/*
 * Autopsy Forensic Browser
 *
 * Copyright 2013 Basis Technology Corp.
 * Contact: carrier <at> sleuthkit <dot> org
 *
 * 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.
 */
package org.sleuthkit.autopsy.imageanalyzer;

import java.util.prefs.PreferenceChangeListener;
import java.util.prefs.Preferences;
import org.openide.util.NbPreferences;

/** Persists Image Analyzer preference to a per user .properties file */
class ImageAnalyzerPreferences {

    /** NBPreferences object used to persist settings */
    private static final Preferences preferences = NbPreferences.forModule(ImageAnalyzerPreferences.class);

    /** key for the listening enabled for new cases setting */
    private static final String ENABLED_BY_DEFAULT = "enabled_by_default";

    /**
     * Return setting of whether Image Analyzer should be automatically enabled 
     * when a new case is created.  Note that the current case may have a different
     * setting. 
     * 
     * @return true if new cases should have image analyzer enabled. 
     */
    static boolean isEnabledByDefault() {
        final boolean aBoolean = preferences.getBoolean(ENABLED_BY_DEFAULT, true);
        return aBoolean;
    }

    static void setEnabledByDefault(boolean b) {
        preferences.putBoolean(ENABLED_BY_DEFAULT, b);
    }

    static void addChangeListener(PreferenceChangeListener l) {
        preferences.addPreferenceChangeListener(l);
    }

    static void removeChangeListener(PreferenceChangeListener l) {
        preferences.removePreferenceChangeListener(l);
    }
}