protected override HistoryMemento OnUndo(ProgressEventHandler progressCallback)
{
MetadataHistoryMemento memento = new MetadataHistoryMemento(base.Name, base.Image, this.historyWorkspace);
MetadataHistoryMementoData data = (MetadataHistoryMementoData)base.Data;
this.historyWorkspace.Document.ReplaceMetadataFrom(data.Document);
return(memento);
}
public MetadataHistoryMemento(string name, ImageResource image, IHistoryWorkspace historyWorkspace) : base(name, image)
{
this.historyWorkspace = historyWorkspace;
Document document = new Document(1, 1);
document.ReplaceMetadataFrom(historyWorkspace.Document);
MetadataHistoryMementoData data = new MetadataHistoryMementoData(document);
base.Data = data;
}
