Initial Commit

iTechSharp/iTextSharp/text/pdf/PdfIndirectReference.cs

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+using System;
+using System.Text;
+
+/*
+ * $Id: PdfIndirectReference.cs,v 1.5 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>PdfIndirectReference</CODE> contains a reference to a <CODE>PdfIndirectObject</CODE>.
+     * <P>
+     * Any object used as an element of an array or as a value in a dictionary may be specified
+     * by either a direct object of an indirect reference. An <I>indirect reference</I> is a reference
+     * to an indirect object, and consists of the indirect object's object number, generation number
+     * and the <B>R</B> keyword.<BR>
+     * This object is described in the 'Portable Document Format Reference Manual version 1.3'
+     * section 4.11 (page 54).
+     *
+     * @see        PdfObject
+     * @see        PdfIndirectObject
+     */
+
+    public class PdfIndirectReference : PdfObject {
+    
+        // membervariables
+    
+        /** the object number */
+        protected int number;
+    
+        /** the generation number */
+        protected int generation = 0;
+    
+        // constructors
+    
+        protected PdfIndirectReference() : base(0) {
+        }
+        
+        /**
+         * Constructs a <CODE>PdfIndirectReference</CODE>.
+         *
+         * @param        type            the type of the <CODE>PdfObject</CODE> that is referenced to
+         * @param        number            the object number.
+         * @param        generation        the generation number.
+         */
+    
+        internal PdfIndirectReference(int type, int number, int generation) : base(0, new StringBuilder().Append(number).Append(' ').Append(generation).Append(" R").ToString()) {
+            this.number = number;
+            this.generation = generation;
+        }
+    
+        /**
+         * Constructs a <CODE>PdfIndirectReference</CODE>.
+         *
+         * @param        type            the type of the <CODE>PdfObject</CODE> that is referenced to
+         * @param        number            the object number.
+         */
+    
+        internal PdfIndirectReference(int type, int number) : this(type, number, 0) {}
+    
+        // methods
+    
+        /**
+         * Returns the number of the object.
+         *
+         * @return        a number.
+         */
+    
+        public int Number {
+            get {
+                return number;
+            }
+        }
+    
+        /**
+         * Returns the generation of the object.
+         *
+         * @return        a number.
+         */
+    
+        public int Generation {
+            get {
+                return generation;
+            }
+        }
+
+        public override String ToString() {
+    	    return new StringBuilder().Append(number).Append(' ').Append(generation).Append(" R").ToString();
+        }
+    }
+}