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This interface represents an action that a user can do in our editor. One can invoke the redo/undo methods to redo or undo the action that is represented by the appropriate instance. Please see the various subclasses.
Please note that some actions can be an undo and a redo action at the same time, while others can not. It is the task of the subclasses to make sure that no surprises happen.
Method Summary | |
void |
invalidate()
This method invalidates the action, which typically means that the undo/redo methods do nothing. |
void |
redo()
This method redoes the action. |
void |
undo()
This method undoes the action. |
Method Detail |
public void redo()
public void undo()
public void invalidate()
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