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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,230 @@ | ||
| import 'package:elastic_dashboard/services/globals.dart'; | ||
| import 'package:elastic_dashboard/services/nt4_connection.dart'; | ||
| import 'package:elastic_dashboard/widgets/dialog_widgets/dialog_dropdown_chooser.dart'; | ||
| import 'package:elastic_dashboard/widgets/dialog_widgets/dialog_text_input.dart'; | ||
| import 'package:elastic_dashboard/widgets/dialog_widgets/dialog_toggle_switch.dart'; | ||
| import 'package:elastic_dashboard/widgets/nt4_widgets/nt4_widget.dart'; | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:flutter/services.dart'; | ||
| import 'package:provider/provider.dart'; | ||
| import 'package:syncfusion_flutter_gauges/gauges.dart'; | ||
|
|
||
| class VoltageView extends StatelessWidget with NT4Widget { | ||
| @override | ||
| String type = 'Voltage View'; | ||
|
|
||
| late double minValue; | ||
| late double maxValue; | ||
| late int? divisions; | ||
| late bool inverted; | ||
| late String orientation; | ||
|
|
||
| VoltageView({ | ||
| super.key, | ||
| required topic, | ||
| this.minValue = 4.0, | ||
| this.maxValue = 13.0, | ||
| this.divisions = 5, | ||
| this.inverted = false, | ||
| this.orientation = 'horizontal', | ||
| period = Globals.defaultPeriod, | ||
| }) { | ||
| super.topic = topic; | ||
| super.period = period; | ||
|
|
||
| init(); | ||
| } | ||
|
|
||
| VoltageView.fromJson({super.key, required Map<String, dynamic> jsonData}) { | ||
| topic = jsonData['topic'] ?? ''; | ||
| period = jsonData['period'] ?? Globals.defaultPeriod; | ||
|
|
||
| minValue = jsonData['min_value'] ?? 4; | ||
| maxValue = jsonData['max_value'] ?? 13.0; | ||
| divisions = jsonData['divisions']; | ||
| inverted = jsonData['inverted'] ?? false; | ||
| orientation = jsonData['orientation'] ?? 'horizontal'; | ||
|
|
||
| init(); | ||
| } | ||
|
|
||
| @override | ||
| Map<String, dynamic> toJson() { | ||
| return { | ||
| 'topic': topic, | ||
| 'period': period, | ||
| 'min_value': minValue, | ||
| 'max_value': maxValue, | ||
| 'divisions': divisions, | ||
| 'inverted': inverted, | ||
| 'orientation': orientation, | ||
| }; | ||
| } | ||
|
|
||
| @override | ||
| List<Widget> getEditProperties(BuildContext context) { | ||
| return [ | ||
| // Orientation | ||
| Column( | ||
| children: [ | ||
| const Text('Orientation'), | ||
| DialogDropdownChooser<String>( | ||
| initialValue: | ||
| '${orientation[0].toUpperCase()}${orientation.substring(1)}', | ||
| choices: const ['Horizontal', 'Vertical'], | ||
| onSelectionChanged: (value) { | ||
| if (value == null) { | ||
| return; | ||
| } | ||
|
|
||
| orientation = value.toLowerCase(); | ||
| refresh(); | ||
| }, | ||
| ), | ||
| ], | ||
| ), | ||
| const SizedBox(height: 5), | ||
| // Min and max values | ||
| Row( | ||
| mainAxisAlignment: MainAxisAlignment.spaceAround, | ||
| mainAxisSize: MainAxisSize.max, | ||
| children: [ | ||
| Flexible( | ||
| child: DialogTextInput( | ||
| onSubmit: (value) { | ||
| double? newMin = double.tryParse(value); | ||
| if (newMin == null) { | ||
| return; | ||
| } | ||
| minValue = newMin; | ||
| refresh(); | ||
| }, | ||
| formatter: FilteringTextInputFormatter.allow(RegExp(r"[0-9.-]")), | ||
| label: 'Min Value', | ||
| initialText: minValue.toString(), | ||
| ), | ||
| ), | ||
| const SizedBox(width: 5), | ||
| Flexible( | ||
| child: DialogTextInput( | ||
| onSubmit: (value) { | ||
| double? newMax = double.tryParse(value); | ||
| if (newMax == null) { | ||
| return; | ||
| } | ||
| maxValue = newMax; | ||
| refresh(); | ||
| }, | ||
| formatter: FilteringTextInputFormatter.allow(RegExp(r"[0-9.-]")), | ||
| label: 'Max Value', | ||
| initialText: maxValue.toString(), | ||
| ), | ||
| ), | ||
| ], | ||
| ), | ||
| const SizedBox(height: 5), | ||
| // Number of divisions and orientation | ||
| Row( | ||
| mainAxisAlignment: MainAxisAlignment.spaceAround, | ||
| mainAxisSize: MainAxisSize.max, | ||
| children: [ | ||
| Expanded( | ||
| child: DialogTextInput( | ||
| onSubmit: (value) { | ||
| int? newDivisions = int.tryParse(value); | ||
| if (newDivisions != null && newDivisions < 2) { | ||
| return; | ||
| } | ||
| divisions = newDivisions; | ||
| refresh(); | ||
| }, | ||
| formatter: FilteringTextInputFormatter.digitsOnly, | ||
| label: 'Divisions', | ||
| initialText: (divisions != null) ? divisions.toString() : '', | ||
| allowEmptySubmission: true, | ||
| ), | ||
| ), | ||
| const SizedBox(width: 5), | ||
| Expanded( | ||
| child: Center( | ||
| child: DialogToggleSwitch( | ||
| initialValue: inverted, | ||
| label: 'Inverted', | ||
| onToggle: (value) { | ||
| inverted = value; | ||
| refresh(); | ||
| }, | ||
| ), | ||
| ), | ||
| ), | ||
| ], | ||
| ), | ||
| ]; | ||
| } | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| notifier = context.watch<NT4WidgetNotifier?>(); | ||
|
|
||
| return StreamBuilder( | ||
| stream: subscription?.periodicStream(), | ||
| initialData: nt4Connection.getLastAnnouncedValue(topic), | ||
| builder: (context, snapshot) { | ||
| double voltage = snapshot.data as double? ?? 0.0; | ||
|
|
||
| double clampedVoltage = voltage.clamp(minValue, maxValue); | ||
|
|
||
| double? divisionInterval = (divisions != null) | ||
| ? (maxValue - minValue) / (divisions! - 1) | ||
| : null; | ||
|
|
||
| LinearGaugeOrientation gaugeOrientation = (orientation == 'vertical') | ||
| ? LinearGaugeOrientation.vertical | ||
| : LinearGaugeOrientation.horizontal; | ||
|
|
||
| List<Widget> children = [ | ||
| Text( | ||
| '${voltage.toStringAsFixed(2)} V', | ||
| style: Theme.of(context).textTheme.bodyLarge, | ||
| overflow: TextOverflow.ellipsis, | ||
| ), | ||
| const Flexible( | ||
| child: SizedBox(width: 5.0, height: 5.0), | ||
| ), | ||
| SfLinearGauge( | ||
| key: UniqueKey(), | ||
| maximum: maxValue, | ||
| minimum: minValue, | ||
| barPointers: [ | ||
| LinearBarPointer( | ||
| value: clampedVoltage, | ||
| color: Colors.yellow.shade600, | ||
| animationDuration: 0, | ||
| thickness: 7.5, | ||
| ), | ||
| ], | ||
| axisTrackStyle: const LinearAxisTrackStyle( | ||
| thickness: 7.5, | ||
| ), | ||
| labelFormatterCallback: (value) => '$value V', | ||
| orientation: gaugeOrientation, | ||
| isAxisInversed: inverted, | ||
| interval: divisionInterval, | ||
| ), | ||
| ]; | ||
|
|
||
| if (gaugeOrientation == LinearGaugeOrientation.vertical) { | ||
| return Row( | ||
| mainAxisAlignment: MainAxisAlignment.center, | ||
| children: children, | ||
| ); | ||
| } else { | ||
| return Column( | ||
| mainAxisAlignment: MainAxisAlignment.center, | ||
| children: children, | ||
| ); | ||
| } | ||
| }, | ||
| ); | ||
| } | ||
| } |