tidying

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

@@ -22,7 +22,7 @@ public class VisicalcFile extends AbstractFile
 
     text.append ("Visicalc : " + name + "\n");
     text.append ("Cells    : " + sheet.size () + "\n\n");
-    text.append (sheet.getCells ());
+    text.append (sheet.getTextDisplay ());
     text.append ("\n\n");
     text.append (sheet.getLines ());
 

src/com/bytezone/diskbrowser/visicalc/Cell.java

@@ -8,15 +8,21 @@ class Cell implements Comparable<Cell>, Value
 
   final Address address;
   private final Sheet parent;
-
+  private CellType type;
   private char format = ' ';
+
   private char repeatingChar;
   private String repeat = "";
 
   private String label;
+
   private String expressionText;
   private Value value;
-  //  private boolean hasValue;
+
+  enum CellType
+  {
+    LABEL, REPEATING_CHARACTER, VALUE
+  }
 
   public Cell (Sheet parent, Address address)
   {
@@ -41,6 +47,7 @@ class Cell implements Comparable<Cell>, Value
       repeatingChar = format.charAt (2);
       for (int i = 0; i < 20; i++)
         repeat += repeatingChar;
+      type = CellType.REPEATING_CHARACTER;
     }
     else
       System.out.printf ("Unexpected format [%s]%n", format);
@@ -48,14 +55,15 @@ class Cell implements Comparable<Cell>, Value
 
   void setValue (String command)
   {
-    switch (command.charAt (0))
+    if (command.charAt (0) == '"')
     {
-      case '"':
       label = command.substring (1);
-        break;
+      type = CellType.LABEL;
-
+    }
-      default:
+    else
+    {
       expressionText = command;
+      type = CellType.VALUE;
     }
 
     // FUTURE.VC
@@ -96,13 +104,24 @@ class Cell implements Comparable<Cell>, Value
         expressionText = "D9*G5/(1-((1+G5)^-D4))";
   }
 
-  char getFormat ()
-  {
-    return format;
-  }
-
   String getText (int colWidth, char defaultFormat)
   {
+    // cell may have been formatted but no value set
+    if (type == null)
+    {
+      System.out.println (this);
+      return justify ("", colWidth);
+    }
+
+    switch (type)
+    {
+      case LABEL:
+        return justify (label, colWidth);
+
+      case REPEATING_CHARACTER:
+        return justify (repeat, colWidth);
+
+      case VALUE:
         if (hasValue ())
           if (format == 'I')
           {
@@ -117,6 +136,7 @@ class Cell implements Comparable<Cell>, Value
           else if (format == '*')
           {
             String graphFormat = String.format ("%%-%d.%ds", colWidth, colWidth);
+            // this is not finished
             return String.format (graphFormat, "********************");
           }
           else
@@ -132,26 +152,21 @@ class Cell implements Comparable<Cell>, Value
               val = val.substring (val.length () - colWidth);
             return val;
           }
+    }
+    return getError ();
+  }
 
-    String text;
+  private String justify (String text, int colWidth)
-    if (label != null)
+  {
-      text = label;
-    else if (repeatingChar > 0)
-      text = repeat;
-    else
-      text = "?";
-
     if (format == 'R')
     {
       String labelFormat = String.format ("%%%d.%ds", colWidth, colWidth);
       return (String.format (labelFormat, text));
     }
-    else
+
-    {
     String labelFormat = String.format ("%%-%d.%ds", colWidth, colWidth);
     return (String.format (labelFormat, text));
   }
-  }
 
   @Override
   public boolean hasValue ()
@@ -197,12 +212,20 @@ class Cell implements Comparable<Cell>, Value
   public String toString ()
   {
     String contents = "";
-    if (label != null)
+    if (type != null)
+      switch (type)
+      {
+        case LABEL:
           contents = "Labl: " + label;
-    else if (repeatingChar != 0)
+          break;
+        case REPEATING_CHARACTER:
           contents = "Rept: " + repeatingChar;
-    else if (expressionText != null)
+          break;
+        case VALUE:
           contents = "Exp : " + expressionText;
+          break;
+      }
+
     return String.format ("[Cell:%5s %s]", address, contents);
   }
 

src/com/bytezone/diskbrowser/visicalc/Sheet.java

@@ -151,7 +151,7 @@ public class Sheet implements Iterable<Cell>
       ptr += length + 1;            // +1 for end-of-line token
     }
 
-    if (true)
+    if (false)
     {
       System.out.println ();
       System.out.println ("Lines:");
@@ -286,7 +286,7 @@ public class Sheet implements Iterable<Cell>
     if (!line.isEmpty ())
       currentCell.setValue (line);            // expression
 
-    if (true)
+    if (false)
       System.out.printf ("[%s][%-3s][%s]%n", currentCell.address, format, line);
   }
 
@@ -332,7 +332,7 @@ public class Sheet implements Iterable<Cell>
     return text.toString ();
   }
 
-  public String getCells ()
+  public String getTextDisplay ()
   {
     StringBuilder text = new StringBuilder ();
     String longLine;