If the color is equal to one of the defined constant colors, that name is returned instead. : Color « 2D Graphics GUI « Java

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Java » 2D Graphics GUI » ColorScreenshots 
If the color is equal to one of the defined constant colors, that name is returned instead.
     
import java.awt.Color;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

/* 
 * JCommon : a free general purpose class library for the Java(tm) platform
 
 *
 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
 
 * Project Info:  http://www.jfree.org/jcommon/index.html
 *
 * This library 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 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
 * USA.  
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 
 * -------------------
 * PaintUtilities.java
 * -------------------
 * (C) Copyright 2003-2005, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: PaintUtilities.java,v 1.10 2007/11/02 17:50:37 taqua Exp $
 *
 * Changes
 * -------
 * 13-Nov-2003 : Version 1 (DG);
 * 04-Oct-2004 : Renamed PaintUtils --> PaintUtilities (DG);
 * 23-Feb-2005 : Rewrote equal() method with less indenting required (DG);
 *
 */

public class Main {
  /**
   * Converts a color into a string. If the color is equal to one of the defined
   * constant colors, that name is returned instead. Otherwise the color is
   * returned as hex-string.
   
   @param c
   *          the color.
   @return the string for this color.
   */
  public static String colorToString(final Color c) {
    try {
      final Field[] fields = Color.class.getFields();
      for (int i = 0; i < fields.length; i++) {
        final Field f = fields[i];
        if (Modifier.isPublic(f.getModifiers()) && Modifier.isFinal(f.getModifiers())
            && Modifier.isStatic(f.getModifiers())) {
          final String name = f.getName();
          final Object oColor = f.get(null);
          if (oColor instanceof Color) {
            if (c.equals(oColor)) {
              return name;
            }
          }
        }
      }
    catch (Exception e) {
      //
    }

    // no defined constant color, so this must be a user defined color
    final String color = Integer.toHexString(c.getRGB() 0x00ffffff);
    final StringBuffer retval = new StringBuffer(7);
    retval.append("#");

    final int fillUp = - color.length();
    for (int i = 0; i < fillUp; i++) {
      retval.append("0");
    }

    retval.append(color);
    return retval.toString();
  }

}

   
    
    
    
    
  
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