arview.java

数据挖掘中

/*----------------------------------------------------------------------
  File    : ARView.java
  Contents: association rule visualization program
  Author  : Christian Borgelt
  History : 06.07.2004 file created from file DTView.java
----------------------------------------------------------------------*/
package arview;

import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/*--------------------------------------------------------------------*/
class LogoPanel extends JPanel {
/*--------------------------------------------------------------------*/

  private byte[] logodata = {   /* data for logo (GIF format) */
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  private ImageIcon logo = new ImageIcon(logodata);

  /*------------------------------------------------------------------*/

  public Dimension getPreferredSize ()
  { return new Dimension(logo.getIconWidth(), logo.getIconHeight()); }

  public void paint (Graphics g)
  {                             /* --- draw the logo */
    g.setColor(Color.lightGray);
    g.fillRect(0, 0, logo.getIconWidth(), logo.getIconHeight());
    g.drawImage(logo.getImage(), 0, 0, this);
  }  /* paint() */              /* draw the logo */

}  /* class LogoPanel */


/*--------------------------------------------------------------------*/
public class ARView extends JFrame {
/*--------------------------------------------------------------------*/

  private static final Font font  = new Font("Dialog", Font.BOLD, 12);

  private ARTable      table   = null;  /* the association rule table */
  private JTextField   stat    = null;  /* a status bar for messages */
  private JFileChooser chooser = null;  /* the file chooser */
  private JDialog      about   = null;  /* the "About..." dialog box */
  private File         curr    = null;  /* current tree file */
  private ARToolbox    toolbox = null;  /* toolbox window */

  /*------------------------------------------------------------------*/

  private JFileChooser createChooser ()
  {                             /* --- create a file chooser */
    JFileChooser fc = new JFileChooser();
    fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
    fc.setFileHidingEnabled(true);
    fc.setAcceptAllFileFilterUsed(true);
    fc.setMultiSelectionEnabled(false);
    fc.setFileView(null);       /* create a standard file chooser */
    return fc;                  /* without customized filters */
  }  /* createChooser() */

  /*------------------------------------------------------------------*/

  private JDialog createAbout (Component owner)
  {                             /* --- create "About..." dialog box */
    final JDialog dlg  = new JDialog();
    Container     pane = dlg.getContentPane();
    LogoPanel     logo = new LogoPanel();
    JButton       btn  = new JButton("Ok");
    JPanel        rest = new JPanel(new BorderLayout(2, 2));
    JTextArea     text = new JTextArea
      ("ARView\n\n"
      +"An Association Rule Viewer\n"
      +"Version 1.2, 2005.01.25\n\n"
      +"written by Christian Borgelt\n"
      +"Otto-von-Guericke-University of Magdeburg\n"
      +"Universitatsplatz 2, D-39106 Magdeburg\n"
      +"e-mail: [e-mail]");
    text.setBackground(Color.lightGray);
    text.setFont(new Font("Dialog", Font.BOLD, 12));
    text.setEditable(false);
    btn.addActionListener(new AbstractAction () {
      public void actionPerformed (ActionEvent e) {
        dlg.setVisible(false); } } );