1 /* 2 * Copyright (c) 2011, 2015, 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.Size; 29 import javafx.css.ParsedValue; 30 import javafx.css.StyleConverter; 31 import javafx.geometry.Insets; 32 import javafx.scene.text.Font; 33 34 /** 35 * Convert <size>{1,4} to Insets. The size values are interpreted as 36 * top, right, bottom, left. 37 * If only top is given, that value is used on all sides. 38 * If there is only top and right, then bottom is set to top and left is set to right. 39 * If top, right and bottom are given, then left is set to right. 40 * 41 * @since 9 42 */ 43 public final class InsetsConverter extends StyleConverter<ParsedValue[], Insets> { 44 45 // lazy, thread-safe instatiation 46 private static class Holder { 47 static final InsetsConverter INSTANCE = new InsetsConverter(); 48 static final SequenceConverter SEQUENCE_INSTANCE = new SequenceConverter(); 49 } 50 51 public static StyleConverter<ParsedValue[], Insets> getInstance() { 52 return Holder.INSTANCE; 53 } 54 55 private InsetsConverter() { 56 super(); 57 } 58 59 @Override 60 public Insets convert(ParsedValue<ParsedValue[], Insets> value, Font font) { 61 ParsedValue[] sides = value.getValue(); 62 double top = ((Size)sides[0].convert(font)).pixels(font); 63 double right = (sides.length > 1) ? ((Size)sides[1].convert(font)).pixels(font) : top; 64 double bottom = (sides.length > 2) ? ((Size)sides[2].convert(font)).pixels(font) : top; 65 double left = (sides.length > 3) ? ((Size)sides[3].convert(font)).pixels(font) : right; 66 return new Insets(top, right, bottom, left); 67 } 68 69 @Override 70 public String toString() { 71 return "InsetsConverter"; 72 } 73 74 /** 75 * Convert a <size>{1,4} [,<size>{1,4}]* an Insets[] 76 */ 77 public static final class SequenceConverter extends StyleConverter<ParsedValue<ParsedValue[], Insets>[], Insets[]> { 78 79 public static SequenceConverter getInstance() { 80 return Holder.SEQUENCE_INSTANCE; 81 } 82 83 private SequenceConverter() { 84 super(); 85 } 86 87 @Override 88 public Insets[] convert(ParsedValue<ParsedValue<ParsedValue[], Insets>[], Insets[]> value, Font font) { 89 ParsedValue<ParsedValue[], Insets>[] layers = value.getValue(); 90 Insets[] insets = new Insets[layers.length]; 91 for (int layer = 0; layer < layers.length; layer++) { 92 insets[layer] = InsetsConverter.getInstance().convert(layers[layer], font); 93 } 94 return insets; 95 } 96 97 @Override 98 public String toString() { 99 return "InsetsSequenceConverter"; 100 } 101 } 102 } 103