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/*
 * Copyright (c) 2007 through 2024 David Berkman
 *
 * This file is part of the SmallMind Code Project.
 *
 * The SmallMind Code Project is free software, you can redistribute
 * it and/or modify it under either, at your discretion...
 *
 * 1) The terms of GNU Affero General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * ...or...
 *
 * 2) The terms of the Apache License, Version 2.0.
 *
 * The SmallMind Code Project 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 or Apache License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * and the Apache License along with the SmallMind Code Project. If not, see
 *  or .
 *
 * Additional permission under the GNU Affero GPL version 3 section 7
 * ------------------------------------------------------------------
 * If you modify this Program, or any covered work, by linking or
 * combining it with other code, such other code is not for that reason
 * alone subject to any of the requirements of the GNU Affero GPL
 * version 3.
 */
package org.smallmind.swing.calendar;

import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.smallmind.nutsnbolts.time.CalendarUtility;
import org.smallmind.nutsnbolts.time.Month;
import org.smallmind.nutsnbolts.util.WeakEventListenerList;
import org.smallmind.swing.spinner.EdgeAwareSpinnerModel;

public class MonthSpinnerModel implements EdgeAwareSpinnerModel {

  private final WeakEventListenerList listenerList;
  private Month month;

  public MonthSpinnerModel (int month) {

    this.month = CalendarUtility.getMonth(month);

    listenerList = new WeakEventListenerList();
  }

  public void addChangeListener (ChangeListener changeListener) {

    listenerList.addListener(changeListener);
  }

  public void removeChangeListener (ChangeListener changeListener) {

    listenerList.removeListener(changeListener);
  }

  public Object getMinimumValue () {

    return CalendarUtility.getMonth(1);
  }

  public Object getMaximumValue () {

    return CalendarUtility.getMonth(12);
  }

  public Object getValue () {

    return month;
  }

  public void setValue (Object value) {

    ChangeEvent changeEvent;

    this.month = (Month)value;

    changeEvent = new ChangeEvent(this);
    for (ChangeListener changeListener : listenerList) {
      changeListener.stateChanged(changeEvent);
    }
  }

  public Object getNextValue () {

    return CalendarUtility.getMonth((month.ordinal() < 11) ? month.ordinal() + 2 : month.ordinal() + 1);
  }

  public Object getPreviousValue () {

    return CalendarUtility.getMonth((month.ordinal() > 0) ? month.ordinal() : month.ordinal() + 1);
  }
}