/*

 *

 * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

import javax.swing.*;

import javax.swing.event.*;

import javax.swing.text.*;

import javax.swing.border.*;

import javax.swing.colorchooser.*;

import javax.swing.filechooser.*;

import javax.accessibility.*;

import java.awt.*;

import java.awt.event.*;

import java.beans.*;

import java.util.*;

import java.io.*;

import java.applet.*;

import java.net.*;

/**

 * List Demo. This demo shows that it is not

 * always necessary to have an array of objects

 * as big as the size of the list stored.

 *

 * Indeed, in this example, there is no array

 * kept for the list data, rather it is generated

 * on the fly as only those elements are needed.

 *

 * @author Jeff Dinkins

 */

public class ListDemo extends DemoModule {

    JList list;

    JPanel prefixList;

    JPanel suffixList;

    Action prefixAction;

    Action suffixAction;

    GeneratedListModel listModel;

    Vector checkboxes = new Vector();

    /**

     * main method allows us to run as a standalone demo.

     */

    public static void main(String[] args) {

        ListDemo demo = new ListDemo(null);

        demo.mainImpl();

    }

    /**

     * ListDemo Constructor

     */

    public ListDemo(SwingSet2 swingset) {

        super(swingset, "ListDemo", "toolbar/JList.gif");

        loadImages();

        JLabel description = new JLabel(getString("ListDemo.description"));

        getDemoPanel().add(description, BorderLayout.NORTH);

        JPanel centerPanel = new JPanel();

        centerPanel.setLayout(new BoxLayout(centerPanel, BoxLayout.X_AXIS));

        centerPanel.add(Box.createRigidArea(HGAP10));

        getDemoPanel().add(centerPanel, BorderLayout.CENTER);

        JPanel listPanel = new JPanel();

        listPanel.setLayout(new BoxLayout(listPanel, BoxLayout.Y_AXIS));

        listPanel.add(Box.createRigidArea(VGAP10));

        centerPanel.add(listPanel);

        centerPanel.add(Box.createRigidArea(HGAP30));

        // Create the list

        list = new JList();

        list.setCellRenderer(new CompanyLogoListCellRenderer());

        listModel = new GeneratedListModel(this);

        list.setModel(listModel);

        // Set the preferred row count. This affects the preferredSize

        // of the JList when it's in a scrollpane.

        list.setVisibleRowCount(22);

        // Add list to a scrollpane

        JScrollPane scrollPane = new JScrollPane(list);

        listPanel.add(scrollPane);

        listPanel.add(Box.createRigidArea(VGAP10));

        // Add the control panel (holds the prefix/suffix list and prefix/suffix checkboxes)

        centerPanel.add(createControlPanel());

        // create prefixes and suffixes

        addPrefix("Tera", true);

        addPrefix("Micro", false);

        addPrefix("Southern", false);

        addPrefix("Net", true);

        addPrefix("YoYo", true);

        addPrefix("Northern", false);

        addPrefix("Tele", false);

        addPrefix("Eastern", false);

        addPrefix("Neo", false);

        addPrefix("Digi", false);

        addPrefix("National", false);

        addPrefix("Compu", true);

        addPrefix("Meta", true);

        addPrefix("Info", false);

        addPrefix("Western", false);

        addPrefix("Data", false);

        addPrefix("Atlantic", false);

        addPrefix("Advanced", false);

        addPrefix("Euro", false);

        addPrefix("Pacific", false);

        addPrefix("Mobile", false);

        addPrefix("In", false);

        addPrefix("Computa", false);

        addPrefix("Digital", false);

        addPrefix("Analog", false);

        addSuffix("Tech", true);

        addSuffix("Soft", true);

        addSuffix("Telecom", true);

        addSuffix("Solutions", false);

        addSuffix("Works", true);

        addSuffix("Dyne", false);

        addSuffix("Services", false);

        addSuffix("Vers", false);

        addSuffix("Devices", false);

        addSuffix("Software", false);

        addSuffix("Serv", false);

        addSuffix("Systems", true);

        addSuffix("Dynamics", true);

        addSuffix("Net", false);

        addSuffix("Sys", false);

        addSuffix("Computing", false);

        addSuffix("Scape", false);

        addSuffix("Com", false);

        addSuffix("Ware", false);

        addSuffix("Widgets", false);

        addSuffix("Media", false);

        addSuffix("Computer", false);

        addSuffix("Hardware", false);

        addSuffix("Gizmos", false);

        addSuffix("Concepts", false);

    }

    void updateDragEnabled(boolean dragEnabled) {

        list.setDragEnabled(dragEnabled);

    }

    public JPanel createControlPanel() {

        JPanel controlPanel = new JPanel() {

            Insets insets = new Insets(0, 4, 10, 10);

            public Insets getInsets() {

                return insets;

            }

        };

        controlPanel.setLayout(new BoxLayout(controlPanel, BoxLayout.X_AXIS));

        JPanel prefixPanel = new JPanel();

        prefixPanel.setLayout(new BoxLayout(prefixPanel, BoxLayout.Y_AXIS));

        prefixPanel.add(new JLabel(getString("ListDemo.prefixes")));

        JPanel suffixPanel = new JPanel();

        suffixPanel.setLayout(new BoxLayout(suffixPanel, BoxLayout.Y_AXIS));

        suffixPanel.add(new JLabel(getString("ListDemo.suffixes")));

        prefixList = new JPanel() {

            Insets insets = new Insets(0, 4, 0, 0);

            public Insets getInsets() {

                return insets;

            }

        };

        prefixList.setLayout(new BoxLayout(prefixList, BoxLayout.Y_AXIS));

        JScrollPane scrollPane = new JScrollPane(prefixList);

        scrollPane.getVerticalScrollBar().setUnitIncrement(10);

        prefixPanel.add(scrollPane);

        prefixPanel.add(Box.createRigidArea(HGAP10));

        suffixList = new JPanel() {

            Insets insets = new Insets(0, 4, 0, 0);

            public Insets getInsets() {

                return insets;

            }

        };

        suffixList.setLayout(new BoxLayout(suffixList, BoxLayout.Y_AXIS));

        scrollPane = new JScrollPane(suffixList);

        scrollPane.getVerticalScrollBar().setUnitIncrement(10);

        suffixPanel.add(scrollPane);

        suffixPanel.add(Box.createRigidArea(HGAP10));

        controlPanel.add(prefixPanel);

        controlPanel.add(Box.createRigidArea(HGAP15));

        controlPanel.add(suffixPanel);

        return controlPanel;

    }

    private FocusListener listFocusListener = new FocusAdapter() {

        public void focusGained(FocusEvent e) {

            JComponent c = (JComponent)e.getComponent();

            c.scrollRectToVisible(new Rectangle(0, 0, c.getWidth(), c.getHeight()));

        }

    };

    public void addPrefix(String prefix, boolean selected) {

        if(prefixAction == null) {

            prefixAction = new UpdatePrefixListAction(listModel);

        }

        final JCheckBox cb = (JCheckBox) prefixList.add(new JCheckBox(prefix));

        checkboxes.addElement(cb);

        cb.setSelected(selected);

        cb.addActionListener(prefixAction);

        if(selected) {

            listModel.addPrefix(prefix);

        }

        cb.addFocusListener(listFocusListener);

    }

    public void addSuffix(String suffix, boolean selected) {

        if(suffixAction == null) {

            suffixAction = new UpdateSuffixListAction(listModel);

        }

        final JCheckBox cb = (JCheckBox) suffixList.add(new JCheckBox(suffix));

        checkboxes.addElement(cb);

        cb.setSelected(selected);

        cb.addActionListener(suffixAction);

        if(selected) {

            listModel.addSuffix(suffix);

        }

        cb.addFocusListener(listFocusListener);

    }

    class UpdatePrefixListAction extends AbstractAction {

        GeneratedListModel listModel;

        protected UpdatePrefixListAction(GeneratedListModel listModel) {

            this.listModel = listModel;

        }

        public void actionPerformed(ActionEvent e) {

            JCheckBox cb = (JCheckBox) e.getSource();

            if(cb.isSelected()) {

                listModel.addPrefix(cb.getText());

            } else {

                listModel.removePrefix(cb.getText());

            }

        }

    }

    class UpdateSuffixListAction extends AbstractAction {

        GeneratedListModel listModel;

        protected UpdateSuffixListAction(GeneratedListModel listModel) {

            this.listModel = listModel;

        }

        public void actionPerformed(ActionEvent e) {

            JCheckBox cb = (JCheckBox) e.getSource();

            if(cb.isSelected()) {

                listModel.addSuffix(cb.getText());

            } else {

                listModel.removeSuffix(cb.getText());

            }

        }

    }

    class GeneratedListModel extends AbstractListModel {

        ListDemo demo;

        Permuter permuter;

        public Vector prefix = new Vector();

        public Vector suffix = new Vector();

        public GeneratedListModel (ListDemo demo) {

            this.demo = demo;

        }

        private void update() {

            permuter = new Permuter(getSize());

            fireContentsChanged(this, 0, getSize());

        }

        public void addPrefix(String s) {

            if(!prefix.contains(s)) {

                prefix.addElement(s);

                update();

            }

        }

        public void removePrefix(String s) {

            prefix.removeElement(s);

            update();

        }

        public void addSuffix(String s) {

            if(!suffix.contains(s)) {

                suffix.addElement(s);

                update();

            }

        }

        public void removeSuffix(String s) {

            suffix.removeElement(s);

            update();

        }

        public int getSize() {

            return prefix.size() * suffix.size();

        }

        public Object getElementAt(int index) {

            if(permuter == null) {

                update();

            }

            // morph the index to another int -- this has the benefit of

            // causing the list to look random.

            int j = permuter.map(index);

            int ps = prefix.size();

            int ss = suffix.size();

            return (String) prefix.elementAt(j%ps) + (String) suffix.elementAt((j/ps)%ss);

        }

    }

    ImageIcon[] images = new ImageIcon[7];

    void loadImages() {

            images[0] = createImageIcon("list/red.gif",  getString("ListDemo.red"));

            images[1] = createImageIcon("list/blue.gif",  getString("ListDemo.blue"));

            images[2] = createImageIcon("list/yellow.gif",  getString("ListDemo.yellow"));

            images[3] = createImageIcon("list/green.gif",  getString("ListDemo.green"));

            images[4] = createImageIcon("list/gray.gif",  getString("ListDemo.gray"));

            images[5] = createImageIcon("list/cyan.gif",  getString("ListDemo.cyan"));

            images[6] = createImageIcon("list/magenta.gif",  getString("ListDemo.magenta"));

    }

    class CompanyLogoListCellRenderer extends DefaultListCellRenderer {

       public Component getListCellRendererComponent(

            JList list,

            Object value,

            int index,

            boolean isSelected,

            boolean cellHasFocus)

        {

            Component retValue = super.getListCellRendererComponent(

                list, value, index, isSelected, cellHasFocus

            );

            setIcon(images[index%7]);

            return retValue;

        }

    }

}