Fixed merge layers max size

PixiEditor/Models/DataHolders/PixelSize.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PixiEditor.Models.DataHolders
+{
+    public struct PixelSize
+    {
+        public int Width { get; set; }
+        public int Height { get; set; }
+
+        public PixelSize(int width, int height)
+        {
+            Width = width;
+            Height = height;
+        }
+    }
+}

PixiEditor/Models/Layers/LayerHelper.cs

@@ -57,7 +57,7 @@ namespace PixiEditor.Models.Layers
             }
         }
 
-        public static Layer MergeWith(this Layer thisLayer, Layer otherLayer, string newName, Vector documentsSize)
+        public static Layer MergeWith(this Layer thisLayer, Layer otherLayer, string newName, PixelSize documentSize)
         {
             Int32Rect thisRect = new(thisLayer.OffsetX, thisLayer.OffsetY, thisLayer.Width, thisLayer.Height);
             Int32Rect otherRect = new(otherLayer.OffsetX, otherLayer.OffsetY, otherLayer.Width, otherLayer.Height);
@@ -68,7 +68,9 @@ namespace PixiEditor.Models.Layers
 
             Layer mergedLayer = new Layer(newName, mergedBitmap)
             {
-                Offset = new Thickness(combined.X, combined.Y, 0, 0)
+                Offset = new Thickness(combined.X, combined.Y, 0, 0),
+                MaxWidth = documentSize.Width,
+                MaxHeight = documentSize.Height
             };
 
             return mergedLayer;
@@ -76,7 +78,7 @@ namespace PixiEditor.Models.Layers
 
         public static Layer MergeWith(this Layer thisLayer, Layer otherLayer, string newName, int documentWidth, int documentHeight)
         {
-            return MergeWith(thisLayer, otherLayer, newName, new Vector(documentWidth, documentHeight));
+            return MergeWith(thisLayer, otherLayer, newName, new PixelSize(documentWidth, documentHeight));
         }
     }
 }