Concurrently supporting both document-based and object-based undo operations
US11113458B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2014 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Jul 26, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/166
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
During operation of a program, various different editing actions can be performed on data (e.g., image or video data) in a document. The data includes multiple objects, each of which is a user-selectable element of the data, such as a line, a shape, or a filter applied to the data. A record of actions taken on objects in the data is maintained, and the actions can be undone. A document-based undo operation can be performed, which undoes the last action performed in the document. An object-based undo can also be performed, which undoes the last action performed on a selected one or more objects in the document. A document-based redo operation can be performed, which redoes the last action undone in the document. An object-based redo can also be performed, which redoes the last action undone on a selected one or more objects in the document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.