001/*
002 *                  BioJava development code
003 *
004 * This code may be freely distributed and modified under the
005 * terms of the GNU Lesser General Public Licence.  This should
006 * be distributed with the code.  If you do not have a copy,
007 * see:
008 *
009 *      http://www.gnu.org/copyleft/lesser.html
010 *
011 * Copyright for this code is held jointly by the individual
012 * authors.  These should be listed in @author doc comments.
013 *
014 * For more information on the BioJava project and its aims,
015 * or to join the biojava-l mailing list, visit the home page
016 * at:
017 *
018 *      http://www.biojava.org/
019 *
020 * Created on Aug 3, 2007
021 */
022package org.biojava.nbio.structure.gui.util.color;
023
024import java.awt.*;
025
026/**
027 * @author Spencer Bliven
028 *
029 */
030public interface ColorInterpolator {
031        /**
032         * Interpolates to a color between a and b
033         * @param a First color
034         * @param b Second color
035         * @param mixing Mixing coefficient; the fraction of a in the result.
036         * @return The color between a and b
037         * @throws IllegalArgumentException if mixing is not between 0 and 1
038         */
039        public Color interpolate(Color a, Color b, float mixing);
040}