Added ImageBrush

Brushes/ImageBrush.cs

@@ -0,0 +1,81 @@
+using System;
+using System.Drawing;
+
+namespace CUE.NET.Brushes
+{
+    public class ImageBrush : AbstractBrush
+    {
+        #region Enums
+
+        /// <summary>
+        /// Contains a list of available image-scale modes.
+        /// </summary>
+        public enum ScaleMode
+        {
+            /// <summary>
+            /// Stretches the image to fit inside the target rectangle.
+            /// </summary>
+            Stretch
+        }
+
+        /// <summary>
+        /// Contains a list of available image-interpolation modes.
+        /// </summary>
+        public enum InterpolationMode
+        {
+            /// <summary>
+            /// Selects the pixel closest to the target point.
+            /// </summary>
+            PixelPerfect
+        }
+
+        #endregion
+
+        #region Properties & Fields
+
+        /// <summary>
+        /// Gets or sets the image drawn by the brush. If null it will default to full transparent.
+        /// </summary>
+        public Bitmap Image { get; set; }
+
+        /// <summary>
+        /// Gets or sets the <see cref="ScaleMode" /> used to scale the image if needed.
+        /// </summary>
+        public ScaleMode ImageScaleMode { get; set; } = ScaleMode.Stretch;
+
+        /// <summary>
+        /// Gets or sets the <see cref="InterpolationMode" /> used to interpolate the image if needed.
+        /// </summary>
+        public InterpolationMode ImageInterpolationMode { get; set; } = InterpolationMode.PixelPerfect;
+
+        #endregion
+
+        #region Methods
+
+        /// <summary>
+        /// Gets the color at an specific point getting the color of the key at the given point.
+        /// </summary>
+        /// <param name="rectangle">The rectangle in which the brush should be drawn.</param>
+        /// <param name="point">The point from which the color should be taken.</param>
+        /// <returns>The color of the key at the specified point.</returns>
+        public override Color GetColorAtPoint(RectangleF rectangle, PointF point)
+        {
+            if (Image == null || Image.Width == 0 || Image.Height == 0)
+                return Color.Transparent;
+
+            //TODO DarthAffe 16.03.2016: Refactor to allow more scale-/interpolation-modes
+            float scaleX = Image.Width / rectangle.Width;
+            float scaleY = Image.Height / rectangle.Height;
+
+            int x = (int)(point.X * scaleX);
+            int y = (int)(point.Y * scaleY);
+
+            x = Math.Max(0, Math.Min(x, Image.Width - 1));
+            y = Math.Max(0, Math.Min(y, Image.Height - 1));
+
+            return Image.GetPixel(x, y);
+        }
+
+        #endregion
+    }
+}