tidying

Add some new equates

.gitignore

@@ -1,4 +0,0 @@
-/bin/
-.project
-.classpath
-build.xml

README.md

@@ -1,5 +1,6 @@
 # Apple II Disk Browser
-
+### Alternative
+There is a new release of [DiskBrowser2](https://github.com/dmolony/diskbrowser2) available.
 ### Features
 - Cross-platform (Windows, MacOS, Linux)
 - Disk formats
@@ -30,7 +31,7 @@
 * [Usage](resources/usage.md)
 
 ### Installation
-* Install the **latest** version of the [JDK](http://www.oracle.com/technetwork/java/javase/downloads/index.html).
+* Install the **latest** version of the [JDK](https://www.oracle.com/java/technologies/downloads/).
 * Download DiskBrowser.jar from the [releases](https://github.com/dmolony/diskbrowser/releases) page.
 * Double-click the jar file, or enter 'java -jar DiskBrowser.jar' in the terminal.
 * Set your root folder (the top-level folder where you keep your disk images).
@@ -52,14 +53,24 @@ Java runs on Windows, MacOS and Linux.
 #### Graphics 
 ![Graphics](resources/graphics.png?raw=true "Graphics")
 #### Applesoft Formatting and Analysis
+Applesoft programs are displayed in a modern, easily-readable format. A comprehensive cross-listing of variables, strings, calls and jumps is available. Easily find duplicate variable names.
+For the truly retro look, programs can be displayed in the [original 40-column line wrap](resources/basic.md) mode.
 ![Applesoft](resources/basic.png?raw=true "Applesoft")
 #### Pascal code
-![Pascal](resources/pascal.png?raw=true "Pascal")
+![Pascal](resources/pascal1.png?raw=true "Pascal text")
+![Pascal](resources/pascal2.png?raw=true "Pascal internals")
 #### Infocom
 ![Infocom](resources/zork.png?raw=true "Infocom")
 #### Wizardry
+Wizardry scenarios 1 to 3 are reasonably complete, Wizardry IV and V are partially done. For a dedicated Wizardry application see [WizardryApp](https://github.com/dmolony/WizardryApp).
 ![Wizardry](resources/wizardry.png?raw=true "Wizardry")
+Scenarios 4 and 5 come on multiple disks, and they need to be named so that the only difference between disk names is the identifier before the '.dsk' suffix.
+![Wizardry](resources/wizardry4.png?raw=true "Wizardry IV")
 #### Visicalc
+DiskBrowser has an inbuilt Visicalc processor which will evaluate the sheet and display the results.
 ![Visicalc](resources/visicalc.png?raw=true "Visicalc")
 #### Complete Disk List
+Generates a list of all the disks in your collection. The list can be sorted by any of the table headings. Checksums can be generated as needed, or for the whole collection.
 ![Disk List](resources/disklist.png?raw=true "Disk List")
+Select a disk and click the duplicates button to see all of the disks that share the same checksum.
+![Duplicates](resources/duplicates.png?raw=true "Duplicates")

build.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project name="DiskBrowser" default="jar" basedir=".">
+
+  <property name="srcDir" location="src" />
+  <property name="binDir" location="bin" />
+  <property name="jarDir" location="${user.home}/Dropbox/Java" />
+  <property name="jarFile" location="${jarDir}/DiskBrowser.jar" />
+
+  <target name="version">
+    <echo>DiskBrowser.jar</echo>
+    <echo>${ant.version}</echo>
+    <echo>Java/JVM version: ${ant.java.version}</echo>
+    <echo>Java/JVM detail version: ${java.version}</echo>
+  </target>
+
+  <target name="init" depends="version">
+    <delete file="${binDir}/*.class" />
+    <delete file="${jarFile}" />
+  </target>
+
+  <target name="compile" depends="init">
+    <javac debug="on" srcdir="${srcDir}" destdir="${binDir}" includeantruntime="false">
+      <classpath>
+        <pathelement location="." />
+      </classpath>
+    </javac>
+  </target>
+
+  <target name="jar" depends="compile">
+    <jar destfile="${jarFile}">
+      <fileset dir="${binDir}" />
+      <zipfileset src="${jarDir}/InputPanel.jar" />
+      <manifest>
+        <attribute name="Main-Class" value="com.bytezone.diskbrowser.gui.DiskBrowser" />
+      </manifest>
+    </jar>
+  </target>
+
+</project>

resources/basic.md

@@ -0,0 +1,13 @@
+### Applesoft program listing
+
+#### State of the art circa 1980
+<img src="basic0.png" alt="terrible" width="700"/>
+
+#### Original (using Print Char 21)
+<img src="basic5.png" alt="truly awful" width="400"/>
+
+#### No formatting
+<img src="basic2.png" alt="better" width="850"/>
+
+#### Formatted
+<img src="basic3.png" alt="best" width="550"/>

src/com/bytezone/diskbrowser/applefile/AbstractFile.java

@@ -17,9 +17,9 @@ public abstract class AbstractFile implements DataSource
 
   protected String name;
   public byte[] buffer;
-  protected AssemblerProgram assembler;
+  AssemblerProgram assembler;
   protected BufferedImage image;
-  protected int loadAddress;
+  int loadAddress;
   ResourceFork resourceFork;
 
   // ---------------------------------------------------------------------------------//
@@ -30,12 +30,29 @@ public abstract class AbstractFile implements DataSource
     this.buffer = buffer;
   }
 
+  // ---------------------------------------------------------------------------------//
+  public void setName (String name)
+  // ---------------------------------------------------------------------------------//
+  {
+    this.name = name;       // Infocom ZObject uses this - but it sucks 
+  }
+
   // ---------------------------------------------------------------------------------//
   @Override
   public String getText ()      // Override this to get a tailored text representation
   // ---------------------------------------------------------------------------------//
   {
-    return "Name : " + name + "\n\nNo text description";
+    StringBuilder text = new StringBuilder ();
+
+    text.append ("Name : " + name + "\n\nNo text description");
+
+    if (resourceFork != null)
+    {
+      text.append ("\n\nResource Fork:\n\n");
+      text.append (resourceFork);
+    }
+
+    return text.toString ();
   }
 
   // ---------------------------------------------------------------------------------//

src/com/bytezone/diskbrowser/applefile/ApplesoftBasicProgram.java

@@ -10,7 +10,7 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
 // -----------------------------------------------------------------------------------//
 {
   private final List<SourceLine> sourceLines = new ArrayList<> ();
-  private int ptr;          // end-of-program marker
+  private int ptr = 0;          // end-of-program marker
 
   private final UserBasicFormatter userBasicFormatter;
   private final AppleBasicFormatter appleBasicFormatter;
@@ -78,13 +78,6 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
     return sourceLines;
   }
 
-  // ---------------------------------------------------------------------------------//
-  //  byte[] getBuffer ()
-  //  // ---------------------------------------------------------------------------------//
-  //  {
-  //    return buffer;
-  //  }
-
   // ---------------------------------------------------------------------------------//
   int getEndPtr ()
   // ---------------------------------------------------------------------------------//

src/com/bytezone/diskbrowser/applefile/BasicTextFile.java

@@ -8,8 +8,8 @@ import com.bytezone.diskbrowser.utilities.HexFormatter;
 public class BasicTextFile extends TextFile
 // -----------------------------------------------------------------------------------//
 {
-  private static String underline = "------------------------------------------"
-      + "------------------------------------\n";
+  private static String underline =
+      "------------------------------------------" + "------------------------------------\n";
   private static String fullUnderline = "----------  -------  " + underline;
   private int recordLength;                   // prodos aux
   private List<TextBuffer> buffers;           // only used if it is a Prodos text file
@@ -30,6 +30,7 @@ public class BasicTextFile extends TextFile
     super (name, buffer);
 
     this.eof = eof;
+
     recordLength = auxType;
     prodosFile = true;
   }
@@ -42,6 +43,7 @@ public class BasicTextFile extends TextFile
 
     this.buffers = buffers;
     this.eof = eof;
+
     recordLength = auxType;
     prodosFile = true;
   }
@@ -167,8 +169,7 @@ public class BasicTextFile extends TextFile
       if (textPreferences.showTextOffsets)
       {
         line = line.replaceAll ("\\n", "\n                     ");
-        text.append (
-            String.format ("%,10d %,8d  %s%n", recNo * recordLength, recNo, line));
+        text.append (String.format ("%,10d %,8d  %s%n", recNo * recordLength, recNo, line));
       }
       else
         text.append (String.format ("%s%n", line));

src/com/bytezone/diskbrowser/applefile/CPMBasicFile.java

@@ -0,0 +1,229 @@
+package com.bytezone.diskbrowser.applefile;
+
+import static com.bytezone.diskbrowser.utilities.Utility.getShort;
+
+import com.bytezone.diskbrowser.utilities.HexFormatter;
+import com.bytezone.diskbrowser.utilities.Utility;
+
+// -----------------------------------------------------------------------------------//
+public class CPMBasicFile extends BasicProgram
+// -----------------------------------------------------------------------------------//
+{
+  String[] tokens = { //
+      "", "END", "FOR", "NEXT", "DATA", "INPUT", "DIM", "READ",           // 0x80
+      "LET", "GOTO", "RUN", "IF", "RESTORE", "GOSUB", "RETURN", "REM",    // 0x88
+      "STOP", "PRINT", "CLEAR", "LIST", "NEW", "ON", "DEF", "POKE",       // 0x90
+      "", "", "", "LPRINT", "LLIST", "WIDTH", "ELSE", "",                 // 0x98
+      "", "SWAP", "ERASE", "", "ERROR", "RESUME", "DELETE", "",           // 0xA0
+      "RENUM", "DEFSTR", "DEFINT", "", "DEFDBL", "LINE", "", "WHILE",     // 0xA8
+      "WEND", "CALL", "WRITE", "COMMON", "CHAIN",                         // 0xB0
+      "OPTION", "RANDOMIZE", "SYSTEM",                                    // 0xB5
+      "OPEN", "FIELD", "GET", "PUT", "CLOSE", "LOAD", "MERGE", "",        // 0xB8
+      "NAME", "KILL", "LSET", "RSET", "SAVE", "RESET", "TEXT", "HOME",    // 0xC0
+      "VTAB", "HTAB", "INVERSE", "NORMAL", "", "", "", "",                // 0xC8
+      "", "", "", "", "", "WAIT", "", "",                                 // 0xD0
+      "", "", "", "", "", "TO", "THEN", "TAB(",                           // 0xD8
+      "STEP", "USR", "FN", "SPC(", "", "ERL", "ERR", "STRING$",           // 0xE0
+      "USING", "INSTR", "'", "VARPTR", "", "", "INKEY$", ">",             // 0xE8
+      "=", "<", "+", "-", "*", "/", "", "AND",                            // 0xF0
+      "OR", "", "", "", "MOD", "/", "", "",                               // 0xF8
+  };
+
+  String[] functions = { //
+      "", "LEFT$", "RIGHT$", "MID$", "SGN", "INT", "ABS", "SQR",          // 0x80
+      "RND", "SIN", "LOG", "EXP", "COS", "TAN", "ATN", "FRE",             // 0x88
+      "POS", "LEN", "STR$", "VAL", "ASC", "CHR$", "PEEK", "SPACE$",       // 0x90
+      "OCT$", "HEX$", "LPOS", "CINT", "CSNG", "CDBL", "FIX", "",          // 0x98
+      "", "", "", "", "", "", "", "",                                     // 0xA0
+      "", "", "CVI", "CVS", "CVD", "", "EOF", "LOC",                      // 0xA8
+      "", "MKI$", "MKS$", "MKD$",                                         // 0xB0
+  };
+
+  // ---------------------------------------------------------------------------------//
+  public CPMBasicFile (String name, byte[] buffer)
+  // ---------------------------------------------------------------------------------//
+  {
+    super (name, buffer);
+  }
+
+  // ---------------------------------------------------------------------------------//
+  @Override
+  public String getText ()
+  // ---------------------------------------------------------------------------------//
+  {
+    StringBuilder text = new StringBuilder ();
+
+    if (basicPreferences.showHeader)
+      text.append ("Name : " + name + "\n\n");
+
+    int ptr = 5;
+    while (buffer[ptr] != 0)
+      ptr++;
+
+    if (showDebugText)
+      return debugText ();
+
+    ptr = 1;
+    while (ptr < buffer.length)
+    {
+      int nextAddress = getShort (buffer, ptr);
+
+      if (nextAddress == 0)
+        break;
+
+      int lineNumber = getShort (buffer, ptr + 2);
+
+      text.append (String.format (" %d ", lineNumber));
+      ptr += 4;
+
+      while (true)
+      {
+        int val = buffer[ptr++] & 0xFF;
+
+        if (val == 0)
+          break;
+
+        if ((val & 0x80) != 0)
+        {
+          if (val == 0xFF)
+          {
+            val = buffer[ptr++] & 0xFF;
+            String token = functions[val & 0x7F];
+            if (token.length () == 0)
+              token = String.format ("<FF %02X>", val);
+            text.append (token);
+          }
+          else
+          {
+            String token = tokens[val & 0x7F];
+            if (token.length () == 0)
+              token = String.format ("<%02X>", val);
+            text.append (token);
+          }
+          continue;
+        }
+
+        if (val >= 0x20 && val <= 0x7E)              // printable
+        {
+          // check for stupid apostrophe comment
+          if (val == 0x3A && ptr + 1 < buffer.length && buffer[ptr] == (byte) 0x8F
+              && buffer[ptr + 1] == (byte) 0xEA)
+          {
+            text.append ("'");
+            ptr += 2;
+          }
+          else if (val == 0x3A && ptr < buffer.length && buffer[ptr] == (byte) 0x9E)
+          {
+            // ignore colon before ELSE
+          }
+          else
+            text.append (String.format ("%s", (char) val));
+          continue;
+        }
+
+        if (val >= 0x11 && val <= 0x1A)               // inline numbers
+        {
+          text.append (val - 0x11);
+          continue;
+        }
+
+        switch (val)
+        {
+          case 0x07:
+            text.append ("<BELL>");
+            break;
+
+          case 0x09:
+            text.append ("        ");
+            break;
+
+          case 0x0A:
+            text.append ("\n ");
+            break;
+
+          case 0x0C:
+            text.append ("&H" + String.format ("%X", Utility.getShort (buffer, ptr)));
+            ptr += 2;
+            break;
+
+          case 0x0E:                                // same as 0x1C ??
+            text.append (Utility.getShort (buffer, ptr));
+            ptr += 2;
+            break;
+
+          case 0x0F:
+            text.append (buffer[ptr++] & 0xFF);
+            break;
+
+          case 0x1C:                                // same as 0x0E ??
+            text.append (Utility.getShort (buffer, ptr));
+            ptr += 2;
+            break;
+
+          case 0x1D:
+            String d4 = Utility.floatValueMS4 (buffer, ptr) + "";
+            if (d4.endsWith (".0"))
+              d4 = d4.substring (0, d4.length () - 2);
+            text.append (d4 + "!");
+            ptr += 4;
+            break;
+
+          case 0x1F:
+            String d8 = Utility.floatValueMS8 (buffer, ptr) + "";
+            if (d8.endsWith (".0"))
+              d8 = d8.substring (0, d8.length () - 2);
+            text.append (d8 + "#");
+            ptr += 8;
+            break;
+
+          default:
+            text.append (String.format ("<%02X>", val));
+        }
+      }
+
+      text.append ("\n");
+    }
+
+    return Utility.rtrim (text);
+  }
+
+  // ---------------------------------------------------------------------------------//
+  private String debugText ()
+  // ---------------------------------------------------------------------------------//
+  {
+    StringBuilder text = new StringBuilder ();
+
+    int ptr = 1;
+    int lastPtr;
+
+    while (ptr < buffer.length)
+    {
+      int nextAddress = getShort (buffer, ptr);
+      if (nextAddress == 0)
+        break;
+
+      int lineNumber = getShort (buffer, ptr + 2);
+      lastPtr = ptr;
+
+      ptr += 4;
+
+      int val;
+      while ((val = buffer[ptr++]) != 0)
+      {
+        ptr += switch (val)
+        {
+          case 0x0C, 0x0E, 0x1C -> 2;   // 2 byte numeric
+          case 0x1D -> 4;               // 4 byte single precision
+          case 0x1F -> 8;               // 8 byte double precision
+          case 0x0F, 0xFF -> 1;         // 1 byte numeric, function table entry
+          default -> 0;
+        };
+      }
+
+      text.append (String.format (" %d  %s%n", lineNumber,
+          HexFormatter.getHexString (buffer, lastPtr + 4, ptr - lastPtr - 4)));
+    }
+
+    return Utility.rtrim (text);
+  }
+}

src/com/bytezone/diskbrowser/applefile/CPMTextFile.java

@@ -26,7 +26,10 @@ public class CPMTextFile extends TextFile
     {
       String line = getLine (ptr);
       text.append (line + "\n");
-      ptr += line.length () + 2;
+      ptr += line.length () + 1;
+      if (ptr < buffer.length && buffer[ptr - 1] == 0x0D && buffer[ptr] == 0x0A)
+        ++ptr;
+
       while (ptr < buffer.length && buffer[ptr] == 0)
         ++ptr;
     }
@@ -43,8 +46,8 @@ public class CPMTextFile extends TextFile
   {
     StringBuilder line = new StringBuilder ();
 
-    int max = buffer.length - 1;
-    while (ptr < max && buffer[ptr] != 0x0D && buffer[ptr + 1] != 0x0A)
+//    int max = buffer.length - 1;
+    while (ptr < buffer.length && buffer[ptr] != 0x0D && buffer[ptr] != 0x0A)
       line.append ((char) (buffer[ptr++] & 0x7F));
 
     return line.toString ();

src/com/bytezone/diskbrowser/applefile/DefaultAppleFile.java

@@ -18,6 +18,7 @@ public class DefaultAppleFile extends AbstractFile
   // ---------------------------------------------------------------------------------//
   {
     super (name, buffer);
+
     this.text = "Name : " + name + "\n\n" + text;
   }
 
@@ -35,8 +36,10 @@ public class DefaultAppleFile extends AbstractFile
   {
     if (text != null)
       return text;
+
     if (buffer == null)
       return "Invalid file : " + name;
+
     return super.getText ();
   }
 }

src/com/bytezone/diskbrowser/applefile/HiResImage.java

@@ -18,98 +18,101 @@ public abstract class HiResImage extends AbstractFile
 {
   static final String[] auxTypes =
       { "Paintworks Packed SHR Image", "Packed Super Hi-Res Image",
-        "Super Hi-Res Image (Apple Preferred Format)", "Packed QuickDraw II PICT File",
-        "Packed Super Hi-Res 3200 color image" };
+          "Super Hi-Res Image (Apple Preferred Format)", "Packed QuickDraw II PICT File",
+          "Packed Super Hi-Res 3200 color image", "DreamGraphix" };
+
   static final int COLOR_TABLE_SIZE = 32;
   static final int COLOR_TABLE_OFFSET_AUX_0 = 32_256;
   static final int COLOR_TABLE_OFFSET_AUX_2 = 32_000;
   public static final int FADDEN_AUX = 0x8066;
+
   private byte[] fourBuf = new byte[4];
   private ColorTable defaultColorTable320 = new ColorTable (0, 0x00);
   private ColorTable defaultColorTable640 = new ColorTable (0, 0x80);
 
-  //  ---- ---- ------  --------------------------------------  ------------------------
-  //  File Type  Aux    Name                                    Description
-  //  ---- ---- ------  --------------------------------------  ------------------------
-  //   $06 BIN                 isGif()                          OriginalHiResImage
-  //   $06 BIN                 isPng()                          OriginalHiResImage
-  //   $06 BIN          .BMP   isBmp()                          OriginalHiResImage
-  //   $06 BIN          .AUX                                    DoubleHiResImage
-  //   $06 BIN          .PAC                                    DoubleHiResImage
-  //   $06 BIN          .A2FC                                   DoubleHiResImage
-  //   $06 BIN   $2000  eof $4000                               DoubleHiResImage
-  //   $06 BIN   $1FFF  eof $1FF8/$1FFF/$2000/$4000             OriginalHiResImage
-  //   $06 BIN   $2000  eof $1FF8/$1FFF/$2000/$4000             OriginalHiResImage
-  //   $06 BIN   $4000  eof $1FF8/$1FFF/$2000/$4000             OriginalHiResImage (?)
-  //   $06 BIN   $4000  eof $4000                               DoubleHiResImage   (?)
-  //   $06 BIN          .3200                                   SHRPictureFile2
-  //   $06 BIN          .3201                                   SHRPictureFile2 packed
-  //  ---- ---- ------  --------------------------------------  ------------------------
-  //   $08 FOT  <$4000  Apple II Graphics File                  OriginalHiResImage
-  //   $08 FOT   $4000  Packed Hi-Res file                            ???
-  //   $08 FOT   $4001  Packed Double Hi-Res file                     ???
-  //   $08 FOT   $8066  Fadden Hi-res                           FaddenHiResImage
-  //  ---- ---- ------  --------------------------------------  ------------------------
-  // * $C0 PNT   $0000  Paintworks Packed Super Hi-Res          SHRPictureFile2
-  // * $C0 PNT   $0001  Packed IIGS Super Hi-Res Image          SHRPictureFile2
-  // * $C0 PNT   $0002  IIGS Super Hi-Res Picture File (APF)    SHRPictureFile1
-  //   $C0 PNT   $0003  Packed IIGS QuickDraw II PICT File      SHRPictureFile2 *
-  // * $C0 PNT   $0004  Packed Super Hi-Res 3200 (Brooks)       SHRPictureFile2 .3201
-  //   $C0 PNT   $1000
-  //   $C0 PNT   $8000  Drawplus? Paintworks Gold?
-  //   $C0 PNT   $8001  GTv background picture
-  //   $C0 PNT   $8005  DreamGraphix document
-  //   $C0 PNT   $8006  GIF
-  //  ---- ---- ------  --------------------------------------  ------------------------
-  // * $C1 PIC   $0000  IIGS Super Hi-Res Image                 SHRPictureFile2
-  //   $C1 PIC   $0001  IIGS QuickDraw II PICT File             SHRPictureFile2 *
-  // * $C1 PIC   $0002  Super Hi-Res 3200 (Brooks)              SHRPictureFile2 .3200
-  //   $C1 PIC   $2000  = $C1/0000
-  //   $C1 PIC   $4100  = $C1/0000
-  //   $C1 PIC   $4950  = $C1/0000
-  //   $C1 PIC   $8001  Allison raw image
-  //   $C1 PIC   $8002  Thunderscan
-  //   $C1 PIC   $8003  DreamGraphix
-  //  ---- ---- ------  --------------------------------------  ------------------------
-  //   $C2 ANI          Paintworks animation
-  //   $C3 PAL          Paintworks palette
-  //  ---- ---- ------  --------------------------------------  ------------------------
+  // ---- ---- ------ -------------------------------------- ------------------------
+  // File Type Aux Name Description
+  // ---- ---- ------ -------------------------------------- ------------------------
+  // $06 BIN isGif() OriginalHiResImage
+  // $06 BIN isPng() OriginalHiResImage
+  // $06 BIN .BMP isBmp() OriginalHiResImage
+  // $06 BIN .AUX DoubleHiResImage
+  // $06 BIN .PAC DoubleHiResImage
+  // $06 BIN .A2FC DoubleHiResImage
+  // $06 BIN $2000 eof $4000 DoubleHiResImage
+  // $06 BIN $1FFF eof $1FF8/$1FFF/$2000/$4000 OriginalHiResImage
+  // $06 BIN $2000 eof $1FF8/$1FFF/$2000/$4000 OriginalHiResImage
+  // $06 BIN $4000 eof $1FF8/$1FFF/$2000/$4000 OriginalHiResImage (?)
+  // $06 BIN $4000 eof $4000 DoubleHiResImage (?)
+  // $06 BIN .3200 SHRPictureFile2
+  // $06 BIN .3201 SHRPictureFile2 packed
+  // ---- ---- ------ -------------------------------------- ------------------------
+  // $08 FOT <$4000 Apple II Graphics File OriginalHiResImage
+  // $08 FOT $4000 Packed Hi-Res file ???
+  // $08 FOT $4001 Packed Double Hi-Res file ???
+  // $08 FOT $8066 Fadden Hi-res FaddenHiResImage
+  // ---- ---- ------ -------------------------------------- ------------------------
+  // * $C0 PNT $0000 Paintworks Packed Super Hi-Res SHRPictureFile2
+  // * $C0 PNT $0001 Packed IIGS Super Hi-Res Image SHRPictureFile2
+  // * $C0 PNT $0002 IIGS Super Hi-Res Picture File (APF) SHRPictureFile1
+  // $C0 PNT $0003 Packed IIGS QuickDraw II PICT File SHRPictureFile2 *
+  // * $C0 PNT $0004 Packed Super Hi-Res 3200 (Brooks) SHRPictureFile2 .3201
+  // $C0 PNT $1000
+  // $C0 PNT $8000 Drawplus? Paintworks Gold?
+  // $C0 PNT $8001 GTv background picture
+  // $C0 PNT $8005 DreamGraphix document SHRPictureFile2
+  // $C0 PNT $8006 GIF
+  // ---- ---- ------ -------------------------------------- ------------------------
+  // * $C1 PIC $0000 IIGS Super Hi-Res Image SHRPictureFile2
+  // $C1 PIC $0001 IIGS QuickDraw II PICT File SHRPictureFile2 *
+  // * $C1 PIC $0002 Super Hi-Res 3200 (Brooks) SHRPictureFile2 .3200
+  // $C1 PIC $2000 = $C1/0000
+  // $C1 PIC $4100 = $C1/0000
+  // $C1 PIC $4950 = $C1/0000
+  // $C1 PIC $8001 Allison raw image
+  // $C1 PIC $8002 Thunderscan
+  // $C1 PIC $8003 DreamGraphix
+  // ---- ---- ------ -------------------------------------- ------------------------
+  // $C2 ANI Paintworks animation
+  // $C3 PAL Paintworks palette
+  // ---- ---- ------ -------------------------------------- ------------------------
 
-  // packed      unpacked
-  // $06.3200                  1
-  // $06.3201                  .
-  // $08 0000                  .
-  // $08 4000                  .
-  // $08 4001                  .
-  // $08 8066                  3
-  // $C0 0000                  1
-  // $C0 0001    $C1 0000      2     1
-  // $C0 0002                  1,5
-  // $C0 0003    $C1 0001      .     .
-  // $C0 0004    $C1 0002      .     1
-  // $C0 1000                  .
-  // $C0 8000                  .
-  // $C0 8001                  .
-  // $C0 8005                  .
-  // $C0 8006                  .
-  // $C1 0042                  4
-  // $C1 0043                  4
-  // $C1 2000                  .
-  // $C1 4100                  1
-  // $C1 4950                  .
-  // $C1 8001                  .
-  // $C1 8002                  .
-  // $C1 8003                  .
+  // packed unpacked
+  // $06.3200 1
+  // $06.3201 .
+  // $08 0000 .
+  // $08 4000 .
+  // $08 4001 .
+  // $08 8066 3
+  // $C0 0000 1
+  // $C0 0001 $C1 0000 2 1
+  // $C0 0002 1,5
+  // $C0 0003 $C1 0001 . .
+  // $C0 0004 $C1 0002 . 1
+  // $C0 1000 .
+  // $C0 8000 .
+  // $C0 8001 .
+  // $C0 8005 6
+  // $C0 8006 .
+  // $C1 0042 4
+  // $C1 0043 4
+  // $C1 2000 .
+  // $C1 4100 1
+  // $C1 4950 .
+  // $C1 8001 .
+  // $C1 8002 .
+  // $C1 8003 .
 
   // 1 Graphics & Animation.2mg
   // 2 0603 Katie's Farm - Disk 2.po
   // 3 CompressedSlides.do
   // 4 System Addons.hdv
   // 5 gfx.po
-  //
+  // 6 Dream Grafix v1.02.po
 
   // see also - https://docs.google.com/spreadsheets/d
-  //           /1rKR6A_bVniSCtIP_rrv8QLWJdj4h6jEU1jJj0AebWwg/edit#gid=0
+  // . /1rKR6A_bVniSCtIP_rrv8QLWJdj4h6jEU1jJj0AebWwg/edit#gid=0
+  // also - http://lukazi.blogspot.com/2017/03/double-high-resolution-graphics-dhgr.html
 
   static PaletteFactory paletteFactory = new PaletteFactory ();
 
@@ -297,7 +300,10 @@ public abstract class HiResImage extends AbstractFile
         break;
 
       case ProdosConstants.FILE_TYPE_PNT:           // 0xC0
-        auxText = auxType > 4 ? "Unknown aux: " + auxType : auxTypes[auxType];
+        if (auxType == 0x8005)
+          auxText = auxTypes[5];
+        else
+          auxText = auxType > 4 ? "Unknown aux: " + auxType : auxTypes[auxType];
         break;
 
       case ProdosConstants.FILE_TYPE_PIC:           // 0xC1
@@ -495,7 +501,7 @@ public abstract class HiResImage extends AbstractFile
   int calculateBufferSize (byte[] buffer, int ptr)
   // ---------------------------------------------------------------------------------//
   {
-    //    int ptr = 0;
+    // int ptr = 0;
     int size = 0;
     while (ptr < buffer.length)
     {

src/com/bytezone/diskbrowser/applefile/OriginalHiResImage.java

@@ -70,6 +70,8 @@ public class OriginalHiResImage extends HiResImage
             for (int ptr = base; ptr < max; ptr++)
             {
               int value = buffer[ptr] & 0x7F;
+              if ((buffer[ptr] & 0x80) != 0)
+                System.out.printf ("bit shift pixel found in %s%n", name);
               for (int px = 0; px < 7; px++)
               {
                 int val = (value >> px) & 0x01;

src/com/bytezone/diskbrowser/applefile/PascalText.java

@@ -4,6 +4,8 @@ package com.bytezone.diskbrowser.applefile;
 public class PascalText extends TextFile
 // -----------------------------------------------------------------------------------//
 {
+  private final static int PAGE_SIZE = 1024;
+
   // ---------------------------------------------------------------------------------//
   public PascalText (String name, byte[] buffer)
   // ---------------------------------------------------------------------------------//
@@ -16,26 +18,34 @@ public class PascalText extends TextFile
   public String getText ()
   // ---------------------------------------------------------------------------------//
   {
+    // Text files are broken up into 1024-byte pages.
+    //    [DLE] [indent] [text] [CR] ... [nulls]
+
     StringBuilder text = new StringBuilder (getHeader ());
 
-    int ptr = 0x400;
+    int ptr = PAGE_SIZE;                                // skip text editor header
+
     while (ptr < buffer.length)
     {
-      if (buffer[ptr] == 0x00)
+      if (buffer[ptr] == 0x00)                          // padding to page boundary
       {
-        ++ptr;
+        ptr = (ptr / PAGE_SIZE + 1) * PAGE_SIZE;        // skip to next page
         continue;
       }
-      if (buffer[ptr] == 0x10)
+
+      if (buffer[ptr] == 0x10)                          // Data Link Escape code
       {
-        int tab = buffer[ptr + 1] - 0x20;
+        int tab = (buffer[ptr + 1] & 0xFF) - 32;        // indent amaount
         while (tab-- > 0)
           text.append (" ");
         ptr += 2;
       }
-      String line = getLine (ptr);
-      text.append (line + "\n");
-      ptr += line.length () + 1;
+
+      while (buffer[ptr] != 0x0D)
+        text.append ((char) buffer[ptr++]);
+
+      text.append ("\n");
+      ptr++;
     }
 
     if (text.length () > 0)
@@ -43,14 +53,4 @@ public class PascalText extends TextFile
 
     return text.toString ();
   }
-
-  // ---------------------------------------------------------------------------------//
-  private String getLine (int ptr)
-  // ---------------------------------------------------------------------------------//
-  {
-    StringBuilder line = new StringBuilder ();
-    while (buffer[ptr] != 0x0D)
-      line.append ((char) buffer[ptr++]);
-    return line.toString ();
-  }
 }

src/com/bytezone/diskbrowser/applefile/ProdosDirectory.java

@@ -3,6 +3,7 @@ package com.bytezone.diskbrowser.applefile;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.List;
+import java.util.Locale;
 
 import com.bytezone.diskbrowser.disk.FormattedDisk;
 import com.bytezone.diskbrowser.prodos.DirectoryHeader;
@@ -15,7 +16,8 @@ import com.bytezone.diskbrowser.utilities.Utility;
 public class ProdosDirectory extends AbstractFile implements ProdosConstants
 // -----------------------------------------------------------------------------------//
 {
-  static final DateTimeFormatter df = DateTimeFormatter.ofPattern ("d-LLL-yy");
+  private static Locale US = Locale.US;                 // to force 3 character months
+  static final DateTimeFormatter df = DateTimeFormatter.ofPattern ("d-LLL-yy", US);
   static final DateTimeFormatter tf = DateTimeFormatter.ofPattern ("H:mm");
   static final String UNDERLINE =
       "----------------------------------------------------\n";
@@ -86,7 +88,6 @@ public class ProdosDirectory extends AbstractFile implements ProdosConstants
       int nameLength = buffer[i] & 0x0F;
       String filename = HexFormatter.getString (buffer, i + 1, nameLength);
       String subType = "";
-      String locked;
 
       switch (storageType)
       {
@@ -121,12 +122,12 @@ public class ProdosDirectory extends AbstractFile implements ProdosConstants
 
           int eof = Utility.intValue (buffer[i + 21], buffer[i + 22], buffer[i + 23]);
           int fileType = buffer[i + 16] & 0xFF;
-          locked = (buffer[i + 30] & 0xE0) == 0xE0 ? " " : "*";
+          String locked = (buffer[i + 30] & 0xE0) == 0xE0 ? " " : "*";
+          int aux = Utility.getShort (buffer, i + 31);
 
           switch (fileType)
           {
             case FILE_TYPE_TEXT:
-              int aux = Utility.getShort (buffer, i + 31);
               subType = String.format ("R=%5d", aux);
               break;
 
@@ -134,14 +135,13 @@ public class ProdosDirectory extends AbstractFile implements ProdosConstants
             case FILE_TYPE_PNT:
             case FILE_TYPE_PIC:
             case FILE_TYPE_FOT:
-              aux = Utility.getShort (buffer, i + 31);
               subType = String.format ("A=$%4X", aux);
               break;
 
             case FILE_TYPE_AWP:
-              aux = Utility.intValue (buffer[i + 32], buffer[i + 31]);      // backwards!
-              if (aux != 0)
-                filename = convert (filename, aux);
+              int flags = Utility.intValue (buffer[i + 32], buffer[i + 31]);  // aux backwards!
+              if (flags != 0)
+                filename = convert (filename, flags);
               break;
 
             default:
@@ -149,9 +149,10 @@ public class ProdosDirectory extends AbstractFile implements ProdosConstants
           }
 
           String forkFlag = storageType == 5 ? "+" : " ";
-          text.append (String.format ("%s%-15s %3s%s  %5d  %9s %5s  %9s %5s %8d %7s%n",
-              locked, filename, ProdosConstants.fileTypes[type], forkFlag, blocks, dateM,
-              timeM, dateC, timeC, eof, subType));
+          text.append (
+              String.format ("%s%-15s %3s%s  %5d  %9s %5s  %9s %5s %8d %7s    %04X%n",
+                  locked, filename, ProdosConstants.fileTypes[type], forkFlag, blocks,
+                  dateM, timeM, dateC, timeC, eof, subType, aux));
           break;
 
         default:

src/com/bytezone/diskbrowser/applefile/QuickDrawFont.java

@@ -88,8 +88,8 @@ public class QuickDrawFont extends CharacterList
     firstChar = Utility.getShort (buffer, ptr + 2);
     lastChar = Utility.getShort (buffer, ptr + 4);
     widMax = Utility.getShort (buffer, ptr + 6);
-    kernMax = Utility.signedShort (buffer, ptr + 8);
-    nDescent = Utility.signedShort (buffer, ptr + 10);
+    kernMax = Utility.getSignedShort (buffer, ptr + 8);
+    nDescent = Utility.getSignedShort (buffer, ptr + 10);
     fRectWidth = Utility.getShort (buffer, ptr + 12);
     fRectHeight = Utility.getShort (buffer, ptr + 14);
 

src/com/bytezone/diskbrowser/applefile/SHRPictureFile1.java

@@ -141,7 +141,7 @@ public class SHRPictureFile1 extends HiResImage
       int lo = dirEntry.mode & 0x00FF;      // mode bit if hi == 0
 
       boolean fillMode = (dirEntry.mode & 0x20) != 0;
-      //      assert fillMode == false;
+      // assert fillMode == false;
 
       if (hi != 0)
         System.out.println ("hi not zero");
@@ -242,7 +242,8 @@ public class SHRPictureFile1 extends HiResImage
         if (ptr < data.length - 32)
           colorTables[i] = new ColorTable (i, data, ptr);
         else
-          colorTables[i] = new ColorTable (i, 0x00);      // default empty table !! not finished
+          colorTables[i] = new ColorTable (i, 0x00);      // default empty table !! not
+                                                    // finished
         ptr += 32;
       }
     }
@@ -332,11 +333,11 @@ public class SHRPictureFile1 extends HiResImage
       ptr = 0;
       for (int line = 0; line < numScanLines; line++)
       {
-        //        if (isOddAndEmpty (packedScanLines[line]))
-        //        {
-        //          System.out.println ("Odd number of bytes in empty buffer in " + name);
-        //          break;
-        //        }
+        // if (isOddAndEmpty (packedScanLines[line]))
+        // {
+        // System.out.println ("Odd number of bytes in empty buffer in " + name);
+        // break;
+        // }
 
         int bytesUnpacked = unpack (packedScanLines[line], 0,
             packedScanLines[line].length, unpackedBuffer, ptr);
@@ -352,16 +353,17 @@ public class SHRPictureFile1 extends HiResImage
     }
 
     // -------------------------------------------------------------------------------//
-    //    private boolean isOddAndEmpty (byte[] buffer)
-    //    // -------------------------------------------------------------------------------//
-    //    {
-    //      if (buffer.length % 2 == 0)
-    //        return false;
-    //      for (byte b : buffer)
-    //        if (b != 0)
-    //          return false;
-    //      return true;
-    //    }
+    // private boolean isOddAndEmpty (byte[] buffer)
+    // //
+    // -------------------------------------------------------------------------------//
+    // {
+    // if (buffer.length % 2 == 0)
+    // return false;
+    // for (byte b : buffer)
+    // if (b != 0)
+    // return false;
+    // return true;
+    // }
 
     // -------------------------------------------------------------------------------//
     @Override

src/com/bytezone/diskbrowser/applefile/SHRPictureFile2.java

@@ -5,6 +5,7 @@ import java.awt.image.DataBuffer;
 import java.util.ArrayList;
 import java.util.List;
 
+import com.bytezone.diskbrowser.nufx.LZW3;
 import com.bytezone.diskbrowser.prodos.ProdosConstants;
 import com.bytezone.diskbrowser.utilities.HexFormatter;
 import com.bytezone.diskbrowser.utilities.Utility;
@@ -144,6 +145,36 @@ public class SHRPictureFile2 extends HiResImage
 
         break;
 
+      case 0x8005:
+        int ptr = buffer.length - 17;
+
+        int imageType = Utility.getShort (buffer, ptr);
+        int imageHeight = Utility.getShort (buffer, ptr + 2);
+        int imageWidth = Utility.getShort (buffer, ptr + 4);
+
+        String id = HexFormatter.getPascalString (buffer, ptr + 6);
+        assert "DreamWorld".equals (id);
+
+        int expectedLen = 32000 + 512;
+        if (imageType == 0)                 // 256 colours
+          expectedLen += (256 + 512);
+        else                                // 3200 colours
+          expectedLen += 6400;
+
+        byte[] dstBuffer = new byte[expectedLen + 1024];
+        LZW3 lzw3 = new LZW3 ();
+        int bytes = lzw3.unpack (buffer, dstBuffer, expectedLen);
+        buffer = dstBuffer;
+
+        colorTables = new ColorTable[imageHeight];
+        for (int i = 0; i < colorTables.length; i++)
+        {
+          colorTables[i] = new ColorTable (i, this.buffer, 32000 + i * COLOR_TABLE_SIZE);
+          colorTables[i].reverse ();
+        }
+
+        break;
+
       default:
         System.out.printf ("%s: PNT unknown aux: %04X%n", name, auxType);
         failureReason = "unknown PNT aux";

src/com/bytezone/diskbrowser/applefile/SegmentDictionary.java

@@ -1,16 +1,40 @@
 package com.bytezone.diskbrowser.applefile;
 
+import com.bytezone.diskbrowser.utilities.Utility;
+
 // -----------------------------------------------------------------------------------//
 public class SegmentDictionary
 // -----------------------------------------------------------------------------------//
 {
   private final boolean isValid;
+  private int[] codeAddress = new int[16];
+  private int[] codeLength = new int[16];
+  private String[] segName = new String[16];
 
   // ---------------------------------------------------------------------------------//
   public SegmentDictionary (String name, byte[] buffer)
   // ---------------------------------------------------------------------------------//
   {
     isValid = !name.equals ("SYSTEM.INTERP");       // temporary
+
+    int ptr = 0;
+    for (int seg = 0; seg < 16; seg++)
+    {
+      codeAddress[seg] = Utility.getShort (buffer, ptr);
+      ptr += 2;
+      codeLength[seg] = Utility.getShort (buffer, ptr);
+      ptr += 2;
+    }
+
+    ptr = 64;
+    for (int seg = 0; seg < 16; seg++)
+    {
+      segName[seg] = new String (buffer, ptr, 8);
+      ptr += 8;
+    }
+
+    //    for (int seg = 0; seg < 16; seg++)
+    //      System.out.printf ("%04X  %04X  %s%n", codeAddress[seg], codeLength[seg], segName[seg]);
   }
 
   // ---------------------------------------------------------------------------------//

src/com/bytezone/diskbrowser/applefile/StoredVariables.java

@@ -52,7 +52,7 @@ public class StoredVariables extends AbstractFile
       else if (suffix == '%')
       {
         intValue = Utility.intValue (buffer[ptr + 3], buffer[ptr + 2]);   // backwards!
-        if ((buffer[ptr + 2] & 0x80) > 0)
+        if ((buffer[ptr + 2] & 0x80) != 0)
           intValue -= 65536;
         text.append (" = " + intValue);
       }
@@ -60,7 +60,7 @@ public class StoredVariables extends AbstractFile
       {
         if (hasValue (ptr + 2))
         {
-          String value = HexFormatter.floatValue (buffer, ptr + 2) + "";
+          String value = Utility.floatValue (buffer, ptr + 2) + "";
           if (value.endsWith (".0"))
             text.append (" = " + value.substring (0, value.length () - 2));
           else
@@ -101,7 +101,7 @@ public class StoredVariables extends AbstractFile
       suffix = ' ';
     }
 
-    StringBuffer variableName = new StringBuffer ();
+    StringBuilder variableName = new StringBuilder ();
     variableName.append (c1);
     if (c2 > 32)
       variableName.append (c2);
@@ -116,12 +116,14 @@ public class StoredVariables extends AbstractFile
   // ---------------------------------------------------------------------------------//
   {
     StringBuilder text = new StringBuilder ("(");
+
     for (int i = 0; i < values.length; i++)
     {
       text.append (values[i]);
       if (i < values.length - 1)
         text.append (',');
     }
+
     return text.append (')').toString ();
   }
 
@@ -178,7 +180,7 @@ public class StoredVariables extends AbstractFile
         else if (elementSize == 5)
         {
           if (hasValue (p))
-            text.append (HexFormatter.floatValue (buffer, p));
+            text.append (Utility.floatValue (buffer, p));
           text.append ("\n");
         }
         p += elementSize;
@@ -201,6 +203,7 @@ public class StoredVariables extends AbstractFile
     for (int i = 0; i < 5; i++)
       if (buffer[p + i] != 0)
         return true;
+
     return false;
   }
 

src/com/bytezone/diskbrowser/applefile/SubLine.java

@@ -202,7 +202,7 @@ public class SubLine implements ApplesoftConstants
   private void checkFunction (String var, byte terminator)
   // ---------------------------------------------------------------------------------//
   {
-    assert terminator == ASCII_LEFT_BRACKET;
+    //    assert terminator == ASCII_LEFT_BRACKET;
 
     if (!functions.contains (var))
       functions.add (var);

src/com/bytezone/diskbrowser/applefile/UserBasicFormatter.java

@@ -47,8 +47,8 @@ public class UserBasicFormatter extends BasicFormatter
     {
       StringBuilder text = new StringBuilder (String.format ("%5d", (line.lineNumber)));
 
-      int indentLevel = loopVariables.size ();   // each full line starts at the loop indent
-      int ifIndent = 0;                     // IF statement(s) limit back indentation by NEXT
+      int indentLevel = loopVariables.size (); // each full line starts at the loop indent
+      int ifIndent = 0;                  // IF statement(s) limit back indentation by NEXT
 
       for (SubLine subline : line.sublines)
       {
@@ -107,7 +107,7 @@ public class UserBasicFormatter extends BasicFormatter
         String lineText = alignment.getAlignedText (subline);
 
         if (subline.is (TOKEN_DATA) && basicPreferences.deleteExtraDataSpace)
-          lineText = lineText.replaceFirst ("DATA  ", "DATA ");
+          lineText = lineText.replaceFirst ("DATA  +", "DATA ");     // regex
 
         // Check for a wrappable REM/DATA/DIM statement
         // (see SEA BATTLE on DISK283.DSK)

src/com/bytezone/diskbrowser/applefile/equates.txt

@@ -22,10 +22,19 @@
 0035  YSAV1
 0036  CSWL
 0037  CSHW
-0044  A5L - volume number?
+003D  A1H
+003C  A1L
+003F  A2H
+003E  A2L
+0041  A3H
+0040  A3L
+0043  A4H
+0042  A4L
+0045  A5H
+0044  A5L
 004E  RND-LO
 004F  RND-HI
-0050  LINNUM
+0050  LINNUM line number, unsigned word
 0067  Basic program address LO
 0068  Basic program address HI
 0069  Basic variables address LO
@@ -52,8 +61,48 @@
 0200  Input buffer
 
 03D0  Applesoft warm start
-03EA  VECT
-A56E  catalog routine
+
+03F2  RST: Control-reset vector
+03F3  RST: Control-reset vector
+03F4  RST: Control-reset checksum (EOR #$A5)
+03FB  NMI: Non-Maskable Interrupt vector
+03FC  NMI: Non-Maskable Interrupt vector
+03F8  USR: user vector (Control-Y)
+03F9  USR: user vector (Control-Y)
+03FE  IRQ: Interrupt Request/BRK vector
+03FF  IRQ: Interrupt Request/BRK vector
+
+A54F  DOS 3.3 INIT
+A413  DOS 3.3 LOAD
+A397  DOS 3.3 SAVE
+A4D1  DOS 3.3 RUN
+A4F0  DOS 3.3 CHAIN
+A263  DOS 3.3 DELETE
+A271  DOS 3.3 LOCK
+A275  DOS 3.3 UNLOCK
+A2EA  DOS 3.3 CLOSE
+A51B  DOS 3.3 READ
+A5C6  DOS 3.3 EXEC
+A510  DOS 3.3 WRITE
+A5DD  DOS 3.3 POSITION
+A2A3  DOS 3.3 OPEN
+A298  DOS 3.3 APPEND
+A281  DOS 3.3 RENAME
+A56E  DOS 3.3 CATALOG
+A233  DOS 3.3 MON
+A23D  DOS 3.3 NOMON
+A229  DOS 3.3 PR#
+A22E  DOS 3.3 IN#
+A251  DOS 3.3 MAXFILES
+A57A  DOS 3.3 FP
+A59E  DOS 3.3 INT
+A331  DOS 3.3 BSAVE
+A35D  DOS 3.3 BLOAD
+A38E  DOS 3.3 BRUN
+A27D  DOS 3.3 VERIFY
+
+BF00  ProDOS MLI entry point
+BF98  ProDOS Machine ID Byte
 
 * C000  80STOREOFF      Allow page2 to switch video page1 page2
 C001  80STOREON       Allow page2 to switch main & aux video memory
@@ -68,8 +117,12 @@ C009  ALTZPON         Enable aux memory from $0000-$01FF & avl BSR
 C00A  SLOTC3ROMOFF    Enable main ROM from $C300-$C3FF
 C00B  SLOTC3ROMON     Enable slot ROM from $C300-$C3FF
 
-C000  KYBD - last key pressed
-C010  STROBE - Clear KYBD
+C000  KBD - Last key pressed
+C010  KBDSTRB - Clear KYBD
+C019  VBL - Vertical Blank
+C020  TAPEOUT - Toggle cassette output
+C030  SPKR - Toggle speaker
+C040  STROBE - Output strobe pulse to game I/O connector
 C050  TXTCLR - Display Graphics
 C051  TXTSET - Display Text
 C052  MIXCLR - Display Full Screen
@@ -78,6 +131,15 @@ C054  TXTPAGE1 - Display Page 1
 C055  TXTPAGE2 - If 80STORE Off: Display Page 2, If 80STORE On: Read/Write Aux Display Mem
 C056  LORES - Display LoRes Graphics
 C057  HIRES - Display HiRes Graphics
+C060  TAPEIN - Read audio from cassette input
+C061  PB0 - Read joystick button 0/Open-Apple key
+C062  PB1 - Read joystick button 1/Closed-Apple key
+C063  PB2 - Read joystick button 2
+C064  PADDL0 - Read paddle/joystick 0
+C065  PADDL1 - Read paddle/joystick 1
+C066  PADDL2 - Read paddle/joystick 2
+C067  PADDL3 - Read paddle/joystick 3
+C070  PTRIG - Clear paddle/joystick timer
 
 C080  Read RAM bank 2; no write
 C081  ROMIN - Read ROM; write RAM bank 2
@@ -96,6 +158,9 @@ C08D  Read ROM; write RAM bank 1
 C08E  Read ROM; no write
 C08F  Read/write RAM bank 1
 
+C600  BOOT0 - Disk II controller ROM
+0801  BOOT1 - Disk II bootstrap RAM
+
 D52C  INLIN numeric input
 DB3A  STROUT - output a string
 DB5C  output a character
@@ -106,6 +171,7 @@ DEC0  SYNCHR
 DEC9  syntax error
 DFE3  PTRGET
 
+E000  Applesoft BASIC entry
 E053  find a variable
 E10C  convert FP to INT
 E2F2  GIVAYF - convert (A,Y) to FP
@@ -177,15 +243,16 @@ F941  PRINTAX - print AX registers in hex
 F948  PRBLNK - print 3 spaces
 F94A  PRBL2 - print X blank spaces
 
-FAA6  reboot DOS
+FAA6  PWRUP - reboot
 FAFF  0 = Autostart ROM, 1 = Old Monitor
 
 FB1E  PREAD - read game paddle
-FB2F  initialise text screen
+FB2F  INIT - initialise text screen
 FB39  text mode - SETTXT
 FB40  SETGR
 FB5B  TABV - monitor tab routine
-FB6F  set powerup checksum
+FB6F  SETPWRC - set powerup checksum
+FBB3  VERSION - monitor ROM ID byte
 FBC1  BASCALC - calculate video address
 FBDD  BELL1 - beep speaker
 FBF4  CURSRIT - move cursor right
@@ -193,6 +260,7 @@ FBF4  CURSRIT - move cursor right
 FC10  CURSLFT - move cursor left
 FC1A  CURSUP - move cursor up
 FC22  VTAB
+FC24  VTABZ
 FC42  CLREOP - clear to end of page
 FC58  HOME - clear screen
 FC62  CR
@@ -215,12 +283,13 @@ FDE3  PRHEX - print a hex digit
 FDED  COUT - print a character (in Acc)
 FDF0  COUT1 - print character to screen
 
-FE2C  move a block of memory
+FE1F  IDROUTINE - detect //gs
+FE2C  MOVE - move a block of memory
 FE80  SETINV - set inverse mode
 FE84  SETNORM - set normal mode
-FE89  disconnect DOS from I/O links
+FE89  SETKBD - disconnect DOS from I/O links
 FE8B  INPORT
-FE93  disconnect DOS from I/O links
+FE93  SETVID - disconnect DOS from I/O links
 FE95  OUTPORT
 FECD  WRITE
 FEFD  READ
@@ -231,6 +300,14 @@ FF3A  BELL
 FF3F  IOREST - restore all registers
 FF4A  IOSAVE - save all registers
 FF58  RTS - jump to <address on stack> + 1
-FF59  Monitor cold entry point
+FF59  MON - Monitor cold entry point (w/BELL)
+FF69  MONZ - Monitor entry point from BASIC (CALL -151)
 FFA7  GETNUM - move num to A2L.A2H
 FFC7  ZMODE - monitor get ASCII return
+
+FFFA  NMI_VECTOR
+FFFB  NMI_VECTOR
+FFFC  RESET_VECTOR
+FFFD  RESET_VECTOR
+FFFE  IRQ_VECTOR
+FFFF  IRQ_VECTOR

src/com/bytezone/diskbrowser/appleworks/AppleworksWPFile.java

@@ -139,7 +139,7 @@ public class AppleworksWPFile extends AbstractFile
           break;
 
         default:
-          System.out.printf ("Unknown value in %s: %02X %02X%n", name, b1, b2);
+          System.out.printf ("Unknown value in %s: %02X %02X%n", getName (), b1, b2);
       }
       ptr += 2;
     }

src/com/bytezone/diskbrowser/cpm/CPMCatalogSector.java

@@ -26,23 +26,28 @@ class CPMCatalogSector extends AbstractSector
 
     for (int i = 0; i <= 255; i += CATALOG_ENTRY_SIZE)
     {
-      if (buffer[i] == (byte) 0xE5)
+      if (buffer[i] == (byte) 0xE5 && buffer[i + 1] == (byte) 0xE5)
+        break;
+
+      int userNumber = buffer[i] & 0xFF;
+      if (userNumber > 31 && userNumber != (byte) 0xE5)
         break;
 
       boolean readOnly = (buffer[i + 9] & 0x80) != 0;
       boolean systemFile = (buffer[i + 10] & 0x80) != 0;
+      boolean unknown = (buffer[i + 11] & 0x80) != 0;
       String type;
       String extra;
 
-      if (readOnly || systemFile)
+      if (readOnly || systemFile || unknown)
       {
         byte[] typeBuffer = new byte[3];
         typeBuffer[0] = (byte) (buffer[i + 9] & 0x7F);
         typeBuffer[1] = (byte) (buffer[i + 10] & 0x7F);
-        typeBuffer[2] = buffer[i + 11];
+        typeBuffer[2] = (byte) (buffer[i + 11] & 0x7F);
         type = new String (typeBuffer).trim ();
-        extra = String.format (" (%s%s)", readOnly ? "read only" : "",
-            systemFile ? "system file" : "");
+        extra = String.format (" (%s%s%s)", readOnly ? "read only" : "",
+            systemFile ? "system file" : "", unknown ? "unknown" : "");
       }
       else
       {
@@ -50,8 +55,14 @@ class CPMCatalogSector extends AbstractSector
         extra = "";
       }
 
-      addText (text, buffer, i, 1, "User number");
-      addText (text, buffer, i + 1, 4, "File name : " + new String (buffer, i + 1, 8));
+      if (buffer[i] == (byte) 0xE5)
+        addText (text, buffer, i, 1, "Deleted file?");
+      else
+        addText (text, buffer, i, 1, "User number");
+      if (buffer[i + 1] == 0)
+        addText (text, buffer, i + 1, 4, "File name : ");
+      else
+        addText (text, buffer, i + 1, 4, "File name : " + new String (buffer, i + 1, 8));
       addText (text, buffer, i + 5, 4, "");
       addText (text, buffer, i + 9, 3, "File type : " + type + extra);
       addText (text, buffer, i + 12, 1, "Extent counter LO");

src/com/bytezone/diskbrowser/cpm/CPMDisk.java

@@ -1,6 +1,7 @@
 package com.bytezone.diskbrowser.cpm;
 
 import java.awt.Color;
+import java.util.ArrayList;
 import java.util.List;
 
 import javax.swing.tree.DefaultMutableTreeNode;
@@ -13,11 +14,15 @@ import com.bytezone.diskbrowser.disk.Disk;
 import com.bytezone.diskbrowser.disk.DiskAddress;
 import com.bytezone.diskbrowser.disk.SectorType;
 import com.bytezone.diskbrowser.gui.DataSource;
+import com.bytezone.diskbrowser.utilities.HexFormatter;
 
+// https://www.retrotechnology.com/dri/howto_cpm.html
 // -----------------------------------------------------------------------------------//
 public class CPMDisk extends AbstractFormattedDisk
 // -----------------------------------------------------------------------------------//
 {
+  private static final int EMPTY_BYTE_VALUE = 0xE5;
+
   private final Color green = new Color (0, 200, 0);
 
   public final SectorType catalogSector = new SectorType ("Catalog", green);
@@ -50,7 +55,7 @@ public class CPMDisk extends AbstractFormattedDisk
     sectorTypesList.add (macSector);
     sectorTypesList.add (otherSector);
 
-    setEmptyByte ((byte) 0xE5);
+    setEmptyByte ((byte) EMPTY_BYTE_VALUE);
 
     // search for the version string
     for (int i = 8; i >= 4; i -= 2)
@@ -74,22 +79,28 @@ public class CPMDisk extends AbstractFormattedDisk
 
       sectorTypes[da.getBlockNo ()] = catalogSector;
       byte[] buffer = disk.readBlock (da);
+
       int b1 = buffer[0] & 0xFF;
       int b2 = buffer[1] & 0xFF;
-      if (b1 == 0xE5)
+
+      if (b1 == EMPTY_BYTE_VALUE && (b2 == EMPTY_BYTE_VALUE || b2 == 0))
         continue;
-      if (b1 > 31)
+
+      if (b1 > 31 && b1 != EMPTY_BYTE_VALUE)
         break;
-      if (b2 < 32 || (b2 > 126 && b2 != 0xE5))
+
+      if (b2 <= 32 || (b2 > 126 && b2 != EMPTY_BYTE_VALUE))
         break;
 
       for (int i = 0; i < buffer.length; i += 32)
       {
         b1 = buffer[i] & 0xFF;
         b2 = buffer[i + 1] & 0xFF;
-        if (b1 == 0xE5)
-          break;
-        if (b2 < 32 || (b2 > 126 && b2 != 0xE5))
+
+        if (b1 == EMPTY_BYTE_VALUE)         // deleted file??
+          continue;
+
+        if (b2 <= 32 || (b2 > 126 && b2 != EMPTY_BYTE_VALUE))
           break;
 
         DirectoryEntry entry = new DirectoryEntry (this, buffer, i);
@@ -111,9 +122,6 @@ public class CPMDisk extends AbstractFormattedDisk
       }
     }
 
-    //    root.setUserObject (getCatalog ());         // override the disk's default display
-    //    makeNodeVisible (rootNode.getFirstLeaf ());
-
     volumeNode.setUserObject (getCatalog ());
     makeNodeVisible (volumeNode.getFirstLeaf ());
   }
@@ -147,6 +155,7 @@ public class CPMDisk extends AbstractFormattedDisk
   {
     if (fileEntries.size () > 0 && fileEntries.size () > fileNo)
       return fileEntries.get (fileNo).getSectors ();
+
     return null;
   }
 
@@ -180,19 +189,17 @@ public class CPMDisk extends AbstractFormattedDisk
   public AppleFileSource getCatalog ()
   // ---------------------------------------------------------------------------------//
   {
-    String newLine = String.format ("%n");
-    String line =
-        "----  ---------  --- - -  --   --   --   --   ----------------------------"
-            + "-------------------" + newLine;
+    String line = "----  ---------  --- - -  --   --   --   --   ----------------------------"
+        + "-------------------\n";
     StringBuilder text = new StringBuilder ();
     text.append (String.format ("File : %s%n%n", getDisplayPath ()));
-    text.append ("User  Name       Typ R S  Ex   S2   S1   RC   Blocks" + newLine);
+    text.append ("User  Name       Typ R S  Ex   S2   S1   RC   Blocks\n");
     text.append (line);
 
     for (AppleFileSource entry : fileEntries)
     {
       text.append (((DirectoryEntry) entry).line ());
-      text.append (newLine);
+      text.append ("\n");
     }
     text.append (line);
     if (version != 0)
@@ -204,6 +211,64 @@ public class CPMDisk extends AbstractFormattedDisk
   // ---------------------------------------------------------------------------------//
   public static boolean isCorrectFormat (AppleDisk disk)
   // ---------------------------------------------------------------------------------//
+  {
+    boolean debug = false;
+
+    disk.setInterleave (3);
+
+    // collect catalog sectors
+    List<DiskAddress> catalog = new ArrayList<> ();
+    for (int i = 0; i < 8; i++)
+      catalog.add (disk.getDiskAddress (3, i));
+    byte[] buffer = disk.readBlocks (catalog);
+
+    if (debug)
+      System.out.println (HexFormatter.format (buffer));
+
+    for (int i = 0; i < 2; i++)
+    {
+      int start = i * 1024;
+      int end = start + 1024;
+
+      for (int ptr = start; ptr < end; ptr += 32)
+      {
+        if (buffer[ptr] == (byte) EMPTY_BYTE_VALUE)
+        {
+          if (buffer[ptr + 1] == (byte) EMPTY_BYTE_VALUE      //
+              || buffer[ptr + 1] == 0)                        // finished this block
+            break;
+          continue;                                           // deleted file?
+        }
+
+        int userNo = buffer[ptr] & 0xFF;
+        if (userNo > 31)
+          return false;
+
+        for (int j = 1; j < 12; j++)
+        {
+          int ch = buffer[ptr + j] & 0x7F;                    // remove flag
+          if (ch < 32 || ch > 126)                            // invalid ascii
+            return false;
+        }
+
+        if (debug)
+        {
+          String fileName = new String (buffer, ptr + 1, 8);
+          String fileType = new String (buffer, ptr + 9, 3);
+          System.out.printf ("%2d  %s %s%n", userNo, fileName, fileType);
+        }
+      }
+    }
+
+    if (debug)
+      System.out.println ("CP/M disk");
+
+    return true;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  private static boolean isCorrectFormat2 (AppleDisk disk)
+  // ---------------------------------------------------------------------------------//
   {
     disk.setInterleave (3);
 
@@ -222,26 +287,60 @@ public class CPMDisk extends AbstractFormattedDisk
     for (int sector = 0; sector < 8; sector++)
     {
       byte[] buffer = disk.readBlock (3, sector);
+      System.out.println (HexFormatter.format (buffer));
 
       // check if entire sector is empty (everything == 0xE5)
-      if (bufferContainsAll (buffer, (byte) 0xE5))
+      if (bufferContainsAll (buffer, (byte) EMPTY_BYTE_VALUE))
+        break;
+
+      int b1 = buffer[0] & 0xFF;
+      int b2 = buffer[1] & 0xFF;
+
+      if (b1 == EMPTY_BYTE_VALUE && (b2 == EMPTY_BYTE_VALUE || b2 == 0))
+        continue;
+
+      if (b1 > 31 && b1 != EMPTY_BYTE_VALUE)
+        break;
+
+      if (b2 < 32 || (b2 > 126 && b2 != EMPTY_BYTE_VALUE))
         break;
 
       for (int i = 0; i < buffer.length; i += 32)
       {
-        int val = buffer[i] & 0xFF;
-        if (val == 0xE5)
-          break;
+        b1 = buffer[i] & 0xFF;
+        b2 = buffer[i + 1] & 0xFF;
 
-        if (val > 31)
+        if (b1 == EMPTY_BYTE_VALUE)         // deleted file??
+          continue;
+
+        if (b2 < 32 || (b2 > 126 && b2 != EMPTY_BYTE_VALUE))
           return false;
 
-        for (int j = 1; j <= 8; j++)
-        {
-          val = buffer[i + j] & 0xFF;
-          if (val < 32 || (val > 126 && val != 0xE5))
-            return false;
-        }
+        //        int val = buffer[i] & 0xFF;
+        //        if (val == EMPTY_BYTE_VALUE)
+        //        {
+        //          if (debug)
+        //            System.out.println ("empty value found - deleted file?");
+        //          break;
+        //        }
+
+        //        if (val > 31)
+        //        {
+        //          if (debug)
+        //            System.out.println ("val > 31");
+        //          return false;
+        //        }
+
+        //        for (int j = 1; j <= 8; j++)
+        //        {
+        //          val = buffer[i + j] & 0xFF;
+        //          if (val < 32 || (val > 126 && val != EMPTY_BYTE_VALUE))
+        //          {
+        //            if (debug)
+        //              System.out.println ("val < 32 || val > 126");
+        //            return false;
+        //          }
+        //        }
       }
     }
 

src/com/bytezone/diskbrowser/cpm/DirectoryEntry.java

@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import com.bytezone.diskbrowser.applefile.AppleFileSource;
+import com.bytezone.diskbrowser.applefile.CPMBasicFile;
 import com.bytezone.diskbrowser.applefile.CPMTextFile;
 import com.bytezone.diskbrowser.applefile.DefaultAppleFile;
 import com.bytezone.diskbrowser.disk.AppleDiskAddress;
@@ -54,7 +55,11 @@ class DirectoryEntry implements AppleFileSource
     type = new String (typeBuffer).trim ();
 
     userNumber = buffer[offset] & 0xFF;
-    name = new String (buffer, offset + 1, 8).trim ();
+    if (userNumber == 0xE5 && buffer[offset + 1] == 0)
+      name = "";
+    else
+      name = new String (buffer, offset + 1, 8).trim ();
+
     extent = buffer[offset + 12] & 0xFF;
     s2 = buffer[offset + 13] & 0xFF;
     s1 = buffer[offset + 14] & 0xFF;
@@ -77,9 +82,6 @@ class DirectoryEntry implements AppleFileSource
       for (int i = 0; i < 4; i++)
         blocks.add (new AppleDiskAddress (disk, blockNumber + i));
     }
-    //    if (name.equals ("cp/m"))
-    //      for (DiskAddress da : blocks)
-    //        System.out.println (da);
   }
 
   // ---------------------------------------------------------------------------------//
@@ -123,6 +125,7 @@ class DirectoryEntry implements AppleFileSource
     for (DiskAddress sector : blocks)
       if (sector.matches (da))
         return true;
+
     return false;
   }
 
@@ -136,9 +139,8 @@ class DirectoryEntry implements AppleFileSource
     char ro = readOnly ? '*' : ' ';
     char sf = systemFile ? '*' : ' ';
 
-    String text =
-        String.format ("%3d   %-8s   %-3s %s %s  %02X   %02X   %02X   %02X   %s",
-            userNumber, name, type, ro, sf, extent, s2, s1, recordsUsed, bytes);
+    String text = String.format ("%3d   %-8s   %-3s %s %s  %02X   %02X   %02X   %02X   %s",
+        userNumber, name, type, ro, sf, extent, s2, s1, recordsUsed, bytes);
     for (DirectoryEntry entry : entries)
       text = text + "\n" + entry.line ();
 
@@ -210,23 +212,18 @@ class DirectoryEntry implements AppleFileSource
     byte[] exactBuffer = new byte[len];
     System.arraycopy (buffer, 0, exactBuffer, 0, len);
 
-    int max = Math.min (256, exactBuffer.length);
-    int count = 0;
-    for (int i = 1; i < max; i++)
-    {
-      if (exactBuffer[i - 1] == 0x0D && exactBuffer[i] == 0x0A)
-        ++count;
-    }
-
     if ("COM".equals (type))
       appleFile = new DefaultAppleFile (name, exactBuffer, "COM File");
     else if ("DVR".equals (type))
       appleFile = new DefaultAppleFile (name, exactBuffer, "DVR File");
-    else if ("ASM".equals (type) || "DOC".equals (type) || "TXT".equals (type)
-        || count > 2)
+    else if ("ASM".equals (type) || "DOC".equals (type) || "COB".equals (type)
+        || "HLP".equals (type) || "TXT".equals (type) || "LET".equals (type) || "ALX".equals (type)
+        || "SRC".equals (type) || "H".equals (type) || exactBuffer[len - 1] == 0x1A)
       appleFile = new CPMTextFile (name, exactBuffer);
+    else if ("BAS".equals (type))
+      appleFile = new CPMBasicFile (name, exactBuffer);
     else
-      appleFile = new DefaultAppleFile (name, exactBuffer, "CPM File : " + type);
+      appleFile = new DefaultAppleFile (name, exactBuffer, "CPM File : " + name + "." + type);
 
     return appleFile;
   }

src/com/bytezone/diskbrowser/disk/AbstractFormattedDisk.java

@@ -206,8 +206,7 @@ public abstract class AbstractFormattedDisk implements FormattedDisk
 
     DefaultMutableTreeNode root = getCatalogTreeRoot ();
     if (root.getUserObject () == null)
-      root.setUserObject (
-          new DefaultAppleFileSource (getName (), disk.toString (), this));
+      root.setUserObject (new DefaultAppleFileSource (getName (), disk.toString (), this));
   }
 
   // ---------------------------------------------------------------------------------//
@@ -234,15 +233,15 @@ public abstract class AbstractFormattedDisk implements FormattedDisk
   public String getDisplayPath ()
   // ---------------------------------------------------------------------------------//
   {
-    //    if (originalPath != null)
-    //      return originalPath.toString ();
-
     String home = System.getProperty ("user.home");
 
-    String path = originalPath != null ? originalPath.toString ()
-        : disk.getFile ().getAbsolutePath ();
-    if (path.startsWith (home))
-      return "~" + path.substring (home.length ());
+    String path =
+        originalPath != null ? originalPath.toString () : disk.getFile ().getAbsolutePath ();
+
+    int pos = path.indexOf (home);
+
+    if (pos == 0 || (path.startsWith ("/Volumes/") && pos > 0))
+      return "~" + path.substring (home.length () + pos);
 
     return disk.getFile ().getAbsolutePath ();
   }
@@ -327,8 +326,7 @@ public abstract class AbstractFormattedDisk implements FormattedDisk
     if (children != null)
       while (children.hasMoreElements ())
       {
-        DefaultMutableTreeNode childNode =
-            (DefaultMutableTreeNode) children.nextElement ();
+        DefaultMutableTreeNode childNode = (DefaultMutableTreeNode) children.nextElement ();
         if (childNode.getUserObject ().toString ().indexOf (name) > 0)
           return childNode;
       }

src/com/bytezone/diskbrowser/disk/AbstractSector.java

@@ -8,14 +8,12 @@ import javax.swing.JPanel;
 import com.bytezone.diskbrowser.applefile.AssemblerProgram;
 import com.bytezone.diskbrowser.gui.DataSource;
 import com.bytezone.diskbrowser.utilities.HexFormatter;
+import com.bytezone.diskbrowser.utilities.Utility;
 
 // -----------------------------------------------------------------------------------//
 public abstract class AbstractSector implements DataSource
 // -----------------------------------------------------------------------------------//
 {
-  private static String newLine = String.format ("%n");
-  private static String newLine2 = newLine + newLine;
-
   final public byte[] buffer;
   protected Disk disk;
   protected DiskAddress diskAddress;
@@ -90,10 +88,11 @@ public abstract class AbstractSector implements DataSource
   {
     StringBuilder text = new StringBuilder ();
 
-    text.append (title + newLine2);
-    text.append ("Offset    Value         Description" + newLine);
+    text.append (title + "\n\n");
+    text.append ("Offset    Value         Description\n");
     text.append ("=======   ===========   "
-        + "===============================================================" + newLine);
+        + "===============================================================\n");
+
     return text;
   }
 
@@ -143,14 +142,13 @@ public abstract class AbstractSector implements DataSource
       String desc)
   // ---------------------------------------------------------------------------------//
   {
-    if (size == 1)
-      desc += " (" + (b[offset] & 0xFF) + ")";
-    else if (size == 2)
-      desc +=
-          String.format (" (%,d)", ((b[offset + 1] & 0xFF) * 256 + (b[offset] & 0xFF)));
-    else if (size == 3)
-      desc += String.format (" (%,d)", ((b[offset + 2] & 0xFF) * 65536)
-          + ((b[offset + 1] & 0xFF) * 256) + (b[offset] & 0xFF));
+    desc += switch (size)
+    {
+      case 1 -> " (" + (b[offset] & 0xFF) + ")";
+      case 2 -> String.format (" (%,d)", Utility.getShort (b, offset));
+      case 3 -> String.format (" (%,d)", Utility.readTriple (b, offset));
+      default -> "";
+    };
 
     addText (text, b, offset, size, desc);
   }

src/com/bytezone/diskbrowser/disk/AppleDisk.java

@@ -16,9 +16,9 @@ import java.util.zip.Checksum;
 import com.bytezone.diskbrowser.nib.NibFile;
 import com.bytezone.diskbrowser.nib.V2dFile;
 import com.bytezone.diskbrowser.nib.WozFile;
-import com.bytezone.diskbrowser.utilities.Binary2;
+import com.bytezone.diskbrowser.nufx.Binary2;
+import com.bytezone.diskbrowser.nufx.NuFX;
 import com.bytezone.diskbrowser.utilities.FileFormatException;
-import com.bytezone.diskbrowser.utilities.NuFX;
 import com.bytezone.diskbrowser.utilities.Utility;
 
 // -----------------------------------------------------------------------------------//
@@ -48,11 +48,11 @@ public class AppleDisk implements Disk
 
   private int interleave = 0;
   private static int[][] interleaveSector = //
-      { { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
-          22, 23, 24, 25, 26, 27, 28, 29, 30, 31 },                     // None
-        { 0, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 15 },       // Prodos/Pascal
-        { 0, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 15 },       // Infocom
-        { 0, 6, 12, 3, 9, 15, 14, 5, 11, 2, 8, 7, 13, 4, 10, 1 } };     // CPM
+      { { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,       // 
+          17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 },   // None
+          { 0, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 15 },       // Prodos/Pascal
+          { 0, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 15 },       // Infocom
+          { 0, 6, 12, 3, 9, 15, 14, 5, 11, 2, 8, 7, 13, 4, 10, 1 } };     // CPM
 
   // Physical disk interleave:
   // Info from http://www.applelogic.org/TheAppleIIEGettingStarted.html
@@ -101,8 +101,7 @@ public class AppleDisk implements Disk
   }
 
   // ---------------------------------------------------------------------------------//
-  public AppleDisk (File file, int tracks, int sectors, int skip)
-      throws FileFormatException
+  public AppleDisk (File file, int tracks, int sectors, int skip) throws FileFormatException
   // ---------------------------------------------------------------------------------//
   {
     assert (file.exists ()) : "No such path :" + file.getAbsolutePath ();
@@ -158,7 +157,7 @@ public class AppleDisk implements Disk
       tracks = blocks / 8;          // change parameter!
       sectors = 8;                  // change parameter!
     }
-    else if (suffix.equalsIgnoreCase ("HDV")
+    else if (suffix.equalsIgnoreCase ("HDV") //
         || (suffix.equalsIgnoreCase ("po") && tracks > 50)) // ULTIMATE APPLE1 CFFA 3.5.po
     {
       //this.blocks = (int) file.length () / 4096 * 8; // reduce blocks to a multiple of 8
@@ -166,7 +165,7 @@ public class AppleDisk implements Disk
       this.sectorSize = 512;
       this.trackSize = sectors * sectorSize;
     }
-    else if (file.length () == 143360 && tracks == 256 && sectors == 8)    // wiz4
+    else if (file.length () == 143360 && tracks == 256 && sectors == 8)    // wiz4 or wiz5
     {
       this.blocks = tracks * sectors;
       this.sectorSize = 512;
@@ -363,7 +362,6 @@ public class AppleDisk implements Disk
   // ---------------------------------------------------------------------------------//
   {
     this.dosVersion = version;
-    //    System.out.printf ("DOS version %02X%n", version);
   }
 
   /*
@@ -469,6 +467,7 @@ public class AppleDisk implements Disk
         readBuffer (da, buffer, ptr);
       ptr += sectorSize;
     }
+
     return buffer;
   }
 
@@ -557,8 +556,7 @@ public class AppleDisk implements Disk
   {
     if (!isValidAddress (block))
     {
-      System.out.printf ("getDiskAddress: Invalid block : %d of %d%n", block,
-          this.blocks);
+      System.out.printf ("getDiskAddress: Invalid block : %d of %d%n", block, this.blocks);
       return null;
       //      return new AppleDiskAddress (this, 0);    // this was looping 26/07/2016
     }
@@ -624,10 +622,9 @@ public class AppleDisk implements Disk
   // ---------------------------------------------------------------------------------//
   {
     assert da.getDisk () == this : "Disk address not applicable to this disk";
-    assert sectorSize == SECTOR_SIZE
-        || sectorSize == BLOCK_SIZE : "Invalid sector size : " + sectorSize;
-    assert interleave >= 0 && interleave <= MAX_INTERLEAVE : "Invalid interleave : "
-        + interleave;
+    assert sectorSize == SECTOR_SIZE || sectorSize == BLOCK_SIZE : "Invalid sector size : "
+        + sectorSize;
+    assert interleave >= 0 && interleave <= MAX_INTERLEAVE : "Invalid interleave : " + interleave;
 
     if (sectorSize == SECTOR_SIZE)
     {
@@ -640,8 +637,7 @@ public class AppleDisk implements Disk
       System.arraycopy (diskBuffer, diskOffset, buffer, bufferOffset, SECTOR_SIZE);
 
       diskOffset = getBufferOffset (da, 1);
-      System.arraycopy (diskBuffer, diskOffset, buffer, bufferOffset + SECTOR_SIZE,
-          SECTOR_SIZE);
+      System.arraycopy (diskBuffer, diskOffset, buffer, bufferOffset + SECTOR_SIZE, SECTOR_SIZE);
     }
   }
 
@@ -650,10 +646,9 @@ public class AppleDisk implements Disk
   // ---------------------------------------------------------------------------------//
   {
     assert da.getDisk () == this : "Disk address not applicable to this disk";
-    assert sectorSize == SECTOR_SIZE
-        || sectorSize == BLOCK_SIZE : "Invalid sector size : " + sectorSize;
-    assert interleave >= 0 && interleave <= MAX_INTERLEAVE : "Invalid interleave : "
-        + interleave;
+    assert sectorSize == SECTOR_SIZE || sectorSize == BLOCK_SIZE : "Invalid sector size : "
+        + sectorSize;
+    assert interleave >= 0 && interleave <= MAX_INTERLEAVE : "Invalid interleave : " + interleave;
 
     if (sectorSize == SECTOR_SIZE)
     {
@@ -670,6 +665,13 @@ public class AppleDisk implements Disk
     }
   }
 
+  // ---------------------------------------------------------------------------------//
+  public byte[] getBuffer ()
+  // ---------------------------------------------------------------------------------//
+  {
+    return diskBuffer;
+  }
+
   // ---------------------------------------------------------------------------------//
   private int getBufferOffset (DiskAddress da)
   // ---------------------------------------------------------------------------------//
@@ -731,12 +733,8 @@ public class AppleDisk implements Disk
   {
     StringBuilder text = new StringBuilder ();
 
-    String path = file.getAbsolutePath ();
-    String home = System.getProperty ("user.home");
-    if (path.startsWith (home))
-      path = "~" + path.substring (home.length ());
-
-    text.append (String.format ("Path ......... %s%n", path));
+    text.append (
+        String.format ("Path ......... %s%n", Utility.getShortPath (file.getAbsolutePath ())));
     text.append (String.format ("File name .... %s%n", file.getName ()));
     text.append (String.format ("File size .... %,d%n", file.length ()));
     text.append (String.format ("Tracks ....... %d%n", tracks));

src/com/bytezone/diskbrowser/disk/DefaultAppleFileSource.java

@@ -49,8 +49,8 @@ public class DefaultAppleFileSource implements AppleFileSource
   {
     this (title, file, owner);
     this.blocks = blocks;
-    if (file instanceof DefaultDataSource)
-      ((DefaultDataSource) file).buffer = owner.getDisk ().readBlocks (blocks);
+    if (file instanceof DefaultDataSource dds)
+      dds.buffer = owner.getDisk ().readBlocks (blocks);
   }
 
   // ---------------------------------------------------------------------------------//
@@ -58,8 +58,8 @@ public class DefaultAppleFileSource implements AppleFileSource
   // ---------------------------------------------------------------------------------//
   {
     this.blocks = blocks;
-    if (file instanceof DefaultDataSource)
-      ((DefaultDataSource) file).buffer = owner.getDisk ().readBlocks (blocks);
+    if (file instanceof DefaultDataSource dds)
+      dds.buffer = owner.getDisk ().readBlocks (blocks);
   }
 
   // ---------------------------------------------------------------------------------//

src/com/bytezone/diskbrowser/disk/DiskFactory.java

@@ -1,5 +1,6 @@
 package com.bytezone.diskbrowser.disk;
 
+import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -18,11 +19,12 @@ import com.bytezone.diskbrowser.infocom.InfocomDisk;
 import com.bytezone.diskbrowser.nib.NibFile;
 import com.bytezone.diskbrowser.nib.V2dFile;
 import com.bytezone.diskbrowser.nib.WozFile;
+import com.bytezone.diskbrowser.nufx.Binary2;
+import com.bytezone.diskbrowser.nufx.NuFX;
 import com.bytezone.diskbrowser.pascal.PascalDisk;
 import com.bytezone.diskbrowser.prodos.ProdosDisk;
-import com.bytezone.diskbrowser.utilities.Binary2;
 import com.bytezone.diskbrowser.utilities.FileFormatException;
-import com.bytezone.diskbrowser.utilities.NuFX;
+import com.bytezone.diskbrowser.utilities.HexFormatter;
 import com.bytezone.diskbrowser.utilities.Utility;
 import com.bytezone.diskbrowser.wizardry.Wizardry4BootDisk;
 import com.bytezone.diskbrowser.wizardry.WizardryScenarioDisk;
@@ -32,6 +34,7 @@ public class DiskFactory
 // -----------------------------------------------------------------------------------//
 {
   private static boolean debug = false;
+
   private static final int DISK_800K = 819200;
   private static final int DISK_143K = 143360;
   private static final int DISK_116K = 116480;
@@ -145,7 +148,7 @@ public class DiskFactory
 
     if ("sdk".equals (suffix)         // NuFX disk
         || "shk".equals (suffix)      // NuFX files or disk
-        || "bxy".equals (suffix))     // NuFX in Binary2
+        || "bxy".equals (suffix))     // NuFX in Bin2
     {
       if (debug)
         System.out.println (" ** sdk/shk/bxy **");
@@ -153,7 +156,11 @@ public class DiskFactory
       {
         nuFX = new NuFX (file.toPath ());
         if (nuFX.getTotalDisks () == 0 && nuFX.getTotalFiles () == 0)
+        {
+          if (debug)
+            System.out.println ("Empty NuFX file");
           return null;
+        }
 
         byte[] diskBuffer = nuFX.getDiskBuffer ();
         if (diskBuffer == null)
@@ -176,14 +183,14 @@ public class DiskFactory
         else
           System.out.println (e.getMessage ());
         System.out.printf ("Error unpacking: %s%n", file.getAbsolutePath ());
-        //        System.out.println (nuFX);
+        // System.out.println (nuFX);
         return null;
       }
     }
-    else if ("bny".equals (suffix))     // Binary2 uncompressed files
+    else if ("bny".equals (suffix) || "bqy".equals (suffix))     // Binary2 uncompressed files
     {
       if (debug)
-        System.out.println (" ** bny **");
+        System.out.println (" ** bny/bqy **");
       try
       {
         binary2 = new Binary2 (file.toPath ());
@@ -201,13 +208,21 @@ public class DiskFactory
       }
       catch (Exception e)
       {
-        //        e.printStackTrace ();
+        // e.printStackTrace ();
         System.out.println (e.getMessage ());
         System.out.printf ("Error unpacking: %s%n", file.getAbsolutePath ());
-        //        System.out.println (binary2);
+        // System.out.println (binary2);
         return null;
       }
     }
+    else if ("bsq".equals (suffix))
+    {
+      if (debug)
+        System.out.println (" ** bsq **");
+      byte[] prefix = getPrefix (file);
+      System.out.println (HexFormatter.format (prefix));
+      String key = "FiLeStArTfIlEsTaRt";
+    }
 
     FormattedDisk disk = null;
     FormattedDisk disk2 = null;
@@ -268,7 +283,7 @@ public class DiskFactory
       }
 
       if (debug)
-        System.out.printf ("  Checking po or dsk hard drive: %,d%n", file.length ());
+        System.out.printf ("Checking po or dsk hard drive: %,d%n", file.length ());
 
       disk = checkHardDisk (file);
       if (disk != null)
@@ -335,9 +350,10 @@ public class DiskFactory
             {
               if (debug)
                 System.out.println ("  --> PRODOS hard disk");
-              return new ProdosDisk (disk800);
+              disk = new ProdosDisk (disk800);
             }
-            disk = new DataDisk (disk800);
+            else
+              disk = new DataDisk (disk800);
           }
           else
           {
@@ -345,11 +361,15 @@ public class DiskFactory
             disk = checkDos (appleDisk256);
             if (disk == null)
               disk = checkProdos (new AppleDisk (wozFile, 35, 8));
+            if (disk == null)
+              disk = checkPascalDisk (new AppleDisk (wozFile, 35, 8));
             if (disk == null)
               disk = new DataDisk (appleDisk256);
           }
         }
 
+        disk.setOriginalPath (originalPath);          // allow Save converted disk...
+
         return disk;
       }
       catch (Exception e)
@@ -408,7 +428,7 @@ public class DiskFactory
 
     if (true)
     {
-      //      long checksum = appleDisk256.getBootChecksum ();
+      // long checksum = appleDisk256.getBootChecksum ();
       long checksum = 0;
 
       if (checksum == 227968344L)       // empty boot sector
@@ -433,7 +453,7 @@ public class DiskFactory
         if (debug)
           System.out.println ("  known DOS checksum : " + checksum);
         disk = checkDos (appleDisk256);
-        //        disk2 = checkProdos (appleDisk512);     // no need for this
+        // disk2 = checkProdos (appleDisk512); // no need for this
         if (disk2 != null && disk != null)      // should be impossible
         {
           if (debug)
@@ -479,11 +499,11 @@ public class DiskFactory
       else if (debug)
         System.out.println ("  unknown checksum : " + checksum);
 
-      //      else if (checksum == 1212926910L || checksum == 1365043894L
-      //          || checksum == 2128073918L)
-      //        disk = checkCPMDisk (file);
+      // else if (checksum == 1212926910L || checksum == 1365043894L
+      // || checksum == 2128073918L)
+      // disk = checkCPMDisk (file);
 
-      //      System.out.println (checksum);
+      // System.out.println (checksum);
 
       if (disk != null)
       {
@@ -572,7 +592,7 @@ public class DiskFactory
   private static FormattedDisk check (FormattedDisk disk)
   // ---------------------------------------------------------------------------------//
   {
-    if (disk.getDisk ()instanceof AppleDisk appleDisk)
+    if (disk.getDisk () instanceof AppleDisk appleDisk)
     {
       if (nuFX != null)
         appleDisk.setNuFX (nuFX);
@@ -597,7 +617,7 @@ public class DiskFactory
         if (debug)
           System.out.println ("  --> DOS");
         DosDisk dosDisk = new DosDisk (disk);
-        //        disk.setDosVersion (dosDisk.getVersion ());
+        // disk.setDosVersion (dosDisk.getVersion ());
 
         return dosDisk;
       }
@@ -666,7 +686,7 @@ public class DiskFactory
   {
     if (debug)
     {
-      System.out.println ("\nChecking Prodos hard disk");
+      System.out.println ("\nChecking Prodos/Pascal hard disk");
       System.out.printf ("Total blocks : %f%n", (float) file.length () / 512);
       System.out.printf ("Total tracks : %f%n", (float) file.length () / 4096);
       System.out.printf ("File length  : %d%n", file.length ());
@@ -690,10 +710,10 @@ public class DiskFactory
         System.out.println ("*** extended ***");     // System Addons.hdv
       }
       AppleDisk disk;
-      //      if (nuFX == null)
+      // if (nuFX == null)
       disk = new AppleDisk (file, tracks, 8);
-      //      else
-      //        disk = new AppleDisk (file, tracks, 8, nuFX);
+      // else
+      // disk = new AppleDisk (file, tracks, 8, nuFX);
 
       if (ProdosDisk.isCorrectFormat (disk))
       {
@@ -701,6 +721,7 @@ public class DiskFactory
           System.out.println ("  --> PRODOS hard disk");
         return new ProdosDisk (disk);
       }
+
       if (PascalDisk.isCorrectFormat (disk, debug))
       {
         if (debug)
@@ -716,7 +737,7 @@ public class DiskFactory
     }
 
     if (debug)
-      System.out.println ("  not a Prodos hard disk\n");
+      System.out.println ("  not a Prodos/Pascal hard disk\n");
 
     return null;
   }
@@ -841,11 +862,16 @@ public class DiskFactory
 
     if (Wizardry4BootDisk.isWizardryIVorV (disk, debug))
     {
+      if (debug)
+        System.out.println ("checking Wizardry IV or V");
+
       String fileName = file.getAbsolutePath ().toLowerCase ();
-      int pos = file.getAbsolutePath ().indexOf ('.');
-      char c = fileName.charAt (pos - 1);
-      //      String suffix = fileName.substring (pos + 1);
-      int requiredDisks = c == '1' ? 6 : c == 'a' ? 10 : 0;
+      int pos = fileName.lastIndexOf ('.');
+      char c = fileName.charAt (pos - 1);                     // '1' (wiz4) or 'a' (wiz5)
+      int requiredDisks = c == '1' ? 7 : c == 'a' ? 10 : 0;
+
+      if (debug)
+        System.out.printf ("Required disks: %d%n", requiredDisks);
 
       if (requiredDisks > 0)
       {
@@ -866,7 +892,7 @@ public class DiskFactory
       }
     }
     if (debug)
-      System.out.println ("Not a Wizardry IV disk");
+      System.out.println ("Not a Wizardry IV or V disk");
 
     PascalDisk pascalDisk = new PascalDisk (disk);
     return pascalDisk;
@@ -876,6 +902,9 @@ public class DiskFactory
   private static boolean collectDataDisks (String fileName, int dotPos, AppleDisk[] disks)
   // ---------------------------------------------------------------------------------//
   {
+    if (debug)
+      System.out.println ("Collecting Wizardry disks");
+
     char c = fileName.charAt (dotPos - 1);
     String suffix = fileName.substring (dotPos + 1);
 
@@ -883,14 +912,16 @@ public class DiskFactory
     {
       String old = new String (c + "." + suffix);
       String rep = new String ((char) (c + i - 1) + "." + suffix);
-
       File f = new File (fileName.replace (old, rep));
+
+      if (debug)
+        System.out.println (f);
+
       if (!f.exists () || !f.isFile ())
         return false;
 
-      AppleDisk dataDisk = new AppleDisk (f, 35, 8);
-      dataDisk.setInterleave (1);
-      disks[i] = dataDisk;
+      disks[i] = new AppleDisk (f, 35, 8);
+      disks[i].setInterleave (1);
     }
 
     return true;
@@ -931,4 +962,22 @@ public class DiskFactory
 
     return null;
   }
+
+  // ---------------------------------------------------------------------------------//
+  private static byte[] getPrefix (File file)
+  // ---------------------------------------------------------------------------------//
+  {
+    byte[] buffer = new byte[1024];
+    try (BufferedInputStream bis = new BufferedInputStream (new FileInputStream (file)))
+    {
+      bis.read (buffer);
+    }
+    catch (IOException e)
+    {
+      e.printStackTrace ();
+      System.exit (1);
+    }
+
+    return buffer;
+  }
 }

src/com/bytezone/diskbrowser/disk/Prefix2mg.java

@@ -51,6 +51,9 @@ public class Prefix2mg
     if (format == 0 && flagsVolume == 0)
       flagsVolume = 254;
 
+    if (length == 0)
+      length = 512 * blocks;
+
     // see /Asimov disks/images/gs/os/prodos16/ProDOS 16v1_3.2mg
     //    System.out.println (this);
   }

src/com/bytezone/diskbrowser/disk/SectorListConverter.java

@@ -17,8 +17,7 @@ public class SectorListConverter
     sectors = new ArrayList<> ();
     sectorText = text;
 
-    String[] blocks = text.split (";");
-    for (String s : blocks)
+    for (String s : text.split (";"))
     {
       int pos = s.indexOf ('-');
       if (pos > 0)

src/com/bytezone/diskbrowser/dos/AbstractCatalogEntry.java

@@ -89,8 +89,8 @@ abstract class AbstractCatalogEntry implements AppleFileSource
       lastModified = Utility.getDateTime (entryBuffer, 0x1B);
 
     // CATALOG command only formats the LO byte - see Beneath Apple DOS pp4-6
-    String base = String.format ("%s%s %03d ", locked ? "*" : " ", getFileType (),
-        reportedSize & 0xFF);
+    String base =
+        String.format ("%s%s %03d ", locked ? "*" : " ", getFileType (), reportedSize & 0xFF);
     catalogName = getName (base, entryBuffer);
     displayName = getDisplayName (entryBuffer);
   }
@@ -235,18 +235,28 @@ abstract class AbstractCatalogEntry implements AppleFileSource
 
         case IntegerBasic:
           reportedLength = Utility.getShort (buffer, 0);
-          exactBuffer = new byte[reportedLength];
-          System.arraycopy (buffer, 2, exactBuffer, 0, reportedLength);
-          appleFile = new IntegerBasicProgram (name, exactBuffer);
+          if (reportedLength > 0)
+          {
+            exactBuffer = new byte[reportedLength];
+            System.arraycopy (buffer, 2, exactBuffer, 0, reportedLength);
+            appleFile = new IntegerBasicProgram (name, exactBuffer);
+          }
+          else
+            appleFile = new DefaultAppleFile (name, buffer);
           break;
 
         case ApplesoftBasic:
           reportedLength = Utility.getShort (buffer, 0);
-          exactBuffer = new byte[reportedLength];
-          if (reportedLength > buffer.length)
-            reportedLength = buffer.length - 2;
-          System.arraycopy (buffer, 2, exactBuffer, 0, reportedLength);
-          appleFile = new ApplesoftBasicProgram (name, exactBuffer);
+          if (reportedLength > 0)
+          {
+            exactBuffer = new byte[reportedLength];
+            if (reportedLength > buffer.length)
+              reportedLength = buffer.length - 2;
+            System.arraycopy (buffer, 2, exactBuffer, 0, reportedLength);
+            appleFile = new ApplesoftBasicProgram (name, exactBuffer);
+          }
+          else
+            appleFile = new DefaultAppleFile (name, buffer);
           break;
 
         case Binary:                        // binary file
@@ -256,8 +266,8 @@ abstract class AbstractCatalogEntry implements AppleFileSource
           reportedLength = Utility.getShort (buffer, 2);
           if (reportedLength == 0)
           {
-            System.out.println (name.trim () + " reported length : 0 - reverting to "
-                + (buffer.length - 4));
+            System.out.println (
+                name.trim () + " reported length : 0 - reverting to " + (buffer.length - 4));
             reportedLength = buffer.length - 4;
           }
 
@@ -268,9 +278,8 @@ abstract class AbstractCatalogEntry implements AppleFileSource
             exactBuffer = new byte[buffer.length - 4];  // reported length is too long
           System.arraycopy (buffer, 4, exactBuffer, 0, exactBuffer.length);
 
-          if ((name.endsWith (".FONT") || name.endsWith (" FONT")
-              || name.endsWith (".SET") || name.startsWith ("ASCII."))
-              && FontFile.isFont (exactBuffer))
+          if ((name.endsWith (".FONT") || name.endsWith (" FONT") || name.endsWith (".SET")
+              || name.startsWith ("ASCII.")) && FontFile.isFont (exactBuffer))
             appleFile = new FontFile (name, exactBuffer, loadAddress);
           else if (name.endsWith (".MW"))
             appleFile = new MagicWindowText (name, exactBuffer);
@@ -305,8 +314,7 @@ abstract class AbstractCatalogEntry implements AppleFileSource
               appleFile = new AssemblerProgram (name, exactBuffer, loadAddress);
           }
           else if (reportedLength == 0x240          //
-              && (loadAddress == 0x5800 || loadAddress == 0x6000
-                  || loadAddress == 0x7800))
+              && (loadAddress == 0x5800 || loadAddress == 0x6000 || loadAddress == 0x7800))
             appleFile = new PrintShopGraphic (name, exactBuffer);
           else if (isRunCommand (exactBuffer))
           {
@@ -319,8 +327,8 @@ abstract class AbstractCatalogEntry implements AppleFileSource
           {
             appleFile = new AssemblerProgram (name, exactBuffer, loadAddress);
             if ((exactBuffer.length + 4) < buffer.length)
-              ((AssemblerProgram) appleFile).setExtraBuffer (buffer,
-                  exactBuffer.length + 4, buffer.length - (exactBuffer.length + 4));
+              ((AssemblerProgram) appleFile).setExtraBuffer (buffer, exactBuffer.length + 4,
+                  buffer.length - (exactBuffer.length + 4));
           }
           break;
 
@@ -362,8 +370,8 @@ abstract class AbstractCatalogEntry implements AppleFileSource
     int reportedLength = Utility.getShort (buffer, 2);
     if (reportedLength == 0)
     {
-      System.out.println (
-          name.trim () + " reported length : 0 - reverting to " + (buffer.length - 4));
+      System.out
+          .println (name.trim () + " reported length : 0 - reverting to " + (buffer.length - 4));
       reportedLength = buffer.length - 4;
     }
 

src/com/bytezone/diskbrowser/dos/DosDisk.java

@@ -326,6 +326,8 @@ public class DosDisk extends AbstractFormattedDisk
         return "4.2";
       case 0x43:
         return "4.3";
+      case 0x45:
+        return "4.5";
       default:
         return "??";
     }
@@ -376,7 +378,7 @@ public class DosDisk extends AbstractFormattedDisk
     int version = buffer[3] & 0xFF;
     if (debug)
       System.out.printf ("Version: %02X%n", buffer[3]);
-    if (version == 0 || (version > 0x43 && version != 0xFF))
+    if (version == 0 || (version > 0x45 && version != 0xFF))
     {
       if (debug)
         System.out.printf ("Bad version : %02X%n", version);

src/com/bytezone/diskbrowser/duplicates/DisksWindow.java

@@ -120,7 +120,7 @@ public class DisksWindow extends JFrame
       }
     });
 
-    scrollPane.setPreferredSize (new Dimension (1200, 700));
+    scrollPane.setPreferredSize (new Dimension (1200, 693));
     setDefaultCloseOperation (HIDE_ON_CLOSE);
 
     deleteWindow = new DeleteWindow (rootFolderData);

src/com/bytezone/diskbrowser/duplicates/RootFolderData.java

@@ -8,6 +8,8 @@ import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -20,11 +22,10 @@ import javax.swing.JFrame;
 import javax.swing.JPanel;
 
 import com.bytezone.diskbrowser.gui.DuplicateAction.DiskTableSelectionListener;
-import com.bytezone.diskbrowser.gui.RootDirectoryChangeListener;
 import com.bytezone.diskbrowser.utilities.Utility;
 
 // -----------------------------------------------------------------------------------//
-public class RootFolderData implements RootDirectoryChangeListener
+public class RootFolderData implements PropertyChangeListener
 // -----------------------------------------------------------------------------------//
 {
   private static final String header =
@@ -177,38 +178,35 @@ public class RootFolderData implements RootDirectoryChangeListener
   }
 
   // ---------------------------------------------------------------------------------//
-  public void incrementType (File file, String filename)
+  public void incrementType (File file, String fileName)
   // ---------------------------------------------------------------------------------//
   {
-    int pos = Utility.getSuffixNo (filename);
+    int pos = Utility.getSuffixNo (fileName);
     if (pos >= 0)
     {
-      int cmp = 0;
-      if (filename.endsWith (".gz"))
-        cmp = 1;
-      else if (filename.endsWith (".zip"))
-        cmp = 2;
+      int cmp = fileName.endsWith (".zip") ? 2 : fileName.endsWith (".gz") ? 1 : 0;
+
       typeTotals[cmp][pos]++;
       typeTotals[3][pos]++;
       ++totalDisks;
     }
     else
-      System.out.println ("no suffix: " + filename);
+      System.out.println ("no suffix: " + fileName);
 
-    checkDuplicates (file, filename);
+    checkDuplicates (file, fileName);
   }
 
   // ---------------------------------------------------------------------------------//
-  private void checkDuplicates (File file, String filename)
+  private void checkDuplicates (File file, String fileName)
   // ---------------------------------------------------------------------------------//
   {
     String rootName = file.getAbsolutePath ().substring (rootFolderNameLength);
-    DiskDetails diskDetails = new DiskDetails (file, rootName, filename, doChecksums);
+    DiskDetails diskDetails = new DiskDetails (file, rootName, fileName, doChecksums);
 
-    if (fileNameMap.containsKey (filename))
-      fileNameMap.get (filename).addDuplicateName (diskDetails);
+    if (fileNameMap.containsKey (fileName))
+      fileNameMap.get (fileName).addDuplicateName (diskDetails);
     else
-      fileNameMap.put (filename, diskDetails);
+      fileNameMap.put (fileName, diskDetails);
 
     if (doChecksums)
     {
@@ -277,8 +275,7 @@ public class RootFolderData implements RootDirectoryChangeListener
   }
 
   // ---------------------------------------------------------------------------------//
-  @Override
-  public void rootDirectoryChanged (File oldRootFolder, File newRootFolder)
+  private void rootDirectoryChanged (File oldRootFolder, File newRootFolder)
   // ---------------------------------------------------------------------------------//
   {
     rootFolder = newRootFolder;
@@ -286,6 +283,15 @@ public class RootFolderData implements RootDirectoryChangeListener
     disksWindow = null;           // force a recount
   }
 
+  // ---------------------------------------------------------------------------------//
+  @Override
+  public void propertyChange (PropertyChangeEvent evt)
+  // ---------------------------------------------------------------------------------//
+  {
+    if (evt.getPropertyName ().equals ("RootDirectory"))
+      rootDirectoryChanged ((File) evt.getOldValue (), (File) evt.getNewValue ());
+  }
+
   // ---------------------------------------------------------------------------------//
   @Override
   public String toString ()
@@ -326,16 +332,16 @@ public class RootFolderData implements RootDirectoryChangeListener
       int grandTotal[] = new int[4];
 
       for (int i = 0; i < typeTotals[0].length; i++)
-      {
-        line = String.format ("%14.14s  %,7d  %,7d  %,7d  %,7d",
-            Utility.getSuffix (i) + " ...........", typeTotals[0][i], typeTotals[1][i],
-            typeTotals[2][i], typeTotals[3][i]);
-        g.drawString (line, x, y);
-        for (int j = 0; j < typeTotals.length; j++)
-          grandTotal[j] += typeTotals[j][i];
-
-        y += lineHeight;
-      }
+        if (typeTotals[3][i] > 0)
+        {
+          line = String.format ("%14.14s  %,7d  %,7d  %,7d  %,7d",
+              Utility.getSuffix (i) + " ...........", typeTotals[0][i], typeTotals[1][i],
+              typeTotals[2][i], typeTotals[3][i]);
+          g.drawString (line, x, y);
+          for (int j = 0; j < typeTotals.length; j++)
+            grandTotal[j] += typeTotals[j][i];
+          y += lineHeight;
+        }
 
       line = String.format ("Total           %,7d  %,7d  %,7d  %,7d%n%n", grandTotal[0],
           grandTotal[1], grandTotal[2], grandTotal[3]);

src/com/bytezone/diskbrowser/gui/AbstractSaveAction.java

@@ -1,6 +1,13 @@
 package com.bytezone.diskbrowser.gui;
 
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.FileAlreadyExistsException;
+import java.nio.file.Files;
+import java.nio.file.StandardOpenOption;
+
 import javax.swing.JFileChooser;
+import javax.swing.JOptionPane;
 
 import com.bytezone.diskbrowser.utilities.DefaultAction;
 
@@ -8,13 +15,44 @@ import com.bytezone.diskbrowser.utilities.DefaultAction;
 public abstract class AbstractSaveAction extends DefaultAction
 // -----------------------------------------------------------------------------------//
 {
-  JFileChooser fileChooser;
+  protected JFileChooser fileChooser = new JFileChooser ();
 
   // ---------------------------------------------------------------------------------//
-  public AbstractSaveAction (String text, String tip)
+  public AbstractSaveAction (String menuText, String tip, String dialogTitle)
   // ---------------------------------------------------------------------------------//
   {
-    super (text, tip);
+    super (menuText, tip);
+
+    fileChooser.setDialogTitle (dialogTitle);
   }
 
+  // ---------------------------------------------------------------------------------//
+  void setSelectedFile (File file)
+  // ---------------------------------------------------------------------------------//
+  {
+    fileChooser.setSelectedFile (file);
+  }
+
+  // ---------------------------------------------------------------------------------//
+  void saveBuffer (byte[] buffer)
+  // ---------------------------------------------------------------------------------//
+  {
+    File file = fileChooser.getSelectedFile ();
+    try
+    {
+      Files.write (file.toPath (), buffer, StandardOpenOption.CREATE_NEW);
+      JOptionPane.showMessageDialog (null, String.format ("File %s saved", file.getName ()));
+    }
+    catch (FileAlreadyExistsException e)
+    {
+      JOptionPane.showMessageDialog (null, "File " + file.getName () + " already exists", "Failed",
+          JOptionPane.ERROR_MESSAGE);
+    }
+    catch (IOException e)
+    {
+      e.printStackTrace ();
+      JOptionPane.showMessageDialog (null, "File failed to save - " + e.getMessage (), "Failed",
+          JOptionPane.ERROR_MESSAGE);
+    }
+  }
 }

src/com/bytezone/diskbrowser/gui/AnimationWorker.java

@@ -0,0 +1,62 @@
+package com.bytezone.diskbrowser.gui;
+
+import java.util.List;
+
+import javax.swing.SwingWorker;
+
+import com.bytezone.diskbrowser.applefile.SHRPictureFile2;
+
+// -----------------------------------------------------------------------------------//
+public class AnimationWorker extends SwingWorker<Void, Integer>
+// -----------------------------------------------------------------------------------//
+{
+  volatile boolean running;
+  SHRPictureFile2 image;
+  OutputPanel owner;
+
+  // ---------------------------------------------------------------------------------//
+  public AnimationWorker (OutputPanel owner, SHRPictureFile2 image)
+  // ---------------------------------------------------------------------------------//
+  {
+    assert image.isAnimation ();
+    this.image = image;
+    this.owner = owner;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  public void cancel ()
+  // ---------------------------------------------------------------------------------//
+  {
+    running = false;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  @Override
+  protected Void doInBackground () throws Exception
+  // ---------------------------------------------------------------------------------//
+  {
+    running = true;
+    try
+    {
+      while (running)
+      {
+        Thread.sleep (image.getDelay ());
+        publish (0);
+      }
+    }
+    catch (InterruptedException e)
+    {
+      e.printStackTrace ();
+    }
+    return null;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  @Override
+  protected void process (List<Integer> chunks)
+  // ---------------------------------------------------------------------------------//
+  {
+    image.nextFrame ();
+    owner.update ();
+  }
+}

src/com/bytezone/diskbrowser/gui/AppleDiskTab.java

@@ -158,9 +158,9 @@ class AppleDiskTab extends AbstractTab
 
     // check for multi-volume disk (only search the current branch)
     FormattedDisk fd = ((AppleFileSource) rootNode.getUserObject ()).getFormattedDisk ();
-    if (fd instanceof HybridDisk)
+    if (fd instanceof HybridDisk hd)
     {
-      int volume = ((HybridDisk) fd).getCurrentDiskNo ();
+      int volume = hd.getCurrentDiskNo ();
       rootNode = (DefaultMutableTreeNode) rootNode.getChildAt (volume);
     }
 
@@ -169,8 +169,8 @@ class AppleDiskTab extends AbstractTab
     {
       DefaultMutableTreeNode node = (DefaultMutableTreeNode) children.nextElement ();
       Object userObject = node.getUserObject ();
-      if (userObject instanceof AppleFileSource
-          && nodeName.equals (((AppleFileSource) userObject).getUniqueName ()))
+      if (userObject instanceof AppleFileSource afs
+          && nodeName.equals (afs.getUniqueName ()))
         return node;
     }
     return null;

src/com/bytezone/diskbrowser/gui/CatalogPanel.java

@@ -10,6 +10,8 @@ import java.awt.Dimension;
 import java.awt.Font;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.EventObject;
@@ -36,9 +38,8 @@ import com.bytezone.diskbrowser.gui.RedoHandler.RedoListener;
 import com.bytezone.diskbrowser.gui.TreeBuilder.FileNode;
 
 // -----------------------------------------------------------------------------------//
-class CatalogPanel extends JTabbedPane
-    implements RedoListener, SectorSelectionListener, QuitListener, FontChangeListener,
-    RootDirectoryChangeListener, DiskTableSelectionListener
+class CatalogPanel extends JTabbedPane implements RedoListener, SectorSelectionListener,
+    QuitListener, FontChangeListener, DiskTableSelectionListener, PropertyChangeListener
 // -----------------------------------------------------------------------------------//
 {
   private static final String prefsLastDiskUsed = "Last disk used";
@@ -66,8 +67,7 @@ class CatalogPanel extends JTabbedPane
   }
 
   // ---------------------------------------------------------------------------------//
-  @Override
-  public void rootDirectoryChanged (File oldRootFolder, File newRootFolder)
+  private void rootDirectoryChanged (File oldRootFolder, File newRootFolder)
   // ---------------------------------------------------------------------------------//
   {
     rootFolder = newRootFolder;
@@ -82,6 +82,18 @@ class CatalogPanel extends JTabbedPane
     setSelectedIndex (0);
   }
 
+  // -------------------------------------------------------------------------------//
+  @Override
+  public void propertyChange (PropertyChangeEvent evt)
+  // -------------------------------------------------------------------------------//
+  {
+    if (evt.getPropertyName ().equals ("RootDirectory"))
+      rootDirectoryChanged ((File) evt.getOldValue (), (File) evt.getNewValue ());
+    // else
+    // closeCurrentTab ();
+    // System.out.println (evt.getPropertyName ());
+  }
+
   // ---------------------------------------------------------------------------------//
   private void insertFileSystemTab (DiskSelectedEvent diskEvent)
   // ---------------------------------------------------------------------------------//
@@ -146,11 +158,10 @@ class CatalogPanel extends JTabbedPane
     tab.refresh ();
 
     // Any newly created disk needs to appear in the FileSystemTab's tree
-    if (tab instanceof AppleDiskTab)
-      fileTab.replaceDisk (((AppleDiskTab) tab).disk);
+    if (tab instanceof AppleDiskTab appleDiskTab)
+      fileTab.replaceDisk (appleDiskTab.disk);
   }
 
-  // called from CloseTabAction
   // ---------------------------------------------------------------------------------//
   public void closeCurrentTab ()
   // ---------------------------------------------------------------------------------//
@@ -174,10 +185,7 @@ class CatalogPanel extends JTabbedPane
   // ---------------------------------------------------------------------------------//
   {
     Tab tab = (Tab) getSelectedComponent ();
-    if (diskTabs.size () > 1 && tab instanceof AppleDiskTab)
-      closeTabAction.setEnabled (true);
-    else
-      closeTabAction.setEnabled (false);
+    closeTabAction.setEnabled (diskTabs.size () > 1 && tab instanceof AppleDiskTab);
   }
 
   // ---------------------------------------------------------------------------------//
@@ -213,8 +221,8 @@ class CatalogPanel extends JTabbedPane
 
         FormattedDisk fd = ((AppleDiskTab) selectedTab).disk;
         prefs.put (prefsLastDiskUsed, fd.getAbsolutePath ());
-        if (fd instanceof HybridDisk)
-          prefs.putInt (prefsLastDosUsed, ((HybridDisk) fd).getCurrentDiskNo ());
+        if (fd instanceof HybridDisk hybridDisk)
+          prefs.putInt (prefsLastDosUsed, hybridDisk.getCurrentDiskNo ());
         else
           prefs.putInt (prefsLastDosUsed, -1);
 
@@ -223,16 +231,16 @@ class CatalogPanel extends JTabbedPane
         {
           EventObject event = redoEvent.value;
 
-          if (event instanceof FileSelectedEvent)
+          if (event instanceof FileSelectedEvent fileSelectedEvent)
           {
-            AppleFileSource afs = ((FileSelectedEvent) event).appleFileSource;
+            AppleFileSource afs = fileSelectedEvent.appleFileSource;
             prefs.put (prefsLastFileUsed, afs == null ? "" : afs.getUniqueName ());
             prefs.put (prefsLastSectorsUsed, "");
           }
-          else if (event instanceof SectorSelectedEvent)
+          else if (event instanceof SectorSelectedEvent sectorSelectedEvent)
           {
             prefs.put (prefsLastFileUsed, "");
-            prefs.put (prefsLastSectorsUsed, ((SectorSelectedEvent) event).toText ());
+            prefs.put (prefsLastSectorsUsed, sectorSelectedEvent.toText ());
           }
         }
       }
@@ -265,8 +273,8 @@ class CatalogPanel extends JTabbedPane
       if (diskEvent != null)
       {
         fd1 = diskEvent.getFormattedDisk ();
-        if (lastDosUsed >= 0 && fd1 instanceof HybridDisk)
-          ((HybridDisk) fd1).setCurrentDiskNo (lastDosUsed);
+        if (lastDosUsed >= 0 && fd1 instanceof HybridDisk hybridDisk)
+          hybridDisk.setCurrentDiskNo (lastDosUsed);
       }
     }
     else
@@ -321,6 +329,14 @@ class CatalogPanel extends JTabbedPane
     selector.addDiskSelectionListener (listener);
   }
 
+  // ---------------------------------------------------------------------------------//
+  public void addDiskSelectionListener (DiskSelectionListener... listeners)
+  // ---------------------------------------------------------------------------------//
+  {
+    for (DiskSelectionListener diskSelectionListener : listeners)
+      selector.addDiskSelectionListener (diskSelectionListener);
+  }
+
   // Pass through to DiskSelector
   // ---------------------------------------------------------------------------------//
   public void addFileSelectionListener (FileSelectionListener listener)
@@ -329,6 +345,14 @@ class CatalogPanel extends JTabbedPane
     selector.addFileSelectionListener (listener);
   }
 
+  // ---------------------------------------------------------------------------------//
+  public void addFileSelectionListener (FileSelectionListener... listeners)
+  // ---------------------------------------------------------------------------------//
+  {
+    for (FileSelectionListener fileSelectionListener : listeners)
+      selector.addFileSelectionListener (fileSelectionListener);
+  }
+
   // Pass through to DiskSelector
   // ---------------------------------------------------------------------------------//
   public void addFileNodeSelectionListener (FileNodeSelectionListener listener)
@@ -337,6 +361,14 @@ class CatalogPanel extends JTabbedPane
     selector.addFileNodeSelectionListener (listener);
   }
 
+  // ---------------------------------------------------------------------------------//
+  public void addFileNodeSelectionListener (FileNodeSelectionListener... listeners)
+  // ---------------------------------------------------------------------------------//
+  {
+    for (FileNodeSelectionListener fileNodeSelectionListener : listeners)
+      selector.addFileNodeSelectionListener (fileNodeSelectionListener);
+  }
+
   // ---------------------------------------------------------------------------------//
   private class TabChangeListener implements ChangeListener
   // ---------------------------------------------------------------------------------//
@@ -367,13 +399,13 @@ class CatalogPanel extends JTabbedPane
     {
       case "DiskEvent":
       case "FileNodeEvent":
-        if (tab instanceof FileSystemTab)
-          ((FileSystemTab) tab).redoEvent (event);
+        if (tab instanceof FileSystemTab fileSystemTab)
+          fileSystemTab.redoEvent (event);
         break;
 
       case "FileEvent":
-        if (tab instanceof AppleDiskTab)
-          ((AppleDiskTab) tab).redoEvent (event);
+        if (tab instanceof AppleDiskTab appleDiskTab)
+          appleDiskTab.redoEvent (event);
         break;
 
       case "SectorEvent":
@@ -394,8 +426,8 @@ class CatalogPanel extends JTabbedPane
   {
     // user has clicked in the DiskLayoutPanel, so turn off any current file selection
     Tab tab = (Tab) getSelectedComponent ();
-    if (tab instanceof AppleDiskTab)
-      ((AppleDiskTab) tab).tree.setSelectionPath (null);
+    if (tab instanceof AppleDiskTab appleDiskTab)
+      appleDiskTab.tree.setSelectionPath (null);
   }
 
   // ---------------------------------------------------------------------------------//
@@ -430,7 +462,7 @@ class CatalogPanel extends JTabbedPane
       FileNode node = (FileNode) selectedNode.getUserObject ();
       if (node.file.isDirectory ())
       {
-        //        lister.catalogLister.setNode (selectedNode);
+        // lister.catalogLister.setNode (selectedNode);
       }
       else if (e.getClickCount () == 2)
         addDiskPanel (node.getFormattedDisk (), true);

src/com/bytezone/diskbrowser/gui/CloseTabAction.java

@@ -19,6 +19,7 @@ public class CloseTabAction extends AbstractAction
   // ---------------------------------------------------------------------------------//
   {
     super ("Close Tab");
+
     putValue (Action.SHORT_DESCRIPTION, "Close the current disk tab");
     //    putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke ("ctrl W"));
     int mask = Toolkit.getDefaultToolkit ().getMenuShortcutKeyMaskEx ();

src/com/bytezone/diskbrowser/gui/ColourQuirksAction.java

@@ -12,17 +12,15 @@ import javax.swing.KeyStroke;
 public class ColourQuirksAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
-  private final DataPanel owner;
-
   // ---------------------------------------------------------------------------------//
-  public ColourQuirksAction (DataPanel owner)
+  public ColourQuirksAction ()
   // ---------------------------------------------------------------------------------//
   {
     super ("Smear HGR");
+
     putValue (Action.SHORT_DESCRIPTION, "Display pixels like a TV screen");
     putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke ("alt Q"));
     putValue (Action.MNEMONIC_KEY, KeyEvent.VK_Q);
-    this.owner = owner;
   }
 
   // ---------------------------------------------------------------------------------//
@@ -30,6 +28,7 @@ public class ColourQuirksAction extends AbstractAction
   public void actionPerformed (ActionEvent e)
   // ---------------------------------------------------------------------------------//
   {
-    owner.setColourQuirks (((JMenuItem) e.getSource ()).isSelected ());
+    firePropertyChange (e.getActionCommand (), null,
+        ((JMenuItem) e.getSource ()).isSelected ());
   }
 }

src/com/bytezone/diskbrowser/gui/DebuggingAction.java

@@ -11,16 +11,14 @@ import javax.swing.KeyStroke;
 public class DebuggingAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
-  private final DataPanel owner;
-
   // ---------------------------------------------------------------------------------//
-  public DebuggingAction (DataPanel owner)
+  public DebuggingAction ()
   // ---------------------------------------------------------------------------------//
   {
     super ("Debugging");
+
     putValue (Action.SHORT_DESCRIPTION, "Show debugging information");
     putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke ("meta D"));
-    this.owner = owner;
   }
 
   // ---------------------------------------------------------------------------------//
@@ -28,6 +26,7 @@ public class DebuggingAction extends AbstractAction
   public void actionPerformed (ActionEvent e)
   // ---------------------------------------------------------------------------------//
   {
-    owner.setDebug (((JMenuItem) e.getSource ()).isSelected ());
+    firePropertyChange (e.getActionCommand (), null,
+        ((JMenuItem) e.getSource ()).isSelected ());
   }
 }

src/com/bytezone/diskbrowser/gui/DiskBrowser.java

@@ -6,6 +6,8 @@ import java.awt.Desktop;
 import java.awt.EventQueue;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.prefs.Preferences;
@@ -22,7 +24,8 @@ import javax.swing.UIManager;
 import com.bytezone.diskbrowser.duplicates.RootFolderData;
 
 // -----------------------------------------------------------------------------------//
-public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitListener
+public class DiskBrowser extends JFrame
+    implements DiskSelectionListener, QuitListener, PropertyChangeListener
 // -----------------------------------------------------------------------------------//
 {
   private static String[] args;
@@ -35,13 +38,21 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
 
   private final RootFolderData rootFolderData = new RootFolderData ();
 
+  private final List<QuitListener> quitListeners = new ArrayList<> ();
+
+  private final JPanel catalogBorderPanel;
+  private final JPanel layoutBorderPanel;
+
+  private final HideCatalogAction hideCatalogAction = new HideCatalogAction ();
+  private final HideLayoutAction hideLayoutAction = new HideLayoutAction ();
+
   // ---------------------------------------------------------------------------------//
   public DiskBrowser ()
   // ---------------------------------------------------------------------------------//
   {
     super (windowTitle);
 
-    UIManager.put ("TabbedPane.foreground", Color.BLACK);   // java bug fix
+    // UIManager.put ("TabbedPane.foreground", Color.BLACK); // java bug fix
 
     if (args.length > 0 && "-reset".equals (args[0]))
       new WindowState (prefs).clear ();
@@ -59,65 +70,56 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
 
     // create and add the left-hand catalog panel
     CatalogPanel catalogPanel = new CatalogPanel (redoHandler);
-    JPanel catalogBorderPanel = addPanel (catalogPanel, "Catalog", BorderLayout.WEST);
+    catalogBorderPanel = addPanel (catalogPanel, "Catalog", BorderLayout.WEST);
 
     // create and add the centre output panel
-    DataPanel dataPanel = new DataPanel (menuHandler);
+    OutputPanel dataPanel = new OutputPanel (menuHandler);
     addPanel (dataPanel, "Output", BorderLayout.CENTER);
 
     // create and add the right-hand disk layout panel
     DiskLayoutPanel diskLayoutPanel = new DiskLayoutPanel ();
-    JPanel layoutBorderPanel =
-        addPanel (diskLayoutPanel, "Disk layout", BorderLayout.EAST);
+    layoutBorderPanel = addPanel (diskLayoutPanel, "Disk layout", BorderLayout.EAST);
 
     // create actions
     DuplicateAction duplicateAction = new DuplicateAction (rootFolderData);
     RootDirectoryAction rootDirectoryAction = new RootDirectoryAction ();
 
     RefreshTreeAction refreshTreeAction = new RefreshTreeAction (catalogPanel);
-    //    PreferencesAction preferencesAction = new PreferencesAction (this, prefs);
+    // PreferencesAction preferencesAction = new PreferencesAction (this, prefs);
     AbstractAction print = new PrintAction (dataPanel);
-    //    AboutAction aboutAction = new AboutAction ();
-    HideCatalogAction hideCatalogAction =
-        new HideCatalogAction (this, catalogBorderPanel);
-    HideLayoutAction hideLayoutAction = new HideLayoutAction (this, layoutBorderPanel);
-    ShowFreeSectorsAction showFreeAction =
-        new ShowFreeSectorsAction (menuHandler, diskLayoutPanel);
+    // AboutAction aboutAction = new AboutAction ();
+    // HideLayoutAction hideLayoutAction = new HideLayoutAction (this, layoutBorderPanel);
+    ShowFreeSectorsAction showFreeAction = new ShowFreeSectorsAction ();
+
     CloseTabAction closeTabAction = new CloseTabAction (catalogPanel);
+    // closeTabAction.addPropertyChangeListener (catalogPanel);
+
+    hideCatalogAction.addPropertyChangeListener (this);
+    hideLayoutAction.addPropertyChangeListener (this);
 
     // add action buttons to toolbar
     toolBar.add (rootDirectoryAction);
     toolBar.add (refreshTreeAction);
-    //    toolBar.add (preferencesAction);
+    // toolBar.add (preferencesAction);
     toolBar.add (duplicateAction);
     toolBar.add (print);
-    //    toolBar.add (aboutAction);
+    // toolBar.add (aboutAction);
 
     // set the listeners
-    rootDirectoryAction.addListener (rootFolderData);
-    rootDirectoryAction.addListener (catalogPanel);
-    rootDirectoryAction.addListener (duplicateAction);
+    rootDirectoryAction.addPropertyChangeListener (rootFolderData);
+    rootDirectoryAction.addPropertyChangeListener (catalogPanel);
+    rootDirectoryAction.addPropertyChangeListener (duplicateAction);
 
-    catalogPanel.addDiskSelectionListener (this);
-    catalogPanel.addDiskSelectionListener (dataPanel);
-    catalogPanel.addDiskSelectionListener (diskLayoutPanel);
-    catalogPanel.addDiskSelectionListener (redoHandler);
-    catalogPanel.addDiskSelectionListener (menuHandler);
-    catalogPanel.addDiskSelectionListener (menuHandler.saveDiskAction);
+    catalogPanel.addDiskSelectionListener (this, dataPanel, diskLayoutPanel, redoHandler,
+        menuHandler, menuHandler.saveDiskAction);
 
-    catalogPanel.addFileSelectionListener (dataPanel);
-    catalogPanel.addFileSelectionListener (diskLayoutPanel);
-    catalogPanel.addFileSelectionListener (redoHandler);
-    catalogPanel.addFileSelectionListener (menuHandler);
-    catalogPanel.addFileSelectionListener (menuHandler.saveFileAction);
+    catalogPanel.addFileSelectionListener (dataPanel, diskLayoutPanel, redoHandler, menuHandler,
+        menuHandler.saveFileAction);
 
-    catalogPanel.addFileNodeSelectionListener (dataPanel);
-    catalogPanel.addFileNodeSelectionListener (redoHandler);
+    catalogPanel.addFileNodeSelectionListener (dataPanel, redoHandler);
 
-    diskLayoutPanel.addSectorSelectionListener (dataPanel);
-    diskLayoutPanel.addSectorSelectionListener (redoHandler);
-    diskLayoutPanel.addSectorSelectionListener (catalogPanel);
-    diskLayoutPanel.addSectorSelectionListener (menuHandler.saveSectorsAction);
+    diskLayoutPanel.addSectorSelectionListener (dataPanel, redoHandler, catalogPanel,
+        menuHandler.saveSectorsAction);
 
     duplicateAction.addTableSelectionListener (catalogPanel);
 
@@ -130,12 +132,10 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
 
     menuHandler.fontAction.addFontChangeListener (dataPanel);
     menuHandler.fontAction.addFontChangeListener (catalogPanel);
-    //    menuHandler.fontAction.addFontChangeListener (diskLayoutPanel);
+    // menuHandler.fontAction.addFontChangeListener (diskLayoutPanel);
 
     // set the MenuItem Actions
     menuHandler.printItem.setAction (print);
-    //    menuHandler.addHelpMenuAction (preferencesAction, "prefs");
-    //    menuHandler.addHelpMenuAction (aboutAction, "about");
     menuHandler.refreshTreeItem.setAction (refreshTreeAction);
     menuHandler.rootItem.setAction (rootDirectoryAction);
     menuHandler.showCatalogItem.setAction (hideCatalogAction);
@@ -144,10 +144,12 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
     menuHandler.duplicateItem.setAction (duplicateAction);
     menuHandler.closeTabItem.setAction (closeTabAction);
 
-    addQuitListener (rootDirectoryAction);
-    addQuitListener (menuHandler);
-    addQuitListener (catalogPanel);
-    addQuitListener (this);
+    showFreeAction.addPropertyChangeListener (diskLayoutPanel);
+
+    quitListeners.add (rootDirectoryAction);
+    quitListeners.add (menuHandler);
+    quitListeners.add (catalogPanel);
+    quitListeners.add (this);
 
     if (Desktop.isDesktopSupported ())
     {
@@ -158,14 +160,14 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
             "Author - Denis Molony\nGitHub - https://github.com/dmolony/DiskBrowser",
             "About DiskBrowser", JOptionPane.INFORMATION_MESSAGE));
 
-      if (desktop.isSupported (Desktop.Action.APP_PREFERENCES) && false)
-        desktop.setPreferencesHandler (
-            e -> JOptionPane.showMessageDialog (null, "Preferences dialog"));
+      //      if (desktop.isSupported (Desktop.Action.APP_PREFERENCES) && false)
+      //        desktop.setPreferencesHandler (
+      //            e -> JOptionPane.showMessageDialog (null, "Preferences dialog"));
 
       if (desktop.isSupported (Desktop.Action.APP_QUIT_HANDLER))
-        desktop.setQuitHandler ( (e, r) -> fireQuitEvent ());
-      //      else
-      setQuitHandler ();
+        desktop.setQuitHandler ( (e, r) -> fireQuitEvent ());   // needed for cmd-Q
+      // else
+      setQuitHandler ();        // needed for the close button
     }
     else
     {
@@ -185,9 +187,9 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
 
     // Remove the two optional panels if they were previously hidden
     if (!menuHandler.showLayoutItem.isSelected ())
-      hideLayoutAction.set (false);
+      setLayoutPanel (false);
     if (!menuHandler.showCatalogItem.isSelected ())
-      hideCatalogAction.set (false);
+      setCatalogPanel (false);
 
     menuHandler.addBasicPreferencesListener (dataPanel);
     menuHandler.addAssemblerPreferencesListener (dataPanel);
@@ -209,7 +211,6 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
         fireQuitEvent ();
       }
     });
-
   }
 
   // ---------------------------------------------------------------------------------//
@@ -224,13 +225,47 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
     return panel;
   }
 
+  // ---------------------------------------------------------------------------------//
+  @Override
+  public void propertyChange (PropertyChangeEvent evt)
+  // ---------------------------------------------------------------------------------//
+  {
+    if (evt.getSource () == hideCatalogAction)
+      setCatalogPanel ((boolean) evt.getNewValue ());
+    else if (evt.getSource () == hideLayoutAction)
+      setLayoutPanel ((boolean) evt.getNewValue ());
+  }
+
+  // ---------------------------------------------------------------------------------//
+  private void setCatalogPanel (boolean show)
+  // ---------------------------------------------------------------------------------//
+  {
+    if (show)
+      add (catalogBorderPanel, BorderLayout.WEST);
+    else
+      remove (catalogBorderPanel);
+
+    validate ();
+  }
+
+  // ---------------------------------------------------------------------------------//
+  private void setLayoutPanel (boolean show)
+  // ---------------------------------------------------------------------------------//
+  {
+    if (show)
+      add (layoutBorderPanel, BorderLayout.EAST);
+    else
+      remove (layoutBorderPanel);
+
+    validate ();
+  }
+
   // ---------------------------------------------------------------------------------//
   @Override
   public void diskSelected (DiskSelectedEvent e)
   // ---------------------------------------------------------------------------------//
   {
-    setTitle (windowTitle + e.getFormattedDisk () == null ? ""
-        : e.getFormattedDisk ().getName ());
+    setTitle (windowTitle + e.getFormattedDisk () == null ? "" : e.getFormattedDisk ().getName ());
   }
 
   // ---------------------------------------------------------------------------------//
@@ -250,31 +285,15 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
     windowSaver.restoreWindow ();
   }
 
-  // ---------------------------------------------------------------------------------//
-  public static void main (String[] args)
-  // ---------------------------------------------------------------------------------//
-  {
-    DiskBrowser.args = args;
-    EventQueue.invokeLater (new Runnable ()
-    {
-      @Override
-      public void run ()
-      {
-        setLookAndFeel ();
-        new DiskBrowser ().setVisible (true);
-      }
-    });
-  }
-
   // ---------------------------------------------------------------------------------//
   private static void setLookAndFeel ()
   // ---------------------------------------------------------------------------------//
   {
-    //    FlatLightLaf.install ();
+    // FlatLightLaf.install ();
     try
     {
       UIManager.setLookAndFeel (UIManager.getSystemLookAndFeelClassName ());
-      //      UIManager.setLookAndFeel (new FlatLightLaf ());
+      // UIManager.setLookAndFeel (new FlatLightLaf ());
       if (MAC)
         System.setProperty ("apple.laf.useScreenMenuBar", "true");
     }
@@ -284,22 +303,6 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
     }
   }
 
-  List<QuitListener> quitListeners = new ArrayList<> ();
-
-  // ---------------------------------------------------------------------------------//
-  public void addQuitListener (QuitListener listener)
-  // ---------------------------------------------------------------------------------//
-  {
-    quitListeners.add (listener);
-  }
-
-  // ---------------------------------------------------------------------------------//
-  public void removeQuitListener (QuitListener listener)
-  // ---------------------------------------------------------------------------------//
-  {
-    quitListeners.remove (listener);
-  }
-
   // ---------------------------------------------------------------------------------//
   private void fireQuitEvent ()
   // ---------------------------------------------------------------------------------//
@@ -317,4 +320,20 @@ public class DiskBrowser extends JFrame implements DiskSelectionListener, QuitLi
     for (QuitListener listener : quitListeners)
       listener.restore (prefs);
   }
+
+  // ---------------------------------------------------------------------------------//
+  public static void main (String[] args)
+  // ---------------------------------------------------------------------------------//
+  {
+    DiskBrowser.args = args;
+    EventQueue.invokeLater (new Runnable ()
+    {
+      @Override
+      public void run ()
+      {
+        setLookAndFeel ();
+        new DiskBrowser ().setVisible (true);
+      }
+    });
+  }
 }

src/com/bytezone/diskbrowser/gui/DiskLayoutImage.java

@@ -97,9 +97,10 @@ class DiskLayoutImage extends DiskPanel implements Scrollable, RedoListener
     selectionHandler.setSelection (sectors);
     if (sectors != null && sectors.size () > 0)
     {
-      DiskAddress da = sectors.size () == 1 ? sectors.get (0) : sectors.get (1);
-      if (da != null)
-        scrollRectToVisible (layoutDetails.getLocation (da));
+//      DiskAddress da = sectors.size () == 1 ? sectors.get (0) : sectors.get (1);
+//      if (da != null)
+//        scrollRectToVisible (layoutDetails.getLocation (da));
+      scrollRectToVisible (layoutDetails.getLocation (sectors.get (0)));
     }
     repaint ();
   }

src/com/bytezone/diskbrowser/gui/DiskLayoutPanel.java

@@ -12,6 +12,8 @@ import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 
 import javax.swing.JComponent;
 import javax.swing.JPanel;
@@ -19,14 +21,14 @@ import javax.swing.JScrollPane;
 
 import com.bytezone.diskbrowser.disk.Disk;
 import com.bytezone.diskbrowser.disk.DiskAddress;
-import com.bytezone.diskbrowser.disk.HybridDisk;
 import com.bytezone.diskbrowser.disk.FormattedDisk;
+import com.bytezone.diskbrowser.disk.HybridDisk;
 import com.bytezone.diskbrowser.gui.RedoHandler.RedoEvent;
 import com.bytezone.diskbrowser.gui.RedoHandler.RedoListener;
 
 // -----------------------------------------------------------------------------------//
-class DiskLayoutPanel extends JPanel
-    implements DiskSelectionListener, FileSelectionListener, RedoListener
+class DiskLayoutPanel extends JPanel implements DiskSelectionListener,
+    FileSelectionListener, RedoListener, PropertyChangeListener
 // -----------------------------------------------------------------------------------//
 {
   private static final int SIZE = 15;             // basic unit of a display block
@@ -134,6 +136,14 @@ class DiskLayoutPanel extends JPanel
     diskLayoutImage.setShowFreeSectors (free);
   }
 
+  // ---------------------------------------------------------------------------------//
+  @Override
+  public void propertyChange (PropertyChangeEvent evt)
+  // ---------------------------------------------------------------------------------//
+  {
+    setFree ((Boolean) evt.getNewValue ());
+  }
+
   // ---------------------------------------------------------------------------------//
   public void addSectorSelectionListener (SectorSelectionListener listener)
   // ---------------------------------------------------------------------------------//
@@ -141,6 +151,14 @@ class DiskLayoutPanel extends JPanel
     diskLayoutImage.addSectorSelectionListener (listener);
   }
 
+  // ---------------------------------------------------------------------------------//
+  public void addSectorSelectionListener (SectorSelectionListener... listeners)
+  // ---------------------------------------------------------------------------------//
+  {
+    for (SectorSelectionListener sectorSelectionListener : listeners)
+      diskLayoutImage.addSectorSelectionListener (sectorSelectionListener);
+  }
+
   // ---------------------------------------------------------------------------------//
   public void removeSectorSelectionListener (SectorSelectionListener listener)
   // ---------------------------------------------------------------------------------//
@@ -244,8 +262,8 @@ class DiskLayoutPanel extends JPanel
 
   private void checkCorrectDisk (FormattedDisk newDisk)
   {
-    if (newDisk instanceof HybridDisk)
-      newDisk = ((HybridDisk) newDisk).getCurrentDisk (); // never set to a Dual-dos disk
+    if (newDisk instanceof HybridDisk hybridDisk)
+      newDisk = hybridDisk.getCurrentDisk ();           // never set to a hybrid disk
     if (newDisk != diskLayoutImage.getDisk ())
     {
       LayoutDetails layout = new LayoutDetails (newDisk);

src/com/bytezone/diskbrowser/gui/DiskLayoutSelection.java

@@ -157,6 +157,7 @@ class DiskLayoutSelection implements Iterable<DiskAddress>
     for (DiskAddress selection : highlights)
       if (selection != null && da.matches (selection))
         return true;
+
     return false;
   }
 

src/com/bytezone/diskbrowser/gui/DiskLegendPanel.java

@@ -85,14 +85,13 @@ class DiskLegendPanel extends DiskPanel
     int val = formattedDisk.falseNegativeBlocks ();
     if (val > 0)
     {
-      g.drawString (
-          val + " unused sector" + (val == 1 ? "" : "s") + " marked as unavailable", 10,
-          y);
+      g.drawString (val + " unused sector" + (val == 1 ? "" : "s")    //
+          + " marked as unavailable", 10, y);
       y += lineHeight;
     }
     val = formattedDisk.falsePositiveBlocks ();
     if (val > 0)
-      g.drawString (val + " used sector" + (val == 1 ? "" : "s") + " marked as available",
-          10, y);
+      g.drawString (val + " used sector" + (val == 1 ? "" : "s")      //
+          + " marked as available", 10, y);
   }
 }

src/com/bytezone/diskbrowser/gui/DiskPanel.java

@@ -13,6 +13,7 @@ public class DiskPanel extends JPanel
 {
   FormattedDisk formattedDisk;
   LayoutDetails layoutDetails;
+
   int blockWidth = 30;              // default
   int blockHeight = 15;             // default
   int centerOffset;
@@ -20,11 +21,11 @@ public class DiskPanel extends JPanel
   Color backgroundColor = new Color (0xE0, 0xE0, 0xE0);
 
   // ---------------------------------------------------------------------------------//
-  public void setDisk (FormattedDisk disk, LayoutDetails details)
+  public void setDisk (FormattedDisk formattedDisk, LayoutDetails layoutDetails)
   // ---------------------------------------------------------------------------------//
   {
-    formattedDisk = disk;
-    layoutDetails = details;
+    this.formattedDisk = formattedDisk;
+    this.layoutDetails = layoutDetails;
 
     blockWidth = layoutDetails.block.width;
     blockHeight = layoutDetails.block.height;

src/com/bytezone/diskbrowser/gui/DiskSelectedEvent.java

@@ -9,7 +9,7 @@ import com.bytezone.diskbrowser.disk.FormattedDisk;
 class DiskSelectedEvent extends EventObject
 // -----------------------------------------------------------------------------------//
 {
-  private final FormattedDisk owner;
+  private final FormattedDisk formattedDisk;
   boolean redo;
 
   // ---------------------------------------------------------------------------------//
@@ -17,14 +17,14 @@ class DiskSelectedEvent extends EventObject
   // ---------------------------------------------------------------------------------//
   {
     super (source);
-    this.owner = disk;
+    this.formattedDisk = disk;
   }
 
   // ---------------------------------------------------------------------------------//
   public FormattedDisk getFormattedDisk ()
   // ---------------------------------------------------------------------------------//
   {
-    return owner;
+    return formattedDisk;
   }
 
   // ---------------------------------------------------------------------------------//
@@ -32,14 +32,14 @@ class DiskSelectedEvent extends EventObject
   public String toString ()
   // ---------------------------------------------------------------------------------//
   {
-    return owner.getDisk ().getFile ().getAbsolutePath ();
+    return formattedDisk.getDisk ().getFile ().getAbsolutePath ();
   }
 
   // ---------------------------------------------------------------------------------//
   public String toText ()
   // ---------------------------------------------------------------------------------//
   {
-    return owner.getAbsolutePath ();
+    return formattedDisk.getAbsolutePath ();
   }
 
   // ---------------------------------------------------------------------------------//

src/com/bytezone/diskbrowser/gui/DuplicateAction.java

@@ -3,6 +3,8 @@ package com.bytezone.diskbrowser.gui;
 import java.awt.Toolkit;
 import java.awt.event.ActionEvent;
 import java.awt.event.KeyEvent;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.io.File;
 
 import javax.swing.Action;
@@ -14,7 +16,7 @@ import com.bytezone.diskbrowser.duplicates.RootFolderData;
 import com.bytezone.diskbrowser.utilities.DefaultAction;
 
 // -----------------------------------------------------------------------------------//
-public class DuplicateAction extends DefaultAction implements RootDirectoryChangeListener
+public class DuplicateAction extends DefaultAction implements PropertyChangeListener
 // -----------------------------------------------------------------------------------//
 {
   RootFolderData rootFolderData;
@@ -36,14 +38,22 @@ public class DuplicateAction extends DefaultAction implements RootDirectoryChang
   }
 
   // ---------------------------------------------------------------------------------//
-  @Override
-  public void rootDirectoryChanged (File oldRootFolder, File newRootFolder)
+  private void rootDirectoryChanged (File oldRootFolder, File newRootFolder)
   // ---------------------------------------------------------------------------------//
   {
     assert rootFolderData.getRootFolder () == newRootFolder;
     setEnabled (rootFolderData.getRootFolder () != null);
   }
 
+  // ---------------------------------------------------------------------------------//
+  @Override
+  public void propertyChange (PropertyChangeEvent evt)
+  // ---------------------------------------------------------------------------------//
+  {
+    if (evt.getPropertyName ().equals ("RootDirectory"))
+      rootDirectoryChanged ((File) evt.getOldValue (), (File) evt.getNewValue ());
+  }
+
   // ---------------------------------------------------------------------------------//
   @Override
   public void actionPerformed (ActionEvent arg0)

src/com/bytezone/diskbrowser/gui/FileSelectedEvent.java

@@ -3,8 +3,8 @@ package com.bytezone.diskbrowser.gui;
 import java.util.EventObject;
 
 import com.bytezone.diskbrowser.applefile.AppleFileSource;
-import com.bytezone.diskbrowser.disk.HybridDisk;
 import com.bytezone.diskbrowser.disk.FormattedDisk;
+import com.bytezone.diskbrowser.disk.HybridDisk;
 
 // -----------------------------------------------------------------------------------//
 class FileSelectedEvent extends EventObject
@@ -21,8 +21,9 @@ class FileSelectedEvent extends EventObject
     super (source);
     this.appleFileSource = appleFileSource;
 
-    // If a file is selected from a disk which is contained in a Dual-dos disk, then the DDS
-    // must be told so that it can ensure its internal currentDisk is set correctly
+    // If a file is selected from a disk which is part of a hybrid disk, then the 
+    // parent must be told so that it can ensure its internal currentDisk is set
+    // correctly
     FormattedDisk fd = appleFileSource.getFormattedDisk ();
     HybridDisk ddd = (HybridDisk) fd.getParent ();
     if (ddd != null)

src/com/bytezone/diskbrowser/gui/FontAction.java

@@ -36,6 +36,7 @@ public class FontAction extends DefaultAction implements QuitListener
   {
     super ("Set Font...", "Set display to a different font or font size",
         "/com/bytezone/loadlister/");
+
     int mask = Toolkit.getDefaultToolkit ().getMenuShortcutKeyMaskEx ();
     putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke (KeyEvent.VK_F, mask));
   }
@@ -146,8 +147,7 @@ public class FontAction extends DefaultAction implements QuitListener
   // ---------------------------------------------------------------------------------//
   {
     FontChangeEvent fontChangeEvent = new FontChangeEvent (font);
-    FontChangeListener[] listeners =
-        (listenerList.getListeners (FontChangeListener.class));
+    FontChangeListener[] listeners = (listenerList.getListeners (FontChangeListener.class));
     for (FontChangeListener listener : listeners)
       listener.changeFont (fontChangeEvent);
   }

src/com/bytezone/diskbrowser/gui/FontFrame.java

@@ -47,6 +47,7 @@ public class FontFrame extends JFrame
   // ---------------------------------------------------------------------------------//
   {
     super ("Font Selection");
+
     this.fontAction = fontAction;
     buildLayout ();
     getFonts ();
@@ -96,8 +97,7 @@ public class FontFrame extends JFrame
   public String getSelectedValue ()
   // ---------------------------------------------------------------------------------//
   {
-    String fontName = fontList.getSelectedValue ();
-    return fontName;
+    return fontList.getSelectedValue ();
   }
 
   // ---------------------------------------------------------------------------------//
@@ -112,8 +112,7 @@ public class FontFrame extends JFrame
   public String getSelectedSize ()
   // ---------------------------------------------------------------------------------//
   {
-    String fontSize = fontSizePanel.getSelectedText ();
-    return fontSize;
+    return fontSizePanel.getSelectedText ();
   }
 
   // ---------------------------------------------------------------------------------//
@@ -146,7 +145,6 @@ public class FontFrame extends JFrame
 
     int ptr = 0;
     for (String fontName : fonts)
-    {
       while (ptr < pf.length)
       {
         int result = fontName.compareToIgnoreCase (pf[ptr]);
@@ -159,7 +157,6 @@ public class FontFrame extends JFrame
         }
         break;
       }
-    }
 
     fontList.setSelectedValue (initialFont, true);
   }
@@ -254,13 +251,14 @@ public class FontFrame extends JFrame
   private Font getCurrentFont ()
   // ---------------------------------------------------------------------------------//
   {
-    String fontName = getSelectedValue ();
     String fontSize = getSelectedSize ();
     if (fontSize.isEmpty ())
       return null;
+
     int pos = fontSize.indexOf (' ');
     int size = Integer.parseInt (fontSize.substring (0, pos));
-    return new Font (fontName, Font.PLAIN, size);
+
+    return new Font (getSelectedValue (), Font.PLAIN, size);
   }
 
   // ---------------------------------------------------------------------------------//
@@ -269,8 +267,10 @@ public class FontFrame extends JFrame
   {
     initialFont = getSelectedValue ();
     initialSize = getSelectedSize ();
+
     int pos = initialSize.indexOf (' ');
     int size = Integer.parseInt (initialSize.substring (0, pos));
+
     Font font = new Font (initialFont, Font.PLAIN, size);
     fontAction.fireFontChangeEvent (font);
   }

src/com/bytezone/diskbrowser/gui/HideCatalogAction.java

@@ -1,33 +1,26 @@
 package com.bytezone.diskbrowser.gui;
 
-import java.awt.BorderLayout;
 import java.awt.event.ActionEvent;
 import java.awt.event.KeyEvent;
 
 import javax.swing.AbstractAction;
 import javax.swing.Action;
-import javax.swing.JFrame;
 import javax.swing.JMenuItem;
-import javax.swing.JPanel;
 import javax.swing.KeyStroke;
 
 // -----------------------------------------------------------------------------------//
 class HideCatalogAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
-  JFrame owner;
-  JPanel catalogPanel;
-
   // ---------------------------------------------------------------------------------//
-  public HideCatalogAction (JFrame owner, JPanel catalogPanel)
+  public HideCatalogAction ()
   // ---------------------------------------------------------------------------------//
   {
     super ("Show catalog panel");
+
     putValue (Action.SHORT_DESCRIPTION, "Show/hide the catalog panel");
     putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke ("alt C"));
     putValue (Action.MNEMONIC_KEY, KeyEvent.VK_C);
-    this.owner = owner;
-    this.catalogPanel = catalogPanel;
   }
 
   // ---------------------------------------------------------------------------------//
@@ -35,22 +28,7 @@ class HideCatalogAction extends AbstractAction
   public void actionPerformed (ActionEvent e)
   // ---------------------------------------------------------------------------------//
   {
-    set (((JMenuItem) e.getSource ()).isSelected ());
-  }
-
-  // ---------------------------------------------------------------------------------//
-  public void set (boolean show)
-  // ---------------------------------------------------------------------------------//
-  {
-    if (show)
-    {
-      owner.add (catalogPanel, BorderLayout.WEST);
-      owner.validate ();
-    }
-    else
-    {
-      owner.remove (catalogPanel);
-      owner.validate ();
-    }
+    firePropertyChange (e.getActionCommand (), null,
+        ((JMenuItem) e.getSource ()).isSelected ());
   }
 }

src/com/bytezone/diskbrowser/gui/HideLayoutAction.java

@@ -1,33 +1,26 @@
 package com.bytezone.diskbrowser.gui;
 
-import java.awt.BorderLayout;
 import java.awt.event.ActionEvent;
 import java.awt.event.KeyEvent;
 
 import javax.swing.AbstractAction;
 import javax.swing.Action;
-import javax.swing.JFrame;
 import javax.swing.JMenuItem;
-import javax.swing.JPanel;
 import javax.swing.KeyStroke;
 
 // -----------------------------------------------------------------------------------//
 class HideLayoutAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
-  JFrame owner;
-  JPanel layoutPanel;
-
   // ---------------------------------------------------------------------------------//
-  public HideLayoutAction (JFrame owner, JPanel layoutPanel)
+  public HideLayoutAction ()
   // ---------------------------------------------------------------------------------//
   {
     super ("Show disk layout panel");
+
     putValue (Action.SHORT_DESCRIPTION, "Show/hide the disk layout panel");
     putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke ("alt D"));
     putValue (Action.MNEMONIC_KEY, KeyEvent.VK_D);
-    this.owner = owner;
-    this.layoutPanel = layoutPanel;
   }
 
   // ---------------------------------------------------------------------------------//
@@ -35,22 +28,7 @@ class HideLayoutAction extends AbstractAction
   public void actionPerformed (ActionEvent e)
   // ---------------------------------------------------------------------------------//
   {
-    set (((JMenuItem) e.getSource ()).isSelected ());
-  }
-
-  // ---------------------------------------------------------------------------------//
-  public void set (boolean show)
-  // ---------------------------------------------------------------------------------//
-  {
-    if (show)
-    {
-      owner.add (layoutPanel, BorderLayout.EAST);
-      owner.validate ();
-    }
-    else
-    {
-      owner.remove (layoutPanel);
-      owner.validate ();
-    }
+    firePropertyChange (e.getActionCommand (), null,
+        ((JMenuItem) e.getSource ()).isSelected ());
   }
 }

src/com/bytezone/diskbrowser/gui/ImagePanel.java

@@ -0,0 +1,84 @@
+package com.bytezone.diskbrowser.gui;
+
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
+import java.awt.geom.AffineTransform;
+import java.awt.image.BufferedImage;
+
+import javax.swing.JPanel;
+
+// -----------------------------------------------------------------------------------//
+public class ImagePanel extends JPanel
+// -----------------------------------------------------------------------------------//
+{
+  private static final int BACKGROUND = 245;
+
+  private BufferedImage image;
+  private double scale = 1;
+  private double userScale = .5;
+
+  // ---------------------------------------------------------------------------------//
+  public ImagePanel ()
+  // ---------------------------------------------------------------------------------//
+  {
+    this.setBackground (new Color (BACKGROUND, BACKGROUND, BACKGROUND));
+  }
+
+  // ---------------------------------------------------------------------------------//
+  public void setScale (double scale)
+  // ---------------------------------------------------------------------------------//
+  {
+    this.userScale = scale;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  public void setImage (BufferedImage image)
+  // ---------------------------------------------------------------------------------//
+  {
+    this.image = image;
+    int width, height;
+
+    if (image != null)
+    {
+      Graphics2D g2 = image.createGraphics ();
+      g2.setRenderingHint (RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+      width = image.getWidth ();
+      height = image.getHeight ();
+    }
+    else
+      width = height = 0;
+
+    if (true)
+    {
+      if (width < 400 && width > 0)
+        scale = (400 - 1) / width + 1;
+      else
+        scale = 1;
+      if (scale > 4)
+        scale = 4;
+    }
+
+    scale *= userScale;
+
+    setPreferredSize (new Dimension ((int) (width * scale), (int) (height * scale)));
+    repaint ();
+  }
+
+  // ---------------------------------------------------------------------------------//
+  @Override
+  public void paintComponent (Graphics g)
+  // ---------------------------------------------------------------------------------//
+  {
+    super.paintComponent (g);
+
+    if (image != null)
+    {
+      Graphics2D g2 = ((Graphics2D) g);
+      g2.transform (AffineTransform.getScaleInstance (scale, scale));
+      g2.drawImage (image, (int) ((getWidth () - image.getWidth () * scale) / 2 / scale), 4, this);
+    }
+  }
+}

src/com/bytezone/diskbrowser/gui/LineWrapAction.java

@@ -2,45 +2,33 @@ package com.bytezone.diskbrowser.gui;
 
 import java.awt.event.ActionEvent;
 import java.awt.event.KeyEvent;
-import java.util.ArrayList;
-import java.util.List;
 
 import javax.swing.AbstractAction;
 import javax.swing.Action;
 import javax.swing.JMenuItem;
-import javax.swing.JTextArea;
 import javax.swing.KeyStroke;
 
 // -----------------------------------------------------------------------------------//
 class LineWrapAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
-  List<JTextArea> listeners = new ArrayList<> ();
-
   // ---------------------------------------------------------------------------------//
   public LineWrapAction ()
   // ---------------------------------------------------------------------------------//
   {
     super ("Line wrap");
-    putValue (Action.SHORT_DESCRIPTION, "Print the contents of the output panel");
+
+    putValue (Action.SHORT_DESCRIPTION, "Wrap/don't wrap the text in the output panel");
     putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke ("alt W"));
     putValue (Action.MNEMONIC_KEY, KeyEvent.VK_W);
   }
 
-  // ---------------------------------------------------------------------------------//
-  public void addListener (JTextArea listener)
-  // ---------------------------------------------------------------------------------//
-  {
-    if (!listeners.contains (listener))
-      listeners.add (listener);
-  }
-
   // ---------------------------------------------------------------------------------//
   @Override
   public void actionPerformed (ActionEvent e)
   // ---------------------------------------------------------------------------------//
   {
-    for (JTextArea listener : listeners)
-      listener.setLineWrap (((JMenuItem) e.getSource ()).isSelected ());
+    firePropertyChange (e.getActionCommand (), null,
+        ((JMenuItem) e.getSource ()).isSelected ());
   }
 }

src/com/bytezone/diskbrowser/gui/MenuHandler.java

@@ -76,7 +76,6 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
 
   private static final String PREFS_PALETTE = "palette";
 
-  FormattedDisk currentDisk;
   final SaveDiskAction saveDiskAction = new SaveDiskAction ();
   final SaveFileAction saveFileAction = new SaveFileAction ();
   final SaveSectorsAction saveSectorsAction = new SaveSectorsAction ();
@@ -186,6 +185,8 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
 
   ButtonGroup paletteGroup = new ButtonGroup ();
 
+  FormattedDisk currentDisk;
+
   // ---------------------------------------------------------------------------------//
   MenuHandler ()
   // ---------------------------------------------------------------------------------//
@@ -211,7 +212,7 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     addLauncherMenu ();
 
     fileMenu.add (printItem);
-    //    fileMenu.addSeparator ();
+    // fileMenu.addSeparator ();
     fileMenu.add (closeTabItem);
 
     JMenuItem fontItem = new JMenuItem (fontAction);
@@ -270,13 +271,13 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     applesoftMenu.add (splitRemarkItem);
     applesoftMenu.add (splitDimItem);
     applesoftMenu.add (alignAssignItem);
-    //    applesoftMenu.add (showBasicTargetsItem);
-    //    applesoftMenu.add (onlyShowTargetLinesItem);
+    // applesoftMenu.add (showBasicTargetsItem);
+    // applesoftMenu.add (onlyShowTargetLinesItem);
     applesoftMenu.add (showCaretItem);
     applesoftMenu.add (showThenItem);
     applesoftMenu.add (blankAfterReturnItem);
     applesoftMenu.add (formatRemItem);
-    //    applesoftMenu.add (deleteExtraRemSpace);
+    // applesoftMenu.add (deleteExtraRemSpace);
     applesoftMenu.add (deleteExtraDataSpace);
     applesoftMenu.addSeparator ();
     applesoftMenu.add (showXrefItem);
@@ -284,7 +285,7 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     applesoftMenu.add (showSymbolsItem);
     applesoftMenu.add (showFunctionsItem);
     applesoftMenu.add (showConstantsItem);
-    //    applesoftMenu.add (listStringsItem);
+    // applesoftMenu.add (listStringsItem);
     applesoftMenu.add (showDuplicateSymbolsItem);
 
     assemblerMenu.add (showAssemblerHeaderItem);
@@ -347,6 +348,7 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     showAllFormatItem.addActionListener (basicPreferencesAction);
     showAllXrefItem.addActionListener (basicPreferencesAction);
     appleLineWrapItem.addActionListener (basicPreferencesAction);
+
     for (JMenuItem item : applesoftFormatItems)
       item.addActionListener (basicPreferencesAction);
     for (JMenuItem item : applesoftXrefItems)
@@ -374,10 +376,12 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
 
     sectorGroup.add (sector256Item);
     sectorGroup.add (sector512Item);
+
     interleaveGroup.add (interleave0Item);
     interleaveGroup.add (interleave1Item);
     interleaveGroup.add (interleave2Item);
     interleaveGroup.add (interleave3Item);
+
     scaleGroup.add (scale1Item);
     scaleGroup.add (scale2Item);
     scaleGroup.add (scale3Item);
@@ -546,6 +550,7 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
         openSupported = true;
         break;
       }
+
     if (!openSupported)
       return;
 
@@ -554,60 +559,6 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     fileMenu.addSeparator ();
   }
 
-  // ---------------------------------------------------------------------------------//
-  @Override
-  public void quit (Preferences prefs)
-  // ---------------------------------------------------------------------------------//
-  {
-    prefs.putBoolean (PREFS_LINE_WRAP, lineWrapItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_LAYOUT, showLayoutItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_CATALOG, showCatalogItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_FREE_SECTORS, showFreeSectorsItem.isSelected ());
-    prefs.putBoolean (PREFS_COLOUR_QUIRKS, colourQuirksItem.isSelected ());
-    prefs.putBoolean (PREFS_MONOCHROME, monochromeItem.isSelected ());
-    prefs.putInt (PREFS_PALETTE,
-        HiResImage.getPaletteFactory ().getCurrentPaletteIndex ());
-    fontAction.quit (prefs);
-
-    int scale = scale1Item.isSelected () ? 1 : scale2Item.isSelected () ? 2 : 3;
-    prefs.putInt (PREFS_SCALE, scale);
-
-    prefs.putBoolean (PREFS_SHOW_HEADER, showHeaderItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_ALL_FORMAT, showAllFormatItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_ALL_XREF, showAllXrefItem.isSelected ());
-
-    prefs.putBoolean (PREFS_APPLE_LINE_WRAP, appleLineWrapItem.isSelected ());
-
-    prefs.putBoolean (PREFS_SPLIT_REMARKS, splitRemarkItem.isSelected ());
-    prefs.putBoolean (PREFS_SPLIT_DIM, splitDimItem.isSelected ());
-    prefs.putBoolean (PREFS_ALIGN_ASSIGN, alignAssignItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_CARET, showCaretItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_THEN, showThenItem.isSelected ());
-    prefs.putBoolean (PREFS_BLANK_AFTER_RETURN, blankAfterReturnItem.isSelected ());
-    prefs.putBoolean (PREFS_FORMAT_REM, formatRemItem.isSelected ());
-    prefs.putBoolean (PREFS_DELETE_EXTRA_DATA_SPACE, deleteExtraDataSpace.isSelected ());
-
-    prefs.putBoolean (PREFS_SHOW_GOSUB_GOTO, showXrefItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_CALLS, showCallsItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_SYMBOLS, showSymbolsItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_FUNCTIONS, showFunctionsItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_CONSTANTS, showConstantsItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_DUPLICATE_SYMBOLS,
-        showDuplicateSymbolsItem.isSelected ());
-
-    prefs.putBoolean (PREFS_SHOW_ASSEMBLER_TARGETS,
-        showAssemblerTargetsItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_ASSEMBLER_STRINGS,
-        showAssemblerStringsItem.isSelected ());
-    prefs.putBoolean (PREFS_SHOW_ASSEMBLER_HEADER, showAssemblerHeaderItem.isSelected ());
-
-    prefs.putBoolean (PREFS_PRODOS_SORT_DIRECTORIES,
-        prodosSortDirectoriesItem.isSelected ());
-
-    prefs.putBoolean (PREFS_TEXT_SHOW_OFFSETS, showTextOffsetsItem.isSelected ());
-    prefs.putBoolean (PREFS_TEXT_SHOW_HEADER, showTextHeaderItem.isSelected ());
-  }
-
   // ---------------------------------------------------------------------------------//
   @Override
   public void restore (Preferences prefs)
@@ -697,6 +648,60 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     fontAction.restore (prefs);
   }
 
+  // ---------------------------------------------------------------------------------//
+  @Override
+  public void quit (Preferences prefs)
+  // ---------------------------------------------------------------------------------//
+  {
+    prefs.putBoolean (PREFS_LINE_WRAP, lineWrapItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_LAYOUT, showLayoutItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_CATALOG, showCatalogItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_FREE_SECTORS, showFreeSectorsItem.isSelected ());
+    prefs.putBoolean (PREFS_COLOUR_QUIRKS, colourQuirksItem.isSelected ());
+    prefs.putBoolean (PREFS_MONOCHROME, monochromeItem.isSelected ());
+    prefs.putInt (PREFS_PALETTE,
+        HiResImage.getPaletteFactory ().getCurrentPaletteIndex ());
+    fontAction.quit (prefs);
+
+    int scale = scale1Item.isSelected () ? 1 : scale2Item.isSelected () ? 2 : 3;
+    prefs.putInt (PREFS_SCALE, scale);
+
+    prefs.putBoolean (PREFS_SHOW_HEADER, showHeaderItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_ALL_FORMAT, showAllFormatItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_ALL_XREF, showAllXrefItem.isSelected ());
+
+    prefs.putBoolean (PREFS_APPLE_LINE_WRAP, appleLineWrapItem.isSelected ());
+
+    prefs.putBoolean (PREFS_SPLIT_REMARKS, splitRemarkItem.isSelected ());
+    prefs.putBoolean (PREFS_SPLIT_DIM, splitDimItem.isSelected ());
+    prefs.putBoolean (PREFS_ALIGN_ASSIGN, alignAssignItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_CARET, showCaretItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_THEN, showThenItem.isSelected ());
+    prefs.putBoolean (PREFS_BLANK_AFTER_RETURN, blankAfterReturnItem.isSelected ());
+    prefs.putBoolean (PREFS_FORMAT_REM, formatRemItem.isSelected ());
+    prefs.putBoolean (PREFS_DELETE_EXTRA_DATA_SPACE, deleteExtraDataSpace.isSelected ());
+
+    prefs.putBoolean (PREFS_SHOW_GOSUB_GOTO, showXrefItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_CALLS, showCallsItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_SYMBOLS, showSymbolsItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_FUNCTIONS, showFunctionsItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_CONSTANTS, showConstantsItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_DUPLICATE_SYMBOLS,
+        showDuplicateSymbolsItem.isSelected ());
+
+    prefs.putBoolean (PREFS_SHOW_ASSEMBLER_TARGETS,
+        showAssemblerTargetsItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_ASSEMBLER_STRINGS,
+        showAssemblerStringsItem.isSelected ());
+    prefs.putBoolean (PREFS_SHOW_ASSEMBLER_HEADER, showAssemblerHeaderItem.isSelected ());
+
+    prefs.putBoolean (PREFS_PRODOS_SORT_DIRECTORIES,
+        prodosSortDirectoriesItem.isSelected ());
+
+    prefs.putBoolean (PREFS_TEXT_SHOW_OFFSETS, showTextOffsetsItem.isSelected ());
+    prefs.putBoolean (PREFS_TEXT_SHOW_HEADER, showTextHeaderItem.isSelected ());
+  }
+
   // ---------------------------------------------------------------------------------//
   @Override
   public void diskSelected (DiskSelectedEvent event)
@@ -733,7 +738,7 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
       interleave3Item.setSelected (disk.getDisk ().getInterleave () == 3);
     }
 
-    boolean isDataDisk = (disk instanceof DataDisk);
+    boolean isDataDisk = disk instanceof DataDisk;
 
     sector256Item.setEnabled (isDataDisk);
     sector512Item.setEnabled (isDataDisk);

src/com/bytezone/diskbrowser/gui/MonochromeAction.java

@@ -12,17 +12,15 @@ import javax.swing.KeyStroke;
 class MonochromeAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
-  private final DataPanel owner;
-
   // ---------------------------------------------------------------------------------//
-  MonochromeAction (DataPanel owner)
+  MonochromeAction ()
   // ---------------------------------------------------------------------------------//
   {
     super ("Monochrome");
+
     putValue (Action.SHORT_DESCRIPTION, "Display image in monochrome or color");
     putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke ("alt M"));
     putValue (Action.MNEMONIC_KEY, KeyEvent.VK_M);
-    this.owner = owner;
   }
 
   // ---------------------------------------------------------------------------------//
@@ -30,6 +28,7 @@ class MonochromeAction extends AbstractAction
   public void actionPerformed (ActionEvent e)
   // ---------------------------------------------------------------------------------//
   {
-    owner.setMonochrome (((JMenuItem) e.getSource ()).isSelected ());
+    firePropertyChange (e.getActionCommand (), null,
+        ((JMenuItem) e.getSource ()).isSelected ());
   }
 }

src/com/bytezone/diskbrowser/gui/NextPaletteAction.java

@@ -17,11 +17,11 @@ import com.bytezone.diskbrowser.applefile.PaletteFactory.CycleDirection;
 class NextPaletteAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
-  private final DataPanel owner;
+  private final OutputPanel owner;
   private final ButtonGroup buttonGroup;
 
   // ---------------------------------------------------------------------------------//
-  NextPaletteAction (DataPanel owner, ButtonGroup buttonGroup)
+  NextPaletteAction (OutputPanel owner, ButtonGroup buttonGroup)
   // ---------------------------------------------------------------------------------//
   {
     super ("Next Palette");

src/com/bytezone/diskbrowser/gui/OutputPanel.java

@@ -1,27 +1,21 @@
 package com.bytezone.diskbrowser.gui;
 
-import java.awt.Color;
-import java.awt.Dimension;
 import java.awt.Font;
-import java.awt.Graphics;
-import java.awt.Graphics2D;
 import java.awt.Insets;
-import java.awt.RenderingHints;
-import java.awt.geom.AffineTransform;
 import java.awt.image.BufferedImage;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.util.Enumeration;
 import java.util.List;
 
 import javax.swing.AbstractButton;
 import javax.swing.ButtonGroup;
 import javax.swing.JCheckBoxMenuItem;
-import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.JTabbedPane;
 import javax.swing.JTextArea;
 import javax.swing.ScrollPaneConstants;
 import javax.swing.SwingConstants;
-import javax.swing.SwingWorker;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 
@@ -39,17 +33,18 @@ import com.bytezone.diskbrowser.disk.DiskAddress;
 import com.bytezone.diskbrowser.disk.SectorList;
 import com.bytezone.diskbrowser.gui.FontAction.FontChangeEvent;
 import com.bytezone.diskbrowser.gui.FontAction.FontChangeListener;
+import com.bytezone.diskbrowser.wizardry.MazeLevel;
 
 // -----------------------------------------------------------------------------------//
-public class DataPanel extends JTabbedPane
+public class OutputPanel extends JTabbedPane
     implements DiskSelectionListener, FileSelectionListener, SectorSelectionListener,
     FileNodeSelectionListener, FontChangeListener, BasicPreferencesListener,
-    AssemblerPreferencesListener, TextPreferencesListener
+    AssemblerPreferencesListener, TextPreferencesListener, PropertyChangeListener
 // -----------------------------------------------------------------------------------//
 {
   private static final int TEXT_WIDTH = 65;
-  private static final int BACKGROUND = 245;
 
+  // final MenuHandler menuHandler;
   private final JTextArea formattedText;
   private final JTextArea hexText;
   private final JTextArea disassemblyText;
@@ -57,41 +52,42 @@ public class DataPanel extends JTabbedPane
   // these two panes are interchangeable
   private final JScrollPane formattedPane;
   private final JScrollPane imagePane;
+
   private boolean imageVisible = false;
 
-  private final ImagePanel imagePanel;                        // internal class
+  private final ImagePanel imagePanel = new ImagePanel ();
+  private AnimationWorker animation;
   private boolean debugMode;
+  private DataSource currentDataSource;
 
   // used to determine whether the text has been set
-  boolean formattedTextValid;
-  boolean hexTextValid;
-  boolean assemblerTextValid;
-  DataSource currentDataSource;
+  private boolean formattedTextValid;
+  private boolean hexTextValid;
+  private boolean assemblerTextValid;
 
-  private Worker animation;
+  private DebuggingAction debuggingAction = new DebuggingAction ();
+  private MonochromeAction monochromeAction = new MonochromeAction ();
+  private ColourQuirksAction colourQuirksAction = new ColourQuirksAction ();
+  private LineWrapAction lineWrapAction = new LineWrapAction ();
 
-  final MenuHandler menuHandler;
-
-  enum TabType
+  private enum TabType
   {
     FORMATTED, HEX, DISASSEMBLED
   }
 
   // ---------------------------------------------------------------------------------//
-  public DataPanel (MenuHandler mh)
+  public OutputPanel (MenuHandler menuHandler)
   // ---------------------------------------------------------------------------------//
   {
-    this.menuHandler = mh;
     setTabPlacement (SwingConstants.BOTTOM);
 
     formattedText = new JTextArea (10, TEXT_WIDTH);
     formattedPane = setPanel (formattedText, "Formatted");
-    //    formattedText.setLineWrap (prefs.getBoolean (MenuHandler.PREFS_LINE_WRAP, true));
+    // formattedText.setLineWrap (prefs.getBoolean (MenuHandler.PREFS_LINE_WRAP, true));
     formattedText.setText ("Please use the 'File->Set HOME folder...' command to "
         + "\ntell DiskBrowser where your Apple disks are located."
         + "\n\nTo see the contents of a disk in more detail, double-click"
-        + "\nthe disk. You will then be able to select individual files to "
-        + "view completely.");
+        + "\nthe disk. You will then be able to select individual files to " + "view them.");
 
     hexText = new JTextArea (10, TEXT_WIDTH);
     setPanel (hexText, "Hex dump");
@@ -99,10 +95,8 @@ public class DataPanel extends JTabbedPane
     disassemblyText = new JTextArea (10, TEXT_WIDTH);
     setPanel (disassemblyText, "Disassembly");
 
-    imagePanel = new ImagePanel ();
-    imagePane =
-        new JScrollPane (imagePanel, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
-            ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
+    imagePane = new JScrollPane (imagePanel, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
+        ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
 
     imagePane.setBorder (null);
 
@@ -126,6 +120,7 @@ public class DataPanel extends JTabbedPane
               formattedTextValid = true;
             }
             break;
+
           case 1:                           // Hex
             if (!hexTextValid)
             {
@@ -136,6 +131,7 @@ public class DataPanel extends JTabbedPane
               hexTextValid = true;
             }
             break;
+
           case 2:                           // Assembler
             if (!assemblerTextValid)
             {
@@ -146,19 +142,24 @@ public class DataPanel extends JTabbedPane
               assemblerTextValid = true;
             }
             break;
+
           default:
-            System.out.println ("Invalid index selected in DataPanel");
+            System.out.println ("Impossible - Invalid index selected in DataPanel");
         }
       }
     });
 
-    LineWrapAction lineWrapAction = new LineWrapAction ();
     menuHandler.lineWrapItem.setAction (lineWrapAction);
-    lineWrapAction.addListener (formattedText);
+    lineWrapAction.addPropertyChangeListener (this);
 
-    menuHandler.colourQuirksItem.setAction (new ColourQuirksAction (this));
-    menuHandler.monochromeItem.setAction (new MonochromeAction (this));
-    menuHandler.debuggingItem.setAction (new DebuggingAction (this));
+    colourQuirksAction.addPropertyChangeListener (this);
+    menuHandler.colourQuirksItem.setAction (colourQuirksAction);
+
+    monochromeAction.addPropertyChangeListener (this);
+    menuHandler.monochromeItem.setAction (monochromeAction);
+
+    debuggingAction.addPropertyChangeListener (this);
+    menuHandler.debuggingItem.setAction (debuggingAction);
 
     // fill in the placeholders created by the MenuHandler
     List<Palette> palettes = HiResImage.getPalettes ();
@@ -170,6 +171,7 @@ public class DataPanel extends JTabbedPane
       JCheckBoxMenuItem item = (JCheckBoxMenuItem) enumeration.nextElement ();
       item.setAction (new PaletteAction (this, palettes.get (ndx++)));
     }
+
     menuHandler.nextPaletteItem.setAction (new NextPaletteAction (this, buttonGroup));
     menuHandler.prevPaletteItem.setAction (new PreviousPaletteAction (this, buttonGroup));
   }
@@ -179,9 +181,8 @@ public class DataPanel extends JTabbedPane
   // ---------------------------------------------------------------------------------//
   {
     HiResImage.getPaletteFactory ().setCurrentPalette (palette);
-    if (currentDataSource instanceof HiResImage)
+    if (currentDataSource instanceof HiResImage image)
     {
-      HiResImage image = (HiResImage) currentDataSource;
       image.setPalette ();
       imagePanel.setImage (image.getImage ());
     }
@@ -192,15 +193,29 @@ public class DataPanel extends JTabbedPane
   // ---------------------------------------------------------------------------------//
   {
     Palette palette = HiResImage.getPaletteFactory ().cyclePalette (direction);
-    if (currentDataSource instanceof HiResImage)
+    if (currentDataSource instanceof HiResImage image)
     {
-      HiResImage image = (HiResImage) currentDataSource;
       image.setPalette ();
       imagePanel.setImage (image.getImage ());
     }
     return palette;
   }
 
+  // ---------------------------------------------------------------------------------//
+  @Override
+  public void propertyChange (PropertyChangeEvent evt)
+  // ---------------------------------------------------------------------------------//
+  {
+    if (evt.getSource () == debuggingAction)
+      setDebug ((Boolean) evt.getNewValue ());
+    else if (evt.getSource () == monochromeAction)
+      setMonochrome ((Boolean) evt.getNewValue ());
+    else if (evt.getSource () == colourQuirksAction)
+      setColourQuirks ((Boolean) evt.getNewValue ());
+    else if (evt.getSource () == lineWrapAction)
+      setLineWrap ((Boolean) evt.getNewValue ());
+  }
+
   // ---------------------------------------------------------------------------------//
   void setLineWrap (boolean lineWrap)
   // ---------------------------------------------------------------------------------//
@@ -212,9 +227,8 @@ public class DataPanel extends JTabbedPane
   public void setColourQuirks (boolean value)
   // ---------------------------------------------------------------------------------//
   {
-    if (currentDataSource instanceof HiResImage)
+    if (currentDataSource instanceof HiResImage image)
     {
-      HiResImage image = (HiResImage) currentDataSource;
       image.setColourQuirks (value);
       imagePanel.setImage (image.getImage ());
     }
@@ -224,9 +238,8 @@ public class DataPanel extends JTabbedPane
   public void setMonochrome (boolean value)
   // ---------------------------------------------------------------------------------//
   {
-    if (currentDataSource instanceof HiResImage)
+    if (currentDataSource instanceof HiResImage image)
     {
-      HiResImage image = (HiResImage) currentDataSource;
       image.setMonochrome (value);
       imagePanel.setImage (image.getImage ());
     }
@@ -237,22 +250,16 @@ public class DataPanel extends JTabbedPane
   // ---------------------------------------------------------------------------------//
   {
     imagePanel.setScale (scale);
-    if (currentDataSource instanceof HiResImage)
-    {
-      HiResImage image = (HiResImage) currentDataSource;
+    if (currentDataSource instanceof HiResImage image)
       imagePanel.setImage (image.getImage ());
-    }
   }
 
   // ---------------------------------------------------------------------------------//
   public void update ()
   // ---------------------------------------------------------------------------------//
   {
-    if (currentDataSource instanceof HiResImage)
-    {
-      HiResImage image = (HiResImage) currentDataSource;
+    if (currentDataSource instanceof HiResImage image)
       imagePanel.setImage (image.getImage ());
-    }
   }
 
   // ---------------------------------------------------------------------------------//
@@ -264,9 +271,10 @@ public class DataPanel extends JTabbedPane
     AbstractFile.setDebug (value);
     setText (formattedText, currentDataSource.getText ());
 
-    if (currentDataSource instanceof HiResImage
+    if (currentDataSource instanceof HiResImage           //
+        || currentDataSource instanceof MazeLevel         // Wizardry
         || currentDataSource instanceof QuickDrawFont)
-      setDataSource (currentDataSource);      // toggles text/image
+      setDataSource (currentDataSource);                  // toggles text/image
   }
 
   // ---------------------------------------------------------------------------------//
@@ -298,6 +306,7 @@ public class DataPanel extends JTabbedPane
     JScrollPane outputScrollPane =
         new JScrollPane (outputPanel, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
             ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
+
     outputScrollPane.setBorder (null);              // remove the ugly default border
     add (outputScrollPane, tabName);
     return outputScrollPane;
@@ -355,15 +364,15 @@ public class DataPanel extends JTabbedPane
       removeImage ();
     else
     {
-      if (dataSource instanceof HiResImage)
+      if (dataSource instanceof HiResImage hri)
       {
-        ((HiResImage) dataSource).checkPalette ();
+        hri.checkPalette ();
         image = dataSource.getImage ();
         if (((HiResImage) dataSource).isAnimation ())
         {
           if (animation != null)
             animation.cancel ();
-          animation = new Worker ((SHRPictureFile2) dataSource);
+          animation = new AnimationWorker (this, (SHRPictureFile2) dataSource);
           animation.execute ();
         }
       }
@@ -411,71 +420,6 @@ public class DataPanel extends JTabbedPane
     textArea.setCaretPosition (0);
   }
 
-  // ---------------------------------------------------------------------------------//
-  private class ImagePanel extends JPanel
-  // ---------------------------------------------------------------------------------//
-  {
-    private BufferedImage image;
-    private double scale = 1;
-    private double userScale = .5;
-
-    public ImagePanel ()
-    {
-      this.setBackground (new Color (BACKGROUND, BACKGROUND, BACKGROUND));
-    }
-
-    private void setScale (double scale)
-    {
-      this.userScale = scale;
-    }
-
-    private void setImage (BufferedImage image)
-    {
-      this.image = image;
-      int width, height;
-
-      if (image != null)
-      {
-        Graphics2D g2 = image.createGraphics ();
-        g2.setRenderingHint (RenderingHints.KEY_ANTIALIASING,
-            RenderingHints.VALUE_ANTIALIAS_ON);
-        width = image.getWidth ();
-        height = image.getHeight ();
-      }
-      else
-        width = height = 0;
-
-      if (true)
-      {
-        if (width < 400 && width > 0)
-          scale = (400 - 1) / width + 1;
-        else
-          scale = 1;
-        if (scale > 4)
-          scale = 4;
-      }
-
-      scale *= userScale;
-
-      setPreferredSize (new Dimension ((int) (width * scale), (int) (height * scale)));
-      repaint ();
-    }
-
-    @Override
-    public void paintComponent (Graphics g)
-    {
-      super.paintComponent (g);
-
-      if (image != null)
-      {
-        Graphics2D g2 = ((Graphics2D) g);
-        g2.transform (AffineTransform.getScaleInstance (scale, scale));
-        g2.drawImage (image,
-            (int) ((getWidth () - image.getWidth () * scale) / 2 / scale), 4, this);
-      }
-    }
-  }
-
   // ---------------------------------------------------------------------------------//
   @Override
   public void diskSelected (DiskSelectedEvent event)
@@ -483,6 +427,7 @@ public class DataPanel extends JTabbedPane
   {
     setSelectedIndex (0);
     setDataSource (null);
+
     if (event.getFormattedDisk () != null)
       setDataSource (event.getFormattedDisk ().getCatalog ().getDataSource ());
     else
@@ -524,7 +469,6 @@ public class DataPanel extends JTabbedPane
   {
     setSelectedIndex (0);
     setDataSource (event.getFileNode ());
-    //    FileNode node = event.getFileNode ();
   }
 
   // ---------------------------------------------------------------------------------//
@@ -549,8 +493,7 @@ public class DataPanel extends JTabbedPane
   public void setAssemblerPreferences (AssemblerPreferences assemblerPreferences)
   // ---------------------------------------------------------------------------------//
   {
-    if (currentDataSource instanceof AssemblerProgram
-        || currentDataSource instanceof BootSector)
+    if (currentDataSource instanceof AssemblerProgram || currentDataSource instanceof BootSector)
       setDataSource (currentDataSource);
   }
 
@@ -562,49 +505,4 @@ public class DataPanel extends JTabbedPane
     if (currentDataSource instanceof BasicTextFile)
       setDataSource (currentDataSource);
   }
-
-  // ---------------------------------------------------------------------------------//
-  class Worker extends SwingWorker<Void, Integer>
-  // ---------------------------------------------------------------------------------//
-  {
-    volatile boolean running;
-    SHRPictureFile2 image;
-
-    public Worker (SHRPictureFile2 image)
-    {
-      assert image.isAnimation ();
-      this.image = image;
-    }
-
-    public void cancel ()
-    {
-      running = false;
-    }
-
-    @Override
-    protected Void doInBackground () throws Exception
-    {
-      running = true;
-      try
-      {
-        while (running)
-        {
-          Thread.sleep (image.getDelay ());
-          publish (0);
-        }
-      }
-      catch (InterruptedException e)
-      {
-        e.printStackTrace ();
-      }
-      return null;
-    }
-
-    @Override
-    protected void process (List<Integer> chunks)
-    {
-      image.nextFrame ();
-      update ();
-    }
-  }
 }

src/com/bytezone/diskbrowser/gui/PaletteAction.java

@@ -12,10 +12,10 @@ class PaletteAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
   private final Palette palette;
-  private final DataPanel owner;
+  private final OutputPanel owner;
 
   // ---------------------------------------------------------------------------------//
-  PaletteAction (DataPanel owner, Palette palette)
+  PaletteAction (OutputPanel owner, Palette palette)
   // ---------------------------------------------------------------------------------//
   {
     super (palette.getName ());

src/com/bytezone/diskbrowser/gui/PreviousPaletteAction.java

@@ -17,11 +17,11 @@ import com.bytezone.diskbrowser.applefile.PaletteFactory.CycleDirection;
 class PreviousPaletteAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
-  private final DataPanel owner;
+  private final OutputPanel owner;
   private final ButtonGroup buttonGroup;
 
   // ---------------------------------------------------------------------------------//
-  PreviousPaletteAction (DataPanel owner, ButtonGroup buttonGroup)
+  PreviousPaletteAction (OutputPanel owner, ButtonGroup buttonGroup)
   // ---------------------------------------------------------------------------------//
   {
     super ("Previous Palette");

src/com/bytezone/diskbrowser/gui/PrintAction.java

@@ -16,10 +16,10 @@ import com.bytezone.diskbrowser.utilities.DefaultAction;
 class PrintAction extends DefaultAction
 // -----------------------------------------------------------------------------------//
 {
-  DataPanel owner;
+  OutputPanel owner;
 
   // ---------------------------------------------------------------------------------//
-  public PrintAction (DataPanel owner)
+  public PrintAction (OutputPanel owner)
   // ---------------------------------------------------------------------------------//
   {
     super ("Print...", "Print the contents of the output panel",

src/com/bytezone/diskbrowser/gui/RootDirectoryAction.java

@@ -3,8 +3,6 @@ package com.bytezone.diskbrowser.gui;
 import java.awt.event.ActionEvent;
 import java.awt.event.KeyEvent;
 import java.io.File;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.prefs.Preferences;
 
 import javax.swing.Action;
@@ -18,7 +16,7 @@ class RootDirectoryAction extends DefaultAction implements QuitListener
 // -----------------------------------------------------------------------------------//
 {
   private static final String prefsRootDirectory = "Root directory";
-  private final List<RootDirectoryChangeListener> listeners = new ArrayList<> ();
+
   private File rootFolder;
 
   // ---------------------------------------------------------------------------------//
@@ -27,6 +25,7 @@ class RootDirectoryAction extends DefaultAction implements QuitListener
   {
     super ("Set HOME folder...", "Defines root folder where the disk images are kept",
         "/com/bytezone/diskbrowser/icons/");
+
     putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke ("alt H"));
     putValue (Action.MNEMONIC_KEY, KeyEvent.VK_H);
 
@@ -56,14 +55,6 @@ class RootDirectoryAction extends DefaultAction implements QuitListener
     }
   }
 
-  // ---------------------------------------------------------------------------------//
-  public void addListener (RootDirectoryChangeListener listener)
-  // ---------------------------------------------------------------------------------//
-  {
-    if (!listeners.contains (listener))
-      listeners.add (listener);
-  }
-
   // ---------------------------------------------------------------------------------//
   @Override
   public void quit (Preferences prefs)
@@ -78,9 +69,7 @@ class RootDirectoryAction extends DefaultAction implements QuitListener
   public void restore (Preferences prefs)
   // ---------------------------------------------------------------------------------//
   {
-    String rootDirectory = prefs.get (prefsRootDirectory, "");
-
-    File rootDirectoryFile = new File (rootDirectory);
+    File rootDirectoryFile = new File (prefs.get (prefsRootDirectory, ""));
 
     if (!rootDirectoryFile.exists () || !rootDirectoryFile.isDirectory ())
     {
@@ -96,7 +85,7 @@ class RootDirectoryAction extends DefaultAction implements QuitListener
   {
     File oldRootFolder = rootFolder;
     rootFolder = newRootFolder;
-    for (RootDirectoryChangeListener listener : listeners)
-      listener.rootDirectoryChanged (oldRootFolder, newRootFolder);
+
+    firePropertyChange ("RootDirectory", oldRootFolder, newRootFolder);
   }
 }

src/com/bytezone/diskbrowser/gui/RootDirectoryChangeListener.java

@@ -1,10 +0,0 @@
-package com.bytezone.diskbrowser.gui;
-
-import java.io.File;
-
-// -----------------------------------------------------------------------------------//
-public interface RootDirectoryChangeListener
-// -----------------------------------------------------------------------------------//
-{
-  public void rootDirectoryChanged (File oldRootFolder, File newRootFolder);
-}

src/com/bytezone/diskbrowser/gui/SaveDiskAction.java

@@ -2,25 +2,25 @@ package com.bytezone.diskbrowser.gui;
 
 import java.awt.event.ActionEvent;
 import java.io.File;
-import java.io.IOException;
-import java.nio.file.Files;
 
 import javax.swing.JFileChooser;
 import javax.swing.JOptionPane;
 
+import com.bytezone.diskbrowser.disk.AppleDisk;
+import com.bytezone.diskbrowser.disk.Disk;
 import com.bytezone.diskbrowser.disk.FormattedDisk;
 
 // -----------------------------------------------------------------------------------//
 class SaveDiskAction extends AbstractSaveAction implements DiskSelectionListener
 // -----------------------------------------------------------------------------------//
 {
-  FormattedDisk disk;
+  FormattedDisk formattedDisk;
 
   // ---------------------------------------------------------------------------------//
   SaveDiskAction ()
   // ---------------------------------------------------------------------------------//
   {
-    super ("Save converted disk...", "Save converted disk");
+    super ("Save converted disk...", "Save converted disk", "Save converted disk");
   }
 
   // ---------------------------------------------------------------------------------//
@@ -28,35 +28,25 @@ class SaveDiskAction extends AbstractSaveAction implements DiskSelectionListener
   public void actionPerformed (ActionEvent evt)
   // ---------------------------------------------------------------------------------//
   {
-    if (disk == null)
+    if (formattedDisk == null)
     {
       JOptionPane.showMessageDialog (null, "No disk selected");
       return;
     }
 
-    if (fileChooser == null)
+    Disk disk = formattedDisk.getDisk ();
+    if (disk instanceof AppleDisk appleDisk)
     {
-      fileChooser = new JFileChooser ();
-      fileChooser.setDialogTitle ("Save converted disk");
-    }
+      int blocks = disk.getTotalBlocks ();
+      String suffix = blocks <= 560 ? ".dsk" : ".hdv";
 
-    fileChooser.setSelectedFile (new File (disk.getName () + ".dsk"));
+      setSelectedFile (new File (formattedDisk.getName () + suffix));
 
-    if (fileChooser.showSaveDialog (null) == JFileChooser.APPROVE_OPTION)
-    {
-      File file = fileChooser.getSelectedFile ();
-      try
-      {
-        Files.copy (disk.getDisk ().getFile ().toPath (), file.toPath ());
-        JOptionPane.showMessageDialog (null,
-            String.format ("File %s saved", file.getName ()));
-      }
-      catch (IOException e)
-      {
-        e.printStackTrace ();
-        JOptionPane.showMessageDialog (null, "Disk failed to save");
-      }
+      if (fileChooser.showSaveDialog (null) == JFileChooser.APPROVE_OPTION)
+        saveBuffer (appleDisk.getBuffer ());
     }
+    else
+      System.out.println ("Not an AppleDisk");        // impossible
   }
 
   // ---------------------------------------------------------------------------------//
@@ -64,7 +54,7 @@ class SaveDiskAction extends AbstractSaveAction implements DiskSelectionListener
   public void diskSelected (DiskSelectedEvent event)
   // ---------------------------------------------------------------------------------//
   {
-    this.disk = event.getFormattedDisk ();
-    setEnabled (disk != null && disk.isTempDisk ());
+    formattedDisk = event.getFormattedDisk ();
+    setEnabled (formattedDisk != null && formattedDisk.isTempDisk ());
   }
 }

src/com/bytezone/diskbrowser/gui/SaveFileAction.java

@@ -1,13 +1,15 @@
 package com.bytezone.diskbrowser.gui;
 
+import java.awt.Toolkit;
 import java.awt.event.ActionEvent;
+import java.awt.event.KeyEvent;
 import java.io.File;
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.StandardOpenOption;
 
+import javax.swing.Action;
+import javax.swing.JCheckBox;
 import javax.swing.JFileChooser;
 import javax.swing.JOptionPane;
+import javax.swing.KeyStroke;
 
 import com.bytezone.diskbrowser.applefile.AppleFileSource;
 
@@ -16,12 +18,17 @@ class SaveFileAction extends AbstractSaveAction implements FileSelectionListener
 //-----------------------------------------------------------------------------------//
 {
   AppleFileSource appleFileSource;
+  private JCheckBox formatted = new JCheckBox ("Formatted");
 
   // ---------------------------------------------------------------------------------//
   SaveFileAction ()
   // ---------------------------------------------------------------------------------//
   {
-    super ("Save file...", "Save currently selected file");
+    super ("Save file...", "Save currently selected file", "Save File");
+
+    fileChooser.setAccessory (formatted);
+    int mask = Toolkit.getDefaultToolkit ().getMenuShortcutKeyMaskEx ();
+    putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke (KeyEvent.VK_S, mask));
   }
 
   // ---------------------------------------------------------------------------------//
@@ -35,30 +42,18 @@ class SaveFileAction extends AbstractSaveAction implements FileSelectionListener
       return;
     }
 
-    if (fileChooser == null)
-    {
-      fileChooser = new JFileChooser ();
-      fileChooser.setDialogTitle ("Save File");
-    }
+    if (formatted.isSelected ())
+      setSelectedFile (new File (appleFileSource.getUniqueName () + ".txt"));
+    else
+      setSelectedFile (new File (appleFileSource.getUniqueName () + ".bin"));
 
-    fileChooser.setSelectedFile (new File (appleFileSource.getUniqueName () + ".bin"));
+    if (fileChooser.showSaveDialog (null) != JFileChooser.APPROVE_OPTION)
+      return;
 
-    if (fileChooser.showSaveDialog (null) == JFileChooser.APPROVE_OPTION)
-    {
-      File file = fileChooser.getSelectedFile ();
-      try
-      {
-        Files.write (file.toPath (), appleFileSource.getDataSource ().getBuffer (),
-            StandardOpenOption.CREATE_NEW);
-        JOptionPane.showMessageDialog (null,
-            String.format ("File %s saved", file.getName ()));
-      }
-      catch (IOException e)
-      {
-        e.printStackTrace ();
-        JOptionPane.showMessageDialog (null, "File failed to save");
-      }
-    }
+    if (formatted.isSelected ())
+      saveBuffer (appleFileSource.getDataSource ().getText ().getBytes ());
+    else
+      saveBuffer (appleFileSource.getDataSource ().getBuffer ());
   }
 
   // ---------------------------------------------------------------------------------//
@@ -67,8 +62,8 @@ class SaveFileAction extends AbstractSaveAction implements FileSelectionListener
   // ---------------------------------------------------------------------------------//
   {
     this.appleFileSource = event.appleFileSource;
-    setEnabled (
-        event.appleFileSource != null && event.appleFileSource.getDataSource () != null
-            && event.appleFileSource.getDataSource ().getBuffer () != null);
+
+    setEnabled (appleFileSource != null && appleFileSource.getDataSource () != null
+        && appleFileSource.getDataSource ().getBuffer () != null);
   }
 }

src/com/bytezone/diskbrowser/gui/SaveSectorsAction.java

@@ -2,13 +2,14 @@ package com.bytezone.diskbrowser.gui;
 
 import java.awt.event.ActionEvent;
 import java.io.File;
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.StandardOpenOption;
+import java.util.List;
 
 import javax.swing.JFileChooser;
 import javax.swing.JOptionPane;
 
+import com.bytezone.diskbrowser.disk.Disk;
+import com.bytezone.diskbrowser.disk.DiskAddress;
+
 // -----------------------------------------------------------------------------------//
 class SaveSectorsAction extends AbstractSaveAction implements SectorSelectionListener
 // -----------------------------------------------------------------------------------//
@@ -19,7 +20,7 @@ class SaveSectorsAction extends AbstractSaveAction implements SectorSelectionLis
   SaveSectorsAction ()
   // ---------------------------------------------------------------------------------//
   {
-    super ("Save sectors...", "Save currently selected sectors");
+    super ("Save sectors...", "Save currently selected sectors", "Save sectors");
     this.setEnabled (false);
   }
 
@@ -34,31 +35,16 @@ class SaveSectorsAction extends AbstractSaveAction implements SectorSelectionLis
       return;
     }
 
-    if (fileChooser == null)
-    {
-      fileChooser = new JFileChooser ();
-      fileChooser.setDialogTitle ("Save sectors");
-    }
+    // block 0 will not read when it is the only DiskAddress in the list
+    List<DiskAddress> blocks = event.getSectors ();
+    Disk disk = event.getFormattedDisk ().getDisk ();
+    byte[] buffer =
+        blocks.size () == 1 ? disk.readBlock (blocks.get (0)) : disk.readBlocks (blocks);
 
-    fileChooser.setSelectedFile (new File ("savedSectors.bin"));
+    setSelectedFile (new File ("SavedSectors.bin"));
 
     if (fileChooser.showSaveDialog (null) == JFileChooser.APPROVE_OPTION)
-    {
-      File file = fileChooser.getSelectedFile ();
-      try
-      {
-        byte[] buffer =
-            event.getFormattedDisk ().getDisk ().readBlocks (event.getSectors ());
-        Files.write (file.toPath (), buffer, StandardOpenOption.CREATE_NEW);
-        JOptionPane.showMessageDialog (null,
-            String.format ("File %s saved", file.getName ()));
-      }
-      catch (IOException e)
-      {
-        e.printStackTrace ();
-        JOptionPane.showMessageDialog (null, "File failed to save");
-      }
-    }
+      saveBuffer (buffer);
   }
 
   // ---------------------------------------------------------------------------------//

src/com/bytezone/diskbrowser/gui/ScaleAction.java

@@ -10,11 +10,11 @@ import javax.swing.KeyStroke;
 
 public class ScaleAction extends AbstractAction
 {
-  private final DataPanel owner;
+  private final OutputPanel owner;
   private double scale;
 
   // ---------------------------------------------------------------------------------//
-  public ScaleAction (DataPanel owner, double scale, int menu)
+  public ScaleAction (OutputPanel owner, double scale, int menu)
   // ---------------------------------------------------------------------------------//
   {
     super ("Scale " + scale);

src/com/bytezone/diskbrowser/gui/ScrollRuler.java

@@ -29,14 +29,14 @@ class ScrollRuler extends JComponent
   private boolean isHex = true;
   private boolean isTrackMode = true;
   private LayoutDetails layoutDetails;
-  private final JComponent image;
+  private final DiskLayoutImage diskLayoutImage;
 
   // ---------------------------------------------------------------------------------//
-  ScrollRuler (JComponent image, int orientation)
+  ScrollRuler (DiskLayoutImage diskLayoutImage, int orientation)
   // ---------------------------------------------------------------------------------//
   {
     this.orientation = orientation;
-    this.image = image;
+    this.diskLayoutImage = diskLayoutImage;
 
     // set defaults until setLayout is called
     if (orientation == HORIZONTAL)
@@ -46,20 +46,20 @@ class ScrollRuler extends JComponent
   }
 
   // ---------------------------------------------------------------------------------//
-  public void setLayout (LayoutDetails layout)
+  public void setLayout (LayoutDetails layoutDetails)
   // ---------------------------------------------------------------------------------//
   {
-    this.layoutDetails = layout;
+    this.layoutDetails = layoutDetails;
 
     // Must match the preferred size of DiskLayoutImage
     if (orientation == HORIZONTAL)
-      setPreferredSize (
-          new Dimension (layout.block.width * layout.grid.width + 1, HEIGHT));
+      setPreferredSize (new Dimension (
+          layoutDetails.block.width * layoutDetails.grid.width + 1, HEIGHT));
     else
-      setPreferredSize (
-          new Dimension (WIDTH, layout.block.height * layout.grid.height + 1));
+      setPreferredSize (new Dimension (WIDTH,
+          layoutDetails.block.height * layoutDetails.grid.height + 1));
 
-    setTrackMode (layout.grid.width == 16 || layout.grid.width == 13);
+    setTrackMode (layoutDetails.grid.width == 16 || layoutDetails.grid.width == 13);
   }
 
   // ---------------------------------------------------------------------------------//
@@ -105,7 +105,7 @@ class ScrollRuler extends JComponent
   {
     int start = (clipRect.x / width);
     int end = start + clipRect.width / width;
-    end = Math.min (end, image.getWidth () / width - 1);
+    end = Math.min (end, diskLayoutImage.getWidth () / width - 1);
 
     String format;
     int offset;
@@ -131,7 +131,7 @@ class ScrollRuler extends JComponent
   {
     int start = (clipRect.y / height);
     int end = start + clipRect.height / height;
-    end = Math.min (end, image.getHeight () / height - 1);
+    end = Math.min (end, diskLayoutImage.getHeight () / height - 1);
 
     String format = isHex ? "%04X" : "%04d";
 

src/com/bytezone/diskbrowser/gui/SectorSelectedEvent.java

@@ -12,7 +12,7 @@ class SectorSelectedEvent extends EventObject
 // -----------------------------------------------------------------------------------//
 {
   private final List<DiskAddress> sectors;
-  private final FormattedDisk owner;
+  private final FormattedDisk owner;          // for dual-format disks
   boolean redo;
 
   // ---------------------------------------------------------------------------------//
@@ -20,6 +20,7 @@ class SectorSelectedEvent extends EventObject
   // ---------------------------------------------------------------------------------//
   {
     super (source);
+
     this.sectors = sectors;
     // always store the parent if this disk is part of a dual-dos disk
     this.owner = owner.getParent () == null ? owner : owner.getParent ();
@@ -44,8 +45,10 @@ class SectorSelectedEvent extends EventObject
   // ---------------------------------------------------------------------------------//
   {
     StringBuilder text = new StringBuilder ();
-    SectorListConverter slc = new SectorListConverter (sectors);
-    text.append (slc.sectorText);
+
+    SectorListConverter sectorListConverter = new SectorListConverter (sectors);
+    text.append (sectorListConverter.sectorText);
+
     return text.toString ();
   }
 

src/com/bytezone/diskbrowser/gui/ShowFreeSectorsAction.java

@@ -5,26 +5,23 @@ import java.awt.event.KeyEvent;
 
 import javax.swing.AbstractAction;
 import javax.swing.Action;
+import javax.swing.JMenuItem;
 import javax.swing.KeyStroke;
 
 // -----------------------------------------------------------------------------------//
 class ShowFreeSectorsAction extends AbstractAction
 // -----------------------------------------------------------------------------------//
 {
-  DiskLayoutPanel panel;
-  MenuHandler mh;
-
   // ---------------------------------------------------------------------------------//
-  ShowFreeSectorsAction (MenuHandler mh, DiskLayoutPanel panel)
+  ShowFreeSectorsAction ()
   // ---------------------------------------------------------------------------------//
   {
     super ("Show free sectors");
+
     putValue (Action.SHORT_DESCRIPTION,
         "Display which sectors are marked free in the disk layout panel");
     putValue (Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke ("alt F"));
     putValue (Action.MNEMONIC_KEY, KeyEvent.VK_F);
-    this.panel = panel;
-    this.mh = mh;
   }
 
   // ---------------------------------------------------------------------------------//
@@ -32,6 +29,7 @@ class ShowFreeSectorsAction extends AbstractAction
   public void actionPerformed (ActionEvent e)
   // ---------------------------------------------------------------------------------//
   {
-    panel.setFree (mh.showFreeSectorsItem.isSelected ());
+    firePropertyChange (e.getActionCommand (), null,
+        ((JMenuItem) e.getSource ()).isSelected ());
   }
 }

src/com/bytezone/diskbrowser/gui/TreeBuilder.java

@@ -23,7 +23,7 @@ import com.bytezone.diskbrowser.utilities.Utility;
 class TreeBuilder
 // -----------------------------------------------------------------------------------//
 {
-  private static SimpleDateFormat sdf = new SimpleDateFormat ("dd MMM yyyy");
+  private static SimpleDateFormat sdf = new SimpleDateFormat ("dd LLL yyyy");
 
   private final FileComparator fileComparator = new FileComparator ();
   private final JTree tree;
@@ -219,8 +219,7 @@ class TreeBuilder
           String type = pos > 0 && !f.isDirectory () ? name.substring (pos) : "";
           String size = f.isDirectory () ? "" : String.format ("%,14d", f.length ());
           text.append (String.format ("%s  %-40.40s  %s  %-14s  %s%n",
-              f.isDirectory () ? "D" : " ", name, sdf.format (d).replace (".", ""), size,
-              type));
+              f.isDirectory () ? "D" : " ", name, sdf.format (d), size, type));
         }
       }
 

src/com/bytezone/diskbrowser/infocom/ZObject.java

@@ -57,7 +57,7 @@ class ZObject extends AbstractFile implements Comparable<ZObject>
     propertyTablePtr = header.getWord (offset + 7);
     int ptr = propertyTablePtr;
     int nameLength = header.getByte (ptr) * 2;
-    this.name = nameLength == 0 ? "<<" + id + ">>" : new ZString (header, ++ptr).value;
+    setName (nameLength == 0 ? "<<" + id + ">>" : new ZString (header, ++ptr).value);
     ptr += nameLength;
 
     // read each property
@@ -84,11 +84,11 @@ class ZObject extends AbstractFile implements Comparable<ZObject>
   {
     StringBuilder text = new StringBuilder ();
 
-    text.append (String.format ("ID       : %02X  (%<3d)  %s%n%n", id, name));
+    text.append (String.format ("ID       : %02X  (%<3d)  %s%n%n", id, getName ()));
 
-    String obj1 = parent == 0 ? "" : header.getObject (parent - 1).name;
-    String obj2 = sibling == 0 ? "" : header.getObject (sibling - 1).name;
-    String obj3 = child == 0 ? "" : header.getObject (child - 1).name;
+    String obj1 = parent == 0 ? "" : header.getObject (parent - 1).getName ();
+    String obj2 = sibling == 0 ? "" : header.getObject (sibling - 1).getName ();
+    String obj3 = child == 0 ? "" : header.getObject (child - 1).getName ();
 
     text.append (String.format ("Parent   : %02X  (%<3d)  %s%n", parent, obj1));
     text.append (String.format ("Sibling  : %02X  (%<3d)  %s%n", sibling, obj2));
@@ -132,7 +132,7 @@ class ZObject extends AbstractFile implements Comparable<ZObject>
   public String toString ()
   // ---------------------------------------------------------------------------------//
   {
-    return HexFormatter.getHexString (buffer, startPtr, HEADER_SIZE) + "   " + name;
+    return HexFormatter.getHexString (buffer, startPtr, HEADER_SIZE) + "   " + getName ();
   }
 
   // ---------------------------------------------------------------------------------//
@@ -200,7 +200,7 @@ class ZObject extends AbstractFile implements Comparable<ZObject>
       if (propertyNumber >= 19)                   // directions
       {
         ZObject object = getObject ();
-        String objectName = object == null ? "no object" : object.name;
+        String objectName = object == null ? "no object" : object.getName ();
 
         switch (length)
         {
@@ -271,8 +271,8 @@ class ZObject extends AbstractFile implements Comparable<ZObject>
         for (int i = 0; i < length; i++)
         {
           int objectId = header.getByte (ptr + i + 1);
-          text.append (
-              String.format ("%s%s", (i == 0 ? "" : ", "), getObject (objectId).name));
+          text.append (String.format ("%s%s", (i == 0 ? "" : ", "),
+              getObject (objectId).getName ()));
         }
       }
       //      else
@@ -296,6 +296,6 @@ class ZObject extends AbstractFile implements Comparable<ZObject>
   public int compareTo (ZObject o)
   // ---------------------------------------------------------------------------------//
   {
-    return this.name.compareTo (o.name);
+    return this.getName ().compareTo (o.getName ());
   }
 }

src/com/bytezone/diskbrowser/nib/WozFile.java

@@ -15,10 +15,8 @@ import com.bytezone.diskbrowser.utilities.Utility;
 public class WozFile
 //-----------------------------------------------------------------------------------//
 {
-  private static final byte[] address16prologue =
-      { (byte) 0xD5, (byte) 0xAA, (byte) 0x96 };
-  private static final byte[] address13prologue =
-      { (byte) 0xD5, (byte) 0xAA, (byte) 0xB5 };
+  private static final byte[] address16prologue = { (byte) 0xD5, (byte) 0xAA, (byte) 0x96 };
+  private static final byte[] address13prologue = { (byte) 0xD5, (byte) 0xAA, (byte) 0xB5 };
   private static final byte[] dataPrologue = { (byte) 0xD5, (byte) 0xAA, (byte) 0xAD };
   private static final byte[] epilogue = { (byte) 0xDE, (byte) 0xAA, (byte) 0xEB };
   // apparently it can be DE AA Ex
@@ -29,9 +27,9 @@ public class WozFile
   private static final int TRK_SIZE = 0x1A00;
   private static final int DATA_SIZE = TRK_SIZE - 10;
 
-  private static int[][] interleave =
-      { { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },       // 13 sector
-        { 0, 7, 14, 6, 13, 5, 12, 4, 11, 3, 10, 2, 9, 1, 8, 15 } };     // 16 sector
+  private static int[][] interleave = //
+      { { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },         // 13 sector
+          { 0, 7, 14, 6, 13, 5, 12, 4, 11, 3, 10, 2, 9, 1, 8, 15 } };     // 16 sector
 
   public final File file;
 
@@ -146,8 +144,7 @@ public class WozFile
       {
         if (info != null)
           System.out.println (info);
-        throw new DiskNibbleException (
-            String.format ("Invalid chunk name character: %02X%n", val));
+        throw new DiskNibbleException (String.format ("Invalid chunk name character: %02X%n", val));
       }
     }
 
@@ -302,9 +299,9 @@ public class WozFile
     String wozBase2 = home + "Dropbox/Examples/woz test images/WOZ 2.0/";
     String wozBase3 = home + "Dropbox/Examples/woz test images/WOZ 2.0/3.5/";
     File[] files = { new File (home + "code/python/wozardry-2.0/bill.woz"),
-                     new File (wozBase2 + "DOS 3.3 System Master.woz"),
-                     new File (wozBase1 + "DOS 3.3 System Master.woz"),
-                     new File (wozBase3 + "Apple IIgs System Disk 1.1.woz") };
+        new File (wozBase2 + "DOS 3.3 System Master.woz"),
+        new File (wozBase1 + "DOS 3.3 System Master.woz"),
+        new File (wozBase3 + "Apple IIgs System Disk 1.1.woz") };
     try
     {
       new WozFile (files[3]);
@@ -369,8 +366,7 @@ public class WozFile
       String diskTypeText = diskType == 1 ? "5.25" : "3.5";
 
       text.append (String.format ("Version ............. %d%n", wozVersion));
-      text.append (
-          String.format ("Disk type ........... %d  (%s\")%n", diskType, diskTypeText));
+      text.append (String.format ("Disk type ........... %d  (%s\")%n", diskType, diskTypeText));
       text.append (String.format ("Write protected ..... %d%n", writeProtected));
       text.append (String.format ("Synchronized ........ %d%n", synchronised));
       text.append (String.format ("Cleaned ............. %d%n", cleaned));
@@ -378,9 +374,8 @@ public class WozFile
 
       if (wozVersion > 1)
       {
-        String bootSectorFormatText =
-            bootSectorFormat == 0 ? "Unknown" : bootSectorFormat == 1 ? "16 sector"
-                : bootSectorFormat == 2 ? "13 sector" : "Hybrid";
+        String bootSectorFormatText = bootSectorFormat == 0 ? "Unknown"
+            : bootSectorFormat == 1 ? "16 sector" : bootSectorFormat == 2 ? "13 sector" : "Hybrid";
 
         text.append (String.format ("%nSides ............... %d%n", sides));
         text.append (String.format ("Boot sector format .. %d  (%s)%n", bootSectorFormat,
@@ -468,8 +463,7 @@ public class WozFile
         bitCount = val16 (rawBuffer, ptr + DATA_SIZE + 2);
 
         if (debug1)
-          System.out.println (
-              (String.format ("Bytes: %2d,  Bits: %,8d%n%n", bytesUsed, bitCount)));
+          System.out.println ((String.format ("Bytes: %2d,  Bits: %,8d%n%n", bytesUsed, bitCount)));
       }
       else
       {
@@ -612,10 +606,8 @@ public class WozFile
       for (Sector sector : sectors)
         if (sector.dataOffset > 0)
         {
-          byte[] decodedBuffer =
-              diskReader.decodeSector (newBuffer, sector.dataOffset + 3);
-          int ptr = SECTOR_SIZE
-              * (sector.trackNo * diskSectors + interleave[ndx][sector.sectorNo]);
+          byte[] decodedBuffer = diskReader.decodeSector (newBuffer, sector.dataOffset + 3);
+          int ptr = SECTOR_SIZE * (sector.trackNo * diskSectors + interleave[ndx][sector.sectorNo]);
           System.arraycopy (decodedBuffer, 0, diskBuffer, ptr, decodedBuffer.length);
         }
     }
@@ -627,8 +619,7 @@ public class WozFile
     {
       StringBuilder text = new StringBuilder ();
       if (info.wozVersion == 1)
-        text.append (
-            String.format ("WOZ1: Bytes: %2d,  Bits: %,8d%n%n", bytesUsed, bitCount));
+        text.append (String.format ("WOZ1: Bytes: %2d,  Bits: %,8d%n%n", bytesUsed, bitCount));
       else
         text.append (String.format ("WOZ2: Start: %4d,  Blocks: %2d,  Bits: %,8d%n%n",
             startingBlock, blockCount, bitCount));
@@ -728,9 +719,8 @@ public class WozFile
       String fld = info.diskType == 1 ? "Vol" : info.diskType == 2 ? "Sde" : "???";
       String dataOffsetText = dataOffset < 0 ? "" : String.format ("%04X", dataOffset);
 
-      return String.format (
-          "%s: %02X  Trk: %02X  Sct: %02X  Chk: %02X  Add: %04X  Dat: %s", fld, volume,
-          trackNo, sectorNo, checksum, addressOffset, dataOffsetText);
+      return String.format ("%s: %02X  Trk: %02X  Sct: %02X  Chk: %02X  Add: %04X  Dat: %s", fld,
+          volume, trackNo, sectorNo, checksum, addressOffset, dataOffsetText);
     }
 
     // ---------------------------------------------------------------------------------//

src/com/bytezone/diskbrowser/nufx/Binary2.java

@@ -1,4 +1,4 @@
-package com.bytezone.diskbrowser.utilities;
+package com.bytezone.diskbrowser.nufx;
 
 import java.io.IOException;
 import java.nio.file.Files;
@@ -10,6 +10,7 @@ import com.bytezone.diskbrowser.prodos.write.DiskFullException;
 import com.bytezone.diskbrowser.prodos.write.FileAlreadyExistsException;
 import com.bytezone.diskbrowser.prodos.write.ProdosDisk;
 import com.bytezone.diskbrowser.prodos.write.VolumeCatalogFullException;
+import com.bytezone.diskbrowser.utilities.Utility;
 
 // -----------------------------------------------------------------------------------//
 public class Binary2
@@ -19,11 +20,11 @@ public class Binary2
       "------------------------------------------------------"
           + "-----------------------";
 
-  Binary2Header binary2Header;
-  byte[] buffer;
-  List<Binary2Header> headers = new ArrayList<> ();
-  int totalBlocks;
-  String fileName;
+  private Binary2Header binary2Header;
+  private byte[] buffer;
+  private List<Binary2Header> headers = new ArrayList<> ();
+  private int totalBlocks;
+  private String fileName;
 
   // ---------------------------------------------------------------------------------//
   public Binary2 (Path path) throws IOException
@@ -31,18 +32,26 @@ public class Binary2
   {
     fileName = path.toFile ().getName ();
     buffer = Files.readAllBytes (path);
+    read (buffer);
+  }
+
+  // ---------------------------------------------------------------------------------//
+  private void read (byte[] buffer)
+  // ---------------------------------------------------------------------------------//
+  {
     int ptr = 0;
 
     do
     {
       binary2Header = new Binary2Header (buffer, ptr);
-      System.out.println (binary2Header);
-      headers.add (binary2Header);
+
+      ptr += ((binary2Header.eof - 1) / 128 + 2) * 128;
+      if (ptr > buffer.length)      // not enough blocks for this file
+        break;
 
       totalBlocks += binary2Header.totalBlocks;
-      ptr += ((binary2Header.eof - 1) / 128 + 1) * 128 + 128;
+      headers.add (binary2Header);
     } while (binary2Header.filesToFollow > 0);
-
   }
 
   // ---------------------------------------------------------------------------------//
@@ -57,9 +66,19 @@ public class Binary2
       byte[] dataBuffer = new byte[header.eof];       // this sux
       System.arraycopy (buffer, header.ptr + 128, dataBuffer, 0, dataBuffer.length);
 
-      disk.addFile (header.fileName, header.fileType, header.auxType, header.created,
-          header.modified, dataBuffer, header.eof);
+      if (header.compressed && dataBuffer[0] == 0x76 && dataBuffer[1] == (byte) 0xFF)
+      {
+        String name = Utility.getCString (dataBuffer, 4);
 
+        Squeeze squeeze = new Squeeze ();
+        byte[] tmp = squeeze.unSqueeze (dataBuffer);
+
+        disk.addFile (name, header.fileType, header.auxType, header.created,
+            header.modified, tmp, tmp.length);
+      }
+      else
+        disk.addFile (header.fileName, header.fileType, header.auxType, header.created,
+            header.modified, dataBuffer, header.eof);
     }
     disk.close ();
 
@@ -82,24 +101,11 @@ public class Binary2
 
     text.append (String.format ("%s%n", UNDERLINE));
 
-    //    int totalUncompressedSize = 0;
-    //    int totalCompressedSize = 0;
-
     for (Binary2Header header : headers)
-    {
       text.append (String.format ("%s%n", header.getLine ()));
-      //      totalUncompressedSize += record.getUncompressedSize ();
-      //      totalCompressedSize += record.getCompressedSize ();
-    }
 
     text.append (String.format ("%s%n", UNDERLINE));
 
-    //    float pct = 0;
-    //    if (totalUncompressedSize > 0)
-    //      pct = totalCompressedSize * 100 / totalUncompressedSize;
-    //    text.append (String.format (" Uncomp:%7d  Comp:%7d  %%of orig:%3.0f%%%n%n",
-    //        totalUncompressedSize, totalCompressedSize, pct));
-
     return text.toString ();
   }
 }

src/com/bytezone/diskbrowser/nufx/Binary2Header.java

@@ -1,4 +1,4 @@
-package com.bytezone.diskbrowser.utilities;
+package com.bytezone.diskbrowser.nufx;
 
 import static com.bytezone.diskbrowser.prodos.ProdosConstants.fileTypes;
 
@@ -6,16 +6,17 @@ import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 
 import com.bytezone.diskbrowser.prodos.write.ProdosDisk;
+import com.bytezone.diskbrowser.utilities.HexFormatter;
+import com.bytezone.diskbrowser.utilities.Utility;
 
 // -----------------------------------------------------------------------------------//
 public class Binary2Header
 // -----------------------------------------------------------------------------------//
 {
   static DateTimeFormatter formatter = DateTimeFormatter.ofPattern ("dd-LLL-yy HH:mm");
-  static String[] osTypes =
-      { "Prodos", "DOS 3.3", "Reserved", "DOS 3.2 or 3.1", "Pascal", "Macintosh MFS",
-        "Macintosh HFS", "Lisa", "CPM", "Reserved", "MS-DOS", "High Sierra (CD-ROM)",
-        "ISO 9660 (CD-ROM)", "AppleShare" };
+  static String[] osTypes = { "Prodos", "DOS 3.3", "Reserved", "DOS 3.2 or 3.1", "Pascal",
+      "Macintosh MFS", "Macintosh HFS", "Lisa", "CPM", "Reserved", "MS-DOS", "High Sierra (CD-ROM)",
+      "ISO 9660 (CD-ROM)", "AppleShare" };
 
   int ptr;
   byte[] buffer;
@@ -87,8 +88,8 @@ public class Binary2Header
   public String getLine ()
   // ---------------------------------------------------------------------------------//
   {
-    return String.format (" %-33s %3s  $%04X  %s  unc   %7d", fileName,
-        fileTypes[fileType], auxType, modified.format (formatter), eof);
+    return String.format (" %-33s %3s  $%04X  %s  unc   %7d", fileName, fileTypes[fileType],
+        auxType, modified.format (formatter), eof);
   }
 
   // ---------------------------------------------------------------------------------//
@@ -115,12 +116,13 @@ public class Binary2Header
     text.append (String.format ("Prodos storage type ... %02X%n", prodos16storageType));
     text.append (String.format ("Prodos total blocks ... %02X%n", prodos16totalBlocks));
     text.append (String.format ("Prodos eof ............ %06X  %<,d%n", prodos16eof));
-    text.append (
-        String.format ("Disk space needed ..... %08X  %<,d%n", diskSpaceRequired));
-    text.append (
-        String.format ("OS type ............... %02X  %s%n", osType, osTypes[osType]));
+    text.append (String.format ("Disk space needed ..... %08X  %<,d%n", diskSpaceRequired));
+    text.append (String.format ("OS type ............... %02X  %s%n", osType, osTypes[osType]));
     text.append (String.format ("Native file type ...... %02X%n", nativeFileType));
     text.append (String.format ("Data flags ............ %02X%n", dataFlags));
+    text.append (String.format ("  compressed .......... %s%n", compressed));
+    text.append (String.format ("  encrypted ........... %s%n", encrypted));
+    text.append (String.format ("  sparse .............. %s%n", sparsePacked));
     text.append (String.format ("Version ............... %02X%n", version));
     text.append (String.format ("Following files ....... %02X%n", filesToFollow));
 

src/com/bytezone/diskbrowser/nufx/LZW.java

@@ -1,9 +1,11 @@
-package com.bytezone.diskbrowser.utilities;
+package com.bytezone.diskbrowser.nufx;
 
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
 
+import com.bytezone.diskbrowser.utilities.Utility;
+
 // -----------------------------------------------------------------------------------//
 abstract class LZW
 // -----------------------------------------------------------------------------------//
@@ -17,7 +19,7 @@ abstract class LZW
 
   int crc;
   int crcBase;
-  int v3eof;                     // LZW/2 calculates the crc sans padding
+  int v3eof;                     // LZW/2 calculates the crc without padding
 
   private int byteBuffer;        // one character buffer
   private int bitsLeft;          // unused bits left in buffer
@@ -88,7 +90,7 @@ abstract class LZW
     }
 
     bitsLeft--;
-    boolean bit = ((byteBuffer << bitsLeft) & 0x80) == 0x80;
+    boolean bit = ((byteBuffer << bitsLeft) & 0x80) != 0;
 
     return bit;
   }

src/com/bytezone/diskbrowser/nufx/LZW1.java

@@ -1,4 +1,6 @@
-package com.bytezone.diskbrowser.utilities;
+package com.bytezone.diskbrowser.nufx;
+
+import com.bytezone.diskbrowser.utilities.Utility;
 
 // -----------------------------------------------------------------------------------//
 class LZW1 extends LZW

src/com/bytezone/diskbrowser/nufx/LZW2.java

@@ -1,4 +1,6 @@
-package com.bytezone.diskbrowser.utilities;
+package com.bytezone.diskbrowser.nufx;
+
+import com.bytezone.diskbrowser.utilities.Utility;
 
 // -----------------------------------------------------------------------------------//
 class LZW2 extends LZW

src/com/bytezone/diskbrowser/nufx/LZW3.java

@@ -0,0 +1,161 @@
+package com.bytezone.diskbrowser.nufx;
+
+// DreamGraphix LZW
+// code ported from CiderPress' DreamGraphix::UnpackDG()
+// -----------------------------------------------------------------------------------//
+public class LZW3
+// -----------------------------------------------------------------------------------//
+{
+  static final int[] bitMasks = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x1FF, 0x3FF, 0x7FF, 0xFFF };
+  static final int CLEAR_CODE = 256;
+  static final int EOF_CODE = 257;
+  static final int FIRST_FREE_CODE = 258;
+
+  int nBitMod1;
+  int nBitMask;
+  int finChar;
+  int oldCode;
+  int inCode;
+  int freeCode;
+  int maxCode;
+  int k;
+
+  int bitOffset;
+
+  int[] hashNext = new int[4096];
+  int[] hashChar = new int[4096];
+
+  int ptr = 0;
+  int iCode;
+  int[] stack = new int[32768];
+  int stackIdx = 0;
+
+  byte[] srcBuf;
+  byte[] dstBuf;
+
+  // ---------------------------------------------------------------------------------//
+  public int unpack (byte[] src, byte[] dst, int max)
+  // ---------------------------------------------------------------------------------//
+  {
+    assert max <= dst.length;
+
+    srcBuf = src;
+    dstBuf = dst;
+
+    initTable ();
+
+    int a;
+    int y;
+
+    bitOffset = 0;
+
+    while (true)
+    {
+      if (ptr > max)
+      {
+        System.out.println ("LZW3 overrun");
+        return -1;
+      }
+
+      iCode = readCode ();
+
+      if (iCode == EOF_CODE)
+        break;
+
+      if (iCode == CLEAR_CODE)
+      {
+        initTable ();
+        iCode = readCode ();
+
+        oldCode = iCode;
+        k = iCode;
+        finChar = iCode;
+        dstBuf[ptr++] = (byte) iCode;
+        continue;
+      }
+
+      a = inCode = iCode;
+
+      if (iCode >= freeCode)
+      {
+        stack[stackIdx++] = finChar;
+        a = oldCode;
+      }
+
+      while (a >= 256)
+      {
+        y = a;
+        a = hashChar[y];
+        stack[stackIdx++] = a;
+        a = hashNext[y];
+      }
+
+      finChar = a;
+      k = a;
+      y = 0;
+
+      dstBuf[ptr + y++] = (byte) a;
+
+      while (stackIdx > 0)
+      {
+        a = stack[--stackIdx];
+        dstBuf[ptr + y++] = (byte) a;
+      }
+
+      ptr += y;
+
+      addCode ();
+
+      oldCode = inCode;
+
+      if (freeCode < maxCode)
+        continue;
+
+      if (nBitMod1 == 12)
+        continue;
+
+      nBitMod1++;
+      nBitMask = bitMasks[nBitMod1];
+      maxCode <<= 1;
+    }
+
+    return ptr;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  private void initTable ()
+  // ---------------------------------------------------------------------------------//
+  {
+    nBitMod1 = 9;
+    nBitMask = bitMasks[nBitMod1];
+    maxCode = 1 << nBitMod1;
+    freeCode = FIRST_FREE_CODE;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  private int readCode ()
+  // ---------------------------------------------------------------------------------//
+  {
+    int bitIdx = bitOffset & 0x07;
+    int byteIdx = bitOffset >>> 3;          // no sign extension
+
+    int iCode = srcBuf[byteIdx] & 0xFF | (srcBuf[byteIdx + 1] & 0xFF) << 8
+        | (srcBuf[byteIdx + 2] & 0xFF) << 16;
+
+    iCode >>>= bitIdx;
+    iCode &= nBitMask;
+
+    bitOffset += nBitMod1;
+
+    return iCode;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  private void addCode ()
+  // ---------------------------------------------------------------------------------//
+  {
+    hashChar[freeCode] = k;
+    hashNext[freeCode] = oldCode;
+    freeCode++;
+  }
+}

src/com/bytezone/diskbrowser/nufx/MasterHeader.java

@@ -1,11 +1,15 @@
-package com.bytezone.diskbrowser.utilities;
+package com.bytezone.diskbrowser.nufx;
+
+import com.bytezone.diskbrowser.utilities.DateTime;
+import com.bytezone.diskbrowser.utilities.FileFormatException;
+import com.bytezone.diskbrowser.utilities.HexFormatter;
+import com.bytezone.diskbrowser.utilities.Utility;
 
 // -----------------------------------------------------------------------------------//
-class MasterHeader
+public class MasterHeader
 // -----------------------------------------------------------------------------------//
 {
-  private static final byte[] NuFile =
-      { 0x4E, (byte) 0xF5, 0x46, (byte) 0xE9, 0x6C, (byte) 0xE5 };
+  private static final byte[] NuFile = { 0x4E, (byte) 0xF5, 0x46, (byte) 0xE9, 0x6C, (byte) 0xE5 };
   private static final byte[] BIN2 = { 0x0A, 0x47, 0x4C };
 
   private final int crc;
@@ -30,15 +34,6 @@ class MasterHeader
       if (Utility.isMagic (buffer, ptr, NuFile))
         break;
 
-      // internet.shk has 0x2000 bytes of text at the start
-      //      if (Utility.isMagic (buffer, 0x2000, NuFile))
-      //      {
-      //        System.out.println ("found it");
-      //        ptr = 0x2000;
-      //        bin2 = true;
-      //        break;
-      //      }
-
       if (isBin2 (buffer, ptr))
       {
         binary2Header = new Binary2Header (buffer, 0);

src/com/bytezone/diskbrowser/nufx/NuFX.java

@@ -1,4 +1,4 @@
-package com.bytezone.diskbrowser.utilities;
+package com.bytezone.diskbrowser.nufx;
 
 import static com.bytezone.diskbrowser.prodos.ProdosConstants.BLOCK_SIZE;
 
@@ -14,6 +14,7 @@ import com.bytezone.diskbrowser.prodos.write.FileAlreadyExistsException;
 import com.bytezone.diskbrowser.prodos.write.FileEntry;
 import com.bytezone.diskbrowser.prodos.write.ProdosDisk;
 import com.bytezone.diskbrowser.prodos.write.VolumeCatalogFullException;
+import com.bytezone.diskbrowser.utilities.FileFormatException;
 
 // -----------------------------------------------------------------------------------//
 public class NuFX
@@ -38,13 +39,28 @@ public class NuFX
   // ---------------------------------------------------------------------------------//
   {
     buffer = Files.readAllBytes (path);
-    volumeName = new VolumeName (path);
+    volumeName = new VolumeName (path.getFileName ().toString ());
 
+    read (buffer);
+  }
+
+  // ---------------------------------------------------------------------------------//
+  public NuFX (byte[] buffer, String fileName)
+  // ---------------------------------------------------------------------------------//
+  {
+    this.buffer = buffer;
+    this.volumeName = new VolumeName (fileName);
+
+    read (buffer);
+  }
+
+  // ---------------------------------------------------------------------------------//
+  void read (byte[] buffer)
+  // ---------------------------------------------------------------------------------//
+  {
     masterHeader = new MasterHeader (buffer);
 
-    int dataPtr = 48;
-    if (masterHeader.bin2)
-      dataPtr += 128;
+    int dataPtr = masterHeader.bin2 ? 176 : 48;
 
     if (debug)
       System.out.printf ("%s%n%n", masterHeader);
@@ -80,6 +96,7 @@ public class NuFX
       if (record.hasDisk ())
         ++totalDisks;
     }
+    //    System.out.println (toString ());
   }
 
   // ---------------------------------------------------------------------------------//
@@ -249,8 +266,8 @@ public class NuFX
     StringBuilder text = new StringBuilder ();
 
     text.append (String.format (" %-15.15s Created:%-17s Mod:%-17s   Recs:%5d%n%n",
-        volumeName.getFileName (), masterHeader.getCreated2 (),
-        masterHeader.getModified2 (), masterHeader.getTotalRecords ()));
+        volumeName.volumeName, masterHeader.getCreated2 (), masterHeader.getModified2 (),
+        masterHeader.getTotalRecords ()));
 
     text.append (" Name                        Type Auxtyp Archived"
         + "         Fmat Size Un-Length\n");
@@ -287,27 +304,19 @@ public class NuFX
 
     private String volumeName = "DiskBrowser";
     private int nameOffset = 0;
-    private Path path;
 
     // -------------------------------------------------------------------------------//
-    VolumeName (Path path)
+    VolumeName (String name)
     // -------------------------------------------------------------------------------//
     {
-      this.path = path;
-      volumeName = getFileName ();
-      int pos = volumeName.lastIndexOf ('.');
+      int pos = name.lastIndexOf ('.');
       if (pos > 0)
-        volumeName = volumeName.substring (0, pos);
-      if (volumeName.length () > 15)
-        volumeName = volumeName.substring (0, 15);
-      volumeName = volumeName.replace (' ', '.');
-    }
+        name = name.substring (0, pos);
+      if (name.length () > 15)
+        name = name.substring (0, 15);
+      name = name.replace (' ', '.');
 
-    // -------------------------------------------------------------------------------//
-    String getFileName ()
-    // -------------------------------------------------------------------------------//
-    {
-      return path.getFileName ().toString ();
+      this.volumeName = name;
     }
 
     // -------------------------------------------------------------------------------//

src/com/bytezone/diskbrowser/nufx/Record.java

@@ -1,4 +1,4 @@
-package com.bytezone.diskbrowser.utilities;
+package com.bytezone.diskbrowser.nufx;
 
 import static com.bytezone.diskbrowser.prodos.ProdosConstants.fileTypes;
 
@@ -6,18 +6,21 @@ import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.List;
 
+import com.bytezone.diskbrowser.utilities.DateTime;
+import com.bytezone.diskbrowser.utilities.FileFormatException;
+import com.bytezone.diskbrowser.utilities.Utility;
+
 // -----------------------------------------------------------------------------------//
 class Record
 // -----------------------------------------------------------------------------------//
 {
   private static final byte[] NuFX = { 0x4E, (byte) 0xF5, 0x46, (byte) 0xD8 };
-  private static String[] fileSystems =
-      { "", "ProDOS/SOS", "DOS 3.3", "DOS 3.2", "Apple II Pascal", "Macintosh HFS",
-        "Macintosh MFS", "Lisa File System", "Apple CP/M", "", "MS-DOS", "High Sierra",
-        "ISO 9660", "AppleShare" };
+  private static String[] fileSystems = { "", "ProDOS/SOS", "DOS 3.3", "DOS 3.2",
+      "Apple II Pascal", "Macintosh HFS", "Macintosh MFS", "Lisa File System",
+      "Apple CP/M", "", "MS-DOS", "High Sierra", "ISO 9660", "AppleShare" };
 
   private static String[] storage = { "", "Seedling", "Sapling", "Tree", "", "Extended",
-                                      "", "", "", "", "", "", "", "Subdirectory" };
+      "", "", "", "", "", "", "", "Subdirectory" };
 
   private static String[] accessChars = { "D", "R", "B", "", "", "I", "W", "R" };
   private static String threadFormats[] = { "unc", "sq ", "lz1", "lz2", "", "" };
@@ -250,6 +253,13 @@ class Record
     return 0;
   }
 
+  // ---------------------------------------------------------------------------------//
+  String getThreadFormatText ()
+  // ---------------------------------------------------------------------------------//
+  {
+    return threadFormats[getThreadFormat ()];
+  }
+
   // ---------------------------------------------------------------------------------//
   int getUncompressedSize ()
   // ---------------------------------------------------------------------------------//
@@ -279,6 +289,17 @@ class Record
     return size;
   }
 
+  // ---------------------------------------------------------------------------------//
+  public float getCompressedPct ()
+  // ---------------------------------------------------------------------------------//
+  {
+    float pct = 100;
+    if (getUncompressedSize () > 0)
+      pct = getCompressedSize () * 100 / getUncompressedSize ();
+
+    return pct;
+  }
+
   // ---------------------------------------------------------------------------------//
   byte[] getData ()
   // ---------------------------------------------------------------------------------//
@@ -309,9 +330,9 @@ class Record
     if (name.length () > 27)
       name = ".." + name.substring (name.length () - 25);
 
-    float pct = 100;
-    if (getUncompressedSize () > 0)
-      pct = getCompressedSize () * 100 / getUncompressedSize ();
+    //    float pct = 100;
+    //    if (getUncompressedSize () > 0)
+    //      pct = getCompressedSize () * 100 / getUncompressedSize ();
 
     String lockedFlag = (access | 0xC3) == 1 ? "+" : " ";
     String forkedFlag = hasResource () ? "+" : " ";
@@ -319,11 +340,11 @@ class Record
     if (hasDisk ())
       return String.format ("%s%-27.27s %-4s %-6s %-15s  %s  %3.0f%%   %7d", lockedFlag,
           name, "Disk", (getUncompressedSize () / 1024) + "k", archived.format2 (),
-          threadFormats[getThreadFormat ()], pct, getUncompressedSize ());
+          getThreadFormatText (), getCompressedPct (), getUncompressedSize ());
 
     return String.format ("%s%-27.27s %s%s $%04X  %-15s  %s  %3.0f%%   %7d", lockedFlag,
         name, fileTypes[fileType], forkedFlag, auxType, archived.format2 (),
-        threadFormats[getThreadFormat ()], pct, getUncompressedSize ());
+        getThreadFormatText (), getCompressedPct (), getUncompressedSize ());
   }
 
   // ---------------------------------------------------------------------------------//