certificatedialog.java

一个用java写的mail.里面的代码值得我们去研究！学习。

/*
** $Id: CertificateDialog.java,v 1.3 2001/05/07 12:37:22 kunugi Exp $
**
** Copyright (c) 2000-2001 Jeff Gay
** on behalf of ICEMail.org <http://www.icemail.org>
** Copyright (c) 1998-2000 by Timothy Gerard Endres
** 
** This program is free software.
** 
** You may redistribute it and/or modify it under the terms of the GNU
** General Public License as published by the Free Software Foundation.
** Version 2 of the license should be included with this distribution in
** the file LICENSE, as well as License.html. If the license is not
** included with this distribution, you may find a copy at the FSF web
** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
**
** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
** REDISTRIBUTION OF THIS SOFTWARE. 
*/

package org.icemail.mail.smime;


import java.awt.*;
import java.awt.event.*;
import java.net.InetAddress;

import javax.swing.*;
import javax.swing.border.*;
import javax.swing.tree.*;

import javax.mail.*;

import iaik.asn1.ObjectID;
import iaik.asn1.structures.Name;
import iaik.x509.X509Certificate;

import org.icemail.util.AWTUtilities;


public class CertificateDialog
  extends JDialog
  implements ActionListener
{
  private JSplitPane           split;
  private X509Certificate[]    certChain;
  private CertificateTreePanel certPanel;
  private CertificateInfoPanel infoPanel;


  public
  CertificateDialog( Frame parent, String title,
                     X509Certificate[] certChain, boolean showImportPanel ) {
    super( parent, title, true );

    this.certChain = certChain;

    this.establishContents( certChain, showImportPanel );

    this.pack();

    Dimension sz = this.getSize();
    if ( sz.width < 580 )
      sz.width = 580;
    if ( sz.height < 360 )
      sz.height = 360;
    this.setSize( sz );

    this.split.setDividerLocation( 0.25 );

    this.addWindowListener(
      new WindowAdapter()
        {
        public void
        windowActivated( WindowEvent e )
          { certPanel.expandAllNodes(); }
        }
      );
  }

  public void
  actionPerformed( ActionEvent event ) {
    String command = event.getActionCommand();

    if ( command.equals( "DISMISS" ) ) {
      this.dispose();
    }
  }

  protected void
  establishContents( X509Certificate[] certChain, boolean showImportPanel ) {
    int row = 0;
    JLabel lbl = null;

    Container contentPane = this.getContentPane();
    contentPane.setLayout( new BorderLayout() );

    this.infoPanel =
      new CertificateInfoPanel( certChain, showImportPanel );

    this.certPanel =
      new CertificateTreePanel( certChain, infoPanel );

    this.split =
      new JSplitPane( JSplitPane.VERTICAL_SPLIT, certPanel, infoPanel );

    JPanel ctlPan = new JPanel();
    ctlPan.setLayout( new BorderLayout() );

    JPanel btnPanel = new JPanel();
    btnPanel.setLayout( new GridLayout( 1, 2, 25, 7 ) );
    btnPanel.setBorder( new EmptyBorder( 8, 5, 5, 5 ) );

    JButton canBtn = new JButton( "Dismiss" );
    canBtn.setActionCommand( "DISMISS" );
    canBtn.addActionListener( this );
    btnPanel.add( canBtn );

    ctlPan.add( BorderLayout.EAST, btnPanel );

    contentPane.add( BorderLayout.CENTER, split );
    contentPane.add( BorderLayout.SOUTH, ctlPan );
  }


  private class NoFocusLabel
    extends JLabel
  {
    public
    NoFocusLabel( String text ) {
      super( text );
    }

    public boolean
    isFocusTraversable() {
      return false;
    }
  }
}