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Java example source code file (WizardDlg.java)

This example Java source code file (WizardDlg.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

actionlistener, awt, backlistener, borderlayout, cancellistener, center, container, delegateaction, event, finishlistener, gui, jbutton, jpanel, nextlistener, string, swing, util, vector, wizarddlg

The WizardDlg.java Java example source code

/*
 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */


package com.sun.java.swing.ui;

import com.sun.java.swing.action.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;
import javax.swing.*;

// Referenced classes of package com.sun.java.swing.ui:
//            CommonUI

public class WizardDlg extends JDialog
{
    private class CancelListener
        implements ActionListener
    {

        public void actionPerformed(ActionEvent evt)
        {
            if(cancelListener != null)
                cancelListener.actionPerformed(evt);
            setVisible(false);
        }

        private CancelListener()
        {
        }

    }

    private class FinishListener
        implements ActionListener
    {

        public void actionPerformed(ActionEvent evt)
        {
            if(finishListener != null)
                finishListener.actionPerformed(evt);
            setVisible(false);
        }

        private FinishListener()
        {
        }

    }

    private class NextListener
        implements ActionListener
    {

        public void actionPerformed(ActionEvent evt)
        {
            cardShowing++;
            if(cardShowing > numCards)
                cardShowing = numCards;
            else
                panesLayout.next(panesPanel);
            if(nextListener != null)
                nextListener.actionPerformed(evt);
            enableBackNextButtons();
        }

        private NextListener()
        {
        }

    }

    private class BackListener
        implements ActionListener
    {

        public void actionPerformed(ActionEvent evt)
        {
            cardShowing--;
            if(cardShowing < 1)
                cardShowing = 1;
            else
                panesLayout.previous(panesPanel);
            if(backListener != null)
                backListener.actionPerformed(evt);
            enableBackNextButtons();
        }

        private BackListener()
        {
        }

    }


    public WizardDlg(JFrame frame, String title, Vector panels, Vector images)
    {
        super(frame, title, true);
        this.title = title;
        this.images = images;
        Container pane = getContentPane();
        pane.setLayout(new BorderLayout());
        panesLayout = new CardLayout();
        panesPanel = new JPanel(panesLayout);
        pane.add(panesPanel, "Center");
        pane.add(createButtonPanel(), "South");
        setPanels(panels);
        pack();
        CommonUI.centerComponent(this);
    }

    public WizardDlg(JFrame frame, String title, Vector panels)
    {
        this(frame, title, panels, null);
    }

    public WizardDlg(String title, Vector panels)
    {
        this(new JFrame(), title, panels, null);
    }

    public void setPanels(Vector panels)
    {
        numCards = panels.size();
        cardShowing = 1;
        this.panels = panels;
        panesPanel.removeAll();
        for(int i = 0; i < numCards; i++)
            panesPanel.add((JPanel)panels.elementAt(i), (new Integer(i)).toString());

        validate();
        enableBackNextButtons();
    }

    public void reset()
    {
        cardShowing = 1;
        panesLayout.first(panesPanel);
        enableBackNextButtons();
    }

    public void setWestPanel(JPanel panel)
    {
        Container pane = getContentPane();
        pane.add(panel, "West");
    }

    public static void main(String args[])
    {
        JPanel p1 = new JPanel();
        p1.add(new JButton("One"));
        JPanel p2 = new JPanel();
        p2.add(new JButton("Two"));
        JPanel p3 = new JPanel();
        p3.add(new JButton("Three"));
        JPanel p4 = new JPanel();
        p4.add(new JButton("Four"));
        Vector panels = new Vector();
        panels.addElement(p1);
        panels.addElement(p2);
        panels.addElement(p3);
        panels.addElement(p4);
        wizardDlg = new WizardDlg("Test Dialog", panels);
        wizardDlg.addFinishListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt)
            {
                System.exit(0);
            }

        }
);
        wizardDlg.addCancelListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt)
            {
                System.exit(0);
            }

        }
);
        wizardDlg.setVisible(true);
    }

    private JPanel createButtonPanel()
    {
        JPanel panel = new JPanel();
        backAction = new BackAction();
        nextAction = new NextAction();
        finishAction = new FinishAction();
        cancelAction = new CancelAction();
        backAction.setEnabled(false);
        finishAction.setEnabled(false);
        backAction.addActionListener(new BackListener());
        nextAction.addActionListener(new NextListener());
        finishAction.addActionListener(new FinishListener());
        cancelAction.addActionListener(new CancelListener());
        panel.add(CommonUI.createButton(backAction));
        panel.add(CommonUI.createButton(nextAction));
        panel.add(CommonUI.createButton(finishAction));
        panel.add(CommonUI.createButton(cancelAction));
        JPanel p2 = new JPanel(new BorderLayout());
        p2.add(panel, "Center");
        p2.add(new JSeparator(), "North");
        return p2;
    }

    private void enableBackNextButtons()
    {
        if(cardShowing == 1)
        {
            backAction.setEnabled(false);
            finishAction.setEnabled(false);
            if(numCards > 1)
            {
                nextAction.setEnabled(true);
            } else
            {
                finishAction.setEnabled(true);
                nextAction.setEnabled(false);
            }
        } else
        if(cardShowing == numCards)
        {
            nextAction.setEnabled(false);
            finishAction.setEnabled(true);
            if(numCards > 1)
                backAction.setEnabled(true);
            else
                backAction.setEnabled(false);
        } else
        {
            backAction.setEnabled(true);
            nextAction.setEnabled(true);
            finishAction.setEnabled(false);
        }
        setTitle();
    }

    private void setTitle()
    {
        JPanel panel = (JPanel)panels.elementAt(cardShowing - 1);
        String newTitle = title;
        String panelTitle = panel.getName();
        if(panelTitle != null && panelTitle.equals(""))
        {
            newTitle = newTitle + " - ";
            newTitle = newTitle + panelTitle;
        }
        super.setTitle(newTitle);
    }

    public synchronized void addFinishListener(ActionListener l)
    {
        finishListener = AWTEventMulticaster.add(finishListener, l);
    }

    public synchronized void removeFinishListener(ActionListener l)
    {
        finishListener = AWTEventMulticaster.remove(finishListener, l);
    }

    public synchronized void addCancelListener(ActionListener l)
    {
        cancelListener = AWTEventMulticaster.add(cancelListener, l);
    }

    public synchronized void removeCancelListener(ActionListener l)
    {
        cancelListener = AWTEventMulticaster.remove(cancelListener, l);
    }

    public synchronized void addNextListener(ActionListener l)
    {
        nextListener = AWTEventMulticaster.add(nextListener, l);
    }

    public synchronized void removeNextListener(ActionListener l)
    {
        nextListener = AWTEventMulticaster.remove(nextListener, l);
    }

    public synchronized void addBackListener(ActionListener l)
    {
        backListener = AWTEventMulticaster.add(backListener, l);
    }

    public synchronized void removeBackListener(ActionListener l)
    {
        backListener = AWTEventMulticaster.remove(backListener, l);
    }

    private CardLayout panesLayout;
    private JPanel panesPanel;
    private DelegateAction backAction;
    private DelegateAction nextAction;
    private DelegateAction finishAction;
    private DelegateAction cancelAction;
    private ActionListener finishListener;
    private ActionListener cancelListener;
    private ActionListener nextListener;
    private ActionListener backListener;
    private int numCards;
    private int cardShowing;
    private String title;
    private Vector panels;
    private Vector images;
    private static WizardDlg wizardDlg;




}

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