Show consist stats, keep empty trainsets and restore last scenery in Scenarios

#20 length/mass/vehicle/track status bar; #17 empty trainsets stay listed; #19 remember last scenery; #16 default starting vehicle; scenery i18n labels, attachments/includes/info tab, weather restore and reload.

StarterNG/Views/Scenarios.axaml

@@ -14,7 +14,7 @@
         </Grid.ColumnDefinitions>
         <Grid.RowDefinitions>
             <RowDefinition />
-            <RowDefinition Height="78" />
+            <RowDefinition Height="150" />
         </Grid.RowDefinitions>
 
         <!-- Scenery tree (left) -->
@@ -27,6 +27,14 @@
                               IsCheckedChanged="ArchivalSwitch_OnChanged"
                               OnContent="{Binding [ShowArchival], Source={x:Static starterNg:App.Loc}}"
                               OffContent="{Binding [ShowArchival], Source={x:Static starterNg:App.Loc}}" />
+                <StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal" Spacing="8" Margin="2,4,0,0">
+                    <Button Classes="Flat" FontSize="11" Padding="8,2" Cursor="Hand"
+                            Click="ReloadSceneries_OnClick"
+                            Content="{Binding [ReloadSceneries], Source={x:Static starterNg:App.Loc}}" />
+                    <Button Classes="Flat" FontSize="11" Padding="8,2" Cursor="Hand"
+                            Click="OpenSceneryDir_OnClick"
+                            Content="{Binding [OpenSceneryFolder], Source={x:Static starterNg:App.Loc}}" />
+                </StackPanel>
                 <TreeView Name="sceneryList" Classes="Compact"
                           SelectionChanged="SceneryList_OnSelectionChanged" />
             </DockPanel>
@@ -85,6 +93,10 @@
                                             VerticalAlignment="Center" Padding="10,4"
                                             Click="WeatherTimeNow_OnClick"
                                             Content="{Binding [CurrentTime], Source={x:Static starterNg:App.Loc}}" />
+                                    <Button Name="weatherRestore" Classes="Flat" Cursor="Hand"
+                                            VerticalAlignment="Center" Padding="10,4"
+                                            Click="WeatherRestore_OnClick"
+                                            Content="{Binding [RestoreWeather], Source={x:Static starterNg:App.Loc}}" />
                                 </StackPanel>
 
                                 <TextBlock Grid.Row="1" Grid.Column="0" VerticalAlignment="Center"
@@ -109,7 +121,7 @@
                                 <TextBlock Grid.Row="3" Grid.Column="0" VerticalAlignment="Center"
                                            Text="{Binding [Temperature], Source={x:Static starterNg:App.Loc}}" />
                                 <StackPanel Grid.Row="3" Grid.Column="1" Orientation="Horizontal" Spacing="8">
-                                    <Slider Name="weatherTemp" Minimum="-20" Maximum="40" Width="220"
+                                    <Slider Name="weatherTemp" Minimum="-50" Maximum="50" Width="220"
                                             TickFrequency="1" IsSnapToTickEnabled="True"
                                             ValueChanged="Weather_OnSliderChanged" />
                                     <TextBlock Name="weatherTempLabel" VerticalAlignment="Center" MinWidth="48" />
@@ -150,6 +162,13 @@
                                    FontSize="12" />
                     </ScrollViewer>
                 </TabItem>
+                <TabItem Name="infoTab" Header="{Binding [TabInfo], Source={x:Static starterNg:App.Loc}}">
+                    <ScrollViewer VerticalScrollBarVisibility="Auto">
+                        <TextBox Name="faultListBox" Margin="4" IsReadOnly="True"
+                                 AcceptsReturn="True" TextWrapping="Wrap"
+                                 FontFamily="Consolas, monospace" FontSize="12" />
+                    </ScrollViewer>
+                </TabItem>
             </TabControl>
         </Grid>
 
@@ -169,18 +188,26 @@
 
             <HeaderedContentControl Grid.Row="1" Theme="{StaticResource GroupBox}"
                                     Header="{Binding [SceneryDescription], Source={x:Static starterNg:App.Loc}}">
-                <ScrollViewer VerticalScrollBarVisibility="Auto">
-                    <TextBlock TextWrapping="Wrap" Name="sceneryDescription" />
-                </ScrollViewer>
+                <DockPanel LastChildFill="True">
+                    <StackPanel Name="attachmentsPanel" DockPanel.Dock="Bottom" Spacing="2" Margin="0,6,0,0" />
+                    <StackPanel Name="includesPanel" DockPanel.Dock="Bottom" Spacing="2" Margin="0,6,0,0" />
+                    <ScrollViewer VerticalScrollBarVisibility="Auto">
+                        <TextBlock TextWrapping="Wrap" Name="sceneryDescription" />
+                    </ScrollViewer>
+                </DockPanel>
             </HeaderedContentControl>
         </Grid>
 
         <!-- Consist preview (full-width bottom, horizontally scrollable) -->
         <HeaderedContentControl Grid.Row="1" Grid.ColumnSpan="3" Theme="{StaticResource GroupBox}"
                                 Header="{Binding [Consist], Source={x:Static starterNg:App.Loc}}">
-            <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Disabled">
-                <StackPanel Orientation="Horizontal" VerticalAlignment="Center" Name="consistStack" />
-            </ScrollViewer>
+            <DockPanel LastChildFill="True">
+                <TextBlock Name="trainStats" DockPanel.Dock="Top" FontSize="12"
+                           Opacity="0.85" Margin="0,0,0,6" TextTrimming="CharacterEllipsis" />
+                <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Disabled">
+                    <StackPanel Orientation="Horizontal" VerticalAlignment="Center" Name="consistStack" />
+                </ScrollViewer>
+            </DockPanel>
         </HeaderedContentControl>
     </Grid>
 </UserControl>

StarterNG/Views/Scenarios.axaml.cs

@@ -9,9 +9,11 @@ using System.Text.RegularExpressions;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Interactivity;
+using Avalonia.Layout;
 using Avalonia.Markup.Xaml;
 using Avalonia.Media.Imaging;
 using StarterNG.Classes;
+using StarterNG.Domain;
 
 namespace StarterNG.Views;
 
@@ -46,6 +48,7 @@ public partial class Scenarios : UserControl
         _loadingFilters = false;
 
         BuildSceneryTree();
+        RestoreLastScenery();
 
         // refresh the consist preview when the view is shown again (e.g. after
         // editing the consist in the depot). Switching tabs only toggles IsVisible
@@ -86,11 +89,15 @@ public partial class Scenarios : UserControl
             if (scenery.Archival && !showArchival)
                 continue;
 
+            bool expand = StarterNG.Classes.Settings.Instance.AutoExpandSceneryTree;
+            SceneryI18n.LoadFor(scenery, App.Loc.CurrentLangCode);
+            string label = scenery.DisplayName;
+
             if (string.IsNullOrEmpty(scenery.Group))
             {
                 topLevel.Add(new TreeViewItem
                 {
-                    Header = Path.GetFileNameWithoutExtension(scenery.Path),
+                    Header = label,
                     Tag = i
                 });
                 continue;
@@ -98,14 +105,18 @@ public partial class Scenarios : UserControl
 
             if (!groupNodes.TryGetValue(scenery.Group, out var groupNode))
             {
-                groupNode = new TreeViewItem { Header = scenery.Group, IsExpanded = false };
+                groupNode = new TreeViewItem
+                {
+                    Header = SceneryI18n.T(scenery.Group),
+                    IsExpanded = expand
+                };
                 groupNodes[scenery.Group] = groupNode;
                 topLevel.Add(groupNode);
             }
 
             groupNode.Items.Add(new TreeViewItem
             {
-                Header = Path.GetFileNameWithoutExtension(scenery.Path),
+                Header = label,
                 Tag = i
             });
         }
@@ -124,9 +135,102 @@ public partial class Scenarios : UserControl
             sceneryList.Items.Add(item);
     }
 
+    // Restores the scenery selected last session (starter.last.scenery).
+    // Like Pascal ScenariosList: fall back to the first leaf when nothing matches.
+    private void RestoreLastScenery()
+    {
+        string last = StarterNG.Classes.Settings.Instance.LastScenery;
+        string want = Path.GetFileNameWithoutExtension(last);
+
+        TreeViewItem? MatchLeaf(TreeViewItem node)
+        {
+            if (node.Tag is not int idx || idx < 0 || idx >= Sceneries.Count)
+                return null;
+            var scn = Sceneries[idx];
+            if (string.IsNullOrWhiteSpace(want)) return null;
+            if (string.Equals(scn.DisplayName, want, StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(Path.GetFileNameWithoutExtension(scn.Path), want, StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(node.Header as string, want, StringComparison.OrdinalIgnoreCase))
+                return node;
+            return null;
+        }
+
+        TreeViewItem? firstLeaf = null;
+        foreach (var obj in sceneryList.Items)
+        {
+            if (obj is not TreeViewItem node)
+                continue;
+
+            if (node.Tag is int)
+            {
+                firstLeaf ??= node;
+                if (MatchLeaf(node) is { } hit)
+                {
+                    ExpandAncestors(hit);
+                    sceneryList.SelectedItem = hit;
+                    return;
+                }
+            }
+
+            foreach (var childObj in node.Items)
+            {
+                if (childObj is not TreeViewItem { Tag: int } child)
+                    continue;
+                firstLeaf ??= child;
+                if (MatchLeaf(child) is { } hit)
+                {
+                    node.IsExpanded = true;
+                    sceneryList.SelectedItem = hit;
+                    return;
+                }
+            }
+        }
+
+        if (firstLeaf != null)
+        {
+            if (firstLeaf.Parent is TreeViewItem parent)
+                parent.IsExpanded = true;
+            sceneryList.SelectedItem = firstLeaf;
+        }
+    }
+
+    private static void ExpandAncestors(TreeViewItem node)
+    {
+        var parent = node.Parent;
+        while (parent != null)
+        {
+            if (parent is TreeViewItem tvi)
+                tvi.IsExpanded = true;
+            parent = parent.Parent;
+        }
+    }
+
+    private void PersistLastScenery(Scenery scenery)
+    {
+        // Pascal InitSCN stores the tree node text (//$n or file name).
+        string name = scenery.DisplayName;
+        if (string.Equals(StarterNG.Classes.Settings.Instance.LastScenery, name, StringComparison.OrdinalIgnoreCase))
+            return;
+        StarterNG.Classes.Settings.Instance.LastScenery = name;
+        StarterNG.Classes.Settings.Instance.Save();
+    }
+
+    private static string TrainsetListLabel(Trainset trainset) =>
+        TrainsetDisplay.CompositionText(trainset)
+        ?? string.Format(App.Loc["EmptyTrainset"], trainset.Track ?? "");
+
+    private static Control TrainsetListContent(Trainset trainset) =>
+        new Avalonia.Controls.TextBlock
+        {
+            Text = TrainsetListLabel(trainset),
+            TextTrimming = Avalonia.Media.TextTrimming.CharacterEllipsis,
+            TextWrapping = Avalonia.Media.TextWrapping.NoWrap
+        };
+
     // Fills the Vehicles list for a scenery, honouring the two filters:
     //  - "AI vehicles" off hides consists whose //$o description starts with '-';
     //  - "Drivable only" on hides decoration consists (the //$decor flag).
+    // Empty trainsets stay visible (label shows track), matching the Pascal starter.
     private void PopulateVehicleList(Scenery scn)
     {
         vehicleList.Items.Clear();
@@ -137,15 +241,13 @@ public partial class Scenarios : UserControl
         for (int i = 0; i < scn.Trainsets.Count; i++)
         {
             var trainset = scn.Trainsets[i];
-            string trainsetName = string.Join(" + ", trainset.Vehicles.Select(dyn => dyn.Name));
-            if (string.IsNullOrWhiteSpace(trainsetName)) continue; // skip empty
 
             if (IsAiTrainset(trainset) && !showAi) continue;
             if (trainset.Decor && drivableOnly) continue;
 
             var listItem = new ListBoxItem
             {
-                Content = trainsetName,
+                Content = TrainsetListContent(trainset),
                 Tag = i
             };
             // right-click: save/load to the warehouse + clipboard copy/paste
@@ -188,6 +290,7 @@ public partial class Scenarios : UserControl
         StarterNG.Classes.Settings.Instance.Save();
 
         BuildSceneryTree();
+        RestoreLastScenery();
     }
 
     // Replaces a consist's vehicles (from a loaded warehouse preset or a pasted
@@ -195,7 +298,7 @@ public partial class Scenarios : UserControl
     private void ApplyConsist(ListBoxItem item, Trainset trainset, List<Dynamic> vehicles)
     {
         trainset.Vehicles = vehicles;
-        item.Content = string.Join(" + ", trainset.Vehicles.Select(d => d.Name));
+        item.Content = TrainsetListContent(trainset);
         if (ReferenceEquals(AppState.Instance.CurrentTrainset, trainset))
             ShowConsist(trainset);
     }
@@ -212,7 +315,7 @@ public partial class Scenarios : UserControl
         foreach (var obj in vehicleList.Items)
         {
             if (obj is ListBoxItem { Tag: int vi } lbi && vi < scn.Trainsets.Count)
-                lbi.Content = string.Join(" + ", scn.Trainsets[vi].Vehicles.Select(d => d.Name));
+                lbi.Content = TrainsetListContent(scn.Trainsets[vi]);
         }
     }
 
@@ -238,6 +341,7 @@ public partial class Scenarios : UserControl
         // scenery-level info (distinct from the per-consist scenario description)
         ShowSceneryInfo(selectedScn);
         ShowWeather(selectedScn);
+        PersistLastScenery(selectedScn);
 
         // no consist chosen yet for this scenery
         missionDescription.Text = "";
@@ -250,7 +354,8 @@ public partial class Scenarios : UserControl
     // Shows the selected scenery's description (//$d) and 1:1 image (//$i).
     private void ShowSceneryInfo(Scenery scenery)
     {
-        sceneryDescription.Text = scenery.Description;
+        SceneryI18n.LoadFor(scenery, App.Loc.CurrentLangCode);
+        sceneryDescription.Text = scenery.LocalizedDescription;
 
         string? imagePath = scenery.ImagePath;
         if (imagePath is not null)
@@ -261,13 +366,154 @@ public partial class Scenarios : UserControl
             }
             catch
             {
-                sceneryImage.Source = null; // unreadable / unsupported image
+                sceneryImage.Source = null;
             }
         }
         else
         {
             sceneryImage.Source = null;
         }
+
+        PopulateAttachments(scenery);
+        PopulateIncludes(scenery);
+        PopulateFaults(scenery);
+    }
+
+    private void PopulateFaults(Scenery scenery)
+    {
+        var lines = new List<string>();
+        lines.AddRange(scenery.Faults);
+
+        var db = GameData.Instance.Vehicles;
+        foreach (var ts in scenery.Trainsets)
+        {
+            if (!ts.Parsed)
+                lines.Add($"# unparsed trainset: {ts.Name}");
+            foreach (var v in ts.Vehicles)
+            {
+                if (string.IsNullOrEmpty(v.SkinFile)) continue;
+                if (db.TextureForSkin(v.SkinFile) is null)
+                    lines.Add($"# unknown texture: {v.Name} ({v.SkinFile})");
+            }
+        }
+
+        foreach (var v in scenery.LooseVehicles)
+        {
+            if (db.TextureForSkin(v.SkinFile) is null)
+                lines.Add($"# unknown loose texture: {v.Name} ({v.SkinFile})");
+        }
+
+        faultListBox.Text = string.Join(Environment.NewLine, lines);
+        infoTab.IsVisible = lines.Count > 0 || scenery.Includes.Any(i => i.Kind != 2);
+    }
+
+    private void PopulateAttachments(Scenery scenery)
+    {
+        attachmentsPanel.Children.Clear();
+        foreach (var att in scenery.Attachments)
+        {
+            var btn = new Button
+            {
+                Content = att.Label,
+                HorizontalAlignment = HorizontalAlignment.Stretch,
+                HorizontalContentAlignment = HorizontalAlignment.Left,
+                Cursor = new Avalonia.Input.Cursor(Avalonia.Input.StandardCursorType.Hand),
+                Tag = att.FilePath
+            };
+            btn.Classes.Add("Flat");
+            ToolTip.SetTip(btn, att.FilePath);
+            btn.Click += (_, _) => OpenAttachment(att.FilePath);
+            attachmentsPanel.Children.Add(btn);
+        }
+    }
+
+    private void PopulateIncludes(Scenery scenery)
+    {
+        includesPanel.Children.Clear();
+        var opts = scenery.Includes.Where(i => i.Kind != 2).ToList();
+        if (opts.Count == 0) return;
+
+        includesPanel.Children.Add(new TextBlock
+        {
+            Text = App.Loc["OptionalIncludes"],
+            FontWeight = Avalonia.Media.FontWeight.Bold,
+            FontSize = 12,
+            Margin = new Thickness(0, 0, 0, 2)
+        });
+
+        foreach (var inc in opts)
+        {
+            var check = new CheckBox
+            {
+                Content = $"{inc.Desc} ({inc.FilePath})",
+                IsChecked = inc.Selected,
+                FontSize = 11,
+                Tag = inc
+            };
+            check.IsCheckedChanged += (_, _) =>
+            {
+                if (check.Tag is SceneryInclude s)
+                    s.Selected = check.IsChecked == true;
+            };
+            includesPanel.Children.Add(check);
+        }
+    }
+
+    private static void OpenAttachment(string relativePath)
+    {
+        string full = Path.GetFullPath(relativePath);
+        if (!File.Exists(full))
+            full = Path.GetFullPath(Path.Combine(Directory.GetCurrentDirectory(), relativePath));
+        if (!File.Exists(full))
+            return;
+        try
+        {
+            Process.Start(new ProcessStartInfo(full) { UseShellExecute = true });
+        }
+        catch { /* no handler */ }
+    }
+
+    /// <summary>Rebuild tree labels after UI / scenery i18n language change.</summary>
+    public void RebuildAfterLanguageChange()
+    {
+        string? selected = AppState.Instance.CurrentScenery?.Path;
+        BuildSceneryTree();
+        if (!string.IsNullOrEmpty(selected))
+        {
+            StarterNG.Classes.Settings.Instance.LastScenery =
+                Path.GetFileNameWithoutExtension(selected);
+            RestoreLastScenery();
+        }
+        if (AppState.Instance.CurrentScenery != null)
+            ShowSceneryInfo(AppState.Instance.CurrentScenery);
+    }
+
+    private void ReloadSceneries_OnClick(object? sender, RoutedEventArgs e)
+    {
+        string? selected = AppState.Instance.CurrentScenery?.Path;
+        GameData.Instance.ReloadSceneries();
+        Sceneries = GameData.Instance.Sceneries;
+        BuildSceneryTree();
+        if (!string.IsNullOrEmpty(selected))
+        {
+            StarterNG.Classes.Settings.Instance.LastScenery =
+                Path.GetFileNameWithoutExtension(selected);
+        }
+        RestoreLastScenery();
+    }
+
+    private void OpenSceneryDir_OnClick(object? sender, RoutedEventArgs e)
+    {
+        var scn = AppState.Instance.CurrentScenery;
+        string dir = scn != null
+            ? (Path.GetDirectoryName(Path.GetFullPath(scn.Path)) ?? "scenery")
+            : Path.GetFullPath("scenery");
+        if (!Directory.Exists(dir)) return;
+        try
+        {
+            Process.Start(new ProcessStartInfo(dir) { UseShellExecute = true });
+        }
+        catch { }
     }
 
     private void VehicleList_OnSelectionChanged(object? sender, SelectionChangedEventArgs e)
@@ -287,6 +533,7 @@ public partial class Scenarios : UserControl
         // share the selection so the depot edits this consist in place
         AppState.Instance.CurrentScenery = selectedScn;
         AppState.Instance.CurrentTrainset = selectedTrainset;
+        AppState.Instance.StartingVehicleName = TrainsetDisplay.DefaultStartingVehicle(selectedTrainset);
 
         ShowConsist(selectedTrainset);
         ShowTimetable(selectedScn, selectedTrainset);
@@ -302,7 +549,7 @@ public partial class Scenarios : UserControl
         try
         {
             weatherForm.IsEnabled = true;
-            weatherTime.SelectedTime = ParseTime(scenery.WeatherTime);
+            weatherTime.SelectedTime = ParseTime(scenery.ScenarioTimeOverride);
             weatherDay.Value = scenery.Day;
             weatherTemp.Value = scenery.Temperature;
             weatherFog.Value = System.Math.Clamp(scenery.FogEnd, 0, 10000);
@@ -326,7 +573,7 @@ public partial class Scenarios : UserControl
 
         var scn = _currentScenery;
         if (weatherTime.SelectedTime is { } t)
-            scn.WeatherTime = $"{t.Hours:D2}:{t.Minutes:D2}";
+            scn.ScenarioTimeOverride = $"{t.Hours:D2}:{t.Minutes:D2}";
         // In "Today" mode the day field is only a preview, so keep the stored day
         // at 0 (the scenery then follows the live date).
         scn.Day = _todaySeason ? 0 : (int)(weatherDay.Value ?? 0);
@@ -368,6 +615,14 @@ public partial class Scenarios : UserControl
         weatherTime.SelectedTime = new TimeSpan(now.Hour, now.Minute, 0);
     }
 
+    // Pascal actRestoreWeather — reload weather fields from the SCN snapshot.
+    private void WeatherRestore_OnClick(object? sender, RoutedEventArgs e)
+    {
+        if (_currentScenery is null) return;
+        _currentScenery.RestoreWeather();
+        ShowWeather(_currentScenery);
+    }
+
     // Parses a stored "hh:mm" string into a TimeSpan, or null when it is missing
     // or malformed (so the picker simply shows no selection).
     private static TimeSpan? ParseTime(string? text)
@@ -484,15 +739,38 @@ public partial class Scenarios : UserControl
             if (path is null)
                 continue; // fallback: no mini
 
+            int thumbH = StarterNG.Classes.Settings.Instance.LargeThumbnails ? 64 : 32;
             consistStack.Children.Add(new Image
             {
                 Source = new Bitmap(path),
-                Height = 32,
+                Height = thumbH,
                 Stretch = Avalonia.Media.Stretch.Uniform,
                 Margin = new Thickness(0)
             });
         }
-        missionDescription.Text = trainset.Description;
+        string desc = trainset.Description ?? "";
+        if (desc.TrimStart().StartsWith('-'))
+            desc = desc.TrimStart()[1..].TrimStart();
+        missionDescription.Text = SceneryI18n.T(desc);
+        UpdateTrainStats(trainset);
+    }
+
+    private void UpdateTrainStats(Trainset? trainset)
+    {
+        if (trainset is null)
+        {
+            trainStats.Text = "";
+            return;
+        }
+
+        var db = GameData.Instance.Vehicles;
+        trainStats.Text = TrainsetDisplay.FormatStats(
+            trainset,
+            car => Physics.For(car.DataFolder, db.TextureForSkin(car.SkinFile)?.Model)
+                   ?? Physics.For(car.DataFolder, car.MmdFile)
+                   ?? Physics.For(car.DataFolder, car.SkinFile),
+            App.Loc["Length"], App.Loc["Mass"], App.Loc["VehicleCount"], App.Loc["Track"],
+            car => db.TextureForSkin(car.SkinFile)?.ResolvedCategory);
     }
 
     // When returning to this view, refresh the preview of the selected consist