fix: flutter_map latlng bounds assertion et overflow du dropdown des depôts

em2rp/lib/views/widgets/common/route_map_widget.dart

@@ -53,20 +53,9 @@ class RouteMapWidget extends StatelessWidget {
   }
 
   LatLngBounds? _computeBounds(List<List<LatLng>> allPoints) {
-    double? minLat, maxLat, minLng, maxLng;
+    final flat = allPoints.expand((e) => e).toList();
-    for (final pts in allPoints) {
+    if (flat.isEmpty) return null;
-      for (final p in pts) {
+    return LatLngBounds.fromPoints(flat);
-        minLat = minLat == null ? p.latitude : p.latitude < minLat ? p.latitude : minLat;
-        maxLat = maxLat == null ? p.latitude : p.latitude > maxLat ? p.latitude : maxLat;
-        minLng = minLng == null ? p.longitude : p.longitude < minLng ? p.longitude : minLng;
-        maxLng = maxLng == null ? p.longitude : p.longitude > maxLng ? p.longitude : maxLng;
-      }
-    }
-    if (minLat == null) return null;
-    return LatLngBounds(
-      LatLng(minLat - 0.02, minLng! - 0.02),
-      LatLng(maxLat! + 0.02, maxLng! + 0.02),
-    );
   }
 
   @override

em2rp/lib/views/widgets/event_form/travel_cost_dialog.dart

@@ -303,6 +303,7 @@ class _TravelCostDialogState extends State<TravelCostDialog> {
         else
           DropdownButtonFormField<DepotModel>(
             value: _selectedDepot,
+            isExpanded: true,
             decoration: const InputDecoration(
               border: OutlineInputBorder(),
               prefixIcon: Icon(Icons.warehouse_outlined),
@@ -310,17 +311,9 @@ class _TravelCostDialogState extends State<TravelCostDialog> {
             items: _depots
                 .map((d) => DropdownMenuItem(
                       value: d,
-                      child: Column(
+                      child: Text(
-                        crossAxisAlignment: CrossAxisAlignment.start,
+                        '${d.name} — ${d.address}',
-                        mainAxisSize: MainAxisSize.min,
+                        overflow: TextOverflow.ellipsis,
-                        children: [
-                          Text(d.name,
-                              style: const TextStyle(fontWeight: FontWeight.w600)),
-                          Text(d.address,
-                              style: const TextStyle(
-                                  fontSize: 11, color: Colors.grey),
-                              overflow: TextOverflow.ellipsis),
-                        ],
                       ),
                     ))
                 .toList(),
@@ -337,6 +330,7 @@ class _TravelCostDialogState extends State<TravelCostDialog> {
         else
           DropdownButtonFormField<VehicleModel>(
             value: _selectedVehicle,
+            isExpanded: true,
             decoration: const InputDecoration(
               border: OutlineInputBorder(),
               prefixIcon: Icon(Icons.directions_car_outlined),
@@ -345,7 +339,9 @@ class _TravelCostDialogState extends State<TravelCostDialog> {
                 .map((v) => DropdownMenuItem(
                       value: v,
                       child: Text(
-                          '${v.name} — ${v.consumptionPer100km} ${v.consumptionUnit} | Cat. péage ${v.tollCategoryId}'),
+                        '${v.name} — ${v.consumptionPer100km} ${v.consumptionUnit} | Cat. péage ${v.tollCategoryId}',
+                        overflow: TextOverflow.ellipsis,
+                      ),
                     ))
                 .toList(),
             onChanged: (v) => setState(() => _selectedVehicle = v),