/*****************************************************************************
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of the HDF Java Products distribution.                  *
 * The full copyright notice, including terms governing use, modification,   *
 * and redistribution, is contained in the file COPYING.                     *
 * COPYING can be found at the root of the source code distribution tree.    *
 * If you do not have access to this file, you may request a copy from       *
 * help@hdfgroup.org.                                                        *
 ****************************************************************************/

package hdf.view;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GraphicsEnvironment;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.File;
import java.util.Vector;

import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;
import javax.swing.border.BevelBorder;
import javax.swing.border.SoftBevelBorder;
import javax.swing.border.TitledBorder;

/**
 * UserOptionsDialog displays components for choosing user options.
 *
 * @author Peter X. Cao
 * @version 2.4 9/6/2007
 */
public class UserOptionsDialog extends JDialog implements ActionListener, ItemListener
{
    private static final long     serialVersionUID = -8521813136101442590L;

    private final static org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(UserOptionsDialog.class);

    /**
     * The main HDFView.
     */
    private final JFrame          viewer;

    private String                H4toH5Path;
    private JTextField            H4toH5Field, UGField, workField, fileExtField, maxMemberField, startMemberField;
    @SuppressWarnings("rawtypes")
    private JComboBox             fontSizeChoice, fontTypeChoice, delimiterChoice, imageOriginChoice, indexBaseChoice;
    @SuppressWarnings("rawtypes")
    private JComboBox             choiceTreeView, choiceMetaDataView, choiceTextView, choiceTableView, choiceImageView,
    choicePaletteView;
    private String                rootDir, workDir;
    private JCheckBox             checkCurrentUserDir, checkAutoContrast, checkConvertEnum, checkShowValues, checkShowRegRefValues;
    private JButton               currentDirButton;
    private JRadioButton          checkReadOnly, checkIndexType, checkIndexOrder, checkIndexNative, checkLibVersion,
                                  checkReadAll;

    private int                   fontSize;

    private boolean               isFontChanged;

    private boolean               isUserGuideChanged;

    private boolean               isWorkDirChanged;

    /** default index type for files */
    private static String         indexType;

    /** default index ordering for files */
    private static String         indexOrder;

    /** a list of tree view implementation. */
    private static Vector<String> treeViews;

    /** a list of image view implementation. */
    private static Vector<String> imageViews;

    /** a list of tree table implementation. */
    private static Vector<String> tableViews;

    /** a list of Text view implementation. */
    private static Vector<String> textViews;

    /** a list of metadata view implementation. */
    private static Vector<String> metaDataViews;

    /** a list of palette view implementation. */
    private static Vector<String> paletteViews;

    // private JList srbJList;
    // private JTextField srbFields[];
    // private Vector srbVector;

    /**
     * constructs an UserOptionsDialog.
     *
     * @param view
     *            The HDFView.
     * @param viewroot
     *            The root directory of HDFView
     */
    public UserOptionsDialog(JFrame view, String viewroot) {
        super(view, "User Options", true);

        viewer = view;
        rootDir = viewroot;
        isFontChanged = false;
        isUserGuideChanged = false;
        isWorkDirChanged = false;
        // srbJList = null;
        fontSize = ViewProperties.getFontSize();
        workDir = ViewProperties.getWorkDir();
        if (workDir == null) {
            workDir = rootDir;
        }
        log.trace("UserOptionsDialog: workDir={}", workDir);
        treeViews = ViewProperties.getTreeViewList();
        metaDataViews = ViewProperties.getMetaDataViewList();
        textViews = ViewProperties.getTextViewList();
        tableViews = ViewProperties.getTableViewList();
        imageViews = ViewProperties.getImageViewList();
        paletteViews = ViewProperties.getPaletteViewList();
        // srbVector = ViewProperties.getSrbAccount();
        indexType = ViewProperties.getIndexType();
        indexOrder = ViewProperties.getIndexOrder();

        JPanel contentPane = (JPanel) getContentPane();
        contentPane.setLayout(new BorderLayout(8, 8));
        contentPane.setBorder(BorderFactory.createEmptyBorder(15, 5, 5, 5));

        int w = 700 + (ViewProperties.getFontSize() - 12) * 15;
        int h = 550 + (ViewProperties.getFontSize() - 12) * 16;
        contentPane.setPreferredSize(new Dimension(w, h));

        JTabbedPane tabbedPane = new JTabbedPane();

        tabbedPane.addTab("General Setting", createGeneralOptionPanel());
        tabbedPane.addTab("Default Module", createModuleOptionPanel());

        /*
         * try { Class.forName("hdf.srb.SRBFileDialog");
         * tabbedPane.addTab("SRB Connection", createSrbConnectionPanel()); }
         * catch (Exception ex) {;}
         */

        tabbedPane.setSelectedIndex(0);

        JPanel buttonP = new JPanel();
        JButton b = new JButton("   Ok   ");
        b.setActionCommand("Set options");
        b.addActionListener(this);
        b.setName("Ok");
        buttonP.add(b);
        b = new JButton("Cancel");
        b.setActionCommand("Cancel");
        b.addActionListener(this);
        buttonP.add(b);

        contentPane.add("Center", tabbedPane);
        contentPane.add("South", buttonP);

        // locate the H5Property dialog
        Point l = getParent().getLocation();
        l.x += 250;
        l.y += 80;
        setLocation(l);
        validate();
        pack();
    }

    public void setVisible(boolean b) {
        if (b) { // reset flags
            isFontChanged = false;
            isUserGuideChanged = false;
            isWorkDirChanged = false;
            fontSize = ViewProperties.getFontSize();
            workDir = ViewProperties.getWorkDir();
            if (workDir == null) {
                workDir = rootDir;
            }
            log.trace("UserOptionsDialog:setVisible workDir={}", workDir);
        }
        super.setVisible(b);
    }

    @SuppressWarnings({ "unchecked", "rawtypes" })
    private JPanel createGeneralOptionPanel() {
        String[] fontSizeChoices = { "12", "14", "16", "18", "20", "22", "24", "26", "28", "30", "32", "34", "36", "48" };
        fontSizeChoice = new JComboBox(fontSizeChoices);
        fontSizeChoice.setSelectedItem(String.valueOf(ViewProperties.getFontSize()));

        String[] fontNames = GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
        String fname = ViewProperties.getFontType();
        fontTypeChoice = new JComboBox(fontNames);

        boolean isFontValid = false;
        if (fontNames != null) {
            for (int i = 0; i < fontNames.length; i++) {
                if (fontNames[i].equalsIgnoreCase(fname)) {
                    isFontValid = true;
                }
            }
        }
        if (!isFontValid) {
            fname = (viewer).getFont().getFamily();
            ViewProperties.setFontType(fname);
        }
        fontTypeChoice.setSelectedItem(fname);

        String[] delimiterChoices = { ViewProperties.DELIMITER_TAB, ViewProperties.DELIMITER_COMMA,
                ViewProperties.DELIMITER_SPACE, ViewProperties.DELIMITER_COLON, ViewProperties.DELIMITER_SEMI_COLON };
        delimiterChoice = new JComboBox(delimiterChoices);
        delimiterChoice.setSelectedItem(ViewProperties.getDataDelimiter());

        String[] imageOriginChoices = { ViewProperties.ORIGIN_UL, ViewProperties.ORIGIN_LL, ViewProperties.ORIGIN_UR,
                ViewProperties.ORIGIN_LR };
        imageOriginChoice = new JComboBox(imageOriginChoices);
        imageOriginChoice.setSelectedItem(ViewProperties.getImageOrigin());

        JPanel centerP = new JPanel();
        GridBagConstraints c = new GridBagConstraints();
        // natural height, maximum width
        c.fill = GridBagConstraints.HORIZONTAL;
        c.weightx = 0.5;
        c.fill = GridBagConstraints.HORIZONTAL;
        centerP.setLayout(new GridBagLayout());
        centerP.setBorder(new SoftBevelBorder(BevelBorder.LOWERED));

        JPanel p0 = new JPanel();
        p0.setLayout(new BorderLayout());
        p0.add(checkCurrentUserDir = new JCheckBox("\"Current Working Directory\" or", false), BorderLayout.WEST);
        checkCurrentUserDir.addActionListener(this);
        checkCurrentUserDir.setActionCommand("Set current dir to user.home");
        p0.add(workField = new JTextField(workDir), BorderLayout.CENTER);
        JButton b = new JButton("Browse...");
        currentDirButton = b;
        b.setActionCommand("Browse current dir");
        b.addActionListener(this);
        p0.add(b, BorderLayout.EAST);
        TitledBorder tborder = new TitledBorder("Default Working Directory");
        tborder.setTitleColor(Color.darkGray);
        p0.setBorder(tborder);
        c.gridx = 0;
        c.gridy = 0;
        centerP.add(p0, c);

        p0 = new JPanel();
        p0.setLayout(new BorderLayout());
        p0.add(new JLabel("User's Guide:  "), BorderLayout.WEST);
        p0.add(UGField = new JTextField(ViewProperties.getUsersGuide()), BorderLayout.CENTER);
        b = new JButton("Browse...");
        b.setActionCommand("Browse UG");
        b.addActionListener(this);
        p0.add(b, BorderLayout.EAST);
        tborder = new TitledBorder("Help Document");
        tborder.setTitleColor(Color.darkGray);
        p0.setBorder(tborder);
        c.gridx = 0;
        c.gridy = 1;
        centerP.add(p0, c);

        p0 = new JPanel();
        p0.setLayout(new GridLayout(1, 3, 8, 8));

        JPanel p00 = new JPanel();
        p00.setLayout(new BorderLayout());
        p00.add(new JLabel("Extension: "), BorderLayout.WEST);
        p00.add(fileExtField = new JTextField(ViewProperties.getFileExtension()), BorderLayout.CENTER);
        tborder = new TitledBorder("File Extension");
        tborder.setTitleColor(Color.darkGray);
        p00.setBorder(tborder);

        JPanel p01 = new JPanel();
        p01.setLayout(new GridLayout(1, 2, 8, 8));
        p01.add(checkReadOnly = new JRadioButton("Read Only", ViewProperties.isReadOnly()));
        JRadioButton rw = new JRadioButton("Read/Write", !ViewProperties.isReadOnly());
        p01.add(rw);
        ButtonGroup bgrp = new ButtonGroup();
        bgrp.add(checkReadOnly);
        bgrp.add(rw);
        tborder = new TitledBorder("Default File Access Mode");
        tborder.setTitleColor(Color.darkGray);
        p01.setBorder(tborder);

        JPanel p02 = new JPanel();
        p02.setLayout(new GridLayout(1, 2, 8, 8));
        p02.add(checkLibVersion = new JRadioButton("Earliest", ViewProperties.isEarlyLib()));
        JRadioButton latestLib = new JRadioButton("Latest", !ViewProperties.isEarlyLib());
        p02.add(latestLib);
        bgrp = new ButtonGroup();
        bgrp.add(checkLibVersion);
        bgrp.add(latestLib);
        tborder = new TitledBorder("Default Lib Version");
        tborder.setTitleColor(Color.darkGray);
        p02.setBorder(tborder);

        p0.add(p01);
        p0.add(p00);
        p0.add(p02);
        c.gridx = 0;
        c.gridy = 2;
        centerP.add(p0, c);

        p0 = new JPanel();
        p0.setLayout(new GridLayout(1, 2, 8, 8));
        p00 = new JPanel();
        p00.setLayout(new BorderLayout());
        p00.add(new JLabel("Font Size:"), BorderLayout.WEST);
        p00.add(fontSizeChoice, BorderLayout.CENTER);
        p0.add(p00);
        p00 = new JPanel();
        p00.setLayout(new BorderLayout());
        p00.add(new JLabel("Font Type:"), BorderLayout.WEST);
        p00.add(fontTypeChoice, BorderLayout.CENTER);
        p0.add(p00);
        tborder = new TitledBorder("Text Font");
        tborder.setTitleColor(Color.darkGray);
        p0.setBorder(tborder);
        c.gridx = 0;
        c.gridy = 3;
        centerP.add(p0, c);

        p0 = new JPanel();
        p0.setLayout(new GridLayout(1, 4, 8, 8));

        p00 = new JPanel();
        p00.setLayout(new BorderLayout());
        checkAutoContrast = new JCheckBox("Autogain Image Contrast");
        checkAutoContrast.setSelected(ViewProperties.isAutoContrast());
        checkAutoContrast.setName("autogain");
        p00.add(checkAutoContrast, BorderLayout.CENTER);
        JButton button = new JButton(ViewProperties.getHelpIcon());
        button.setToolTipText("Help on Auto Contrast");
        button.setMargin(new Insets(0, 0, 0, 0));
        button.addActionListener(this);
        button.setActionCommand("Help on Auto Contrast");
        p00.add(button, BorderLayout.WEST);
        p0.add(p00);

        p0.add(checkShowValues = new JCheckBox("Show Values"));
        checkShowValues.setSelected(ViewProperties.showImageValues());

        p00 = new JPanel();
        p00.setLayout(new BorderLayout());
        p00.add(new JLabel("Image Origin:"), BorderLayout.WEST);
        p00.add(imageOriginChoice, BorderLayout.CENTER);
        p0.add(p00);

        tborder = new TitledBorder("Image");
        tborder.setTitleColor(Color.darkGray);
        p0.setBorder(tborder);
        c.gridx = 0;
        c.gridy = 4;
        centerP.add(p0, c);

        p0 = new JPanel();
        p0.setLayout(new GridLayout(2, 3, 20, 4));

        p00 = new JPanel();
        p00.setLayout(new BorderLayout());
        button = new JButton(ViewProperties.getHelpIcon());
        button.setToolTipText("Help on Convert Enum");
        button.setMargin(new Insets(0, 0, 0, 0));
        button.addActionListener(this);
        button.setActionCommand("Help on Convert Enum");
        p00.add(button, BorderLayout.WEST);
        checkConvertEnum = new JCheckBox("Convert Enum");
        checkConvertEnum.setSelected(ViewProperties.isConvertEnum());
        p00.add(checkConvertEnum, BorderLayout.CENTER);
        p0.add(p00, BorderLayout.NORTH);

        checkShowRegRefValues = new JCheckBox("Show RegRef Values");
        checkShowRegRefValues.setSelected(ViewProperties.showRegRefValues());
        p0.add(checkShowRegRefValues, BorderLayout.NORTH);

        p00 = new JPanel();
        p00.setLayout(new BorderLayout());

        String[] indexBaseChoices = { "0-based", "1-based" };
        indexBaseChoice = new JComboBox(indexBaseChoices);
        if (ViewProperties.isIndexBase1())
            indexBaseChoice.setSelectedIndex(1);
        else
            indexBaseChoice.setSelectedIndex(0);

        p00.add(new JLabel("Index Base: "), BorderLayout.WEST);
        p00.add(indexBaseChoice, BorderLayout.CENTER);
        p0.add(p00, BorderLayout.SOUTH);

        p00 = new JPanel();
        p00.setLayout(new BorderLayout());
        p00.add(new JLabel("Data Delimiter:"), BorderLayout.WEST);
        p00.add(delimiterChoice, BorderLayout.CENTER);
        p0.add(p00, BorderLayout.SOUTH);

        tborder = new TitledBorder("Data");
        tborder.setTitleColor(Color.darkGray);
        p0.setBorder(tborder);
        c.gridx = 0;
        c.gridy = 5;
        centerP.add(p0, c);

        p0 = new JPanel();
        p0.setLayout(new GridLayout(1, 3, 8, 8));

        int nMax = ViewProperties.getMaxMembers();
        checkReadAll = new JRadioButton("Open All", (nMax<=0) || (nMax==Integer.MAX_VALUE));
        checkReadAll.addItemListener(this);
        p0.add(checkReadAll);

        p00 = new JPanel();
        p00.setLayout(new BorderLayout());
        p00.add(new JLabel("Start Member: "), BorderLayout.WEST);
        p00.add(startMemberField = new JTextField(String.valueOf(ViewProperties.getStartMembers())),
                BorderLayout.CENTER);
        p0.add(p00);

        p00 = new JPanel();
        p00.setLayout(new BorderLayout());
        p00.add(new JLabel("Member Count: "), BorderLayout.WEST);
        p00.add(maxMemberField = new JTextField(String.valueOf(ViewProperties.getMaxMembers())), BorderLayout.CENTER);
        p0.add(p00);

          startMemberField.setEnabled(!checkReadAll.isSelected());
           maxMemberField.setEnabled(!checkReadAll.isSelected());

        tborder = new TitledBorder("Objects to Open");
        tborder.setTitleColor(Color.darkGray);
        p0.setBorder(tborder);
        c.gridx = 0;
        c.gridy = 6;
        centerP.add(p0, c);

        p0 = new JPanel();
        p0.setLayout(new GridLayout(1, 2, 8, 8));

        JPanel pType = new JPanel();
        pType.setLayout(new GridLayout(1, 2, 8, 8));
        checkIndexType = new JRadioButton("By Name", indexType.compareTo("H5_INDEX_NAME") == 0);
        pType.add(checkIndexType);
        JRadioButton checkIndexCreateOrder = new JRadioButton("By Creation Order",
                indexType.compareTo("H5_INDEX_CRT_ORDER") == 0);
        pType.add(checkIndexCreateOrder);
        ButtonGroup bTypegrp = new ButtonGroup();
        bTypegrp.add(checkIndexType);
        bTypegrp.add(checkIndexCreateOrder);
        tborder = new TitledBorder("Indexing Type");
        tborder.setTitleColor(Color.darkGray);
        pType.setBorder(tborder);
        p0.add(pType);

        JPanel pOrder = new JPanel();
        pOrder.setLayout(new GridLayout(1, 3, 8, 8));
        checkIndexOrder = new JRadioButton("Increments", indexOrder.compareTo("H5_ITER_INC") == 0);
        pOrder.add(checkIndexOrder);
        JRadioButton checkIndexDecrement = new JRadioButton("Decrements", indexOrder.compareTo("H5_ITER_DEC") == 0);
        pOrder.add(checkIndexDecrement);
        checkIndexNative = new JRadioButton("Native", indexOrder.compareTo("H5_ITER_NATIVE") == 0);
        pOrder.add(checkIndexNative);
        ButtonGroup bOrdergrp = new ButtonGroup();
        bOrdergrp.add(checkIndexOrder);
        bOrdergrp.add(checkIndexDecrement);
        bOrdergrp.add(checkIndexNative);
        tborder = new TitledBorder("Indexing Order");
        tborder.setTitleColor(Color.darkGray);
        pOrder.setBorder(tborder);
        p0.add(pOrder);

        tborder = new TitledBorder("Display Indexing Options");
        tborder.setTitleColor(Color.darkGray);
        p0.setBorder(tborder);
        c.gridx = 0;
        c.gridy = 7;
        centerP.add(p0, c);

        if (workDir.equals(System.getProperty("user.home"))) {
            checkCurrentUserDir.setSelected(true);
            workField.setEnabled(false);
        }

        return centerP;
    }

    @SuppressWarnings({ "unchecked", "rawtypes" })
    private JPanel createModuleOptionPanel() {
        choiceTreeView = new JComboBox(treeViews);
        choiceTableView = new JComboBox(tableViews);
        choiceTextView = new JComboBox(textViews);
        choiceImageView = new JComboBox(imageViews);
        choiceMetaDataView = new JComboBox(metaDataViews);
        choicePaletteView = new JComboBox(paletteViews);

        JPanel moduleP = new JPanel();
        moduleP.setLayout(new GridLayout(6, 1, 10, 10));
        moduleP.setBorder(new SoftBevelBorder(BevelBorder.LOWERED));

        JPanel treeP = new JPanel();
        TitledBorder tborder = new TitledBorder("TreeView");
        tborder.setTitleColor(Color.darkGray);
        treeP.setBorder(tborder);
        moduleP.add(treeP);
        treeP.setLayout(new BorderLayout(5, 5));
        treeP.add(choiceTreeView, BorderLayout.CENTER);

        JPanel attrP = new JPanel();
        tborder = new TitledBorder("MetaDataView");
        tborder.setTitleColor(Color.darkGray);
        attrP.setBorder(tborder);
        moduleP.add(attrP);
        attrP.setLayout(new BorderLayout(5, 5));
        attrP.add(choiceMetaDataView, BorderLayout.CENTER);

        JPanel textP = new JPanel();
        tborder = new TitledBorder("TextView");
        tborder.setTitleColor(Color.darkGray);
        textP.setBorder(tborder);
        moduleP.add(textP);
        textP.setLayout(new BorderLayout(5, 5));
        textP.add(choiceTextView, BorderLayout.CENTER);

        JPanel tableP = new JPanel();
        tborder = new TitledBorder("TableView");
        tborder.setTitleColor(Color.darkGray);
        tableP.setBorder(tborder);
        moduleP.add(tableP);
        tableP.setLayout(new BorderLayout(5, 5));
        tableP.add(choiceTableView, BorderLayout.CENTER);

        JPanel imageP = new JPanel();
        tborder = new TitledBorder("ImageView");
        tborder.setTitleColor(Color.darkGray);
        imageP.setBorder(tborder);
        moduleP.add(imageP);
        imageP.setLayout(new BorderLayout(5, 5));
        imageP.add(choiceImageView, BorderLayout.CENTER);

        JPanel palP = new JPanel();
        tborder = new TitledBorder("PaletteView");
        tborder.setTitleColor(Color.darkGray);
        palP.setBorder(tborder);
        moduleP.add(palP);
        palP.setLayout(new BorderLayout(5, 5));
        palP.add(choicePaletteView, BorderLayout.CENTER);

        return moduleP;
    }

    /*
     * private JPanel createSrbConnectionPanel() { JPanel p = new JPanel();
     * p.setLayout(new BorderLayout(5,5)); TitledBorder tborder = new
     * TitledBorder("SRB Connections"); tborder.setTitleColor(Color.darkGray);
     * p.setBorder(tborder);
     *
     * DefaultListModel listModel = new DefaultListModel(); srbJList = new
     * JList(listModel);
     * srbJList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
     * srbJList.addListSelectionListener(this);
     *
     * srbFields = new JTextField[7];
     *
     * if (srbVector!= null) { int n=srbVector.size();
     *
     * String srbaccount[] = null; for (int i=0; i<n; i++) { srbaccount =
     * (String[])srbVector.get(i); if (srbaccount != null) {
     * listModel.addElement(srbaccount[0]); } } }
     *
     * JPanel cp = new JPanel(); cp.setLayout(new BorderLayout(5,5));
     *
     * JPanel cpc = new JPanel(); cpc.setLayout(new GridLayout(7,1,5,5));
     * cpc.add(srbFields[0] = new JTextField()); cpc.add(srbFields[1] = new
     * JTextField()); cpc.add(srbFields[2] = new JTextField());
     * cpc.add(srbFields[3] = new JTextField()); cpc.add(srbFields[4] = new
     * JTextField()); cpc.add(srbFields[5] = new JTextField());
     * cpc.add(srbFields[6] = new JTextField()); cp.add(cpc,
     * BorderLayout.CENTER);
     *
     * JPanel cpl = new JPanel(); cpl.setLayout(new GridLayout(7,1,5,5));
     * cpl.add(new JLabel("Host Machine: ", SwingConstants.RIGHT)); cpl.add(new
     * JLabel("Port Number: ", SwingConstants.RIGHT)); cpl.add(new
     * JLabel("User Name: ", SwingConstants.RIGHT)); cpl.add(new
     * JLabel("Password: ", SwingConstants.RIGHT)); cpl.add(new
     * JLabel("Home Directory: ", SwingConstants.RIGHT)); cpl.add(new
     * JLabel("Domain Name/Zone: ", SwingConstants.RIGHT)); cpl.add(new
     * JLabel(" Default Storage Resource: ", SwingConstants.RIGHT)); cp.add(cpl,
     * BorderLayout.WEST);
     *
     * JPanel lp = new JPanel(); lp.setLayout(new BorderLayout(5,5)); JPanel lpb
     * = new JPanel(); JButton add = new JButton("Save");
     * add.addActionListener(this); add.setActionCommand("Add srb connsction");
     * lpb.add(add); JButton del = new JButton("Delete");
     * del.addActionListener(this);
     * del.setActionCommand("Delete srb connsction"); lpb.add(del); lp.add(lpb,
     * BorderLayout.SOUTH); JScrollPane listScroller = new
     * JScrollPane(srbJList); int w = 120 +
     * (ViewProperties.getFontSize()-12)*10; int h = 200 +
     * (ViewProperties.getFontSize()-12)*15; listScroller.setPreferredSize(new
     * Dimension(w, h)); lp.add(listScroller, BorderLayout.CENTER);
     *
     * JPanel sp = new JPanel(); sp.setLayout(new GridLayout(3,1,5,15));
     * sp.add(new JLabel(" "));
     *
     * p.add(cp, BorderLayout.CENTER); p.add(lp, BorderLayout.WEST); p.add(sp,
     * BorderLayout.SOUTH);
     *
     * if ((srbVector !=null) && (srbVector.size()>0)) {
     * srbJList.setSelectedIndex(0); }
     *
     * return p; }
     */

    @SuppressWarnings("unchecked")
    public void actionPerformed(ActionEvent e) {
        Object source = e.getSource();
        String cmd = e.getActionCommand();

        if (cmd.equals("Set options")) {
            setUserOptions();
            setVisible(false);
        }
        else if (cmd.equals("Cancel")) {
            isFontChanged = false;
            setVisible(false);
        }
        else if (cmd.equals("Set current dir to user.home")) {
            boolean isCheckCurrentUserDirSelected = checkCurrentUserDir.isSelected();
            workField.setEnabled(!isCheckCurrentUserDirSelected);
            currentDirButton.setEnabled(!isCheckCurrentUserDirSelected);
        }
        else if (cmd.equals("Browse UG")) {
            final JFileChooser fchooser = new JFileChooser(rootDir);
            int returnVal = fchooser.showOpenDialog(this);

            if (returnVal != JFileChooser.APPROVE_OPTION) {
                return;
            }

            File choosedFile = fchooser.getSelectedFile();
            if (choosedFile == null) {
                return;
            }

            String fname = choosedFile.getAbsolutePath();
            if (fname == null) {
                return;
            }
            UGField.setText(fname);
        }
        else if (cmd.equals("Browse current dir")) {
            final JFileChooser fchooser = new JFileChooser(workDir);
            fchooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
            int returnVal = fchooser.showDialog(this, "Select");

            if (returnVal != JFileChooser.APPROVE_OPTION) {
                return;
            }

            File choosedFile = fchooser.getSelectedFile();
            if (choosedFile == null) {
                return;
            }

            String fname = choosedFile.getAbsolutePath();
            if (fname == null) {
                return;
            }
            workField.setText(fname);
        }
        else if (cmd.equals("Browse h4toh5")) {
            final JFileChooser fchooser = new JFileChooser(rootDir);
            int returnVal = fchooser.showOpenDialog(this);

            if (returnVal != JFileChooser.APPROVE_OPTION) {
                return;
            }

            File choosedFile = fchooser.getSelectedFile();
            if (choosedFile == null) {
                return;
            }

            String fname = choosedFile.getAbsolutePath();
            if (fname == null) {
                return;
            }
            H4toH5Path = fname;
            H4toH5Field.setText(fname);
        }
        else if (cmd.startsWith("Add Module")) {
            String newModule = JOptionPane.showInputDialog(this, "Type the full path of the new module:", cmd,
                    JOptionPane.PLAIN_MESSAGE);

            if ((newModule == null) || (newModule.length() < 1)) {
                return;
            }

            // enables use of JHDF5 in JNLP (Web Start) applications, the system
            // class loader with reflection first.
            try {
                Class.forName(newModule);
            }
            catch (Exception ex) {
                try {
                    ViewProperties.loadExtClass().loadClass(newModule);
                }
                catch (ClassNotFoundException ex2) {
                    JOptionPane.showMessageDialog(this, "Cannot find module:\n " + newModule
                            + "\nPlease check the module name and classpath.", "HDFView", JOptionPane.ERROR_MESSAGE);
                    return;
                }
            }

            if (cmd.endsWith("TreeView") && !treeViews.contains(newModule)) {
                treeViews.add(newModule);
                choiceTreeView.addItem(newModule);
            }
            else if (cmd.endsWith("MetadataView") && !metaDataViews.contains(newModule)) {
                metaDataViews.add(newModule);
                choiceMetaDataView.addItem(newModule);
            }
            else if (cmd.endsWith("TextView") && !textViews.contains(newModule)) {
                textViews.add(newModule);
                choiceTextView.addItem(newModule);
            }
            else if (cmd.endsWith("TableView") && !tableViews.contains(newModule)) {
                tableViews.add(newModule);
                choiceTableView.addItem(newModule);
            }
            else if (cmd.endsWith("ImageView") && !imageViews.contains(newModule)) {
                imageViews.add(newModule);
                choiceImageView.addItem(newModule);
            }
            else if (cmd.endsWith("PaletteView") && !paletteViews.contains(newModule)) {
                paletteViews.add(newModule);
                choicePaletteView.addItem(newModule);
            }
        }
        else if (cmd.startsWith("Delete Module")) {
            @SuppressWarnings("rawtypes")
            JComboBox theChoice = (JComboBox) source;

            if (theChoice.getItemCount() == 1) {
                JOptionPane.showMessageDialog(this, "Cannot delete the last module.", cmd, JOptionPane.ERROR_MESSAGE);
                return;
            }

            int reply = JOptionPane.showConfirmDialog(this, "Do you want to delete the selected module?", cmd,
                    JOptionPane.YES_NO_OPTION);
            if (reply == JOptionPane.NO_OPTION) {
                return;
            }

            String moduleName = (String) theChoice.getSelectedItem();
            theChoice.removeItem(moduleName);
            if (cmd.endsWith("TreeView")) {
                treeViews.remove(moduleName);
            }
            else if (cmd.endsWith("MetadataView")) {
                metaDataViews.remove(moduleName);
            }
            else if (cmd.endsWith("TextView")) {
                textViews.remove(moduleName);
            }
            else if (cmd.endsWith("TableView")) {
                tableViews.remove(moduleName);
            }
            else if (cmd.endsWith("ImageView")) {
                imageViews.remove(moduleName);
            }
            else if (cmd.endsWith("PaletteView")) {
                paletteViews.remove(moduleName);
            }
        }
        /*
         * else if (cmd.equals("Add srb connsction")) { String srbaccount[] =
         * new String[7]; for (int i=0; i<7; i++) { srbaccount[i] =
         * srbFields[i].getText(); if (srbaccount[i] == null) { return; } }
         * DefaultListModel lm = (DefaultListModel)srbJList.getModel();
         *
         * if (lm.contains(srbaccount[0])) { int n =
         * srbJList.getSelectedIndex(); if ( n<0 ) return; String
         * srbaccountOld[] = (String[])srbVector.get(n); for (int i=0; i<7; i++)
         * srbaccountOld[i] = srbaccount[i]; } else { srbVector.add(srbaccount);
         * lm.addElement(srbaccount[0]);
         * srbJList.setSelectedValue(srbaccount[0], true); } } else if
         * (cmd.equals("Delete srb connsction")) { int n =
         * srbJList.getSelectedIndex(); if (n<0) { return; }
         *
         * int resp = JOptionPane.showConfirmDialog(this,
         * "Are you sure you want to delete the following SRB connection?\n"+
         * "            \""+srbJList.getSelectedValue()+"\"",
         * "Delete SRB Connection", JOptionPane.YES_NO_OPTION); if (resp ==
         * JOptionPane.NO_OPTION) { return; }
         *
         * DefaultListModel lm = (DefaultListModel)srbJList.getModel();
         * lm.removeElementAt(n); srbVector.remove(n); for (int i=0; i<7; i++) {
         * srbFields[i].setText(""); } }
         */
        else if (cmd.equals("Help on Auto Contrast")) {
            final String msg = "Auto Contrast does the following to compute a gain/bias \n"
                    + "that will stretch the pixels in the image to fit the pixel \n"
                    + "values of the graphics system. For example, it stretches unsigned\n"
                    + "short data to fit the full range of an unsigned short. Later \n"
                    + "code simply takes the high order byte and passes it to the graphics\n"
                    + "system (which expects 0-255). It uses some statistics on the pixels \n"
                    + "to prevent outliers from throwing off the gain/bias calculations much.\n\n"
                    + "To compute the gain/bias we... \n"
                    + "Find the mean and std. deviation of the pixels in the image \n" + "min = mean - 3 * std.dev. \n"
                    + "max = mean + 3 * std.dev. \n" + "small fudge factor because this tends to overshoot a bit \n"
                    + "Stretch to 0-USHRT_MAX \n" + "        gain = USHRT_MAX / (max-min) \n"
                    + "        bias = -min \n" + "\n" + "To apply the gain/bias to a pixel, use the formula \n"
                    + "data[i] = (data[i] + bias) * gain \n" + "\n"
                    // +
                    // "Finally, for auto-ranging the sliders for gain/bias, we do the following \n"
                    // + "gain_min = 0 \n"
                    // + "gain_max = gain * 3.0 \n"
                    // + "bias_min = -fabs(bias) * 3.0 \n"
                    // + "bias_max = fabs(bias) * 3.0 \n"
                    + "\n\n";
            JOptionPane.showMessageDialog(this, msg);
        }
        else if (cmd.equals("Help on Convert Enum")) {
            final String msg = "Convert enum data to strings. \n"
                    + "For example, a dataset of an enum type of (R=0, G=, B=2) \n"
                    + "has values of (0, 2, 2, 2, 1, 1). With conversion, the data values are \n"
                    + "shown as (R, B, B, B, G, G).\n\n\n";
            JOptionPane.showMessageDialog(this, msg);
        }
    }

    /*
     * public void valueChanged(ListSelectionEvent e) { Object src =
     * e.getSource();
     *
     * if (!src.equals(srbJList)) { return; }
     *
     * int n = srbJList.getSelectedIndex(); if ( n<0 ) { return; }
     *
     * String srbaccount[] = (String[])srbVector.get(n); if (srbaccount == null)
     * { return; }
     *
     * n = Math.min(7, srbaccount.length); for (int i=0; i<n; i++) {
     * srbFields[i].setText(srbaccount[i]); } }
     */

    @SuppressWarnings("unchecked")
    private void setUserOptions() {
        String UGPath = UGField.getText();
        if ((UGPath != null) && (UGPath.length() > 0)) {
            UGPath = UGPath.trim();
            isUserGuideChanged = !UGPath.equals(ViewProperties.getUsersGuide());
            ViewProperties.setUsersGuide(UGPath);
        }

        String workPath = workField.getText();
        if (checkCurrentUserDir.isSelected()) {
            workPath = "user.home";
        }

        log.trace("UserOptionsDialog:setUserOptions workPath={}", workPath);
        if ((workPath != null) && (workPath.length() > 0)) {
            workPath = workPath.trim();
            isWorkDirChanged = !workPath.equals(ViewProperties.getWorkDir());
            ViewProperties.setWorkDir(workPath);
        }

        String ext = fileExtField.getText();
        if ((ext != null) && (ext.length() > 0)) {
            ext = ext.trim();
            ViewProperties.setFileExtension(ext);
        }

        if (checkReadOnly.isSelected())
            ViewProperties.setReadOnly(true);
        else
            ViewProperties.setReadOnly(false);

        if (checkLibVersion.isSelected())
            ViewProperties.setEarlyLib(true);
        else
            ViewProperties.setEarlyLib(false);

        // set font size
        int fsize = 12;
        try {
            fsize = Integer.parseInt((String) fontSizeChoice.getSelectedItem());
            ViewProperties.setFontSize(fsize);

            if ((fontSize != ViewProperties.getFontSize())) {
                isFontChanged = true;
            }
        }
        catch (Exception ex) {
        }

        // set font type
        String ftype = (String) fontTypeChoice.getSelectedItem();
        if (!ftype.equalsIgnoreCase(ViewProperties.getFontType())) {
            isFontChanged = true;
            ViewProperties.setFontType(ftype);
        }

        // set data delimiter
        ViewProperties.setDataDelimiter((String) delimiterChoice.getSelectedItem());
        ViewProperties.setImageOrigin((String) imageOriginChoice.getSelectedItem());

        // set index type
        if (checkIndexType.isSelected())
            ViewProperties.setIndexType("H5_INDEX_NAME");
        else
            ViewProperties.setIndexType("H5_INDEX_CRT_ORDER");

        // set index order
        if (checkIndexOrder.isSelected())
            ViewProperties.setIndexOrder("H5_ITER_INC");
        else if (checkIndexNative.isSelected())
            ViewProperties.setIndexOrder("H5_ITER_NATIVE");
        else
            ViewProperties.setIndexOrder("H5_ITER_DEC");

        if (checkReadAll.isSelected()) {
            ViewProperties.setStartMembers(0);
            ViewProperties.setMaxMembers(-1);
        } else {
            try {
                int maxsize = Integer.parseInt(maxMemberField.getText());
                ViewProperties.setMaxMembers(maxsize);
            }
            catch (Exception ex) {
            }

            try {
                int startsize = Integer.parseInt(startMemberField.getText());
                ViewProperties.setStartMembers(startsize);
            }
            catch (Exception ex) {
            }
        }

        @SuppressWarnings("rawtypes")
        Vector[] moduleList = { treeViews, metaDataViews, textViews, tableViews, imageViews, paletteViews };
        @SuppressWarnings("rawtypes")
        JComboBox[] choiceList = { choiceTreeView, choiceMetaDataView, choiceTextView, choiceTableView,
                choiceImageView, choicePaletteView };
        for (int i = 0; i < 6; i++) {
            Object theModule = choiceList[i].getSelectedItem();
            moduleList[i].remove(theModule);
            moduleList[i].add(0, theModule);
        }

        ViewProperties.setAutoContrast(checkAutoContrast.isSelected());
        ViewProperties.setShowImageValue(checkShowValues.isSelected());
        ViewProperties.setConvertEnum(checkConvertEnum.isSelected());
        ViewProperties.setShowRegRefValue(checkShowRegRefValues.isSelected());

        if (indexBaseChoice.getSelectedIndex() == 0)
            ViewProperties.setIndexBase1(false);
        else
            ViewProperties.setIndexBase1(true);
    }

    public boolean isFontChanged() {
        return isFontChanged;
    }

    public boolean isUserGuideChanged() {
        return isUserGuideChanged;
    }

    public boolean isWorkDirChanged() {
        return isWorkDirChanged;
    }

    @Override
    public void itemStateChanged(ItemEvent e) {
        Object source = e.getSource();

        if (source.equals(checkReadAll)) {
            startMemberField.setEnabled(!checkReadAll.isSelected());
            maxMemberField.setEnabled(!checkReadAll.isSelected());

        }
    }
}