wizardframe.java

weka机器学习系统（本站可下载）的拓展

/*
 * WizardFrame.java
 *
 * Created on 11 September 2003, 21:32
 */

package com.prcomps.cahitarf.gui;

import com.l2fprod.gui.plaf.skin.SkinLookAndFeel;
import com.prcomps.cahitarf.Db2Arff;

import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javax.swing.JTabbedPane;
import javax.swing.JOptionPane;
import javax.swing.ImageIcon;
import javax.swing.event.ChangeListener;
import javax.swing.event.ChangeEvent;
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.ResourceBundle;
import java.util.Properties;
import java.util.Set;
import java.util.HashSet;
import java.util.StringTokenizer;
import java.util.Iterator;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.net.URL;
import java.io.File;
import java.io.InputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.io.FileOutputStream;
import java.io.FileNotFoundException;
import java.text.MessageFormat;

/**
 *
 * @author  ayhan
 */
public class WizardFrame
        extends JFrame
        implements ActionListener,
        ChangeListener
{

    public static final String CMD_CANCEL = "cancel";
    public static final String CMD_NEXT   = "next";
    public static final String CMD_PREV   = "prev";
    public static final String CMD_PREFS  = "prefs";
    public static final String CMD_FINISH = "finish";

    public static final String FORM_START = "1start";
    public static final String FORM_TABS  = "2tabs";
    public static final String FORM_DB    = "3database";
    public static final String FORM_SELECT= "4select";
    public static final String FORM_ATTRS = "5attrs";
    public static final String FORM_RUN   = "6run";

    private static ResourceBundle bundle = ResourceBundle.getBundle("messages");

    public static Properties properties = new Properties();
    public static Set  prefsJdbcUrls;
    public static Set  prefsJdbcDrivers;
    public static List prefsFiles;

    private static String currentLaf;

    private JPanel      forms     = new JPanel();
    private Navigator   navigator = new Navigator();;
    private JTabbedPane tabForms  = new JTabbedPane( JTabbedPane.TOP );

    private FormStart   formStart;
    private FormDb      formDb;
    private FormSelect  formSelect;
    private FormAttrs   formAttrs;
    private FormRun     formRun;

    private IWizardPanel currentForm;

    private boolean inNavAction = false;

    public WizardFrame()
    {
        loadPrefs();
        formStart = new FormStart();
        formDb = new FormDb();
        formSelect = new FormSelect();
        formAttrs = new FormAttrs();
        formRun = new FormRun();
        currentForm = formStart;
        initComponents();
    }

    private void initComponents()
    {
        setTitle( bundle.getString("wizard.title") );
        setName( "WizardFrame" );
        URL url = getClass().getClassLoader().getResource( "icons/Icon.png" );
        setIconImage( new ImageIcon( url ).getImage() );

        addWindowListener(new java.awt.event.WindowAdapter()
        {
            public void windowClosing(java.awt.event.WindowEvent evt)
            {
                savePrefs();
                System.exit( 0 );
            }
        });

        tabForms.add( bundle.getString("wizard.db.title"), formDb );
        tabForms.add( bundle.getString("wizard.select.title"), formSelect );
        tabForms.add( bundle.getString("wizard.attrs.title"), formAttrs );
        tabForms.add( bundle.getString("wizard.run.title"), formRun );
        tabForms.addChangeListener( this );
        forms.setLayout( new CardLayout() );
        forms.add( formStart, FORM_START );
        forms.add( tabForms, FORM_TABS );

        navigator.setActionListener( this );

        getContentPane().add( navigator, BorderLayout.SOUTH );
        getContentPane().add( forms, BorderLayout.CENTER );
        pack();
        setSize( 650, 450 );
        setLookAndFeel( currentLaf );
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[])
    {
        new WizardFrame().show();
    }

    public void setLookAndFeel( String laf )
    {
        String lookAndFeel = "themes/" + laf + "/skinlf-themepack.xml";
        URL lfURL = getClass().getClassLoader().getResource( lookAndFeel );
        if ( lfURL != null )
        try
        {
            SkinLookAndFeel.setSkin(SkinLookAndFeel.loadThemePackDefinition( lfURL ));
            SkinLookAndFeel.enable();
            SwingUtilities.updateComponentTreeUI( this );
            currentLaf = laf;
        }
        catch ( Exception ex )
        {
            JOptionPane.showMessageDialog( this,
                    MessageFormat.format( bundle.getString("wizard.laf.n.a"), new String[]{ laf } ),
                    bundle.getString( "wizard.msgbox.title.error"), JOptionPane.ERROR_MESSAGE );
        }
    }

    public void actionPerformed( ActionEvent e )
    {
        String cmd = e.getActionCommand();
        inNavAction = true;
        if ( cmd.equals( CMD_CANCEL ) )
        {
            savePrefs();
            System.exit( 0 );
        }
        else if ( cmd.equals( CMD_PREFS ) )
        {
            PrefsDialog dlgPrefs = new PrefsDialog( this );
            dlgPrefs.show();
        }
        else if ( cmd.equals( CMD_NEXT ) )
            try
            {
                String next = currentForm.getNext();
                showForm( next );
            }
            catch ( NotReadyException ex )
            {
                JOptionPane.showMessageDialog( this, ex.getMessage(),
                        bundle.getString( "wizard.msgbox.title.noproceed" ), JOptionPane.ERROR_MESSAGE );
            }
        else if ( cmd.equals( CMD_PREV ) )
            try
            {
                String prev = currentForm.getPrev();
                showForm( prev );
            }
            catch ( NotReadyException ex )
            {
                JOptionPane.showMessageDialog( this, ex.getMessage(),
                        bundle.getString( "wizard.msgbox.title.noback" ), JOptionPane.ERROR_MESSAGE );
            }
        inNavAction = false;

    }

    private void showForm( String form )
    {
        if ( form == null )
            return;
        CardLayout layout = (CardLayout) forms.getLayout();
        if ( form.equals( FORM_START ) )
        {
            layout.show( this, form );
            currentForm = formStart;
        }
        else
        {
            layout.show( forms, FORM_TABS );
            tabForms.setSelectedIndex( form.charAt(0) - '0' - 3 );
            currentForm = (IWizardPanel) tabForms.getSelectedComponent();
        }
        currentForm.checkStatus();
    }

    public void stateChanged( ChangeEvent ce )
    {
        if ( inNavAction )
            return;
        int cur = currentForm.getName().charAt(0) - '0' - 3;
        int sel = tabForms.getSelectedIndex();
        if ( cur < sel )
        {
            int i;
            for ( i=cur; i<sel; i++ )
                try
                {
                    ((IWizardPanel) tabForms.getComponentAt( i ) ).getNext();
                }
                catch ( NotReadyException e )
                {
                    if ( e.getMessage() != null && e.getMessage().length() > 0 )
                        JOptionPane.showMessageDialog( this, e.getMessage(),
                                bundle.getString( "wizard.msgbox.title.noproceed" ), JOptionPane.ERROR_MESSAGE );
                    break;
                }
            tabForms.setSelectedIndex( i );
        }
        currentForm = (IWizardPanel) tabForms.getSelectedComponent();
        currentForm.checkStatus();
    }

    private void loadPrefs()
    {
        String path = new Db2Arff().getAppPath() + "/cahitarf.properties";

        File file = new File( path );
        String strFiles = null;
        String strDrivers = null;
        String strUrls = null;
        if ( file.exists() )
        {
            try
            {
                InputStream in = new FileInputStream( file );
                Properties tmp = new Properties();
                tmp.load( in );
                strFiles = tmp.getProperty( "files" );
                strDrivers = tmp.getProperty( "jdbc.drivers" );
                strUrls = tmp.getProperty( "jdbc.urls" );
                currentLaf = tmp.getProperty( "laf", "modern" );
                if ( "modern beos aqua cellshaded whistler".indexOf( currentLaf ) < 0 )
                    currentLaf = "cellshaded";
            }
            catch ( IOException e )
            {
                System.err.println( "Property file '" + path + "' not found." );
                // Do nothing
            }
        }
        prefsFiles = new LinkedList();
        str2Set( strFiles, prefsFiles );
        prefsJdbcDrivers = new HashSet();
        str2Set( strDrivers, prefsJdbcDrivers );
        prefsJdbcUrls = new HashSet();
        str2Set( strUrls, prefsJdbcUrls );
    }

    private void savePrefs()
    {
        String path = new Db2Arff().getAppPath() + "/cahitarf.properties";

        PrintStream out = null;
        try
        {
            out = new PrintStream( new FileOutputStream( path ) );
            out.println( "files=" + set2Str( prefsFiles ) );
            out.println( "laf=" + currentLaf );
            out.println( "jdbc.drivers=" + set2Str( prefsJdbcDrivers ) );
            out.println( "jdbc.urls=" + set2Str( prefsJdbcUrls ) );
        }
        catch ( FileNotFoundException e )
        {
            System.err.println( "Could not write preferences to " + path );
        }
    }

    private void str2Set( String str, Collection set )
    {
        if ( str != null && str.length() > 0 )
            for ( StringTokenizer st = new StringTokenizer( str, "|" ); st.hasMoreTokens(); )
                set.add( st.nextToken() );
    }

    private String set2Str( Collection set )
    {
        StringBuffer str = new StringBuffer();
        for ( Iterator i = set.iterator(); i.hasNext(); )
        {
            str.append( i.next() );
            if ( i.hasNext() )
                str.append("|\\\n\t");
        }
        return str.toString();
    }

    public static String getCurrentLaf()                        { return currentLaf; }

    public static ResourceBundle getBundle()                    { return bundle; }

    public static Properties getProperties()                    { return properties; }

    public static void setProperties( Properties properties )   { WizardFrame.properties = properties; }

}