PreferencesDialog.java

/**
 * Copyright 1999-2009 The Pegadi Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Dialog for preferences.
 *
 * @author Håvard Wigtil <havardw at pvv.org>
 */

package org.pegadi.client;


import org.pegadi.swing.AbstractPreferencesDialog;

import javax.swing.*;
import java.awt.*;
import java.util.Properties;
import java.util.ResourceBundle;


public class PreferencesDialog extends AbstractPreferencesDialog {
    /**
     * UI strings.
     */
    protected ResourceBundle strings;

    /**
     * Array of available languages.
     */
    protected String[] languages;

    /**
     * Array of available Look&Feels.
     */
    protected String[] themes;

    /**
     * Combo box for choosing locale.
     */
    protected JComboBox localeCombo;

    /**
     * Combo box for choosing Look&Feel.
     */
    protected JComboBox themeCombo;

    /**
     * Cretes a new dialog. This implementation only calls the super
     * constructor.
     */
    public PreferencesDialog(JFrame parent, Properties preferences) {
        super(parent, preferences);
    }


    /**
     * This method will be called to create the body of the dialog,
     * the part added above the buttons.
     *
     * @return The component that will be added.
     */
    protected Component createPreferencesPane() {
        strings = ResourceBundle.getBundle("org.pegadi.client.PreferencesDialogStrings");

        languages = new String[4];
        languages[0] = strings.getString("locale_english");
        languages[1] = strings.getString("locale_bokmaal");
        languages[2] = strings.getString("locale_nynorsk");
        languages[3] = strings.getString("locale_le");

        themes = new String[3];
        themes[0] = strings.getString("theme_system");
        themes[1] = strings.getString("theme_swing");
        themes[2] = strings.getString("theme_gtk");

        JPanel panel = new JPanel();
        panel.setLayout(new GridBagLayout());

        GridBagConstraints c = new GridBagConstraints();
        c.insets = new Insets(5, 5, 5, 5);
        panel.add(new JLabel(strings.getString("locale_label")), c);
        c.gridy = 1;
        //feature disable
        //panel.add(new JLabel(strings.getString("theme_label")), c);

        c.gridx = 1;
        c.gridy = 0;
        c.fill = GridBagConstraints.HORIZONTAL;
        localeCombo = new JComboBox(languages);
        panel.add(localeCombo, c);
        c.gridy = 1;
        themeCombo = new JComboBox(themes);
        //feature disabled
        //panel.add(themeCombo, c);

        return panel;
    }


    /**
     * Set preferences controls according to this <code>Properties</code>.
     * The <code>Properties</code> object will also be set as the new
     * <code>prefs</code> variable.
     */
    public void setPreferences(Properties preferences) {
        prefs = preferences;

        String locale = prefs.getProperty("Locale", "");
        if (locale.equals("en")) {
            localeCombo.setSelectedIndex(0);
        } else if (locale.equals("no_NO")) {
            localeCombo.setSelectedIndex(1);
        } else if (locale.equals("no_NO_NY")) {
            localeCombo.setSelectedIndex(2);
        } else if (locale.equals("le")) {
            localeCombo.setSelectedIndex(3);
        }

        String theme = prefs.getProperty("Theme", "");
        if (theme.equals("system")) {
            themeCombo.setSelectedIndex(0);
        } else if (theme.equals("swing")) {
            themeCombo.setSelectedIndex(1);
        } else if (theme.equals("gtk")) {
            themeCombo.setSelectedIndex(2);
        }
    }


    /**
     * Called when "OK" is pressed to determine which preferences are changed.
     * All changed preferences will be placed in <code>changedPrefs</code>, which
     * prior to this call will be <code>null</code>.
     */
    protected void findChangedPreferences() {
        changedPrefs = new Properties();
        String oldLocale = prefs.getProperty("Locale", "");
        String newLocale = null;
        int localeIndex = localeCombo.getSelectedIndex();
        switch (localeIndex) {
            case 0:
                newLocale = "en";
                break;
            case 1:
                newLocale = "no_NO";
                break;
            case 2:
                newLocale = "no_NO_NY";
                break;
            case 3:
                newLocale = "le";
                break;
        }

        if (!oldLocale.equals(newLocale)) {
            changedPrefs.put("Locale", newLocale);
        }

        String oldTheme = prefs.getProperty("Theme", "");
        String newTheme;
        if (themeCombo.getSelectedIndex() == 0) {
            newTheme = "system";
        } else if (themeCombo.getSelectedIndex() == 1) {
            newTheme = "swing";
        } else {
            newTheme = "gtk";
        }
        if (!oldTheme.equals(newTheme)) {
            changedPrefs.put("Theme", newTheme);
        }
    }


}