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Code Issues Releases Wiki Activity

PlotTable widget: move data gathering from render function to getDerivedStateFromProps #218

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This commit is contained in:
Sonja Happ 2020-05-20 13:38:48 +02:00
parent b803a17a66
commit 640940dffd
1 changed files with 35 additions and 39 deletions
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74
src/widget/widgets/plot-table.js
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@ -24,66 +24,62 @@ class WidgetPlotTable extends Component {
constructor(props) {
super(props);
this.state = {
signals: []
signals: [],
data: []
};
}
static getDerivedStateFromProps(props, state){
let intersection = []
let data = [];
let signalID, sig;
for (signalID of props.widget.signalIDs) {
for (sig of props.signals) {
if (signalID === sig.id) {
intersection.push(sig);
}
}
}
return {signals: intersection}
// sig is a selected signal, get data
// determine ID of infrastructure component related to signal (via config)
let icID = props.icIDs[sig.id]
// distinguish between input and output signals
if (sig.direction === "out") {
if (props.data[icID] != null && props.data[icID].output != null && props.data[icID].output.values != null) {
if (props.data[icID].output.values[sig.index] !== undefined) {
data.push(props.data[icID].output.values[sig.index]);
}
}
} else if (sig.direction === "in") {
if (props.data[icID] != null && props.data[icID].input != null && props.data[icID].input.values != null) {
if (props.data[icID].input.values[sig.index] !== undefined) {
data.push(props.data[icID].input.values[sig.index]);
}
}
}
} // sig is selected signal
} // loop over props.signals
} // loop over selected signals
return {signals: intersection, data: data}
}
updateSignalSelection(signal, checked) {
// Update the selected signals and propagate to parent component
var new_widget = Object.assign({}, this.props.widget, {
checkedSignals: checked ? this.state.signals.concat(signal) : this.state.signals.filter((idx) => idx !== signal)
});
this.props.onWidgetChange(new_widget);
}
// updateSignalSelection(signal, checked) {
// // Update the selected signals and propagate to parent component
// var new_widget = Object.assign({}, this.props.widget, {
// checkedSignals: checked ? this.state.signals.concat(signal) : this.state.signals.filter((idx) => idx !== signal)
// });
// this.props.onWidgetChange(new_widget);
// }
render() {
let checkBoxes = [];
let icData = [];
let showLegend = false;
if (this.state.signals.length > 0) {
showLegend = true;
// get data of preselected signals
let signal;
for (signal of this.state.signals) {
// determine ID of infrastructure component related to signal (via config)
let icID = this.props.icIDs[signal.id]
// distinguish between input and output signals
if (signal.direction === "out"){
if (this.props.data[icID] != null && this.props.data[icID].output != null && this.props.data[icID].output.values != null) {
if (this.props.data[icID].output.values[signal.index] !== undefined){
icData.push(this.props.data[icID].output.values[signal.index]);
}
}
} else if (signal.direction === "in"){
if (this.props.data[icID] != null && this.props.data[icID].input != null && this.props.data[icID].input.values != null) {
if (this.props.data[icID].input.values[signal.index] !== undefined){
icData.push(this.props.data[icID].input.values[signal.index]);
}
}
}
}
// Create checkboxes using the signal indices from component config
// checkBoxes = this.state.signals.map((signal) => {
// let checked = this.state.signals.indexOf(signal) > -1;
@ -112,7 +108,7 @@ class WidgetPlotTable extends Component {
<div className="widget-plot">
<Plot
data={icData}
data={this.state.data}
time={this.props.widget.customProperties.time}
width={this.props.widget.width - 100}
height={this.props.widget.height - 55}