlexGrid content to PDF files asynchronously, and how to display a progress indicator and cancel the export.

The progress argument of the PdfWebWorkerClient.exportGrid method is used to track the export progress, the web worker's terminate method is used to cancel the export.

This example uses Angular.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import '@grapecity/wijmo.chart.render'; import * as grid from '@grapecity/wijmo.grid'; import * as gridPdf from '@grapecity/wijmo.grid.pdf'; import * as gauge from '@grapecity/wijmo.gauge'; // import { Component, Inject, enableProdMode, NgModule, OnDestroy, ViewChild } from '@angular/core'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { BrowserModule } from '@angular/platform-browser'; import { DataService } from './app.data'; import { WjGridModule } from '@grapecity/wijmo.angular2.grid'; import { WjGaugeModule } from '@grapecity/wijmo.angular2.gauge'; // @Component({ selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent implements OnDestroy { data: any[]; @ViewChild('flexGrid') flexGrid: grid.FlexGrid; @ViewChild('progressBar') progressBar: gauge.LinearGauge; private _worker: Worker; // constructor(@Inject(DataService) private dataService: DataService) { this.data = dataService.getData(3000); } // export() { this.cancel(); // this._worker = this.loadWorker('./export-grid', () => { gridPdf.PdfWebWorkerClient.exportGrid(this._worker, this.flexGrid, 'FlexGrid.pdf', { scaleMode: gridPdf.ScaleMode.PageWidth, styles: { cellStyle: { backgroundColor: '#ffffff', borderColor: '#c6c6c6' }, altCellStyle: { backgroundColor: '#f9f9f9' }, groupCellStyle: { backgroundColor: '#dddddd' }, headerCellStyle: { backgroundColor: '#eaeaea' } } }, null, progress => this.progressBar.value = progress * 100 ); }); } // cancel() { if (this._worker) { this._worker.terminate(); } this.progressBar.value = 0; } // // Creates a web worker that executes a module from the specified URL. private loadWorker(url: string, ready: () => void) { let worker = new Worker('src/workers/worker-loader.js'); // worker.addEventListener('message', (e) => { if (e.data === '#ready#') { ready(); } }); // worker.postMessage({ url: url }); // return worker; } // ngOnDestroy() { if (this._worker) { this._worker.terminate(); } } } // @NgModule({ imports: [WjGridModule, WjGaugeModule, BrowserModule], declarations: [AppComponent], providers: [DataService], bootstrap: [AppComponent] }) export class AppModule { } // enableProdMode(); // Bootstrap application with hash style navigation and global services. platformBrowserDynamic().bootstrapModule(AppModule);
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Progress Indicator</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/dist/zone.min.js"></script> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.js"></script> <script src="systemjs.config.js"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class="container-fluid"> <wj-flex-grid class="grid" #flexGrid [autoGenerateColumns]="false" [itemsSource]="data"> <wj-flex-grid-column header="ID" binding="id"></wj-flex-grid-column> <wj-flex-grid-column header="Country" binding="country"></wj-flex-grid-column> <wj-flex-grid-column header="Product" binding="product"></wj-flex-grid-column> <wj-flex-grid-column header="Amount" binding="amount" format="c"></wj-flex-grid-column> <wj-flex-grid-column header="Pending" binding="amount2" format="c2"></wj-flex-grid-column> <wj-flex-grid-column header="Discount" binding="discount" format="p1"></wj-flex-grid-column> <wj-flex-grid-column header="Active" binding="active"></wj-flex-grid-column> </wj-flex-grid> <div class="row "> <div class="col-md-6 col-xs-12 well well-sm"> <wj-linear-gauge #progressBar [isReadOnly]="true" [min]="0" [max]="100" [value]="0" [showText]="'Value'"> </wj-linear-gauge> <button class="btn btn-default" (click)="export()">Export</button> <button class="btn btn-default" (click)="cancel()">Cancel</button> </div> </div> </div>
import { Injectable } from '@angular/core'; // @Injectable() export class DataService { getData(count: number) { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], products = ['Widget', 'Gadget', 'Doohickey'], data = []; // for (let i = 0; i < count; i++) { let countryId = Math.floor(Math.random() * countries.length), productId = Math.floor(Math.random() * products.length); // let item = { id: i, country: countries[countryId], product: products[productId], amount: Math.random() * 10000, amount2: Math.random() * 10000, discount: Math.random() / 4, active: i % 4 == 0 }; // data.push(item); } // return data; } }
.wj-flexgrid { height: 400px; margin: 6px 0; } .wj-gauge { margin: 20px auto; }
import { PdfWebWorker } from '@grapecity/wijmo.grid.pdf'; // PdfWebWorker.initExportGrid();
(function (global) { System.config({ transpiler: 'ts', typescriptOptions: { tsconfig: true }, meta: { 'typescript': { "exports": "ts" }, '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'core-js': 'npm:core-js/client/shim.min.js', 'zone': 'npm:zone.js/dist/zone.min.js', //'reflect-metadata': 'npm:reflect-metadata/Reflect.js', 'rxjs': 'npm:rxjs/bundles/rxjs.umd.min.js', //'rxjs': 'npm:rxjs', //'rxjs/operators': 'npm:rxjs/operators', '@angular/core': 'npm:@angular/core/bundles/core.umd.min.js', '@angular/common': 'npm:@angular/common/bundles/common.umd.min.js', '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.min.js', '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.min.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.min.js', '@angular/http': 'npm:@angular/http/bundles/http.umd.min.js', '@angular/common/http': 'npm:@angular/common/bundles/common-http.umd.min.js', '@angular/router': 'npm:@angular/router/bundles/router.umd.min.js', '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.min.js', '@grapecity/wijmo': 'npm:@grapecity/wijmo/index.js', '@grapecity/wijmo.input': 'npm:@grapecity/wijmo.input/index.js', '@grapecity/wijmo.styles': 'npm:@grapecity/wijmo.styles', '@grapecity/wijmo.cultures': 'npm:@grapecity/wijmo.cultures', '@grapecity/wijmo.chart': 'npm:@grapecity/wijmo.chart/index.js', '@grapecity/wijmo.chart.analytics': 'npm:@grapecity/wijmo.chart.analytics/index.js', '@grapecity/wijmo.chart.animation': 'npm:@grapecity/wijmo.chart.animation/index.js', '@grapecity/wijmo.chart.annotation': 'npm:@grapecity/wijmo.chart.annotation/index.js', '@grapecity/wijmo.chart.finance': 'npm:@grapecity/wijmo.chart.finance/index.js', '@grapecity/wijmo.chart.finance.analytics': 'npm:@grapecity/wijmo.chart.finance.analytics/index.js', '@grapecity/wijmo.chart.hierarchical': 'npm:@grapecity/wijmo.chart.hierarchical/index.js', '@grapecity/wijmo.chart.interaction': 'npm:@grapecity/wijmo.chart.interaction/index.js', '@grapecity/wijmo.chart.radar': 'npm:@grapecity/wijmo.chart.radar/index.js', '@grapecity/wijmo.chart.render': 'npm:@grapecity/wijmo.chart.render/index.js', '@grapecity/wijmo.chart.webgl': 'npm:@grapecity/wijmo.chart.webgl/index.js', '@grapecity/wijmo.gauge': 'npm:@grapecity/wijmo.gauge/index.js', '@grapecity/wijmo.grid': 'npm:@grapecity/wijmo.grid/index.js', '@grapecity/wijmo.grid.detail': 'npm:@grapecity/wijmo.grid.detail/index.js', '@grapecity/wijmo.grid.filter': 'npm:@grapecity/wijmo.grid.filter/index.js', '@grapecity/wijmo.grid.search': 'npm:@grapecity/wijmo.grid.search/index.js', '@grapecity/wijmo.grid.grouppanel': 'npm:@grapecity/wijmo.grid.grouppanel/index.js', '@grapecity/wijmo.grid.multirow': 'npm:@grapecity/wijmo.grid.multirow/index.js', '@grapecity/wijmo.grid.transposed': 'npm:@grapecity/wijmo.grid.transposed/index.js', '@grapecity/wijmo.grid.pdf': 'npm:@grapecity/wijmo.grid.pdf/index.js', '@grapecity/wijmo.grid.sheet': 'npm:@grapecity/wijmo.grid.sheet/index.js', '@grapecity/wijmo.grid.xlsx': 'npm:@grapecity/wijmo.grid.xlsx/index.js', '@grapecity/wijmo.grid.selector': 'npm:@grapecity/wijmo.grid.selector/index.js', '@grapecity/wijmo.grid.cellmaker': 'npm:@grapecity/wijmo.grid.cellmaker/index.js', '@grapecity/wijmo.nav': 'npm:@grapecity/wijmo.nav/index.js', '@grapecity/wijmo.odata': 'npm:@grapecity/wijmo.odata/index.js', '@grapecity/wijmo.olap': 'npm:@grapecity/wijmo.olap/index.js', '@grapecity/wijmo.pdf': 'npm:@grapecity/wijmo.pdf/index.js', '@grapecity/wijmo.viewer': 'npm:@grapecity/wijmo.viewer/index.js', '@grapecity/wijmo.xlsx': 'npm:@grapecity/wijmo.xlsx/index.js', '@grapecity/wijmo.undo': 'npm:@grapecity/wijmo.undo/index.js', '@grapecity/wijmo.interop.grid': 'npm:@grapecity/wijmo.interop.grid/index.js', '@grapecity/wijmo.touch': 'npm:@grapecity/wijmo.touch/index.js', '@grapecity/wijmo.cloud': 'npm:@grapecity/wijmo.cloud/index.js', "@grapecity/wijmo.angular2.chart.analytics": "npm:@grapecity/wijmo.angular2.chart.analytics/index.js", "@grapecity/wijmo.angular2.chart.animation": "npm:@grapecity/wijmo.angular2.chart.animation/index.js", "@grapecity/wijmo.angular2.chart.annotation": "npm:@grapecity/wijmo.angular2.chart.annotation/index.js", "@grapecity/wijmo.angular2.chart.finance.analytics": "npm:@grapecity/wijmo.angular2.chart.finance.analytics/index.js", "@grapecity/wijmo.angular2.chart.finance": "npm:@grapecity/wijmo.angular2.chart.finance/index.js", "@grapecity/wijmo.angular2.chart.hierarchical": "npm:@grapecity/wijmo.angular2.chart.hierarchical/index.js", "@grapecity/wijmo.angular2.chart.interaction": "npm:@grapecity/wijmo.angular2.chart.interaction/index.js", "@grapecity/wijmo.angular2.chart.radar": "npm:@grapecity/wijmo.angular2.chart.radar/index.js", "@grapecity/wijmo.angular2.chart": "npm:@grapecity/wijmo.angular2.chart/index.js", "@grapecity/wijmo.angular2.core": "npm:@grapecity/wijmo.angular2.core/index.js", "@grapecity/wijmo.angular2.gauge": "npm:@grapecity/wijmo.angular2.gauge/index.js", "@grapecity/wijmo.angular2.grid.detail": "npm:@grapecity/wijmo.angular2.grid.detail/index.js", "@grapecity/wijmo.angular2.grid.filter": "npm:@grapecity/wijmo.angular2.grid.filter/index.js", "@grapecity/wijmo.angular2.grid.grouppanel": "npm:@grapecity/wijmo.angular2.grid.grouppanel/index.js", "@grapecity/wijmo.angular2.grid.search": "npm:@grapecity/wijmo.angular2.grid.search/index.js", "@grapecity/wijmo.angular2.grid.multirow": "npm:@grapecity/wijmo.angular2.grid.multirow/index.js", "@grapecity/wijmo.angular2.grid.sheet": "npm:@grapecity/wijmo.angular2.grid.sheet/index.js", '@grapecity/wijmo.angular2.grid.transposed': 'npm:@grapecity/wijmo.angular2.grid.transposed/index.js', "@grapecity/wijmo.angular2.grid": "npm:@grapecity/wijmo.angular2.grid/index.js", "@grapecity/wijmo.angular2.input": "npm:@grapecity/wijmo.angular2.input/index.js", "@grapecity/wijmo.angular2.olap": "npm:@grapecity/wijmo.angular2.olap/index.js", "@grapecity/wijmo.angular2.viewer": "npm:@grapecity/wijmo.angular2.viewer/index.js", "@grapecity/wijmo.angular2.nav": "npm:@grapecity/wijmo.angular2.nav/index.js", "@grapecity/wijmo.angular2.directivebase": "npm:@grapecity/wijmo.angular2.directivebase/index.js", 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'jszip': 'npm:jszip/dist/jszip.min.js', 'typescript': 'npm:typescript/lib/typescript.js', //'typescript': 'https://unpkg.com/typescript@3.2.2', 'ts': 'npm:plugin-typescript/lib/plugin.js', 'css': 'npm:systemjs-plugin-css/css.js' }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'ts' }, rxjs: { defaultExtension: 'js' }, // 'rxjs': {main: 'index.js', defaultExtension: 'js' }, // 'rxjs/ajax': {main: 'index.js', defaultExtension: 'js' }, //'rxjs/operators': {main: 'index.js', defaultExtension: 'js' }, // 'rxjs/testing': {main: 'index.js', defaultExtension: 'js' }, // 'rxjs/webSocket': {main: 'index.js', defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);