Added some missing files.

git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1603 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4

Greenshot/Helpers/GeometryHelper.cs

@@ -0,0 +1,63 @@
+/*
+ * Greenshot - a free and open source screenshot tool
+ * Copyright (C) 2007-2011  Thomas Braun, Jens Klingen, Robin Krom
+ * 
+ * For more information see: http://getgreenshot.org/
+ * The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/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;
+
+namespace Greenshot.Helpers {
+	/// <summary>
+	/// Description of GeometryHelper.
+	/// </summary>
+	public static class GeometryHelper {
+		/// <summary>
+		/// Finds the distance between two points on a 2D surface.
+		/// </summary>
+		/// <param name="x1">The point on the x-axis of the first point</param>
+		/// <param name="x2">The point on the x-axis of the second point</param>
+		/// <param name="y1">The point on the y-axis of the first point</param>
+		/// <param name="y2">The point on the y-axis of the second point</param>
+		/// <returns></returns>
+		public static int Distance2D(int x1, int y1, int x2, int y2) {
+			//Our end result
+			int result = 0;
+			//Take x2-x1, then square it
+			double part1 = Math.Pow((x2 - x1), 2);
+			//Take y2-y1, then square it
+			double part2 = Math.Pow((y2 - y1), 2);
+			//Add both of the parts together
+			double underRadical = part1 + part2;
+			//Get the square root of the parts
+			result = (int)Math.Sqrt(underRadical);
+			//Return our result
+			return result;
+		}
+		
+		/// <summary>
+		/// Calculates the angle of a line defined by two points on a 2D surface.
+		/// </summary>
+		/// <param name="x1">The point on the x-axis of the first point</param>
+		/// <param name="x2">The point on the x-axis of the second point</param>
+		/// <param name="y1">The point on the y-axis of the first point</param>
+		/// <param name="y2">The point on the y-axis of the second point</param>
+		/// <returns></returns>
+		public static double Angle2D(int x1, int y1, int x2, int y2) {
+			return Math.Atan2(y2 - y1, x2 - x1) * 180 / Math.PI;
+		}
+	}
+}