Add InsertControl method to Window and WindowContentManager

Author: nickprotop

SharpConsoleUI/Window.cs

@@ -924,6 +924,18 @@ public void AddControl(IWindowControl content)
 				GoToBottom();
 		}
 	}
+	/// <summary>
+	/// Inserts a control at the specified index.
+	/// </summary>
+	public void InsertControl(int index, IWindowControl content)
+	{
+		lock (_lock)
+		{
+			_contentManager.InsertControl(_controls, _interactiveContents, index, content, this);
+			RenderAndGetVisibleContent();
+		}
+	}
+
 	/// <summary>
 	/// Removes all controls from the window.
 	/// </summary>

SharpConsoleUI/Windows/WindowContentManager.cs

@@ -80,6 +80,34 @@ public void AddControl(
 			_invalidateCallback();
 		}
 
+		/// <summary>
+		/// Inserts a control at the specified index.
+		/// </summary>
+		public void InsertControl(
+			List<IWindowControl> controls,
+			List<IInteractiveControl> interactiveControls,
+			int index,
+			IWindowControl control,
+			IContainer container)
+		{
+			if (control == null)
+				throw new ArgumentNullException(nameof(control));
+
+			_logService?.LogDebug($"Control inserted into window '{_getWindowTitle()}' at index {index}: {control.GetType().Name}", "Window");
+
+			control.Container = container;
+			controls.Insert(index, control);
+
+			if (control is IInteractiveControl interactiveControl)
+			{
+				interactiveControls.Add(interactiveControl);
+			}
+
+			InvalidationManager.Instance.RegisterControl(control);
+			_invalidateLayoutCallback();
+			_invalidateCallback();
+		}
+
 		/// <summary>
 		/// Removes a control from the control list.
 		/// </summary>