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WIP #120 null values handling

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This commit is contained in:
Yegor Vialov
2018-11-03 21:56:06 +02:00
parent 0e96406573
commit efab8b60b1
3 changed files with 48 additions and 15 deletions
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24
lib/entity_widgets/history_chart/combined_history_chart.dart
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@ -19,6 +19,12 @@ class _CombinedHistoryChartWidgetState extends State<CombinedHistoryChartWidget>
int _selectedId = -1;
List<charts.Series<CombinedEntityStateHistoryMoment, DateTime>> _parsedHistory;
@override
void initState() {
// TODO: implement initState
super.initState();
}
@override
Widget build(BuildContext context) {
_parsedHistory = _parseHistory();
@ -28,11 +34,11 @@ class _CombinedHistoryChartWidgetState extends State<CombinedHistoryChartWidget>
if ((_selectedId > -1) && (_parsedHistory != null) && (_parsedHistory.first.data.length >= (_selectedId + 1))) {
selectedTime = _parsedHistory.first.data[_selectedId].startTime;
_parsedHistory.where((item) { return item.id == "state"; }).forEach((item) {
selectedStates.add("${item.data[_selectedId].state}");
selectedStates.add(item.data[_selectedId].state);
colorIndexes.add(item.data[_selectedId].colorId);
});
_parsedHistory.where((item) { return item.id == "value"; }).forEach((item) {
selectedStates.add("${item.data[_selectedId].value}");
selectedStates.add("${item.data[_selectedId].value ?? '-'}");
colorIndexes.add(item.data[_selectedId].colorId);
});
}
@ -101,10 +107,11 @@ class _CombinedHistoryChartWidgetState extends State<CombinedHistoryChartWidget>
DateTime endTime;
bool hiddenLine;
double value;
double previousValue = 0.0;
value = _parseToDouble(stateData["attributes"]["$attrName"]);
bool hiddenDot = (value == null);
if (hiddenDot && i > 0) {
value = data[i-1].value;
previousValue = data[i-1].value ?? data[i-1].previousValue;
}
if (i < (widget.rawHistory.length - 1)) {
endTime = DateTime.tryParse(widget.rawHistory[i+1]["last_updated"])?.toLocal();
@ -114,9 +121,9 @@ class _CombinedHistoryChartWidgetState extends State<CombinedHistoryChartWidget>
hiddenLine = hiddenDot;
endTime = now;
}
data.add(CombinedEntityStateHistoryMoment(value, hiddenDot, hiddenLine, stateData["state"], startTime, endTime, i, colorIdCounter));
data.add(CombinedEntityStateHistoryMoment(value, previousValue, hiddenDot, hiddenLine, stateData["state"], startTime, endTime, i, colorIdCounter));
}
data.add(CombinedEntityStateHistoryMoment(data.last.value, data.last.hiddenDot, data.last.hiddenLine, data.last.state, now, null, widget.rawHistory.length, colorIdCounter));
data.add(CombinedEntityStateHistoryMoment(data.last.value, data.last.previousValue, data.last.hiddenDot, data.last.hiddenLine, data.last.state, now, null, widget.rawHistory.length, colorIdCounter));
numericDataLists.addAll({attrName: data});
colorIdCounter += 1;
});
@ -142,7 +149,7 @@ class _CombinedHistoryChartWidgetState extends State<CombinedHistoryChartWidget>
},
strokeWidthPxFn: (CombinedEntityStateHistoryMoment historyMoment, __) => historyMoment.hiddenLine ? 0.0 : 2.0,
domainFn: (CombinedEntityStateHistoryMoment historyMoment, _) => historyMoment.startTime,
measureFn: (CombinedEntityStateHistoryMoment historyMoment, _) => historyMoment.value ?? 0,
measureFn: (CombinedEntityStateHistoryMoment historyMoment, _) => historyMoment.value ?? historyMoment.previousValue,
data: dataList,
/*domainLowerBoundFn: (CombinedEntityStateHistoryMoment historyMoment, _) => historyMoment.time.subtract(Duration(hours: 1)),
domainUpperBoundFn: (CombinedEntityStateHistoryMoment historyMoment, _) => historyMoment.time.add(Duration(hours: 1)),*/
@ -254,7 +261,7 @@ class CombinedHistoryControlWidget extends StatelessWidget {
for (int i = 0; i < selectedStates.length; i++) {
children.add(
Text(
"${selectedStates[i]}",
"${selectedStates[i] ?? '-'}",
textAlign: TextAlign.right,
style: TextStyle(
fontWeight: FontWeight.bold,
@ -292,11 +299,12 @@ class CombinedEntityStateHistoryMoment {
final DateTime startTime;
final DateTime endTime;
final double value;
final double previousValue;
final int id;
final int colorId;
final String state;
final bool hiddenDot;
final bool hiddenLine;
CombinedEntityStateHistoryMoment(this.value, this.hiddenDot, this.hiddenLine, this.state, this.startTime, this.endTime, this.id, this.colorId);
CombinedEntityStateHistoryMoment(this.value, this.previousValue, this.hiddenDot, this.hiddenLine, this.state, this.startTime, this.endTime, this.id, this.colorId);
}

37
lib/entity_widgets/history_chart/numeric_state_history_chart.dart
View File

@ -34,7 +34,7 @@ class _NumericStateHistoryChartWidgetState extends State<NumericStateHistoryChar
children: <Widget>[
HistoryControlWidget(
selectedTimeStart: selectedTime,
selectedState: "$selectedState",
selectedState: "${selectedState ?? '-'}",
onPrevTap: () => _selectPrev(),
onNextTap: () => _selectNext(),
colorIndex: -1,
@ -72,9 +72,22 @@ class _NumericStateHistoryChartWidgetState extends State<NumericStateHistoryChar
for (var i = 0; i < widget.rawHistory.length; i++) {
var stateData = widget.rawHistory[i];
DateTime time = DateTime.tryParse(stateData["last_updated"])?.toLocal();
data.add(NumericEntityStateHistoryMoment(double.tryParse(stateData["state"]), time, i));
double value = double.tryParse(stateData["state"]);
double previousValue = 0.0;
bool hiddenDot = (value == null);
bool hiddenLine;
if (hiddenDot && i > 0) {
previousValue = data[i-1].value ?? data[i-1].previousValue;
}
if (i < (widget.rawHistory.length - 1)) {
double nextValue = double.tryParse(widget.rawHistory[i+1]["state"]);
hiddenLine = (nextValue == null || hiddenDot);
} else {
hiddenLine = hiddenDot;
}
data.add(NumericEntityStateHistoryMoment(value, previousValue, hiddenDot, hiddenLine, time, i));
}
data.add(NumericEntityStateHistoryMoment(data.last.value, now, widget.rawHistory.length));
data.add(NumericEntityStateHistoryMoment(data.last.value, data.last.previousValue, data.last.hiddenDot, data.last.hiddenLine, now, widget.rawHistory.length));
if (_selectedId == -1) {
_selectedId = 0;
}
@ -83,9 +96,18 @@ class _NumericStateHistoryChartWidgetState extends State<NumericStateHistoryChar
id: 'State',
colorFn: (NumericEntityStateHistoryMoment historyMoment, __) => EntityColors.chartHistoryStateColor("on", -1),
domainFn: (NumericEntityStateHistoryMoment historyMoment, _) => historyMoment.time,
measureFn: (NumericEntityStateHistoryMoment historyMoment, _) => historyMoment.value,
measureFn: (NumericEntityStateHistoryMoment historyMoment, _) => historyMoment.value ?? historyMoment.previousValue,
data: data,
radiusPxFn: (NumericEntityStateHistoryMoment historyMoment, __) => (historyMoment.id == _selectedId) ? 5.0 : 1.0,
strokeWidthPxFn: (NumericEntityStateHistoryMoment historyMoment, __) => historyMoment.hiddenLine ? 0.0 : 2.0,
radiusPxFn: (NumericEntityStateHistoryMoment historyMoment, __) {
if (historyMoment.hiddenDot) {
return 0.0;
} else if (historyMoment.id == _selectedId) {
return 5.0;
} else {
return 1.0;
}
},
)
];
}
@ -126,7 +148,10 @@ class _NumericStateHistoryChartWidgetState extends State<NumericStateHistoryChar
class NumericEntityStateHistoryMoment {
final DateTime time;
final double value;
final double previousValue;
final int id;
final bool hiddenDot;
final bool hiddenLine;
NumericEntityStateHistoryMoment(this.value, this.time, this.id);
NumericEntityStateHistoryMoment(this.value, this.previousValue, this.hiddenDot, this.hiddenLine, this.time, this.id);
}

2
lib/entity_widgets/history_chart/simple_state_history_chart.dart
View File

@ -182,7 +182,7 @@ class HistoryControlWidget extends StatelessWidget {
child: Padding(
padding: EdgeInsets.only(right: 10.0),
child: Text(
"$selectedState",
"${selectedState ?? '-'}",
textAlign: TextAlign.right,
style: TextStyle(
fontWeight: FontWeight.bold,