mirror of
https://github.com/dz0ny/meshcore-sar.git
synced 2026-08-11 16:30:28 +00:00
844 lines
32 KiB
Dart
844 lines
32 KiB
Dart
import 'package:flutter/material.dart';
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import '../l10n/app_localizations.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 'package:provider/provider.dart';
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import '../models/map_layer.dart';
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import '../providers/offline_tiles_provider.dart';
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import '../widgets/map/polygon_draw_handler.dart';
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/// Screen for downloading offline map tiles.
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///
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/// Allows drawing polygons/rectangles to select areas, choosing zoom levels,
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/// and downloading tiles with real-time progress visualization.
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class OfflineMapScreen extends StatefulWidget {
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const OfflineMapScreen({super.key});
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@override
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State<OfflineMapScreen> createState() => _OfflineMapScreenState();
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}
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class _OfflineMapScreenState extends State<OfflineMapScreen> {
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final MapController _mapController = MapController();
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late OfflineTilesProvider _provider;
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double _currentZoom = 8;
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@override
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void initState() {
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super.initState();
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_provider = context.read<OfflineTilesProvider>();
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_provider.refreshCacheSize();
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_provider.refreshLocalStyles();
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_provider.startPeerDiscovery();
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}
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@override
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void dispose() {
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_provider.stopPeerDiscovery();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: Text(AppLocalizations.of(context)!.offlineMaps),
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actions: [
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Consumer<OfflineTilesProvider>(
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builder: (context, provider, _) {
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return IconButton(
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icon: Badge(
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isLabelVisible: provider.discoveredPeers.isNotEmpty,
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label: Text('${provider.discoveredPeers.length}'),
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child: Icon(
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provider.isServerRunning
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? Icons.wifi_tethering
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: Icons.wifi_tethering_off,
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),
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),
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tooltip: provider.isServerRunning
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? 'Sharing tiles'
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: 'Tile sharing off',
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onPressed: () => _showSharingSheet(context, provider),
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);
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},
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),
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Consumer<OfflineTilesProvider>(
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builder: (context, provider, _) {
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return PopupMenuButton<MapLayer>(
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icon: const Icon(Icons.layers),
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tooltip: AppLocalizations.of(context)!.mapStyle,
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onSelected: (layer) => provider.setSelectedLayer(layer),
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itemBuilder: (_) => [
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for (final layer in MapLayer.allLayers)
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PopupMenuItem(
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value: layer,
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child: Row(
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children: [
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if (layer.type == provider.selectedLayer.type)
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const Icon(Icons.check, size: 18)
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else
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const SizedBox(width: 18),
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const SizedBox(width: 8),
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Text(layer.name),
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],
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),
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),
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],
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);
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},
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),
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],
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),
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body: Stack(
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children: [
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Consumer<OfflineTilesProvider>(
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builder: (context, provider, _) {
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return FlutterMap(
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mapController: _mapController,
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options: MapOptions(
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initialCenter: const LatLng(46.05, 14.5), // Slovenia
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initialZoom: 8,
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onPositionChanged: (camera, hasGesture) {
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if (camera.zoom != _currentZoom) {
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setState(() => _currentZoom = camera.zoom);
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}
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},
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onTap: (tapPosition, point) {
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if (provider.drawingMode != DrawingMode.none) {
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provider.addVertex(point);
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}
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},
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),
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children: [
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TileLayer(
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urlTemplate: provider.selectedLayer.urlTemplate,
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userAgentPackageName: 'com.meshcore.sar',
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maxZoom: provider.selectedLayer.maxZoom,
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),
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CoverageLayer(currentZoom: _currentZoom),
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const PolygonDrawLayer(),
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const DownloadProgressLayer(),
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],
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);
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},
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),
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const DrawingToolbar(),
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Positioned(
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left: 16,
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top: 16,
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.surface.withValues(alpha: 0.85),
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borderRadius: BorderRadius.circular(8),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withValues(alpha: 0.15),
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blurRadius: 4,
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),
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],
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),
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child: Text(
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'Z ${_currentZoom.toStringAsFixed(1)}',
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style: Theme.of(context).textTheme.bodyMedium?.copyWith(
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fontWeight: FontWeight.bold,
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),
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),
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),
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),
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_buildBottomPanel(),
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],
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),
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);
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}
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Widget _buildBottomPanel() {
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return Positioned(
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left: 0,
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right: 0,
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bottom: 0,
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child: Consumer<OfflineTilesProvider>(
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builder: (context, provider, _) {
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return Container(
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.surface,
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borderRadius:
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const BorderRadius.vertical(top: Radius.circular(16)),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withValues(alpha: 0.15),
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blurRadius: 10,
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offset: const Offset(0, -2),
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),
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],
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),
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child: SafeArea(
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top: false,
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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// Saved region presets dropdown
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if (!provider.isDownloading &&
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provider.localStyles
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.any((s) => s.region != null)) ...[
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DropdownButtonFormField<StyleInfo>(
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decoration: const InputDecoration(
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prefixIcon: Icon(Icons.bookmark, size: 20),
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labelText: 'Saved regions',
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isDense: true,
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contentPadding: EdgeInsets.symmetric(
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horizontal: 12, vertical: 8),
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border: OutlineInputBorder(),
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),
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isExpanded: true,
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hint: Text(AppLocalizations.of(context)!.loadASavedRegion),
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items: provider.localStyles
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.where((s) => s.region != null)
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.map((style) => DropdownMenuItem(
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value: style,
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child: Text(
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'${style.displayName} '
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'(z${style.region!.minZoom}-${style.region!.maxZoom}, '
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'${_formatNumber(style.tileCount)} tiles)',
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overflow: TextOverflow.ellipsis,
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),
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))
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.toList(),
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onChanged: (style) {
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if (style != null) {
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provider.loadPreset(style);
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_fitMapToPolygons(provider);
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}
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},
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),
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const SizedBox(height: 8),
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],
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// Zoom range
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if (!provider.isDownloading) ...[
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Row(
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children: [
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Expanded(
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child: _ZoomSelector(
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label: AppLocalizations.of(context)!.minZoom,
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value: provider.minZoom,
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onChanged: provider.setMinZoom,
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),
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),
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const SizedBox(width: 16),
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Expanded(
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child: _ZoomSelector(
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label: AppLocalizations.of(context)!.maxZoom,
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value: provider.maxZoom,
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onChanged: provider.setMaxZoom,
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),
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),
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],
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),
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const SizedBox(height: 8),
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// Tile estimate
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Text(
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provider.hasPolygons
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? '~${_formatNumber(provider.estimatedTileCount)} tiles'
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: 'Draw an area to download',
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style: Theme.of(context).textTheme.bodySmall,
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 4),
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Text(
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'Cache: ${_formatBytes(provider.cacheSizeBytes)}',
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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color: Theme.of(context)
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.colorScheme
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.onSurface
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.withValues(alpha: 0.6),
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),
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textAlign: TextAlign.center,
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),
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],
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// Progress
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if (provider.isDownloading) ...[
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LinearProgressIndicator(
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value: provider.progress.percent,
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),
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const SizedBox(height: 8),
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Text(
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'${(provider.progress.percent * 100).toStringAsFixed(1)}% — '
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'Downloaded: ${provider.progress.downloaded}, '
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'Cached: ${provider.progress.skipped}, '
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'Failed: ${provider.progress.failed} / '
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'${provider.progress.total}',
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style: Theme.of(context).textTheme.bodySmall,
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textAlign: TextAlign.center,
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),
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],
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// Download complete summary
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if (!provider.isDownloading &&
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provider.progress.isComplete) ...[
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const SizedBox(height: 4),
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Text(
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'Done! ${provider.progress.downloaded} downloaded, '
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'${provider.progress.skipped} cached, '
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'${provider.progress.failed} failed',
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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color: Colors.green,
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),
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textAlign: TextAlign.center,
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),
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],
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const SizedBox(height: 12),
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// Action buttons
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Row(
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children: [
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if (!provider.isDownloading) ...[
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Expanded(
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child: FilledButton.icon(
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onPressed: provider.hasPolygons
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? () => provider.startDownload()
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: null,
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icon: const Icon(Icons.download),
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label: Text(AppLocalizations.of(context)!.download),
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),
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),
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if (provider.tileOverlays.isNotEmpty) ...[
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const SizedBox(width: 8),
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IconButton(
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onPressed: provider.clearOverlays,
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icon: const Icon(Icons.layers_clear),
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tooltip: AppLocalizations.of(context)!.clearOverlay,
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),
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],
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if (provider.cacheSizeBytes > 0) ...[
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const SizedBox(width: 8),
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IconButton(
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onPressed: () => _confirmClearCache(provider),
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icon: const Icon(Icons.delete_forever),
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tooltip: AppLocalizations.of(context)!.clearCache,
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),
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],
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],
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if (provider.isDownloading) ...[
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Expanded(
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child: OutlinedButton.icon(
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onPressed: () => provider.cancelDownload(),
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icon: const Icon(Icons.cancel),
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label: Text(AppLocalizations.of(context)!.cancel),
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style: OutlinedButton.styleFrom(
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foregroundColor: Colors.red,
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),
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),
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),
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],
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],
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),
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],
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),
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),
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),
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);
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},
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),
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);
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}
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void _showSharingSheet(BuildContext context, OfflineTilesProvider provider) {
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// Refresh catalogs and local styles when opening
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provider.refreshPeerCatalogs();
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provider.refreshLocalStyles();
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showModalBottomSheet(
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context: context,
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isScrollControlled: true,
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builder: (sheetContext) {
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return DraggableScrollableSheet(
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initialChildSize: 0.65,
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minChildSize: 0.3,
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maxChildSize: 0.9,
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expand: false,
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builder: (context, scrollController) {
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return Consumer<OfflineTilesProvider>(
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builder: (context, provider, _) {
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return ListView(
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controller: scrollController,
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padding: const EdgeInsets.all(16),
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children: [
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// Header
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Center(
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child: Container(
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width: 32,
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height: 4,
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margin: const EdgeInsets.only(bottom: 16),
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decoration: BoxDecoration(
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color: Colors.grey[400],
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borderRadius: BorderRadius.circular(2),
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),
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),
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),
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Text(
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'Tile Sharing',
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style: Theme.of(context).textTheme.titleMedium,
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),
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const SizedBox(height: 12),
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// Server toggle
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SwitchListTile(
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title: Text(AppLocalizations.of(context)!.shareMyTiles),
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subtitle: Text(
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provider.isServerRunning
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? 'Other devices can fetch tiles from this device'
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: 'Start serving cached tiles to nearby devices',
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),
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secondary: Icon(
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provider.isServerRunning
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? Icons.wifi_tethering
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: Icons.wifi_tethering_off,
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),
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value: provider.isServerRunning,
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onChanged: (_) => provider.toggleServer(),
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),
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// My cached maps
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if (provider.localStyles.isNotEmpty) ...[
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const Divider(),
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 8),
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child: Text(
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'My Cached Maps',
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style: Theme.of(context).textTheme.titleSmall,
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),
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),
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...provider.localStyles.map((style) {
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final isShowing =
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provider.coverageStyle?.hash == style.hash;
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return ListTile(
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dense: true,
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leading: const Icon(Icons.map, size: 20),
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title: Text(style.displayName),
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subtitle: Text(
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'${_formatNumber(style.tileCount)} tiles, '
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'${_formatBytes(style.sizeBytes)}',
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),
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trailing: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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IconButton(
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icon: Icon(
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isShowing
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? Icons.visibility
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: Icons.visibility_off,
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size: 20,
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color: isShowing
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? Colors.blue
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: null,
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),
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tooltip: isShowing
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? 'Hide on map'
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: 'Show on map',
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onPressed: () {
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provider.showCoverage(style);
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},
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),
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IconButton(
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icon: const Icon(Icons.delete_outline,
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size: 20),
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tooltip: AppLocalizations.of(context)!.delete,
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onPressed: () => _confirmDeleteStyle(
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context, provider, style),
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),
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],
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),
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);
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}),
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],
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// Peers section
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const Divider(),
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 8),
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child: Row(
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children: [
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Expanded(
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child: Text(
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'Nearby Devices',
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style: Theme.of(context).textTheme.titleSmall,
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),
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),
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if (provider.isFetchingCatalogs)
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const SizedBox(
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width: 16,
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height: 16,
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child:
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CircularProgressIndicator(strokeWidth: 2),
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)
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else
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IconButton(
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icon: const Icon(Icons.refresh, size: 20),
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tooltip: AppLocalizations.of(context)!.refresh,
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onPressed: () =>
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provider.refreshPeerCatalogs(),
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),
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IconButton(
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icon: const Icon(Icons.add, size: 20),
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tooltip: AppLocalizations.of(context)!.addPeerManually,
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onPressed: () =>
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_showAddPeerDialog(context, provider),
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),
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],
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),
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),
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if (provider.discoveredPeers.isEmpty)
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 8),
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child: Text(
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'No peers found on the local network.\n'
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'Make sure other devices have tile sharing enabled.',
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style: Theme.of(context)
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.textTheme
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.bodySmall
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?.copyWith(
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color: Theme.of(context)
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.colorScheme
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.onSurface
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.withValues(alpha: 0.6),
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),
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),
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),
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// Peer catalogs — show each peer and their available styles
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...provider.peerCatalogs.map((catalog) => _buildPeerCard(
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context, provider, catalog)),
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// Peers without catalogs yet (just discovered, not queried)
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...provider.discoveredPeers
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.where((peer) => !provider.peerCatalogs
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.any((c) => c.peer == peer))
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.map((peer) => ListTile(
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leading: const Icon(Icons.devices),
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title: Text(peer.ipAddress),
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subtitle: Text(AppLocalizations.of(context)!.fetchingCatalog),
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trailing: IconButton(
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icon: const Icon(
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Icons.remove_circle_outline,
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size: 20),
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onPressed: () =>
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provider.removePeer(peer),
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),
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)),
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|
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// Sync progress
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if (provider.isSyncing || provider.syncStatus.isNotEmpty) ...[
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const Divider(),
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if (provider.isSyncing)
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LinearProgressIndicator(
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value: provider.syncProgress > 0
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? provider.syncProgress
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: null,
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),
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 8),
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child: Row(
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children: [
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Expanded(
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child: Text(
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provider.syncStatus,
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style: Theme.of(context).textTheme.bodySmall,
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),
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),
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if (provider.isSyncing)
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TextButton(
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onPressed: () => provider.cancelSync(),
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child: Text(AppLocalizations.of(context)!.cancel),
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),
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],
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),
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),
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],
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],
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);
|
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},
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);
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},
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);
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},
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);
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}
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|
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Widget _buildPeerCard(
|
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BuildContext context,
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OfflineTilesProvider provider,
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PeerCatalog catalog,
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|
) {
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return Card(
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|
margin: const EdgeInsets.symmetric(vertical: 4),
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child: Padding(
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|
padding: const EdgeInsets.all(12),
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child: Column(
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|
crossAxisAlignment: CrossAxisAlignment.start,
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|
children: [
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|
Row(
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|
children: [
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const Icon(Icons.devices, size: 18),
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const SizedBox(width: 8),
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|
Expanded(
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|
child: Text(
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|
catalog.peer.ipAddress,
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|
style: Theme.of(context).textTheme.titleSmall,
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|
),
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|
),
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|
IconButton(
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|
icon: const Icon(Icons.remove_circle_outline, size: 18),
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|
onPressed: () => provider.removePeer(catalog.peer),
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|
visualDensity: VisualDensity.compact,
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|
),
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|
],
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|
),
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|
if (catalog.styles.isEmpty)
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Padding(
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|
padding: const EdgeInsets.only(top: 4),
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|
child: Text(
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|
'No cached tiles on this device',
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|
style: Theme.of(context).textTheme.bodySmall?.copyWith(
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|
color: Theme.of(context)
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|
.colorScheme
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|
.onSurface
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|
.withValues(alpha: 0.6),
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|
),
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|
),
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|
),
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|
...catalog.styles.map((style) {
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|
// Check if we already have this style locally
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|
final localMatch = provider.localStyles
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|
.where((s) => s.hash == style.hash);
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|
final localCount =
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|
localMatch.isNotEmpty ? localMatch.first.tileCount : 0;
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|
final missingTiles = style.tileCount - localCount;
|
|
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|
return ListTile(
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|
dense: true,
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|
contentPadding: EdgeInsets.zero,
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|
leading: const Icon(Icons.map_outlined, size: 20),
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|
title: Text(style.displayName),
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|
subtitle: Text(
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|
'${_formatNumber(style.tileCount)} tiles, '
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|
'${_formatBytes(style.sizeBytes)}'
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|
'${localCount > 0 ? ' (you have ${_formatNumberInline(localCount)})' : ''}',
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|
),
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|
trailing: missingTiles > 0
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|
? TextButton.icon(
|
|
onPressed: provider.isSyncing
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|
? null
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|
: () => provider.syncStyleFromPeers(style),
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|
icon: const Icon(Icons.download, size: 16),
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|
label: Text(
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|
missingTiles == style.tileCount
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|
? 'Get all'
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|
: '+${_formatNumber(missingTiles)}',
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|
),
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|
)
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|
: const Icon(Icons.check_circle,
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|
color: Colors.green, size: 20),
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|
);
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|
}),
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|
],
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),
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),
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|
);
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|
}
|
|
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String _formatNumberInline(int n) {
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if (n < 1000) return '$n';
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|
if (n < 1000000) return '${(n / 1000).toStringAsFixed(1)}K';
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|
return '${(n / 1000000).toStringAsFixed(1)}M';
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|
}
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|
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|
void _fitMapToPolygons(OfflineTilesProvider provider) {
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|
if (provider.polygons.isEmpty) return;
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|
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|
var minLat = 90.0, maxLat = -90.0;
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|
var minLng = 180.0, maxLng = -180.0;
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|
for (final poly in provider.polygons) {
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|
for (final p in poly) {
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|
if (p.latitude < minLat) minLat = p.latitude;
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|
if (p.latitude > maxLat) maxLat = p.latitude;
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|
if (p.longitude < minLng) minLng = p.longitude;
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|
if (p.longitude > maxLng) maxLng = p.longitude;
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|
}
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|
}
|
|
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|
_mapController.fitCamera(
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|
CameraFit.bounds(
|
|
bounds: LatLngBounds(
|
|
LatLng(minLat, minLng),
|
|
LatLng(maxLat, maxLng),
|
|
),
|
|
padding: const EdgeInsets.all(50),
|
|
),
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|
);
|
|
}
|
|
|
|
void _showAddPeerDialog(
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|
BuildContext context, OfflineTilesProvider provider) {
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|
final controller = TextEditingController();
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|
showDialog(
|
|
context: context,
|
|
builder: (context) => AlertDialog(
|
|
title: Text(AppLocalizations.of(context)!.addPeer),
|
|
content: TextField(
|
|
controller: controller,
|
|
decoration: const InputDecoration(
|
|
labelText: 'IP Address',
|
|
hintText: '192.168.1.100',
|
|
),
|
|
keyboardType: TextInputType.number,
|
|
autofocus: true,
|
|
onSubmitted: (value) {
|
|
if (value.trim().isNotEmpty) {
|
|
provider.addManualPeer(value.trim());
|
|
Navigator.pop(context);
|
|
}
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|
},
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|
),
|
|
actions: [
|
|
TextButton(
|
|
onPressed: () => Navigator.pop(context),
|
|
child: Text(AppLocalizations.of(context)!.cancel),
|
|
),
|
|
TextButton(
|
|
onPressed: () {
|
|
final ip = controller.text.trim();
|
|
if (ip.isNotEmpty) {
|
|
provider.addManualPeer(ip);
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|
Navigator.pop(context);
|
|
}
|
|
},
|
|
child: Text(AppLocalizations.of(context)!.add),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
void _confirmDeleteStyle(
|
|
BuildContext context,
|
|
OfflineTilesProvider provider,
|
|
StyleInfo style,
|
|
) {
|
|
showDialog(
|
|
context: context,
|
|
builder: (dialogContext) => AlertDialog(
|
|
title: Text(AppLocalizations.of(context)!.deleteStyleConfirm(style.displayName)),
|
|
content: Text(
|
|
'${_formatNumber(style.tileCount)} tiles, '
|
|
'${_formatBytes(style.sizeBytes)} will be deleted.',
|
|
),
|
|
actions: [
|
|
TextButton(
|
|
onPressed: () => Navigator.pop(dialogContext),
|
|
child: Text(AppLocalizations.of(context)!.cancel),
|
|
),
|
|
TextButton(
|
|
onPressed: () {
|
|
provider.deleteStyle(style);
|
|
Navigator.pop(dialogContext);
|
|
},
|
|
child:
|
|
Text(AppLocalizations.of(context)!.delete, style: const TextStyle(color: Colors.red)),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
void _confirmClearCache(OfflineTilesProvider provider) {
|
|
showDialog(
|
|
context: context,
|
|
builder: (context) => AlertDialog(
|
|
title: Text(AppLocalizations.of(context)!.clearOfflineCache),
|
|
content: Text(
|
|
'This will delete ${_formatBytes(provider.cacheSizeBytes)} of cached tiles.'),
|
|
actions: [
|
|
TextButton(
|
|
onPressed: () => Navigator.pop(context),
|
|
child: Text(AppLocalizations.of(context)!.cancel),
|
|
),
|
|
TextButton(
|
|
onPressed: () {
|
|
provider.clearCache();
|
|
Navigator.pop(context);
|
|
},
|
|
child:
|
|
Text(AppLocalizations.of(context)!.delete, style: const TextStyle(color: Colors.red)),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
String _formatBytes(int bytes) {
|
|
if (bytes < 1024) return '$bytes B';
|
|
if (bytes < 1024 * 1024) return '${(bytes / 1024).toStringAsFixed(1)} KB';
|
|
if (bytes < 1024 * 1024 * 1024) {
|
|
return '${(bytes / (1024 * 1024)).toStringAsFixed(1)} MB';
|
|
}
|
|
return '${(bytes / (1024 * 1024 * 1024)).toStringAsFixed(1)} GB';
|
|
}
|
|
|
|
String _formatNumber(int n) {
|
|
if (n < 1000) return '$n';
|
|
if (n < 1000000) return '${(n / 1000).toStringAsFixed(1)}K';
|
|
return '${(n / 1000000).toStringAsFixed(1)}M';
|
|
}
|
|
}
|
|
|
|
class _ZoomSelector extends StatelessWidget {
|
|
final String label;
|
|
final int value;
|
|
final ValueChanged<int> onChanged;
|
|
|
|
const _ZoomSelector({
|
|
required this.label,
|
|
required this.value,
|
|
required this.onChanged,
|
|
});
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Row(
|
|
children: [
|
|
Text(label, style: Theme.of(context).textTheme.bodySmall),
|
|
const SizedBox(width: 8),
|
|
Expanded(
|
|
child: Slider(
|
|
value: value.toDouble(),
|
|
min: 0,
|
|
max: 19,
|
|
divisions: 19,
|
|
label: '$value',
|
|
onChanged: (v) => onChanged(v.round()),
|
|
),
|
|
),
|
|
SizedBox(
|
|
width: 24,
|
|
child: Text(
|
|
'$value',
|
|
style: Theme.of(context).textTheme.bodyMedium?.copyWith(
|
|
fontWeight: FontWeight.bold,
|
|
),
|
|
textAlign: TextAlign.center,
|
|
),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
}
|