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Forced Scroll

I have a scrollpane that I need to reposition. I have tried to change the value of the Vertical scrollbar but this was unsuccessful. This is a sample of the code that I used.
getOESScrollPane().getVerticalScrollBar().setValue(2);

Thanks in advance for your help
0
xaun
Asked:
xaun
1 Solution
 
sdussingerCommented:
Try this:

Point pos = getOESScrollPane().getViewport ().getViewPosition ();

pos.y -= 50;

getOESScrollPane().getViewport ().setViewPosition (pos);

This will scroll the viewport vertically by 50 pixels.

--Steve
0
 
sdussingerCommented:
Try this:

Point pos = getOESScrollPane().getViewport ().getViewPosition ();

pos.y -= 50;

getOESScrollPane().getViewport ().setViewPosition (pos);

This will scroll the viewport vertically by 50 pixels.

--Steve
0
 
sdussingerCommented:
Try this:

Point pos = getOESScrollPane().getViewport ().getViewPosition ();

pos.y -= 50;

getOESScrollPane().getViewport ().setViewPosition (pos);

This will scroll the viewport vertically by 50 pixels.

--Steve
0
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sdussingerCommented:
Sorry. It seems that refreshing this page after generating a response causes the response to be posted more than once.

Guess I won't do that again!!

--Steve
0
 
xaunAuthor Commented:
Thanks for your input Steve but that solution didn't work. I tried it once before I posted the question then again after your suggestion.
0
 
sdussingerCommented:
That's odd. I tested it on my machine and it works fine.

I've included the test program that I used. If you have a slow internet connection, it'll take a while to load since its grabbing an image to scroll, so be patient.

Can you post your code here, so we can try and figure out why it fails for you?

Here's the code:

----------------------------------------------------------
public class JFrame extends javax.swing.JFrame
{

    public JFrame()
    {
        initComponents ();
        pack ();
    }

    private void initComponents()
    {
        jScrollPane1 = new javax.swing.JScrollPane();
        jLabel1 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        addWindowListener(new java.awt.event.WindowAdapter()
         {
          public void windowClosing(java.awt.event.WindowEvent evt)
          {
              exitForm(evt);
          }
         }
                 );
       
       
     try
         {
          java.net.URL url = new java.net.URL ("http://thebishop.ne.mediaone.net/photos/images/DSCN0159.JPG");

          jLabel1.setIcon(new javax.swing.ImageIcon(url));
         }
     catch (Exception e)
         {
         }

     jLabel1.setText("jLabel1");
     jScrollPane1.setViewportView(jLabel1);
           
        getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);
         
        jButton1.setText("jButton1");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
          public void actionPerformed(java.awt.event.ActionEvent evt) {
              jButton1ActionPerformed(evt);
          }
         } );
       
        getContentPane().add(jButton1, java.awt.BorderLayout.SOUTH);
       
    }

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt)
    {
     java.awt.Point pt = jScrollPane1.getViewport().getViewPosition ();
     
     System.out.println (pt);
     
     pt.y -= 50;
     
     jScrollPane1.getViewport ().setViewPosition (pt);
    }

    private void exitForm(java.awt.event.WindowEvent evt)
    {
     System.exit (0);
    }

    public static void main (String args[])
    {
        new JFrame ().show ();
    }


    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JButton jButton1;

}

----------------------------------------------------------

--Steve
0
 
sdussingerCommented:
Whenever you click on the button at the bottom of the panel, the image will scroll down by 50 pixels.

--Steve
0
 
sdussingerCommented:
Did this work for you? Are you planning on closing this question?

--Steve
0
 
vemulCommented:
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
- points to sdussinger
Please leave any comments here within the next seven days.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER !

vemul
Cleanup Volunteer
0
 
NetminderCommented:
Per recommendation, force-accepted.

Netminder
EE Admin
0
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