gnssview_old/lib/sky/mulbutton.dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';

class MulButton extends StatefulWidget {
  final controller = Get.find(tag: 'gnss');
  final List<Color> colors;
  final Function(List<Color>) onSelectionChanged;

  MulButton({
    required this.colors,
    required this.onSelectionChanged,
  });

  @override
  _MulButtonState createState() => _MulButtonState();
}

class _MulButtonState extends State<MulButton> {
  late List<bool> selectedColors;

  @override
  void initState() {
    super.initState();
    selectedColors = List.generate(widget.colors.length, (index) => false);
  }

  void updateSelection(int index, bool value) {
    setState(() {
      selectedColors[index] = value;
      List<Color> selected = [];
      for (int i = 0; i < selectedColors.length; i++) {
        if (selectedColors[i]) {
          selected.add(widget.colors[i]);
        }
      }
      widget.onSelectionChanged(selected); // 通知父组件
    });
  }

  @override
  Widget build(BuildContext context) {
    return Wrap(
      spacing: 8.0, // 水平间距
      runSpacing: 4.0, // 垂直间距
      alignment: WrapAlignment.start,
      children: List.generate(widget.colors.length, (index) {
        return Row(
          mainAxisSize: MainAxisSize.min,
          children: [
            Checkbox(
              value: selectedColors[index],
              onChanged: (bool? value) {
                if (value != null) {
                  updateSelection(index, value);
                }
              },
              activeColor: widget.colors[index],
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.circular(4), // 设置边角
              ),
            ),
            Text(
              colorToString(widget.colors[index]),
              style: TextStyle(color: widget.colors[index]),
            ),
          ],
        );
      }),
    );
  }

  String colorToString(Color color) {
    if (color == Colors.blue) return 'GPS';
    if (color == Colors.red) return 'BDS';
    if (color == Colors.green) return 'GLO';
    if (color == Colors.orange) return 'ALS';
    return 'Unknown Color';
  }
}