Mouse Gestures need to be public, to be used for a custom Extension in a custom DLL

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Services/ClickOrDragMouseGesture.cs

@@ -26,7 +26,7 @@ namespace ICSharpCode.WpfDesign.Designer.Services
 	/// <summary>
 	/// Base class for mouse gestures that should start dragging only after a minimum drag distance.
 	/// </summary>
-	abstract class ClickOrDragMouseGesture : MouseGestureBase
+	public abstract class ClickOrDragMouseGesture : MouseGestureBase
 	{
 		protected Point startPoint;
 		protected bool hasDragStarted;

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Services/DragMoveMouseGesture.cs

@@ -28,13 +28,13 @@ namespace ICSharpCode.WpfDesign.Designer.Services
 	/// Mouse gesture for moving elements inside a container or between containers.
 	/// Belongs to the PointerTool.
 	/// </summary>
-	sealed class DragMoveMouseGesture : ClickOrDragMouseGesture
+	public sealed class DragMoveMouseGesture : ClickOrDragMouseGesture
 	{
 		bool isDoubleClick;
 		bool setSelectionIfNotMoving;
 		MoveLogic moveLogic;
-		
-		internal DragMoveMouseGesture(DesignItem clickedOn, bool isDoubleClick, bool setSelectionIfNotMoving = false)
+
+		public DragMoveMouseGesture(DesignItem clickedOn, bool isDoubleClick, bool setSelectionIfNotMoving = false)
 		{
 			Debug.Assert(clickedOn != null);
 			

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Services/MouseGestureBase.cs

@@ -25,7 +25,7 @@ namespace ICSharpCode.WpfDesign.Designer.Services
 	/// <summary>
 	/// Base class for classes handling mouse gestures on the design surface.
 	/// </summary>
-	abstract class MouseGestureBase
+	public abstract class MouseGestureBase
 	{
 		/// <summary>
 		/// Checks if <paramref name="button"/> is the only button that is currently pressed.