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iTechSharp/iTextSharp/text/pdf/events/PdfPageEventForwarder.cs
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286
iTechSharp/iTextSharp/text/pdf/events/PdfPageEventForwarder.cs
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using System;
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using System.Collections;
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using iTextSharp.text;
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using iTextSharp.text.pdf;
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/*
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* $Id: PdfPageEventForwarder.cs,v 1.2 2008/05/13 11:25:40 psoares33 Exp $
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*
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*
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* Copyright 2005 Bruno Lowagie
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the License.
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*
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* The Original Code is 'iText, a free JAVA-PDF library'.
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*
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* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
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* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
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* All Rights Reserved.
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* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
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* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
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*
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* Contributor(s): all the names of the contributors are added in the source code
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* where applicable.
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*
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* Alternatively, the contents of this file may be used under the terms of the
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* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
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* provisions of LGPL are applicable instead of those above. If you wish to
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* allow use of your version of this file only under the terms of the LGPL
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* License and not to allow others to use your version of this file under
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* the MPL, indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by the LGPL.
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* If you do not delete the provisions above, a recipient may use your version
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* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the MPL as stated above or under the terms of the GNU
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* Library General Public License as published by the Free Software Foundation;
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* either version 2 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
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* details.
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*
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* If you didn't download this code from the following link, you should check if
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* you aren't using an obsolete version:
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* http://www.lowagie.com/iText/
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*/
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namespace iTextSharp.text.pdf.events {
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/**
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* If you want to add more than one page eventa to a PdfWriter,
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* you have to construct a PdfPageEventForwarder, add the
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* different events to this object and add the forwarder to
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* the PdfWriter.
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*/
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public class PdfPageEventForwarder : IPdfPageEvent {
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/** ArrayList containing all the PageEvents that have to be executed. */
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protected ArrayList events = new ArrayList();
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/**
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* Add a page eventa to the forwarder.
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* @param eventa an eventa that has to be added to the forwarder.
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*/
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public void AddPageEvent(IPdfPageEvent eventa) {
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events.Add(eventa);
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}
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/**
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* Called when the document is opened.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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*/
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public virtual void OnOpenDocument(PdfWriter writer, Document document) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnOpenDocument(writer, document);
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}
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}
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/**
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* Called when a page is initialized.
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* <P>
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* Note that if even if a page is not written this method is still called.
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* It is preferable to use <CODE>onEndPage</CODE> to avoid infinite loops.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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*/
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public virtual void OnStartPage(PdfWriter writer, Document document) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnStartPage(writer, document);
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}
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}
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/**
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* Called when a page is finished, just before being written to the
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* document.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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*/
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public virtual void OnEndPage(PdfWriter writer, Document document) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnEndPage(writer, document);
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}
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}
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/**
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* Called when the document is closed.
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* <P>
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* Note that this method is called with the page number equal to the last
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* page plus one.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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*/
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public virtual void OnCloseDocument(PdfWriter writer, Document document) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnCloseDocument(writer, document);
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}
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}
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/**
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* Called when a Paragraph is written.
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* <P>
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* <CODE>paragraphPosition</CODE> will hold the height at which the
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* paragraph will be written to. This is useful to insert bookmarks with
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* more control.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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* @param paragraphPosition
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* the position the paragraph will be written to
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*/
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public virtual void OnParagraph(PdfWriter writer, Document document,
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float paragraphPosition) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnParagraph(writer, document, paragraphPosition);
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}
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}
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/**
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* Called when a Paragraph is written.
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* <P>
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* <CODE>paragraphPosition</CODE> will hold the height of the end of the
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* paragraph.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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* @param paragraphPosition
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* the position of the end of the paragraph
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*/
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public virtual void OnParagraphEnd(PdfWriter writer, Document document,
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float paragraphPosition) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnParagraphEnd(writer, document, paragraphPosition);
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}
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}
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/**
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* Called when a Chapter is written.
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* <P>
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* <CODE>position</CODE> will hold the height at which the chapter will be
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* written to.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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* @param paragraphPosition
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* the position the chapter will be written to
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* @param title
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* the title of the Chapter
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*/
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public virtual void OnChapter(PdfWriter writer, Document document,
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float paragraphPosition, Paragraph title) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnChapter(writer, document, paragraphPosition, title);
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}
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}
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/**
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* Called when the end of a Chapter is reached.
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* <P>
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* <CODE>position</CODE> will hold the height of the end of the chapter.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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* @param position
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* the position of the end of the chapter.
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*/
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public virtual void OnChapterEnd(PdfWriter writer, Document document, float position) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnChapterEnd(writer, document, position);
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}
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}
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/**
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* Called when a Section is written.
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* <P>
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* <CODE>position</CODE> will hold the height at which the section will be
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* written to.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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* @param paragraphPosition
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* the position the section will be written to
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* @param depth
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* the number depth of the Section
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* @param title
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* the title of the section
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*/
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public virtual void OnSection(PdfWriter writer, Document document,
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float paragraphPosition, int depth, Paragraph title) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnSection(writer, document, paragraphPosition, depth, title);
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}
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}
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/**
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* Called when the end of a Section is reached.
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* <P>
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* <CODE>position</CODE> will hold the height of the section end.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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* @param position
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* the position of the end of the section
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*/
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public virtual void OnSectionEnd(PdfWriter writer, Document document, float position) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnSectionEnd(writer, document, position);
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}
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}
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/**
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* Called when a <CODE>Chunk</CODE> with a generic tag is written.
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* <P>
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* It is usefull to pinpoint the <CODE>Chunk</CODE> location to generate
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* bookmarks, for example.
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*
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* @param writer
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* the <CODE>PdfWriter</CODE> for this document
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* @param document
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* the document
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* @param rect
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* the <CODE>Rectangle</CODE> containing the <CODE>Chunk
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* </CODE>
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* @param text
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* the text of the tag
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*/
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public virtual void OnGenericTag(PdfWriter writer, Document document,
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Rectangle rect, String text) {
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foreach (IPdfPageEvent eventa in events) {
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eventa.OnGenericTag(writer, document, rect, text);
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}
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}
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}
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}
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