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From: "Jeff Higgins" <jeff.higgins@THRWHITE.remove-dii-this>
Subject: reference JScrollPane.vie
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Date: Wed, 27 Apr 2011 15:29:16 GMT
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  To: comp.lang.java.gui
Hi,
 How can I reference JScrollPane's
ViewportView from the contents of the
same JScrollPane's RowHeaderView?

I've tried:
private Insets getViewportViewInsets() {
  return getParent().viewport.getInsets();
}

Thanks,
Jeff Higgins

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

public class TestRuler extends JFrame {

  TestRuler() {
    Ruler vRule = new Ruler();
    MousePad mp = new MousePad();
    JScrollPane sPane = new JScrollPane();
    sPane.setViewportView(mp);
    sPane.setRowHeaderView(vRule);
    sPane.setViewportBorder(new LineBorder(Color.black));
    getContentPane().add(sPane);
  }

  class MousePad extends JPanel {}

  class Ruler extends JPanel {

    Insets viewportViewInsets;

    private Insets getViewportViewInsets() {
      // How do get ViewportView's
      // insets from here?
      return null;
    }
  }

  public static void main(String[] args) {
    JFrame frame = new TestLinePosition();
    frame.pack();
    frame.setBounds(100, 100, 200, 200);
    frame.setVisible(true);
  }
}

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