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load cameras on startup

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stopflock
2025-08-13 00:34:50 -05:00
parent ff9be33142
commit 81b3172efc
2 changed files with 58 additions and 42 deletions
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lib/widgets/map_view.dart
+52 -40
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@@ -106,6 +106,10 @@ class _MapViewState extends State<MapView> {
// Set up camera overlay caching
_cameraProvider = CameraProviderWithCache.instance;
_cameraProvider.addListener(_onCamerasUpdated);
// Ensure initial overlays are fetched
WidgetsBinding.instance.addPostFrameCallback((_) {
_refreshCamerasFromProvider();
});
}
@override
@@ -206,45 +210,54 @@ class _MapViewState extends State<MapView> {
}
final zoom = _safeZoom();
// Fetch cached cameras for current map bounds, but only if controller is ready
LatLngBounds? mapBounds;
try {
mapBounds = _controller.camera.visibleBounds;
} catch (_) {
mapBounds = null;
}
final cameras = (mapBounds != null)
? _cameraProvider.getCachedCamerasForBounds(mapBounds)
: <OsmCameraNode>[];
// Camera markers first, then GPS dot, so blue dot is always on top
final markers = <Marker>[
...cameras
.where((n) => n.coord.latitude != 0 || n.coord.longitude != 0)
.where((n) => n.coord.latitude.abs() <= 90 && n.coord.longitude.abs() <= 180)
.map((n) => Marker(
point: n.coord,
width: 24,
height: 24,
child: _CameraMapMarker(node: n, mapController: _controller),
)),
if (_currentLatLng != null)
Marker(
point: _currentLatLng!,
width: 16,
height: 16,
child: const Icon(Icons.my_location, color: Colors.blue),
),
];
// Fetch cached cameras for current map bounds (using Consumer so overlays redraw instantly)
Widget cameraLayers = Consumer<CameraProviderWithCache>(
builder: (context, cameraProvider, child) {
LatLngBounds? mapBounds;
try {
mapBounds = _controller.camera.visibleBounds;
} catch (_) {
mapBounds = null;
}
final cameras = (mapBounds != null)
? cameraProvider.getCachedCamerasForBounds(mapBounds)
: <OsmCameraNode>[];
final markers = <Marker>[
...cameras
.where((n) => n.coord.latitude != 0 || n.coord.longitude != 0)
.where((n) => n.coord.latitude.abs() <= 90 && n.coord.longitude.abs() <= 180)
.map((n) => Marker(
point: n.coord,
width: 24,
height: 24,
child: _CameraMapMarker(node: n, mapController: _controller),
)),
if (_currentLatLng != null)
Marker(
point: _currentLatLng!,
width: 16,
height: 16,
child: const Icon(Icons.my_location, color: Colors.blue),
),
];
final overlays = <Polygon>[
if (session != null && session.target != null)
_buildCone(session.target!, session.directionDegrees, zoom),
...cameras
.where((n) => n.hasDirection && n.directionDeg != null)
.where((n) => n.coord.latitude != 0 || n.coord.longitude != 0)
.where((n) => n.coord.latitude.abs() <= 90 && n.coord.longitude.abs() <= 180)
.map((n) => _buildCone(n.coord, n.directionDeg!, zoom)),
];
final overlays = <Polygon>[
if (session != null && session.target != null)
_buildCone(session.target!, session.directionDegrees, zoom),
...cameras
.where((n) => n.hasDirection && n.directionDeg != null)
.where((n) => n.coord.latitude != 0 || n.coord.longitude != 0)
.where((n) => n.coord.latitude.abs() <= 90 && n.coord.longitude.abs() <= 180)
.map((n) => _buildCone(n.coord, n.directionDeg!, zoom)),
];
return Stack(
children: [
PolygonLayer(polygons: overlays),
MarkerLayer(markers: markers),
],
);
}
);
return Stack(
children: [
@@ -294,8 +307,7 @@ class _MapViewState extends State<MapView> {
}
}
),
PolygonLayer(polygons: overlays),
MarkerLayer(markers: markers),
cameraLayers,
// Built-in scale bar from flutter_map
Scalebar(
alignment: Alignment.bottomLeft,