Line data Source code
1 : // Copyright 2023 The terCAD team. All rights reserved.
2 : // Use of this source code is governed by a CC BY-NC-ND 4.0 license that can be found in the LICENSE file.
3 :
4 : import 'package:app_finance/_classes/herald/app_locale.dart';
5 : import 'package:app_finance/_ext/build_context_ext.dart';
6 : import 'package:app_finance/charts/interface/chart_data.dart';
7 : import 'package:app_finance/charts/painter/column_chart_painter.dart';
8 : import 'package:app_finance/charts/painter/foreground_chart_painter.dart';
9 : import 'package:app_finance/design/generic/empty_widget.dart';
10 : import 'package:flutter/material.dart';
11 : import 'package:intl/intl.dart';
12 :
13 : class ColumnChart extends StatelessWidget {
14 : final double width;
15 : final double height;
16 : final double indent;
17 : final String tooltip;
18 : final List<ChartData> data;
19 : final double yMax;
20 :
21 0 : const ColumnChart({
22 : super.key,
23 : required this.data,
24 : required this.yMax,
25 : required this.width,
26 : required this.height,
27 : this.indent = 0.0,
28 : this.tooltip = '',
29 : });
30 :
31 0 : @override
32 : Widget build(BuildContext context) {
33 0 : if (data.isEmpty || data.last.data.isEmpty) {
34 : return const EmptyWidget();
35 : }
36 0 : final now = DateTime.now();
37 0 : final size = Size(width, height);
38 0 : final bgColor = context.colorScheme.onSurface;
39 0 : final xMin = DateTime(now.year);
40 0 : final xMax = DateTime(now.year + 1);
41 0 : final bg = ForegroundChartPainter(
42 : size: size,
43 : color: bgColor,
44 : lineColor: bgColor,
45 0 : background: bgColor.withOpacity(0.1),
46 : yMin: 0.0,
47 0 : yMax: yMax,
48 0 : yTpl: NumberFormat.compact(locale: AppLocale.code),
49 : xType: DateTime,
50 0 : xMin: xMin.millisecondsSinceEpoch.toDouble(),
51 0 : xMax: xMax.millisecondsSinceEpoch.toDouble(),
52 0 : xTpl: DateFormat.MMM(AppLocale.code),
53 : );
54 0 : return SizedBox(
55 0 : height: size.height,
56 0 : width: size.width,
57 0 : child: CustomPaint(
58 : size: size,
59 0 : painter: ColumnChartPainter(
60 0 : indent: bg.shift,
61 : size: size,
62 0 : data: data,
63 0 : yMax: yMax,
64 0 : xMin: bg.xMin,
65 0 : xMax: bg.xMax,
66 : ),
67 : foregroundPainter: bg,
68 : willChange: false,
69 0 : child: Padding(
70 0 : padding: EdgeInsets.only(top: indent / 4),
71 0 : child: Text(tooltip),
72 : ),
73 : ),
74 : );
75 : }
76 : }
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