Created ImageUtils to hold CreateImageList

PCK-Studio/Classes/Utils/ImageUtils.cs

@@ -0,0 +1,34 @@
+using System.Collections.Generic;
+using System.Drawing.Drawing2D;
+using System.Drawing;
+using System.Diagnostics;
+
+namespace PckStudio.Classes.Utils
+{
+	internal class ImageUtils
+	{
+        public static IEnumerable<Image> CreateImageList(Image source, int size)
+        {
+            int img_row_count = source.Width / size;
+            int img_column_count = source.Height / size;
+            Debug.WriteLine($"{source.Width} {source.Height} {size} {size} {img_column_count} {img_row_count}");
+            for (int i = 0; i < img_column_count * img_row_count; i++)
+            {
+                int row = i / img_row_count;
+                int column = i % img_row_count;
+                Rectangle tileArea = new Rectangle(new Point(column * size, row * size), new Size(size, size));
+                Bitmap tileImage = new Bitmap(size, size);
+                using (Graphics gfx = Graphics.FromImage(tileImage))
+                {
+                    gfx.SmoothingMode = SmoothingMode.None;
+                    gfx.InterpolationMode = InterpolationMode.NearestNeighbor;
+                    gfx.PixelOffsetMode = PixelOffsetMode.HighQuality;
+
+                    gfx.DrawImage(source, new Rectangle(0, 0, size, size), tileArea, GraphicsUnit.Pixel);
+                }
+                yield return tileImage;
+            }
+            yield break;
+        }
+    }
+}