From aedc34d55462a75e329bbf342251ff6504cd117e Mon Sep 17 00:00:00 2001
From: Benjamin Culkin <scorpress@gmail.com>
Date: Sun, 19 May 2024 17:56:33 -0400
Subject: Initial import from SVN

---
 .../net/wotonomy/foundation/NSMutableData.java     | 167 +++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSMutableData.java

(limited to 'projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSMutableData.java')

diff --git a/projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSMutableData.java b/projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSMutableData.java
new file mode 100644
index 0000000..c677ea7
--- /dev/null
+++ b/projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSMutableData.java
@@ -0,0 +1,167 @@
+/*
+Wotonomy: OpenStep design patterns for pure Java applications.
+Copyright (C) 2000 Blacksmith, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, see http://www.gnu.org
+*/
+
+package net.wotonomy.foundation;
+
+/**
+* A pure java implementation of NSMutableData, which
+* is basically an editable wrapper for a byte array.
+*
+* @author michael@mpowers.net
+* @author $Author: cgruber $
+* @version $Revision: 892 $
+*/
+public class NSMutableData
+    extends NSData
+{
+    /**
+    * Default constructor creates a zero-data object.
+    */
+    public NSMutableData ()
+    {
+    	super();
+    }
+
+    /**
+    * Creates an object containing the contents of the specified URL.
+    */
+    public NSMutableData (java.net.URL aURL)
+    {
+    	super( aURL );
+    }
+
+    /**
+    * Creates an object containing a copy of the contents of the 
+    * specified NSData object.
+    */
+    public NSMutableData (NSData aData)
+    {
+    	super( aData );
+    }
+
+    /**
+    * Creates an object containing the specified number of bytes
+    * initialized to all zeroes.
+    */
+    public NSMutableData (int size)
+    {
+		super( new byte[size] ); // inits to zeroes
+    }
+
+
+	/**
+	* Sets the length of the data to the specified length.
+	* If shorter, the data is truncated.  If longer, the extra
+	* bytes are initialized to zeroes.
+	*/
+    public void setLength (int length)
+    {
+    	byte[] data = new byte[ length ]; // inits to zeroes
+    	int limit = length;
+    	if (limit > bytes.length)
+    		limit = bytes.length;
+	    for ( int i = 0; i < limit; i++ )
+	    {
+	    	data[i] = this.bytes[ i ];
+	    }
+	    this.bytes = data;
+    }
+
+	/**
+	* Appends the specified data to the end of this data.
+	*/
+    public void appendData (NSData aData)
+    {
+    	int len = aData.length(); 
+    	byte[] data = new byte[ bytes.length + len ];
+
+	    int i;
+	    for ( i = 0; i < bytes.length; i++ )
+	    {
+	    	data[i] = bytes[i];
+	    }
+
+	    byte[] src = aData.bytes( 0, len );
+	    for ( int j = 0; j < len; j++ )
+	    {
+	    	data[i+j] = src[j];
+	    }
+
+	    bytes = data;
+    }
+
+	public void appendByte(byte b) {
+		setLength(bytes.length + 1);
+		bytes[bytes.length-1] = b;
+	}
+
+	public void appendBytes(byte[] b) {
+		int origLen = bytes.length;
+		setLength(origLen + b.length);
+		for (int i = 0; i < b.length; i++)
+			bytes[i + origLen] = b[i];
+	}
+
+	/**
+	* Increases the size of the byte array by the specified amount.
+	*/
+    public void increaseLengthBy (int increment)
+    {
+    	setLength( length() + increment );
+    }
+
+	/**
+	* Sets the bytes in the array within the specified range to zero.
+	*/
+    public void resetBytesInRange (NSRange aRange)
+    {
+    	int loc = aRange.location();
+	    int max = aRange.maxRange();
+	    for ( int i = loc; i < max; i++ )
+	    {
+	    	bytes[i] = 0;
+	    }
+    }
+
+	/**
+	* Copies the data in the specified object to this object,
+	* completely replacing the previous contents.
+	*/
+    public void setData (NSData aData)
+    {
+		bytes = aData.bytes( 0, aData.length() );
+    }
+}
+
+/*
+ * $Log$
+ * Revision 1.1  2006/02/16 12:47:16  cgruber
+ * Check in all sources in eclipse-friendly maven-enabled packages.
+ *
+ * Revision 1.2  2003/08/06 23:57:13  chochos
+ * appendByte(), appendBytes()
+ *
+ * Revision 1.1.1.1  2000/12/21 15:47:34  mpowers
+ * Contributing wotonomy.
+ *
+ * Revision 1.3  2000/12/20 16:25:38  michael
+ * Added log to all files.
+ *
+ *
+ */
+
-- 
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