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Re: Java claims WORA

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John B. Matthews wrote:
> Roedy Green wrote:
>> John B. Matthews wrote, quoted or indirectly quoted someone who said :
>>> I'll second the need for testing, but I've found that using layouts
>>> properly and respecting a component's preferred size greatly reduces
>>> the number of cross-platform problems. There's a recent example
>>> here:
>>
>> one of the big problems is when you substitute a font, the characters
>> are not the same size.  I would like to normalize fonts to their true
>> size so that when you substitute fonts, the actual real estate
>> consumed varies only a little.
>
> I must demur: a typical JComponent, such as JLabel, goes to considerable
> lengths to calculate its preferred size using the metrics of the
> selected Font. As long as you
>
> - don't veto the calculation,
> - don't preclude resizing,
> - do use a LayoutManager, and
> - do pack() the enclosing Container
>
> the chosen Font is irrelevant. If the Font must be changed dynamically,
> revalidate() and repaint() should suffice.
>
>> Another would be a guaranteed to render all glyphs, even if it means
>> substituting from some other font.  Failing that at telling the
>> truth. Java claims to render a glyph when all it does in render some
>> generic glyph.
>
> Font substitution shouldn't cause a problem. Missing glyphs and
> mendacious canDisplay() are annoying, but the metrics are typically
> reliable.

Depends on what problem you care about, and what constitutes relevance.

You might not be happy with a screen that doubles its width to accommodate a 
font, for design reasons.

Sure, Swing handles the technical details of resizing, and layouts do wonders 
to work around variances in fonts and so forth, but that's all technical 
problems and solutions and relevance.

Design problems and solutions and relevance revolve around what looks right 
and works for the program's purpose, i.e., the user's purpose. Roedy's wish 
for fonts that squish instead of windows that widen is not uncommon nor 
unreasonable, from a design perspective. You might prefer the data entry box 
not get smaller to make room for a longer prompt.

So technical dimension, no problem, design dimension, eh, depends on the 
design and what changes it can withstand.

-- 
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

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Java claims WORA owais <awais4you@gmail.com> - 2012-06-20 08:33 -0700
  Re: Java claims WORA Robert Klemme <shortcutter@googlemail.com> - 2012-06-20 09:21 -0700
  Re: Java claims WORA Gene Wirchenko <genew@ocis.net> - 2012-06-20 09:46 -0700
  Re: Java claims WORA Lew <lewbloch@gmail.com> - 2012-06-20 10:47 -0700
    Re: Java claims WORA "Mike Schilling" <mscottschilling@hotmail.com> - 2012-06-24 16:56 -0700
  Re: Java claims WORA Arne Vajhøj <arne@vajhoej.dk> - 2012-06-20 17:02 -0400
    Re: Java claims WORA glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-06-20 21:45 +0000
      Re: Java claims WORA Martin Gregorie <martin@address-in-sig.invalid> - 2012-06-20 22:25 +0000
        Re: Java claims WORA Robert Klemme <shortcutter@googlemail.com> - 2012-06-21 00:57 +0200
          Re: Java claims WORA Roedy Green <see_website@mindprod.com.invalid> - 2012-06-20 16:46 -0700
            Re: Java claims WORA David Lamb <dalamb@cs.queensu.ca> - 2012-06-20 19:56 -0400
      Re: Java claims WORA Arne Vajhøj <arne@vajhoej.dk> - 2012-06-20 19:16 -0400
        Re: Java claims WORA "Mike Schilling" <mscottschilling@hotmail.com> - 2012-06-24 16:58 -0700
  Re: Java claims WORA Roedy Green <see_website@mindprod.com.invalid> - 2012-06-20 16:43 -0700
    Re: Java claims WORA Arne Vajhøj <arne@vajhoej.dk> - 2012-06-20 20:30 -0400
    Re: Java claims WORA Roedy Green <see_website@mindprod.com.invalid> - 2012-06-20 18:37 -0700
      Re: Java claims WORA Arne Vajhøj <arne@vajhoej.dk> - 2012-06-20 21:47 -0400
  Re: Java claims WORA Thomas Richter <thor@math.tu-berlin.de> - 2012-06-22 19:18 +0200
    Re: Java claims WORA "John B. Matthews" <nospam@nospam.invalid> - 2012-06-22 15:59 -0400
      Re: Java claims WORA Roedy Green <see_website@mindprod.com.invalid> - 2012-06-24 04:43 -0700
        Re: Java claims WORA "John B. Matthews" <nospam@nospam.invalid> - 2012-06-24 18:51 -0400
          Re: Java claims WORA Lew <noone@lewscanon.com> - 2012-06-24 23:27 -0700
            Re: Java claims WORA "John B. Matthews" <nospam@nospam.invalid> - 2012-06-26 15:43 -0400
    Re: Java claims WORA Jim Janney <jjanney@shell.xmission.com> - 2012-06-22 18:23 -0600
  Re: Java claims WORA Jan Burse <janburse@fastmail.fm> - 2012-06-22 21:40 +0200
    Re: Java claims WORA David Lamb <dalamb@cs.queensu.ca> - 2012-06-25 09:57 -0400
      Re: Java claims WORA Jan Burse <janburse@fastmail.fm> - 2012-06-25 20:34 +0200
        Re: Java claims WORA Jan Burse <janburse@fastmail.fm> - 2012-06-25 20:44 +0200

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