chart improvements, synch working

lib/providers/tx_meta_provider.dart

@@ -790,15 +790,24 @@ class TxMetaController extends ChangeNotifier {
     return false;
   }
 
-  /// OR filter: any selected label, and/or unlabeled when uncategorized is selected.
+  /// AND filter: every selected label must be on the tx.
+  ///
+  /// Uncategorized alone matches unlabeled txs. Uncategorized combined with
+  /// other labels matches nothing (a tx cannot be both).
   bool _matchesLabelFilter(TxMeta meta, Set<String> labelIds) {
     final wantUncategorized = labelIds.contains(kUncategorizedFilterId);
-    if (wantUncategorized && !meta.hasLabel) return true;
-    for (final id in labelIds) {
-      if (id == kUncategorizedFilterId) continue;
-      if (meta.labelIds.contains(id)) return true;
+    final required = <String>[
+      for (final id in labelIds)
+        if (id != kUncategorizedFilterId) id,
+    ];
+    if (wantUncategorized) {
+      if (required.isNotEmpty) return false;
+      return !meta.hasLabel;
     }
-    return false;
+    for (final id in required) {
+      if (!meta.labelIds.contains(id)) return false;
+    }
+    return true;
   }
 
   /// Labels currently used by [transactions].

lib/screens/overview_screen.dart

@@ -234,7 +234,6 @@ class _OverviewScreenState extends State<OverviewScreen> {
         _period,
         includedLabelIds: _includedLabelIds,
         flow: _labelFlow,
-        invertExpensePerspective: _labelInvertChart,
       );
       labelSpend = labels.spend;
       labelAmountByPeriod = labels.amountByPeriod;
@@ -277,6 +276,7 @@ class _OverviewScreenState extends State<OverviewScreen> {
           labelSpend: labelSpend,
           labelAmountByMonth: labelAmountByPeriod,
           labelBarStyle: _labelBarStyle,
+          invertChart: _labelFlow == TxFlowFilter.all && _labelInvertChart,
           currency: currency,
           onPickLabels: () => _pickChartLabels(context),
           includedLabelCount: _includedLabelIds.isEmpty &&
@@ -555,8 +555,9 @@ class _LabelAggregates {
 /// One pass over labeled amounts: totals, per-period series, and history.
 ///
 /// Amounts are summed with sign (refunds offset spend). For [TxFlowFilter.all]
-/// the signed net is kept (can be negative). With [invertExpensePerspective],
-/// signs flip so spending plots upward. For In/Out, bars use absolute nets.
+/// the signed net is kept (can be negative). For In/Out, bars use absolute nets.
+/// Chart-only invert is applied later in [_LabelMonthBars], not here — history
+/// always follows bank transaction signs.
 _LabelAggregates _labelAggregates(
   List<BankTransaction> txs,
   TxMetaController meta,
@@ -564,7 +565,6 @@ _LabelAggregates _labelAggregates(
   _PeriodMode mode, {
   Set<String> includedLabelIds = const {},
   TxFlowFilter flow = TxFlowFilter.expense,
-  bool invertExpensePerspective = false,
 }) {
   final keys = {for (final p in periods) _periodKey(p, mode)};
   final allByLabel = <String, double>{};
@@ -576,7 +576,6 @@ _LabelAggregates _labelAggregates(
   };
   final filtering = includedLabelIds.isNotEmpty;
   final keepSigned = flow == TxFlowFilter.all;
-  final invert = keepSigned && invertExpensePerspective;
 
   for (final tx in txs) {
     if (meta.metaFor(tx).internalTransfer) continue;
@@ -608,7 +607,7 @@ _LabelAggregates _labelAggregates(
 
   double displayAmount(double signed) {
     if (!keepSigned) return signed.abs();
-    return invert ? -signed : signed;
+    return signed;
   }
 
   final allSpend = <_LabelSpend>[
@@ -756,6 +755,7 @@ class _ChartCard extends StatelessWidget {
     required this.labelSpend,
     required this.labelAmountByMonth,
     required this.labelBarStyle,
+    required this.invertChart,
     required this.currency,
     required this.onPickLabels,
     required this.includedLabelCount,
@@ -776,6 +776,7 @@ class _ChartCard extends StatelessWidget {
   final List<_LabelSpend> labelSpend;
   final Map<DateTime, Map<String, double>> labelAmountByMonth;
   final LabelChartBarStyle labelBarStyle;
+  final bool invertChart;
   final String currency;
   final VoidCallback onPickLabels;
   final int? includedLabelCount;
@@ -951,6 +952,7 @@ class _ChartCard extends StatelessWidget {
                       currency: currency,
                       period: period,
                       barStyle: labelBarStyle,
+                      invertChart: invertChart,
                       onMonthTap: onMonthTap,
                     ),
             ),
@@ -1118,6 +1120,7 @@ class _LabelMonthBars extends StatelessWidget {
     required this.currency,
     required this.period,
     required this.barStyle,
+    required this.invertChart,
     required this.onMonthTap,
   });
 
@@ -1129,8 +1132,11 @@ class _LabelMonthBars extends StatelessWidget {
   final String currency;
   final _PeriodMode period;
   final LabelChartBarStyle barStyle;
+  final bool invertChart;
   final void Function(DateTime month) onMonthTap;
 
+  double _plot(double value) => invertChart ? -value : value;
+
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
@@ -1172,10 +1178,11 @@ class _LabelMonthBars extends StatelessWidget {
         var pos = 0.0;
         var neg = 0.0;
         void accumulate(double value) {
-          if (value > 0) {
-            pos += value;
-          } else if (value < 0) {
-            neg += value;
+          final plotted = _plot(value);
+          if (plotted > 0) {
+            pos += plotted;
+          } else if (plotted < 0) {
+            neg += plotted;
           }
         }
 
@@ -1187,11 +1194,11 @@ class _LabelMonthBars extends StatelessWidget {
         if (neg < minY) minY = neg;
       } else {
         for (final row in topLabels) {
-          final value = bucket[row.label.id] ?? 0;
+          final value = _plot(bucket[row.label.id] ?? 0);
           if (value > maxY) maxY = value;
           if (value < minY) minY = value;
         }
-        final other = otherFor(month);
+        final other = _plot(otherFor(month));
         if (other > maxY) maxY = other;
         if (other < minY) minY = other;
       }
@@ -1229,12 +1236,13 @@ class _LabelMonthBars extends StatelessWidget {
         var neg = 0.0;
 
         void addSegment(double value, Color color) {
-          if (value > 0) {
-            stackItems.add(BarChartRodStackItem(pos, pos + value, color));
-            pos += value;
-          } else if (value < 0) {
-            stackItems.add(BarChartRodStackItem(neg + value, neg, color));
-            neg += value;
+          final plotted = _plot(value);
+          if (plotted > 0) {
+            stackItems.add(BarChartRodStackItem(pos, pos + plotted, color));
+            pos += plotted;
+          } else if (plotted < 0) {
+            stackItems.add(BarChartRodStackItem(neg + plotted, neg, color));
+            neg += plotted;
           }
         }
 
@@ -1277,16 +1285,16 @@ class _LabelMonthBars extends StatelessWidget {
       return [
         for (final row in topLabels)
           BarChartRodData(
-            toY: bucket[row.label.id] ?? 0,
+            toY: _plot(bucket[row.label.id] ?? 0),
             width: rodWidth,
-            borderRadius: rodRadius(bucket[row.label.id] ?? 0),
+            borderRadius: rodRadius(_plot(bucket[row.label.id] ?? 0)),
             color: row.label.color,
           ),
         if (hasOther)
           BarChartRodData(
-            toY: otherFor(month),
+            toY: _plot(otherFor(month)),
             width: rodWidth,
-            borderRadius: rodRadius(otherFor(month)),
+            borderRadius: rodRadius(_plot(otherFor(month))),
             color: otherColor,
           ),
       ];
@@ -1342,7 +1350,7 @@ class _LabelMonthBars extends StatelessWidget {
               return BarTooltipItem(
                 '${_periodAxisLabel(month, period)}\n'
                 '$name\n'
-                '${formatMoney(rod.toY, currency)}',
+                '${formatMoney(invertChart ? -rod.toY : rod.toY, currency)}',
                 TextStyle(color: colors.onInverseSurface),
               );
             },
@@ -1627,19 +1635,17 @@ class _LabelHistoryCard extends StatelessWidget {
 
   /// Display amount + color for history rows.
   ///
-  /// Keeps the original `-amount` sign convention; for All, color follows the
-  /// displayed value (positive → green, negative → red).
+  /// Keep the aggregate sign (All already signed; In/Out use abs then restore
+  /// bank-like sign). Color follows the displayed value.
   (double display, Color color) _styleFor(double amount) {
-    switch (flow) {
-      case TxFlowFilter.expense:
-      case TxFlowFilter.income:
-        return (-amount.abs(), _kExpenseColor);
-      case TxFlowFilter.all:
-        final display = -amount;
-        if (display > 0) return (display, _kIncomeColor);
-        if (display < 0) return (display, _kExpenseColor);
-        return (0, _kExpenseColor);
-    }
+    final signed = switch (flow) {
+      TxFlowFilter.expense => -amount.abs(),
+      TxFlowFilter.income => amount.abs(),
+      TxFlowFilter.all => amount,
+    };
+    if (signed > 0) return (signed, _kIncomeColor);
+    if (signed < 0) return (signed, _kExpenseColor);
+    return (0, _kExpenseColor);
   }
 
   @override

lib/utils/app_theme.dart

@@ -297,7 +297,6 @@ abstract final class AppTheme {
         inactiveTrackColor: colorScheme.outlineVariant.withValues(alpha: 0.5),
         thumbColor: colorScheme.primary,
         overlayColor: colorScheme.primary.withValues(alpha: 0.16),
-        rangeThumbShape: const RoundRangeSliderThumbShape(enabledThumbRadius: 8),
         trackHeight: 4,
       ),
       checkboxTheme: CheckboxThemeData(

lib/widgets/label_filter_dialog.dart

@@ -491,9 +491,8 @@ class _TransactionFilterDialogState extends State<_TransactionFilterDialog> {
   late final TextEditingController _queryController;
   late final TextEditingController _labelSearchController;
   late final TextEditingController _exactAmountController;
-  late double _amountCeil;
-  late RangeValues _amountRange;
-  var _rangeTouched = false;
+  late final TextEditingController _minAmountController;
+  late final TextEditingController _maxAmountController;
 
   @override
   void initState() {
@@ -505,28 +504,20 @@ class _TransactionFilterDialogState extends State<_TransactionFilterDialog> {
     _queryController = TextEditingController(text: initial.query);
     _labelSearchController = TextEditingController();
 
-    var maxAbs = 0.0;
-    for (final tx in widget.transactions) {
-      final abs = tx.amount.abs();
-      if (abs > maxAbs) maxAbs = abs;
-    }
-    _amountCeil = maxAbs <= 0 ? 100.0 : (maxAbs * 1.05).ceilToDouble();
-    if (_amountCeil < 1) _amountCeil = 1;
-
     final exact = initial.amountRange.exact;
     _exactAmountController = TextEditingController(
       text: exact == null ? '' : _formatAmountInput(exact),
     );
-
-    final min = initial.amountRange.min ?? 0;
-    final max = initial.amountRange.max ?? _amountCeil;
-    _amountRange = RangeValues(
-      min.clamp(0, _amountCeil),
-      max.clamp(0, _amountCeil),
+    _minAmountController = TextEditingController(
+      text: exact == null && initial.amountRange.min != null
+          ? _formatAmountInput(initial.amountRange.min!)
+          : '',
+    );
+    _maxAmountController = TextEditingController(
+      text: exact == null && initial.amountRange.max != null
+          ? _formatAmountInput(initial.amountRange.max!)
+          : '',
     );
-    _rangeTouched =
-        exact == null && (initial.amountRange.min != null ||
-            initial.amountRange.max != null);
   }
 
   @override
@@ -534,6 +525,8 @@ class _TransactionFilterDialogState extends State<_TransactionFilterDialog> {
     _queryController.dispose();
     _labelSearchController.dispose();
     _exactAmountController.dispose();
+    _minAmountController.dispose();
+    _maxAmountController.dispose();
     super.dispose();
   }
 
@@ -544,12 +537,21 @@ class _TransactionFilterDialogState extends State<_TransactionFilterDialog> {
     return value.toStringAsFixed(2);
   }
 
-  double? _parseExactAmount() {
-    final raw = _exactAmountController.text.trim().replaceAll(',', '.');
+  double? _parseAmountField(TextEditingController controller) {
+    final raw = controller.text.trim().replaceAll(',', '.');
     if (raw.isEmpty) return null;
     return double.tryParse(raw);
   }
 
+  void _clearRangeFields() {
+    _minAmountController.clear();
+    _maxAmountController.clear();
+  }
+
+  void _clearExactField() {
+    _exactAmountController.clear();
+  }
+
   void _toggle(String id, bool selected) {
     setState(() {
       if (selected) {
@@ -561,15 +563,18 @@ class _TransactionFilterDialogState extends State<_TransactionFilterDialog> {
   }
 
   TxAmountRange get _amountResult {
-    final exact = _parseExactAmount();
+    final exact = _parseAmountField(_exactAmountController);
     if (exact != null && exact >= 0) {
       return TxAmountRange(exact: exact);
     }
-    if (!_rangeTouched) return const TxAmountRange();
-    final start = _amountRange.start <= 0.009 ? null : _amountRange.start;
-    final end =
-        _amountRange.end >= _amountCeil - 0.009 ? null : _amountRange.end;
-    return TxAmountRange(min: start, max: end);
+    final min = _parseAmountField(_minAmountController);
+    final max = _parseAmountField(_maxAmountController);
+    if (min == null && max == null) return const TxAmountRange();
+    // Swap if user typed max < min.
+    if (min != null && max != null && min > max) {
+      return TxAmountRange(min: max, max: min);
+    }
+    return TxAmountRange(min: min, max: max);
   }
 
   void _apply() {
@@ -721,7 +726,7 @@ class _TransactionFilterDialogState extends State<_TransactionFilterDialog> {
                       : IconButton(
                           tooltip: 'Clear exact',
                           onPressed: () {
-                            _exactAmountController.clear();
+                            _clearExactField();
                             setState(() {});
                           },
                           icon: const Icon(Icons.clear, size: 18),
@@ -729,8 +734,9 @@ class _TransactionFilterDialogState extends State<_TransactionFilterDialog> {
                 ),
                 onChanged: (_) {
                   setState(() {
-                    _rangeTouched = false;
-                    _amountRange = RangeValues(0, _amountCeil);
+                    if (_exactAmountController.text.trim().isNotEmpty) {
+                      _clearRangeFields();
+                    }
                   });
                 },
               ),
@@ -742,43 +748,64 @@ class _TransactionFilterDialogState extends State<_TransactionFilterDialog> {
                   fontWeight: FontWeight.w600,
                 ),
               ),
-              const SizedBox(height: 4),
-              Text(
-                _rangeTouched
-                    ? '${_amountRange.start.toStringAsFixed(0)} – ${_amountRange.end.toStringAsFixed(0)}'
-                    : 'Any amount',
-                style: theme.textTheme.bodySmall?.copyWith(
-                  color: colors.onSurfaceVariant,
-                ),
-              ),
-              RangeSlider(
-                values: _amountRange,
-                min: 0,
-                max: _amountCeil,
-                labels: RangeLabels(
-                  _amountRange.start.toStringAsFixed(0),
-                  _amountRange.end.toStringAsFixed(0),
-                ),
-                onChanged: (values) {
-                  setState(() {
-                    _exactAmountController.clear();
-                    _rangeTouched = true;
-                    _amountRange = values;
-                  });
-                },
+              const SizedBox(height: 6),
+              Row(
+                children: [
+                  Expanded(
+                    child: TextField(
+                      controller: _minAmountController,
+                      keyboardType: const TextInputType.numberWithOptions(
+                        decimal: true,
+                      ),
+                      decoration: const InputDecoration(
+                        isDense: true,
+                        labelText: 'Min',
+                        hintText: '0',
+                      ),
+                      onChanged: (_) {
+                        setState(() {
+                          if (_minAmountController.text.trim().isNotEmpty ||
+                              _maxAmountController.text.trim().isNotEmpty) {
+                            _clearExactField();
+                          }
+                        });
+                      },
+                    ),
+                  ),
+                  const SizedBox(width: 12),
+                  Expanded(
+                    child: TextField(
+                      controller: _maxAmountController,
+                      keyboardType: const TextInputType.numberWithOptions(
+                        decimal: true,
+                      ),
+                      decoration: const InputDecoration(
+                        isDense: true,
+                        labelText: 'Max',
+                        hintText: '∞',
+                      ),
+                      onChanged: (_) {
+                        setState(() {
+                          if (_minAmountController.text.trim().isNotEmpty ||
+                              _maxAmountController.text.trim().isNotEmpty) {
+                            _clearExactField();
+                          }
+                        });
+                      },
+                    ),
+                  ),
+                ],
               ),
               Align(
                 alignment: Alignment.centerRight,
                 child: TextButton(
-                  onPressed: !_rangeTouched
+                  onPressed: _minAmountController.text.trim().isEmpty &&
+                          _maxAmountController.text.trim().isEmpty
                       ? null
                       : () {
-                          setState(() {
-                            _rangeTouched = false;
-                            _amountRange = RangeValues(0, _amountCeil);
-                          });
+                          setState(_clearRangeFields);
                         },
-                  child: const Text('Reset range'),
+                  child: const Text('Clear range'),
                 ),
               ),
               const SizedBox(height: 8),