/*
 * 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.Runtime.Serialization;
using Greenshot.Drawing.Fields;
using Greenshot.Helpers;
using Greenshot.Plugin.Drawing;
using GreenshotPlugin.Interfaces.Drawing;

namespace Greenshot.Drawing {
	/// <summary>
	/// Description of CropContainer.
	/// </summary>
	public class CropContainer : DrawableContainer {
		public CropContainer(Surface parent) : base(parent) {
			Init();
		}

		protected override void OnDeserialized(StreamingContext streamingContext)
		{
			base.OnDeserialized(streamingContext);
			Init();
		}

		private void Init()
		{
			CreateDefaultAdorners();
		}
		protected override void InitializeFields() {
			AddField(GetType(), FieldType.FLAGS, FieldFlag.CONFIRMABLE);
		}

		public override void Invalidate() {
			_parent?.Invalidate();
		}

		/// <summary>
		/// We need to override the DrawingBound, return a rectangle in the size of the image, to make sure this element is always draw
		/// (we create a transparent brown over the complete picture)
		/// </summary>
		public override Rectangle DrawingBounds => new Rectangle(0,0,_parent?.Width??0, _parent?.Height ?? 0);

		public override void Draw(Graphics g, RenderMode rm) {
			if (_parent == null)
			{
				return;
			}
			using (Brush cropBrush = new SolidBrush(Color.FromArgb(100, 150, 150, 100))) {
				Rectangle cropRectangle = GuiRectangle.GetGuiRectangle(Left, Top, Width, Height);
				Rectangle selectionRect = new Rectangle(cropRectangle.Left - 1, cropRectangle.Top - 1, cropRectangle.Width + 1, cropRectangle.Height + 1);

				DrawSelectionBorder(g, selectionRect);
				
				// top
				g.FillRectangle(cropBrush, new Rectangle(0, 0, _parent.Width, cropRectangle.Top));
				// left
				g.FillRectangle(cropBrush, new Rectangle(0, cropRectangle.Top, cropRectangle.Left, cropRectangle.Height));
				// right
				g.FillRectangle(cropBrush, new Rectangle(cropRectangle.Left + cropRectangle.Width, cropRectangle.Top, _parent.Width - (cropRectangle.Left + cropRectangle.Width), cropRectangle.Height));
				// bottom
				g.FillRectangle(cropBrush, new Rectangle(0, cropRectangle.Top + cropRectangle.Height, _parent.Width, _parent.Height - (cropRectangle.Top + cropRectangle.Height)));
			}
		}
		
		public override bool HasContextMenu {
			get {
				// No context menu for the CropContainer
				return false;
			}
		}
	}
}