Init commit

Infrastructure/MouseBehaviour.cs

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+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+using System.Windows.Interactivity;
+
+namespace StructureHelper
+{
+    public class MouseBehaviour : Behavior<Panel>
+    {
+        public static readonly DependencyProperty MouseYProperty = DependencyProperty.Register(
+            "MouseY", typeof(double), typeof(MouseBehaviour), new PropertyMetadata(default(double)));
+
+        public static readonly DependencyProperty MouseXProperty = DependencyProperty.Register(
+            "MouseX", typeof(double), typeof(MouseBehaviour), new PropertyMetadata(default(double)));
+
+        public double MouseY
+        {
+            get => (double)GetValue(MouseYProperty);
+            set => SetValue(MouseYProperty, value);
+        }
+
+        public double MouseX
+        {
+            get => (double)GetValue(MouseXProperty);
+            set => SetValue(MouseXProperty, value);
+        }
+
+        protected override void OnAttached()
+        {
+            AssociatedObject.MouseMove += AssociatedObjectOnMouseMove;
+        }
+
+        protected override void OnDetaching()
+        {
+            AssociatedObject.MouseMove -= AssociatedObjectOnMouseMove;
+        }
+
+        private void AssociatedObjectOnMouseMove(object sender, MouseEventArgs mouseEventArgs)
+        {
+            var pos = mouseEventArgs.GetPosition(AssociatedObject);
+            MouseX = pos.X;
+            MouseY = pos.Y;
+        }
+    }
+}