Method to preview an undo/redo list

摘要

A method identifying an element in a document corresponding to an edit selected from a list of available edits to distinguish the selected edit from the other edits in the list. The identifying may reflect the type of edit, or otherwise demonstrate the change to the element effectuated by the edit. Multiple edits may be selected and temporarily highlighted or otherwise identified in chronological order to demonstrate the effect of multiple edits on the elements of the document.

主权项

1. A computer implemented method for editing a circuit design layout in an electronic design automation program, the method comprising:
displaying in a first edit list a first plurality of edits to the circuit design layout, wherein the first plurality of edits are edits available for undo; displaying in a second edit list a second plurality of edits to the circuit design layout, wherein the second plurality of edits are edits available for redo, wherein both the first and the second edit list are displayed simultaneously; moving an edit in the first edit list to the second edit list when an undo is conducted; receiving a selection of an edit selected from the first edit list or the second edit list; and displaying an emphasis to at least one element in the circuit design layout affected by the selected edit, wherein said emphasis changes the appearance of the at least one element within the layout.