Java tutorial
/* * * This file is part of the iText (R) project. Copyright (c) 1998-2019 iText Group NV * Ackermann, 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.tool.xml.css; import com.itextpdf.tool.xml.Tag; import java.util.*; import java.util.Map.Entry; /** * @author itextpdf.com * */ public class CssFilesImpl implements CssFiles { private final List<CssFile> files; private final CssUtils utils; /** * Constructs a new CssFilesImpl. */ public CssFilesImpl() { this.files = new ArrayList<CssFile>(); this.utils = CssUtils.getInstance(); } /** * Construct a new CssFilesImpl with the given css file. * @param css the css file */ public CssFilesImpl(final CssFile css) { this(); this.add(css); } /* * (non-Javadoc) * * @see com.itextpdf.tool.xml.css.CssFiles#hasFiles() */ public boolean hasFiles() { return !this.files.isEmpty(); } /** * Processes a tag and retrieves CSS. Selectors created: * <ul> * <li>element</li> * <li>element>element (and a spaced version element > element)</li> * <li>#id</li> * <li>.class</li> * <li>element+element ( and a spaced version element + element)</li> * </ul> */ public Map<String, String> getCSS(final Tag t) { Map<String, String> aggregatedProps = new LinkedHashMap<String, String>(); populateCss(t, aggregatedProps); return aggregatedProps; } public void populateCss(final Tag t, final Map<String, String> aggregatedProps) { List<CssRule> rules = new ArrayList<CssRule>(); for (CssFile cssFile : this.files) { rules.addAll(cssFile.get(t)); } Collections.sort(rules); for (CssRule rule : rules) populateOneCss(aggregatedProps, rule.getNormalDeclarations()); for (CssRule rule : rules) populateOneCss(aggregatedProps, rule.getImportantDeclarations()); } public void populateOneCss(final Map<String, String> aggregatedProps, final Map<String, String> cssDeclaration) { Map<String, String> css = new LinkedHashMap<String, String>(); for (Entry<String, String> e : cssDeclaration.entrySet()) { String key = utils.stripDoubleSpacesTrimAndToLowerCase(e.getKey()); String value = utils.stripDoubleSpacesAndTrim(e.getValue()); if (CSS.Property.BORDER.equalsIgnoreCase(key)) { css.putAll(utils.parseBorder(value)); } else if (CSS.Property.BORDER_TOP.equalsIgnoreCase(key)) { css.putAll(utils.parseBorder(value, CSS.Property.BORDER_TOP)); } else if (CSS.Property.BORDER_BOTTOM.equalsIgnoreCase(key)) { css.putAll(utils.parseBorder(value, CSS.Property.BORDER_BOTTOM)); } else if (CSS.Property.BORDER_LEFT.equalsIgnoreCase(key)) { css.putAll(utils.parseBorder(value, CSS.Property.BORDER_LEFT)); } else if (CSS.Property.BORDER_RIGHT.equalsIgnoreCase(key)) { css.putAll(utils.parseBorder(value, CSS.Property.BORDER_RIGHT)); } else if (CSS.Property.MARGIN.equalsIgnoreCase(key)) { Map<String, String> margins = utils.parseBoxValues(value, "margin-", ""); for (String marginKey : margins.keySet()) { if (!css.containsKey(marginKey)) { css.put(marginKey, margins.get(marginKey)); } } } else if (CSS.Property.BORDER_WIDTH.equalsIgnoreCase(key)) { css.putAll(utils.parseBoxValues(value, "border-", "-width")); } else if (CSS.Property.BORDER_STYLE.equalsIgnoreCase(key)) { css.putAll(utils.parseBoxValues(value, "border-", "-style")); } else if (CSS.Property.BORDER_COLOR.equalsIgnoreCase(key)) { css.putAll(utils.parseBoxValues(value, "border-", "-color")); } else if (CSS.Property.PADDING.equalsIgnoreCase(key)) { Map<String, String> paddings = utils.parseBoxValues(value, "padding-", ""); for (String paddingKey : paddings.keySet()) { if (!css.containsKey(paddingKey)) { css.put(paddingKey, paddings.get(paddingKey)); } } //css.putAll(utils.parseBoxValues(value, "padding-", "")); } else if (CSS.Property.FONT.equalsIgnoreCase(key)) { css.putAll(utils.processFont(value)); } else if (CSS.Property.LIST_STYLE.equalsIgnoreCase(key)) { css.putAll(utils.processListStyle(value)); } else if (key.toLowerCase().contains(CSS.Property.BACKGROUND)) { Map<String, String> backgroundStyles = utils.processBackground(value); for (String backgroundKey : backgroundStyles.keySet()) { if (!css.containsKey(backgroundKey)) { css.put(backgroundKey, backgroundStyles.get(backgroundKey)); } } } else { css.put(key, value); } } aggregatedProps.putAll(css); } /* (non-Javadoc) * @see com.itextpdf.tool.xml.css.CssFiles#addFile(com.itextpdf.tool.xml.css.CssFile) */ public void add(final CssFile css) { if (css != null) { this.files.add(css); } } /* (non-Javadoc) * @see com.itextpdf.tool.xml.css.CssFiles#clear() */ public void clear() { Iterator<CssFile> iterator = files.iterator(); while (iterator.hasNext()) { CssFile next = iterator.next(); if (!next.isPersistent()) { iterator.remove(); } } } }