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Method and system for displaying an expandable tree structure in a data processing system graphical user interface

  • US 5,917,492 A
  • Filed: 03/31/1997
  • Issued: 06/29/1999
  • Est. Priority Date: 03/31/1997
  • Status: Expired due to Term
First Claim
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1. A method for display of graphical information on a display screen of a data processing system, the display of graphical information including a plurality of nodes representing a hierarchy, wherein at least some of the nodes include subnodes, comprising the steps of:

  • selecting a node to be expanded as the hierarchy is displayed within a primary display window on the display screen;

    outputting within the primary display window a first display window in which a set of one or more subnodes associated with the selected node are displayed;

    responsive to selecting a first subnode to be expanded as the set of one or more subnodes are displayed within the first display window, outputting within the first display window a second display window in which a set of one or more subnodes of the first subnode are displayed; and

    re-positioning at least some of the set of one or more subnodes in the first display window if necessary to accommodate the second display window within the first display window.

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