Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.gui > #743

Re: reference JScrollPane

Show all headers | View raw

  To: comp.lang.java.gui
"Jeff Higgins" <oohiggins@yahoo.com> wrote:
> 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;
May be something like this (untested code):
      JScrollPane scrollPane = (JScrollPane)
         SwingUtilities.getAncestorOfClass(JScrollPane.class, this);
      return scrollPane.getViewport().getInsets();

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

-- 
Thomas

---
 * Synchronet * The Whitehouse BBS --- whitehouse.hulds.com --- check it out free usenet!
--- Synchronet 3.15a-Win32 NewsLink 1.92
Time Warp of the Future BBS - telnet://time.synchro.net:24

Back to comp.lang.java.gui | Previous | Next — Previous in thread | Find similar

Thread

reference JScrollPane.vie "Jeff Higgins" <jeff.higgins@THRWHITE.remove-dii-this> - 2011-04-27 15:29 +0000
  Re: reference JScrollPane "Thomas Fritsch" <thomas.fritsch@THRWHITE.remove-dii-this> - 2011-04-27 15:29 +0000

csiph-web