protected override HistoryMemento OnUndo(ProgressEventHandler progressCallback)
{
DeleteLayerHistoryMementoData data = (DeleteLayerHistoryMementoData)base.Data;
HistoryMemento memento = new NewLayerHistoryMemento(base.Name, base.Image, this.historyWorkspace, this.index);
this.historyWorkspace.Document.Layers.Insert(this.index, data.Layer);
((Layer)this.historyWorkspace.Document.Layers[this.index]).Invalidate();
return(memento);
}
protected override HistoryMemento OnUndo()
{
DeleteLayerHistoryMementoData data = (DeleteLayerHistoryMementoData)this.Data;
HistoryMemento ha = new NewLayerHistoryMemento(Name, Image, this.historyWorkspace, this.index);
this.historyWorkspace.Document.Layers.Insert(index, data.Layer);
((Layer)this.historyWorkspace.Document.Layers[index]).Invalidate();
return(ha);
}
