greenshot/Greenshot/Memento/DrawableContainerBoundsChangeMemento.cs
2015-03-13 10:31:52 +01:00

101 lines
3.4 KiB
C#

/*
* Greenshot - a free and open source screenshot tool
* Copyright (C) 2007-2015 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.Collections.Generic;
using System.Drawing;
using Greenshot.Configuration;
using Greenshot.Plugin.Drawing;
using GreenshotPlugin.Core;
namespace Greenshot.Memento {
/// <summary>
/// The DrawableContainerBoundsChangeMemento makes it possible to undo-redo an IDrawableContainer resize & move
/// </summary>
public class DrawableContainerBoundsChangeMemento : IMemento {
List<Point> points = new List<Point>();
List<Size> sizes = new List<Size>();
List<IDrawableContainer> listOfdrawableContainer;
private void StoreBounds() {
foreach(IDrawableContainer drawableContainer in listOfdrawableContainer) {
points.Add(drawableContainer.Location);
sizes.Add(drawableContainer.Size);
}
}
public DrawableContainerBoundsChangeMemento(List<IDrawableContainer> listOfdrawableContainer) {
this.listOfdrawableContainer = listOfdrawableContainer;
StoreBounds();
}
public DrawableContainerBoundsChangeMemento(IDrawableContainer drawableContainer) {
listOfdrawableContainer = new List<IDrawableContainer>();
listOfdrawableContainer.Add(drawableContainer);
StoreBounds();
}
public void Dispose() {
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing) {
// if (disposing) { }
listOfdrawableContainer = null;
}
public LangKey ActionLanguageKey {
get {
return LangKey.none;
}
}
public bool Merge(IMemento otherMemento) {
DrawableContainerBoundsChangeMemento other = otherMemento as DrawableContainerBoundsChangeMemento;
if (other != null) {
if (Objects.CompareLists<IDrawableContainer>(listOfdrawableContainer, other.listOfdrawableContainer)) {
// Lists are equal, as we have the state already we can ignore the new memento
return true;
}
}
return false;
}
public IMemento Restore() {
DrawableContainerBoundsChangeMemento oldState = new DrawableContainerBoundsChangeMemento(listOfdrawableContainer);
for(int index = 0; index < listOfdrawableContainer.Count; index++) {
IDrawableContainer drawableContainer = listOfdrawableContainer[index];
// Before
drawableContainer.Invalidate();
drawableContainer.Left = points[index].X;
drawableContainer.Top = points[index].Y;
drawableContainer.Width = sizes[index].Width;
drawableContainer.Height = sizes[index].Height;
// After
drawableContainer.Invalidate();
drawableContainer.Parent.Modified = true;
}
return oldState;
}
}
}