ShareX/GreenshotImageEditor/Drawing/CropContainer.cs

/*
 * Greenshot - a free and open source screenshot tool
 * Copyright (C) 2007-2013  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 Greenshot.Drawing.Fields;
using Greenshot.Helpers;
using Greenshot.Plugin.Drawing;
using System.Drawing;

namespace Greenshot.Drawing
{
    /// <summary>
    /// Description of CropContainer.
    /// </summary>
    public class CropContainer : DrawableContainer
    {
        public CropContainer(Surface parent)
            : base(parent)
        {
            AddField(GetType(), FieldType.FLAGS, FieldType.Flag.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
        {
            get
            {
                return new Rectangle(0, 0, parent.Width, parent.Height);
            }
        }

        public override void Draw(Graphics g, RenderMode rm)
        {
            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;
            }
        }
    }
}