fis_lib_measure/lib/process/primitives/combos/lwh_straightline.dart

import 'dart:ui';

import 'package:fis_measure/interfaces/process/items/item.dart';
import 'package:fis_measure/interfaces/process/items/item_metas.dart';
import 'package:fis_measure/interfaces/process/items/types.dart';
import 'package:fis_measure/interfaces/process/workspace/point_info.dart';
import 'package:fis_measure/process/calcuators/volume.dart';
import 'package:fis_measure/process/items/item_feature.dart';
import 'package:fis_measure/process/items/top_item.dart';
import 'package:fis_measure/process/items/top_item_feature.dart';
import 'package:fis_measure/process/primitives/straightline.dart';

class LWHStraightLine extends TopMeasureItem<LWHStraightlineFeature> {
  static const String _lineLKey = "L";
  static const String _lineWKey = "W";
  static const String _lineHKey = "H";

  late final StraightLine l;
  late final StraightLine w;
  late final StraightLine h;

  LWHStraightLine(ItemMeta meta) : super(meta) {
    final metaL = meta.getChildByName(_lineLKey)!;
    final metaH = meta.getChildByName(_lineHKey)!;
    final metaW = meta.getChildByName(_lineWKey)!;
    l = StraightLine.createDistance(metaL, this);
    w = StraightLine.createDistance(metaW, this);
    h = StraightLine.createDistance(metaH, this);
    childItems.add(l);
    childItems.add(w);
    childItems.add(h);
  }

  @override
  bool onExecuteMouse(PointInfo args) {
    if (args.pointType == PointInfoType.mouseDown) {
      if (feature == null) {
        feature = LWHStraightlineFeature(this);
        listenChildrenUpdate();
      }
      if (childrenAllDone) {
        workingChild.clear();
      }
    }
    feature?.hostVisualArea = args.hostVisualArea;
    final result = workingChild.execute(args);
    doCalculate();
    return result;
  }

  @override
  bool onExecuteTouch(PointInfo args) {
    return workingChild.execute(args);
  }

  @override
  void onCancelingOnce() {}

  static LWHStraightLine createVolume(ItemMeta meta, [IMeasureItem? parent]) {
    if (meta.measureType != MeasureTypes.VolumeThreeDistance) {
      throw ArgumentError();
    }
    var lwh = LWHStraightLine(meta);
    lwh.calculator = VolumeThreeDistanceCal(lwh);

    return lwh;
  }
}

class LWHStraightlineFeature extends TopMeasureItemFeature {
  LWHStraightlineFeature(
    ITopMeasureItem refItem,
  ) : super(refItem);

  @override
  void paint(Canvas canvas, Size size) {
    for (var item in refItem.childItems) {
      for (var feature in item.measuredFeatures) {
        feature.paint(canvas, size);
      }
      item.feature?.paint(canvas, size);
    }
  }
}