Re: [jCrollPane]Positionning the view with a command

Knute Johnson <>
Sun, 19 Jul 2009 09:22:09 -0700
John B. Matthews wrote:

In article <4a61fc3e$0$5402$>,
 Knute Johnson <> wrote:

Daniel Moyne wrote:


Now how do I recover information on the vertical slider to set its position
with my selected int variable ?

Knute: Your approach is very appealing. As an alternative, I replaced
your JTextField with a JSpinner:

        JSpinner js= new JSpinner();
        js.setModel(new SpinnerNumberModel(0, 0, 9, 1));
        js.addChangeListener(new ChangeListener() {
            public void stateChanged(ChangeEvent e) {
                JSpinner s = (JSpinner) e.getSource();
                int n = (Integer) s.getValue();
                JViewport vp = sp.getViewport();
                Point p = panels[n].getLocation();
        add(js, BorderLayout.SOUTH);

I'll admit it, I was too lazy to do the spinner.


I also centered n vertically, in NPanel by adding half the font height:

        int h = fm.getHeight() / 2;

Now you're giving away all the secrets :-).


Knute Johnson
email s/nospam/knute2009/

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