204 lines
8.6 KiB
C#
204 lines
8.6 KiB
C#
using System;
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using System.Collections;
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using iTextSharp.text.rtf.parser;
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/*
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* $Id: RtfCtrlWordMgr.cs,v 1.2 2008/05/13 11:25:59 psoares33 Exp $
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*
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*
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* Copyright 2007 by Howard Shank (hgshank@yahoo.com)
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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) 1999-2006 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) 2000-2006 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.rtf.parser.ctrlwords {
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/**
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* <code>RtfCtrlWordMgr</code> handles the dispatching of control words from
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* the table of known control words.
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*
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* @author Howard Shank (hgshank@yahoo.com)
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* @since 2.0.8
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*/
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public sealed class RtfCtrlWordMgr {
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public static bool debug = false;
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public static bool debugFound = false;
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public static bool debugNotFound = true;
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private PushbackStream reader = null;
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private RtfParser rtfParser = null;
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private RtfCtrlWordMap ctrlWordMap = null;
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/** The <code>RtfCtrlWordListener</code>. */
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private ArrayList listeners = new ArrayList();
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// // TIMING DEBUG INFO
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// private long endTime = 0;
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// private Date endDate = null;
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// private long endFree = 0;
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// private DecimalFormat df = new DecimalFormat("#,##0");
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// private Date startDate = new Date();
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// private long startTime = System.CurrentTimeMillis();
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// private long startFree = Runtime.GetRuntime().FreeMemory();
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/**
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* Constructor
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* @param rtfParser The parser object this manager works with.
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* @param reader the PushbackReader from the tokeniser.
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*/
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public RtfCtrlWordMgr(RtfParser rtfParser, PushbackStream reader) {
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this.rtfParser = rtfParser; // set the parser
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this.reader = reader; // set the reader value
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ctrlWordMap = new RtfCtrlWordMap(rtfParser);
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// // TIMING DEBUG INFO
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// endFree = Runtime.GetRuntime().FreeMemory();
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// endTime = System.CurrentTimeMillis();
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// endDate = new Date();
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// Console.Out.WriteLine("RtfCtrlWordMgr start date: " + startDate.ToLocaleString());
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// Console.Out.WriteLine("RtfCtrlWordMgr end date : " + endDate.ToLocaleString());
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// Console.Out.WriteLine(" Elapsed time : " + Long.ToString(endTime - startTime) + " milliseconds.");
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// Console.Out.WriteLine("Begin Constructor RtfCtrlWordMgr , free mem is " + df.Format(startFree / 1024) + "k");
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// Console.Out.WriteLine("End Constructor RtfCtrlWordMgr , free mem is " + df.Format(endFree / 1024) + "k");
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// Console.Out.WriteLine("RtfCtrlWordMgr used approximately " + df.Format((startFree - endFree) / 1024) + "k");
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}
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/**
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* Internal to control word manager class.
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*
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* @param ctrlWordData The <code>RtfCtrlWordData</code> object with control word and param
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* @param groupLevel The current document group parsing level
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* @return errOK if ok, otherwise an error code.
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*/
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public int HandleKeyword(RtfCtrlWordData ctrlWordData, int groupLevel) {
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//TODO: May be used for event handling.
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int result = RtfParser.errOK;
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// Call before handler event here
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BeforeCtrlWord(ctrlWordData);
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result = DispatchKeyword(ctrlWordData, groupLevel);
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// call after handler event here
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AfterCtrlWord(ctrlWordData);
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return result;
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}
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/**
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* Dispatch the token to the correct control word handling object.
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*
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* @param ctrlWordData The <code>RtfCtrlWordData</code> object with control word and param
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* @param groupLevel The current document group parsing level
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* @return errOK if ok, otherwise an error code.
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*/
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private int DispatchKeyword(RtfCtrlWordData ctrlWordData, int groupLevel) {
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int result = RtfParser.errOK;
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if (ctrlWordData != null) {
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RtfCtrlWordHandler ctrlWord = ctrlWordMap.GetCtrlWordHandler(ctrlWordData.ctrlWord);
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if (ctrlWord != null) {
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ctrlWord.HandleControlword(ctrlWordData);
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if (debug && debugFound) {
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Console.Out.WriteLine("Keyword found:" +
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" New:" + ctrlWordData.ctrlWord +
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" Param:" + ctrlWordData.param +
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" bParam=" + ctrlWordData.hasParam.ToString());
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}
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} else {
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result = RtfParser.errCtrlWordNotFound;
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//result = RtfParser2.errAssertion;
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if (debug && debugNotFound) {
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Console.Out.WriteLine("Keyword unknown:" +
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" New:" + ctrlWordData.ctrlWord +
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" Param:" + ctrlWordData.param +
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" bParam=" + ctrlWordData.hasParam.ToString());
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}
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}
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}
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return result;
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}
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// listener methods
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/**
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* Adds a <CODE>RtfCtrlWordListener</CODE> to the <CODE>RtfCtrlWordMgr</CODE>.
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*
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* @param listener
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* the new RtfCtrlWordListener.
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*/
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public void AddRtfCtrlWordListener(IRtfCtrlWordListener listener) {
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listeners.Add(listener);
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}
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/**
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* Removes a <CODE>RtfCtrlWordListener</CODE> from the <CODE>RtfCtrlWordMgr</CODE>.
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*
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* @param listener
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* the RtfCtrlWordListener that has to be removed.
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*/
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public void RemoveRtfCtrlWordListener(IRtfCtrlWordListener listener) {
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listeners.Remove(listener);
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}
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private bool BeforeCtrlWord(RtfCtrlWordData ctrlWordData) {
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foreach (IRtfCtrlWordListener listener in listeners) {
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listener.BeforeCtrlWord(ctrlWordData);
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}
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return true;
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}
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private bool OnCtrlWord(RtfCtrlWordData ctrlWordData) {
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foreach (IRtfCtrlWordListener listener in listeners) {
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listener.OnCtrlWord(ctrlWordData);
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}
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return true;
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}
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private bool AfterCtrlWord(RtfCtrlWordData ctrlWordData) {
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foreach (IRtfCtrlWordListener listener in listeners) {
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listener.AfterCtrlWord(ctrlWordData);
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}
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return true;
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}
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}
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} |