Metis_xctg/Measurement/HistoryFunctions/DeselectFunction.cs

using PaintDotNet.Measurement.HistoryMementos;

namespace PaintDotNet.Measurement.HistoryFunctions
{
    public sealed class DeselectFunction : HistoryFunction
    {
        public static string StaticName
        {
            get
            {
                return PdnResources.GetString("DeselectAction.Name");
            }
        }

        public static ImageResource StaticImage
        {
            get
            {
                return PdnResources.GetImageResource("Icons.MenuEditDeselectIcon.png");
            }
        }

        public override HistoryMemento OnExecute(IDocumentWorkspace historyWorkspace)
        {
            if (historyWorkspace.GetSelection().IsEmpty)
            {
                return null;
            }
            else
            {
                SelectionHistoryMemento sha = new SelectionHistoryMemento(StaticName, StaticImage, historyWorkspace);

                EnterCriticalRegion();
                historyWorkspace.GetSelection().Reset();

                return sha;
            }
        }

        public DeselectFunction()
            : base(PaintDotNet.Measurement.Enum.ActionFlags.None)
        {
        }
    }
}