feat(chart): interactive zoom/pan controls, pattern overlays, predictions, individual pattern filtering and landscape fullscreen mode
This commit is contained in:
@@ -15,5 +15,32 @@ class AssetTechnicalBloc extends Bloc<AssetTechnicalEvent, AssetTechnicalState>
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emit(AssetTechnicalError(e.toString()));
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}
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});
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on<TogglePatternFilter>((event, emit) {
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if (state is AssetTechnicalLoaded) {
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final current = state as AssetTechnicalLoaded;
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final updated = Set<int>.from(current.disabledPatternIndices);
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if (event.enabled) {
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updated.remove(event.patternIndex);
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} else {
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updated.add(event.patternIndex);
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}
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emit(current.copyWith(disabledPatternIndices: updated));
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}
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});
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on<ToggleIndicatorFilter>((event, emit) {
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if (state is AssetTechnicalLoaded) {
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final current = state as AssetTechnicalLoaded;
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emit(current.copyWith(
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showSma50: event.showSma50,
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showSma200: event.showSma200,
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showEma: event.showEma,
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showSupertrend: event.showSupertrend,
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showPatterns: event.showPatterns,
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showSignals: event.showSignals,
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));
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}
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});
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}
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}
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@@ -1,7 +1,32 @@
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abstract class AssetTechnicalEvent {}
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class LoadAssetTechnical extends AssetTechnicalEvent {
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final String isin;
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final bool forceRefresh;
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final String? ticker;
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LoadAssetTechnical(this.isin, {this.forceRefresh = false, this.ticker});
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}
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class TogglePatternFilter extends AssetTechnicalEvent {
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final int patternIndex;
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final bool enabled;
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TogglePatternFilter({required this.patternIndex, required this.enabled});
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}
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class ToggleIndicatorFilter extends AssetTechnicalEvent {
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final bool? showSma50;
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final bool? showSma200;
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final bool? showEma;
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final bool? showSupertrend;
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final bool? showPatterns;
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final bool? showSignals;
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ToggleIndicatorFilter({
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this.showSma50,
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this.showSma200,
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this.showEma,
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this.showSupertrend,
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this.showPatterns,
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this.showSignals,
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});
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}
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@@ -1,12 +1,55 @@
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import '../../models/technical_analysis_model.dart';
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abstract class AssetTechnicalState {}
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class AssetTechnicalInitial extends AssetTechnicalState {}
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class AssetTechnicalLoading extends AssetTechnicalState {}
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class AssetTechnicalLoaded extends AssetTechnicalState {
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final TechnicalAnalysisModel? data;
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AssetTechnicalLoaded(this.data);
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final Set<int> disabledPatternIndices;
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final bool showSma50;
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final bool showSma200;
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final bool showEma;
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final bool showSupertrend;
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final bool showPatterns;
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final bool showSignals;
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AssetTechnicalLoaded(
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this.data, {
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this.disabledPatternIndices = const {},
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this.showSma50 = true,
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this.showSma200 = true,
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this.showEma = true,
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this.showSupertrend = true,
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this.showPatterns = true,
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this.showSignals = true,
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});
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AssetTechnicalLoaded copyWith({
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TechnicalAnalysisModel? data,
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Set<int>? disabledPatternIndices,
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bool? showSma50,
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bool? showSma200,
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bool? showEma,
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bool? showSupertrend,
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bool? showPatterns,
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bool? showSignals,
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}) {
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return AssetTechnicalLoaded(
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data ?? this.data,
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disabledPatternIndices: disabledPatternIndices ?? this.disabledPatternIndices,
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showSma50: showSma50 ?? this.showSma50,
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showSma200: showSma200 ?? this.showSma200,
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showEma: showEma ?? this.showEma,
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showSupertrend: showSupertrend ?? this.showSupertrend,
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showPatterns: showPatterns ?? this.showPatterns,
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showSignals: showSignals ?? this.showSignals,
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);
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}
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}
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class AssetTechnicalError extends AssetTechnicalState {
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final String message;
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AssetTechnicalError(this.message);
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@@ -198,15 +198,16 @@ class ChartPatternModel extends Equatable {
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class TechnicalAnalysisModel extends Equatable {
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final String symbol;
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final String currency;
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final double? currentPrice;
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final String trend;
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final String rsi;
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final String macd;
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final String overallSignal;
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final String sma50;
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final String sma200;
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final double vix;
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final String sp500Trend;
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final double dxy;
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final double? vix;
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final String? sp500Trend;
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final double? dxy;
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final double? stopLossAtr;
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final List<CandleModel> candles;
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final List<IndicatorModel> indicators;
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@@ -216,15 +217,16 @@ class TechnicalAnalysisModel extends Equatable {
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const TechnicalAnalysisModel({
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required this.symbol,
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this.currency = 'EUR',
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this.currentPrice,
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required this.trend,
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required this.rsi,
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required this.macd,
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required this.overallSignal,
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required this.sma50,
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required this.sma200,
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this.vix = 16.5,
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this.sp500Trend = 'Bullish',
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this.dxy = 104.2,
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this.vix,
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this.sp500Trend,
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this.dxy,
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this.stopLossAtr,
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this.candles = const [],
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this.indicators = const [],
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@@ -245,7 +247,6 @@ class TechnicalAnalysisModel extends Equatable {
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var rawPatterns = json['patterns'] as List<dynamic>? ?? [];
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var patternsList = rawPatterns.map((p) => ChartPatternModel.fromJson(p as Map<String, dynamic>)).toList();
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final lastInd = indicatorsList.isNotEmpty ? indicatorsList.last : null;
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final regime = json['marketRegime'] as Map<String, dynamic>?;
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@@ -259,17 +260,18 @@ class TechnicalAnalysisModel extends Equatable {
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}
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return TechnicalAnalysisModel(
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symbol: json['symbol']?.toString() ?? json['isin']?.toString() ?? json['ticker']?.toString() ?? '',
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symbol: json['symbol']?.toString() ?? '',
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currency: json['currency']?.toString() ?? 'EUR',
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currentPrice: (json['currentPrice'] as num?)?.toDouble(),
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trend: parsedTrend,
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rsi: lastInd?.rsi14?.toStringAsFixed(1) ?? 'N/A',
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macd: lastInd?.macdHistogram?.toStringAsFixed(2) ?? lastInd?.macdLine?.toStringAsFixed(2) ?? 'N/A',
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overallSignal: parsedSignal,
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sma50: lastInd?.sma50?.toStringAsFixed(2) ?? 'N/A',
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sma200: lastInd?.sma200?.toStringAsFixed(2) ?? 'N/A',
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vix: (regime?['vixValue'] as num?)?.toDouble() ?? 16.5,
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sp500Trend: regime?['marketTrend']?.toString() ?? 'Bullish',
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dxy: (regime?['dxyValue'] as num?)?.toDouble() ?? 104.2,
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vix: (regime?['vixValue'] as num?)?.toDouble(),
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sp500Trend: regime?['marketTrend']?.toString(),
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dxy: (regime?['dxyValue'] as num?)?.toDouble(),
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stopLossAtr: lastInd?.recommendedStopLoss,
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candles: candlesList,
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indicators: indicatorsList,
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@@ -0,0 +1,177 @@
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import '../../../core/theme/app_theme.dart';
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import '../bloc/technical/asset_technical_bloc.dart';
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import '../bloc/technical/asset_technical_event.dart';
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import '../bloc/technical/asset_technical_state.dart';
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import '../widgets/chart/candlestick_chart.dart';
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import '../widgets/technical/indicator_ribbon_bar.dart';
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class FullscreenChartScreen extends StatefulWidget {
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final String isin;
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final String? symbol;
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final AssetTechnicalBloc technicalBloc;
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const FullscreenChartScreen({
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super.key,
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required this.isin,
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this.symbol,
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required this.technicalBloc,
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});
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static Future<void> open(BuildContext context, {required String isin, String? symbol}) {
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final bloc = context.read<AssetTechnicalBloc>();
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return Navigator.of(context).push(
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PageRouteBuilder(
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opaque: true,
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pageBuilder: (ctx, anim, secAnim) => FullscreenChartScreen(
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isin: isin,
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symbol: symbol,
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technicalBloc: bloc,
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),
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transitionsBuilder: (ctx, anim, secAnim, child) {
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return FadeTransition(opacity: anim, child: child);
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},
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),
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);
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}
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@override
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State<FullscreenChartScreen> createState() => _FullscreenChartScreenState();
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}
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class _FullscreenChartScreenState extends State<FullscreenChartScreen> {
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@override
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void initState() {
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super.initState();
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// Rotate to landscape on mobile devices
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SystemChrome.setPreferredOrientations([
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DeviceOrientation.landscapeLeft,
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DeviceOrientation.landscapeRight,
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]);
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SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersiveSticky);
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}
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@override
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void dispose() {
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// Restore orientation back to default portrait/auto
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SystemChrome.setPreferredOrientations([
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DeviceOrientation.portraitUp,
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DeviceOrientation.portraitDown,
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DeviceOrientation.landscapeLeft,
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DeviceOrientation.landscapeRight,
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]);
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SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final theme = AppTheme.activePreset;
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return BlocProvider.value(
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value: widget.technicalBloc,
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child: Scaffold(
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backgroundColor: theme.darkBackground,
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body: SafeArea(
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child: BlocBuilder<AssetTechnicalBloc, AssetTechnicalState>(
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builder: (context, state) {
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if (state is AssetTechnicalLoading) {
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return const Center(child: CircularProgressIndicator());
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}
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if (state is AssetTechnicalLoaded && state.data != null) {
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final data = state.data!;
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final activePatterns = <ChartPatternModel>[];
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for (int i = 0; i < data.patterns.length; i++) {
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if (!state.disabledPatternIndices.contains(i)) {
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activePatterns.add(data.patterns[i]);
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}
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}
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return Column(
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children: [
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_buildHeader(context, theme, state),
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Expanded(
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child: LayoutBuilder(
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builder: (ctx, constraints) {
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return CandlestickChart(
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candles: data.candles,
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indicators: data.indicators,
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patterns: activePatterns,
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signals: data.signals,
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showSma50: state.showSma50,
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showSma200: state.showSma200,
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showEma: state.showEma,
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showPatterns: state.showPatterns,
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showSignals: state.showSignals,
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showSupertrend: state.showSupertrend,
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height: constraints.maxHeight,
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isFullscreen: true,
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onToggleFullscreen: () => Navigator.of(context).pop(),
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);
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},
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),
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),
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],
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);
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}
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return Center(
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child: Text('Keine Chartdaten verfügbar', style: TextStyle(color: theme.textMuted)),
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);
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},
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),
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),
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),
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);
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}
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Widget _buildHeader(BuildContext context, ThemePreset theme, AssetTechnicalLoaded state) {
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
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decoration: BoxDecoration(
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color: theme.cardSurface,
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border: Border(bottom: BorderSide(color: theme.glassBorder)),
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),
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child: Row(
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children: [
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IconButton(
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icon: const Icon(Icons.arrow_back, size: 20, color: Colors.white70),
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tooltip: 'Zurück',
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onPressed: () => Navigator.of(context).pop(),
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),
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const SizedBox(width: 4),
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Text(
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widget.symbol ?? widget.isin,
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style: const TextStyle(fontWeight: FontWeight.bold, color: Colors.white, fontSize: 14),
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),
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const SizedBox(width: 12),
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Expanded(
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child: IndicatorRibbonBar(
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showSma50: state.showSma50,
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showSma200: state.showSma200,
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showEma: state.showEma,
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showSupertrend: state.showSupertrend,
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showPatterns: state.showPatterns,
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showSignals: state.showSignals,
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onToggleSma50: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSma50: v)),
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onToggleSma200: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSma200: v)),
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onToggleEma: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showEma: v)),
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onToggleSupertrend: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSupertrend: v)),
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onTogglePatterns: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showPatterns: v)),
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onToggleSignals: (v) => context.read<AssetTechnicalBloc>().add(ToggleIndicatorFilter(showSignals: v)),
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),
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),
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const SizedBox(width: 8),
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IconButton(
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icon: const Icon(Icons.fullscreen_exit, size: 22, color: Colors.white70),
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tooltip: 'Vollbild beenden',
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onPressed: () => Navigator.of(context).pop(),
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),
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],
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),
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);
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}
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}
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@@ -1,18 +1,19 @@
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import 'package:flutter/material.dart';
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import 'package:intl/intl.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import '../../../../core/theme/app_theme.dart';
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import '../../../../core/widgets/glass_container.dart';
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import '../../../../core/widgets/shimmer_loading.dart';
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import '../../../../core/widgets/status_badge.dart';
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import '../../bloc/technical/asset_technical_bloc.dart';
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import '../../bloc/technical/asset_technical_event.dart';
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import '../../bloc/technical/asset_technical_state.dart';
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import '../../utils/metric_explanations.dart';
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import '../../utils/pattern_explanations.dart';
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import '../../widgets/chart/candlestick_chart.dart';
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import '../../widgets/technical/pattern_card_item.dart';
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import '../../widgets/technical/signal_card_item.dart';
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import '../../widgets/technical/indicator_ribbon_bar.dart';
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class TechnicalTab extends StatefulWidget {
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import '../fullscreen_chart_screen.dart';
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class TechnicalTab extends StatelessWidget {
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final String isin;
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final String? symbol;
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final bool isDesktopLeftPanel;
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@@ -30,31 +31,6 @@ class TechnicalTab extends StatefulWidget {
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required this.isin,
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});
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@override
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State<TechnicalTab> createState() => _TechnicalTabState();
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}
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class _TechnicalTabState extends State<TechnicalTab> {
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bool _showSma50 = true;
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bool _showSma200 = true;
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bool _showEma = true;
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bool _showPatterns = true;
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bool _showSignals = true;
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bool _showSupertrend = true;
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// Set of disabled pattern indices for individual toggling
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final Set<int> _disabledPatternIndices = {};
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@override
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void initState() {
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super.initState();
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}
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@override
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void didUpdateWidget(covariant TechnicalTab oldWidget) {
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super.didUpdateWidget(oldWidget);
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}
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@override
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Widget build(BuildContext context) {
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return BlocBuilder<AssetTechnicalBloc, AssetTechnicalState>(
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@@ -73,12 +49,14 @@ class _TechnicalTabState extends State<TechnicalTab> {
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Icon(Icons.show_chart, color: AppTheme.accentRed, size: 48),
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const SizedBox(height: 12),
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Text(
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'Fehler beim Laden der Technischen Analyse: ${state.message}',
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style: const TextStyle(color: Colors.white70)),
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'Fehler beim Laden der Technischen Analyse: ${state.message}',
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style: const TextStyle(color: Colors.white70),
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),
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const SizedBox(height: 16),
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ElevatedButton.icon(
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onPressed: () => context.read<AssetTechnicalBloc>().add(
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LoadAssetTechnical(widget.isin, ticker: widget.symbol, forceRefresh: true)),
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LoadAssetTechnical(isin, ticker: symbol, forceRefresh: true),
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),
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icon: const Icon(Icons.refresh),
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label: const Text('Erneut versuchen'),
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),
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@@ -88,221 +66,91 @@ class _TechnicalTabState extends State<TechnicalTab> {
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);
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}
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if (state is AssetTechnicalLoaded) {
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final data = state.data;
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List<CandleModel> candles = [];
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List<ChartPatternModel> patterns = [];
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||||
List<StrategySignalModel> signals = [];
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List<IndicatorModel> indicators = [];
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if (state is AssetTechnicalLoaded && state.data != null) {
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final data = state.data!;
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final candles = data.candles;
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final patterns = data.patterns;
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final signals = data.signals;
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final indicators = data.indicators;
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||||
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if (data != null) {
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candles = data.candles
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||||
.map((c) => CandleModel(
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time: c.timestamp,
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open: c.open,
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high: c.high,
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||||
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),
|
||||
|
||||
@@ -1,124 +1,25 @@
|
||||
import 'dart:math';
|
||||
import 'package:flutter/gestures.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import '../../../../core/theme/app_theme.dart';
|
||||
import '../../utils/pattern_explanations.dart';
|
||||
import '../../models/technical_analysis_model.dart';
|
||||
import 'candlestick_painter.dart';
|
||||
|
||||
class CandleModel {
|
||||
final DateTime time;
|
||||
final double open;
|
||||
final double high;
|
||||
final double low;
|
||||
final double close;
|
||||
final double volume;
|
||||
|
||||
CandleModel({
|
||||
required this.time,
|
||||
required this.open,
|
||||
required this.high,
|
||||
required this.low,
|
||||
required this.close,
|
||||
required this.volume,
|
||||
});
|
||||
|
||||
factory CandleModel.fromJson(Map<String, dynamic> json) {
|
||||
return CandleModel(
|
||||
time: DateTime.tryParse(json['timestamp'] ?? json['time'] ?? '') ?? DateTime.now(),
|
||||
open: (json['open'] ?? 0).toDouble(),
|
||||
high: (json['high'] ?? 0).toDouble(),
|
||||
low: (json['low'] ?? 0).toDouble(),
|
||||
close: (json['close'] ?? 0).toDouble(),
|
||||
volume: (json['volume'] ?? 0).toDouble(),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class IndicatorModel {
|
||||
final DateTime timestamp;
|
||||
final double? ema20;
|
||||
final double? sma50;
|
||||
final double? sma200;
|
||||
final double? supertrendUpper;
|
||||
final double? supertrendLower;
|
||||
final String? supertrendDirection;
|
||||
|
||||
IndicatorModel({
|
||||
required this.timestamp,
|
||||
this.ema20,
|
||||
this.sma50,
|
||||
this.sma200,
|
||||
this.supertrendUpper,
|
||||
this.supertrendLower,
|
||||
this.supertrendDirection,
|
||||
});
|
||||
|
||||
factory IndicatorModel.fromJson(Map<String, dynamic> json) {
|
||||
return IndicatorModel(
|
||||
timestamp: DateTime.tryParse(json['timestamp'] ?? '') ?? DateTime.now(),
|
||||
ema20: json['ema20'] != null ? (json['ema20'] as num).toDouble() : null,
|
||||
sma50: json['sma50'] != null ? (json['sma50'] as num).toDouble() : null,
|
||||
sma200: json['sma200'] != null ? (json['sma200'] as num).toDouble() : null,
|
||||
supertrendUpper: json['supertrendUpper'] != null ? (json['supertrendUpper'] as num).toDouble() : null,
|
||||
supertrendLower: json['supertrendLower'] != null ? (json['supertrendLower'] as num).toDouble() : null,
|
||||
supertrendDirection: json['supertrendDirection']?.toString(),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class PatternPoint {
|
||||
final DateTime time;
|
||||
final double price;
|
||||
PatternPoint(this.time, this.price);
|
||||
factory PatternPoint.fromJson(Map<String, dynamic> json) => PatternPoint(DateTime.tryParse(json['time'] ?? '') ?? DateTime.now(), (json['price'] as num).toDouble());
|
||||
}
|
||||
|
||||
class ChartPatternModel {
|
||||
final String type;
|
||||
final List<PatternPoint> upperLine;
|
||||
final List<PatternPoint> lowerLine;
|
||||
|
||||
ChartPatternModel({required this.type, required this.upperLine, required this.lowerLine});
|
||||
|
||||
factory ChartPatternModel.fromJson(Map<String, dynamic> json) {
|
||||
return ChartPatternModel(
|
||||
type: json['type'] ?? '',
|
||||
upperLine: (json['upperLine'] as List<dynamic>? ?? []).map((e) => PatternPoint.fromJson(e)).toList(),
|
||||
lowerLine: (json['lowerLine'] as List<dynamic>? ?? []).map((e) => PatternPoint.fromJson(e)).toList(),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class StrategySignalModel {
|
||||
final String type;
|
||||
final DateTime timestamp;
|
||||
final String direction;
|
||||
final double price;
|
||||
final String description;
|
||||
|
||||
StrategySignalModel({required this.type, required this.timestamp, required this.direction, required this.price, required this.description});
|
||||
|
||||
factory StrategySignalModel.fromJson(Map<String, dynamic> json) {
|
||||
return StrategySignalModel(
|
||||
type: json['type'] ?? '',
|
||||
timestamp: DateTime.tryParse(json['timestamp'] ?? '') ?? DateTime.now(),
|
||||
direction: json['direction'] ?? '',
|
||||
price: (json['price'] as num).toDouble(),
|
||||
description: json['description'] ?? '',
|
||||
);
|
||||
}
|
||||
}
|
||||
export '../../models/technical_analysis_model.dart' show CandleModel, IndicatorModel, ChartPatternModel, PatternPoint, StrategySignalModel;
|
||||
|
||||
class CandlestickChart extends StatefulWidget {
|
||||
final List<CandleModel> candles;
|
||||
final List<ChartPatternModel> patterns;
|
||||
final List<StrategySignalModel> signals;
|
||||
final List<IndicatorModel> indicators;
|
||||
final bool showPatterns;
|
||||
final bool showSma50;
|
||||
final bool showSma200;
|
||||
final bool showEma;
|
||||
final bool showPatterns;
|
||||
final bool showSignals;
|
||||
final bool showSupertrend;
|
||||
final double height;
|
||||
final bool isFullscreen;
|
||||
final VoidCallback? onToggleFullscreen;
|
||||
|
||||
const CandlestickChart({
|
||||
super.key,
|
||||
@@ -126,12 +27,15 @@ class CandlestickChart extends StatefulWidget {
|
||||
this.patterns = const [],
|
||||
this.signals = const [],
|
||||
this.indicators = const [],
|
||||
this.showPatterns = true,
|
||||
this.showSma50 = true,
|
||||
this.showSma200 = true,
|
||||
this.showEma = true,
|
||||
this.showPatterns = true,
|
||||
this.showSignals = true,
|
||||
this.showSupertrend = true,
|
||||
this.height = 420,
|
||||
this.isFullscreen = false,
|
||||
this.onToggleFullscreen,
|
||||
});
|
||||
|
||||
@override
|
||||
@@ -141,81 +45,142 @@ class CandlestickChart extends StatefulWidget {
|
||||
class _CandlestickChartState extends State<CandlestickChart> {
|
||||
double _scale = 1.0;
|
||||
double _panOffset = 0.0;
|
||||
|
||||
double _baseScale = 1.0;
|
||||
double _basePanOffset = 0.0;
|
||||
Offset _startFocalPoint = Offset.zero;
|
||||
bool _isDragging = false;
|
||||
Offset? _tapPosition;
|
||||
CandleModel? _selectedCandle;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
if (widget.candles.isEmpty) {
|
||||
return const Center(child: Text('No chart data'));
|
||||
}
|
||||
void initState() {
|
||||
super.initState();
|
||||
WidgetsBinding.instance.addPostFrameCallback((_) {
|
||||
_fitLatestCandles();
|
||||
});
|
||||
}
|
||||
|
||||
@override
|
||||
void didUpdateWidget(covariant CandlestickChart oldWidget) {
|
||||
super.didUpdateWidget(oldWidget);
|
||||
if (oldWidget.candles.length != widget.candles.length) {
|
||||
WidgetsBinding.instance.addPostFrameCallback((_) {
|
||||
_fitLatestCandles();
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
void _fitLatestCandles() {
|
||||
if (widget.candles.isEmpty || !mounted) return;
|
||||
final renderBox = context.findRenderObject() as RenderBox?;
|
||||
final width = (renderBox?.size.width ?? 600) - 60;
|
||||
final double candleWidth = 10.0 * _scale;
|
||||
final double totalCandleSpace = candleWidth + (5.0 * _scale);
|
||||
final double futureSpace = totalCandleSpace * 10;
|
||||
final double totalWidth = (widget.candles.length * totalCandleSpace) + futureSpace;
|
||||
|
||||
setState(() {
|
||||
if (totalWidth > width) {
|
||||
_panOffset = width - totalWidth;
|
||||
} else {
|
||||
_panOffset = 0.0;
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
void _applyZoom(double factor, [double? focalX]) {
|
||||
if (widget.candles.isEmpty || !mounted) return;
|
||||
final renderBox = context.findRenderObject() as RenderBox?;
|
||||
final chartWidth = (renderBox?.size.width ?? 600) - 60;
|
||||
final fx = focalX ?? (chartWidth / 2);
|
||||
|
||||
setState(() {
|
||||
final oldScale = _scale;
|
||||
_scale = (_scale * factor).clamp(0.1, 6.0);
|
||||
_panOffset = fx - ((fx - _panOffset) * (_scale / oldScale));
|
||||
_clampPanOffset(chartWidth);
|
||||
});
|
||||
}
|
||||
|
||||
void _clampPanOffset(double chartWidth) {
|
||||
if (widget.candles.isEmpty) return;
|
||||
final double totalCandleSpace = (10.0 + 5.0) * _scale;
|
||||
final double totalWidth = (widget.candles.length * totalCandleSpace) + (totalCandleSpace * 10);
|
||||
|
||||
if (totalWidth <= chartWidth) {
|
||||
_panOffset = 0.0;
|
||||
} else {
|
||||
final double minPan = chartWidth - totalWidth - 30;
|
||||
const double maxPan = 30.0;
|
||||
_panOffset = _panOffset.clamp(minPan, maxPan);
|
||||
}
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final theme = AppTheme.activePreset;
|
||||
|
||||
return LayoutBuilder(
|
||||
builder: (context, constraints) {
|
||||
final double baseWidth = 10.0;
|
||||
final double spacing = 5.0;
|
||||
final double totalCandleSpace = (baseWidth + spacing) * _scale;
|
||||
final double totalContentWidth = (widget.candles.length + 15) * totalCandleSpace;
|
||||
|
||||
final double minOffset = constraints.maxWidth - totalContentWidth - 60.0;
|
||||
final double maxOffset = 100.0;
|
||||
|
||||
_panOffset = _panOffset.clamp(minOffset < maxOffset ? minOffset : maxOffset, maxOffset);
|
||||
|
||||
return Listener(
|
||||
return Container(
|
||||
height: widget.height,
|
||||
decoration: BoxDecoration(
|
||||
color: theme.cardSurface,
|
||||
borderRadius: BorderRadius.circular(16),
|
||||
border: Border.all(color: theme.glassBorder),
|
||||
),
|
||||
child: ClipRRect(
|
||||
borderRadius: BorderRadius.circular(16),
|
||||
child: Listener(
|
||||
onPointerSignal: (pointerSignal) {
|
||||
if (pointerSignal is PointerScrollEvent) {
|
||||
GestureBinding.instance.pointerSignalResolver.register(
|
||||
pointerSignal,
|
||||
(event) {
|
||||
if (event is PointerScrollEvent) {
|
||||
setState(() {
|
||||
final double localX = event.localPosition.dx;
|
||||
final double zoomFactor = event.scrollDelta.dy > 0 ? 0.9 : 1.1;
|
||||
final double newScale = (_scale * zoomFactor).clamp(0.2, 5.0);
|
||||
final double scaleRatio = newScale / _scale;
|
||||
|
||||
// Zoom centered on cursor
|
||||
_panOffset = localX - (localX - _panOffset) * scaleRatio;
|
||||
_scale = newScale;
|
||||
|
||||
final double updatedCandleSpace = (baseWidth + spacing) * _scale;
|
||||
final double updatedContentWidth = (widget.candles.length + 15) * updatedCandleSpace;
|
||||
final double newMinOffset = constraints.maxWidth - updatedContentWidth - 60.0;
|
||||
_panOffset = _panOffset.clamp(newMinOffset < maxOffset ? newMinOffset : maxOffset, maxOffset);
|
||||
});
|
||||
}
|
||||
},
|
||||
);
|
||||
if (pointerSignal.scrollDelta.dx != 0) {
|
||||
final renderBox = context.findRenderObject() as RenderBox?;
|
||||
final chartWidth = (renderBox?.size.width ?? 600) - 60;
|
||||
setState(() {
|
||||
_panOffset -= pointerSignal.scrollDelta.dx;
|
||||
_clampPanOffset(chartWidth);
|
||||
});
|
||||
} else if (pointerSignal.scrollDelta.dy != 0) {
|
||||
final zoomFactor = pointerSignal.scrollDelta.dy < 0 ? 1.15 : 0.85;
|
||||
_applyZoom(zoomFactor, pointerSignal.localPosition.dx);
|
||||
}
|
||||
}
|
||||
},
|
||||
child: GestureDetector(
|
||||
onScaleUpdate: (details) {
|
||||
setState(() {
|
||||
_scale = (_scale * details.scale).clamp(0.2, 5.0);
|
||||
_panOffset += details.focalPointDelta.dx;
|
||||
_panOffset = _panOffset.clamp(minOffset, maxOffset);
|
||||
if (_tapPosition != null) {
|
||||
_handleTap(Offset(_tapPosition!.dx + details.focalPointDelta.dx, _tapPosition!.dy), constraints.maxWidth);
|
||||
}
|
||||
});
|
||||
},
|
||||
onScaleEnd: (_) => setState(() {
|
||||
_tapPosition = null;
|
||||
_selectedCandle = null;
|
||||
}),
|
||||
onTapDown: (details) {
|
||||
_handleTap(details.localPosition, constraints.maxWidth);
|
||||
},
|
||||
child: Stack(
|
||||
children: [
|
||||
ClipRect(
|
||||
child: CustomPaint(
|
||||
child: MouseRegion(
|
||||
cursor: _isDragging ? SystemMouseCursors.grabbing : SystemMouseCursors.grab,
|
||||
child: GestureDetector(
|
||||
behavior: HitTestBehavior.opaque,
|
||||
onScaleStart: (details) {
|
||||
_baseScale = _scale;
|
||||
_basePanOffset = _panOffset;
|
||||
_startFocalPoint = details.focalPoint;
|
||||
setState(() => _isDragging = true);
|
||||
},
|
||||
onScaleUpdate: (details) {
|
||||
final renderBox = context.findRenderObject() as RenderBox?;
|
||||
final chartWidth = (renderBox?.size.width ?? 600) - 60;
|
||||
setState(() {
|
||||
if (details.scale != 1.0) {
|
||||
final oldScale = _scale;
|
||||
_scale = (_baseScale * details.scale).clamp(0.1, 6.0);
|
||||
final fx = details.localFocalPoint.dx;
|
||||
_panOffset = fx - ((fx - _basePanOffset) * (_scale / oldScale));
|
||||
} else {
|
||||
_panOffset = _basePanOffset + (details.focalPoint.dx - _startFocalPoint.dx);
|
||||
}
|
||||
_clampPanOffset(chartWidth);
|
||||
});
|
||||
},
|
||||
onScaleEnd: (details) {
|
||||
setState(() => _isDragging = false);
|
||||
},
|
||||
onTapDown: (details) {
|
||||
_handleTap(details.localPosition);
|
||||
},
|
||||
child: Stack(
|
||||
children: [
|
||||
CustomPaint(
|
||||
size: Size.infinite,
|
||||
painter: _CandlePainter(
|
||||
painter: CandlestickPainter(
|
||||
candles: widget.candles,
|
||||
patterns: widget.patterns,
|
||||
signals: widget.signals,
|
||||
@@ -232,74 +197,76 @@ class _CandlestickChartState extends State<CandlestickChart> {
|
||||
tapPosition: _tapPosition,
|
||||
),
|
||||
),
|
||||
),
|
||||
if (_selectedCandle != null) _buildTooltip(theme),
|
||||
// Floating Zoom & Pan Controls (Top-Left)
|
||||
Positioned(
|
||||
left: 12,
|
||||
top: 12,
|
||||
child: Container(
|
||||
padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 4),
|
||||
decoration: BoxDecoration(
|
||||
color: theme.cardSurface.withValues(alpha: 0.85),
|
||||
borderRadius: BorderRadius.circular(20),
|
||||
border: Border.all(color: theme.glassBorder),
|
||||
),
|
||||
child: Row(
|
||||
mainAxisSize: MainAxisSize.min,
|
||||
children: [
|
||||
IconButton(
|
||||
icon: const Icon(Icons.zoom_in, size: 18),
|
||||
color: theme.primaryColor,
|
||||
padding: EdgeInsets.zero,
|
||||
constraints: const BoxConstraints(minWidth: 32, minHeight: 32),
|
||||
onPressed: () => setState(() => _scale = (_scale * 1.25).clamp(0.2, 5.0)),
|
||||
tooltip: 'Zoom In',
|
||||
),
|
||||
IconButton(
|
||||
icon: const Icon(Icons.zoom_out, size: 18),
|
||||
color: theme.primaryColor,
|
||||
padding: EdgeInsets.zero,
|
||||
constraints: const BoxConstraints(minWidth: 32, minHeight: 32),
|
||||
onPressed: () => setState(() => _scale = (_scale * 0.8).clamp(0.2, 5.0)),
|
||||
tooltip: 'Zoom Out',
|
||||
),
|
||||
IconButton(
|
||||
icon: const Icon(Icons.center_focus_strong, size: 18),
|
||||
color: theme.textMuted,
|
||||
padding: EdgeInsets.zero,
|
||||
constraints: const BoxConstraints(minWidth: 32, minHeight: 32),
|
||||
onPressed: () => setState(() {
|
||||
_scale = 1.0;
|
||||
_panOffset = 0.0;
|
||||
}),
|
||||
tooltip: 'Reset Zoom & Pan',
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
if (_selectedCandle != null) _buildTooltip(theme),
|
||||
_buildZoomControls(theme),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
},
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
void _handleTap(Offset pos, double width) {
|
||||
Widget _buildZoomControls(ThemePreset theme) {
|
||||
return Positioned(
|
||||
right: 10,
|
||||
bottom: 28,
|
||||
child: Container(
|
||||
decoration: BoxDecoration(
|
||||
color: theme.cardSurface.withValues(alpha: 0.9),
|
||||
borderRadius: BorderRadius.circular(8),
|
||||
border: Border.all(color: theme.glassBorder),
|
||||
),
|
||||
padding: const EdgeInsets.symmetric(horizontal: 2, vertical: 2),
|
||||
child: Row(
|
||||
mainAxisSize: MainAxisSize.min,
|
||||
children: [
|
||||
_buildZoomButton(icon: Icons.chevron_left, tooltip: 'Nach links bewegen', onTap: () {
|
||||
final renderBox = context.findRenderObject() as RenderBox?;
|
||||
setState(() { _panOffset += 150; _clampPanOffset((renderBox?.size.width ?? 600) - 60); });
|
||||
}),
|
||||
_buildZoomButton(icon: Icons.chevron_right, tooltip: 'Nach rechts bewegen', onTap: () {
|
||||
final renderBox = context.findRenderObject() as RenderBox?;
|
||||
setState(() { _panOffset -= 150; _clampPanOffset((renderBox?.size.width ?? 600) - 60); });
|
||||
}),
|
||||
Container(width: 1, height: 16, color: theme.glassBorder),
|
||||
_buildZoomButton(icon: Icons.add, tooltip: 'Vergrößern', onTap: () => _applyZoom(1.25)),
|
||||
_buildZoomButton(icon: Icons.remove, tooltip: 'Verkleinern', onTap: () => _applyZoom(0.8)),
|
||||
_buildZoomButton(icon: Icons.fit_screen_outlined, tooltip: 'Aktuelle Kerzen einpassen', onTap: _fitLatestCandles),
|
||||
_buildZoomButton(icon: Icons.refresh, tooltip: 'Zoom 1:1 zurücksetzen', onTap: () { setState(() => _scale = 1.0); _fitLatestCandles(); }),
|
||||
if (widget.onToggleFullscreen != null) ...[
|
||||
Container(width: 1, height: 16, color: theme.glassBorder),
|
||||
_buildZoomButton(
|
||||
icon: widget.isFullscreen ? Icons.fullscreen_exit : Icons.fullscreen,
|
||||
tooltip: widget.isFullscreen ? 'Vollbild beenden' : 'Vollbildmodus (Querformat)',
|
||||
onTap: widget.onToggleFullscreen!,
|
||||
),
|
||||
],
|
||||
],
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
Widget _buildZoomButton({required IconData icon, required String tooltip, required VoidCallback onTap}) {
|
||||
return Tooltip(
|
||||
message: tooltip,
|
||||
child: InkWell(
|
||||
onTap: onTap,
|
||||
borderRadius: BorderRadius.circular(6),
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(6),
|
||||
child: Icon(icon, size: 16, color: Colors.white70),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
void _handleTap(Offset pos) {
|
||||
if (widget.candles.isEmpty) return;
|
||||
|
||||
// Right side is for axis, don't tap there
|
||||
if (pos.dx > width - 60) return;
|
||||
|
||||
final double baseWidth = 10.0;
|
||||
final double spacing = 5.0;
|
||||
final double candleWidth = baseWidth * _scale;
|
||||
final double totalCandleSpace = candleWidth + (spacing * _scale);
|
||||
|
||||
// dx = (i * totalCandleSpace) + _panOffset;
|
||||
// (dx - _panOffset) / totalCandleSpace = i;
|
||||
final double candleWidth = 10.0 * _scale;
|
||||
final double totalCandleSpace = candleWidth + (5.0 * _scale);
|
||||
final int index = ((pos.dx - _panOffset) / totalCandleSpace).round();
|
||||
|
||||
if (index >= 0 && index < widget.candles.length) {
|
||||
@@ -311,8 +278,8 @@ class _CandlestickChartState extends State<CandlestickChart> {
|
||||
}
|
||||
|
||||
Widget _buildTooltip(ThemePreset theme) {
|
||||
final candle = _selectedCandle!;
|
||||
final dateStr = "${candle.time.year}-${candle.time.month.toString().padLeft(2,'0')}-${candle.time.day.toString().padLeft(2,'0')}";
|
||||
final c = _selectedCandle!;
|
||||
final dStr = "${c.timestamp.year}-${c.timestamp.month.toString().padLeft(2, '0')}-${c.timestamp.day.toString().padLeft(2, '0')}";
|
||||
|
||||
return Positioned(
|
||||
left: 10,
|
||||
@@ -328,492 +295,12 @@ class _CandlestickChartState extends State<CandlestickChart> {
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
mainAxisSize: MainAxisSize.min,
|
||||
children: [
|
||||
Text(dateStr, style: TextStyle(color: theme.textMuted, fontSize: 12)),
|
||||
Text('O: ${candle.open.toStringAsFixed(2)}', style: TextStyle(color: theme.textPrimary, fontSize: 12)),
|
||||
Text('H: ${candle.high.toStringAsFixed(2)}', style: TextStyle(color: theme.textPrimary, fontSize: 12)),
|
||||
Text('L: ${candle.low.toStringAsFixed(2)}', style: TextStyle(color: theme.textPrimary, fontSize: 12)),
|
||||
Text('C: ${candle.close.toStringAsFixed(2)}', style: TextStyle(color: theme.textPrimary, fontSize: 12)),
|
||||
Text('Vol: ${candle.volume.toStringAsFixed(0)}', style: TextStyle(color: theme.textPrimary, fontSize: 12)),
|
||||
Text(dStr, style: TextStyle(color: theme.textMuted, fontSize: 12)),
|
||||
Text('O: ${c.open.toStringAsFixed(2)} | H: ${c.high.toStringAsFixed(2)} | L: ${c.low.toStringAsFixed(2)} | C: ${c.close.toStringAsFixed(2)}', style: TextStyle(color: theme.textPrimary, fontSize: 12)),
|
||||
Text('Vol: ${c.volume.toStringAsFixed(0)}', style: TextStyle(color: theme.textSecondary, fontSize: 11)),
|
||||
],
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class _CandlePainter extends CustomPainter {
|
||||
final List<CandleModel> candles;
|
||||
final List<ChartPatternModel> patterns;
|
||||
final List<StrategySignalModel> signals;
|
||||
final List<IndicatorModel> indicators;
|
||||
final double scale;
|
||||
final double panOffset;
|
||||
final ThemePreset theme;
|
||||
final bool showPatterns;
|
||||
final bool showSma50;
|
||||
final bool showSma200;
|
||||
final bool showEma;
|
||||
final bool showSignals;
|
||||
final bool showSupertrend;
|
||||
final Offset? tapPosition;
|
||||
|
||||
final double rightPadding = 60.0; // Space for price axis
|
||||
final double bottomPadding = 20.0; // Space for X-axis labels
|
||||
|
||||
_CandlePainter({
|
||||
required this.candles,
|
||||
required this.patterns,
|
||||
required this.signals,
|
||||
required this.indicators,
|
||||
required this.scale,
|
||||
required this.panOffset,
|
||||
required this.theme,
|
||||
required this.showPatterns,
|
||||
required this.showSma50,
|
||||
required this.showSma200,
|
||||
required this.showEma,
|
||||
required this.showSignals,
|
||||
required this.showSupertrend,
|
||||
this.tapPosition,
|
||||
});
|
||||
|
||||
@override
|
||||
void paint(Canvas canvas, Size size) {
|
||||
if (candles.isEmpty) return;
|
||||
|
||||
final double chartWidth = size.width - rightPadding;
|
||||
final double baseWidth = 10.0;
|
||||
final double spacing = 5.0;
|
||||
final double candleWidth = baseWidth * scale;
|
||||
final double totalCandleSpace = candleWidth + (spacing * scale);
|
||||
|
||||
double maxPrice = 0;
|
||||
double minPrice = double.infinity;
|
||||
|
||||
// Find min/max in view
|
||||
int firstVisibleIndex = -1;
|
||||
for (int i = 0; i < candles.length; i++) {
|
||||
final dx = (i * totalCandleSpace) + panOffset;
|
||||
if (dx + candleWidth > 0 && dx < chartWidth) {
|
||||
if (firstVisibleIndex == -1) firstVisibleIndex = i;
|
||||
final c = candles[i];
|
||||
if (c.high > maxPrice) maxPrice = c.high;
|
||||
if (c.low < minPrice) minPrice = c.low;
|
||||
}
|
||||
}
|
||||
|
||||
if (minPrice == double.infinity || maxPrice == 0) return;
|
||||
|
||||
// Add 10% padding to top/bottom
|
||||
final range = maxPrice - minPrice;
|
||||
maxPrice += range * 0.1;
|
||||
minPrice -= range * 0.1;
|
||||
final paddedRange = maxPrice - minPrice;
|
||||
if (paddedRange <= 0) return;
|
||||
|
||||
final double chartHeight = size.height - bottomPadding;
|
||||
final double volumeHeight = chartHeight * 0.15; // Bottom 15% for volume
|
||||
final double candleAreaHeight = chartHeight - volumeHeight;
|
||||
|
||||
double maxVolume = 0;
|
||||
for (int i = 0; i < candles.length; i++) {
|
||||
if (candles[i].volume > maxVolume) maxVolume = candles[i].volume;
|
||||
}
|
||||
if (maxVolume == 0) maxVolume = 1;
|
||||
|
||||
_drawGridAndAxis(canvas, size, chartWidth, candleAreaHeight, minPrice, maxPrice, paddedRange);
|
||||
|
||||
final paintBullish = Paint()..color = theme.primaryColor..style = PaintingStyle.fill;
|
||||
final paintBearish = Paint()..color = theme.accentRed..style = PaintingStyle.fill;
|
||||
final paintWickBullish = Paint()..color = theme.primaryColor..strokeWidth = 1.5;
|
||||
final paintWickBearish = Paint()..color = theme.accentRed..strokeWidth = 1.5;
|
||||
|
||||
final ema20Path = Path();
|
||||
final sma50Path = Path();
|
||||
final sma200Path = Path();
|
||||
final supertrendPath = Path();
|
||||
bool firstEma20 = true;
|
||||
bool firstSma50 = true;
|
||||
bool firstSma200 = true;
|
||||
bool firstSupertrend = true;
|
||||
|
||||
// Map DateTime to X for patterns and signals
|
||||
double getXForTime(DateTime t) {
|
||||
int bestIndex = 0;
|
||||
int minDiff = 999999999;
|
||||
for (int i = 0; i < candles.length; i++) {
|
||||
final diff = candles[i].time.difference(t).inSeconds.abs();
|
||||
if (diff < minDiff) {
|
||||
minDiff = diff;
|
||||
bestIndex = i;
|
||||
}
|
||||
}
|
||||
return (bestIndex * totalCandleSpace) + panOffset + candleWidth / 2;
|
||||
}
|
||||
|
||||
double getYForPrice(double price) {
|
||||
return candleAreaHeight - ((price - minPrice) / paddedRange) * candleAreaHeight;
|
||||
}
|
||||
|
||||
// Clip to chart area so we don't draw over the axis
|
||||
canvas.save();
|
||||
canvas.clipRect(Rect.fromLTWH(0, 0, chartWidth, chartHeight));
|
||||
|
||||
for (int i = 0; i < candles.length; i++) {
|
||||
final candle = candles[i];
|
||||
final isBullish = candle.close >= candle.open;
|
||||
|
||||
final dx = (i * totalCandleSpace) + panOffset;
|
||||
if (dx < -candleWidth || dx > chartWidth) continue; // Culling
|
||||
|
||||
final yHigh = getYForPrice(candle.high);
|
||||
final yLow = getYForPrice(candle.low);
|
||||
final yOpen = getYForPrice(candle.open);
|
||||
final yClose = getYForPrice(candle.close);
|
||||
|
||||
// Draw Wick
|
||||
canvas.drawLine(
|
||||
Offset(dx + candleWidth / 2, yHigh),
|
||||
Offset(dx + candleWidth / 2, yLow),
|
||||
isBullish ? paintWickBullish : paintWickBearish,
|
||||
);
|
||||
|
||||
// Draw Body
|
||||
final top = min(yOpen, yClose);
|
||||
final bottom = max(yOpen, yClose);
|
||||
final bodyHeight = max(bottom - top, 1.0); // minimum 1px height
|
||||
|
||||
canvas.drawRect(
|
||||
Rect.fromLTWH(dx, top, candleWidth, bodyHeight),
|
||||
isBullish ? paintBullish : paintBearish,
|
||||
);
|
||||
|
||||
// Draw Volume
|
||||
final vHeight = (candle.volume / maxVolume) * volumeHeight;
|
||||
final vTop = chartHeight - vHeight;
|
||||
canvas.drawRect(
|
||||
Rect.fromLTWH(dx, vTop, candleWidth, vHeight),
|
||||
Paint()..color = (isBullish ? theme.primaryColor : theme.accentRed).withValues(alpha: 0.3)..style = PaintingStyle.fill,
|
||||
);
|
||||
|
||||
// Indicators mapping by time
|
||||
if (indicators.isNotEmpty) {
|
||||
final cx = dx + candleWidth / 2;
|
||||
IndicatorModel? match;
|
||||
for (var ind in indicators) {
|
||||
if (ind.timestamp.isAtSameMomentAs(candle.time) || ind.timestamp.difference(candle.time).inHours.abs() < 12) {
|
||||
match = ind;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (match != null) {
|
||||
if (showEma && match.ema20 != null) {
|
||||
final y = getYForPrice(match.ema20!);
|
||||
if (firstEma20) { ema20Path.moveTo(cx, y); firstEma20 = false; }
|
||||
else { ema20Path.lineTo(cx, y); }
|
||||
}
|
||||
if (showSma50 && match.sma50 != null) {
|
||||
final y = getYForPrice(match.sma50!);
|
||||
if (firstSma50) { sma50Path.moveTo(cx, y); firstSma50 = false; }
|
||||
else { sma50Path.lineTo(cx, y); }
|
||||
}
|
||||
if (showSma200 && match.sma200 != null) {
|
||||
final y = getYForPrice(match.sma200!);
|
||||
if (firstSma200) { sma200Path.moveTo(cx, y); firstSma200 = false; }
|
||||
else { sma200Path.lineTo(cx, y); }
|
||||
}
|
||||
|
||||
if (showSupertrend) {
|
||||
final stVal = match.supertrendDirection == 'BULLISH' ? match.supertrendLower : match.supertrendUpper;
|
||||
if (stVal != null) {
|
||||
final y = getYForPrice(stVal);
|
||||
if (firstSupertrend) { supertrendPath.moveTo(cx, y); firstSupertrend = false; }
|
||||
else { supertrendPath.lineTo(cx, y); }
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (showEma && !firstEma20) {
|
||||
canvas.drawPath(ema20Path, Paint()..color = Colors.blueAccent..style = PaintingStyle.stroke..strokeWidth = 1.5);
|
||||
}
|
||||
if (showSma50 && !firstSma50) {
|
||||
canvas.drawPath(sma50Path, Paint()..color = Colors.orangeAccent..style = PaintingStyle.stroke..strokeWidth = 1.5);
|
||||
}
|
||||
if (showSma200 && !firstSma200) {
|
||||
canvas.drawPath(sma200Path, Paint()..color = Colors.redAccent..style = PaintingStyle.stroke..strokeWidth = 2.0);
|
||||
}
|
||||
if (showSupertrend && !firstSupertrend) {
|
||||
canvas.drawPath(supertrendPath, Paint()..color = AppTheme.primaryEmerald..style = PaintingStyle.stroke..strokeWidth = 2.0);
|
||||
}
|
||||
|
||||
if (showPatterns) {
|
||||
_drawPatterns(canvas, getXForTime, getYForPrice);
|
||||
_drawFutureProjectionZone(canvas, size, chartWidth, candleAreaHeight, getXForTime, getYForPrice);
|
||||
}
|
||||
|
||||
if (showSignals) {
|
||||
_drawSignals(canvas, getXForTime, getYForPrice);
|
||||
}
|
||||
|
||||
if (tapPosition != null && tapPosition!.dx < chartWidth) {
|
||||
_drawCrosshair(canvas, size, chartWidth, chartHeight);
|
||||
}
|
||||
|
||||
canvas.restore(); // Restore clip
|
||||
}
|
||||
|
||||
void _drawFutureProjectionZone(Canvas canvas, Size size, double chartWidth, double candleAreaHeight, double Function(DateTime) getX, double Function(double) getY) {
|
||||
if (candles.isEmpty) return;
|
||||
|
||||
final lastCandle = candles.last;
|
||||
final double lastX = getX(lastCandle.time);
|
||||
|
||||
if (lastX < chartWidth) {
|
||||
// 1. Shaded background for Future Zone (No divider line)
|
||||
final futureRect = Rect.fromLTRB(lastX, 0, chartWidth, candleAreaHeight);
|
||||
final futureBgPaint = Paint()
|
||||
..color = const Color(0xFF001F3F).withValues(alpha: 0.25)
|
||||
..style = PaintingStyle.fill;
|
||||
canvas.drawRect(futureRect, futureBgPaint);
|
||||
|
||||
// Label for Future Zone
|
||||
final textPainter = TextPainter(textDirection: TextDirection.ltr);
|
||||
textPainter.text = TextSpan(
|
||||
text: 'PROGNOSE (MUSTER-SCHÄTZUNG)',
|
||||
style: TextStyle(color: theme.primaryColor, fontSize: 9, fontWeight: FontWeight.bold, letterSpacing: 0.8),
|
||||
);
|
||||
textPainter.layout();
|
||||
textPainter.paint(canvas, Offset(lastX + 8, 8));
|
||||
|
||||
// 2. Projected Ghost Candles & Target Line for active patterns
|
||||
for (var pattern in patterns) {
|
||||
if (pattern.lowerLine.isNotEmpty || pattern.upperLine.isNotEmpty) {
|
||||
final targetPrice = pattern.lowerLine.isNotEmpty ? pattern.lowerLine.last.price : (pattern.upperLine.isNotEmpty ? pattern.upperLine.last.price : 0);
|
||||
if (targetPrice > 0) {
|
||||
final targetY = getY(targetPrice.toDouble());
|
||||
final int numSteps = 10;
|
||||
final double stepWidth = (chartWidth - lastX - 30) / numSteps;
|
||||
if (stepWidth <= 0) continue;
|
||||
|
||||
final isBullish = targetPrice >= lastCandle.close;
|
||||
final projColor = isBullish ? Colors.greenAccent : Colors.redAccent;
|
||||
|
||||
double currX = lastX;
|
||||
double currPrice = lastCandle.close;
|
||||
|
||||
final double priceDeltaPerStep = (targetPrice - lastCandle.close) / numSteps;
|
||||
|
||||
for (int k = 1; k <= numSteps; k++) {
|
||||
final nextX = lastX + k * stepWidth;
|
||||
final waveNoise = sin(k * 0.8) * (priceDeltaPerStep.abs() * 0.3);
|
||||
final nextPrice = lastCandle.close + (priceDeltaPerStep * k) + waveNoise;
|
||||
|
||||
final highPrice = max(currPrice, nextPrice) + priceDeltaPerStep.abs() * 0.2;
|
||||
final lowPrice = min(currPrice, nextPrice) - priceDeltaPerStep.abs() * 0.2;
|
||||
|
||||
final yOpen = getY(currPrice);
|
||||
final yClose = getY(nextPrice);
|
||||
final yHigh = getY(highPrice);
|
||||
final yLow = getY(lowPrice);
|
||||
|
||||
final cWidth = max(stepWidth * 0.6, 3.0);
|
||||
final cLeft = nextX - cWidth / 2;
|
||||
|
||||
final isStepBullish = nextPrice >= currPrice;
|
||||
final stepColor = isStepBullish ? Colors.greenAccent : Colors.redAccent;
|
||||
|
||||
// Draw Ghost Candle Wick
|
||||
canvas.drawLine(
|
||||
Offset(nextX, yHigh),
|
||||
Offset(nextX, yLow),
|
||||
Paint()..color = stepColor.withValues(alpha: 0.4)..strokeWidth = 1.0,
|
||||
);
|
||||
|
||||
// Draw Ghost Candle Body
|
||||
final top = min(yOpen, yClose);
|
||||
final bottom = max(yOpen, yClose);
|
||||
canvas.drawRect(
|
||||
Rect.fromLTWH(cLeft, top, cWidth, max(bottom - top, 1.0)),
|
||||
Paint()..color = stepColor.withValues(alpha: 0.35)..style = PaintingStyle.fill,
|
||||
);
|
||||
|
||||
currX = nextX;
|
||||
currPrice = nextPrice;
|
||||
}
|
||||
|
||||
// Target Price Badge at final step
|
||||
final targetX = currX;
|
||||
final targetBadgePainter = TextPainter(
|
||||
text: TextSpan(
|
||||
text: ' ZIEL: ${targetPrice.toStringAsFixed(2)} € ',
|
||||
style: const TextStyle(color: Colors.white, fontSize: 10, fontWeight: FontWeight.bold),
|
||||
),
|
||||
textDirection: TextDirection.ltr,
|
||||
);
|
||||
targetBadgePainter.layout();
|
||||
|
||||
final badgeRect = RRect.fromLTRBR(
|
||||
targetX - targetBadgePainter.width / 2,
|
||||
targetY - targetBadgePainter.height / 2 - 2,
|
||||
targetX + targetBadgePainter.width / 2,
|
||||
targetY + targetBadgePainter.height / 2 + 2,
|
||||
const Radius.circular(6),
|
||||
);
|
||||
canvas.drawRRect(badgeRect, Paint()..color = projColor.withValues(alpha: 0.9));
|
||||
targetBadgePainter.paint(canvas, Offset(targetX - targetBadgePainter.width / 2, targetY - targetBadgePainter.height / 2));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void _drawGridAndAxis(Canvas canvas, Size size, double chartWidth, double candleAreaHeight, double minPrice, double maxPrice, double range) {
|
||||
final gridPaint = Paint()
|
||||
..color = theme.glassBorder
|
||||
..strokeWidth = 1;
|
||||
|
||||
final textPainter = TextPainter(textDirection: TextDirection.ltr);
|
||||
|
||||
// Y Axis
|
||||
final int gridLines = 5;
|
||||
for (int i = 0; i <= gridLines; i++) {
|
||||
final y = candleAreaHeight - (i / gridLines) * candleAreaHeight;
|
||||
final price = minPrice + (i / gridLines) * range;
|
||||
|
||||
canvas.drawLine(Offset(0, y), Offset(chartWidth, y), gridPaint);
|
||||
|
||||
textPainter.text = TextSpan(
|
||||
text: price.toStringAsFixed(2),
|
||||
style: TextStyle(color: theme.textMuted, fontSize: 11),
|
||||
);
|
||||
textPainter.layout();
|
||||
textPainter.paint(canvas, Offset(chartWidth + 5, y - 6));
|
||||
}
|
||||
|
||||
// X Axis
|
||||
if (candles.isEmpty) return;
|
||||
|
||||
final double baseWidth = 10.0;
|
||||
final double spacing = 5.0;
|
||||
final double candleWidth = baseWidth * scale;
|
||||
final double totalCandleSpace = candleWidth + (spacing * scale);
|
||||
|
||||
final int xSteps = (chartWidth / 80).floor(); // label every 80px
|
||||
if (xSteps <= 0) return;
|
||||
|
||||
for (int i = 1; i < xSteps; i++) {
|
||||
double x = i * (chartWidth / xSteps);
|
||||
int candleIndex = ((x - panOffset) / totalCandleSpace).round();
|
||||
if (candleIndex >= 0 && candleIndex < candles.length) {
|
||||
final t = candles[candleIndex].time;
|
||||
textPainter.text = TextSpan(
|
||||
text: "${t.month.toString().padLeft(2,'0')}-${t.day.toString().padLeft(2,'0')}",
|
||||
style: TextStyle(color: theme.textMuted, fontSize: 10),
|
||||
);
|
||||
textPainter.layout();
|
||||
textPainter.paint(canvas, Offset(x - textPainter.width / 2, size.height - bottomPadding + 4));
|
||||
canvas.drawLine(Offset(x, 0), Offset(x, size.height - bottomPadding), gridPaint);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void _drawPatterns(Canvas canvas, double Function(DateTime) getX, double Function(double) getY) {
|
||||
for (var pattern in patterns) {
|
||||
final color = PatternExplanations.getColorForPattern(pattern.type);
|
||||
final paint = Paint()
|
||||
..color = color
|
||||
..style = PaintingStyle.stroke
|
||||
..strokeWidth = 2.0;
|
||||
|
||||
void drawLine(List<PatternPoint> points) {
|
||||
if (points.length < 2) return;
|
||||
final path = Path();
|
||||
path.moveTo(getX(points[0].time), getY(points[0].price));
|
||||
for (int i = 1; i < points.length; i++) {
|
||||
path.lineTo(getX(points[i].time), getY(points[i].price));
|
||||
}
|
||||
canvas.drawPath(path, paint);
|
||||
}
|
||||
|
||||
drawLine(pattern.upperLine);
|
||||
drawLine(pattern.lowerLine);
|
||||
}
|
||||
}
|
||||
|
||||
void _drawSignals(Canvas canvas, double Function(DateTime) getX, double Function(double) getY) {
|
||||
for (var signal in signals) {
|
||||
final x = getX(signal.timestamp);
|
||||
final y = getY(signal.price);
|
||||
|
||||
final isBuy = signal.direction.toUpperCase() == 'BUY';
|
||||
final isSell = signal.direction.toUpperCase() == 'SELL';
|
||||
|
||||
if (!isBuy && !isSell) continue;
|
||||
|
||||
final color = isBuy ? theme.primaryColor : theme.accentRed;
|
||||
final label = isBuy ? '▲ BUY' : '▼ SELL';
|
||||
|
||||
// Draw Pill Badge for Signal
|
||||
final textPainter = TextPainter(
|
||||
text: TextSpan(
|
||||
text: label,
|
||||
style: const TextStyle(color: Colors.white, fontSize: 10, fontWeight: FontWeight.bold),
|
||||
),
|
||||
textDirection: TextDirection.ltr,
|
||||
);
|
||||
textPainter.layout();
|
||||
|
||||
final badgeWidth = textPainter.width + 12;
|
||||
final badgeHeight = textPainter.height + 6;
|
||||
final badgeY = isBuy ? y + 12 : y - badgeHeight - 12;
|
||||
final badgeRect = RRect.fromLTRBR(
|
||||
x - badgeWidth / 2,
|
||||
badgeY,
|
||||
x + badgeWidth / 2,
|
||||
badgeY + badgeHeight,
|
||||
const Radius.circular(10),
|
||||
);
|
||||
|
||||
// Pill Background
|
||||
canvas.drawRRect(badgeRect, Paint()..color = color.withValues(alpha: 0.95));
|
||||
|
||||
// Pointer Line to price point
|
||||
canvas.drawLine(
|
||||
Offset(x, y),
|
||||
Offset(x, isBuy ? badgeY : badgeY + badgeHeight),
|
||||
Paint()..color = color..strokeWidth = 1.5,
|
||||
);
|
||||
|
||||
// Text paint
|
||||
textPainter.paint(canvas, Offset(x - textPainter.width / 2, badgeY + 3));
|
||||
}
|
||||
}
|
||||
|
||||
void _drawCrosshair(Canvas canvas, Size size, double chartWidth, double chartHeight) {
|
||||
final paint = Paint()
|
||||
..color = theme.textMuted.withValues(alpha: 0.5)
|
||||
..strokeWidth = 1
|
||||
..style = PaintingStyle.stroke;
|
||||
|
||||
// Vertical
|
||||
canvas.drawLine(Offset(tapPosition!.dx, 0), Offset(tapPosition!.dx, chartHeight), paint);
|
||||
// Horizontal
|
||||
if (tapPosition!.dy <= chartHeight) {
|
||||
canvas.drawLine(Offset(0, tapPosition!.dy), Offset(chartWidth, tapPosition!.dy), paint);
|
||||
}
|
||||
}
|
||||
|
||||
@override
|
||||
bool shouldRepaint(covariant _CandlePainter oldDelegate) {
|
||||
return oldDelegate.scale != scale ||
|
||||
oldDelegate.panOffset != panOffset ||
|
||||
oldDelegate.candles != candles ||
|
||||
oldDelegate.patterns != patterns ||
|
||||
oldDelegate.signals != signals ||
|
||||
oldDelegate.indicators != indicators ||
|
||||
oldDelegate.tapPosition != tapPosition;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -0,0 +1,292 @@
|
||||
import 'dart:math';
|
||||
import 'package:flutter/material.dart';
|
||||
import '../../../../core/theme/app_theme.dart';
|
||||
import '../../models/technical_analysis_model.dart';
|
||||
import 'chart_overlay_renderer.dart';
|
||||
|
||||
class CandlestickPainter extends CustomPainter {
|
||||
final List<CandleModel> candles;
|
||||
final List<ChartPatternModel> patterns;
|
||||
final List<StrategySignalModel> signals;
|
||||
final List<IndicatorModel> indicators;
|
||||
final double scale;
|
||||
final double panOffset;
|
||||
final ThemePreset theme;
|
||||
final bool showPatterns;
|
||||
final bool showSma50;
|
||||
final bool showSma200;
|
||||
final bool showEma;
|
||||
final bool showSignals;
|
||||
final bool showSupertrend;
|
||||
final Offset? tapPosition;
|
||||
|
||||
final double rightPadding = 60.0;
|
||||
final double bottomPadding = 20.0;
|
||||
|
||||
CandlestickPainter({
|
||||
required this.candles,
|
||||
required this.patterns,
|
||||
required this.signals,
|
||||
required this.indicators,
|
||||
required this.scale,
|
||||
required this.panOffset,
|
||||
required this.theme,
|
||||
required this.showPatterns,
|
||||
required this.showSma50,
|
||||
required this.showSma200,
|
||||
required this.showEma,
|
||||
required this.showSignals,
|
||||
required this.showSupertrend,
|
||||
this.tapPosition,
|
||||
});
|
||||
|
||||
@override
|
||||
void paint(Canvas canvas, Size size) {
|
||||
if (candles.isEmpty) return;
|
||||
|
||||
final double chartWidth = size.width - rightPadding;
|
||||
final double baseWidth = 10.0;
|
||||
final double spacing = 5.0;
|
||||
final double candleWidth = baseWidth * scale;
|
||||
final double totalCandleSpace = candleWidth + (spacing * scale);
|
||||
|
||||
double maxPrice = 0;
|
||||
double minPrice = double.infinity;
|
||||
|
||||
int visibleCount = 0;
|
||||
for (int i = 0; i < candles.length; i++) {
|
||||
final dx = (i * totalCandleSpace) + panOffset;
|
||||
if (dx + candleWidth > -100 && dx < chartWidth + 100) {
|
||||
visibleCount++;
|
||||
final c = candles[i];
|
||||
if (c.high > maxPrice) maxPrice = c.high;
|
||||
if (c.low < minPrice) minPrice = c.low;
|
||||
}
|
||||
}
|
||||
|
||||
if (visibleCount == 0 || minPrice == double.infinity || maxPrice <= 0) {
|
||||
for (var c in candles) {
|
||||
if (c.high > maxPrice) maxPrice = c.high;
|
||||
if (c.low < minPrice) minPrice = c.low;
|
||||
}
|
||||
}
|
||||
|
||||
if (minPrice == double.infinity || maxPrice <= 0) return;
|
||||
|
||||
final range = maxPrice - minPrice;
|
||||
maxPrice += max(range * 0.1, 1.0);
|
||||
minPrice -= max(range * 0.1, 1.0);
|
||||
final paddedRange = maxPrice - minPrice;
|
||||
if (paddedRange <= 0) return;
|
||||
|
||||
final double chartHeight = size.height - bottomPadding;
|
||||
final double volumeHeight = chartHeight * 0.15;
|
||||
final double candleAreaHeight = chartHeight - volumeHeight;
|
||||
|
||||
double maxVolume = 0;
|
||||
for (int i = 0; i < candles.length; i++) {
|
||||
if (candles[i].volume > maxVolume) maxVolume = candles[i].volume;
|
||||
}
|
||||
if (maxVolume == 0) maxVolume = 1;
|
||||
|
||||
ChartOverlayRenderer.drawGridAndAxis(
|
||||
canvas: canvas,
|
||||
size: size,
|
||||
chartWidth: chartWidth,
|
||||
candleAreaHeight: candleAreaHeight,
|
||||
minPrice: minPrice,
|
||||
maxPrice: maxPrice,
|
||||
range: paddedRange,
|
||||
candles: candles,
|
||||
scale: scale,
|
||||
panOffset: panOffset,
|
||||
bottomPadding: bottomPadding,
|
||||
theme: theme,
|
||||
);
|
||||
|
||||
final paintBullish = Paint()..color = theme.primaryColor..style = PaintingStyle.fill;
|
||||
final paintBearish = Paint()..color = theme.accentRed..style = PaintingStyle.fill;
|
||||
final paintWickBullish = Paint()..color = theme.primaryColor..strokeWidth = 1.5;
|
||||
final paintWickBearish = Paint()..color = theme.accentRed..strokeWidth = 1.5;
|
||||
|
||||
final ema20Path = Path();
|
||||
final sma50Path = Path();
|
||||
final sma200Path = Path();
|
||||
final supertrendPath = Path();
|
||||
bool firstEma20 = true;
|
||||
bool firstSma50 = true;
|
||||
bool firstSma200 = true;
|
||||
bool firstSupertrend = true;
|
||||
|
||||
double getXForTime(DateTime t) {
|
||||
if (candles.isEmpty) return 0.0;
|
||||
final lastCandle = candles.last;
|
||||
if (t.isAfter(lastCandle.timestamp) && candles.length > 1) {
|
||||
final totalSpan = lastCandle.timestamp.difference(candles.first.timestamp).inSeconds;
|
||||
final secPerCandle = totalSpan / (candles.length - 1);
|
||||
if (secPerCandle > 0) {
|
||||
final futureSecs = t.difference(lastCandle.timestamp).inSeconds;
|
||||
final futureCandles = futureSecs / secPerCandle;
|
||||
final lastDx = ((candles.length - 1) * totalCandleSpace) + panOffset + candleWidth / 2;
|
||||
return lastDx + (futureCandles * totalCandleSpace);
|
||||
}
|
||||
}
|
||||
|
||||
int bestIndex = 0;
|
||||
int minDiff = 999999999;
|
||||
for (int i = 0; i < candles.length; i++) {
|
||||
final diff = candles[i].timestamp.difference(t).inSeconds.abs();
|
||||
if (diff < minDiff) {
|
||||
minDiff = diff;
|
||||
bestIndex = i;
|
||||
}
|
||||
}
|
||||
return (bestIndex * totalCandleSpace) + panOffset + candleWidth / 2;
|
||||
}
|
||||
|
||||
double getYForPrice(double price) {
|
||||
return candleAreaHeight - ((price - minPrice) / paddedRange) * candleAreaHeight;
|
||||
}
|
||||
|
||||
canvas.save();
|
||||
canvas.clipRect(Rect.fromLTWH(0, 0, chartWidth, chartHeight));
|
||||
|
||||
for (int i = 0; i < candles.length; i++) {
|
||||
final candle = candles[i];
|
||||
final isBullish = candle.close >= candle.open;
|
||||
|
||||
final dx = (i * totalCandleSpace) + panOffset;
|
||||
if (dx < -candleWidth || dx > chartWidth) continue;
|
||||
|
||||
final yHigh = getYForPrice(candle.high);
|
||||
final yLow = getYForPrice(candle.low);
|
||||
final yOpen = getYForPrice(candle.open);
|
||||
final yClose = getYForPrice(candle.close);
|
||||
|
||||
canvas.drawLine(
|
||||
Offset(dx + candleWidth / 2, yHigh),
|
||||
Offset(dx + candleWidth / 2, yLow),
|
||||
isBullish ? paintWickBullish : paintWickBearish,
|
||||
);
|
||||
|
||||
final top = min(yOpen, yClose);
|
||||
final bottom = max(yOpen, yClose);
|
||||
final bodyHeight = max(bottom - top, 1.0);
|
||||
|
||||
canvas.drawRect(
|
||||
Rect.fromLTWH(dx, top, candleWidth, bodyHeight),
|
||||
isBullish ? paintBullish : paintBearish,
|
||||
);
|
||||
|
||||
final vHeight = (candle.volume / maxVolume) * volumeHeight;
|
||||
final vTop = chartHeight - vHeight;
|
||||
canvas.drawRect(
|
||||
Rect.fromLTWH(dx, vTop, candleWidth, vHeight),
|
||||
Paint()..color = (isBullish ? theme.primaryColor : theme.accentRed).withValues(alpha: 0.3)..style = PaintingStyle.fill,
|
||||
);
|
||||
|
||||
if (indicators.isNotEmpty) {
|
||||
final cx = dx + candleWidth / 2;
|
||||
IndicatorModel? match;
|
||||
for (var ind in indicators) {
|
||||
if (ind.timestamp.isAtSameMomentAs(candle.timestamp) || ind.timestamp.difference(candle.timestamp).inHours.abs() < 12) {
|
||||
match = ind;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (match != null) {
|
||||
if (showEma && match.ema20 != null) {
|
||||
final y = getYForPrice(match.ema20!);
|
||||
if (firstEma20) { ema20Path.moveTo(cx, y); firstEma20 = false; }
|
||||
else { ema20Path.lineTo(cx, y); }
|
||||
}
|
||||
if (showSma50 && match.sma50 != null) {
|
||||
final y = getYForPrice(match.sma50!);
|
||||
if (firstSma50) { sma50Path.moveTo(cx, y); firstSma50 = false; }
|
||||
else { sma50Path.lineTo(cx, y); }
|
||||
}
|
||||
if (showSma200 && match.sma200 != null) {
|
||||
final y = getYForPrice(match.sma200!);
|
||||
if (firstSma200) { sma200Path.moveTo(cx, y); firstSma200 = false; }
|
||||
else { sma200Path.lineTo(cx, y); }
|
||||
}
|
||||
|
||||
if (showSupertrend) {
|
||||
final stVal = match.supertrendDirection == 'BULLISH' ? match.supertrendLower : match.supertrendUpper;
|
||||
if (stVal != null) {
|
||||
final y = getYForPrice(stVal);
|
||||
if (firstSupertrend) { supertrendPath.moveTo(cx, y); firstSupertrend = false; }
|
||||
else { supertrendPath.lineTo(cx, y); }
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (showEma && !firstEma20) {
|
||||
canvas.drawPath(ema20Path, Paint()..color = Colors.blueAccent..style = PaintingStyle.stroke..strokeWidth = 1.5);
|
||||
}
|
||||
if (showSma50 && !firstSma50) {
|
||||
canvas.drawPath(sma50Path, Paint()..color = Colors.orangeAccent..style = PaintingStyle.stroke..strokeWidth = 1.5);
|
||||
}
|
||||
if (showSma200 && !firstSma200) {
|
||||
canvas.drawPath(sma200Path, Paint()..color = Colors.redAccent..style = PaintingStyle.stroke..strokeWidth = 2.0);
|
||||
}
|
||||
if (showSupertrend && !firstSupertrend) {
|
||||
canvas.drawPath(supertrendPath, Paint()..color = AppTheme.primaryEmerald..style = PaintingStyle.stroke..strokeWidth = 2.0);
|
||||
}
|
||||
|
||||
if (showPatterns) {
|
||||
ChartOverlayRenderer.drawPatterns(
|
||||
canvas: canvas,
|
||||
patterns: patterns,
|
||||
getX: getXForTime,
|
||||
getY: getYForPrice,
|
||||
);
|
||||
ChartOverlayRenderer.drawFutureProjectionZone(
|
||||
canvas: canvas,
|
||||
candles: candles,
|
||||
patterns: patterns,
|
||||
chartWidth: chartWidth,
|
||||
candleAreaHeight: candleAreaHeight,
|
||||
getX: getXForTime,
|
||||
getY: getYForPrice,
|
||||
theme: theme,
|
||||
);
|
||||
}
|
||||
|
||||
if (showSignals) {
|
||||
ChartOverlayRenderer.drawSignals(
|
||||
canvas: canvas,
|
||||
signals: signals,
|
||||
getX: getXForTime,
|
||||
getY: getYForPrice,
|
||||
theme: theme,
|
||||
);
|
||||
}
|
||||
|
||||
if (tapPosition != null && tapPosition!.dx < chartWidth) {
|
||||
ChartOverlayRenderer.drawCrosshair(
|
||||
canvas: canvas,
|
||||
tapPosition: tapPosition!,
|
||||
chartWidth: chartWidth,
|
||||
chartHeight: chartHeight,
|
||||
theme: theme,
|
||||
);
|
||||
}
|
||||
|
||||
canvas.restore();
|
||||
}
|
||||
|
||||
@override
|
||||
bool shouldRepaint(covariant CandlestickPainter oldDelegate) {
|
||||
return oldDelegate.scale != scale ||
|
||||
oldDelegate.panOffset != panOffset ||
|
||||
oldDelegate.candles != candles ||
|
||||
oldDelegate.patterns != patterns ||
|
||||
oldDelegate.signals != signals ||
|
||||
oldDelegate.indicators != indicators ||
|
||||
oldDelegate.tapPosition != tapPosition;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,331 @@
|
||||
import 'dart:math';
|
||||
import 'package:flutter/material.dart';
|
||||
import '../../../../core/theme/app_theme.dart';
|
||||
import '../../models/technical_analysis_model.dart';
|
||||
import '../../utils/pattern_explanations.dart';
|
||||
|
||||
/// Helper for rendering chart overlays: grid, axes, patterns, future projections, and signals.
|
||||
class ChartOverlayRenderer {
|
||||
static void drawGridAndAxis({
|
||||
required Canvas canvas,
|
||||
required Size size,
|
||||
required double chartWidth,
|
||||
required double candleAreaHeight,
|
||||
required double minPrice,
|
||||
required double maxPrice,
|
||||
required double range,
|
||||
required List<CandleModel> candles,
|
||||
required double scale,
|
||||
required double panOffset,
|
||||
required double bottomPadding,
|
||||
required ThemePreset theme,
|
||||
}) {
|
||||
final gridPaint = Paint()..color = theme.glassBorder..strokeWidth = 1;
|
||||
final textPainter = TextPainter(textDirection: TextDirection.ltr);
|
||||
|
||||
const int gridLines = 5;
|
||||
for (int i = 0; i <= gridLines; i++) {
|
||||
final y = candleAreaHeight - (i / gridLines) * candleAreaHeight;
|
||||
final price = minPrice + (i / gridLines) * range;
|
||||
|
||||
canvas.drawLine(Offset(0, y), Offset(chartWidth, y), gridPaint);
|
||||
|
||||
textPainter.text = TextSpan(
|
||||
text: price.toStringAsFixed(2),
|
||||
style: TextStyle(color: theme.textMuted, fontSize: 11),
|
||||
);
|
||||
textPainter.layout();
|
||||
textPainter.paint(canvas, Offset(chartWidth + 5, y - 6));
|
||||
}
|
||||
|
||||
if (candles.isEmpty) return;
|
||||
|
||||
const double baseWidth = 10.0;
|
||||
const double spacing = 5.0;
|
||||
final double candleWidth = baseWidth * scale;
|
||||
final double totalCandleSpace = candleWidth + (spacing * scale);
|
||||
|
||||
final int xSteps = (chartWidth / 80).floor();
|
||||
if (xSteps <= 0) return;
|
||||
|
||||
for (int i = 1; i < xSteps; i++) {
|
||||
double x = i * (chartWidth / xSteps);
|
||||
int candleIndex = ((x - panOffset) / totalCandleSpace).round();
|
||||
if (candleIndex >= 0 && candleIndex < candles.length) {
|
||||
final t = candles[candleIndex].timestamp;
|
||||
textPainter.text = TextSpan(
|
||||
text: "${t.month.toString().padLeft(2, '0')}-${t.day.toString().padLeft(2, '0')}",
|
||||
style: TextStyle(color: theme.textMuted, fontSize: 10),
|
||||
);
|
||||
textPainter.layout();
|
||||
textPainter.paint(canvas, Offset(x - textPainter.width / 2, size.height - bottomPadding + 4));
|
||||
canvas.drawLine(Offset(x, 0), Offset(x, size.height - bottomPadding), gridPaint);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void drawFutureProjectionZone({
|
||||
required Canvas canvas,
|
||||
required List<CandleModel> candles,
|
||||
required List<ChartPatternModel> patterns,
|
||||
required double chartWidth,
|
||||
required double candleAreaHeight,
|
||||
required double Function(DateTime) getX,
|
||||
required double Function(double) getY,
|
||||
required ThemePreset theme,
|
||||
}) {
|
||||
if (candles.isEmpty) return;
|
||||
|
||||
final lastCandle = candles.last;
|
||||
final double lastX = getX(lastCandle.timestamp);
|
||||
|
||||
if (lastX < chartWidth - 10) {
|
||||
final futureRect = Rect.fromLTRB(lastX, 0, chartWidth, candleAreaHeight);
|
||||
final futureBgPaint = Paint()
|
||||
..color = theme.primaryColor.withValues(alpha: 0.05)
|
||||
..style = PaintingStyle.fill;
|
||||
canvas.drawRect(futureRect, futureBgPaint);
|
||||
|
||||
final sepPaint = Paint()
|
||||
..color = theme.primaryColor.withValues(alpha: 0.3)
|
||||
..style = PaintingStyle.stroke
|
||||
..strokeWidth = 1.0;
|
||||
canvas.drawLine(Offset(lastX, 0), Offset(lastX, candleAreaHeight), sepPaint);
|
||||
|
||||
final textPainter = TextPainter(textDirection: TextDirection.ltr);
|
||||
textPainter.text = TextSpan(
|
||||
text: 'PROGNOSE (KI & MUSTER)',
|
||||
style: TextStyle(color: theme.primaryColor, fontSize: 9, fontWeight: FontWeight.bold, letterSpacing: 0.8),
|
||||
);
|
||||
textPainter.layout();
|
||||
textPainter.paint(canvas, Offset(lastX + 8, 8));
|
||||
|
||||
for (var pattern in patterns) {
|
||||
double targetPrice = 0.0;
|
||||
if (pattern.breakoutSignal != null && pattern.breakoutSignal!.targetPrice > 0) {
|
||||
targetPrice = pattern.breakoutSignal!.targetPrice;
|
||||
} else if (pattern.lowerLine.isNotEmpty && pattern.upperLine.isNotEmpty) {
|
||||
final diff = (pattern.upperLine.last.price - pattern.lowerLine.last.price).abs();
|
||||
targetPrice = lastCandle.close >= pattern.lowerLine.last.price
|
||||
? lastCandle.close + (diff > 0 ? diff : lastCandle.close * 0.05)
|
||||
: lastCandle.close - (diff > 0 ? diff : lastCandle.close * 0.05);
|
||||
} else if (pattern.upperLine.isNotEmpty) {
|
||||
targetPrice = pattern.upperLine.last.price;
|
||||
} else if (pattern.lowerLine.isNotEmpty) {
|
||||
targetPrice = pattern.lowerLine.last.price;
|
||||
}
|
||||
|
||||
if (targetPrice > 0) {
|
||||
final targetY = getY(targetPrice);
|
||||
const int numSteps = 8;
|
||||
final double availableWidth = max(chartWidth - lastX - 40, 60.0);
|
||||
final double stepWidth = availableWidth / numSteps;
|
||||
|
||||
final isBullish = targetPrice >= lastCandle.close;
|
||||
final projColor = isBullish ? AppTheme.primaryEmerald : AppTheme.accentRed;
|
||||
|
||||
double currX = lastX;
|
||||
double currPrice = lastCandle.close;
|
||||
final double priceDeltaPerStep = (targetPrice - lastCandle.close) / numSteps;
|
||||
|
||||
for (int k = 1; k <= numSteps; k++) {
|
||||
final nextX = lastX + (k * stepWidth);
|
||||
final waveNoise = sin(k * 0.9) * (priceDeltaPerStep.abs() * 0.25);
|
||||
final nextPrice = lastCandle.close + (priceDeltaPerStep * k) + waveNoise;
|
||||
|
||||
final highPrice = max(currPrice, nextPrice) + priceDeltaPerStep.abs() * 0.15;
|
||||
final lowPrice = min(currPrice, nextPrice) - priceDeltaPerStep.abs() * 0.15;
|
||||
|
||||
final yOpen = getY(currPrice);
|
||||
final yClose = getY(nextPrice);
|
||||
final yHigh = getY(highPrice);
|
||||
final yLow = getY(lowPrice);
|
||||
|
||||
final cWidth = max(stepWidth * 0.55, 3.0);
|
||||
final cLeft = nextX - cWidth / 2;
|
||||
|
||||
final isStepBullish = nextPrice >= currPrice;
|
||||
final stepColor = isStepBullish ? AppTheme.primaryEmerald : AppTheme.accentRed;
|
||||
|
||||
canvas.drawLine(
|
||||
Offset(nextX, yHigh),
|
||||
Offset(nextX, yLow),
|
||||
Paint()..color = stepColor.withValues(alpha: 0.45)..strokeWidth = 1.0,
|
||||
);
|
||||
|
||||
final top = min(yOpen, yClose);
|
||||
final bottom = max(yOpen, yClose);
|
||||
canvas.drawRect(
|
||||
Rect.fromLTWH(cLeft, top, cWidth, max(bottom - top, 1.5)),
|
||||
Paint()..color = stepColor.withValues(alpha: 0.35)..style = PaintingStyle.fill,
|
||||
);
|
||||
|
||||
currX = nextX;
|
||||
currPrice = nextPrice;
|
||||
}
|
||||
|
||||
final targetX = currX;
|
||||
final pct = ((targetPrice - lastCandle.close) / lastCandle.close) * 100;
|
||||
final pctSign = pct >= 0 ? '+' : '';
|
||||
final targetBadgePainter = TextPainter(
|
||||
text: TextSpan(
|
||||
text: ' ZIEL: ${targetPrice.toStringAsFixed(2)} € ($pctSign${pct.toStringAsFixed(1)}%) ',
|
||||
style: const TextStyle(color: Colors.white, fontSize: 10, fontWeight: FontWeight.bold),
|
||||
),
|
||||
textDirection: TextDirection.ltr,
|
||||
);
|
||||
targetBadgePainter.layout();
|
||||
|
||||
final badgeRect = RRect.fromLTRBR(
|
||||
targetX - targetBadgePainter.width / 2,
|
||||
targetY - targetBadgePainter.height / 2 - 3,
|
||||
targetX + targetBadgePainter.width / 2,
|
||||
targetY + targetBadgePainter.height / 2 + 3,
|
||||
const Radius.circular(6),
|
||||
);
|
||||
canvas.drawRRect(badgeRect, Paint()..color = projColor.withValues(alpha: 0.92));
|
||||
targetBadgePainter.paint(canvas, Offset(targetX - targetBadgePainter.width / 2, targetY - targetBadgePainter.height / 2));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void drawPatterns({
|
||||
required Canvas canvas,
|
||||
required List<ChartPatternModel> patterns,
|
||||
required double Function(DateTime) getX,
|
||||
required double Function(double) getY,
|
||||
}) {
|
||||
for (var pattern in patterns) {
|
||||
final color = PatternExplanations.getColorForPattern(pattern.type);
|
||||
final paint = Paint()..color = color..style = PaintingStyle.stroke..strokeWidth = 2.5;
|
||||
final fillPaint = Paint()..color = color.withValues(alpha: 0.12)..style = PaintingStyle.fill;
|
||||
|
||||
Offset? firstPoint;
|
||||
|
||||
void drawLine(List<PatternPoint> points) {
|
||||
if (points.length < 2) return;
|
||||
final path = Path();
|
||||
final startX = getX(points[0].time);
|
||||
final startY = getY(points[0].price);
|
||||
path.moveTo(startX, startY);
|
||||
firstPoint ??= Offset(startX, startY);
|
||||
|
||||
for (int i = 1; i < points.length; i++) {
|
||||
final px = getX(points[i].time);
|
||||
final py = getY(points[i].price);
|
||||
path.lineTo(px, py);
|
||||
}
|
||||
canvas.drawPath(path, paint);
|
||||
|
||||
for (var p in points) {
|
||||
final px = getX(p.time);
|
||||
final py = getY(p.price);
|
||||
canvas.drawCircle(Offset(px, py), 4, Paint()..color = color);
|
||||
canvas.drawCircle(Offset(px, py), 2, Paint()..color = Colors.white);
|
||||
}
|
||||
}
|
||||
|
||||
if (pattern.upperLine.length >= 2 && pattern.lowerLine.length >= 2) {
|
||||
final polyPath = Path();
|
||||
polyPath.moveTo(getX(pattern.upperLine[0].time), getY(pattern.upperLine[0].price));
|
||||
for (int i = 1; i < pattern.upperLine.length; i++) {
|
||||
polyPath.lineTo(getX(pattern.upperLine[i].time), getY(pattern.upperLine[i].price));
|
||||
}
|
||||
for (int i = pattern.lowerLine.length - 1; i >= 0; i--) {
|
||||
polyPath.lineTo(getX(pattern.lowerLine[i].time), getY(pattern.lowerLine[i].price));
|
||||
}
|
||||
polyPath.close();
|
||||
canvas.drawPath(polyPath, fillPaint);
|
||||
}
|
||||
|
||||
drawLine(pattern.upperLine);
|
||||
drawLine(pattern.lowerLine);
|
||||
|
||||
if (firstPoint != null) {
|
||||
final label = PatternExplanations.getGermanName(pattern.type);
|
||||
final textPainter = TextPainter(
|
||||
text: TextSpan(
|
||||
text: ' $label ',
|
||||
style: const TextStyle(color: Colors.white, fontSize: 10, fontWeight: FontWeight.bold),
|
||||
),
|
||||
textDirection: TextDirection.ltr,
|
||||
)..layout();
|
||||
|
||||
final badgeX = firstPoint!.dx;
|
||||
final badgeY = firstPoint!.dy - 18;
|
||||
final badgeRect = RRect.fromLTRBR(
|
||||
badgeX,
|
||||
badgeY,
|
||||
badgeX + textPainter.width + 4,
|
||||
badgeY + textPainter.height + 4,
|
||||
const Radius.circular(4),
|
||||
);
|
||||
canvas.drawRRect(badgeRect, Paint()..color = color.withValues(alpha: 0.85));
|
||||
textPainter.paint(canvas, Offset(badgeX + 2, badgeY + 2));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void drawSignals({
|
||||
required Canvas canvas,
|
||||
required List<StrategySignalModel> signals,
|
||||
required double Function(DateTime) getX,
|
||||
required double Function(double) getY,
|
||||
required ThemePreset theme,
|
||||
}) {
|
||||
for (var signal in signals) {
|
||||
final x = getX(signal.date);
|
||||
final y = getY(signal.price);
|
||||
|
||||
final isBuy = signal.type.toUpperCase() == 'BUY';
|
||||
final isSell = signal.type.toUpperCase() == 'SELL';
|
||||
if (!isBuy && !isSell) continue;
|
||||
|
||||
final color = isBuy ? theme.primaryColor : theme.accentRed;
|
||||
final label = isBuy ? '▲ BUY' : '▼ SELL';
|
||||
|
||||
final textPainter = TextPainter(
|
||||
text: TextSpan(text: label, style: const TextStyle(color: Colors.white, fontSize: 10, fontWeight: FontWeight.bold)),
|
||||
textDirection: TextDirection.ltr,
|
||||
);
|
||||
textPainter.layout();
|
||||
|
||||
final badgeWidth = textPainter.width + 12;
|
||||
final badgeHeight = textPainter.height + 6;
|
||||
final badgeY = isBuy ? y + 12 : y - badgeHeight - 12;
|
||||
final badgeRect = RRect.fromLTRBR(
|
||||
x - badgeWidth / 2,
|
||||
badgeY,
|
||||
x + badgeWidth / 2,
|
||||
badgeY + badgeHeight,
|
||||
const Radius.circular(10),
|
||||
);
|
||||
|
||||
canvas.drawRRect(badgeRect, Paint()..color = color.withValues(alpha: 0.95));
|
||||
canvas.drawLine(
|
||||
Offset(x, y),
|
||||
Offset(x, isBuy ? badgeY : badgeY + badgeHeight),
|
||||
Paint()..color = color..strokeWidth = 1.5,
|
||||
);
|
||||
textPainter.paint(canvas, Offset(x - textPainter.width / 2, badgeY + 3));
|
||||
}
|
||||
}
|
||||
|
||||
static void drawCrosshair({
|
||||
required Canvas canvas,
|
||||
required Offset tapPosition,
|
||||
required double chartWidth,
|
||||
required double chartHeight,
|
||||
required ThemePreset theme,
|
||||
}) {
|
||||
final paint = Paint()
|
||||
..color = theme.textMuted.withValues(alpha: 0.5)
|
||||
..strokeWidth = 1
|
||||
..style = PaintingStyle.stroke;
|
||||
canvas.drawLine(Offset(tapPosition.dx, 0), Offset(tapPosition.dx, chartHeight), paint);
|
||||
if (tapPosition.dy <= chartHeight) {
|
||||
canvas.drawLine(Offset(0, tapPosition.dy), Offset(chartWidth, tapPosition.dy), paint);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,127 @@
|
||||
import 'package:flutter/material.dart';
|
||||
import '../../../../core/theme/app_theme.dart';
|
||||
import '../../../../core/widgets/glass_container.dart';
|
||||
import '../../utils/metric_explanations.dart';
|
||||
|
||||
class IndicatorRibbonBar extends StatelessWidget {
|
||||
final bool showSma50;
|
||||
final bool showSma200;
|
||||
final bool showEma;
|
||||
final bool showSupertrend;
|
||||
final bool showPatterns;
|
||||
final bool showSignals;
|
||||
final ValueChanged<bool> onToggleSma50;
|
||||
final ValueChanged<bool> onToggleSma200;
|
||||
final ValueChanged<bool> onToggleEma;
|
||||
final ValueChanged<bool> onToggleSupertrend;
|
||||
final ValueChanged<bool> onTogglePatterns;
|
||||
final ValueChanged<bool> onToggleSignals;
|
||||
final VoidCallback? onToggleFullscreen;
|
||||
final bool isFullscreen;
|
||||
|
||||
const IndicatorRibbonBar({
|
||||
super.key,
|
||||
required this.showSma50,
|
||||
required this.showSma200,
|
||||
required this.showEma,
|
||||
required this.showSupertrend,
|
||||
required this.showPatterns,
|
||||
required this.showSignals,
|
||||
required this.onToggleSma50,
|
||||
required this.onToggleSma200,
|
||||
required this.onToggleEma,
|
||||
required this.onToggleSupertrend,
|
||||
required this.onTogglePatterns,
|
||||
required this.onToggleSignals,
|
||||
this.onToggleFullscreen,
|
||||
this.isFullscreen = false,
|
||||
});
|
||||
|
||||
Widget _buildChip(BuildContext context, 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),
|
||||
),
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return GlassContainer(
|
||||
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
|
||||
child: SingleChildScrollView(
|
||||
scrollDirection: Axis.horizontal,
|
||||
child: Row(
|
||||
children: [
|
||||
_buildChip(context, 'SMA 50', showSma50, onToggleSma50, AppTheme.accentCyan),
|
||||
const SizedBox(width: 8),
|
||||
_buildChip(context, 'SMA 200', showSma200, onToggleSma200, Colors.amber),
|
||||
const SizedBox(width: 8),
|
||||
_buildChip(context, 'EMA 20', showEma, onToggleEma, Colors.purpleAccent),
|
||||
const SizedBox(width: 8),
|
||||
_buildChip(context, 'Supertrend', showSupertrend, onToggleSupertrend, AppTheme.primaryEmerald),
|
||||
const SizedBox(width: 8),
|
||||
_buildChip(context, 'Muster', showPatterns, onTogglePatterns, Colors.orangeAccent),
|
||||
const SizedBox(width: 8),
|
||||
_buildChip(context, 'Signale', showSignals, onToggleSignals, Colors.greenAccent),
|
||||
if (onToggleFullscreen != null) ...[
|
||||
const SizedBox(width: 12),
|
||||
Container(width: 1, height: 20, color: AppTheme.activePreset.glassBorder),
|
||||
const SizedBox(width: 12),
|
||||
InkWell(
|
||||
onTap: onToggleFullscreen,
|
||||
borderRadius: BorderRadius.circular(8),
|
||||
child: Container(
|
||||
padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
|
||||
decoration: BoxDecoration(
|
||||
color: AppTheme.activePreset.cardSurface,
|
||||
borderRadius: BorderRadius.circular(8),
|
||||
border: Border.all(color: AppTheme.activePreset.glassBorder),
|
||||
),
|
||||
child: Row(
|
||||
mainAxisSize: MainAxisSize.min,
|
||||
children: [
|
||||
Icon(
|
||||
isFullscreen ? Icons.fullscreen_exit : Icons.fullscreen,
|
||||
size: 16,
|
||||
color: Colors.white,
|
||||
),
|
||||
const SizedBox(width: 4),
|
||||
Text(
|
||||
isFullscreen ? 'Normal' : 'Vollbild',
|
||||
style: const TextStyle(color: Colors.white, fontSize: 11, fontWeight: FontWeight.bold),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
],
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,116 @@
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:intl/intl.dart';
|
||||
import '../../../../core/theme/app_theme.dart';
|
||||
import '../../../../core/widgets/glass_container.dart';
|
||||
import '../../../../core/widgets/status_badge.dart';
|
||||
import '../../models/technical_analysis_model.dart';
|
||||
import '../../utils/pattern_explanations.dart';
|
||||
|
||||
class PatternCardItem extends StatelessWidget {
|
||||
final ChartPatternModel pattern;
|
||||
final int index;
|
||||
final bool isEnabled;
|
||||
final ValueChanged<bool> onToggle;
|
||||
|
||||
const PatternCardItem({
|
||||
super.key,
|
||||
required this.pattern,
|
||||
required this.index,
|
||||
required this.isEnabled,
|
||||
required this.onToggle,
|
||||
});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
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(
|
||||
value: isEnabled,
|
||||
activeColor: patternColor,
|
||||
checkColor: Colors.black,
|
||||
side: BorderSide(color: patternColor.withValues(alpha: 0.6)),
|
||||
onChanged: (bool? val) => onToggle(val ?? false),
|
||||
),
|
||||
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 (${pattern.lowerLine.length} Pkt.)',
|
||||
style: TextStyle(color: AppTheme.textMuted, fontSize: 11, height: 1.3),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
StatusBadge(
|
||||
label: isEnabled ? 'AKTIV' : 'AUS',
|
||||
color: isEnabled ? patternColor : AppTheme.textMuted,
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,63 @@
|
||||
import 'package:flutter/material.dart';
|
||||
import '../../../../core/theme/app_theme.dart';
|
||||
import '../../../../core/widgets/glass_container.dart';
|
||||
import '../../../../core/widgets/status_badge.dart';
|
||||
import '../../models/technical_analysis_model.dart';
|
||||
|
||||
class SignalCardItem extends StatelessWidget {
|
||||
final StrategySignalModel signal;
|
||||
|
||||
const SignalCardItem({super.key, required this.signal});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final isBuy = signal.type.toUpperCase() == 'BUY';
|
||||
final color = isBuy ? AppTheme.primaryEmerald : AppTheme.accentRed;
|
||||
|
||||
return Padding(
|
||||
padding: const EdgeInsets.only(bottom: 8),
|
||||
child: GlassContainer(
|
||||
padding: const EdgeInsets.all(12),
|
||||
child: Row(
|
||||
children: [
|
||||
Container(
|
||||
padding: const EdgeInsets.all(8),
|
||||
decoration: BoxDecoration(
|
||||
color: color.withValues(alpha: 0.15),
|
||||
borderRadius: BorderRadius.circular(8),
|
||||
),
|
||||
child: Icon(isBuy ? Icons.north_east : Icons.south_east, color: color, size: 20),
|
||||
),
|
||||
const SizedBox(width: 12),
|
||||
Expanded(
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
children: [
|
||||
Row(
|
||||
children: [
|
||||
Text(
|
||||
signal.type.toUpperCase(),
|
||||
style: TextStyle(fontWeight: FontWeight.bold, color: color, fontSize: 14),
|
||||
),
|
||||
const SizedBox(width: 8),
|
||||
Text(
|
||||
'@ €${signal.price.toStringAsFixed(2)}',
|
||||
style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 13),
|
||||
),
|
||||
],
|
||||
),
|
||||
const SizedBox(height: 4),
|
||||
Text(
|
||||
'Strategisches Kaufsignal ausgelöst durch technische Indikatoren.',
|
||||
style: TextStyle(color: AppTheme.textSecondary, fontSize: 12),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
StatusBadge(label: 'SIGNAL', color: color),
|
||||
],
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user