PivotGrid(스파크라인 포함)

formatItem 이벤트를 사용하여 스파크라인, 스파크바 등의 사용자 정의 콘텐츠를 그리드 셀에 추가할 수 있습니다. 이 예제는 PivotEngine에 여분의 필드 2개를 추가하고, formatItem 이벤트를 사용하여 해당 필드에 스파크라인과 스파크바를 추가합니다. 또한 엔진의 getDetail 메서드를 사용하여 각 셀의 세부 정보 레코드를 검색하고, 해당 데이터를 사용하여 각 셀에 표시되는 svg 요소를 빌드합니다.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import '@grapecity/wijmo.touch'; // support drag/drop on touch devices import * as wijmo from '@grapecity/wijmo'; import * as olap from '@grapecity/wijmo.olap'; import { getData } from './data'; document.readyState === 'complete' ? init() : window.onload = init; function init() { // create a PivotEngine with a custom view let ng = new olap.PivotEngine({ autoGenerateFields: false, itemsSource: getData(1000), showColumnTotals: 'Subtotals', showRowTotals: 'Subtotals', fields: [ { binding: 'product', header: 'Product', width: 100 }, { binding: 'date', header: 'Date', format: 'yyyy \"Q\"q', width: 100 }, { binding: 'sales', header: 'Sales', format: 'n0', width: 100 }, { binding: 'sales', header: 'Sparklines', width: 100 }, { binding: 'sales', header: 'Sparkbars', width: 100 } ], rowFields: ['Date'], columnFields: ['Product'], valueFields: ['Sales', 'Sparklines', 'Sparkbars'] }); // show panel let pivotPanel = new olap.PivotPanel('#pivotPanel', { itemsSource: ng }); // show summary let pivotGrid = new olap.PivotGrid('#pivotGrid', { isReadOnly: true, itemsSource: ng, formatItem: formatItem // customize the grid cells }); // use formatItem to add sparklines and/or sparkbars let maxSparkLength = 25; function formatItem(s, e) { let ng = s.engine; // we want value fields in the cells panel if (e.panel == s.cells && ng.valueFields.length) { // we want the 'Sparklines' and 'Sparkbars' value fields let field = ng.valueFields[e.col % ng.valueFields.length], item = s.rows[e.row].dataItem, binding = s.columns[e.col].binding, spark = field.header.match(/Sparklines|Sparkbars/) != null; // add/remove spark class wijmo.toggleClass(e.cell, 'spark', spark); // add sparklines if (spark) { // if we have the data, show it if (item.sparkData) { let data = item.sparkData, delta = data[data.length - 1] - data[0]; e.cell.innerHTML = field.header == 'Sparklines' ? getSparklines(item.sparkData) : getSparkbars(item.sparkData); wijmo.toggleClass(e.cell, 'spark-up', delta > 0); wijmo.toggleClass(e.cell, 'spark-down', delta < 0); } // we don't have the data yet, so go get it if (!item.sparkData) { e.cell.innerHTML = ''; setTimeout(function () { let detail = ng.getDetail(item, binding), len = detail.length; if (len > maxSparkLength) { detail = detail.slice(len - maxSparkLength); } item.sparkData = detail.map(dataItem => dataItem.sales); s.invalidate(); // invalidate to show the sparlines }); } } } } // generate sparklines as SVG function getSparklines(data) { if (!data.length) { return ''; } let svg = '<svg width="100%" height="100%">', min = Math.min.apply(Math, data), max = Math.max.apply(Math, data), x1 = 0, y1 = scaleY(data[0], min, max); for (let i = 1; i < data.length; i++) { let x2 = Math.round((i) / (data.length - 1) * 100), y2 = scaleY(data[i], min, max); svg += `<line x1="${x1}%" y1="${y1}%" x2="${x2}%" y2="${y2}%" />`; x1 = x2; y1 = y2; } svg += '</svg>'; return svg; } function getSparkbars(data) { if (!data.length) { return ''; } let svg = '<svg width="100%" height="100%">', min = Math.min.apply(Math, data), max = Math.max.apply(Math, data), base = Math.min(max, Math.max(min, 0)), basey = scaleY(base, min, max), w = Math.round(100 / data.length) - 2; for (let i = 0; i < data.length; i++) { let x = i * Math.round(100 / data.length) + 1, y = scaleY(data[i], min, max); svg += `<rect x="${x}%" width="${w}%" y="${Math.min(y, basey)}%" height="${Math.abs(y - basey)}%" />`; } svg += `<rect x="0%" width="100%" height="1" y="${basey}%" opacity="0.5" />`; svg += '</svg>'; return svg; } // min <= value <= max function scaleY(value, min, max) { return min === max ? 0 : 100 - Math.round((value - min) / (max - min) * 100); } }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Grapecity Wijmo OLAP Pivot Grid Sparkline</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <div class="row"> <div class="col-xs-5"> <div id="pivotPanel"></div> </div> <div class="col-xs-7"> <div id="pivotGrid"></div> </div> </div> </div> </body> </html>
// export function getData(cnt) { let year = new Date().getFullYear(), data = []; // for (let i = 0; i < cnt; i++) { data.push({ product: randomInt(0, 1) ? 'Wijmo' : 'Aoba', country: randomInt(0, 1) ? 'USA' : 'Japan', active: i % 2 == 0, date: new Date(year - randomInt(0, 2), randomInt(0, 11), randomInt(0, 27) + 1), sales: randomInt(10, 20), downloads: randomInt(10, 200) }); } // return data; } // function randomInt(min, max) { return Math.floor(Math.random() * (max - min + 1) + min); }
.wj-pivotgrid { max-height: 400px; box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23); } .wj-pivotgrid .wj-cell.spark { padding: 8px; overflow: visible; } .wj-pivotgrid .wj-cell.spark svg { overflow: visible; stroke: currentColor; fill: currentColor; } .wj-pivotgrid .wj-cell.spark.spark-up svg { color: #009000; /* green for up */ } .wj-pivotgrid .wj-cell.spark.spark-down svg { color: #d00000; /* red for down */ } body { margin-bottom: 48pt; }
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