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Re: Overriding JComponent or implementing ComponentUI?

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On 01/07/2012 21:45, Daniel Pitts allegedly wrote:
> Hello Swing programmers.
> 
> I'm going to try to make a few custom components. Specifically histogram
> and heat maps.  Heat maps meaning histograms over time plots.
> 
> I know there are probably existing libraries which do this, and I will
> investigate using them too, but for my use-case I may need more
> flexibility then they afford.  In any case, I also enjoy implementing
> these kinds of things as a learning exercise.
> 
> So, in the past I've always implement custom views by extends JComponent
> and overriding the paintComponent method.  That works fairly well, but
> then I noticed that there is the ComponentUI classes and subclasses.
> 
> Does anyone have any experience with implementing ComponentUI classes?
> It seems to be part of the PLAF architecture, and since this isn't
> really a look-and-feel configurable component, it seems like that may be
> overkill.
> 
> Actually, I think I've answered my own question, but I'll post this
> anyway to encourage discussions :-)
> 
> Feedback and suggestions on libraries to use instead is welcome.  Thanks.
> 
> 
> Thanks,
> Daniel.

FWIW (as it's been a while I've done GUI code), the more complex and
specialised custom components I wrote, the further I lent towards
ComponentUIs. Unfortunately, I don't remember any exact benefit. Perhaps
a matter of cleanness and encapsulation (as it feels "more right" to put
that code in a dedicated place, rather than overriding stuff in the
component). There's also the issue of shared resources, although those
can be dealt with similarly in JComponent.

I realise that was a terribly useless post. Sorry about that. :)

-- 
DF.

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Thread

Overriding JComponent or implementing ComponentUI? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-07-01 12:45 -0700
  Re: Overriding JComponent or implementing ComponentUI? "John B. Matthews" <nospam@nospam.invalid> - 2012-07-01 20:11 -0400
  Re: Overriding JComponent or implementing ComponentUI? Roedy Green <see_website@mindprod.com.invalid> - 2012-07-05 07:40 -0700
    Re: Overriding JComponent or implementing ComponentUI? "John B. Matthews" <nospam@nospam.invalid> - 2012-07-05 21:11 -0400
  Re: Overriding JComponent or implementing ComponentUI? "John B. Matthews" <nospam@nospam.invalid> - 2012-07-05 21:06 -0400
  Re: Overriding JComponent or implementing ComponentUI? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-07-10 01:42 +0200
    Re: Overriding JComponent or implementing ComponentUI? Lew <noone@lewscanon.com> - 2012-07-09 23:30 -0700
      Re: Overriding JComponent or implementing ComponentUI? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-07-10 20:18 +0200
        Re: Overriding JComponent or implementing ComponentUI? Lew <lewbloch@gmail.com> - 2012-07-10 13:25 -0700

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