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117 changes: 117 additions & 0 deletions
117
lib/widgets/nt4_widgets/multi-topic/encoder_widget.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| import 'package:dot_cast/dot_cast.dart'; | ||
| import 'package:elastic_dashboard/services/globals.dart'; | ||
| import 'package:elastic_dashboard/services/nt4_connection.dart'; | ||
| import 'package:elastic_dashboard/widgets/nt4_widgets/nt4_widget.dart'; | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:provider/provider.dart'; | ||
|
|
||
| class EncoderWidget extends StatelessWidget with NT4Widget { | ||
| @override | ||
| String type = 'Encoder'; | ||
|
|
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| late String distanceTopic; | ||
| late String speedTopic; | ||
|
|
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| EncoderWidget({super.key, required topic, period = Globals.defaultPeriod}) { | ||
| super.topic = topic; | ||
| super.period = period; | ||
|
|
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| init(); | ||
| } | ||
|
|
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| EncoderWidget.fromJson({super.key, required Map<String, dynamic> jsonData}) { | ||
| topic = tryCast(jsonData['topic']) ?? ''; | ||
| period = tryCast(jsonData['period']) ?? Globals.defaultPeriod; | ||
|
|
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| init(); | ||
| } | ||
|
|
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| @override | ||
| void init() { | ||
| super.init(); | ||
|
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| distanceTopic = '$topic/Distance'; | ||
| speedTopic = '$topic/Speed'; | ||
| } | ||
|
|
||
| @override | ||
| void resetSubscription() { | ||
| super.resetSubscription(); | ||
|
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| distanceTopic = '$topic/Distance'; | ||
| speedTopic = '$topic/Speed'; | ||
| } | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| notifier = context.watch<NT4WidgetNotifier?>(); | ||
|
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| return StreamBuilder( | ||
| stream: subscription?.periodicStream(), | ||
| builder: (context, snapshot) { | ||
| double distance = | ||
| tryCast(nt4Connection.getLastAnnouncedValue(distanceTopic)) ?? 0.0; | ||
| double speed = | ||
| tryCast(nt4Connection.getLastAnnouncedValue(speedTopic)) ?? 0.0; | ||
|
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||
| return Column( | ||
| mainAxisAlignment: MainAxisAlignment.spaceEvenly, | ||
| children: [ | ||
| Row( | ||
| children: [ | ||
| const Text('Distance'), | ||
| const SizedBox(width: 10), | ||
| Expanded( | ||
| child: Container( | ||
| decoration: BoxDecoration( | ||
| border: Border( | ||
| bottom: BorderSide( | ||
| color: Colors.grey.shade700, | ||
| width: 1.5, | ||
| ), | ||
| ), | ||
| ), | ||
| child: SelectableText( | ||
| distance.toStringAsPrecision(10), | ||
| maxLines: 1, | ||
| showCursor: true, | ||
| style: Theme.of(context).textTheme.bodyLarge?.copyWith( | ||
| overflow: TextOverflow.ellipsis, | ||
| ), | ||
| ), | ||
| ), | ||
| ), | ||
| ], | ||
| ), | ||
| Row( | ||
| children: [ | ||
| const Text('Speed'), | ||
| const SizedBox(width: 10), | ||
| Expanded( | ||
| child: Container( | ||
| decoration: BoxDecoration( | ||
| border: Border( | ||
| bottom: BorderSide( | ||
| color: Colors.grey.shade700, | ||
| width: 1.5, | ||
| ), | ||
| ), | ||
| ), | ||
| child: SelectableText( | ||
| speed.toStringAsPrecision(10), | ||
| maxLines: 1, | ||
| showCursor: true, | ||
| style: Theme.of(context).textTheme.bodyLarge?.copyWith( | ||
| overflow: TextOverflow.ellipsis, | ||
| ), | ||
| ), | ||
| ), | ||
| ), | ||
| ], | ||
| ), | ||
| ], | ||
| ); | ||
| }, | ||
| ); | ||
| } | ||
| } |