EXTENDING VIEW FUNCTIONALITY OF APPLICATION

摘要

The viewing functionality of an application may be extended by use of an adapter. An application is instantiated, and the application may provide a view box that contains a scrolling feature as part of its interface. The adapter uses the application “behind the scenes” to collect information in a way that is not visible to the user. Mouse gestures may be defined to perform various viewing functions such as zooming. The adapter intercepts these gestures in the window that the user uses to interact with the application, and interprets the gestures as specific view commands (such as zoom). Based on the commands (or, possibly, in anticipation of commands that have not yet been issued), the adapter uses the application to collect content. The application then scales the content appropriately, puts the scaled content in a document, and overlays the document on top of the view box.