d_chart

D'Chart is a package for compact chart widgets.
The purpose of this pakage is simple way to use chart from community_charts_flutter.
Chart Available from community_charts_flutter:

• bar
• line
• pie
• donut
• gauge

The use of this package is made as concise as possible.

Usage

Wrap Chart with Widget Size like SizedBox, Container, Aspecration etc to set root size for chart

1. Bar

DChartBar(
    data: [
        {
            'id': 'Bar',
            'data': [
                {'domain': '2020', 'measure': 3},
                {'domain': '2021', 'measure': 4},
                {'domain': '2022', 'measure': 6},
                {'domain': '2023', 'measure': 0.3},
            ],
        },
    ],
    domainLabelPaddingToAxisLine: 16,
    axisLineTick: 2,
    axisLinePointTick: 2,
    axisLinePointWidth: 10,
    axisLineColor: Colors.green,
    measureLabelPaddingToAxisLine: 16,
    barColor: (barData, index, id) => Colors.green,
    showBarValue: true,
),

---

2. Line

DChartLine(
    data: [
        {
            'id': 'Line',
            'data': [
                {'domain': 0, 'measure': 4.1},
                {'domain': 2, 'measure': 4},
                {'domain': 3, 'measure': 6},
                {'domain': 4, 'measure': 1},
            ],
        },
    ],
    lineColor: (lineData, index, id) => Colors.amber,
),

---

3. Pie & Donut

DChartPie(
    data: [
        {'domain': 'Flutter', 'measure': 28},
        {'domain': 'React Native', 'measure': 27},
        {'domain': 'Ionic', 'measure': 20},
        {'domain': 'Cordova', 'measure': 15},
    ],
    fillColor: (pieData, index) => Colors.purple,
),

DChartPie(
    data: [
        {'domain': 'Flutter', 'measure': 28},
        {'domain': 'React Native', 'measure': 27},
        {'domain': 'Ionic', 'measure': 20},
        {'domain': 'Cordova', 'measure': 15},
    ],
    fillColor: (pieData, index) => Colors.purple,
    donutWidth: 30,
    labelColor: Colors.white,
),

---

4. Gauge

DChartGauge(
    data: [
        {'domain': 'Off', 'measure': 30},
        {'domain': 'Warm', 'measure': 30},
        {'domain': 'Hot', 'measure': 30},
    ],
    fillColor: (pieData, index) {
        switch (pieData['domain']) {
            case 'Off':
            return Colors.green;
            case 'Warm':
            return Colors.orange;
            default:
            return Colors.red;
        }
    },
    showLabelLine: false,
    pieLabel: (pieData, index) {
        return "${pieData['domain']}";
    },
    labelPosition: PieLabelPosition.inside,
    labelPadding: 0,
    labelColor: Colors.white,
),

---

5. Bar Custom

for chart size, wrap with box widget or which widget have size

AspectRatio(
    aspectRatio: 16 / 9,
    child: DChartBarCustom(
        showDomainLine: true,
        showMeasureLine: true,
        showDomainLabel: true,
        showMeasureLabel: true,
        spaceBetweenItem: 8,
        listData: [
            DChartBarDataCustom(
                value: 13,
                label: 'Jan',
                color: Colors.blue,
            ),
            DChartBarDataCustom(value: 20, label: 'Feb'),
            DChartBarDataCustom(value: 30, label: 'Mar'),
            DChartBarDataCustom(value: 40, label: 'Apr'),
            DChartBarDataCustom(value: 25, label: 'Mei'),
        ],
    ),
),


List ranking = [
    {'class': 'A', 'total': 23},
    {'class': 'B', 'total': 14},
    {'class': 'C', 'total': 8},
    {'class': 'D', 'total': 7},
    {'class': 'E', 'total': 21},
];
DChartBarCustom(
    loadingDuration: const Duration(milliseconds: 1500),
    showLoading: true,
    valueAlign: Alignment.topCenter,
    showDomainLine: true,
    showDomainLabel: true,
    showMeasureLine: true,
    showMeasureLabel: true,
    spaceDomainLabeltoChart: 10,
    spaceMeasureLabeltoChart: 5,
    spaceDomainLinetoChart: 15,
    spaceMeasureLinetoChart: 20,
    spaceBetweenItem: 16,
    radiusBar: const BorderRadius.only(
        topLeft: Radius.circular(8),
        topRight: Radius.circular(8),
    ),
    measureLabelStyle: const TextStyle(
        fontWeight: FontWeight.bold,
        fontSize: 16,
        color: Colors.purple,
    ),
    domainLabelStyle: const TextStyle(
        fontWeight: FontWeight.bold,
        fontSize: 16,
        color: Colors.purple,
    ),
    measureLineStyle:
        const BorderSide(color: Colors.amber, width: 2),
    domainLineStyle: const BorderSide(color: Colors.red, width: 2),
    max: 25,
    listData: List.generate(ranking.length, (index) {
        Color currentColor =
            Color((Random().nextDouble() * 0xFFFFFF).toInt());
        return DChartBarDataCustom(
            onTap: () {
                print(
                '${ranking[index]['class']} => ${ranking[index]['total']}',
                );
            },
            elevation: 8,
            value: ranking[index]['total'].toDouble(),
            label: ranking[index]['class'],
            color: currentColor.withOpacity(1),
            splashColor: Colors.blue,
            showValue: ranking[index]['class'] == 'C' ? false : true,
            valueStyle: ranking[index]['class'] == 'A'
                ? const TextStyle(
                    fontWeight: FontWeight.bold,
                    fontSize: 16,
                    color: Colors.black,
                    )
                : const TextStyle(
                    fontWeight: FontWeight.bold,
                    fontSize: 16,
                    color: Colors.white,
                    ),
            labelCustom: ranking[index]['class'] == 'B'
                ? Transform.rotate(
                    angle: 5.5,
                    child: const Text('Bagus'),
                    )
                : null,
            valueCustom: ranking[index]['total'] > 20
                ? Align(
                    alignment: Alignment.center,
                    child: Column(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                        Container(
                            padding: const EdgeInsets.all(4),
                            decoration: BoxDecoration(
                            border: Border.all(width: 2),
                            shape: BoxShape.circle,
                            ),
                            child: Text(
                            '${ranking[index]['total']}',
                            style: const TextStyle(
                                fontSize: 11,
                                color: Colors.red,
                                fontWeight: FontWeight.w900,
                            ),
                            ),
                        ),
                        const Text(
                            '😄',
                            style: TextStyle(fontSize: 20),
                        ),
                        ],
                    ),
                    )
                : null,
            valueTooltip: '${ranking[index]['total']} Student',
        );
    }),
),

---

Tutorial : All Chart
Line Chart From Data Collection
Bar Chart Custom\

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