AbstractPickmapSettings.java

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/*
 * Gridarta MMORPG map editor for Crossfire, Daimonin and similar games.
 * Copyright (C) 2000-2023 The Gridarta Developers.
 *
 * 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 2 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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
package net.sf.gridarta.model.pickmapsettings;
 
import java.util.Collection;
import java.util.concurrent.CopyOnWriteArrayList;
import org.jetbrains.annotations.NotNull;
 
public abstract class AbstractPickmapSettings implements PickmapSettings {
 
    @NotNull
    private final Collection<PickmapSettingsListener> listenerList = new CopyOnWriteArrayList<>();
 
    private boolean locked = loadLocked();
 
    @Override
    public void addPickmapSettingsListener(@NotNull final PickmapSettingsListener listener) {
        listenerList.add(listener);
    }
 
    @Override
    public void removePickmapSettingsListener(@NotNull final PickmapSettingsListener listener) {
        listenerList.remove(listener);
    }
 
    @Override
    public boolean isLocked() {
        return locked;
    }
 
    @Override
    public void setLocked(final boolean locked) {
        if (this.locked == locked) {
            return;
        }
 
        this.locked = locked;
        saveLocked(locked);
        fireLockedChanged();
    }
 
    private void fireLockedChanged() {
        for (final PickmapSettingsListener listener : listenerList) {
            listener.lockedChanged(locked);
        }
    }
 
    protected abstract boolean loadLocked();
 
    protected abstract void saveLocked(boolean locked);
 
}