private void SaveSnapshot(DataPreprocessingChangedEventType changedType, int column, int row)
{
if (IsInTransaction)
{
return;
}
var currentSnapshot = new Snapshot {
VariableValues = CopyVariableValues(variableValues),
VariableNames = new List <string>(variableNames),
TrainingPartition = new IntRange(TrainingPartition.Start, TrainingPartition.End),
TestPartition = new IntRange(TestPartition.Start, TestPartition.End),
Transformations = new List <ITransformation>(transformations),
ChangedType = changedType,
ChangedColumn = column,
ChangedRow = row
};
if (undoHistory.Count >= MAX_UNDO_DEPTH)
{
undoHistory.RemoveAt(0);
}
undoHistory.Add(currentSnapshot);
}
public void BeginTransaction(DataPreprocessingChangedEventType type)
{
if (IsFiltered)
{
throw new InvalidOperationException("Transaction not possible while data is filtered");
}
originalData.BeginTransaction(type);
}
public void InTransaction(Action action, DataPreprocessingChangedEventType type = DataPreprocessingChangedEventType.Any)
{
if (IsFiltered)
{
throw new InvalidOperationException("Transaction not possible while data is filtered");
}
originalData.InTransaction(action, type);
}
protected virtual void OnChanged(DataPreprocessingChangedEventType type, int column, int row)
{
var listeners = Changed;
if (listeners != null)
{
listeners(this, new DataPreprocessingChangedEventArgs(type, column, row));
}
}
public void BeginTransaction(DataPreprocessingChangedEventType type)
{
SaveSnapshot(type, -1, -1);
eventStack.Push(type);
}
public void InTransaction(Action action, DataPreprocessingChangedEventType type = DataPreprocessingChangedEventType.Any)
{
BeginTransaction(type);
action();
EndTransaction();
}
public DataPreprocessingChangedEventArgs(DataPreprocessingChangedEventType type, int column, int row) {
Type = type;
Column = column;
Row = row;
}
public DataPreprocessingChangedEventArgs(DataPreprocessingChangedEventType type, int column, int row)
{
Type = type;
Column = column;
Row = row;
}