From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001 From: tknall Date: Fri, 1 Dec 2006 12:20:24 +0000 Subject: Initial import of release 2.2. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../com/lowagie/text/pdf/PdfLayerMembership.java | 139 +++++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 src/main/java/com/lowagie/text/pdf/PdfLayerMembership.java (limited to 'src/main/java/com/lowagie/text/pdf/PdfLayerMembership.java') diff --git a/src/main/java/com/lowagie/text/pdf/PdfLayerMembership.java b/src/main/java/com/lowagie/text/pdf/PdfLayerMembership.java new file mode 100644 index 0000000..3a5be50 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/PdfLayerMembership.java @@ -0,0 +1,139 @@ +/* + * Copyright 2004 by Paulo Soares. + * + * The contents of this file are subject to the Mozilla Public License Version 1.1 + * (the "License"); you may not use this file except in compliance with the License. + * You may obtain a copy of the License at http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the License. + * + * The Original Code is 'iText, a free JAVA-PDF library'. + * + * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by + * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie. + * All Rights Reserved. + * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer + * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved. + * + * Contributor(s): all the names of the contributors are added in the source code + * where applicable. + * + * Alternatively, the contents of this file may be used under the terms of the + * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the + * provisions of LGPL are applicable instead of those above. If you wish to + * allow use of your version of this file only under the terms of the LGPL + * License and not to allow others to use your version of this file under + * the MPL, indicate your decision by deleting the provisions above and + * replace them with the notice and other provisions required by the LGPL. + * If you do not delete the provisions above, a recipient may use your version + * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the MPL as stated above or under the terms of the GNU + * Library General Public License as published by the Free Software Foundation; + * either version 2 of the License, or any later version. + * + * This library 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 Library general Public License for more + * details. + * + * If you didn't download this code from the following link, you should check if + * you aren't using an obsolete version: + * http://www.lowagie.com/iText/ + */ + +package com.lowagie.text.pdf; + +import java.util.HashSet; +import java.util.Collection; + +/** + * Content typically belongs to a single optional content group, + * and is visible when the group is ON and invisible when it is OFF. To express more + * complex visibility policies, content should not declare itself to belong to an optional + * content group directly, but rather to an optional content membership dictionary + * represented by this class. + * + * @author Paulo Soares (psoares@consiste.pt) + */ +public class PdfLayerMembership extends PdfDictionary implements PdfOCG { + + /** + * Visible only if all of the entries are ON. + */ + public static PdfName ALLON = new PdfName("AllOn"); + /** + * Visible if any of the entries are ON. + */ + public static PdfName ANYON = new PdfName("AnyOn"); + /** + * Visible if any of the entries are OFF. + */ + public static PdfName ANYOFF = new PdfName("AnyOff"); + /** + * Visible only if all of the entries are OFF. + */ + public static PdfName ALLOFF = new PdfName("AllOff"); + + PdfIndirectReference ref; + PdfArray members = new PdfArray(); + HashSet layers = new HashSet(); + + /** + * Creates a new, empty, membership layer. + * @param writer the writer + */ + public PdfLayerMembership(PdfWriter writer) { + super(PdfName.OCMD); + put(PdfName.OCGS, members); + ref = writer.getPdfIndirectReference(); + } + + /** + * Gets the PdfIndirectReference that represents this membership layer. + * @return the PdfIndirectReference that represents this layer + */ + public PdfIndirectReference getRef() { + return ref; + } + + /** + * Adds a new member to the layer. + * @param layer the new member to the layer + */ + public void addMember(PdfLayer layer) { + if (!layers.contains(layer)) { + members.add(layer.getRef()); + layers.add(layer); + } + } + + /** + * Gets the member layers. + * @return the member layers + */ + public Collection getLayers() { + return layers; + } + + /** + * Sets the visibility policy for content belonging to this + * membership dictionary. Possible values are ALLON, ANYON, ANYOFF and ALLOFF. + * The default value is ANYON. + * @param type the visibility policy + */ + public void setVisibilityPolicy(PdfName type) { + put(PdfName.P, type); + } + + /** + * Gets the dictionary representing the membership layer. It just returns this. + * @return the dictionary representing the layer + */ + public PdfObject getPdfObject() { + return this; + } +} -- cgit v1.2.3