From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001
From: tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Fri, 1 Dec 2006 12:20:24 +0000
Subject: Initial import of release 2.2.

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../org/pdfbox/pdmodel/common/PDObjectStream.java  | 151 +++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 src/main/java/org/pdfbox/pdmodel/common/PDObjectStream.java

(limited to 'src/main/java/org/pdfbox/pdmodel/common/PDObjectStream.java')

diff --git a/src/main/java/org/pdfbox/pdmodel/common/PDObjectStream.java b/src/main/java/org/pdfbox/pdmodel/common/PDObjectStream.java
new file mode 100644
index 0000000..3d31c1a
--- /dev/null
+++ b/src/main/java/org/pdfbox/pdmodel/common/PDObjectStream.java
@@ -0,0 +1,151 @@
+/**
+ * Copyright (c) 2004-2005, www.pdfbox.org
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of pdfbox; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://www.pdfbox.org
+ *
+ */
+package org.pdfbox.pdmodel.common;
+
+import org.pdfbox.cos.COSStream;
+
+import org.pdfbox.pdmodel.PDDocument;
+
+
+
+/**
+ * A PDStream represents a stream in a PDF document.  Streams are tied to a single
+ * PDF document.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.2 $
+ */
+public class PDObjectStream extends PDStream
+{
+
+    /**
+     * Constructor.
+     *
+     * @param str The stream parameter.
+     */
+    public PDObjectStream( COSStream str )
+    {
+        super( str );
+    }
+    
+    /**
+     * This will create a new PDStream object.
+     * 
+     * @param document The document that the stream will be part of.
+     * @return A new stream object.
+     */
+    public static PDObjectStream createStream( PDDocument document )
+    {
+        COSStream cosStream = new COSStream( document.getDocument().getScratchFile() );
+        PDObjectStream strm = new PDObjectStream( cosStream );
+        strm.getStream().setName( "Type", "ObjStm" );
+        return strm;
+    }
+    
+    /**
+     * Get the type of this object, should always return "ObjStm".
+     * 
+     * @return The type of this object.
+     */
+    public String getType()
+    {
+        return getStream().getNameAsString( "Type" );
+    }
+    
+    /**
+     * Get the number of compressed object.
+     * 
+     * @return The number of compressed objects.
+     */
+    public int getNumberOfObjects()
+    {
+        return getStream().getInt( "N", 0 );
+    }
+    
+    /**
+     * Set the number of objects.
+     * 
+     * @param n The new number of objects.
+     */
+    public void setNumberOfObjects( int n )
+    {
+        getStream().setInt( "N", n );
+    }
+    
+    /**
+     * The byte offset (in the decoded stream) of the first compressed object.
+     * 
+     * @return The byte offset to the first object.
+     */
+    public int getFirstByteOffset()
+    {
+        return getStream().getInt( "First", 0 );
+    }
+    
+    /**
+     * The byte offset (in the decoded stream) of the first compressed object.
+     * 
+     * @param n The byte offset to the first object.
+     */
+    public void setFirstByteOffset( int n )
+    {
+        getStream().setInt( "First", n );
+    }
+    
+    /**
+     * A reference to an object stream, of which the current object stream is 
+     * considered an extension.
+     * 
+     * @return The object that this stream is an extension.
+     */
+    public PDObjectStream getExtends()
+    {
+        PDObjectStream retval = null;
+        COSStream stream = (COSStream)getStream().getDictionaryObject( "Extends" );
+        if( stream != null )
+        {
+            retval = new PDObjectStream( stream );
+        }
+        return retval;
+        
+    }
+    
+    /**
+     * A reference to an object stream, of which the current object stream is
+     * considered an extension.
+     * 
+     * @param stream The object stream extension.
+     */
+    public void setExtends( PDObjectStream stream )
+    {
+        getStream().setItem( "Extends", stream );
+    }
+}
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