// return reversed command for Undo. Redo is not reversed
static public UndoableCommand GetReversedForUndo(UndoableCommand command)
{
UndoableCommand reversed = null;
if (command.type == UndoableCommandType.InsertComponent)
{
reversed = command.Clone() as UndoableCommand;
reversed.type = UndoableCommandType.DeleteComponent;
}
else if (command.type == UndoableCommandType.DeleteComponent)
{
reversed = command.Clone() as UndoableCommand;
reversed.type = UndoableCommandType.InsertComponent;
}
else if (command.type == UndoableCommandType.ChangeComponentProperty)
{
reversed = UndoableCommand_Property.GetReversed(command as UndoableCommand_Property);
}
else if (command.type == UndoableCommandType.RoutedCommand)
{
reversed = UndoableCommand_Routed.GetReversed(command as UndoableCommand_Routed);
}
else
{
throw new Exception(String.Format("Command type {0} cannot be reversed", command.type));
}
return(reversed);
}
static public UndoableCommand_Routed GetReversed(UndoableCommand_Routed command)
{
UndoableCommand_Routed reversed = command.Clone() as UndoableCommand_Routed;
if (command.command == Command.SpreadsheetAddColumn)
{
reversed.command = Command.SpreadsheetDeleteColumn;
}
else if (command.command == Command.SpreadsheetDeleteColumn)
{
reversed.command = Command.SpreadsheetAddColumn;
}
else if (command.command == Command.SpreadsheetAddRow)
{
reversed.command = Command.SpreadsheetDeleteRow;
}
else if (command.command == Command.SpreadsheetDeleteRow)
{
reversed.command = Command.SpreadsheetAddRow;
}
else if (command.command == Command.MacroAddParam)
{
reversed.command = Command.MacroDeleteParam;
}
else if (command.command == Command.MacroDeleteParam)
{
reversed.command = Command.MacroAddParam;
}
else if (command.command == Command.LoopAddParam)
{
reversed.command = Command.LoopDeleteParam;
}
else if (command.command == Command.LoopDeleteParam)
{
reversed.command = Command.LoopAddParam;
}
else if (command.command == Command.CreateDatatable)
{
reversed.command = Command.DeleteDatatable;
}
else if (command.command == Command.DeleteDatatable)
{
reversed.command = Command.CreateDatatable;
}
else
{
throw new Exception(String.Format("Routed Command type {0} cannot be reversed", command.command));
}
return(reversed);
}
