internal override OperationResult UndoOperation()
{
switch (Action)
{
case EJunctionPointAction.RemovePoint:
if (PointIndex == 0 || PointIndex == ViewHelperPointCollection.Count - 1)
{
return(OperationResult.Failed);
}
ViewHelperPointCollection.Insert(PointIndex, new rPoint(removedPoint));
break;
case EJunctionPointAction.AddPoint:
if (PointIndex == 0 || PointIndex == ViewHelperPointCollection.Count)
{
return(OperationResult.Failed);
}
ViewHelperPointCollection.RemoveAt(PointIndex);
break;
case EJunctionPointAction.MovePoints:
foreach (KeyValuePair <ObservablePointCollection, List <PointMoveData> > keyValuePair in PointMoveDataCollection)
{
foreach (PointMoveData pointMoveData in keyValuePair.Value)
{
keyValuePair.Key[pointMoveData.Index] = pointMoveData.OldPosition;
}
keyValuePair.Key.PointsChanged();
}
break;
}
return(OperationResult.OK);
}
internal override void CommandOperation()
{
switch (Action)
{
case EJunctionPointAction.AddPoint:
ViewHelperPointCollection.Insert(PointIndex, new rPoint(NewPoint));
break;
case EJunctionPointAction.RemovePoint:
removedPoint = ViewHelperPointCollection[PointIndex];
ViewHelperPointCollection.RemoveAt(PointIndex);
break;
case EJunctionPointAction.MovePoints:
{
int count = 0;
foreach (KeyValuePair <ObservablePointCollection, List <PointMoveData> > keyValuePair in PointMoveDataCollection)
{
foreach (PointMoveData pointMoveData in keyValuePair.Value)
{
keyValuePair.Key[pointMoveData.Index] = pointMoveData.NewPosition;
count++;
}
keyValuePair.Key.PointsChanged();
}
this.Description += String.Format(CommandDescription.MOVED_POINTS, count);
}
break;
}
}
