/*
 * Greenshot - a free and open source screenshot tool
 * Copyright (C) 2007-2010  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;
using System.Drawing;

namespace Greenshot.Helpers {
	/// <summary>
	/// Description of ImageHelper.
	/// </summary>
	public class ImageHelper {
		private static log4net.ILog LOG = log4net.LogManager.GetLogger(typeof(ImageHelper));

		private ImageHelper() {
		}

		/// <summary>
		/// Crops the image to the specified rectangle
		/// </summary>
		/// <param name="image">Image to crop</param>
		/// <param name="cropRectangle">Rectangle with bitmap coordinates, will be "intersected" to the bitmap</param>
		public static void Crop(ref Image image, ref Rectangle cropRectangle) {
			Image returnImage = null;
			if (image != null && image is Bitmap) {
				cropRectangle.Intersect(new Rectangle(0,0, image.Width, image.Height));
				returnImage = (image as Bitmap).Clone(cropRectangle, image.PixelFormat);
				image.Dispose();
				image = returnImage;
			} else {
				LOG.Warn("Can't crop a null image!");
			}
		}
	}
}