/*
 * 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.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using Greenshot.Core;
using GreenshotPlugin.Core;

namespace GreenshotPlugin.Effects {
	/// <summary>
	/// DropShadowEffect
	/// </summary>
	[TypeConverter(typeof(EffectConverter))]
	public class DropShadowEffect : IEffect {
		public DropShadowEffect() {
			Reset();
		}

		public float Darkness {
			get;
			set;
		}

		public int ShadowSize {
			get;
			set;
		}

		public Point ShadowOffset {
			get;
			set;
		}

		public virtual void Reset() {
			Darkness = 0.6f;
			ShadowSize = 7;
			ShadowOffset = new Point(-1, -1);
		}

		public virtual Image Apply(Image sourceImage, Matrix matrix) {
			return ImageHelper.CreateShadow(sourceImage, Darkness, ShadowSize, ShadowOffset, matrix, PixelFormat.Format32bppArgb);
		}
	}
}