METHOD AND APPARATUS FOR PROVIDING AN UNDO/REDO MECHANISM

摘要

A method is described for providing a continuous undo/redo mechanism. The method comprises the steps of:—recording a history of a plurality of time stamped events based on reversible user actions.—navigating through the history by means of a continuous user input device,—translating the position of the continuous user input device to a point in time, and—identifying and displaying an intermediary state of the history based on the point of time.