greenshot/Greenshot/Drawing/CropContainer.cs

99 lines
3.5 KiB
C#

/*
* Greenshot - a free and open source screenshot tool
* Copyright (C) 2007-2021 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 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 {
get
{
if (_parent?.Image is { } image) {
return new Rectangle(0, 0, image.Width, image.Height);
}
return Rectangle.Empty;
}
}
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);
Size imageSize = _parent.Image.Size;
DrawSelectionBorder(g, selectionRect);
// top
g.FillRectangle(cropBrush, new Rectangle(0, 0, imageSize.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, imageSize.Width - (cropRectangle.Left + cropRectangle.Width), cropRectangle.Height));
// bottom
g.FillRectangle(cropBrush, new Rectangle(0, cropRectangle.Top + cropRectangle.Height, imageSize.Width, imageSize.Height - (cropRectangle.Top + cropRectangle.Height)));
}
/// <summary>
/// No context menu for the CropContainer
/// </summary>
public override bool HasContextMenu => false;
}
}