content: // ===============================================================================
  // Authors: AFRL/RQQD
  // Organization: Air Force Research Laboratory, Aerospace Systems Directorate, Power and Control Division
  // 
  // Copyright (c) 2017 Government of the United State of America, as represented by
  // the Secretary of the Air Force.  No copyright is claimed in the United States under
  // Title 17, U.S. Code.  All Other Rights Reserved.
  // ===============================================================================
  
  /*
   * GRAL: GRAphing Library for Java(R)
   *
   * (C) Copyright 2009-2013 Erich Seifert <dev[at]erichseifert.de>,
   * Michael Seifert <mseifert[at]error-reports.org>
   *
   * This file is part of GRAL.
   *
   * GRAL is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or
   * (at your option) any later version.
   *
   * GRAL 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 Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public License
   * along with GRAL.  If not, see <http://www.gnu.org/licenses/>.
   */
  package de.erichseifert.gral.plots.colors;
  
  import java.awt.Paint;
  
  /**
   * Class that represents a ColorMapper with a single color.
   */
  public class SingleColor extends IndexedColorMapper {
  	/** Version id for serialization. */
  	private static final long serialVersionUID = -3377452532555792998L;
  
  	/** The color that will be returned in any case. */
  	private Paint color;
  
  	/**
  	 * Creates a new instance with the specified color.
  	 * @param color Color to use.
  	 */
  	public SingleColor(Paint color) {
  		this.color = color;
  	}
  
  	/**
  	 * Returns the Paint according to the specified value.
  	 * @param value Numeric index.
  	 * @return Paint.
  	 */
  	@Override
  	public Paint get(int value) {
  		return getColor();
  	}
  
  	/**
  	 * Returns the color of this ColorMapper.
  	 * @return Color.
  	 */
  	public Paint getColor() {
  		return color;
  	}
  
  	/**
  	 * Sets the color of this ColorMapper.
  	 * @param color Color to be set.
  	 */
  	public void setColor(Paint color) {
  		this.color = color;
  	}
  
  	@Override
  	public boolean equals(Object obj) {
  		if (!(obj instanceof SingleColor)) {
  			return false;
  		}
  		SingleColor cm = (SingleColor) obj;
  		return color.equals(cm.color) && getMode() == cm.getMode();
  	}
  
  	@Override
  	public int hashCode() {
  		long bits = getColor().hashCode();
  		bits ^= getMode().hashCode() * 31;
  		return ((int) bits) ^ ((int) (bits >> 32));
  	}
  }
  