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import React from 'react'; | |
import { StyleSheet, View, Button } from 'react-native'; | |
import HighchartsReactNative from '@highcharts/highcharts-react-native' | |
export default class TradeView extends React.Component { | |
constructor(props) { | |
super(props); | |
this.state = { | |
chartOptions: { | |
credits: { | |
enabled: false, | |
}, | |
chart: { | |
type: 'spline', | |
events: { | |
load: function () { | |
var points = this.series[0].points; | |
points[0].update({ | |
marker: { | |
enabled: true, | |
}, | |
}); | |
}, | |
}, | |
}, | |
title: { | |
text: 'Chart', | |
}, | |
plotOptions: { | |
series: { | |
shadow: false, | |
marker: { | |
enabled: false, | |
}, | |
}, | |
}, | |
xAxis: { | |
gridLineWidth: 1, | |
type: 'datetime', | |
lineColor: '#999', | |
lineWidth: 1, | |
title: { | |
text: 'Time', | |
style: { | |
color: '#000', | |
}, | |
}, | |
}, | |
yAxis: [ | |
{ | |
// allowDecimals: false, | |
title: { | |
text: 'Value', | |
}, | |
gridLineWidth: 1, | |
lineWidth: 1, | |
opposite: true, | |
// linkedTo: 0, | |
plotLines: [ | |
{ | |
color: '#55c2ea', | |
width: 2, | |
value: props.data[0][1], // Need to set this probably as a var. | |
label: { | |
text: props.data[0][1], | |
textAlign: 'left', | |
verticalAlign: 'middle', | |
style: { | |
color: '#55c2ea', | |
fontSize: 16, | |
borderWidth: 1, | |
backgroundColor: '#55c2ea', | |
borderColor: '#55c2ea', | |
}, | |
x: 330, | |
}, | |
}, | |
], | |
accessibility: { | |
enabled: true, | |
}, | |
opposite: true, | |
}, | |
], | |
time: { | |
useUTC: false | |
}, | |
tooltip: { | |
formatter: function () { | |
var d = new Date(this.x), | |
month = '' + (d.getMonth() + 1), | |
day = '' + d.getDate(), | |
year = d.getFullYear(), | |
hour = d.getHours(), | |
min = d.getMinutes(); | |
if (month.length < 2) | |
month = '0' + month; | |
if (day.length < 2) | |
day = '0' + day; | |
return [year, month, day].join('-') + " " + [hour, min].join(':') + ', ' + this.y; | |
} | |
}, | |
series: [ | |
{ | |
showInLegend: false, | |
color: '#FF0000', | |
data: props.data.slice(0, props.tradingInterval), | |
}, | |
], | |
} | |
}; | |
} | |
componentDidUpdate(prevState, prevProps) { | |
console.log("Prev: " + prevProps.tradingInterval); | |
console.log("Current: " + this.props.tradingInterval); | |
} | |
updateSeries = () => { | |
// The chart is updated only with new options. | |
this.setState({ chartOptions: { | |
series: [ | |
{ | |
showInLegend: false, | |
color: '#FF0000', | |
data: this.props.data.slice(0, 15),} | |
] | |
} }) | |
} | |
render() { | |
return ( | |
<View style={styles.container}> | |
<HighchartsReactNative | |
styles={styles.chart} | |
options={this.state.chartOptions} | |
/> | |
<Button | |
title="Refresh" | |
onPress={this.updateSeries.bind(this)}/> | |
</View> | |
); | |
} | |
} | |
const styles = StyleSheet.create({ | |
container: { | |
flex: 1, | |
justifyContent: 'center', | |
}, | |
chart: { | |
height: '50%', | |
width: '100%', | |
backgroundColor: 'black', | |
}, | |
}); |
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