DragAndDrop core

Lattice.IDE/MainWindow.xaml.cs

@@ -0,0 +1,64 @@
+using Lattice.Core.Docking.Engine;
+using Lattice.Core.Docking.Models;
+using Lattice.IDE.Controls;
+using Lattice.Themes;
+using Microsoft.UI.Xaml;
+// Ïðåäïîëîæèì, ÷òî VS2026Theme òîæå ðåàëèçîâàí àíàëîãè÷íî Fluent
+// using Lattice.Themes.VisualStudio2026; 
+
+namespace Lattice.IDE;
+
+public sealed partial class MainWindow : Window
+{
+    private LayoutManager _manager;
+
+    public MainWindow()
+    {
+        this.InitializeComponent();
+        WindowTracker.Register(this);
+        SystemBackdrop = new Microsoft.UI.Xaml.Media.MicaBackdrop();
+        InitLattice();
+    }
+
+    private void InitLattice()
+    {
+        _manager = new LayoutManager();
+
+        // Ñîçäàåì êîíòåíò íà îñíîâå XAML UserControls
+        var solutionExplorer = new DemoContent(
+            "sln",
+            "Solution Explorer",
+            new SolutionExplorerView()
+        );
+
+        var editor = new DemoContent(
+            "code_01",
+            "Program.cs",
+            new EditorView()
+        );
+
+        // Ñîáèðàåì äåðåâî (êàê ðàíüøå)
+        var leftLeaf = new DockLeaf();
+        leftLeaf.AddContent(solutionExplorer);
+
+        var centerLeaf = new DockLeaf()
+        {
+            TabPlacement = TabPlacement.Top,
+        };
+        centerLeaf.AddContent(editor);
+
+        var rootGroup = new DockGroup(leftLeaf, centerLeaf, SplitDirection.Horizontal)
+        {
+            SplitRatio = 0.25
+        };
+
+        _manager.SetRoot(rootGroup);
+        DockHost.Manager = _manager;
+    }
+
+    private void SetFluentTheme(object sender, RoutedEventArgs e) =>
+        ThemeManager.Current.ApplyTheme(new FluentThemePack());
+
+    private void SetVSTheme(object sender, RoutedEventArgs e) =>
+        ThemeManager.Current.ApplyTheme(new VS2026ThemePack());
+}