1 /* 2 * Copyright (c) 2011, 2013, 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.scene.layout.region; 27 28 import javafx.css.ParsedValue; 29 import com.sun.javafx.css.Size; 30 import com.sun.javafx.css.SizeUnits; 31 import com.sun.javafx.css.StyleConverterImpl; 32 import com.sun.javafx.css.converters.BooleanConverter; 33 import javafx.scene.layout.BackgroundSize; 34 import javafx.scene.text.Font; 35 36 /** 37 */ 38 public final class BackgroundSizeConverter extends StyleConverterImpl<ParsedValue[], BackgroundSize> { 39 private static final BackgroundSizeConverter BACKGROUND_SIZE_CONVERTER = 40 new BackgroundSizeConverter(); 41 42 public static BackgroundSizeConverter getInstance() { 43 return BACKGROUND_SIZE_CONVERTER; 44 } 45 46 // Disallow instantiation 47 private BackgroundSizeConverter() { } 48 49 @Override 50 public BackgroundSize convert(ParsedValue<ParsedValue[], BackgroundSize> value, Font font) { 51 ParsedValue[] values = value.getValue(); 52 53 // A Size that is null represents that we are "auto" for that dimension 54 final Size wSize = (values[0] != null) 55 ? ((ParsedValue<?, Size>) values[0]).convert(font) : null; 56 final Size hSize = (values[1] != null) 57 ? ((ParsedValue<?, Size>) values[1]).convert(font) : null; 58 59 boolean proportionalWidth = true; 60 boolean proportionalHeight = true; 61 62 if (wSize != null) { 63 proportionalWidth = wSize.getUnits() == SizeUnits.PERCENT; 64 } 65 if (hSize != null) { 66 // wSize will be null if wSize is AUTO 67 proportionalHeight = hSize.getUnits() == SizeUnits.PERCENT; 68 } 69 70 double w = (wSize != null) ? wSize.pixels(font) : BackgroundSize.AUTO; 71 double h = (hSize != null) ? hSize.pixels(font) : BackgroundSize.AUTO; 72 73 boolean cover = (values[2] != null) 74 ? BooleanConverter.getInstance().convert(values[2], font) : false; 75 76 boolean contain = (values[3] != null) 77 ? BooleanConverter.getInstance().convert(values[3], font) : false; 78 79 return new BackgroundSize(w, h, proportionalWidth, proportionalHeight, contain, cover); 80 } 81 82 /** 83 * @inheritDoc 84 */ 85 @Override public String toString() { 86 return "BackgroundSizeConverter"; 87 } 88 }