Show vehicle and texture info when a browser entry is picked

The General and About texture tabs only ever described the selected consist car,
so clicking a vehicle in the list told the user nothing about it.

StarterNG/Domain/VehicleInfo.cs

@@ -22,6 +22,10 @@ public sealed class VehicleInfo
     public string? CategoryOf(Dynamic car) =>
         TextureFor(car) is { } t ? CategoryOf(t) : null;
 
+    public VehiclePhysics? PhysicsFor(VehicleTexture texture) =>
+        AppServices.Current.Physics.For(texture.Directory, texture.Model)
+        ?? AppServices.Current.Physics.For(texture.Directory, texture.Skinfile);
+
     public VehiclePhysics? PhysicsFor(Dynamic car)
     {
         string? dbModel = TextureFor(car)?.Model;

StarterNG/Views/Depot.axaml.cs

@@ -89,6 +89,8 @@ public partial class Depot : UserControl
             _db, _info, _consist, _cargo, _hand,
             RebuildConsist, _cards.RefreshMemberChrome, _browser.ShowTextureInfo);
 
+        _browser.TextureSelected = _details.ShowTexture;
+
         Dispatcher.UIThread.Post(() =>
         {
             hideArchivalCheck.IsChecked = AppServices.Current.Settings.HideArchivalVehicles;

StarterNG/Views/Depot/VehicleBrowser.cs

@@ -49,6 +49,8 @@ public sealed class VehicleBrowser
 
     public VehicleTexture? Selected { get; private set; }
 
+    public Action<VehicleTexture>? TextureSelected { get; set; }
+
     private bool _suppress;
     private bool _syncingCombos;
 
@@ -342,6 +344,11 @@ public sealed class VehicleBrowser
             miniPreview.Source = _minis.Get(_db.ResolveMiniName(texture), MiniPreviewHeight);
             addVehicleButton.IsEnabled = true;
             SyncCombosTo(texture);
+
+            // Clicking a card in the consist also selects its texture here. The
+            // detail panels then belong to that car, not to the catalogue entry.
+            if (!_syncingCombos)
+                TextureSelected?.Invoke(texture);
         }
         else
         {

StarterNG/Views/Depot/VehicleDetails.cs

@@ -122,6 +122,26 @@ public sealed class VehicleDetails
         AddConsistLoadSection();
     }
 
+    public void ShowTexture(VehicleTexture texture)
+    {
+        generalPanel.Children.Clear();
+        consistTexturePanel.Children.Clear();
+
+        var inv = CultureInfo.InvariantCulture;
+        var physics = _info.PhysicsFor(texture);
+
+        generalPanel.Children.Add(Reading($"{App.Loc["Length"]} [m]",
+            physics?.Length.ToString("0.##", inv)));
+        generalPanel.Children.Add(Reading($"{App.Loc["Mass"]} [t]",
+            physics is null ? null : (physics.Mass / 1000.0).ToString("0.#", inv)));
+        generalPanel.Children.Add(Reading($"{App.Loc["VMax"]} [km/h]",
+            physics?.VMax.ToString("0", inv)));
+        generalPanel.Children.Add(Reading(App.Loc["Model"], texture.Model));
+        generalPanel.Children.Add(Reading(App.Loc["Texture"], texture.Skinfile));
+
+        _showTextureInfo(texture, consistTexturePanel);
+    }
+
     private void BuildGeneralInfo(ConsistItem item)
     {
         var car = _consist.ActiveCar(item);