Posibility to Disable Snaplines via AttachedProperty

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Extensions/SnaplinePlacementBehavior.cs

@@ -19,16 +19,11 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Windows;
-using ICSharpCode.WpfDesign.Extensions;
-using System.ComponentModel;
 using ICSharpCode.WpfDesign.Adorners;
 using System.Windows.Controls;
 using System.Windows.Media;
 using System.Windows.Shapes;
-using System.Windows.Automation.Peers;
-using System.Windows.Controls.Primitives;
 using System.Diagnostics;
 using System.Windows.Input;
 
@@ -36,6 +31,20 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 {
 	public class SnaplinePlacementBehavior : RasterPlacementBehavior
 	{
+		public static bool GetDisableSnaplines(DependencyObject obj)
+		{
+			return (bool)obj.GetValue(DisableSnaplinesProperty);
+		}
+
+		public static void SetDisableSnaplines(DependencyObject obj, bool value)
+		{
+			obj.SetValue(DisableSnaplinesProperty, value);
+		}
+
+		public static readonly DependencyProperty DisableSnaplinesProperty =
+			DependencyProperty.RegisterAttached("DisableSnaplines", typeof(bool), typeof(SnaplinePlacementBehavior), new PropertyMetadata(false));
+
+		
 		AdornerPanel adornerPanel;
 		Canvas surface;
 		List<Snapline> horizontalMap;
@@ -217,7 +226,8 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 			AddLines(containerRect, 0, false);
 			
 			foreach (var item in AllDesignItems() /* ExtendedItem.ContentProperty.CollectionElements */
-				.Except(operation.PlacedItems.Select(f => f.Item))) {
+			         .Except(operation.PlacedItems.Select(f => f.Item))
+			         .Where(x=>!GetDisableSnaplines(x.View))) {
 				if (item != null) {
 					var bounds = GetPosition(operation, item);
 					
@@ -376,4 +386,3 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 		}
 	}
 }
-