🚀 go-pugleaf

Hi,

usually a very long paragraph will be really slow in Swing, regardless of
the version of the jdk used. I mean, a 2 k paragraph will be really slow,
while 1000 short paragraphs put in the same control will be very fast.

There's nothing to be done: are you sure you really nead paragraphs THAT
long?

Regards,
Daniel

"Alexei A. Akimov" <a.a.akimov@mail.ru> wrote in message
news:4119da83@newsgroups.borland.com...
> Tad Frysinger ?????:
> > Alexei A. Akimov wrote:
> >
> >> Tad Frysinger ?????:
> >>
> >>> Alexei A. Akimov wrote
> >>>
> >>>> Dear expert,
> >>>>
> >>>> I have a problem with JTextArea component. Suppose it is placed on a
> >>>> JScrollPane and contains 20 or 30 lines of text. If I positin the
> >>>> caret at the beginning of text and move it (using keyboard) down
> >>>> holding the Shift button down then I make some selection in the
> >>>> text. The problem is that the operation is very slow (program waits
> >>>> while the selection is being repainted). If I seelct the same
> >>>> fragment using mouse it is not slow. I use the default setting for
> >>>> the JTextArea component except LineWrap property is set true. Any
> >>>> ideas?
> >>>>
> >>>> Best regards,
> >>>> Alexei Akimov
> >>>>
> >>> Which JDK are you using? I can create a JTextArea in a JSCrollPane
> >>> using the 1.4.2_01-b06 JDK and I created 50 lines of text and did
> >>> various keyboard based selections. Seemed pretty snappy to me...
> >>>
> >>> Tad Frysinger (TeamB)
> >>
> >>
> >> Thank You,
> >>
> >> I use JDK 1.4.1_02=b06 for Linux, JBuilder 9. Yes I use the teaxt area
> >> insiade the JScrollPane. No special tunning of the components was
> >> performed. All the properties have their default values. May be some
> >> setting should be made?
> >>
> >> Best regards,
> >> Alexei Akimov.
> >>
> > Is your 20-30 lines of text actually all one line that is wrapped? There
> > are known problems with performance on longer single lines (although
> > usually these are in the hundreds, or at least dozens of lines).
> >
> > Tad Frysinger (TeamB)
> Thank You,
>
> You are right again, it is a long wrapped line of text. You wrote it is
> know problem, would You please give me some links.
>
> Best regards,
> Alexei Akimov.
>