Távolság vagy terület mérése a térképen terepbejárás nézetben

lib/pages/map_survey/presentations/controllers/map_survey_controller.dart

@@ -26,6 +26,7 @@ import 'package:terepi_seged/core/geometry_measure_formatter.dart';
 import 'package:terepi_seged/core/geopackage_exporter.dart';
 import 'package:terepi_seged/core/style_editable.dart';
 import 'package:terepi_seged/enums/map_edit_tool.dart';
+import 'package:terepi_seged/enums/map_measure_type.dart';
 import 'package:terepi_seged/enums/map_survey_mode.dart';
 import 'package:terepi_seged/enums/note_type.dart';
 import 'package:terepi_seged/eov/convert_coordinate.dart';
@@ -240,6 +241,11 @@ class MapSurveyController extends GetxController implements StyleEditable {
     }
   }
 
+  final mapMeasureType = MapMeasureType.none.obs;
+  final distanceOrAreaMeasurePoints = <LatLng>[].obs;
+  bool get isDistanceOrAreaMeasuring =>
+      mapMeasureType.value != MapMeasureType.none;
+
   // NoteItem? get selectedPoint =>
   //     pointNotes.firstWhereOrNull((n) => n.id == selectedNoteItemId.value);
 
@@ -1985,4 +1991,31 @@ class MapSurveyController extends GetxController implements StyleEditable {
   void toggleShowLines() => showLines.value = !showLines.value;
 
   void toggleShowPolygons() => showPolygons.value = !showPolygons.value;
+
+  void toggleMeasureDistance() {
+    if (mapMeasureType.value == MapMeasureType.distance) {
+      mapMeasureType.value = MapMeasureType.none;
+    } else {
+      mapMeasureType.value = MapMeasureType.distance;
+    }
+    distanceOrAreaMeasurePoints.clear();
+  }
+
+  void toggleMeasureArea() {
+    if (mapMeasureType.value == MapMeasureType.area) {
+      mapMeasureType.value = MapMeasureType.none;
+    } else {
+      mapMeasureType.value = MapMeasureType.area;
+    }
+    distanceOrAreaMeasurePoints.clear();
+  }
+
+  void addDistanceOrAreaMeasuredPoint(LatLng point) =>
+      distanceOrAreaMeasurePoints.add(point);
+
+  void removeLastDistanceOrAreaMeasuredPoint() {
+    if (distanceOrAreaMeasurePoints.isNotEmpty) {
+      distanceOrAreaMeasurePoints.removeLast();
+    }
+  }
 }