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feat(chart): interactive zoom/pan controls, pattern overlays, predictions, individual pattern filtering and landscape fullscreen mode

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This commit is contained in:
Kleidukos
2026-08-15 01:03:57 +02:00
parent 1ccb6b613f
commit 5a6a50a609
12 changed files with 1501 additions and 1165 deletions
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FinlyticApp/lib/features/asset_detail/views/fullscreen_chart_screen.dart
+177
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@@ -0,0 +1,177 @@
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import '../../../core/theme/app_theme.dart';
import '../bloc/technical/asset_technical_bloc.dart';
import '../bloc/technical/asset_technical_event.dart';
import '../bloc/technical/asset_technical_state.dart';
import '../widgets/chart/candlestick_chart.dart';
import '../widgets/technical/indicator_ribbon_bar.dart';
class FullscreenChartScreen extends StatefulWidget {
final String isin;
final String? symbol;
final AssetTechnicalBloc technicalBloc;
const FullscreenChartScreen({
super.key,
required this.isin,
this.symbol,
required this.technicalBloc,
});
static Future<void> open(BuildContext context, {required String isin, String? symbol}) {
final bloc = context.read<AssetTechnicalBloc>();
return Navigator.of(context).push(
PageRouteBuilder(
opaque: true,
pageBuilder: (ctx, anim, secAnim) => FullscreenChartScreen(
isin: isin,
symbol: symbol,
technicalBloc: bloc,
),
transitionsBuilder: (ctx, anim, secAnim, child) {
return FadeTransition(opacity: anim, child: child);
},
),
);
}
@override
State<FullscreenChartScreen> createState() => _FullscreenChartScreenState();
}
class _FullscreenChartScreenState extends State<FullscreenChartScreen> {
@override
void initState() {
super.initState();
// Rotate to landscape on mobile devices
SystemChrome.setPreferredOrientations([
DeviceOrientation.landscapeLeft,
DeviceOrientation.landscapeRight,
]);
SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersiveSticky);
}
@override
void dispose() {
// Restore orientation back to default portrait/auto
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitUp,
DeviceOrientation.portraitDown,
DeviceOrientation.landscapeLeft,
DeviceOrientation.landscapeRight,
]);
SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
super.dispose();
}
@override
Widget build(BuildContext context) {
final theme = AppTheme.activePreset;
return BlocProvider.value(
value: widget.technicalBloc,
child: Scaffold(
backgroundColor: theme.darkBackground,
body: SafeArea(
child: BlocBuilder<AssetTechnicalBloc, AssetTechnicalState>(
builder: (context, state) {
if (state is AssetTechnicalLoading) {
return const Center(child: CircularProgressIndicator());
}
if (state is AssetTechnicalLoaded && state.data != null) {
final data = state.data!;
final activePatterns = <ChartPatternModel>[];
for (int i = 0; i < data.patterns.length; i++) {
if (!state.disabledPatternIndices.contains(i)) {
activePatterns.add(data.patterns[i]);
}
}
return Column(
children: [
_buildHeader(context, theme, state),
Expanded(
child: LayoutBuilder(
builder: (ctx, constraints) {
return CandlestickChart(
candles: data.candles,
indicators: data.indicators,
patterns: activePatterns,
signals: data.signals,
showSma50: state.showSma50,
showSma200: state.showSma200,
showEma: state.showEma,
showPatterns: state.showPatterns,
showSignals: state.showSignals,
showSupertrend: state.showSupertrend,
height: constraints.maxHeight,
isFullscreen: true,
onToggleFullscreen: () => Navigator.of(context).pop(),
);
},
),
),
],
);
}
return Center(
child: Text('Keine Chartdaten verfügbar', style: TextStyle(color: theme.textMuted)),
);
},
),
),
),
);
}
Widget _buildHeader(BuildContext context, ThemePreset theme, AssetTechnicalLoaded state) {
return Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
decoration: BoxDecoration(
color: theme.cardSurface,
border: Border(bottom: BorderSide(color: theme.glassBorder)),
),
child: Row(
children: [
IconButton(
icon: const Icon(Icons.arrow_back, size: 20, color: Colors.white70),
tooltip: 'Zurück',
onPressed: () => Navigator.of(context).pop(),
),
const SizedBox(width: 4),
Text(
widget.symbol ?? widget.isin,
style: const TextStyle(fontWeight: FontWeight.bold, color: Colors.white, fontSize: 14),
),
const SizedBox(width: 12),
Expanded(
child: IndicatorRibbonBar(
showSma50: state.showSma50,
showSma200: state.showSma200,
showEma: state.showEma,
showSupertrend: state.showSupertrend,
showPatterns: state.showPatterns,
showSignals: state.showSignals,
onToggleSma50: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSma50: v)),
onToggleSma200: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSma200: v)),
onToggleEma: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showEma: v)),
onToggleSupertrend: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSupertrend: v)),
onTogglePatterns: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showPatterns: v)),
onToggleSignals: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSignals: v)),
),
),
const SizedBox(width: 8),
IconButton(
icon: const Icon(Icons.fullscreen_exit, size: 22, color: Colors.white70),
tooltip: 'Vollbild beenden',
onPressed: () => Navigator.of(context).pop(),
),
],
),
);
}
}
FinlyticApp/lib/features/asset_detail/views/tabs/technical_tab.dart
+81 -435
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@@ -1,18 +1,19 @@
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import '../../../../core/theme/app_theme.dart';
import '../../../../core/widgets/glass_container.dart';
import '../../../../core/widgets/shimmer_loading.dart';
import '../../../../core/widgets/status_badge.dart';
import '../../bloc/technical/asset_technical_bloc.dart';
import '../../bloc/technical/asset_technical_event.dart';
import '../../bloc/technical/asset_technical_state.dart';
import '../../utils/metric_explanations.dart';
import '../../utils/pattern_explanations.dart';
import '../../widgets/chart/candlestick_chart.dart';
import '../../widgets/technical/pattern_card_item.dart';
import '../../widgets/technical/signal_card_item.dart';
import '../../widgets/technical/indicator_ribbon_bar.dart';
class TechnicalTab extends StatefulWidget {
import '../fullscreen_chart_screen.dart';
class TechnicalTab extends StatelessWidget {
final String isin;
final String? symbol;
final bool isDesktopLeftPanel;
@@ -30,31 +31,6 @@ class TechnicalTab extends StatefulWidget {
required this.isin,
});
@override
State<TechnicalTab> createState() => _TechnicalTabState();
}
class _TechnicalTabState extends State<TechnicalTab> {
bool _showSma50 = true;
bool _showSma200 = true;
bool _showEma = true;
bool _showPatterns = true;
bool _showSignals = true;
bool _showSupertrend = true;
// Set of disabled pattern indices for individual toggling
final Set<int> _disabledPatternIndices = {};
@override
void initState() {
super.initState();
}
@override
void didUpdateWidget(covariant TechnicalTab oldWidget) {
super.didUpdateWidget(oldWidget);
}
@override
Widget build(BuildContext context) {
return BlocBuilder<AssetTechnicalBloc, AssetTechnicalState>(
@@ -73,12 +49,14 @@ class _TechnicalTabState extends State<TechnicalTab> {
Icon(Icons.show_chart, color: AppTheme.accentRed, size: 48),
const SizedBox(height: 12),
Text(
'Fehler beim Laden der Technischen Analyse: ${state.message}',
style: const TextStyle(color: Colors.white70)),
'Fehler beim Laden der Technischen Analyse: ${state.message}',
style: const TextStyle(color: Colors.white70),
),
const SizedBox(height: 16),
ElevatedButton.icon(
onPressed: () => context.read<AssetTechnicalBloc>().add(
LoadAssetTechnical(widget.isin, ticker: widget.symbol, forceRefresh: true)),
LoadAssetTechnical(isin, ticker: symbol, forceRefresh: true),
),
icon: const Icon(Icons.refresh),
label: const Text('Erneut versuchen'),
),
@@ -88,221 +66,91 @@ class _TechnicalTabState extends State<TechnicalTab> {
);
}
if (state is AssetTechnicalLoaded) {
final data = state.data;
List<CandleModel> candles = [];
List<ChartPatternModel> patterns = [];
List<StrategySignalModel> signals = [];
List<IndicatorModel> indicators = [];
if (state is AssetTechnicalLoaded && state.data != null) {
final data = state.data!;
final candles = data.candles;
final patterns = data.patterns;
final signals = data.signals;
final indicators = data.indicators;
if (data != null) {
candles = data.candles
.map((c) => CandleModel(
time: c.timestamp,
open: c.open,
high: c.high,
low: c.low,
close: c.close,
volume: c.volume))
.toList();
patterns = data.patterns
.map((p) => ChartPatternModel(
type: p.type,
upperLine: p.upperLine.map((pt) => PatternPoint(pt.time, pt.price)).toList(),
lowerLine: p.lowerLine.map((pt) => PatternPoint(pt.time, pt.price)).toList(),
))
.toList();
signals = data.signals
.map((s) => StrategySignalModel(
type: 'strategy',
timestamp: s.date,
direction: s.type,
price: s.price,
description: s.title))
.toList();
indicators = data.indicators
.map((i) => IndicatorModel(
timestamp: i.timestamp,
ema20: i.ema20,
sma50: i.sma50,
sma200: i.sma200,
supertrendUpper: i.supertrendUpper,
supertrendLower: i.supertrendLower,
supertrendDirection: i.supertrendDirection))
.toList();
final activePatterns = <ChartPatternModel>[];
for (int i = 0; i < patterns.length; i++) {
if (!state.disabledPatternIndices.contains(i)) {
activePatterns.add(patterns[i]);
}
}
// Filter patterns according to individual checkbox states
final activePatterns = [
for (int i = 0; i < patterns.length; i++)
if (!_disabledPatternIndices.contains(i)) patterns[i]
];
final chartRibbon = GlassContainer(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
child: SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: Row(
children: [
_buildIndicatorChip(
'EMA (20)',
_showEma,
(v) => setState(() => _showEma = v),
Colors.blueAccent),
const SizedBox(width: 6),
_buildIndicatorChip(
'SMA (50)',
_showSma50,
(v) => setState(() => _showSma50 = v),
Colors.orangeAccent),
const SizedBox(width: 6),
_buildIndicatorChip(
'SMA (200)',
_showSma200,
(v) => setState(() => _showSma200 = v),
Colors.redAccent),
const SizedBox(width: 6),
_buildIndicatorChip(
'Supertrend',
_showSupertrend,
(v) => setState(() => _showSupertrend = v),
AppTheme.primaryEmerald),
const SizedBox(width: 6),
_buildIndicatorChip(
'Alle Muster',
_showPatterns,
(v) => setState(() => _showPatterns = v),
Colors.amberAccent),
const SizedBox(width: 6),
_buildIndicatorChip(
'Signale',
_showSignals,
(v) => setState(() => _showSignals = v),
AppTheme.accentCyan),
],
),
),
final chartWidget = CandlestickChart(
candles: candles,
indicators: indicators,
patterns: activePatterns,
signals: signals,
showSma50: state.showSma50,
showSma200: state.showSma200,
showEma: state.showEma,
showPatterns: state.showPatterns,
showSignals: state.showSignals,
showSupertrend: state.showSupertrend,
height: chartHeight,
onToggleFullscreen: () => FullscreenChartScreen.open(context, isin: isin, symbol: symbol),
);
final chartWidget = SizedBox(
height: widget.chartHeight,
width: double.infinity,
child: CandlestickChart(
candles: candles,
patterns: activePatterns,
signals: signals,
indicators: indicators,
showPatterns: _showPatterns,
showEma: _showEma,
showSma50: _showSma50,
showSma200: _showSma200,
showSignals: _showSignals,
showSupertrend: _showSupertrend,
),
final chartRibbon = IndicatorRibbonBar(
showSma50: state.showSma50,
showSma200: state.showSma200,
showEma: state.showEma,
showSupertrend: state.showSupertrend,
showPatterns: state.showPatterns,
showSignals: state.showSignals,
onToggleSma50: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSma50: v)),
onToggleSma200: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSma200: v)),
onToggleEma: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showEma: v)),
onToggleSupertrend: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSupertrend: v)),
onTogglePatterns: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showPatterns: v)),
onToggleSignals: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSignals: v)),
onToggleFullscreen: () => FullscreenChartScreen.open(context, isin: isin, symbol: symbol),
);
if (widget.showChartOnly) {
if (showChartOnly) {
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: [
chartRibbon,
const SizedBox(height: 8),
const SizedBox(height: 10),
chartWidget,
],
);
}
final detailsSection = Padding(
padding: const EdgeInsets.symmetric(horizontal: 16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(
children: [
Icon(Icons.architecture_outlined,
color: AppTheme.primaryEmerald, size: 20),
const SizedBox(width: 8),
const Text('Erkannte Chart-Muster & Signale',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
color: Colors.white)),
],
),
if (patterns.isNotEmpty)
TextButton.icon(
onPressed: () {
setState(() {
if (_disabledPatternIndices.length ==
patterns.length) {
_disabledPatternIndices.clear();
} else {
_disabledPatternIndices.addAll(
List.generate(
patterns.length, (i) => i));
}
});
},
icon: Icon(
_disabledPatternIndices.isEmpty
? Icons.deselect
: Icons.select_all,
size: 16,
color: Colors.amberAccent),
label: Text(
_disabledPatternIndices.isEmpty
? 'Alle abwählen'
: 'Alle anwählen',
style: const TextStyle(
color: Colors.amberAccent, fontSize: 12)),
),
],
),
const SizedBox(height: 12),
if (patterns.isEmpty && signals.isEmpty)
GlassContainer(
padding: const EdgeInsets.all(16),
child: Center(
child: Text(
'Zurzeit wurden keine akuten Formationen oder Strategie-Signale identifiziert.',
style: TextStyle(
color: AppTheme.textMuted, fontSize: 12)),
),
)
else ...[
if (patterns.isNotEmpty) ...[
Text(
'Formationen & Trendlinien (Mit Checkbox im Chart schalten):',
style: TextStyle(
color: AppTheme.textSecondary,
fontWeight: FontWeight.w600,
fontSize: 13)),
const SizedBox(height: 6),
...List.generate(
patterns.length,
(index) =>
_buildPatternCard(patterns[index], index)),
const SizedBox(height: 12),
],
if (signals.isNotEmpty) ...[
Text('Strategie-Signale:',
style: TextStyle(
color: AppTheme.textSecondary,
fontWeight: FontWeight.w600,
fontSize: 13)),
const SizedBox(height: 6),
...signals.map((s) => _buildSignalCard(s)),
],
],
final detailsSection = Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
if (patterns.isNotEmpty) ...[
const Text('Erkannte Chartformationen & Muster', style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold, color: Colors.white)),
const SizedBox(height: 8),
for (int i = 0; i < patterns.length; i++)
PatternCardItem(
pattern: patterns[i],
index: i,
isEnabled: !state.disabledPatternIndices.contains(i),
onToggle: (enabled) {
context.read<AssetTechnicalBloc>().add(
TogglePatternFilter(patternIndex: i, enabled: enabled),
);
},
),
const SizedBox(height: 16),
],
),
if (signals.isNotEmpty) ...[
const Text('Strategische Kauf- & Verkaufssignale', style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold, color: Colors.white)),
const SizedBox(height: 8),
for (final sig in signals) SignalCardItem(signal: sig),
],
],
);
if (widget.showDetailsOnly) {
if (showDetailsOnly) {
return SingleChildScrollView(
padding: const EdgeInsets.symmetric(vertical: 16),
child: detailsSection,
@@ -325,228 +173,26 @@ class _TechnicalTabState extends State<TechnicalTab> {
}
return Center(
child: Text('Keine technisches Indikatoren verfügbar',
style: TextStyle(color: AppTheme.textMuted)),
child: Text('Keine technisches Indikatoren verfügbar', style: TextStyle(color: AppTheme.textMuted)),
);
},
);
}
Widget _buildPatternCard(ChartPatternModel pattern, int index) {
final isEnabled = !_disabledPatternIndices.contains(index);
final patternColor = PatternExplanations.getColorForPattern(pattern.type);
final allPoints = [...pattern.upperLine, ...pattern.lowerLine];
DateTime? startDate;
DateTime? endDate;
if (allPoints.isNotEmpty) {
allPoints.sort((a, b) => a.time.compareTo(b.time));
startDate = allPoints.first.time;
endDate = allPoints.last.time;
}
final dateFormat = DateFormat('dd.MM.yy');
final dateStr = startDate != null && endDate != null
? '${dateFormat.format(startDate)} - ${dateFormat.format(endDate)}'
: 'Unbekannt';
return Padding(
padding: const EdgeInsets.only(bottom: 8),
child: GlassContainer(
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 6),
child: Row(
children: [
// Checkbox for individual pattern toggling on the chart
Checkbox(
value: isEnabled,
activeColor: patternColor,
checkColor: Colors.black,
side:
BorderSide(color: patternColor.withValues(alpha: 0.6)),
onChanged: (bool? val) {
setState(() {
if (val == true) {
_disabledPatternIndices.remove(index);
} else {
_disabledPatternIndices.add(index);
}
});
},
),
Expanded(
child: InkWell(
onTap: () => PatternExplanations.showPatternDetails(
context, pattern.type),
borderRadius: BorderRadius.circular(8),
child: Padding(
padding:
const EdgeInsets.symmetric(vertical: 4, horizontal: 4),
child: Row(
children: [
Container(
padding: const EdgeInsets.all(8),
decoration: BoxDecoration(
color: isEnabled
? patternColor.withValues(alpha: 0.15)
: AppTheme.glassSurface,
borderRadius: BorderRadius.circular(8),
),
child: Icon(Icons.polyline_outlined,
color: isEnabled
? patternColor
: AppTheme.textMuted,
size: 20),
),
const SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Text(
pattern.type,
style: TextStyle(
fontWeight: FontWeight.bold,
color: isEnabled
? Colors.white
: AppTheme.textMuted,
fontSize: 14,
decoration: isEnabled
? null
: TextDecoration.lineThrough,
),
),
const SizedBox(width: 6),
Icon(Icons.info_outline,
size: 14, color: AppTheme.textMuted),
],
),
Text(
'Zeitraum: $dateStr\n'
'Linien: Oben (${pattern.upperLine.length} Pkt.) / Unten (${pattern.lowerLine.length} Pkt.)',
style: TextStyle(
color: AppTheme.textMuted, fontSize: 11, height: 1.3),
),
],
),
),
StatusBadge(
label: isEnabled ? 'AKTIV' : 'AUS',
color:
isEnabled ? patternColor : AppTheme.textMuted,
),
],
),
),
),
),
],
),
),
);
}
Widget _buildSignalCard(StrategySignalModel signal) {
final isBuy = signal.type.toUpperCase() == 'BUY';
final color = isBuy ? AppTheme.primaryEmerald : AppTheme.accentRed;
return Padding(
padding: const EdgeInsets.only(bottom: 8),
child: GlassContainer(
padding: const EdgeInsets.all(12),
child: Row(
children: [
Container(
padding: const EdgeInsets.all(8),
decoration: BoxDecoration(
color: color.withValues(alpha: 0.15),
borderRadius: BorderRadius.circular(8),
),
child: Icon(isBuy ? Icons.north_east : Icons.south_east,
color: color, size: 20),
),
const SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Text(signal.type.toUpperCase(),
style: TextStyle(
fontWeight: FontWeight.bold,
color: color,
fontSize: 14)),
const SizedBox(width: 8),
Text('@ €${signal.price.toStringAsFixed(2)}',
style: const TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 13)),
],
),
const SizedBox(height: 4),
Text(
signal.description.isNotEmpty
? signal.description
: 'Strategisches Kaufsignal ausgelöst durch technische Indikatoren.',
style: TextStyle(
color: AppTheme.textSecondary, fontSize: 12)),
],
),
),
StatusBadge(label: 'SIGNAL', color: color),
],
),
),
);
}
Widget _buildIndicatorChip(String label, bool isSelected,
ValueChanged<bool> onChanged, Color color) {
return Row(
mainAxisSize: MainAxisSize.min,
children: [
FilterChip(
selected: isSelected,
label: Text(label,
style: TextStyle(
color: isSelected ? Colors.black : color,
fontSize: 11,
fontWeight: FontWeight.bold)),
selectedColor: color,
backgroundColor: color.withValues(alpha: 0.15),
side: BorderSide(color: color.withValues(alpha: 0.4)),
showCheckmark: false,
onSelected: onChanged,
),
InkWell(
onTap: () => MetricExplanations.show(context, label),
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 2),
child:
Icon(Icons.info_outline, size: 14, color: AppTheme.textMuted),
),
),
],
);
}
Widget _buildTechnicalShimmer(BuildContext context) {
if (widget.showChartOnly) {
if (showChartOnly) {
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: [
const ShimmerLoading(width: double.infinity, height: 42, borderRadius: 12),
const SizedBox(height: 8),
ShimmerLoading(width: double.infinity, height: widget.chartHeight, borderRadius: 16),
ShimmerLoading(width: double.infinity, height: chartHeight, borderRadius: 16),
],
);
}
if (widget.showDetailsOnly) {
if (showDetailsOnly) {
return SingleChildScrollView(
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
child: Column(
@@ -570,7 +216,7 @@ class _TechnicalTabState extends State<TechnicalTab> {
children: [
const ShimmerLoading(width: double.infinity, height: 42, borderRadius: 12),
const SizedBox(height: 8),
ShimmerLoading(width: double.infinity, height: widget.chartHeight, borderRadius: 16),
ShimmerLoading(width: double.infinity, height: chartHeight, borderRadius: 16),
const SizedBox(height: 16),
const ShimmerLoading(width: 240, height: 20, borderRadius: 6),
const SizedBox(height: 14),