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Event Registration and Dispatch System and Method for Multi-Point Controls

  • US 20170235478A1
  • Filed: 03/02/2017
  • Published: 08/17/2017
  • Est. Priority Date: 04/29/2008
  • Status: Abandoned Application
First Claim
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1. A multi-point input system, comprising:

  • a multi-point input device having an input surface; and

    a controller configured to;

    in a first frame;

    identify a first hit of a new stroke A; and

    register the new stroke A to a first listener of at least one of a plurality of interface elements based on a positional relationship of a first position of a contact of the new stroke A in the first frame and a tangible of the at least one of the plurality of interface elements, the first listener implementing a first control operation when the first listener is dispatched;

    in a second frame subsequent to the first frame;

    identify a release of a registered stroke B registered to a second listener, the second listener implementing a second control operation when the second listener is dispatched;

    unmap the registered stroke B from the second listener, the second listener becoming an inactive listener that no longer listens to the registered stroke B; and

    dispatch the first listener to implement the first control operation based on an updated state of the new stroke A, the updated state corresponding to a second position of the contact of the new stroke A in the second frame.

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