3rdPartyLibraries/iTechSharp/iTextSharp/text/pdf/PdfNumber.cs

using System;

/*
 * $Id: PdfNumber.cs,v 1.4 2008/05/13 11:25:21 psoares33 Exp $
 * 
 *
 * Copyright 1999, 2000, 2001, 2002 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/
 */

namespace iTextSharp.text.pdf {

    /**
     * <CODE>PdfNumber</CODE> provides two types of numbers, int and real.
     * <P>
     * ints may be specified by signed or unsigned constants. Reals may only be
     * in decimal format.<BR>
     * This object is described in the 'Portable Document Format Reference Manual version 1.3'
     * section 4.3 (page 37).
     *
     * @see        PdfObject
     * @see        BadPdfFormatException
     */

    public class PdfNumber : PdfObject {
    
        /** actual value of this <CODE>PdfNumber</CODE>, represented as a <CODE>double</CODE> */
        private double value;
    
        // constructors
    
        /**
         * Constructs a <CODE>PdfNumber</CODE>-object.
         *
         * @param        content            value of the new <CODE>PdfNumber</CODE>-object
         */
    
        public PdfNumber(string content) : base(NUMBER) {
            try {
                value = Double.Parse(content.Trim(), System.Globalization.NumberFormatInfo.InvariantInfo);
                this.Content = content;
            }
            catch (Exception nfe){
                throw new Exception(content + " is not a valid number - " + nfe.ToString());
            }
        }
    
        /**
         * Constructs a new int <CODE>PdfNumber</CODE>-object.
         *
         * @param        value                value of the new <CODE>PdfNumber</CODE>-object
         */
    
        public PdfNumber(int value) : base(NUMBER) {
            this.value = value;
            this.Content = value.ToString();
        }
    
        /**
         * Constructs a new REAL <CODE>PdfNumber</CODE>-object.
         *
         * @param        value                value of the new <CODE>PdfNumber</CODE>-object
         */
    
        public PdfNumber(double value) : base(NUMBER) {
            this.value = value;
            Content = ByteBuffer.FormatDouble(value);
        }
    
        /**
         * Constructs a new REAL <CODE>PdfNumber</CODE>-object.
         *
         * @param        value                value of the new <CODE>PdfNumber</CODE>-object
         */
    
        public PdfNumber(float value) : this((double)value) {}
    
        // methods returning the value of this object
    
        /**
         * Returns the primitive <CODE>int</CODE> value of this object.
         *
         * @return        a value
         */
    
        public int IntValue {
            get {
                return (int) value;
            }
        }
    
        /**
         * Returns the primitive <CODE>double</CODE> value of this object.
         *
         * @return        a value
         */
    
        public double DoubleValue {
            get {
                return value;
            }
        }
    
        public float FloatValue {
            get {
                return (float)value;
            }
        }
    
        // other methods
    
        /**
         * Increments the value of the <CODE>PdfNumber</CODE>-object with 1.
         */
    
        public void Increment() {
            value += 1.0;
            Content = ByteBuffer.FormatDouble(value);
        }
    }
}