1 /*
   2  * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.javafx.css.parser;
  27 
  28 import com.sun.javafx.css.Size;
  29 import com.sun.javafx.css.StyleConverterImpl;
  30 import javafx.css.ParsedValue;
  31 import javafx.scene.paint.Color;
  32 import javafx.scene.text.Font;
  33 
  34 /**
  35  * Derive a Color from a Color and a brightness value
  36  */
  37 public final class DeriveColorConverter extends StyleConverterImpl<ParsedValue[], Color> {
  38 
  39     // lazy, thread-safe instatiation
  40     private static class Holder {
  41         static final DeriveColorConverter INSTANCE = new DeriveColorConverter();
  42     }
  43 
  44     public static DeriveColorConverter getInstance() {
  45         return Holder.INSTANCE;
  46     }
  47 
  48     private DeriveColorConverter() {
  49         super();
  50     }
  51 
  52     @Override
  53     public Color convert(ParsedValue<ParsedValue[], Color> value, Font font) {
  54         ParsedValue[] values = value.getValue();
  55         final Color color = (Color) values[0].convert(font);
  56         final Size brightness = (Size) values[1].convert(font);
  57         return com.sun.javafx.util.Utils.deriveColor(color, brightness.pixels(font));
  58     }
  59 
  60     @Override
  61     public String toString() {
  62         return "DeriveColorConverter";
  63     }
  64 }