DragAndDrop core

2026-01-18 16:33:35 +03:00
parent 9ea82af329
commit 79bdd8bc62
229 changed files with 21214 additions and 2494 deletions
--- a/Lattice.Layout.UI.WinUI/Docking/DockOverlay.cs
+++ b/Lattice.Layout.UI.WinUI/Docking/DockOverlay.cs
@@ -0,0 +1,83 @@
+using Lattice.Layout.Abstractions;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Media;
+using Windows.Foundation;
+
+namespace Lattice.Layout.UI.WinUI.Docking;
+
+/// <summary>
+/// Полупрозрачная подсветка зоны докинга.
+/// </summary>
+public sealed class DockOverlay : Control
+{
+    public static readonly DependencyProperty ZoneProperty =
+        DependencyProperty.Register(
+            nameof(Zone),
+            typeof(DockZone),
+            typeof(DockOverlay),
+            new PropertyMetadata(DockZone.Center, OnVisualPropertyChanged));
+
+    public static readonly DependencyProperty BoundsProperty =
+        DependencyProperty.Register(
+            nameof(Bounds),
+            typeof(Rect),
+            typeof(DockOverlay),
+            new PropertyMetadata(Rect.Empty, OnVisualPropertyChanged));
+
+    /// <summary>
+    /// Зона докинга, которую нужно подсветить.
+    /// </summary>
+    public DockZone Zone
+    {
+        get => (DockZone)GetValue(ZoneProperty);
+        set => SetValue(ZoneProperty, value);
+    }
+
+    /// <summary>
+    /// Прямоугольник зоны в координатах родительского контейнера.
+    /// </summary>
+    public Rect Bounds
+    {
+        get => (Rect)GetValue(BoundsProperty);
+        set => SetValue(BoundsProperty, value);
+    }
+
+    private Border? _border;
+
+    public DockOverlay()
+    {
+        IsHitTestVisible = false;
+        DefaultStyleKey = typeof(DockOverlay);
+    }
+
+    protected override void OnApplyTemplate()
+    {
+        base.OnApplyTemplate();
+        _border = GetTemplateChild("PART_Border") as Border;
+        UpdateVisual();
+    }
+
+    private static void OnVisualPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+    {
+        if (d is DockOverlay overlay)
+        {
+            overlay.UpdateVisual();
+        }
+    }
+
+    private void UpdateVisual()
+    {
+        if (_border is null)
+            return;
+
+        Canvas.SetLeft(this, Bounds.X);
+        Canvas.SetTop(this, Bounds.Y);
+        Width = Bounds.Width;
+        Height = Bounds.Height;
+
+        _border.BorderBrush = new SolidColorBrush(Microsoft.UI.Colors.DeepSkyBlue);
+        _border.BorderThickness = new Thickness(2);
+        _border.Background = new SolidColorBrush(Microsoft.UI.Colors.LightSkyBlue) { Opacity = 0.25 };
+    }
+}