1 files changed, 92 insertions, 0 deletions
diff --git a/UVtools.Core/Operations/OperationMove.cs b/UVtools.Core/Operations/OperationMove.cs
new file mode 100644
index 0000000..bed0879
--- /dev/null
+++ b/UVtools.Core/Operations/OperationMove.cs
@@ -0,0 +1,92 @@
+using System;
+using System.Drawing;
+
+namespace UVtools.Core.Operations
+{
+    public enum Anchor : byte
+    {
+        TopLeft,    TopCenter,    TopRight,
+        MiddleLeft, MiddleCenter, MiddleRight,
+        BottomLeft, BottomCenter, BottomRight,
+        None
+    }
+
+    public class OperationMove
+    {
+        public Rectangle SrcRoi { get; set; }
+
+        private Rectangle _dstRoi = Rectangle.Empty;
+        public Rectangle DstRoi
+        {
+            get
+            {
+                if(!_dstRoi.IsEmpty) return _dstRoi;
+                CalculateDstRoi();
+
+                return _dstRoi;
+            }
+        }
+
+        public void CalculateDstRoi()
+        {
+            _dstRoi.Size = SrcRoi.Size;
+
+            switch (Anchor)
+            {
+                case Anchor.TopLeft:
+                    _dstRoi.Location = new Point(0, 0);
+                    break;
+                case Anchor.TopCenter:
+                    _dstRoi.Location = new Point((int)(ImageWidth / 2 - SrcRoi.Width / 2), 0);
+                    break;
+                case Anchor.TopRight:
+                    _dstRoi.Location = new Point((int)(ImageWidth - SrcRoi.Width), 0);
+                    break;
+                case Anchor.MiddleLeft:
+                    _dstRoi.Location = new Point(0, (int)(ImageHeight / 2 - SrcRoi.Height / 2));
+                    break;
+                case Anchor.MiddleCenter:
+                    _dstRoi.Location = new Point((int)(ImageWidth / 2 - SrcRoi.Width / 2), (int)(ImageHeight / 2 - SrcRoi.Height / 2));
+                    break;
+                case Anchor.MiddleRight:
+                    _dstRoi.Location = new Point((int)(ImageWidth - SrcRoi.Width), (int)(ImageHeight / 2 - SrcRoi.Height / 2));
+                    break;
+                case Anchor.BottomLeft:
+                    _dstRoi.Location = new Point(0, (int)(ImageHeight - SrcRoi.Height));
+                    break;
+                case Anchor.BottomCenter:
+                    _dstRoi.Location = new Point((int)(ImageWidth / 2 - SrcRoi.Width / 2), (int)(ImageHeight - SrcRoi.Height));
+                    break;
+                case Anchor.BottomRight:
+                    _dstRoi.Location = new Point((int)(ImageWidth - SrcRoi.Width), (int)(ImageHeight - SrcRoi.Height));
+                    break;
+                default:
+                    throw new ArgumentOutOfRangeException();
+            }
+
+            _dstRoi.X += MarginLeft;
+            _dstRoi.X -= MarginRight;
+            _dstRoi.Y += MarginTop;
+            _dstRoi.Y -= MarginBottom;
+        }
+
+
+        public uint ImageWidth { get; set; }
+        public uint ImageHeight { get; set; }
+
+        public Anchor Anchor { get; set; }
+
+        public int MarginLeft { get; set; } = 0;
+        public int MarginTop { get; set; } = 0;
+        public int MarginRight { get; set; } = 0;
+        public int MarginBottom { get; set; } = 0;
+
+        public OperationMove(Rectangle srcRoi, uint imageWidth = 0, uint imageHeight = 0, Anchor anchor = Anchor.MiddleCenter)
+        {
+            SrcRoi = srcRoi;
+            ImageWidth = imageWidth;
+            ImageHeight = imageHeight;
+            Anchor = anchor;
+        }
+    }
+}