change UI to UI.WinForms

Pilz.UI.WinForms/PaintingControl/PaintingObjectLayering.cs

@@ -0,0 +1,112 @@
+using Newtonsoft.Json;
+
+namespace Pilz.UI.WinForms.PaintingControl;
+
+
+public class PaintingObjectLayering
+{
+
+    // <JsonProperty(NameOf(PaintingObject))>
+    private readonly PaintingObject _PaintingObject;
+
+    [JsonIgnore]
+    public PaintingObject PaintingObject
+    {
+        get
+        {
+            return _PaintingObject;
+        }
+    }
+
+    /// <summary>
+    /// Get the current object list from the painting object.
+    /// </summary>
+    /// <returns>Returns the current object list from the painting object.</returns>
+    [JsonIgnore]
+    public PaintingObjectList ObjectList
+    {
+        get
+        {
+            return PaintingObject.Parent.PaintingObjects;
+        }
+    }
+
+    /// <summary>
+    /// Create a new instance of object layer managing.
+    /// </summary>
+    /// <param name="obj"></param>
+    public PaintingObjectLayering(PaintingObject obj)
+    {
+        _PaintingObject = obj;
+    }
+
+    /// <summary>
+    /// Moves the object by the given number of indicies.
+    /// </summary>
+    /// <param name="count">The number how many objects it should be moved.</param>
+    public void MoveObject(int count)
+    {
+        var oldIndex = ObjectList.IndexOf(PaintingObject);
+        var newIndex = oldIndex + count;
+        MoveObjectTo(newIndex);
+    }
+
+    /// <summary>
+    /// Moves the object to the new index.
+    /// </summary>
+    /// <param name="newIndex"></param>
+    public void MoveObjectTo(int newIndex)
+    {
+        var list = ObjectList;
+
+        // Check & make index valid
+        if (newIndex >= ObjectList.Count)
+            newIndex = ObjectList.Count - 1;
+        else if (newIndex < 0)
+        {
+            newIndex = 0;
+        }
+
+        // Remove object
+        list.Remove(PaintingObject);
+
+        // Insert object at new index
+        list.Insert(newIndex, PaintingObject);
+
+        // Order all objects again
+        list.Layering.OrderAll();
+    }
+
+    /// <summary>
+    /// Moves the object to the front.
+    /// </summary>
+    public void BringToTop()
+    {
+        MoveObjectTo(ObjectList.Count - 1);
+    }
+
+    /// <summary>
+    /// Moves the object to the back.
+    /// </summary>
+    public void SendToBack()
+    {
+        MoveObjectTo(0);
+    }
+
+    /// <summary>
+    /// Moves the object fordward by one 
+    /// </summary>
+    public void OneToTop()
+    {
+        MoveObject(+1);
+    }
+
+    /// <summary>
+    /// Moves the object backward by one
+    /// </summary>
+    public void OneToBack()
+    {
+        MoveObject(-1);
+    }
+
+}