ResourceManager.java

/*
 *  UFO Saved Game Editor
 *  Copyright (C) 2010 Christopher Davoren
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  This program 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 for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package net.rubikscomplex.ufosge.resources;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Properties;
import java.util.prefs.BackingStoreException;
import java.util.prefs.Preferences;
import javax.swing.ImageIcon;
import javax.swing.JOptionPane;


/**
 *
 * @author Chris Davoren
 */
public class ResourceManager {
    public static final String ROOT_PREFS_NODE = "/net/rubikscomplex/ufosge";

    public static final String PREF_UFO_DIR = "ufodirectory";
    public static final String PREF_SAVESELECTFRAME_POSX = "SaveSelectFramePosX";
    public static final String PREF_SAVESELECTFRAME_POSY = "SaveSelectFramePosY";
    public static final String PREF_BASEEDITDIALOG_POSX = "BaseEditDialogPosX";
    public static final String PREF_BASEEDITDIALOG_POSY = "BaseEditDialogPosY";
    public static final String PREF_RESEARCHEDITDIALOG_POSX = "ResearchEditDialogPosX";
    public static final String PREF_RESEARCHEDITDIALOG_POSY = "ResearchEditDialogPosY";
    public static final String PREF_SAVEEDITFRAME_POSX = "SaveEditFramePosX";
    public static final String PREF_SAVEEDITFRAME_POSY = "SaveEditFramePosY";
    public static final String PREF_SOLDIEREDITDIALOG_POSX = "SoldierEditDialogPosX";
    public static final String PREF_SOLDIEREDITDIALOG_POSY = "SoldierEditDialogPosY";

    public static final String PROP_VERSION = "ufosge.version";
    public static final String PROP_FULLVERSION = "ufosge.fullversion";

    public static ImageIcon icon = null;

    static Preferences userPrefsNode = null;
    static Properties properties = null;

    public static URL getImageResource(String imageFilename) throws FileNotFoundException {
        URL imageURL = ResourceManager.class.getResource("/images/" + imageFilename);

        if (imageURL == null) {
            throw new FileNotFoundException("Unable to load image file '" + imageFilename + "'");
        }

        return imageURL;
    }

    public static ImageIcon getDefaultFrameIcon() {
        if (icon == null) {
            icon = new ImageIcon(ResourceManager.class.getResource("/images/icons/icon-32.png"), "32x32 Icon");
        }

        return icon;
    }

    public static Preferences getUserPreferences() {
        if (userPrefsNode == null) {
            userPrefsNode = Preferences.userRoot().node(ROOT_PREFS_NODE);
        }

        return userPrefsNode;
    }

    public static void deleteUserPreferences() {
        try {
            getUserPreferences().removeNode();
            getUserPreferences().flush();
        }
        catch(BackingStoreException e) {
            JOptionPane.showMessageDialog(null, "Unable to delete user preferences:\n\n" + e.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
        }
    }

    public static Properties getProperties() {
        if(properties == null) {
            properties = new Properties();
            
            try {
                InputStream propStream = ResourceManager.class.getResourceAsStream("/ufosge.properties");

                // JOptionPane.showMessageDialog(null, propResource.toURI().toString());

                if (propStream != null) {
                    properties.load(propStream);
                }
            }
            catch(IOException e) {
                JOptionPane.showMessageDialog(null, "Error loading properties file: " + e.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
            }
            catch(Exception e) {
                JOptionPane.showMessageDialog(null, "Error loading properties file: " + e.getMessage() + "\n\n" + e.getClass().toString(), "Error", JOptionPane.ERROR_MESSAGE);
            }
        }

        return properties;
    }

    public static String getProperty(String key) {
        Properties props = getProperties();

        if(props == null) {
            return null;
        }

        return props.getProperty(key, null);
    }

    public static String getUserPreference(String key) {
        return getUserPreferences().get(key, null);
    }

    public static int getUserPreferenceInt(String key) {
        return getUserPreferences().getInt(key, -1);
    }

    public static void setUserPreference(String key, String value) {
        getUserPreferences().put(key, value);
        try {
            getUserPreferences().flush();
        }
        catch(BackingStoreException e) {
            JOptionPane.showMessageDialog(null, "Unable to save preference '" + key + "':\n\n" + e.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
        }
    }

    public static void setUserPreferenceInt(String key, int value) {
        getUserPreferences().putInt(key, value);
        try {
            getUserPreferences().flush();
        }
        catch(BackingStoreException e) {
            JOptionPane.showMessageDialog(null, "Unable to save preference '" + key + "':\n\n" + e.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
        }
    }
}