Class: GOffice::Undo

Inherits:

Object

• Object
• GOffice::Undo

Defined in:

(unknown)

Direct Known Subclasses

UndoBinary, UndoGroup, UndoUnary

Instance Method Summary

• #combine(b) ⇒ GOffice::Undo

  This function takes ownership of the argument references and gives ownership of the result to the caller.

• #undo ⇒ nil

  Execute the stored undo operation.

• #undo_with_data(data) ⇒ nil

  Execute the stored undo operation.

Instance Method Details

#combine(b) ⇒ GOffice::Undo

This function takes ownership of the argument references and gives ownership
of the result to the caller. Either argument may be nil in which case the
other is returned.

Parameters:

• b (GOffice::Undo) —

  last undo operation

Returns:

• (GOffice::Undo) —

  the combination of two undo operations.

#undo ⇒ nil

Execute the stored undo operation.

Returns:

• (nil)

#undo_with_data(data) ⇒ nil

Execute the stored undo operation. data is supplied to the undo
operation as an extra argument. It is meant not to affect the undo
operation in any way, but rather supply a context through which
progress and errors can be reported.

Parameters:

• data (GObject) —

  user data

Returns:

• (nil)