Article View: borland.public.jbuilder.java.swing
Article #986Re: JTextArea problem
From: Tad Frysinger
Date: Wed, 11 Aug 2004 12:26
Date: Wed, 11 Aug 2004 12:26
60 lines
3172 bytes
3172 bytes
Alexei A. Akimov wrote: > 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. > http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4202291 Tad Frysinger (TeamB)
Technical Details
Message-ID:
<411a105a@newsgroups.borland.com>Path:
arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.glorb.com!border1.nntp.dca.giganews.com!nntp.giganews.com!diablo.voicenet.com!38.119.100.83.MISMATCH!news-out1.nntp.be!propagator2-sterling!propagator3-cogent!in.nntp.be!caladan.arrakis.es!newsgroups.borland.com!not-for-mailReferences:
<4108e77b@newsgroups.borland.com> <4113a09a$1@newsgroups.borland.com> <41175cc6@newsgroups.borland.com> <411934bc$1@newsgroups.borland.com> <4119da83@newsgroups.borland.com>Show Full Headers
Complete Article Headers
X-Google-Thread: 111d45,3ca3352f389bb44c X-Google-Attributes: gid111d45,public X-Google-Language: ENGLISH,ASCII-7-bit Date: Wed, 11 Aug 2004 06:26:03 -0600 From: Tad Frysinger <tadfrysinger@comcast.net> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040616 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: borland.public.jbuilder.java.swing Subject: Re: JTextArea problem References: <4108e77b@newsgroups.borland.com> <4113a09a$1@newsgroups.borland.com> <41175cc6@newsgroups.borland.com> <411934bc$1@newsgroups.borland.com> <4119da83@newsgroups.borland.com> In-Reply-To: <4119da83@newsgroups.borland.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 205.214.201.158 Message-ID: <411a105a@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1092227162 205.214.201.158 (11 Aug 2004 05:26:02 -0700) Lines: 60 Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.glorb.com!border1.nntp.dca.giganews.com!nntp.giganews.com!diablo.voicenet.com!38.119.100.83.MISMATCH!news-out1.nntp.be!propagator2-sterling!propagator3-cogent!in.nntp.be!caladan.arrakis.es!newsgroups.borland.com!not-for-mail