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Backend API
import React, { useCallback, useState } from 'react';
import {
CircularGauge, Scale, Label, RangeContainer, Range, Tooltip, Title, Font,
} from 'devextreme-react/circular-gauge';
import { SelectBox } from 'devextreme-react/select-box';
import { dataSource, seasonLabel } from './data.ts';
function customizeText({ valueText }) {
return `${valueText} °C`;
}
function App() {
const [value, setValue] = useState(dataSource[0].mean);
const [subvalues, setSubvalues] = useState([dataSource[0].min, dataSource[0].max]);
const onSelectionChanged = useCallback(({ selectedItem }) => {
setValue(selectedItem.mean);
setSubvalues([selectedItem.min, selectedItem.max]);
}, [setValue, setSubvalues]);
return (
<div id="gauge-demo">
<CircularGauge
id="gauge"
value={value}
subvalues={subvalues}
>
<Scale startValue={10} endValue={40} tickInterval={5}>
<Label customizeText={customizeText} />
</Scale>
<RangeContainer>
<Range startValue={10} endValue={20} color="#0077BE" />
<Range startValue={20} endValue={30} color="#E6E200" />
<Range startValue={30} endValue={40} color="#77DD77" />
</RangeContainer>
<Tooltip enabled={true} />
<Title text="Temperature in the Greenhouse">
<Font size={28} />
</Title>
</CircularGauge>
<SelectBox
id="seasons"
width={150}
inputAttr={seasonLabel}
dataSource={dataSource}
defaultValue={dataSource[0]}
displayExpr="name"
onSelectionChanged={onSelectionChanged}
/>
</div>
);
}
export default App;
import React, { useCallback, useState } from 'react';
import {
CircularGauge,
Scale,
Label,
RangeContainer,
Range,
Tooltip,
Title,
Font,
} from 'devextreme-react/circular-gauge';
import { SelectBox } from 'devextreme-react/select-box';
import { dataSource, seasonLabel } from './data.js';
function customizeText({ valueText }) {
return `${valueText} °C`;
}
function App() {
const [value, setValue] = useState(dataSource[0].mean);
const [subvalues, setSubvalues] = useState([dataSource[0].min, dataSource[0].max]);
const onSelectionChanged = useCallback(
({ selectedItem }) => {
setValue(selectedItem.mean);
setSubvalues([selectedItem.min, selectedItem.max]);
},
[setValue, setSubvalues],
);
return (
<div id="gauge-demo">
<CircularGauge
id="gauge"
value={value}
subvalues={subvalues}
>
<Scale
startValue={10}
endValue={40}
tickInterval={5}
>
<Label customizeText={customizeText} />
</Scale>
<RangeContainer>
<Range
startValue={10}
endValue={20}
color="#0077BE"
/>
<Range
startValue={20}
endValue={30}
color="#E6E200"
/>
<Range
startValue={30}
endValue={40}
color="#77DD77"
/>
</RangeContainer>
<Tooltip enabled={true} />
<Title text="Temperature in the Greenhouse">
<Font size={28} />
</Title>
</CircularGauge>
<SelectBox
id="seasons"
width={150}
inputAttr={seasonLabel}
dataSource={dataSource}
defaultValue={dataSource[0]}
displayExpr="name"
onSelectionChanged={onSelectionChanged}
/>
</div>
);
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
export const dataSource = [{
name: 'Summer',
mean: 35,
min: 28,
max: 38,
}, {
name: 'Autumn',
mean: 24,
min: 20,
max: 32,
}, {
name: 'Winter',
mean: 18,
min: 16,
max: 23,
}, {
name: 'Spring',
mean: 27,
min: 18,
max: 31,
}];
export const seasonLabel = { 'aria-label': 'Season' };
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,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.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@15.8.1/prop-types.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@24.1.7/cjs',
'devextreme-react': 'npm:devextreme-react@24.1.7/cjs',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.13/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.56/dist/dx-gantt.js',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/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',
'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/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',
'npm:@devextreme/runtime@3.0.13/inferno/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
export const dataSource = [
{
name: 'Summer',
mean: 35,
min: 28,
max: 38,
},
{
name: 'Autumn',
mean: 24,
min: 20,
max: 32,
},
{
name: 'Winter',
mean: 18,
min: 16,
max: 23,
},
{
name: 'Spring',
mean: 27,
min: 18,
max: 31,
},
];
export const seasonLabel = { 'aria-label': 'Season' };
<!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="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/24.1.7/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script>
<script src="https://unpkg.com/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>
#gauge-demo {
height: 440px;
width: 100%;
}
#gauge {
width: 80%;
height: 100%;
float: left;
}
#seasons {
width: 20%;
float: left;
text-align: left;
margin-top: 20px;
}