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 javafx.css.converter; 27 28 import javafx.css.ParsedValue; 29 import javafx.css.StyleConverter; 30 import javafx.scene.paint.Color; 31 import javafx.scene.text.Font; 32 33 /** 34 * @since 9 35 */ 36 public final class ColorConverter extends StyleConverter<String, Color> { 37 38 private static class Holder { 39 static final ColorConverter COLOR_INSTANCE = new ColorConverter(); 40 } 41 42 // lazy, thread-safe instatiation 43 public static StyleConverter<String, Color> getInstance() { 44 return Holder.COLOR_INSTANCE; 45 } 46 47 private ColorConverter() { 48 super(); 49 } 50 51 @Override 52 public Color convert(ParsedValue<String, Color> value, Font font) { 53 Object val = value.getValue(); 54 if (val == null) { 55 return null; 56 } 57 if (val instanceof Color) { 58 return (Color)val; 59 } 60 if (val instanceof String) { 61 String str = (String)val; 62 if (str.isEmpty() || "null".equals(str)) { 63 return null; 64 } 65 try { 66 return Color.web((String)val); 67 } catch (IllegalArgumentException iae) { 68 // fall through pending RT-34551 69 } 70 } 71 // pending RT-34551 72 System.err.println("not a color: " + value); 73 return Color.BLACK; 74 } 75 76 @Override 77 public String toString() { 78 return "ColorConverter"; 79 } 80 }