Code quality changes

GreenshotPlugin/Effects/MonochromeEffect.cs

@@ -0,0 +1,44 @@
+/*
+ * Greenshot - a free and open source screenshot tool
+ * Copyright (C) 2007-2016 Thomas Braun, Jens Klingen, Robin Krom
+ * 
+ * For more information see: http://getgreenshot.org/
+ * The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 1 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using GreenshotPlugin.Core;
+
+namespace GreenshotPlugin.Effects
+{
+	/// <summary>
+	/// MonochromeEffect
+	/// </summary>
+	public class MonochromeEffect : IEffect {
+		private readonly byte _threshold;
+		/// <param name="threshold">Threshold for monochrome filter (0 - 255), lower value means less black</param>
+		public MonochromeEffect(byte threshold) {
+			_threshold = threshold;
+		}
+		public void Reset() {
+			// TODO: Modify the threshold to have a default, which is reset here
+		}
+		public Image Apply(Image sourceImage, Matrix matrix) {
+			return ImageHelper.CreateMonochrome(sourceImage, _threshold);
+		}
+	}
+}