mirror of
https://github.com/dz0ny/meshcore-sar.git
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chore: Initial commit
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XPovRHpejR4zRxuhjY4Qs3
This commit is contained in:
Janez Troha
495
lib/models/map_drawing.dart
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495
lib/models/map_drawing.dart
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@@ -0,0 +1,495 @@
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import 'package:flutter/material.dart';
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import 'package:flutter_map/flutter_map.dart';
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import 'package:latlong2/latlong.dart';
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import 'map_coordinate_space.dart';
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import '../utils/custom_map_id.dart';
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/// Drawing shape type
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enum DrawingShapeType { line, rectangle }
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/// Drawing color enum for compact network transmission
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enum DrawingColor { red, blue, green, yellow, orange, purple, pink, cyan }
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/// Drawing colors available for user selection
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class DrawingColors {
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static const List<Color> palette = [
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Colors.red,
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Colors.blue,
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Colors.green,
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Colors.yellow,
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Colors.orange,
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Colors.purple,
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Colors.pink,
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Colors.cyan,
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];
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static String colorToName(Color color) {
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if (color == Colors.red) return 'Red';
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if (color == Colors.blue) return 'Blue';
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if (color == Colors.green) return 'Green';
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if (color == Colors.yellow) return 'Yellow';
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if (color == Colors.orange) return 'Orange';
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if (color == Colors.purple) return 'Purple';
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if (color == Colors.pink) return 'Pink';
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if (color == Colors.cyan) return 'Cyan';
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return 'Unknown';
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}
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static int colorToIndex(Color color) {
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for (int i = 0; i < palette.length; i++) {
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if (palette[i].toARGB32() == color.toARGB32()) {
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return i;
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}
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}
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return 0;
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}
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static Color indexToColor(int index) {
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if (index >= 0 && index < palette.length) {
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return palette[index];
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}
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return palette[0];
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}
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}
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abstract class MapDrawing {
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final String id;
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final DrawingShapeType type;
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final Color color;
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final DateTime createdAt;
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final String? senderName;
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final bool isReceived;
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final String? messageId;
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final bool isShared;
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final bool isSent;
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final bool isHidden;
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final MapCoordinateSpace coordinateSpace;
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final String? mapId;
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MapDrawing({
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required this.id,
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required this.type,
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required this.color,
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required this.createdAt,
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this.senderName,
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this.isReceived = false,
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this.messageId,
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this.isShared = false,
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this.isSent = false,
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this.isHidden = false,
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this.coordinateSpace = MapCoordinateSpace.geo,
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this.mapId,
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});
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bool get isCustomMap => coordinateSpace == MapCoordinateSpace.customMap;
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Map<String, dynamic> toJson();
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Map<String, dynamic> toNetworkJson();
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static MapDrawing? fromNetworkJson(
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Map<String, dynamic> json, {
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String? senderName,
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String? messageId,
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MapCoordinateSpace coordinateSpace = MapCoordinateSpace.geo,
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String? mapId,
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}) {
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final typeNum = json['t'] as int?;
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if (typeNum == null ||
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typeNum < 0 ||
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typeNum >= DrawingShapeType.values.length) {
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return null;
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}
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try {
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final type = DrawingShapeType.values[typeNum];
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switch (type) {
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case DrawingShapeType.line:
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return LineDrawing.fromNetworkJson(
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json,
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senderName: senderName,
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messageId: messageId,
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coordinateSpace: coordinateSpace,
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mapId: mapId,
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);
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case DrawingShapeType.rectangle:
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return RectangleDrawing.fromNetworkJson(
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json,
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senderName: senderName,
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messageId: messageId,
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coordinateSpace: coordinateSpace,
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mapId: mapId,
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);
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}
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} catch (_) {
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return null;
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}
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}
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static MapDrawing? fromJson(Map<String, dynamic> json) {
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final typeStr = json['type'] as String?;
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if (typeStr == null) return null;
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try {
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final type = DrawingShapeType.values.firstWhere(
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(value) => value.name == typeStr,
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);
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switch (type) {
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case DrawingShapeType.line:
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return LineDrawing.fromJson(json);
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case DrawingShapeType.rectangle:
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return RectangleDrawing.fromJson(json);
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}
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} catch (_) {
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return null;
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}
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}
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LatLng getCenter();
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LatLngBounds getBounds();
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}
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class LineDrawing extends MapDrawing {
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final List<LatLng> points;
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LineDrawing({
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required super.id,
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required super.color,
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required super.createdAt,
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required this.points,
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super.senderName,
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super.isReceived,
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super.messageId,
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super.isShared,
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super.isSent,
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super.isHidden,
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super.coordinateSpace,
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super.mapId,
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}) : super(type: DrawingShapeType.line);
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@override
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Map<String, dynamic> toJson() {
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return {
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'id': id,
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'type': type.name,
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'color': color.toARGB32(),
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'createdAt': createdAt.toIso8601String(),
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'points': points
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.map((point) => {'lat': point.latitude, 'lon': point.longitude})
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.toList(),
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'isShared': isShared,
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'coordinateSpace': coordinateSpace.name,
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'mapId': normalizeCustomMapId(mapId),
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};
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}
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@override
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Map<String, dynamic> toNetworkJson() {
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final payload = <String, dynamic>{
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't': type.index,
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'c': DrawingColors.colorToIndex(color),
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};
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if (coordinateSpace == MapCoordinateSpace.customMap) {
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payload['m'] = normalizeCustomMapId(mapId);
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payload['p'] = points
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.expand((point) => [point.latitude.round(), point.longitude.round()])
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.toList();
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return payload;
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}
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payload['p'] = points
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.expand(
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(point) => [
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double.parse(point.latitude.toStringAsFixed(5)),
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double.parse(point.longitude.toStringAsFixed(5)),
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],
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)
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.toList();
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return payload;
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}
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static LineDrawing fromJson(Map<String, dynamic> json) {
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final pointsJson = json['points'] as List<dynamic>;
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final points = pointsJson
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.map(
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(point) => LatLng(
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(point['lat'] as num).toDouble(),
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(point['lon'] as num).toDouble(),
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),
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)
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.toList();
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final senderName = json['sender'] as String?;
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return LineDrawing(
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id: json['id'] as String,
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color: Color(json['color'] as int),
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createdAt: DateTime.parse(json['createdAt'] as String),
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points: points,
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senderName: senderName,
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isReceived: senderName != null,
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isShared: json['isShared'] as bool? ?? false,
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coordinateSpace: MapCoordinateSpace.fromName(
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json['coordinateSpace'] as String?,
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),
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mapId: normalizeCustomMapId(json['mapId'] as String?),
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);
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}
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static LineDrawing fromNetworkJson(
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Map<String, dynamic> json, {
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String? senderName,
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String? messageId,
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MapCoordinateSpace coordinateSpace = MapCoordinateSpace.geo,
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String? mapId,
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}) {
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final flatPoints = (json['p'] as List<dynamic>).cast<num>();
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final points = <LatLng>[];
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for (int i = 0; i < flatPoints.length; i += 2) {
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points.add(
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LatLng(flatPoints[i].toDouble(), flatPoints[i + 1].toDouble()),
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);
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}
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return LineDrawing(
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id: DateTime.now().millisecondsSinceEpoch.toString(),
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color: DrawingColors.indexToColor(json['c'] as int),
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createdAt: DateTime.now(),
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points: points,
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senderName: senderName,
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isReceived: true,
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messageId: messageId,
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coordinateSpace: coordinateSpace,
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mapId: normalizeCustomMapId(mapId),
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);
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}
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LineDrawing copyWith({
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List<LatLng>? points,
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bool? isHidden,
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bool? isShared,
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bool? isReceived,
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String? messageId,
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String? senderName,
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MapCoordinateSpace? coordinateSpace,
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String? mapId,
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}) {
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return LineDrawing(
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id: id,
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color: color,
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createdAt: createdAt,
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points: points ?? this.points,
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isHidden: isHidden ?? this.isHidden,
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isShared: isShared ?? this.isShared,
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isReceived: isReceived ?? this.isReceived,
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messageId: messageId ?? this.messageId,
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senderName: senderName ?? this.senderName,
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coordinateSpace: coordinateSpace ?? this.coordinateSpace,
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mapId: mapId ?? this.mapId,
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);
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}
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@override
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LatLng getCenter() {
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if (points.isEmpty) return const LatLng(0, 0);
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if (points.length == 1) return points[0];
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double sumLat = 0;
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double sumLon = 0;
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for (final point in points) {
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sumLat += point.latitude;
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sumLon += point.longitude;
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}
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return LatLng(sumLat / points.length, sumLon / points.length);
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}
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@override
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LatLngBounds getBounds() {
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if (points.isEmpty) {
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return LatLngBounds(const LatLng(0, 0), const LatLng(0, 0));
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}
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if (points.length == 1) {
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return LatLngBounds(points[0], points[0]);
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}
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double minLat = points[0].latitude;
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double maxLat = points[0].latitude;
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double minLon = points[0].longitude;
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double maxLon = points[0].longitude;
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for (final point in points) {
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if (point.latitude < minLat) minLat = point.latitude;
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if (point.latitude > maxLat) maxLat = point.latitude;
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if (point.longitude < minLon) minLon = point.longitude;
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if (point.longitude > maxLon) maxLon = point.longitude;
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}
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return LatLngBounds(LatLng(minLat, minLon), LatLng(maxLat, maxLon));
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}
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}
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class RectangleDrawing extends MapDrawing {
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final LatLng topLeft;
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final LatLng bottomRight;
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RectangleDrawing({
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required super.id,
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required super.color,
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required super.createdAt,
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required this.topLeft,
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required this.bottomRight,
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super.senderName,
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super.isReceived,
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super.messageId,
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super.isShared,
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super.isSent,
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super.isHidden,
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super.coordinateSpace,
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super.mapId,
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}) : super(type: DrawingShapeType.rectangle);
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List<LatLng> get corners => [
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topLeft,
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LatLng(topLeft.latitude, bottomRight.longitude),
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bottomRight,
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LatLng(bottomRight.latitude, topLeft.longitude),
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topLeft,
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];
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@override
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Map<String, dynamic> toJson() {
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return {
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'id': id,
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'type': type.name,
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'color': color.toARGB32(),
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'createdAt': createdAt.toIso8601String(),
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'topLeft': {'lat': topLeft.latitude, 'lon': topLeft.longitude},
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'bottomRight': {
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'lat': bottomRight.latitude,
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'lon': bottomRight.longitude,
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},
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'isShared': isShared,
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'coordinateSpace': coordinateSpace.name,
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'mapId': normalizeCustomMapId(mapId),
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};
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}
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@override
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Map<String, dynamic> toNetworkJson() {
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final payload = <String, dynamic>{
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't': type.index,
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'c': DrawingColors.colorToIndex(color),
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};
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if (coordinateSpace == MapCoordinateSpace.customMap) {
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payload['m'] = normalizeCustomMapId(mapId);
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payload['b'] = [
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topLeft.latitude.round(),
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topLeft.longitude.round(),
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bottomRight.latitude.round(),
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bottomRight.longitude.round(),
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];
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return payload;
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}
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payload['b'] = [
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double.parse(topLeft.latitude.toStringAsFixed(5)),
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double.parse(topLeft.longitude.toStringAsFixed(5)),
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double.parse(bottomRight.latitude.toStringAsFixed(5)),
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double.parse(bottomRight.longitude.toStringAsFixed(5)),
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];
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return payload;
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}
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static RectangleDrawing fromJson(Map<String, dynamic> json) {
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final topLeftJson = json['topLeft'] as Map<String, dynamic>;
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final bottomRightJson = json['bottomRight'] as Map<String, dynamic>;
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final senderName = json['sender'] as String?;
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return RectangleDrawing(
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id: json['id'] as String,
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color: Color(json['color'] as int),
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createdAt: DateTime.parse(json['createdAt'] as String),
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topLeft: LatLng(
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(topLeftJson['lat'] as num).toDouble(),
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(topLeftJson['lon'] as num).toDouble(),
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),
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bottomRight: LatLng(
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(bottomRightJson['lat'] as num).toDouble(),
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(bottomRightJson['lon'] as num).toDouble(),
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),
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senderName: senderName,
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isReceived: senderName != null,
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isShared: json['isShared'] as bool? ?? false,
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coordinateSpace: MapCoordinateSpace.fromName(
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json['coordinateSpace'] as String?,
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),
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mapId: normalizeCustomMapId(json['mapId'] as String?),
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);
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}
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static RectangleDrawing fromNetworkJson(
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Map<String, dynamic> json, {
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String? senderName,
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String? messageId,
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MapCoordinateSpace coordinateSpace = MapCoordinateSpace.geo,
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String? mapId,
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}) {
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final bounds = (json['b'] as List<dynamic>).cast<num>();
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return RectangleDrawing(
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id: DateTime.now().millisecondsSinceEpoch.toString(),
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color: DrawingColors.indexToColor(json['c'] as int),
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createdAt: DateTime.now(),
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topLeft: LatLng(bounds[0].toDouble(), bounds[1].toDouble()),
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bottomRight: LatLng(bounds[2].toDouble(), bounds[3].toDouble()),
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senderName: senderName,
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isReceived: true,
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messageId: messageId,
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coordinateSpace: coordinateSpace,
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mapId: normalizeCustomMapId(mapId),
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);
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}
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RectangleDrawing copyWith({
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LatLng? topLeft,
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LatLng? bottomRight,
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bool? isHidden,
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bool? isShared,
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bool? isReceived,
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String? messageId,
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String? senderName,
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MapCoordinateSpace? coordinateSpace,
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String? mapId,
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}) {
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return RectangleDrawing(
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id: id,
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color: color,
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createdAt: createdAt,
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topLeft: topLeft ?? this.topLeft,
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bottomRight: bottomRight ?? this.bottomRight,
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isHidden: isHidden ?? this.isHidden,
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isShared: isShared ?? this.isShared,
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isReceived: isReceived ?? this.isReceived,
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messageId: messageId ?? this.messageId,
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senderName: senderName ?? this.senderName,
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coordinateSpace: coordinateSpace ?? this.coordinateSpace,
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mapId: mapId ?? this.mapId,
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);
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}
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@override
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LatLng getCenter() {
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return LatLng(
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(topLeft.latitude + bottomRight.latitude) / 2,
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(topLeft.longitude + bottomRight.longitude) / 2,
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);
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}
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@override
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LatLngBounds getBounds() {
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return LatLngBounds(topLeft, bottomRight);
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}
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||||
}
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