Add splash window skeleton.

.idea/.idea.Aaru/.idea/contentModel.xml

@@ -1299,11 +1299,14 @@
         <e p="ViewLocator.cs" t="Include" />
         <e p="ViewModels" t="Include">
           <e p="MainWindowViewModel.cs" t="Include" />
+          <e p="SplashWindowViewModel.cs" t="Include" />
           <e p="ViewModelBase.cs" t="Include" />
         </e>
         <e p="Views" t="Include">
           <e p="MainWindow.xaml" t="Include" />
           <e p="MainWindow.xaml.cs" t="Include" />
+          <e p="SplashWindow.xaml" t="Include" />
+          <e p="SplashWindow.xaml.cs" t="Include" />
         </e>
       </e>
       <e p="Aaru.Helpers" t="IncludeRecursive">

Aaru.Gui/Aaru.Gui.csproj

@@ -317,6 +317,12 @@
         <SubType>Designer</SubType>
       </AvaloniaResource>
       <AvaloniaResource Include="Assets\**" />
+      <AvaloniaResource Update="Views\SplashWindow.xaml">
+        <SubType>Designer</SubType>
+      </AvaloniaResource>
+      <Compile Update="Views\SplashWindow.xaml.cs">
+        <DependentUpon>SplashWindow.xaml</DependentUpon>
+      </Compile>
     </ItemGroup>
     <ItemGroup>
       <UpToDateCheckInput Remove="Views\MainWindow.xaml" />

Aaru.Gui/App.xaml.cs

@@ -8,22 +8,19 @@ namespace Aaru.Gui
 {
     public class App : Application
     {
-        public override void Initialize()
+        public override void Initialize() => AvaloniaXamlLoader.Load(this);
-        {
-            AvaloniaXamlLoader.Load(this);
-        }
 
         public override void OnFrameworkInitializationCompleted()
         {
-            if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+            if(ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
             {
-                desktop.MainWindow = new MainWindow
+                desktop.MainWindow = new SplashWindow
                 {
-                    DataContext = new MainWindowViewModel(),
+                    DataContext = new SplashWindowViewModel()
                 };
             }
 
             base.OnFrameworkInitializationCompleted();
         }
     }
-}
+}

Aaru.Gui/ViewModels/SplashWindowViewModel.cs

@@ -0,0 +1,45 @@
+using Avalonia.Threading;
+using ReactiveUI;
+
+namespace Aaru.Gui.ViewModels
+{
+    public class SplashWindowViewModel : ViewModelBase
+    {
+        double _currentProgress;
+        double _maxProgress;
+        string _message;
+
+        public string Message
+        {
+            get => _message;
+            set => this.RaiseAndSetIfChanged(ref _message, value);
+        }
+
+        public double MaxProgress
+        {
+            get => _maxProgress;
+            set => this.RaiseAndSetIfChanged(ref _maxProgress, value);
+        }
+
+        public double CurrentProgress
+        {
+            get => _currentProgress;
+            set => this.RaiseAndSetIfChanged(ref _currentProgress, value);
+        }
+
+        internal void OnOpened()
+        {
+            Message         = "Welcome to Aaru!";
+            MaxProgress     = 2;
+            CurrentProgress = 0;
+
+            Dispatcher.UIThread.Post(InitializeConsole);
+        }
+
+        void InitializeConsole()
+        {
+            CurrentProgress++;
+            Message = "Initializing console...";
+        }
+    }
+}

Aaru.Gui/Views/SplashWindow.xaml

@@ -0,0 +1,20 @@
+<Window xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="clr-namespace:Aaru.Gui.ViewModels;assembly=Aaru.Gui"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignWidth="800"
+        d:DesignHeight="450" x:Class="Aaru.Gui.Views.SplashWindow" Icon="/Assets/avalonia-logo.ico" Title="Aaru"
+        HasSystemDecorations="False">
+    <Design.DataContext>
+        <vm:SplashWindowViewModel />
+    </Design.DataContext>
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*" /> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+        <Image Source="/Assets/avalonia-logo.ico" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"
+               Grid.Row="0" />
+        <TextBlock Text="{Binding Message}" HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Row="1" />
+        <ProgressBar Maximum="{Binding MaxProgress}" Minimum="0" Value="{Binding CurrentProgress}"
+                     HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Grid.Row="2" />
+    </Grid>
+</Window>

Aaru.Gui/Views/SplashWindow.xaml.cs

@@ -0,0 +1,27 @@
+using System;
+using Aaru.Gui.ViewModels;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Aaru.Gui.Views
+{
+    public class SplashWindow : Window
+    {
+        public SplashWindow()
+        {
+            InitializeComponent();
+        #if DEBUG
+            this.AttachDevTools();
+        #endif
+        }
+
+        void InitializeComponent() => AvaloniaXamlLoader.Load(this);
+
+        protected override void OnOpened(EventArgs e)
+        {
+            base.OnOpened(e);
+            (DataContext as SplashWindowViewModel)?.OnOpened();
+        }
+    }
+}