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Limit size of JOptionPane

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  Limit size of JOptionPane "oddstray" <oddstray@THRWHITE.remove-dii-this> - 2011-04-27 15:33 +0000
    Re: Limit size of JOption "visionset" <visionset@THRWHITE.remove-dii-this> - 2011-04-27 15:33 +0000
      Re: Limit size of JOption "oddstray" <oddstray@THRWHITE.remove-dii-this> - 2011-04-27 15:33 +0000
        Re: Limit size of JOption "Knute Johnson" <knute.johnson@THRWHITE.remove-dii-this> - 2011-04-27 15:33 +0000

#1426 — Limit size of JOptionPane

  To: comp.lang.java.gui
Hi,

I'm using a JTextArea inside a JScrollPane inside a JPanel as the
"msg" field in a JOptionPane.  Trouble is, my JTextArea has many
lines, and the JOptionPane expands to accommodate it.  I need to limit
the height of my JOptionPane, but for the life of me I can't find the
magic combination of layouts and set<something>Size calls that works!

Here's my sequence of calls (not showing all my non-working attempts):

JTextArea msgTxtArea = new JTextArea(fileBuffer.toString());
JScrollPane msgPane = new JScrollPane(msgTxtArea);
msgPane.setMaximumSize(new Dimension(m_mainFrame.getWidth()/
2,m_mainFrame.getHeight()/2));
JPanel msgPanel = new JPanel();  // needs some sort of layout and size
settings
msgPanel.add(msgPane);
JOptionPane.showMessageDialog(
		m_mainFrame,
		msgPanel,
		"Warning",
		JOptionPane.WARNING_MESSAGE);

Can anyone point me in the right direction to get this to appear
properly?  TIA for any help ...

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#1429 — Re: Limit size of JOption

  To: comp.lang.java.gui

<oddstray@gmail.com> wrote in message 
news:1176230836.660006.261610@w1g2000hsg.googlegroups.com...
> Hi,
>
> I'm using a JTextArea inside a JScrollPane inside a JPanel as the
> "msg" field in a JOptionPane.  Trouble is, my JTextArea has many
> lines, and the JOptionPane expands to accommodate it.  I need to limit
> the height of my JOptionPane, but for the life of me I can't find the
> magic combination of layouts and set<something>Size calls that works!

JScrollPane sp = ...
sp.setPrefrerredSize(new Dimension(sp.getPreferredSize().width, myHeight);

Just take the default FlowLayout of JPanel this will respect PreferredSize.

-- 
Mike W

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#1430 — Re: Limit size of JOption

  To: comp.lang.java.gui
On Apr 10, 12:24 pm, "visionset" <s...@ntlworld.com> wrote:
> <oddst...@gmail.com> wrote in message
>
> > [edited] the height of my JOptionPane, but for the life of me I can't find the
> > magic combination of layouts and set<something>Size calls that works!
>
> JScrollPane sp = ...
> sp.setPrefrerredSize(new Dimension(sp.getPreferredSize().width, myHeight);
>
> Just take the default FlowLayout of JPanel this will respect PreferredSize.

Thanks!  That worked.

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#1431 — Re: Limit size of JOption

  To: comp.lang.java.gui
oddstray@gmail.com wrote:
> On Apr 10, 12:24 pm, "visionset" <s...@ntlworld.com> wrote:
>> <oddst...@gmail.com> wrote in message
>>
>>> [edited] the height of my JOptionPane, but for the life of me I can't find the
>>> magic combination of layouts and set<something>Size calls that works!
>> JScrollPane sp = ...
>> sp.setPrefrerredSize(new Dimension(sp.getPreferredSize().width, myHeight);
>>
>> Just take the default FlowLayout of JPanel this will respect PreferredSize.
> 
> Thanks!  That worked.
> 
> 
> 

You could probably go a long way by just setting rows and columns in the 
JTextArea too.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class test {
     public static void main(String[] args) throws Exception {
         Runnable r = new Runnable() {
             public void run() {
                 JTextArea ta = new JTextArea(
            ";laksdj l;aksdj weiowe sa;2334  234 2  asojoi3 23423" +
            "kdddd 3awe Now is the tiem for all good men to com to the" +
            "adi of theirparty.  the quick brown fox jumped over the " +
            "lazy red dog. ;alskd  askldf ;lwkj02930n; 0wqeoji  aslk" +
            ";l asd <F2><F2>;;laskjdoj kkd  3w  []pioopi[p sadwerqddsf" +
            "23423 34 3 3 234  6343 764564 66 455645 4345 77 774565 745"
                  ,5,25);
                 ta.setLineWrap(true);
                 ta.setWrapStyleWord(true);
                 JScrollPane sp = new JScrollPane(ta);
                 JOptionPane.showMessageDialog(null,sp);
                 System.exit(0);
             }
         };
         EventQueue.invokeLater(r);
     }
}

-- 

Knute Johnson
email s/nospam/knute/

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