/*

 * 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;

}