gt: 			put(PdfName.T, new PdfString(s, PdfObject.TEXT_UNICODE));
context: /*
   * Copyright 2002 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 com.lowagie.text.Rectangle;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  
  /**
   * Implements form fields.
   *
   * @author Paulo Soares (psoares@consiste.pt)
   */
  public class PdfFormField extends PdfAnnotation
  {
  
  	public static final int FF_READ_ONLY = 1;
  	public static final int FF_REQUIRED = 2;
  	public static final int FF_NO_EXPORT = 4;
  	public static final int FF_NO_TOGGLE_TO_OFF = 16384;
  	public static final int FF_RADIO = 32768;
  	public static final int FF_PUSHBUTTON = 65536;
  	public static final int FF_MULTILINE = 4096;
  	public static final int FF_PASSWORD = 8192;
  	public static final int FF_COMBO = 131072;
  	public static final int FF_EDIT = 262144;
  	public static final int FF_FILESELECT = 1048576;
  	public static final int FF_MULTISELECT = 2097152;
  	public static final int FF_DONOTSPELLCHECK = 4194304;
  	public static final int FF_DONOTSCROLL = 8388608;
  	public static final int FF_COMB = 16777216;
  	public static final int FF_RADIOSINUNISON = 1 << 25;
  	public static final int Q_LEFT = 0;
  	public static final int Q_CENTER = 1;
  	public static final int Q_RIGHT = 2;
  	public static final int MK_NO_ICON = 0;
  	public static final int MK_NO_CAPTION = 1;
  	public static final int MK_CAPTION_BELOW = 2;
  	public static final int MK_CAPTION_ABOVE = 3;
  	public static final int MK_CAPTION_RIGHT = 4;
  	public static final int MK_CAPTION_LEFT = 5;
  	public static final int MK_CAPTION_OVERLAID = 6;
  	public static final PdfName IF_SCALE_ALWAYS = PdfName.A;
  	public static final PdfName IF_SCALE_BIGGER = PdfName.B;
  	public static final PdfName IF_SCALE_SMALLER = PdfName.S;
  	public static final PdfName IF_SCALE_NEVER = PdfName.N;
  	public static final PdfName IF_SCALE_ANAMORPHIC = PdfName.A;
  	public static final PdfName IF_SCALE_PROPORTIONAL = PdfName.P;
  	public static final boolean MULTILINE = true;
  	public static final boolean SINGLELINE = false;
  	public static final boolean PLAINTEXT = false;
  	public static final boolean PASSWORD = true;
  	static PdfName mergeTarget[] = {PdfName.FONT, PdfName.XOBJECT, PdfName.COLORSPACE, PdfName.PATTERN};
  
  	/**
  	 * Holds value of property parent.
  	 */
  	protected PdfFormField parent;
  
  	protected ArrayList kids;
  
  	/**
  	 * Constructs a new <CODE>PdfAnnotation</CODE> of subtype link (Action).
  	 */
  
  	public PdfFormField(PdfWriter writer, float llx, float lly, float urx, float ury, PdfAction action)
  	{
  		super(writer, llx, lly, urx, ury, action);
  		put(PdfName.TYPE, PdfName.ANNOT);
  		put(PdfName.SUBTYPE, PdfName.WIDGET);
  		annotation = true;
  	}
  
  	/**
  	 * Creates new PdfFormField
  	 */
  	protected PdfFormField(PdfWriter writer)
  	{
  		super(writer, null);
  		form = true;
  		annotation = false;
  	}
  
  	public void setWidget(Rectangle rect, PdfName highlight)
  	{
  		put(PdfName.TYPE, PdfName.ANNOT);
  		put(PdfName.SUBTYPE, PdfName.WIDGET);
  		put(PdfName.RECT, new PdfRectangle(rect));
  		annotation = true;
  		if(highlight != null && !highlight.equals(HIGHLIGHT_INVERT))
  			put(PdfName.H, highlight);
  	}
  
  	public static PdfFormField createEmpty(PdfWriter writer)
  	{
  		PdfFormField field = new PdfFormField(writer);
  		return field;
  	}
  
  	public void setButton(int flags)
  	{
  		put(PdfName.FT, PdfName.BTN);
  		if(flags != 0)
  			put(PdfName.FF, new PdfNumber(flags));
  	}
  
  	protected static PdfFormField createButton(PdfWriter writer, int flags)
  	{
  		PdfFormField field = new PdfFormField(writer);
  		field.setButton(flags);
  		return field;
  	}
  
  	public static PdfFormField createPushButton(PdfWriter writer)
  	{
  		return createButton(writer, FF_PUSHBUTTON);
  	}
  
  	public static PdfFormField createCheckBox(PdfWriter writer)
  	{
  		return createButton(writer, 0);
  	}
  
  	public static PdfFormField createRadioButton(PdfWriter writer, boolean noToggleToOff)
  	{
  		return createButton(writer, FF_RADIO + (noToggleToOff ? FF_NO_TOGGLE_TO_OFF : 0));
  	}
  
  	public static PdfFormField createTextField(PdfWriter writer, boolean multiline, boolean password, int maxLen)
  	{
  		PdfFormField field = new PdfFormField(writer);
  		field.put(PdfName.FT, PdfName.TX);
  		int flags = (multiline ? FF_MULTILINE : 0);
  		flags += (password ? FF_PASSWORD : 0);
  		field.put(PdfName.FF, new PdfNumber(flags));
  		if(maxLen > 0)
  			field.put(PdfName.MAXLEN, new PdfNumber(maxLen));
  		return field;
  	}
  
  	protected static PdfFormField createChoice(PdfWriter writer, int flags, PdfArray options, int topIndex)
  	{
  		PdfFormField field = new PdfFormField(writer);
  		field.put(PdfName.FT, PdfName.CH);
  		field.put(PdfName.FF, new PdfNumber(flags));
  		field.put(PdfName.OPT, options);
  		if(topIndex > 0)
  			field.put(PdfName.TI, new PdfNumber(topIndex));
  		return field;
  	}
  
  	public static PdfFormField createList(PdfWriter writer, String options[], int topIndex)
  	{
  		return createChoice(writer, 0, processOptions(options), topIndex);
  	}
  
  	public static PdfFormField createList(PdfWriter writer, String options[][], int topIndex)
  	{
  		return createChoice(writer, 0, processOptions(options), topIndex);
  	}
  
  	public static PdfFormField createCombo(PdfWriter writer, boolean edit, String options[], int topIndex)
  	{
  		return createChoice(writer, FF_COMBO + (edit ? FF_EDIT : 0), processOptions(options), topIndex);
  	}
  
  	public static PdfFormField createCombo(PdfWriter writer, boolean edit, String options[][], int topIndex)
  	{
  		return createChoice(writer, FF_COMBO + (edit ? FF_EDIT : 0), processOptions(options), topIndex);
  	}
  
  	protected static PdfArray processOptions(String options[])
  	{
  		PdfArray array = new PdfArray();
  		for(int k = 0; k < options.length; ++k)
  		{
  			array.add(new PdfString(options[k], PdfObject.TEXT_UNICODE));
  		}
  		return array;
  	}
  
  	protected static PdfArray processOptions(String options[][])
  	{
  		PdfArray array = new PdfArray();
  		for(int k = 0; k < options.length; ++k)
  		{
  			String subOption[] = options[k];
  			PdfArray ar2 = new PdfArray(new PdfString(subOption[0], PdfObject.TEXT_UNICODE));
  			ar2.add(new PdfString(subOption[1], PdfObject.TEXT_UNICODE));
  			array.add(ar2);
  		}
  		return array;
  	}
  
  	public static PdfFormField createSignature(PdfWriter writer)
  	{
  		PdfFormField field = new PdfFormField(writer);
  		field.put(PdfName.FT, PdfName.SIG);
  		return field;
  	}
  
  	/**
  	 * Getter for property parent.
  	 *
  	 * @return Value of property parent.
  	 */
  	public PdfFormField getParent()
  	{
  		return parent;
  	}
  
  	public void addKid(PdfFormField field)
  	{
  		field.parent = this;
  		if(kids == null)
  			kids = new ArrayList();
  		kids.add(field);
  	}
  
  	public ArrayList getKids()
  	{
  		return kids;
  	}
  
  	public int setFieldFlags(int flags)
  	{
  		PdfNumber obj = (PdfNumber) get(PdfName.FF);
  		int old;
  		if(obj == null)
  			old = 0;
  		else
  			old = obj.intValue();
  		int v = old | flags;
  		put(PdfName.FF, new PdfNumber(v));
  		return old;
  	}
  
  	public void setValueAsString(String s)
  	{
  		put(PdfName.V, new PdfString(s, PdfObject.TEXT_UNICODE));
  	}
  
  	public void setValueAsName(String s)
  	{
  		put(PdfName.V, new PdfName(s));
  	}
  
  	public void setValue(PdfSignature sig)
  	{
  		put(PdfName.V, sig);
  	}
  
  	public void setDefaultValueAsString(String s)
  	{
  		put(PdfName.DV, new PdfString(s, PdfObject.TEXT_UNICODE));
  	}
  
  	public void setDefaultValueAsName(String s)
  	{
  		put(PdfName.DV, new PdfName(s));
  	}
  
  	public void setFieldName(String s)
  	{
  		if(s != null)
  