/**
* $Id: RtfColorTableParser.java 2738 2007-05-04 10:04:43Z hallm $
* $Name$
*
* Copyright 2006 by Mark Hall
*
* 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) 1999-2006 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000-2006 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.rtf.direct;
import java.awt.Color;
/**
* The RtfColorTableParser handles the events generated
* by the RtfTokeniser while the RTF color table is
* being parsed.
*
* @version $Revision: 2738 $
* @author Mark Hall (mhall@edu.uni-klu.ac.at)
*/
public class RtfColorTableParser {
/**
* The RtfImportHeader to add color mappings to.
*/
private RtfImportHeader importHeader = null;
/**
* The number of the current color being parsed.
*/
private int colorNr = 0;
/**
* The red component of the current color being parsed.
*/
private int red = -1;
/**
* The green component of the current color being parsed.
*/
private int green = -1;
/**
* The blue component of the current color being parsed.
*/
private int blue = -1;
/**
* Constructs a new RtfColorTableParser.
*
* @param importHeader The RtfImportHeader to add the color mappings to.
*/
public RtfColorTableParser(RtfImportHeader importHeader) {
this.importHeader = importHeader;
this.colorNr = 0;
this.red = -1;
this.green = -1;
this.blue = -1;
}
public static boolean stringMatches(String text, String start) {
if (!text.startsWith(start))
return false;
int first = start.length();
int last = text.length();
if (first == last)
return false;
for (int k = first; k < last; ++k) {
char c = text.charAt(k);
if (c < '0' || c > '9')
return false;
}
return true;
}
/**
* Handle RTF control words. The relevant control words are
* \red, \green and \blue each with a number specifying the
* value for that component.
*
* @param ctrlWord The control word to handle.
* @param groupLevel Unused
*/
public void handleCtrlWord(String ctrlWord, int groupLevel) {
if (stringMatches(ctrlWord, "\\red"))
this.red = Integer.parseInt(ctrlWord.substring(4));
else if (stringMatches(ctrlWord, "\\green"))
this.green = Integer.parseInt(ctrlWord.substring(6));
else if (stringMatches(ctrlWord, "\\blue"))
this.blue = Integer.parseInt(ctrlWord.substring(5));
}
/**
* Handle text content. This is to find the end of each color
* definition, because they are separated by a semicolon (;).
*
* @param text The text to handle.
* @param groupLevel Unused.
*/
public void handleText(String text, int groupLevel) {
if(text.indexOf(';') != -1) {
if(red != -1 && green != -1 && blue != -1) {
this.importHeader.importColor(Integer.toString(this.colorNr), new Color(this.red, this.green, this.blue));
}
this.colorNr++;
}
}
}
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