KonectarApp/lib/widgets/piechart.dart

import 'package:fl_chart/fl_chart.dart';

import 'package:flutter/material.dart';
import 'package:konectar_events/model/specialtymodel.dart';
import 'package:konectar_events/utils/appcolors.dart';
import 'package:konectar_events/widgets/indicators.dart';

class CustomPieChart extends StatefulWidget {
  List<Specialty> specialtyList;
  CustomPieChart({super.key, required this.specialtyList});

  @override
  State<StatefulWidget> createState() => CustomPieChartState();
}

class CustomPieChartState extends State<CustomPieChart> {
  int touchedIndex = -1;

  @override
  Widget build(BuildContext context) {
    return AspectRatio(
      aspectRatio: 1.3,
      child: Column(
        children: <Widget>[
          const SizedBox(
            height: 18,
          ),
          Expanded(
            child: AspectRatio(
              aspectRatio: 1.9,
              child: PieChart(
                PieChartData(
                  pieTouchData: PieTouchData(
                    touchCallback: (FlTouchEvent event, pieTouchResponse) {
                      setState(() {
                        if (!event.isInterestedForInteractions ||
                            pieTouchResponse == null ||
                            pieTouchResponse.touchedSection == null) {
                          touchedIndex = -1;
                          return;
                        }
                        touchedIndex = pieTouchResponse
                            .touchedSection!.touchedSectionIndex;
                      });
                    },
                  ),
                  borderData: FlBorderData(
                    show: false,
                  ),
                  sectionsSpace: 0,
                  centerSpaceRadius: 60,
                  sections: showingSections(widget.specialtyList),
                ),
              ),
            ),
          ),
          // SizedBox(
          //   height: 5,
          // ),
          Padding(
            padding: const EdgeInsets.only(top: 8.0, bottom: 8.0, left: 8.0),
            child: Column(
                mainAxisAlignment: MainAxisAlignment.start,
                crossAxisAlignment: CrossAxisAlignment.start,
                children: List.generate(widget.specialtyList.length, (i) {
                  return Indicator(
                    size: 10,
                    color: AppColors().appcolors[i],
                    text: widget.specialtyList[i].specialtyName,
                    isSquare: true,
                  );
                })

                //        <Widget>[
                //         Indicator(
                //           size: 8,
                //           color: AppColors.contentColorBlue,
                //           text: 'Medical Oncology',
                //           isSquare: true,
                //         ),
                //         SizedBox(
                //           height: 2,
                //         ),
                //         Indicator(
                //           size: 8,
                //           color: AppColors.contentColorYellow,
                //           text: 'Hematology/Oncology',
                //           isSquare: true,
                //         ),
                //         SizedBox(
                //           height: 2,
                //         ),
                //         Indicator(
                //           size: 8,
                //           color: AppColors.contentColorPurple,
                //           text: 'Internal Medicine',
                //           isSquare: true,
                //         ),
                //         SizedBox(
                //           height: 2,
                //         ),
                //         Indicator(
                //           size: 8,
                //           color: AppColors.contentColorGreen,
                //           text: 'Radiation Oncology',
                //           isSquare: true,
                //         ),
                //         SizedBox(
                //           height: 2,
                //         ),
                //         Indicator(
                //           size: 8,
                //           color: AppColors.contentColorOrange,
                //           text: 'Pediatric Hematology/Oncology',
                //           isSquare: true,
                //         ),
                //         SizedBox(
                //           height: 5,
                //         ),
                //       ],
                ),
          ),
          const SizedBox(
            width: 9,
          ),
        ],
      ),
    );
  }

  List<PieChartSectionData> showingSections(List<Specialty> specialtyList) {
    double total = 0.0;
    for (var obj in specialtyList) {
      total += double.parse(obj.specialtyCount);
    }

    return List.generate(specialtyList.length, (i) {
      final isTouched = i == touchedIndex;
      final fontSize = isTouched ? 14.0 : 12.0;
      final radius = isTouched ? 60.0 : 50.0;
      const shadows = [Shadow(color: Colors.black, blurRadius: 2)];
      return PieChartSectionData(
        color: AppColors().appcolors[i],
        value: ((double.parse(specialtyList[i].specialtyCount) / total) * 100)
            .roundToDouble(),
        title:
            '${((double.parse(specialtyList[i].specialtyCount) / total) * 100).roundToDouble()}%',
        radius: radius,
        titleStyle: TextStyle(
          fontSize: fontSize,
          fontWeight: FontWeight.bold,
          color: AppColors.mainTextColor1,
          shadows: shadows,
        ),
      );
      // switch (i) {
      //   case 0:
      //     return PieChartSectionData(
      //       color: AppColors.contentColorBlue,
      //       value:
      //           (double.parse(specialtyList[i].specialtyCount) * total) / 100,
      //       title:
      //           '${(double.parse(specialtyList[i].specialtyCount) * total) / 100}%',
      //       radius: radius,
      //       titleStyle: TextStyle(
      //         fontSize: fontSize,
      //         fontWeight: FontWeight.bold,
      //         color: AppColors.mainTextColor1,
      //         shadows: shadows,
      //       ),
      //     );
      //   case 1:
      //     return PieChartSectionData(
      //       color: AppColors.contentColorYellow,
      //       value: double.parse(specialtyList[i].specialtyCount) / 100,
      //       title: '${double.parse(specialtyList[i].specialtyCount) / 100}%',
      //       radius: radius,
      //       titleStyle: TextStyle(
      //         fontSize: fontSize,
      //         fontWeight: FontWeight.bold,
      //         color: AppColors.mainTextColor1,
      //         shadows: shadows,
      //       ),
      //     );
      //   case 2:
      //     return PieChartSectionData(
      //       color: AppColors.contentColorPurple,
      //       value: double.parse(specialtyList[i].specialtyCount) / 100,
      //       title: '${double.parse(specialtyList[i].specialtyCount) / 100}%',
      //       radius: radius,
      //       titleStyle: TextStyle(
      //         fontSize: fontSize,
      //         fontWeight: FontWeight.bold,
      //         color: AppColors.mainTextColor1,
      //         shadows: shadows,
      //       ),
      //     );
      //   case 3:
      //     return PieChartSectionData(
      //       color: AppColors.contentColorGreen,
      //       value: double.parse(specialtyList[i].specialtyCount) / 100,
      //       title: '${double.parse(specialtyList[i].specialtyCount) / 100}%',
      //       radius: radius,
      //       titleStyle: TextStyle(
      //         fontSize: fontSize,
      //         fontWeight: FontWeight.bold,
      //         color: AppColors.mainTextColor1,
      //         shadows: shadows,
      //       ),
      //     );
      //   case 4:
      //     return PieChartSectionData(
      //       color: AppColors.contentColorOrange,
      //       value: double.parse(specialtyList[i].specialtyCount) / 100,
      //       title: '${double.parse(specialtyList[i].specialtyCount)}%',
      //       radius: radius,
      //       titleStyle: TextStyle(
      //         fontSize: fontSize,
      //         fontWeight: FontWeight.bold,
      //         color: AppColors.mainTextColor1,
      //         shadows: shadows,
      //       ),
      //     );

      //   default:
      //     throw Error();
      // }
    });
  }
}