Java tutorial
/* * * This file is part of the iText (R) project. Copyright (c) 1998-2019 iText Group NV * Authors: Bruno Lowagie, Paulo Soares, et al. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License version 3 * as published by the Free Software Foundation with the addition of the * following permission added to Section 15 as permitted in Section 7(a): * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT * OF THIRD PARTY RIGHTS * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Affero General Public License for more details. * You should have received a copy of the GNU Affero General Public License * along with this program; if not, see http://www.gnu.org/licenses or write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA, 02110-1301 USA, or download the license from the following URL: * http://itextpdf.com/terms-of-use/ * * The interactive user interfaces in modified source and object code versions * of this program must display Appropriate Legal Notices, as required under * Section 5 of the GNU Affero General Public License. * * In accordance with Section 7(b) of the GNU Affero General Public License, * a covered work must retain the producer line in every PDF that is created * or manipulated using iText. * * You can be released from the requirements of the license by purchasing * a commercial license. Buying such a license is mandatory as soon as you * develop commercial activities involving the iText software without * disclosing the source code of your own applications. * These activities include: offering paid services to customers as an ASP, * serving PDFs on the fly in a web application, shipping iText with a closed * source product. * * For more information, please contact iText Software Corp. at this * address: sales@itextpdf.com */ package com.itextpdf.text.html; import com.itextpdf.text.BaseColor; import com.itextpdf.text.error_messages.MessageLocalization; import java.util.HashMap; import java.util.StringTokenizer; /** * This class is a HashMap that contains the names of colors as a key and the * corresponding BaseColor as value. (Source: Wikipedia * http://en.wikipedia.org/wiki/Web_colors ) * * @author blowagie * @deprecated since 5.5.2 */ @Deprecated public class WebColors extends HashMap<String, int[]> { private static final long serialVersionUID = 3542523100813372896L; /** HashMap containing all the names and corresponding color values. */ public static final WebColors NAMES = new WebColors(); static { NAMES.put("aliceblue", new int[] { 0xf0, 0xf8, 0xff, 0xff }); NAMES.put("antiquewhite", new int[] { 0xfa, 0xeb, 0xd7, 0xff }); NAMES.put("aqua", new int[] { 0x00, 0xff, 0xff, 0xff }); NAMES.put("aquamarine", new int[] { 0x7f, 0xff, 0xd4, 0xff }); NAMES.put("azure", new int[] { 0xf0, 0xff, 0xff, 0xff }); NAMES.put("beige", new int[] { 0xf5, 0xf5, 0xdc, 0xff }); NAMES.put("bisque", new int[] { 0xff, 0xe4, 0xc4, 0xff }); NAMES.put("black", new int[] { 0x00, 0x00, 0x00, 0xff }); NAMES.put("blanchedalmond", new int[] { 0xff, 0xeb, 0xcd, 0xff }); NAMES.put("blue", new int[] { 0x00, 0x00, 0xff, 0xff }); NAMES.put("blueviolet", new int[] { 0x8a, 0x2b, 0xe2, 0xff }); NAMES.put("brown", new int[] { 0xa5, 0x2a, 0x2a, 0xff }); NAMES.put("burlywood", new int[] { 0xde, 0xb8, 0x87, 0xff }); NAMES.put("cadetblue", new int[] { 0x5f, 0x9e, 0xa0, 0xff }); NAMES.put("chartreuse", new int[] { 0x7f, 0xff, 0x00, 0xff }); NAMES.put("chocolate", new int[] { 0xd2, 0x69, 0x1e, 0xff }); NAMES.put("coral", new int[] { 0xff, 0x7f, 0x50, 0xff }); NAMES.put("cornflowerblue", new int[] { 0x64, 0x95, 0xed, 0xff }); NAMES.put("cornsilk", new int[] { 0xff, 0xf8, 0xdc, 0xff }); NAMES.put("crimson", new int[] { 0xdc, 0x14, 0x3c, 0xff }); NAMES.put("cyan", new int[] { 0x00, 0xff, 0xff, 0xff }); NAMES.put("darkblue", new int[] { 0x00, 0x00, 0x8b, 0xff }); NAMES.put("darkcyan", new int[] { 0x00, 0x8b, 0x8b, 0xff }); NAMES.put("darkgoldenrod", new int[] { 0xb8, 0x86, 0x0b, 0xff }); NAMES.put("darkgray", new int[] { 0xa9, 0xa9, 0xa9, 0xff }); NAMES.put("darkgreen", new int[] { 0x00, 0x64, 0x00, 0xff }); NAMES.put("darkkhaki", new int[] { 0xbd, 0xb7, 0x6b, 0xff }); NAMES.put("darkmagenta", new int[] { 0x8b, 0x00, 0x8b, 0xff }); NAMES.put("darkolivegreen", new int[] { 0x55, 0x6b, 0x2f, 0xff }); NAMES.put("darkorange", new int[] { 0xff, 0x8c, 0x00, 0xff }); NAMES.put("darkorchid", new int[] { 0x99, 0x32, 0xcc, 0xff }); NAMES.put("darkred", new int[] { 0x8b, 0x00, 0x00, 0xff }); NAMES.put("darksalmon", new int[] { 0xe9, 0x96, 0x7a, 0xff }); NAMES.put("darkseagreen", new int[] { 0x8f, 0xbc, 0x8f, 0xff }); NAMES.put("darkslateblue", new int[] { 0x48, 0x3d, 0x8b, 0xff }); NAMES.put("darkslategray", new int[] { 0x2f, 0x4f, 0x4f, 0xff }); NAMES.put("darkturquoise", new int[] { 0x00, 0xce, 0xd1, 0xff }); NAMES.put("darkviolet", new int[] { 0x94, 0x00, 0xd3, 0xff }); NAMES.put("deeppink", new int[] { 0xff, 0x14, 0x93, 0xff }); NAMES.put("deepskyblue", new int[] { 0x00, 0xbf, 0xff, 0xff }); NAMES.put("dimgray", new int[] { 0x69, 0x69, 0x69, 0xff }); NAMES.put("dodgerblue", new int[] { 0x1e, 0x90, 0xff, 0xff }); NAMES.put("firebrick", new int[] { 0xb2, 0x22, 0x22, 0xff }); NAMES.put("floralwhite", new int[] { 0xff, 0xfa, 0xf0, 0xff }); NAMES.put("forestgreen", new int[] { 0x22, 0x8b, 0x22, 0xff }); NAMES.put("fuchsia", new int[] { 0xff, 0x00, 0xff, 0xff }); NAMES.put("gainsboro", new int[] { 0xdc, 0xdc, 0xdc, 0xff }); NAMES.put("ghostwhite", new int[] { 0xf8, 0xf8, 0xff, 0xff }); NAMES.put("gold", new int[] { 0xff, 0xd7, 0x00, 0xff }); NAMES.put("goldenrod", new int[] { 0xda, 0xa5, 0x20, 0xff }); NAMES.put("gray", new int[] { 0x80, 0x80, 0x80, 0xff }); NAMES.put("green", new int[] { 0x00, 0x80, 0x00, 0xff }); NAMES.put("greenyellow", new int[] { 0xad, 0xff, 0x2f, 0xff }); NAMES.put("honeydew", new int[] { 0xf0, 0xff, 0xf0, 0xff }); NAMES.put("hotpink", new int[] { 0xff, 0x69, 0xb4, 0xff }); NAMES.put("indianred", new int[] { 0xcd, 0x5c, 0x5c, 0xff }); NAMES.put("indigo", new int[] { 0x4b, 0x00, 0x82, 0xff }); NAMES.put("ivory", new int[] { 0xff, 0xff, 0xf0, 0xff }); NAMES.put("khaki", new int[] { 0xf0, 0xe6, 0x8c, 0xff }); NAMES.put("lavender", new int[] { 0xe6, 0xe6, 0xfa, 0xff }); NAMES.put("lavenderblush", new int[] { 0xff, 0xf0, 0xf5, 0xff }); NAMES.put("lawngreen", new int[] { 0x7c, 0xfc, 0x00, 0xff }); NAMES.put("lemonchiffon", new int[] { 0xff, 0xfa, 0xcd, 0xff }); NAMES.put("lightblue", new int[] { 0xad, 0xd8, 0xe6, 0xff }); NAMES.put("lightcoral", new int[] { 0xf0, 0x80, 0x80, 0xff }); NAMES.put("lightcyan", new int[] { 0xe0, 0xff, 0xff, 0xff }); NAMES.put("lightgoldenrodyellow", new int[] { 0xfa, 0xfa, 0xd2, 0xff }); NAMES.put("lightgreen", new int[] { 0x90, 0xee, 0x90, 0xff }); NAMES.put("lightgrey", new int[] { 0xd3, 0xd3, 0xd3, 0xff }); NAMES.put("lightpink", new int[] { 0xff, 0xb6, 0xc1, 0xff }); NAMES.put("lightsalmon", new int[] { 0xff, 0xa0, 0x7a, 0xff }); NAMES.put("lightseagreen", new int[] { 0x20, 0xb2, 0xaa, 0xff }); NAMES.put("lightskyblue", new int[] { 0x87, 0xce, 0xfa, 0xff }); NAMES.put("lightslategray", new int[] { 0x77, 0x88, 0x99, 0xff }); NAMES.put("lightsteelblue", new int[] { 0xb0, 0xc4, 0xde, 0xff }); NAMES.put("lightyellow", new int[] { 0xff, 0xff, 0xe0, 0xff }); NAMES.put("lime", new int[] { 0x00, 0xff, 0x00, 0xff }); NAMES.put("limegreen", new int[] { 0x32, 0xcd, 0x32, 0xff }); NAMES.put("linen", new int[] { 0xfa, 0xf0, 0xe6, 0xff }); NAMES.put("magenta", new int[] { 0xff, 0x00, 0xff, 0xff }); NAMES.put("maroon", new int[] { 0x80, 0x00, 0x00, 0xff }); NAMES.put("mediumaquamarine", new int[] { 0x66, 0xcd, 0xaa, 0xff }); NAMES.put("mediumblue", new int[] { 0x00, 0x00, 0xcd, 0xff }); NAMES.put("mediumorchid", new int[] { 0xba, 0x55, 0xd3, 0xff }); NAMES.put("mediumpurple", new int[] { 0x93, 0x70, 0xdb, 0xff }); NAMES.put("mediumseagreen", new int[] { 0x3c, 0xb3, 0x71, 0xff }); NAMES.put("mediumslateblue", new int[] { 0x7b, 0x68, 0xee, 0xff }); NAMES.put("mediumspringgreen", new int[] { 0x00, 0xfa, 0x9a, 0xff }); NAMES.put("mediumturquoise", new int[] { 0x48, 0xd1, 0xcc, 0xff }); NAMES.put("mediumvioletred", new int[] { 0xc7, 0x15, 0x85, 0xff }); NAMES.put("midnightblue", new int[] { 0x19, 0x19, 0x70, 0xff }); NAMES.put("mintcream", new int[] { 0xf5, 0xff, 0xfa, 0xff }); NAMES.put("mistyrose", new int[] { 0xff, 0xe4, 0xe1, 0xff }); NAMES.put("moccasin", new int[] { 0xff, 0xe4, 0xb5, 0xff }); NAMES.put("navajowhite", new int[] { 0xff, 0xde, 0xad, 0xff }); NAMES.put("navy", new int[] { 0x00, 0x00, 0x80, 0xff }); NAMES.put("oldlace", new int[] { 0xfd, 0xf5, 0xe6, 0xff }); NAMES.put("olive", new int[] { 0x80, 0x80, 0x00, 0xff }); NAMES.put("olivedrab", new int[] { 0x6b, 0x8e, 0x23, 0xff }); NAMES.put("orange", new int[] { 0xff, 0xa5, 0x00, 0xff }); NAMES.put("orangered", new int[] { 0xff, 0x45, 0x00, 0xff }); NAMES.put("orchid", new int[] { 0xda, 0x70, 0xd6, 0xff }); NAMES.put("palegoldenrod", new int[] { 0xee, 0xe8, 0xaa, 0xff }); NAMES.put("palegreen", new int[] { 0x98, 0xfb, 0x98, 0xff }); NAMES.put("paleturquoise", new int[] { 0xaf, 0xee, 0xee, 0xff }); NAMES.put("palevioletred", new int[] { 0xdb, 0x70, 0x93, 0xff }); NAMES.put("papayawhip", new int[] { 0xff, 0xef, 0xd5, 0xff }); NAMES.put("peachpuff", new int[] { 0xff, 0xda, 0xb9, 0xff }); NAMES.put("peru", new int[] { 0xcd, 0x85, 0x3f, 0xff }); NAMES.put("pink", new int[] { 0xff, 0xc0, 0xcb, 0xff }); NAMES.put("plum", new int[] { 0xdd, 0xa0, 0xdd, 0xff }); NAMES.put("powderblue", new int[] { 0xb0, 0xe0, 0xe6, 0xff }); NAMES.put("purple", new int[] { 0x80, 0x00, 0x80, 0xff }); NAMES.put("red", new int[] { 0xff, 0x00, 0x00, 0xff }); NAMES.put("rosybrown", new int[] { 0xbc, 0x8f, 0x8f, 0xff }); NAMES.put("royalblue", new int[] { 0x41, 0x69, 0xe1, 0xff }); NAMES.put("saddlebrown", new int[] { 0x8b, 0x45, 0x13, 0xff }); NAMES.put("salmon", new int[] { 0xfa, 0x80, 0x72, 0xff }); NAMES.put("sandybrown", new int[] { 0xf4, 0xa4, 0x60, 0xff }); NAMES.put("seagreen", new int[] { 0x2e, 0x8b, 0x57, 0xff }); NAMES.put("seashell", new int[] { 0xff, 0xf5, 0xee, 0xff }); NAMES.put("sienna", new int[] { 0xa0, 0x52, 0x2d, 0xff }); NAMES.put("silver", new int[] { 0xc0, 0xc0, 0xc0, 0xff }); NAMES.put("skyblue", new int[] { 0x87, 0xce, 0xeb, 0xff }); NAMES.put("slateblue", new int[] { 0x6a, 0x5a, 0xcd, 0xff }); NAMES.put("slategray", new int[] { 0x70, 0x80, 0x90, 0xff }); NAMES.put("snow", new int[] { 0xff, 0xfa, 0xfa, 0xff }); NAMES.put("springgreen", new int[] { 0x00, 0xff, 0x7f, 0xff }); NAMES.put("steelblue", new int[] { 0x46, 0x82, 0xb4, 0xff }); NAMES.put("tan", new int[] { 0xd2, 0xb4, 0x8c, 0xff }); NAMES.put("teal", new int[] { 0x00, 0x80, 0x80, 0xff }); NAMES.put("thistle", new int[] { 0xd8, 0xbf, 0xd8, 0xff }); NAMES.put("tomato", new int[] { 0xff, 0x63, 0x47, 0xff }); NAMES.put("transparent", new int[] { 0xff, 0xff, 0xff, 0x00 }); NAMES.put("turquoise", new int[] { 0x40, 0xe0, 0xd0, 0xff }); NAMES.put("violet", new int[] { 0xee, 0x82, 0xee, 0xff }); NAMES.put("wheat", new int[] { 0xf5, 0xde, 0xb3, 0xff }); NAMES.put("white", new int[] { 0xff, 0xff, 0xff, 0xff }); NAMES.put("whitesmoke", new int[] { 0xf5, 0xf5, 0xf5, 0xff }); NAMES.put("yellow", new int[] { 0xff, 0xff, 0x00, 0xff }); NAMES.put("yellowgreen", new int[] { 0x9a, 0xcd, 0x32, 0xff }); } /** * A web color string without the leading # will be 3 or 6 characters long * and all those characters will be hex digits. NOTE: colStr must be all * lower case or the current hex letter test will fail. * * @param colStr * A non-null, lower case string that might describe an RGB color * in hex. * @return Is this a web color hex string without the leading #? * @since 5.0.6 */ private static boolean missingHashColorFormat(String colStr) { int len = colStr.length(); if (len == 3 || len == 6) { // and it just contains hex chars 0-9, a-f, A-F String match = "[0-9a-f]{" + len + "}"; return colStr.matches(match); } return false; } /** * Gives you a BaseColor based on a name. * * @param name * a name such as black, violet, cornflowerblue or #RGB or * #RRGGBB or RGB or RRGGBB or rgb(R,G,B) * @return the corresponding BaseColor object. Never returns null. * @throws IllegalArgumentException * if the String isn't a know representation of a color. */ public static BaseColor getRGBColor(String name) { int[] color = { 0, 0, 0, 255 }; String colorName = name.toLowerCase(); boolean colorStrWithoutHash = missingHashColorFormat(colorName); if (colorName.startsWith("#") || colorStrWithoutHash) { if (!colorStrWithoutHash) { // lop off the # to unify hex parsing. colorName = colorName.substring(1); } if (colorName.length() == 3) { String red = colorName.substring(0, 1); color[0] = Integer.parseInt(red + red, 16); String green = colorName.substring(1, 2); color[1] = Integer.parseInt(green + green, 16); String blue = colorName.substring(2); color[2] = Integer.parseInt(blue + blue, 16); return new BaseColor(color[0], color[1], color[2], color[3]); } if (colorName.length() == 6) { color[0] = Integer.parseInt(colorName.substring(0, 2), 16); color[1] = Integer.parseInt(colorName.substring(2, 4), 16); color[2] = Integer.parseInt(colorName.substring(4), 16); return new BaseColor(color[0], color[1], color[2], color[3]); } throw new IllegalArgumentException( MessageLocalization.getComposedMessage("unknown.color.format.must.be.rgb.or.rrggbb")); } if (colorName.startsWith("rgb(")) { final String delim = "rgb(), \t\r\n\f"; StringTokenizer tok = new StringTokenizer(colorName, delim); for (int k = 0; k < 3; ++k) { if (tok.hasMoreElements()) { color[k] = getRGBChannelValue(tok.nextToken()); color[k] = Math.max(0, color[k]); color[k] = Math.min(255, color[k]); } } return new BaseColor(color[0], color[1], color[2], color[3]); } if (colorName.startsWith("rgba(")) { final String delim = "rgba(), \t\r\n\f"; StringTokenizer tok = new StringTokenizer(colorName, delim); for (int k = 0; k < 3; ++k) { if (tok.hasMoreElements()) { color[k] = getRGBChannelValue(tok.nextToken()); color[k] = Math.max(0, color[k]); color[k] = Math.min(255, color[k]); } } if (tok.hasMoreElements()) { color[3] = (int) (255 * Float.parseFloat(tok.nextToken()) + 0.5); } return new BaseColor(color[0], color[1], color[2], color[3]); } if (!NAMES.containsKey(colorName)) { throw new IllegalArgumentException( MessageLocalization.getComposedMessage("color.not.found", new String[] { colorName })); } color = NAMES.get(colorName); return new BaseColor(color[0], color[1], color[2], color[3]); } private static int getRGBChannelValue(String rgbChannel) { if (rgbChannel.endsWith("%")) { return Integer.parseInt(rgbChannel.substring(0, rgbChannel.length() - 1)) * 255 / 100; } else { return Integer.parseInt(rgbChannel); } } }