diff --git a/src/com/webcodepro/applecommander/storage/HexDumpFileFilter.java b/src/com/webcodepro/applecommander/storage/HexDumpFileFilter.java new file mode 100644 index 0000000..c1bab95 --- /dev/null +++ b/src/com/webcodepro/applecommander/storage/HexDumpFileFilter.java @@ -0,0 +1,110 @@ +/* + * AppleCommander - An Apple ][ image utility. + * Copyright (C) 2002-2003 by Robert Greene + * robgreene at users.sourceforge.net + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program 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 General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +package com.webcodepro.applecommander.storage; + +import java.io.ByteArrayOutputStream; +import java.io.PrintWriter; + +/** + * Filter the given file data to be the appropriate length. + *
+ * Date created: Nov 2, 2002 9:07:52 PM
+ * @author: Rob Greene
+ */
+public class HexDumpFileFilter implements FileFilter {
+ /**
+ * This is the number of bytes to display per line.
+ */
+ private static final int BYTES_PER_LINE = 16;
+ /**
+ * This is the ASCII space character as used by the Apple ][.
+ * The high bit is off.
+ */
+ private static final int APPLE_SPACE = 0x20;
+
+ /**
+ * Constructor for BinaryFileFilter.
+ */
+ public HexDumpFileFilter() {
+ super();
+ }
+
+ /**
+ * Create the hex dump format. This is in the general form of:
+ * MMMMMM: HH HH HH HH HH HH HH HH HH HH HH HH HH HH HH HH AAAAAAAA AAAAAAAA
+ * Where MMMMMM = memory address, HH = hex byte, and
+ * A = ASCII character.
+ * @see com.webcodepro.applecommander.storage.FileFilter#filter(byte[])
+ */
+ public byte[] filter(FileEntry fileEntry) {
+ byte[] fileData = fileEntry.getFileData();
+ ByteArrayOutputStream output = new ByteArrayOutputStream();
+ PrintWriter printer = new PrintWriter(output);
+ printer.print(" Offset ");
+ printer.print("Hex Data ");
+ printer.println("Characters");
+ printer.print("======= ");
+ printer.print("================================================ ");
+ printer.println("=================");
+ for (int offset=0; offset