pile_nav_new/lib/pages/aim_point/aimPointer.dart

import 'package:cpnav/pages/real/realController.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:scence_map/controllers/controller.dart';
import 'package:scence_map/record_entity.dart';
import 'package:scence_map/scence_map.dart';

import '../../service/pile/device_type.dart';

final ScenceMapController mapcontroller = Get.put(ScenceMapController());

// 对点 瞄准器
class SightController extends GetxController {
  var isNomal = true.obs;
  //左下圆
  var sightOffset = const Offset(3, 3).obs;
  var sightOffsetInit = const Offset(0, 0).obs;
  var sightInit = const Offset(0, 0).obs;
  // var lastSightOffset = const Offset(0, 0).obs; // 新增变量，用于存储上一次手指离开时的位置
  var isCardVisible = false.obs; // 控制卡片是否可见
  RecordEntity? selectedPilePoint;

  var initDx = 0.0.obs;
  var isFirst = true.obs;
  var visualList = [].obs;
  var plot = 2.0.obs;
  var scale = 0.75.obs;
  reset() {
    sightOffset.value = const Offset(3, 3);
    sightOffsetInit.value = const Offset(0, 0);
    sightInit.value = const Offset(0, 0);

    initDx.value = 0.0;
    update();
  }
}

class SightView extends GetView<SightController> {
  const SightView({super.key});

  @override
  Widget build(BuildContext context) {
    final size = MediaQuery.of(context).size;
    MediaQueryData mediaQueryData =
        MediaQueryData.fromView(WidgetsBinding.instance.window); //获取当前屏幕信息
    final orientation = mediaQueryData.orientation; //获得设备方向
    final deviceType = getDeviceType(context);
    double rectWidth = size.height / 2;
    if (!controller.isNomal.value) {
      rectWidth = size.width;
    } else {
      if (orientation == Orientation.landscape) {
        rectWidth = size.width / 2;
        if (deviceType == DeviceType.mobile) {
          rectWidth = size.height - 5;
        }
      } else {
        rectWidth = size.height / 2;
        if (deviceType == DeviceType.mobile) {
          rectWidth = size.width - 5;
        }
      }
    }

    bool isDarkMode = Theme.of(context).brightness == Brightness.dark;

    return Stack(
      children: [
        CustomPaint(
          //绘制瞄准器
          size: Size(rectWidth, rectWidth),
          painter: DrawCicle(controller, 0, 0, isDarkMode),
        )
      ],
    );
  }
}

class DrawCicle extends CustomPainter {
  final SightController sight;
  final double tiltX;
  final double tiltY;
  final bool isDarkMode;

  DrawCicle(this.sight, this.tiltX, this.tiltY, this.isDarkMode);
  final _paint = Paint(); //创建一个画笔并配置其属性
  Path path = Path();

  List<IconData> icons = [
    Icons.arrow_drop_up,
    Icons.arrow_drop_down,
    Icons.arrow_left,
    Icons.arrow_right
  ];
  List<Offset> iconOffset = [];

  List<String> text = ["", "", "", ""]; //['前移', '后移', '左移', '右移'];
  @override
  void paint(Canvas canvas, size) {
    _paint
      ..strokeWidth = 2
      ..style = PaintingStyle.stroke
      ..color = const Color.fromARGB(255, 183, 183, 162);

    double rectWidth = (size.height / 2 - 5).roundToDouble();
    if (!sight.isNomal.value) {
    } else {}

    path.moveTo(0, rectWidth + 5);
    path.lineTo(size.height, rectWidth + 5);
    path.moveTo(rectWidth + 5, 0);
    path.lineTo(rectWidth + 5, size.height);
    canvas.drawPath(path, _paint);
    // 总长 2m
    double step = (rectWidth / sight.plot.value / 10).roundToDouble();
    canvas.translate(rectWidth + 5, rectWidth + 5);
    for (var i = 0; i < 21; i++) {
      if (i % 10 == 0) {
        double line = 7;
        canvas.drawLine(Offset(0, i * step), Offset(line, i * step), _paint);
        canvas.drawLine(Offset(i * step, 0), Offset(i * step, line), _paint);
        canvas.drawLine(Offset(0, -i * step), Offset(line, -i * step), _paint);
        canvas.drawLine(Offset(-i * step, 0), Offset(-i * step, line), _paint);
        drawText(canvas, Offset(line, i * step), i ~/ 10);
        drawText(canvas, Offset(line, -i * step), (-i ~/ 10));
        if (i ~/ 10 != 0) {
          drawText(canvas, Offset(i * step, line), i ~/ 10);
          drawText(canvas, Offset(-i * step, line), (-i ~/ 10));
        }
      } else if (i % 5 == 0) {
        double line = 5;
        canvas.drawLine(Offset(0, i * step), Offset(line, i * step), _paint);
        canvas.drawLine(Offset(i * step, 0), Offset(i * step, line), _paint);
        canvas.drawLine(Offset(0, -i * step), Offset(line, -i * step), _paint);
        canvas.drawLine(Offset(-i * step, 0), Offset(-i * step, line), _paint);
      } else {
        double line = 3;
        canvas.drawLine(Offset(0, i * step), Offset(line, i * step), _paint);
        canvas.drawLine(Offset(i * step, 0), Offset(i * step, line), _paint);
        canvas.drawLine(Offset(0, -i * step), Offset(line, -i * step), _paint);
        canvas.drawLine(Offset(-i * step, 0), Offset(-i * step, line), _paint);
      }
    }
    canvas.translate(-(rectWidth + 5), -(rectWidth + 5));

    canvas.translate(rectWidth + 5, rectWidth + 5);
    // if (sight.selectedRecord.value != Offset(2, 2)) {
    //   drawPoint(canvas);
    // }

    // // 绘制水平仪
    // double x = real.tiltX.value; //
    // double y = real.tiltY.value; //
    // print("----${real.centerX.value},${real.centerY.value}");
    // if (real.tiltX.value == 0 || real.tiltY.value == 0) {
    //   x = 0;
    //   y = 0;
    // }
    // _paint.color = Colors.red;
    // canvas.drawCircle(Offset(x * step * 10, y * step * 10), 10, _paint);
    // canvas.translate(-(rectWidth + 5), -(rectWidth + 5));
  }

  drawText(Canvas canvas, Offset offset, int i, [bool isShow = true]) {
    TextPainter textPainter = TextPainter(
        text: TextSpan(
            text: isShow ? "$i m" : "$i",
            style: TextStyle(
                fontSize: 12, color: isDarkMode ? Colors.white : Colors.black)),
        textDirection: TextDirection.ltr,
        textAlign: TextAlign.left);
    textPainter.layout();

    textPainter.paint(canvas, offset);
  }

  drawPoint(Canvas canvas) {
    canvas.drawCircle(Offset.zero, 20, Paint()..color = Colors.grey);
    // drawText(canvas, pos - const Offset(20, 10), i, false);
  }

  // drawRect(Canvas canvas, double rectWidth) {
  //   double x = item.dx - real.centerX.value;
  //   double y = item.dy - real.centerY.value;
  //   Offset center = Offset(x, y);
  //   canvas.drawRect(
  //       Rect.fromCenter(center: center, width: rectWidth, height: rectWidth),
  //       _paint);
  // }

  @override
  bool shouldRepaint(covariant CustomPainter oldDelegate) => true;
}

class DevicePointer extends StatelessWidget {
  // final DeviceItemController item;
  // DevicePointer(this.item);
  DevicePointer();

  @override
  Widget build(BuildContext context) {
    // double carWidth = item.width / controller.pixel2MeterRatio;
    // double carHeight = item.height / controller.pixel2MeterRatio;

    return Stack(
      alignment: Alignment.center,
      children: [
        SizedBox(
          width: 60.0, // 设置图像的宽度
          height: 60.0, // 设置图像的高度
          child: Image.asset(
            "images/navi_pointer.png",
            errorBuilder: (context, error, stackTrace) {
              return Text('无法加载图片');
            },
          ),
        ),

        // Obx(() {
        //   Offset offset = controller.xy2Screen(
        //       gnsscontroller.pilerCenter.X, gnsscontroller.pilerCenter.Y);

        //   return Positioned(
        //     left: offset.dx,
        //     top: offset.dy,
        //     child: Transform(
        //       transform: Matrix4.identity()
        //         ..rotateZ(-controller.rotation.value),
        //       child: Column(
        //         children: [Text("设备：${item.name}")],
        //       ),
        //     ),
        //   );
        // }),
      ],
    );
  }
}