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Chapter 8. HAVi > Pluggable Look

8.11. Pluggable Look

The HAVi L2 GUI framework provides pluggable look, also known as pluggable skin, using the HLook interface. Intuitively, the HLook interface may be regarded as a mechanism to allow a pluggable paint method to be automatically attached to the component. Pluggable looks allow implementers to extend the set of looks available to their application. Instead of having to subclass the entire component to change its look, it is possible to simply implement an HLook class and then associate this HLook implementation with the component. The following pre-defined looks are provided:

  • HAnimateLook: Presentation of an animated image sequence.

  • HGraphicLook: Presentation of graphical content.

  • HRangeLook: Presentation of a value within a range.

  • HTextLook: A simple presentation mechanism for textual content.

  • HSinglelineEntryLook: Single line of textual content that can be edited by the user.

  • HMultilineEntryLook: Multiple lines of textual content that can be edited by the user.


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