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 --- .../text/pdf/events/PdfPageEventForwarder.java | 312 +++++++++++++++++++++ 1 file changed, 312 insertions(+) create mode 100644 src/main/java/com/lowagie/text/pdf/events/PdfPageEventForwarder.java (limited to 'src/main/java/com/lowagie/text/pdf/events/PdfPageEventForwarder.java') diff --git a/src/main/java/com/lowagie/text/pdf/events/PdfPageEventForwarder.java b/src/main/java/com/lowagie/text/pdf/events/PdfPageEventForwarder.java new file mode 100644 index 0000000..58bf3c2 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/events/PdfPageEventForwarder.java @@ -0,0 +1,312 @@ +/* + * $Id: PdfPageEventForwarder.java,v 1.1 2005/10/07 07:14:18 blowagie Exp $ + * $Name: $ + * + * Copyright 2005 Bruno Lowagie + * + * 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.events; + +import java.util.ArrayList; +import java.util.Iterator; + +import com.lowagie.text.Document; +import com.lowagie.text.Rectangle; +import com.lowagie.text.Paragraph; +import com.lowagie.text.pdf.PdfPageEvent; +import com.lowagie.text.pdf.PdfWriter; + +/** + * If you want to add more than one page event to a PdfWriter, + * you have to construct a PdfPageEventForwarder, add the + * different events to this object and add the forwarder to + * the PdfWriter. + */ + +public class PdfPageEventForwarder implements PdfPageEvent { + + /** ArrayList containing all the PageEvents that have to be executed. */ + protected ArrayList events = new ArrayList(); + + /** + * Add a page event to the forwarder. + * @param event an event that has to be added to the forwarder. + */ + public void addPageEvent(PdfPageEvent event) { + events.add(event); + } + + /** + * Called when the document is opened. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + */ + public void onOpenDocument(PdfWriter writer, Document document) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onOpenDocument(writer, document); + } + } + + /** + * Called when a page is initialized. + *

+ * Note that if even if a page is not written this method is still called. + * It is preferable to use onEndPage to avoid infinite loops. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + */ + public void onStartPage(PdfWriter writer, Document document) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onStartPage(writer, document); + } + } + + /** + * Called when a page is finished, just before being written to the + * document. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + */ + public void onEndPage(PdfWriter writer, Document document) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onEndPage(writer, document); + } + } + + /** + * Called when the document is closed. + *

+ * Note that this method is called with the page number equal to the last + * page plus one. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + */ + public void onCloseDocument(PdfWriter writer, Document document) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onCloseDocument(writer, document); + } + } + + /** + * Called when a Paragraph is written. + *

+ * paragraphPosition will hold the height at which the + * paragraph will be written to. This is useful to insert bookmarks with + * more control. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + * @param paragraphPosition + * the position the paragraph will be written to + */ + public void onParagraph(PdfWriter writer, Document document, + float paragraphPosition) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onParagraph(writer, document, paragraphPosition); + } + } + + /** + * Called when a Paragraph is written. + *

+ * paragraphPosition will hold the height of the end of the + * paragraph. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + * @param paragraphPosition + * the position of the end of the paragraph + */ + public void onParagraphEnd(PdfWriter writer, Document document, + float paragraphPosition) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onParagraphEnd(writer, document, paragraphPosition); + } + } + + /** + * Called when a Chapter is written. + *

+ * position will hold the height at which the chapter will be + * written to. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + * @param paragraphPosition + * the position the chapter will be written to + * @param title + * the title of the Chapter + */ + public void onChapter(PdfWriter writer, Document document, + float paragraphPosition, Paragraph title) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onChapter(writer, document, paragraphPosition, title); + } + } + + /** + * Called when the end of a Chapter is reached. + *

+ * position will hold the height of the end of the chapter. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + * @param position + * the position of the end of the chapter. + */ + public void onChapterEnd(PdfWriter writer, Document document, float position) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onChapterEnd(writer, document, position); + } + } + + /** + * Called when a Section is written. + *

+ * position will hold the height at which the section will be + * written to. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + * @param paragraphPosition + * the position the section will be written to + * @param depth + * the number depth of the Section + * @param title + * the title of the section + */ + public void onSection(PdfWriter writer, Document document, + float paragraphPosition, int depth, Paragraph title) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onSection(writer, document, paragraphPosition, depth, title); + } + } + + /** + * Called when the end of a Section is reached. + *

+ * position will hold the height of the section end. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + * @param position + * the position of the end of the section + */ + public void onSectionEnd(PdfWriter writer, Document document, float position) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onSectionEnd(writer, document, position); + } + } + + /** + * Called when a Chunk with a generic tag is written. + *

+ * It is usefull to pinpoint the Chunk location to generate + * bookmarks, for example. + * + * @param writer + * the PdfWriter for this document + * @param document + * the document + * @param rect + * the Rectangle containing the Chunk + * + * @param text + * the text of the tag + */ + public void onGenericTag(PdfWriter writer, Document document, + Rectangle rect, String text) { + PdfPageEvent event; + for (Iterator i = events.iterator(); i.hasNext(); ) { + event = (PdfPageEvent)i.next(); + event.onGenericTag(writer, document, rect, text); + } + } +} \ No newline at end of file -- cgit v1.2.3