File ColorConverter.java
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38% of files have more coverage
Classes
| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| ColorConverter | 41 | 33 | 0% | 15 | 10 |
Contributing tests
This file is covered by 15 tests.
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| 1 | /* | |
| 2 | * See the NOTICE file distributed with this work for additional | |
| 3 | * information regarding copyright ownership. | |
| 4 | * | |
| 5 | * This is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms of the GNU Lesser General Public License as | |
| 7 | * published by the Free Software Foundation; either version 2.1 of | |
| 8 | * the License, or (at your option) any later version. | |
| 9 | * | |
| 10 | * This software is distributed in the hope that it will be useful, | |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | * Lesser General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU Lesser General Public | |
| 16 | * License along with this software; if not, write to the Free | |
| 17 | * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
| 18 | * 02110-1301 USA, or see the FSF site: http://www.fsf.org. | |
| 19 | */ | |
| 20 | package org.xwiki.properties.internal.converter; | |
| 21 | ||
| 22 | import java.awt.Color; | |
| 23 | import java.lang.reflect.Type; | |
| 24 | import java.text.MessageFormat; | |
| 25 | import java.util.StringTokenizer; | |
| 26 | ||
| 27 | import javax.inject.Singleton; | |
| 28 | ||
| 29 | import org.xwiki.component.annotation.Component; | |
| 30 | import org.xwiki.properties.converter.AbstractConverter; | |
| 31 | import org.xwiki.properties.converter.ConversionException; | |
| 32 | ||
| 33 | /** | |
| 34 | * Converter that converts a value into an {@link Color} object. | |
| 35 | * | |
| 36 | * @version $Id: 3b446e146230a18a256eb7187ca661323052932b $ | |
| 37 | * @since 5.2M1 | |
| 38 | */ | |
| 39 | @Component | |
| 40 | @Singleton | |
| 41 | public class ColorConverter extends AbstractConverter<Color> | |
| 42 | { | |
| 43 | /** | |
| 44 | * The String input supported by this {@link org.apache.commons.beanutils.Converter}. | |
| 45 | */ | |
| 46 | private static final String USAGE = "Color value should be in the form of '#xxxxxx' or 'r,g,b'"; | |
| 47 | ||
| 48 | 15 |  @Override |
| 49 | protected Color convertToType(Type type, Object value) | |
| 50 | { | |
| 51 | 15 | Color color = null; |
| 52 | 15 | if (value != null) { |
| 53 | 15 | color = parse(value.toString()); |
| 54 | } | |
| 55 | ||
| 56 | 14 | return color; |
| 57 | } | |
| 58 | ||
| 59 | 1 | @Override |
| 60 | protected String convertToString(Color value) | |
| 61 | { | |
| 62 | 1 | Color colorValue = value; |
| 63 | ||
| 64 | 1 | return MessageFormat.format("{0}, {1}, {2}", colorValue.getRed(), colorValue.getGreen(), colorValue.getBlue()); |
| 65 | } | |
| 66 | ||
| 67 | /** | |
| 68 | * Parsers a String in the form "x, y, z" into an SWT RGB class. | |
| 69 | * | |
| 70 | * @param value the color as String | |
| 71 | * @return RGB | |
| 72 | */ | |
| 73 | 1 | protected Color parseRGB(String value) |
| 74 | { | |
| 75 | 1 | StringTokenizer items = new StringTokenizer(value, ","); |
| 76 | ||
| 77 | 1 | try { |
| 78 | 1 | int red = 0; |
| 79 | 1 | if (items.hasMoreTokens()) { |
| 80 | 1 | red = Integer.parseInt(items.nextToken().trim()); |
| 81 | } | |
| 82 | ||
| 83 | 1 | int green = 0; |
| 84 | 1 | if (items.hasMoreTokens()) { |
| 85 | 1 | green = Integer.parseInt(items.nextToken().trim()); |
| 86 | } | |
| 87 | ||
| 88 | 1 | int blue = 0; |
| 89 | 1 | if (items.hasMoreTokens()) { |
| 90 | 1 | blue = Integer.parseInt(items.nextToken().trim()); |
| 91 | } | |
| 92 | ||
| 93 | 1 | return new Color(red, green, blue); |
| 94 | } catch (NumberFormatException ex) { | |
| 95 | 0 | throw new ConversionException(value + "is not a valid RGB colo", ex); |
| 96 | } | |
| 97 | } | |
| 98 | ||
| 99 | /** | |
| 100 | * Parsers a String in the form "#xxxxxx" into an SWT RGB class. | |
| 101 | * | |
| 102 | * @param value the color as String | |
| 103 | * @return RGB | |
| 104 | */ | |
| 105 | 13 | protected Color parseHtml(String value) |
| 106 | { | |
| 107 | 13 | if (value.length() != 7) { |
| 108 | 0 | throw new ConversionException(USAGE); |
| 109 | } | |
| 110 | ||
| 111 | 13 | int colorValue = 0; |
| 112 | 13 | try { |
| 113 | 13 | colorValue = Integer.parseInt(value.substring(1), 16); |
| 114 | 13 | return new Color(colorValue); |
| 115 | } catch (NumberFormatException ex) { | |
| 116 | 0 | throw new ConversionException(value + "is not a valid Html color", ex); |
| 117 | } | |
| 118 | } | |
| 119 | ||
| 120 | /** | |
| 121 | * Convert a String in {@link Color}. | |
| 122 | * | |
| 123 | * @param value the String to parse | |
| 124 | * @return the {@link Color} | |
| 125 | */ | |
| 126 | 15 | public Color parse(String value) |
| 127 | { | |
| 128 | 15 | if (value.length() <= 1) { |
| 129 | 0 | throw new ConversionException(USAGE); |
| 130 | } | |
| 131 | ||
| 132 | 15 | if (value.charAt(0) == '#') { |
| 133 | 13 | return parseHtml(value); |
| 134 | 2 | } else if (value.indexOf(',') != -1) { |
| 135 | 1 | return parseRGB(value); |
| 136 | } else { | |
| 137 | 1 | throw new ConversionException(USAGE); |
| 138 | } | |
| 139 | } | |
| 140 | } |