Add WindowSettings to save/load window positions on exit/startup

StabilityMatrix.Avalonia/App.axaml.cs

@@ -42,6 +42,7 @@ using StabilityMatrix.Core.Helper.Cache;
 using StabilityMatrix.Core.Helper.Factory;
 using StabilityMatrix.Core.Models.Api;
 using StabilityMatrix.Core.Models.Packages;
+using StabilityMatrix.Core.Models.Settings;
 using StabilityMatrix.Core.Python;
 using StabilityMatrix.Core.Services;
 using StabilityMatrix.Core.Updater;
@@ -88,6 +89,19 @@ public sealed class App : Application
             mainWindow.DataContext = mainViewModel;
             mainWindow.NotificationService = notificationService;
 
+            var settingsManager = Services.GetRequiredService<ISettingsManager>();
+            var windowSettings = settingsManager.Settings.WindowSettings;
+            if (windowSettings != null)
+            {
+                mainWindow.Position = new PixelPoint(windowSettings.X, windowSettings.Y);
+                mainWindow.Width = windowSettings.Width;
+                mainWindow.Height = windowSettings.Height;    
+            }
+            else
+            {
+                mainWindow.WindowStartupLocation = WindowStartupLocation.CenterScreen;
+            }
+
             VisualRoot = mainWindow;
             StorageProvider = mainWindow.StorageProvider;
             
@@ -376,6 +390,10 @@ public sealed class App : Application
             sharedFolders.RemoveLinksForAllPackages();
         }
 
+        var mainWindow = Services.GetRequiredService<MainWindow>();
+        settingsManager.Transaction(s => s.WindowSettings = new WindowSettings(mainWindow.Width,
+            mainWindow.Height, mainWindow.Position.X, mainWindow.Position.Y));
+
         Debug.WriteLine("Start OnExit: Disposing services");
         // Dispose all services
         foreach (var disposable in Services.GetServices<IDisposable>())

StabilityMatrix.Avalonia/Views/MainWindow.axaml

@@ -12,12 +12,10 @@
                         x:CompileBindings="True"
                         Icon="/Assets/Icon.ico"
                         Width="1100"
-                        Height="850"
+                        Height="750"
                         Title="Stability Matrix"
-                        WindowStartupLocation="CenterScreen"
                         x:Class="StabilityMatrix.Avalonia.Views.MainWindow">
     
-
     <Grid RowDefinitions="Auto,Auto,*">
         <Grid Name="TitleBarHost"
               ColumnDefinitions="Auto,Auto,*,Auto"

StabilityMatrix.Core/Models/Settings/Settings.cs

@@ -22,7 +22,7 @@ public class Settings
         SharedFolderType.Lora | 
         SharedFolderType.LyCORIS;
 
-    public string? Placement { get; set; }
+    public WindowSettings? WindowSettings { get; set; }
 
     public ModelSearchOptions? ModelSearchOptions { get; set; }
     

StabilityMatrix.Core/Models/Settings/WindowSettings.cs

@@ -1,3 +1,3 @@
 namespace StabilityMatrix.Core.Models.Settings;
 
-public record WindowSettings(double Width, double Height);
+public record WindowSettings(double Width, double Height, int X, int Y);