1 /*

     2  * CDDL HEADER START

     3  *

     4  * The contents of this file are subject to the terms of the

     5  * Common Development and Distribution License (the "License").

     6  * You may not use this file except in compliance with the License.

     7  *

     8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

     9  * or http://www.opensolaris.org/os/licensing.

    10  * See the License for the specific language governing permissions

    11  * and limitations under the License.

    12  *

    13  * When distributing Covered Code, include this CDDL HEADER in each

    14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

    15  * If applicable, add the following below this CDDL HEADER, with the

    16  * fields enclosed by brackets "[]" replaced with your own identifying

    17  * information: Portions Copyright [yyyy] [name of copyright owner]

    18  *

    19  * CDDL HEADER END

    20  */

    21 

    22 /*

    23  * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.

    24  */

    25 

    26 package com.oracle.solaris.vp.util.misc.converter;

    27 

    28 import java.awt.Color;

    29 import java.util.*;

    30 import com.oracle.solaris.vp.util.misc.TextUtil;

    31 

    32 public class ColorStringConverter extends StringConverter<Color> {

    33     //

    34     // Static data

    35     //

    36 

    37     public static final ColorStringConverter INSTANCE =

    38 	new ColorStringConverter();

    39 

    40     //

    41     // Converter methods

    42     //

    43 

    44     /**

    45      * Converts the given {@code String} to a {@code Color}.

    46      *

    47      * @param	    s

    48      *		    the {@code String} to convert: a list of one, three, or four

    49      *		    integers, separated by whitespace and/or commas; these

    50      *		    correspond to the arguments of the various {@code Color}

    51      *		    constructors.

    52      *

    53      * @return	    {@code null} if {@code s} is {@code null}, a {@code Color}

    54      *		    otherwise

    55      *

    56      * @exception   IllegalArgumentException

    57      *		    if the given {@code String} could not be converted to a

    58      *		    {@code Color}

    59      */

    60     @Override

    61     public Color convert(String s) {

    62 	if (s == null) {

    63 	    return null;

    64 	}

    65 

    66 	List<Integer> list = new ArrayList<Integer>();

    67 	String[] groups;

    68 

    69 	String remaining = s;

    70 	while ((groups = TextUtil.match(

    71 	    remaining, "^[\\s,]*(\\d+)(.*)")) != null) {

    72 	    list.add(new Integer(groups[1]));

    73 	    remaining = groups[2];

    74 	}

    75 

    76 	switch (list.size()) {

    77 	    // Single RGB int

    78 	    case 1:

    79 		return new Color((int)list.get(0));

    80 

    81 	    // R, G, B

    82 	    case 3:

    83 		return new Color((int)list.get(0), (int)list.get(1),

    84 		    (int)list.get(2));

    85 

    86 	    // R, G, B, A

    87 	    case 4:

    88 		return new Color((int)list.get(0), (int)list.get(1),

    89 		    (int)list.get(2), (int)list.get(3));

    90 	}

    91 

    92 	throw new IllegalArgumentException(

    93 	    String.format("invalid color: %s", s));

    94     }

    95 

    96     //

    97     // DualConverter methods

    98     //

    99 

   100     @Override

   101     public String revert(Color c) {

   102 	return String.format("%d, %d, %d, %d",

   103 	    c.getRed(), c.getGreen(), c.getBlue(), c.getAlpha());

   104     }

   105 }