Backend API
import React, { useCallback, useRef } from 'react';
import {
Chart, CommonSeriesSettings, Series, Legend, Title, Subtitle,
} from 'devextreme-react/chart';
import { Button } from 'devextreme-react/button';
import { exportFromMarkup } from 'devextreme/viz/export';
import { Canvg } from 'canvg';
import { dataSource } from './data.ts';
import Form from './Form.tsx';
const barPadding = 0.3;
const prepareMarkup = (chartSVG, markup) => {
const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
svg.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
svg.setAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
svg.setAttribute('version', '1.1');
svg.setAttribute('width', '820px');
svg.setAttribute('height', '420px');
svg.innerHTML = markup;
const group = document.createElementNS('http://www.w3.org/2000/svg', 'g');
group.setAttribute('transform', 'translate(305,12)');
group.innerHTML = chartSVG;
svg.appendChild(group);
return svg;
};
function App() {
const childRef = useRef(null);
const chartRef = useRef(null);
const onClick = useCallback(() => {
exportFromMarkup(
prepareMarkup(chartRef.current.instance().svg(),
childRef.current.innerHTML), {
width: 820,
height: 420,
margin: 0,
format: 'png',
svgToCanvas(svg: Node, canvas) {
return new Promise((resolve) => {
const v = Canvg.fromString(
canvas.getContext("2d"),
new XMLSerializer().serializeToString(svg)
);
resolve(v.render());
});
},
},
);
}, []);
return (
<div id="chart-demo">
<div className="chart_environment">
<Form ref={childRef} />
<Chart
ref={chartRef}
id="chart"
dataSource={dataSource}
palette="Violet"
>
<CommonSeriesSettings barPadding={barPadding} argumentField="state" type="bar" />
<Series valueField="year1990" name="1990" />
<Series valueField="year2000" name="2000" />
<Series valueField="year2010" name="2010" />
<Series valueField="year2016" name="2016" />
<Series valueField="year2017" name="2017" />
<Legend verticalAlignment="bottom" horizontalAlignment="center" />
<Title text="Oil Production">
<Subtitle text="(in millions tonnes)" />
</Title>
</Chart>
</div>
<div className="controls-pane">
<Button
id="export"
width={145}
icon="export"
text="Export"
type="default"
onClick={onClick}
/>
</div>
</div>
);
}
export default App;
import React, { useCallback, useRef } from 'react';
import {
Chart,
CommonSeriesSettings,
Series,
Legend,
Title,
Subtitle,
} from 'devextreme-react/chart';
import { Button } from 'devextreme-react/button';
import { exportFromMarkup } from 'devextreme/viz/export';
import { Canvg } from 'canvg';
import { dataSource } from './data.js';
import Form from './Form.js';
const barPadding = 0.3;
const prepareMarkup = (chartSVG, markup) => {
const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
svg.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
svg.setAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
svg.setAttribute('version', '1.1');
svg.setAttribute('width', '820px');
svg.setAttribute('height', '420px');
svg.innerHTML = markup;
const group = document.createElementNS('http://www.w3.org/2000/svg', 'g');
group.setAttribute('transform', 'translate(305,12)');
group.innerHTML = chartSVG;
svg.appendChild(group);
return svg;
};
function App() {
const childRef = useRef(null);
const chartRef = useRef(null);
const onClick = useCallback(() => {
exportFromMarkup(prepareMarkup(chartRef.current.instance().svg(), childRef.current.innerHTML), {
width: 820,
height: 420,
margin: 0,
format: 'png',
svgToCanvas(svg, canvas) {
return new Promise((resolve) => {
const v = Canvg.fromString(
canvas.getContext('2d'),
new XMLSerializer().serializeToString(svg),
);
resolve(v.render());
});
},
});
}, []);
return (
<div id="chart-demo">
<div className="chart_environment">
<Form ref={childRef} />
<Chart
ref={chartRef}
id="chart"
dataSource={dataSource}
palette="Violet"
>
<CommonSeriesSettings
barPadding={barPadding}
argumentField="state"
type="bar"
/>
<Series
valueField="year1990"
name="1990"
/>
<Series
valueField="year2000"
name="2000"
/>
<Series
valueField="year2010"
name="2010"
/>
<Series
valueField="year2016"
name="2016"
/>
<Series
valueField="year2017"
name="2017"
/>
<Legend
verticalAlignment="bottom"
horizontalAlignment="center"
/>
<Title text="Oil Production">
<Subtitle text="(in millions tonnes)" />
</Title>
</Chart>
</div>
<div className="controls-pane">
<Button
id="export"
width={145}
icon="export"
text="Export"
type="default"
onClick={onClick}
/>
</div>
</div>
);
}
export default App;
import React from 'react';
const fontFamily = "'Segoe UI', 'Helvetica Neue', 'Trebuchet MS', Verdana, sans-serif";
const Form = React.forwardRef<HTMLDivElement, {}>((_, ref) => (
<div id="custom_markup_container" ref={ref}>
<svg width="820px" height="420px">
<path opacity="1" d="M 0 0 L 820 0 L 820 420 L 0 420 L 0 0" stroke="#999999" strokeWidth="1"
strokeLinecap="butt" fill="white" strokeLinejoin="miter"></path>
<path d="M 13 407 L 128 407 L 232 39 L 13 39" fill="#6D39C3"></path>
<path d="M 46 381 L 161 381 L 265 13 L 46 13" opacity="0.5" fill="#6D39C3"></path>
<text transform="translate(30,89)"
style={{
fill: '#FFFFFF', fontFamily, fontSize: 36, fontWeight: 'bold',
}}>
<tspan x="0" y="0">Export </tspan>
<tspan x="0" y="38">Custom</tspan>
<tspan x="0" y="76">Markup</tspan>
</text>
<text transform="translate(32,199)"
style={{
opacity: 0.8, fill: '#FFFFFF', fontFamily, fontSize: 14,
}}>
<tspan x="0" y="0">Export a chart with</tspan>
<tspan x="0" y="19.2">custom elements</tspan>
</text>
</svg>
</div>
));
Form.displayName = 'Form';
export default Form;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
export const dataSource = [{
state: 'Saudi Arabia',
year1990: 319.6,
year2000: 408.4,
year2010: 407,
year2016: 523,
year2017: 496.6,
}, {
state: 'USA',
year1990: 362.8,
year2000: 287.9,
year2010: 270.2,
year2016: 438,
year2017: 461.4,
}, {
state: 'China',
year1990: 138.3,
year2000: 163,
year2010: 203,
year2016: 199.7,
year2017: 191.5,
}];
window.exports = window.exports || {};
window.config = {
transpiler: 'ts',
typescriptOptions: {
module: 'system',
emitDecoratorMetadata: true,
experimentalDecorators: true,
jsx: 'react',
},
meta: {
'react': {
'esModule': true,
},
'typescript': {
'exports': 'ts',
},
'devextreme/time_zone_utils.js': {
'esModule': true,
},
'devextreme/localization.js': {
'esModule': true,
},
'devextreme/viz/palette.js': {
'esModule': true,
},
'openai': {
'esModule': true,
},
},
paths: {
'npm:': 'https://cdn.jsdelivr.net/npm/',
'bundles:': '../../../../bundles/',
'externals:': '../../../../bundles/externals/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
'react': 'npm:react@17.0.2/umd/react.development.js',
'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
'prop-types': 'npm:prop-types/prop-types.js',
'canvg': 'externals:canvg.bundle.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign',
'devextreme': 'npm:devextreme@link:../../packages/devextreme/artifacts/npm/devextreme/cjs',
'devextreme-react': 'npm:devextreme-react@link:../../packages/devextreme-react/npm/cjs',
'devextreme-quill': 'npm:devextreme-quill@1.7.6/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.24/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.64/dist/dx-gantt.js',
'inferno': 'npm:inferno@8.2.3/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@8.2.3/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
'@preact/signals-core': 'npm:@preact/signals-core@1.8.0/dist/signals-core.min.js',
'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',
// Prettier
'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',
'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',
},
packages: {
'devextreme': {
defaultExtension: 'js',
},
'devextreme-react': {
main: 'index.js',
},
'devextreme-react/common': {
main: 'index.js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/common/core/events/utils': {
main: 'index',
},
'devextreme/localization/messages': {
format: 'json',
defaultExtension: 'json',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);
// eslint-disable-next-line
const useTgzInCSB = ['openai'];
let packagesInfo = {
"canvg": {
"version": "4.0.3"
}
};
import React from 'react';
const fontFamily = "'Segoe UI', 'Helvetica Neue', 'Trebuchet MS', Verdana, sans-serif";
const Form = React.forwardRef((_, ref) => (
<div
id="custom_markup_container"
ref={ref}
>
<svg
width="820px"
height="420px"
>
<path
opacity="1"
d="M 0 0 L 820 0 L 820 420 L 0 420 L 0 0"
stroke="#999999"
strokeWidth="1"
strokeLinecap="butt"
fill="white"
strokeLinejoin="miter"
></path>
<path
d="M 13 407 L 128 407 L 232 39 L 13 39"
fill="#6D39C3"
></path>
<path
d="M 46 381 L 161 381 L 265 13 L 46 13"
opacity="0.5"
fill="#6D39C3"
></path>
<text
transform="translate(30,89)"
style={{
fill: '#FFFFFF',
fontFamily,
fontSize: 36,
fontWeight: 'bold',
}}
>
<tspan
x="0"
y="0"
>
Export{' '}
</tspan>
<tspan
x="0"
y="38"
>
Custom
</tspan>
<tspan
x="0"
y="76"
>
Markup
</tspan>
</text>
<text
transform="translate(32,199)"
style={{
opacity: 0.8,
fill: '#FFFFFF',
fontFamily,
fontSize: 14,
}}
>
<tspan
x="0"
y="0"
>
Export a chart with
</tspan>
<tspan
x="0"
y="19.2"
>
custom elements
</tspan>
</text>
</svg>
</div>
));
Form.displayName = 'Form';
export default Form;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
export const dataSource = [
{
state: 'Saudi Arabia',
year1990: 319.6,
year2000: 408.4,
year2010: 407,
year2016: 523,
year2017: 496.6,
},
{
state: 'USA',
year1990: 362.8,
year2000: 287.9,
year2010: 270.2,
year2016: 438,
year2017: 461.4,
},
{
state: 'China',
year1990: 138.3,
year2000: 163,
year2010: 203,
year2016: 199.7,
year2017: 191.5,
},
];
<!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/25.1.6/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import("./index.tsx");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
#chart-demo {
height: 460px;
}
#chart {
position: absolute;
top: 12px;
right: 35px;
width: 480px;
height: 347px;
}
.chart_environment {
width: 820px;
position: relative;
margin: 0 auto;
}
.controls-pane {
text-align: center;
}