Patch largely from Josh from bug #44539 - Support for area references in formulas of rows >= 32768

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@634630 13f79535-47bb-0310-9956-ffa450edef68

src/documentation/content/xdocs/changes.xml

@@ -36,6 +36,7 @@
 
 		<!-- Don't forget to update status.xml too! -->
         <release version="3.1-beta1" date="2008-??-??">
+           <action dev="POI-DEVELOPERS" type="add">44539 - Support for area references in formulas of rows >= 32768</action>
            <action dev="POI-DEVELOPERS" type="add">44536 - Improved support for detecting read-only recommended files</action>
            <action dev="POI-DEVELOPERS" type="fix">43901 - Correctly update the internal last cell number when adding and removing cells (previously sometimes off-by-one)</action>
            <action dev="POI-DEVELOPERS" type="fix">28231 - For apparently truncated files, which are somehow still valid, now issue a truncation warning but carry on, rather than giving an exception as before</action>

src/documentation/content/xdocs/status.xml

@@ -33,6 +33,7 @@
 	<!-- Don't forget to update changes.xml too! -->
     <changes>
         <release version="3.1-beta1" date="2008-??-??">
+           <action dev="POI-DEVELOPERS" type="add">44539 - Support for area references in formulas of rows >= 32768</action>
            <action dev="POI-DEVELOPERS" type="add">44536 - Improved support for detecting read-only recommended files</action>
            <action dev="POI-DEVELOPERS" type="fix">43901 - Correctly update the internal last cell number when adding and removing cells (previously sometimes off-by-one)</action>
            <action dev="POI-DEVELOPERS" type="fix">44504 - Added initial support for recognising external functions like YEARFRAC and ISEVEN (using NameXPtg), via LinkTable support</action>

src/java/org/apache/poi/hssf/record/SharedFormulaRecord.java

@@ -1,4 +1,3 @@
-
 /* ====================================================================
    Licensed to the Apache Software Foundation (ASF) under one or more
    contributor license agreements.  See the NOTICE file distributed with
@@ -16,7 +15,6 @@
    limitations under the License.
 ==================================================================== */
  
-
 package org.apache.poi.hssf.record;
 
 import java.util.Stack;
@@ -34,10 +32,7 @@ import org.apache.poi.hssf.record.formula.*;
  * record types.
  * @author Danny Mui at apache dot org
  */
-
+public final class SharedFormulaRecord extends Record {
-public class SharedFormulaRecord
-    extends Record
-{
 	 public final static short   sid = 0x4BC;
     
     private int               field_1_first_row;
@@ -257,17 +252,18 @@ public class SharedFormulaRecord
       }
     }
     
-    private short fixupRelativeColumn(int currentcolumn, short column, boolean relative) {
+    private int fixupRelativeColumn(int currentcolumn, int column, boolean relative) {
         if(relative) {
-    		if((column&128)!=0) column=(short)(column-256);
+            // mask out upper bits to produce 'wrapping' at column 256 ("IV")
-    		column+=currentcolumn;
+            return (column + currentcolumn) & 0x00FF;
         }
         return column;
     }
 
-	private short fixupRelativeRow(int currentrow, short row, boolean relative) {
+    private int fixupRelativeRow(int currentrow, int row, boolean relative) {
         if(relative) {
-			row+=currentrow;
+            // mask out upper bits to produce 'wrapping' at row 65536
+            return (row+currentrow) & 0x00FFFF;
         }
         return row;
     }

src/java/org/apache/poi/hssf/record/formula/Area3DPtg.java

@@ -41,10 +41,10 @@ public class Area3DPtg extends Ptg implements AreaI
 	public final static byte sid = 0x3b;
 	private final static int SIZE = 11; // 10 + 1 for Ptg
 	private short field_1_index_extern_sheet;
-	private short field_2_first_row;
+	private int field_2_first_row;
-	private short field_3_last_row;
+	private int field_3_last_row;
-	private short field_4_first_column;
+	private int field_4_first_column;
-	private short field_5_last_column;
+	private int field_5_last_column;
 
 	private BitField rowRelative = BitFieldFactory.getInstance( 0x8000 );
 	private BitField colRelative = BitFieldFactory.getInstance( 0x4000 );
@@ -64,10 +64,10 @@ public class Area3DPtg extends Ptg implements AreaI
 	public Area3DPtg(RecordInputStream in)
 	{
 		field_1_index_extern_sheet = in.readShort();
-		field_2_first_row = in.readShort();
+		field_2_first_row = in.readUShort();
-		field_3_last_row = in.readShort();
+		field_3_last_row = in.readUShort();
-		field_4_first_column = in.readShort();
+		field_4_first_column = in.readUShort();
-		field_5_last_column = in.readShort();
+		field_5_last_column = in.readUShort();
 	}
 
 	public Area3DPtg(short firstRow, short lastRow, short firstColumn, short lastColumn,
@@ -107,10 +107,10 @@ public class Area3DPtg extends Ptg implements AreaI
 	{
 		array[0 + offset] = (byte) ( sid + ptgClass );
 		LittleEndian.putShort( array, 1 + offset, getExternSheetIndex() );
-		LittleEndian.putShort( array, 3 + offset, getFirstRow() );
+		LittleEndian.putShort( array, 3 + offset, (short)getFirstRow() );
-		LittleEndian.putShort( array, 5 + offset, getLastRow() );
+		LittleEndian.putShort( array, 5 + offset, (short)getLastRow() );
-		LittleEndian.putShort( array, 7 + offset, getFirstColumnRaw() );
+		LittleEndian.putShort( array, 7 + offset, (short)getFirstColumnRaw() );
-		LittleEndian.putShort( array, 9 + offset, getLastColumnRaw() );
+		LittleEndian.putShort( array, 9 + offset, (short)getLastColumnRaw() );
 	}
 
 	public int getSize()
@@ -128,32 +128,32 @@ public class Area3DPtg extends Ptg implements AreaI
 		field_1_index_extern_sheet = index;
 	}
 
-	public short getFirstRow()
+	public int getFirstRow()
 	{
 		return field_2_first_row;
 	}
 
-	public void setFirstRow( short row )
+	public void setFirstRow( int row )
 	{
 		field_2_first_row = row;
 	}
 
-	public short getLastRow()
+	public int getLastRow()
 	{
 		return field_3_last_row;
 	}
 
-	public void setLastRow( short row )
+	public void setLastRow( int row )
 	{
 		field_3_last_row = row;
 	}
 
-	public short getFirstColumn()
+	public int getFirstColumn()
 	{
-		return (short) ( field_4_first_column & 0xFF );
+		return field_4_first_column & 0xFF;
 	}
 
-	public short getFirstColumnRaw()
+	public int getFirstColumnRaw()
 	{
 		return field_4_first_column;
 	}
@@ -179,12 +179,12 @@ public class Area3DPtg extends Ptg implements AreaI
 		field_4_first_column = column;
 	}
 
-	public short getLastColumn()
+	public int getLastColumn()
 	{
-		return (short) ( field_5_last_column & 0xFF );
+		return field_5_last_column & 0xFF;
 	}
 
-	public short getLastColumnRaw()
+	public int getLastColumnRaw()
 	{
 		return field_5_last_column;
 	}
@@ -216,7 +216,7 @@ public class Area3DPtg extends Ptg implements AreaI
 	 */
 	public void setFirstRowRelative( boolean rel )
 	{
-		field_4_first_column = rowRelative.setShortBoolean( field_4_first_column, rel );
+		field_4_first_column = rowRelative.setBoolean( field_4_first_column, rel );
 	}
 
 	/**
@@ -224,7 +224,7 @@ public class Area3DPtg extends Ptg implements AreaI
 	 */
 	public void setFirstColRelative( boolean rel )
 	{
-		field_4_first_column = colRelative.setShortBoolean( field_4_first_column, rel );
+		field_4_first_column = colRelative.setBoolean( field_4_first_column, rel );
 	}
 
 	/**
@@ -233,7 +233,7 @@ public class Area3DPtg extends Ptg implements AreaI
 	 */
 	public void setLastRowRelative( boolean rel )
 	{
-		field_5_last_column = rowRelative.setShortBoolean( field_5_last_column, rel );
+		field_5_last_column = rowRelative.setBoolean( field_5_last_column, rel );
 	}
 
 	/**
@@ -241,7 +241,7 @@ public class Area3DPtg extends Ptg implements AreaI
 	 */
 	public void setLastColRelative( boolean rel )
 	{
-		field_5_last_column = colRelative.setShortBoolean( field_5_last_column, rel );
+		field_5_last_column = colRelative.setBoolean( field_5_last_column, rel );
 	}
 
 

src/java/org/apache/poi/hssf/record/formula/AreaAPtg.java

@@ -36,16 +36,14 @@ import org.apache.poi.hssf.model.Workbook;
  * @author Jason Height (jheight at chariot dot net dot au)
  */
 
-public class AreaAPtg
+public final class AreaAPtg extends AreaPtg {
-    extends AreaPtg
-{
     public final static short sid  = 0x65;
 
     protected AreaAPtg() {
       //Required for clone methods
     }
 
-    public AreaAPtg(short firstRow, short lastRow, short firstColumn, short lastColumn, boolean firstRowRelative, boolean lastRowRelative, boolean firstColRelative, boolean lastColRelative) {
+    public AreaAPtg(int firstRow, int lastRow, int firstColumn, int lastColumn, boolean firstRowRelative, boolean lastRowRelative, boolean firstColRelative, boolean lastColRelative) {
       super(firstRow, lastRow, firstColumn, lastColumn, firstRowRelative, lastRowRelative, firstColRelative, lastColRelative);
     }
 

src/java/org/apache/poi/hssf/record/formula/AreaI.java

@@ -24,22 +24,22 @@ public interface AreaI {
     /**
      * @return the first row in the area
      */
-    public short getFirstRow();
+    public int getFirstRow();
 
     /**
      * @return last row in the range (x2 in x1,y1-x2,y2)
      */
-    public short getLastRow();
+    public int getLastRow();
     
     /**
      * @return the first column number in the area.
      */
-    public short getFirstColumn();
+    public int getFirstColumn();
     
     /**
      * @return lastcolumn in the area
      */
-    public short getLastColumn();
+    public int getLastColumn();
     
     /**
      * @return isrelative first column to relative or not

src/java/org/apache/poi/hssf/record/formula/AreaPtg.java

@@ -38,10 +38,14 @@ public class AreaPtg
 {
     public final static short sid  = 0x25;
     private final static int  SIZE = 9;
-    private short             field_1_first_row;
+    /** zero based, unsigned 16 bit */
-    private short             field_2_last_row;
+    private int             field_1_first_row;
-    private short             field_3_first_column;
+    /** zero based, unsigned 16 bit */
-    private short             field_4_last_column;
+    private int             field_2_last_row;
+    /** zero based, unsigned 8 bit */
+    private int             field_3_first_column;
+    /** zero based, unsigned 8 bit */
+    private int             field_4_last_column;
     
     private final static BitField   rowRelative = BitFieldFactory.getInstance(0x8000);
     private final static BitField   colRelative = BitFieldFactory.getInstance(0x4000);
@@ -55,9 +59,9 @@ public class AreaPtg
         AreaReference ar = new AreaReference(arearef);
         CellReference firstCell = ar.getFirstCell();
         CellReference lastCell = ar.getLastCell();
-        setFirstRow((short)firstCell.getRow());
+        setFirstRow(firstCell.getRow());
         setFirstColumn(firstCell.getCol());
-        setLastRow((short)lastCell.getRow());
+        setLastRow(lastCell.getRow());
         setLastColumn(lastCell.getCol());
         setFirstColRelative(!firstCell.isColAbsolute());
         setLastColRelative(!lastCell.isColAbsolute());
@@ -65,7 +69,13 @@ public class AreaPtg
         setLastRowRelative(!lastCell.isRowAbsolute());        
     }
     
-    public AreaPtg(short firstRow, short lastRow, short firstColumn, short lastColumn, boolean firstRowRelative, boolean lastRowRelative, boolean firstColRelative, boolean lastColRelative) {
+    public AreaPtg(int firstRow, int lastRow, int firstColumn, int lastColumn,
+            boolean firstRowRelative, boolean lastRowRelative, boolean firstColRelative, boolean lastColRelative) {
+        
+        checkColumnBounds(firstColumn);
+        checkColumnBounds(lastColumn);
+        checkRowBounds(firstRow);
+        checkRowBounds(lastRow);
       setFirstRow(firstRow);
       setLastRow(lastRow);
       setFirstColumn(firstColumn);
@@ -76,12 +86,23 @@ public class AreaPtg
       setLastColRelative(lastColRelative);
     }    
 
+    private static void checkColumnBounds(int colIx) {
+        if((colIx & 0x0FF) != colIx) {
+            throw new IllegalArgumentException("colIx (" + colIx + ") is out of range");
+        }
+    }
+    private static void checkRowBounds(int rowIx) {
+        if((rowIx & 0x0FFFF) != rowIx) {
+            throw new IllegalArgumentException("rowIx (" + rowIx + ") is out of range");
+        }
+    }
+
     public AreaPtg(RecordInputStream in)
     {
-        field_1_first_row    = in.readShort();
+        field_1_first_row    = in.readUShort();
-        field_2_last_row     = in.readShort();
+        field_2_last_row     = in.readUShort();
-        field_3_first_column = in.readShort();
+        field_3_first_column = in.readUShort();
-        field_4_last_column  = in.readShort();
+        field_4_last_column  = in.readUShort();
         //System.out.println(toString());
     }
     
@@ -110,10 +131,10 @@ public class AreaPtg
 
     public void writeBytes(byte [] array, int offset) {
         array[offset] = (byte) (sid + ptgClass);
-        LittleEndian.putShort(array,offset+1,field_1_first_row);
+        LittleEndian.putShort(array,offset+1,(short)field_1_first_row);
-        LittleEndian.putShort(array,offset+3,field_2_last_row);
+        LittleEndian.putShort(array,offset+3,(short)field_2_last_row);
-        LittleEndian.putShort(array,offset+5,field_3_first_column);
+        LittleEndian.putShort(array,offset+5,(short)field_3_first_column);
-        LittleEndian.putShort(array,offset+7,field_4_last_column);        
+        LittleEndian.putShort(array,offset+7,(short)field_4_last_column);        
     }
 
     public int getSize()
@@ -124,42 +145,42 @@ public class AreaPtg
     /**
      * @return the first row in the area
      */
-    public short getFirstRow()
+    public int getFirstRow()
     {
         return field_1_first_row;
     }
 
     /**
      * sets the first row
-     * @param row number (0-based)
+     * @param rowIx number (0-based)
      */
-    public void setFirstRow(short row)
+    public void setFirstRow(int rowIx) {
-    {
+        checkRowBounds(rowIx);
-        field_1_first_row = row;
+        field_1_first_row = rowIx;
     }
 
     /**
      * @return last row in the range (x2 in x1,y1-x2,y2)
      */
-    public short getLastRow()
+    public int getLastRow()
     {
         return field_2_last_row;
     }
 
     /**
-     * @param row last row number in the area 
+     * @param rowIx last row number in the area 
      */
-    public void setLastRow(short row)
+    public void setLastRow(int rowIx) {
-    {
+        checkRowBounds(rowIx);
-        field_2_last_row = row;
+        field_2_last_row = rowIx;
     }
 
     /**
      * @return the first column number in the area.
      */
-    public short getFirstColumn()
+    public int getFirstColumn()
     {
-        return columnMask.getShortValue(field_3_first_column);
+        return columnMask.getValue(field_3_first_column);
     }
 
     /**
@@ -167,7 +188,7 @@ public class AreaPtg
      */
     public short getFirstColumnRaw()
     {
-        return field_3_first_column;
+        return (short) field_3_first_column; // TODO
     }
 
     /**
@@ -183,7 +204,7 @@ public class AreaPtg
      * @param rel is relative or not.
      */
     public void setFirstRowRelative(boolean rel) {
-        field_3_first_column=rowRelative.setShortBoolean(field_3_first_column,rel);
+        field_3_first_column=rowRelative.setBoolean(field_3_first_column,rel);
     }
 
     /**
@@ -198,21 +219,21 @@ public class AreaPtg
      * set whether the first column is relative 
      */
     public void setFirstColRelative(boolean rel) {
-        field_3_first_column=colRelative.setShortBoolean(field_3_first_column,rel);
+        field_3_first_column=colRelative.setBoolean(field_3_first_column,rel);
     }
 
     /**
      * set the first column in the area
      */
-    public void setFirstColumn(short column)
+    public void setFirstColumn(int colIx) {
-    {
+        checkColumnBounds(colIx);
-    	field_3_first_column=columnMask.setShortValue(field_3_first_column, column);
+    	field_3_first_column=columnMask.setValue(field_3_first_column, colIx);
     }
 
     /**
      * set the first column irespective of the bitmasks
      */
-    public void setFirstColumnRaw(short column)
+    public void setFirstColumnRaw(int column)
     {
         field_3_first_column = column;
     }
@@ -220,9 +241,9 @@ public class AreaPtg
     /**
      * @return lastcolumn in the area
      */
-    public short getLastColumn()
+    public int getLastColumn()
     {
-        return columnMask.getShortValue(field_4_last_column);
+        return columnMask.getValue(field_4_last_column);
     }
 
     /**
@@ -230,7 +251,7 @@ public class AreaPtg
      */
     public short getLastColumnRaw()
     {
-        return field_4_last_column;
+        return (short) field_4_last_column;
     }
 
     /**
@@ -247,7 +268,7 @@ public class AreaPtg
      * <code>false</code>
      */
     public void setLastRowRelative(boolean rel) {
-        field_4_last_column=rowRelative.setShortBoolean(field_4_last_column,rel);
+        field_4_last_column=rowRelative.setBoolean(field_4_last_column,rel);
     }
 
     /**
@@ -262,16 +283,16 @@ public class AreaPtg
      * set whether the last column should be relative or not
      */
     public void setLastColRelative(boolean rel) {
-        field_4_last_column=colRelative.setShortBoolean(field_4_last_column,rel);
+        field_4_last_column=colRelative.setBoolean(field_4_last_column,rel);
     }
     
 
     /**
      * set the last column in the area
      */
-    public void setLastColumn(short column)
+    public void setLastColumn(int colIx) {
-    {
+        checkColumnBounds(colIx);
-    	field_4_last_column=columnMask.setShortValue(field_4_last_column, column);
+    	field_4_last_column=columnMask.setValue(field_4_last_column, colIx);
     }
 
     /**

src/java/org/apache/poi/hssf/record/formula/AreaVPtg.java

@@ -36,7 +36,7 @@ import org.apache.poi.hssf.model.Workbook;
  * @author Jason Height (jheight at chariot dot net dot au)
  */
 
-public class AreaVPtg
+public final class AreaVPtg
     extends AreaPtg
 {
     public final static short sid  = 0x45;
@@ -45,7 +45,7 @@ public class AreaVPtg
       //Required for clone methods
     }
 
-    public AreaVPtg(short firstRow, short lastRow, short firstColumn, short lastColumn, boolean firstRowRelative, boolean lastRowRelative, boolean firstColRelative, boolean lastColRelative) {
+    public AreaVPtg(int firstRow, int lastRow, int firstColumn, int lastColumn, boolean firstRowRelative, boolean lastRowRelative, boolean firstColRelative, boolean lastColRelative) {
       super(firstRow, lastRow, firstColumn, lastColumn, firstRowRelative, lastRowRelative, firstColRelative, lastColRelative);
     }
 

src/java/org/apache/poi/hssf/record/formula/Ref3DPtg.java

@@ -18,16 +18,14 @@
 
 package org.apache.poi.hssf.record.formula;
 
-import org.apache.poi.util.LittleEndian;
-
-import org.apache.poi.hssf.util.RangeAddress;
-import org.apache.poi.hssf.util.CellReference;
-import org.apache.poi.hssf.util.SheetReferences;
-import org.apache.poi.hssf.model.Workbook;
-import org.apache.poi.util.BitField;
-import org.apache.poi.util.BitFieldFactory;
 import org.apache.poi.hssf.model.Workbook;
 import org.apache.poi.hssf.record.RecordInputStream;
+import org.apache.poi.hssf.util.CellReference;
+import org.apache.poi.hssf.util.RangeAddress;
+import org.apache.poi.hssf.util.SheetReferences;
+import org.apache.poi.util.BitField;
+import org.apache.poi.util.BitFieldFactory;
+import org.apache.poi.util.LittleEndian;
 
 /**
  * Title:        Reference 3D Ptg <P>
@@ -42,8 +40,14 @@ public class Ref3DPtg extends Ptg {
     public final static byte sid  = 0x3a;
     private final static int  SIZE = 7; // 6 + 1 for Ptg
     private short             field_1_index_extern_sheet;
-    private short             field_2_row;
+    /** The row index - zero based unsigned 16 bit value */
-    private short             field_3_column;
+    private int            field_2_row;
+    /** Field 2 
+     * - lower 8 bits is the zero based unsigned byte column index 
+     * - bit 16 - isRowRelative
+     * - bit 15 - isColumnRelative 
+     */
+    private int             field_3_column;
     private BitField         rowRelative = BitFieldFactory.getInstance(0x8000);
     private BitField         colRelative = BitFieldFactory.getInstance(0x4000);
 
@@ -58,8 +62,8 @@ public class Ref3DPtg extends Ptg {
     
     public Ref3DPtg(String cellref, short externIdx ) {
         CellReference c= new CellReference(cellref);
-        setRow((short) c.getRow());
+        setRow(c.getRow());
-        setColumn((short) c.getCol());
+        setColumn(c.getCol());
         setColRelative(!c.isColAbsolute());
         setRowRelative(!c.isRowAbsolute());   
         setExternSheetIndex(externIdx);
@@ -81,8 +85,8 @@ public class Ref3DPtg extends Ptg {
     public void writeBytes(byte [] array, int offset) {
         array[ 0 + offset ] = (byte) (sid + ptgClass);
         LittleEndian.putShort(array, 1 + offset , getExternSheetIndex());
-        LittleEndian.putShort(array, 3 + offset , getRow());
+        LittleEndian.putShort(array, 3 + offset , (short)getRow());
-        LittleEndian.putShort(array, 5 + offset , getColumnRaw());
+        LittleEndian.putShort(array, 5 + offset , (short)getColumnRaw());
     }
 
     public int getSize() {
@@ -97,19 +101,19 @@ public class Ref3DPtg extends Ptg {
         field_1_index_extern_sheet = index;
     }
 
-    public short getRow() {
+    public int getRow() {
         return field_2_row;
     }
 
-    public void setRow(short row) {
+    public void setRow(int row) {
         field_2_row = row;
     }
 
-    public short getColumn() {
+    public int getColumn() {
-        return ( short ) (field_3_column & 0xFF);
+        return field_3_column & 0xFF;
     }
 
-    public short getColumnRaw() {
+    public int getColumnRaw() {
         return field_3_column;
     }
 
@@ -119,7 +123,7 @@ public class Ref3DPtg extends Ptg {
     }
     
     public void setRowRelative(boolean rel) {
-        field_3_column=rowRelative.setShortBoolean(field_3_column,rel);
+        field_3_column=rowRelative.setBoolean(field_3_column,rel);
     }
     
     public boolean isColRelative()
@@ -128,7 +132,7 @@ public class Ref3DPtg extends Ptg {
     }
     
     public void setColRelative(boolean rel) {
-        field_3_column=colRelative.setShortBoolean(field_3_column,rel);
+        field_3_column=colRelative.setBoolean(field_3_column,rel);
     }
     public void setColumn(short column) {
         field_3_column &= 0xFF00;
@@ -197,5 +201,4 @@ public class Ref3DPtg extends Ptg {
      ptg.setClass(ptgClass);
      return ptg;
    }
-
 }

src/java/org/apache/poi/hssf/record/formula/RefAPtg.java

@@ -1,4 +1,3 @@
-
 /* ====================================================================
    Licensed to the Apache Software Foundation (ASF) under one or more
    contributor license agreements.  See the NOTICE file distributed with
@@ -16,34 +15,23 @@
    limitations under the License.
 ==================================================================== */
 
-/*
- * ValueReferencePtg.java
- *
- * Created on November 21, 2001, 5:27 PM
- */
 package org.apache.poi.hssf.record.formula;
 
-import org.apache.poi.util.LittleEndian;
-import org.apache.poi.util.BitField;
-
 import org.apache.poi.hssf.record.RecordInputStream;
-import org.apache.poi.hssf.util.CellReference;
-import org.apache.poi.hssf.model.Workbook;
 
 /**
  * RefNAPtg
  * @author Jason Height (jheight at chariot dot net dot au)
  */
 
-public class RefAPtg extends ReferencePtg
+public final class RefAPtg extends ReferencePtg {
-{
     public final static byte sid  = 0x64;
 
     protected RefAPtg() {
       super();
     }
 
-    public RefAPtg(short row, short column, boolean isRowRelative, boolean isColumnRelative) {
+    public RefAPtg(int row, int column, boolean isRowRelative, boolean isColumnRelative) {
       super(row, column, isRowRelative, isColumnRelative);
     }
 

src/java/org/apache/poi/hssf/record/formula/RefVPtg.java

@@ -1,4 +1,3 @@
-
 /* ====================================================================
    Licensed to the Apache Software Foundation (ASF) under one or more
    contributor license agreements.  See the NOTICE file distributed with
@@ -18,27 +17,20 @@
 
 package org.apache.poi.hssf.record.formula;
 
-import org.apache.poi.util.LittleEndian;
-import org.apache.poi.util.BitField;
-
 import org.apache.poi.hssf.record.RecordInputStream;
-import org.apache.poi.hssf.util.CellReference;
-import org.apache.poi.hssf.model.Workbook;
 
 /**
  * RefVPtg
  * @author Jason Height (jheight at chariot dot net dot au)
  */
-
+public final class RefVPtg extends ReferencePtg {
-public class RefVPtg extends ReferencePtg
-{
   public final static byte sid  = 0x44;
 
   protected RefVPtg() {
     super();
   }
 
-  public RefVPtg(short row, short column, boolean isRowRelative, boolean isColumnRelative) {
+  public RefVPtg(int row, int column, boolean isRowRelative, boolean isColumnRelative) {
     super(row, column, isRowRelative, isColumnRelative);
   }
 

src/java/org/apache/poi/hssf/record/formula/ReferencePtg.java

@@ -31,26 +31,22 @@ import org.apache.poi.hssf.record.RecordInputStream;
  * @author Jason Height (jheight at chariot dot net dot au)
  */
 
-public class ReferencePtg extends Ptg
+public class ReferencePtg extends Ptg {
-{
     private final static int SIZE = 5;
     public final static byte sid  = 0x24;
     private final static int MAX_ROW_NUMBER = 65536;             
-    //public final static byte sid = 0x44;
 
-   /** 
+   /** The row index - zero based unsigned 16 bit value */
-     * The row number, between 0 and 65535, but stored as a signed
+    private int            field_1_row;
-     *  short between -32767 and 32768.
+    /** Field 2 
-     * Take care about which version you fetch back!
+     * - lower 8 bits is the zero based unsigned byte column index 
+     * - bit 16 - isRowRelative
+     * - bit 15 - isColumnRelative 
      */
-    private short            field_1_row;
+    private int            field_2_col;
-    /**
+    private static final BitField         rowRelative = BitFieldFactory.getInstance(0x8000);
-     * The column number, between 0 and ??
+    private static final BitField         colRelative = BitFieldFactory.getInstance(0x4000);
-     */
+    private static final BitField         column      = BitFieldFactory.getInstance(0x00FF);
-    private short            field_2_col;
-    private BitField         rowRelative = BitFieldFactory.getInstance(0x8000);
-    private BitField         colRelative = BitFieldFactory.getInstance(0x4000);
-    private BitField         column      = BitFieldFactory.getInstance(0x3FFF);
 
     protected ReferencePtg() {
       //Required for clone methods
@@ -62,13 +58,13 @@ public class ReferencePtg extends Ptg
      */
     public ReferencePtg(String cellref) {
         CellReference c= new CellReference(cellref);
-        setRow((short) c.getRow());
+        setRow(c.getRow());
-        setColumn((short) c.getCol());
+        setColumn(c.getCol());
         setColRelative(!c.isColAbsolute());
         setRowRelative(!c.isRowAbsolute());
     }
     
-    public ReferencePtg(short row, short column, boolean isRowRelative, boolean isColumnRelative) {
+    public ReferencePtg(int row, int column, boolean isRowRelative, boolean isColumnRelative) {
       setRow(row);
       setColumn(column);
       setRowRelative(isRowRelative);
@@ -79,8 +75,8 @@ public class ReferencePtg extends Ptg
 
     public ReferencePtg(RecordInputStream in)
     {
-        field_1_row = in.readShort();
+        field_1_row = in.readUShort();
-        field_2_col = in.readShort();
+        field_2_col = in.readUShort();
     }
     
     public String getRefPtgName() {
@@ -104,33 +100,23 @@ public class ReferencePtg extends Ptg
     {
         array[offset] = (byte) (sid + ptgClass);
 
-        LittleEndian.putShort(array,offset+1,field_1_row);
+        LittleEndian.putShort(array, offset+1, (short)field_1_row);
-        LittleEndian.putShort(array,offset+3,field_2_col);
+        LittleEndian.putShort(array, offset+3, (short)field_2_col);
     }
 
-    public void setRow(short row)
-    {
-        field_1_row = row;
-    }
     public void setRow(int row)
     {
         if(row < 0 || row >= MAX_ROW_NUMBER) {
            throw new IllegalArgumentException("The row number, when specified as an integer, must be between 0 and " + MAX_ROW_NUMBER);
         }
-        
+        field_1_row = row;
-        // Save, wrapping as needed
-        if(row > Short.MAX_VALUE) {
-        	field_1_row = (short)(row - MAX_ROW_NUMBER);
-        } else {
-        	field_1_row = (short)row;
-        }
     }
 
     /**
      * Returns the row number as a short, which will be
      *  wrapped (negative) for values between 32769 and 65535
      */
-    public short getRow()
+    public int getRow()
     {
         return field_1_row;
     }
@@ -151,7 +137,7 @@ public class ReferencePtg extends Ptg
     }
     
     public void setRowRelative(boolean rel) {
-        field_2_col=rowRelative.setShortBoolean(field_2_col,rel);
+        field_2_col=rowRelative.setBoolean(field_2_col,rel);
     }
     
     public boolean isColRelative()
@@ -160,27 +146,29 @@ public class ReferencePtg extends Ptg
     }
     
     public void setColRelative(boolean rel) {
-        field_2_col=colRelative.setShortBoolean(field_2_col,rel);
+        field_2_col=colRelative.setBoolean(field_2_col,rel);
     }
 
-    public void setColumnRaw(short col)
+    public void setColumnRaw(int col)
     {
         field_2_col = col;
     }
 
-    public short getColumnRaw()
+    public int getColumnRaw()
     {
         return field_2_col;
     }
 
-    public void setColumn(short col)
+    public void setColumn(int col)
     {
-    	field_2_col = column.setShortValue(field_2_col, col);
+        if(col < 0 || col > 0x100) {
+            throw new IllegalArgumentException("Specified colIx (" + col + ") is out of range");
+        }
+    	field_2_col = column.setValue(field_2_col, col);
     }
 
-    public short getColumn()
+    public int getColumn() {
-    {
+    	return column.getValue(field_2_col);
-    	return column.getShortValue(field_2_col);
     }
 
     public int getSize()

src/java/org/apache/poi/hssf/usermodel/HSSFRow.java

@@ -287,15 +287,28 @@ public final class HSSFRow implements Comparable {
     }
 
     /**
-     * get the hssfcell representing a given column (logical cell) 0-based.  If you
+     * Get the hssfcell representing a given column (logical cell)
-     * ask for a cell that is not defined....you get a null.
+     *  0-based.  If you ask for a cell that is not defined....
+     *  you get a null.
+     * Short method signature provided to retain binary
+     *  compatibility.
      *
      * @param cellnum  0 based column number
      * @return HSSFCell representing that column or null if undefined.
      */
-
     public HSSFCell getCell(short cellnum)
     {
+   		return getCell((int)cellnum);
+    }
+    /**
+     * Get the hssfcell representing a given column (logical cell)
+     *  0-based.  If you ask for a cell that is not defined....
+     *  you get a null.
+     *
+     * @param cellnum  0 based column number
+     * @return HSSFCell representing that column or null if undefined.
+     */
+    public HSSFCell getCell(int cellnum) {
         if(cellnum<0||cellnum>=cells.length) return null;
         return cells[cellnum];
     }

src/java/org/apache/poi/hssf/util/AreaReference.java

@@ -53,9 +53,10 @@ public final class AreaReference {
         		parts[1].length() == 1 && 
         		parts[0].charAt(0) >= 'A' && parts[0].charAt(0) <= 'Z' &&
         		parts[1].charAt(0) >= 'A' && parts[1].charAt(0) <= 'Z') {
-        	// Represented internally as x$1 to x$0
+        	// Represented internally as x$1 to x$65536
+        	//  which is the maximum range of rows
         	parts[0] = parts[0] + "$1";
-        	parts[1] = parts[1] + "$0";
+        	parts[1] = parts[1] + "$65536";
         }
         
         _firstCell = new CellReference(parts[0]);
@@ -98,10 +99,10 @@ public final class AreaReference {
      */
     public static boolean isWholeColumnReference(CellReference topLeft, CellReference botRight) {
     	// These are represented as something like
-    	//   C$1:C$0 or D$1:F$0
+    	//   C$1:C$65535 or D$1:F$0
     	// i.e. absolute from 1st row to 0th one
     	if(topLeft.getRow() == 0 && topLeft.isRowAbsolute() &&
-    		botRight.getRow() == -1 && botRight.isRowAbsolute()) {
+    		botRight.getRow() == 65535 && botRight.isRowAbsolute()) {
     		return true;
     	}
     	return false;

src/java/org/apache/poi/hssf/util/CellReference.java

@@ -71,6 +71,14 @@ public final class CellReference {
         this(null, pRow, pCol, pAbsRow, pAbsCol);
     }
     public CellReference(String pSheetName, int pRow, int pCol, boolean pAbsRow, boolean pAbsCol) {
+        // TODO - "-1" is a special value being temporarily used for whole row and whole column area references.
+        // so these checks are currently N.Q.R.
+        if(pRow < -1) {
+            throw new IllegalArgumentException("row index may not be negative");
+        }
+        if(pCol < -1) {
+            throw new IllegalArgumentException("column index may not be negative");
+        }
         _sheetName = pSheetName;
         _rowIndex=pRow;
         _colIndex=pCol;

src/scratchpad/src/org/apache/poi/hssf/record/formula/eval/Area2DEval.java

@@ -14,10 +14,7 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-/*
+
- * Created on May 8, 2005
- *
- */
 package org.apache.poi.hssf.record.formula.eval;
 
 import org.apache.poi.hssf.record.formula.AreaPtg;
@@ -27,48 +24,60 @@ import org.apache.poi.hssf.record.formula.Ptg;
  * @author Amol S. Deshmukh < amolweb at ya hoo dot com >
  *   
  */
-public class Area2DEval implements AreaEval {
+public final class Area2DEval implements AreaEval {
+// TODO -refactor with Area3DEval
+    private final AreaPtg _delegate;
 
-    private AreaPtg delegate;
+    private final ValueEval[] _values;
-
-    private ValueEval[] values;
 
     public Area2DEval(Ptg ptg, ValueEval[] values) {
-        this.delegate = (AreaPtg) ptg;
+        if(ptg == null) {
-        this.values = values;
+            throw new IllegalArgumentException("ptg must not be null");
+        }
+        if(values == null) {
+            throw new IllegalArgumentException("values must not be null");
+        }
+        for(int i=values.length-1; i>=0; i--) {
+            if(values[i] == null) {
+                throw new IllegalArgumentException("value array elements must not be null");
+            }
+        }
+        // TODO - check size of array vs size of AreaPtg
+        _delegate = (AreaPtg) ptg;
+        _values = values;
     }
 
-    public short getFirstColumn() {
+    public int getFirstColumn() {
-        return delegate.getFirstColumn();
+        return _delegate.getFirstColumn();
     }
 
     public int getFirstRow() {
-        return delegate.getFirstRow();
+        return _delegate.getFirstRow();
     }
 
-    public short getLastColumn() {
+    public int getLastColumn() {
-        return delegate.getLastColumn();
+        return _delegate.getLastColumn();
     }
 
     public int getLastRow() {
-        return delegate.getLastRow();
+        return _delegate.getLastRow();
     }
 
     public ValueEval[] getValues() {
-        return values;
+        return _values;
     }
     
-    public ValueEval getValueAt(int row, short col) {
+    public ValueEval getValueAt(int row, int col) {
         ValueEval retval;
         int index = ((row-getFirstRow())*(getLastColumn()-getFirstColumn()+1))+(col-getFirstColumn());
-        if (index <0 || index >= values.length)
+        if (index <0 || index >= _values.length)
             retval = ErrorEval.VALUE_INVALID;
         else 
-            retval = values[index];
+            retval = _values[index];
         return retval;
     }
     
-    public boolean contains(int row, short col) {
+    public boolean contains(int row, int col) {
         return (getFirstRow() <= row) && (getLastRow() >= row) 
             && (getFirstColumn() <= col) && (getLastColumn() >= col);
     }
@@ -82,10 +91,10 @@ public class Area2DEval implements AreaEval {
     }
     
     public boolean isColumn() {
-        return delegate.getFirstColumn() == delegate.getLastColumn();
+        return _delegate.getFirstColumn() == _delegate.getLastColumn();
     }
 
     public boolean isRow() {
-        return delegate.getFirstRow() == delegate.getLastRow();
+        return _delegate.getFirstRow() == _delegate.getLastRow();
     }
 }

src/scratchpad/src/org/apache/poi/hssf/record/formula/eval/Area3DEval.java

@@ -14,10 +14,7 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-/*
+
- * Created on May 8, 2005
- *
- */
 package org.apache.poi.hssf.record.formula.eval;
 
 import org.apache.poi.hssf.record.formula.Area3DPtg;
@@ -28,47 +25,59 @@ import org.apache.poi.hssf.record.formula.Ptg;
  *  
  */
 public final class Area3DEval implements AreaEval {
+	// TODO -refactor with Area3DEval
+    private final Area3DPtg _delegate;
 
-    private Area3DPtg delegate;
+    private final ValueEval[] _values;
-
-    private ValueEval[] values;
 
     public Area3DEval(Ptg ptg, ValueEval[] values) {
-        this.values = values;
+        if(ptg == null) {
-        this.delegate = (Area3DPtg) ptg;
+            throw new IllegalArgumentException("ptg must not be null");
+        }
+        if(values == null) {
+            throw new IllegalArgumentException("values must not be null");
+        }
+        for(int i=values.length-1; i>=0; i--) {
+            if(values[i] == null) {
+                throw new IllegalArgumentException("value array elements must not be null");
+            }
+        }
+        // TODO - check size of array vs size of AreaPtg
+        _values = values;
+        _delegate = (Area3DPtg) ptg;
     }
 
-    public short getFirstColumn() {
+    public int getFirstColumn() {
-        return delegate.getFirstColumn();
+        return _delegate.getFirstColumn();
     }
 
     public int getFirstRow() {
-        return delegate.getFirstRow();
+        return _delegate.getFirstRow();
     }
 
-    public short getLastColumn() {
+    public int getLastColumn() {
-        return delegate.getLastColumn();
+        return (short) _delegate.getLastColumn();
     }
 
     public int getLastRow() {
-        return delegate.getLastRow();
+        return _delegate.getLastRow();
     }
 
     public ValueEval[] getValues() {
-        return values;
+        return _values;
     }
     
-    public ValueEval getValueAt(int row, short col) {
+    public ValueEval getValueAt(int row, int col) {
         ValueEval retval;
         int index = (row-getFirstRow())*(col-getFirstColumn());
-        if (index <0 || index >= values.length)
+        if (index <0 || index >= _values.length)
             retval = ErrorEval.VALUE_INVALID;
         else 
-            retval = values[index];
+            retval = _values[index];
         return retval;
     }
     
-    public boolean contains(int row, short col) {
+    public boolean contains(int row, int col) {
         return (getFirstRow() <= row) && (getLastRow() >= row) 
             && (getFirstColumn() <= col) && (getLastColumn() >= col);
     }
@@ -83,15 +92,14 @@ public final class Area3DEval implements AreaEval {
     
     
     public boolean isColumn() {
-        return delegate.getFirstColumn() == delegate.getLastColumn();
+        return _delegate.getFirstColumn() == _delegate.getLastColumn();
     }
 
     public boolean isRow() {
-        return delegate.getFirstRow() == delegate.getLastRow();
+        return _delegate.getFirstRow() == _delegate.getLastRow();
     }
 
     public int getExternSheetIndex() {
-        return delegate.getExternSheetIndex();
+        return _delegate.getExternSheetIndex();
     }
-
 }

src/scratchpad/src/org/apache/poi/hssf/record/formula/eval/AreaEval.java

@@ -42,13 +42,13 @@ public interface AreaEval extends ValueEval {
      * returns the 0-based index of the first col in
      * this area.
      */
-    public short getFirstColumn();
+    public int getFirstColumn();
 
     /**
      * returns the 0-based index of the last col in
      * this area.
      */
-    public short getLastColumn();
+    public int getLastColumn();
     
     /**
      * returns true if the Area's start and end row indexes
@@ -80,7 +80,7 @@ public interface AreaEval extends ValueEval {
      * @param row
      * @param col
      */
-    public ValueEval getValueAt(int row, short col);
+    public ValueEval getValueAt(int row, int col);
     
     /**
      * returns true if the cell at row and col specified 
@@ -89,7 +89,7 @@ public interface AreaEval extends ValueEval {
      * @param row
      * @param col
      */
-    public boolean contains(int row, short col);
+    public boolean contains(int row, int col);
     
     /**
      * returns true if the specified col is in range

src/scratchpad/src/org/apache/poi/hssf/record/formula/eval/Ref2DEval.java

@@ -29,16 +29,22 @@ public final class Ref2DEval implements RefEval {
     private final ReferencePtg delegate;
     
     public Ref2DEval(ReferencePtg ptg, ValueEval ve) {
+        if(ve == null) {
+            throw new IllegalArgumentException("ve must not be null");
+        }
+        if(false && ptg == null) { // TODO - fix dodgy code in MultiOperandNumericFunction
+            throw new IllegalArgumentException("ptg must not be null");
+        }
         value = ve;
         delegate = ptg;
     }
     public ValueEval getInnerValueEval() {
         return value;
     }
-    public short getRow() {
+    public int getRow() {
         return delegate.getRow();
     }
-    public short getColumn() {
+    public int getColumn() {
         return delegate.getColumn();
     }
 }

src/scratchpad/src/org/apache/poi/hssf/record/formula/eval/Ref3DEval.java

@@ -29,16 +29,22 @@ public final class Ref3DEval implements RefEval {
     private final Ref3DPtg delegate;
 
     public Ref3DEval(Ref3DPtg ptg, ValueEval ve) {
+        if(ve == null) {
+            throw new IllegalArgumentException("ve must not be null");
+        }
+        if(ptg == null) {
+            throw new IllegalArgumentException("ptg must not be null");
+        }
         value = ve;
         delegate = ptg;
     }
     public ValueEval getInnerValueEval() {
         return value;
     }
-    public short getRow() {
+    public int getRow() {
         return delegate.getRow();
     }
-    public short getColumn() {
+    public int getColumn() {
         return delegate.getColumn();
     }
     public int getExternSheetIndex() {

src/scratchpad/src/org/apache/poi/hssf/record/formula/eval/RefEval.java

@@ -40,12 +40,12 @@ public interface RefEval extends ValueEval {
     public ValueEval getInnerValueEval();
 
     /**
-     * returns the column index.
+     * returns the zero based column index.
      */
-    public short getColumn();
+    public int getColumn();
 
     /**
-     * returns the row index.
+     * returns the zero based row index.
      */
-    public short getRow();
+    public int getRow();
 }

src/scratchpad/src/org/apache/poi/hssf/record/formula/functions/LookupUtils.java

@@ -287,8 +287,8 @@ final class LookupUtils {
 			// It doesn't matter if eval is a 2D or 3D ref, because that detail is never asked of AreaEval.
 			// This code only requires the value array item. 
 			// anything would be ok for rowIx and colIx, but may as well get it right.
-			short rowIx = refEval.getRow();
+			int rowIx = refEval.getRow();
-			short colIx = refEval.getColumn();
+			int colIx = refEval.getColumn();
 			AreaPtg ap = new AreaPtg(rowIx, rowIx, colIx, colIx, false, false, false, false);
 			ValueEval value = refEval.getInnerValueEval();
 			return new Area2DEval(ap, new ValueEval[] { value, });

src/scratchpad/src/org/apache/poi/hssf/usermodel/HSSFFormulaEvaluator.java

@@ -14,10 +14,7 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-/*
+
- * Created on May 5, 2005
- *
- */
 package org.apache.poi.hssf.usermodel;
 
 import java.lang.reflect.Constructor;
@@ -420,20 +417,20 @@ public class HSSFFormulaEvaluator {
             }
             else if (ptg instanceof ReferencePtg) {
                 ReferencePtg refPtg = (ReferencePtg) ptg;
-                short colnum = refPtg.getColumn();
+                int colIx = refPtg.getColumn();
-                short rownum = refPtg.getRow();
+                int rowIx = refPtg.getRow();
-                HSSFRow row = sheet.getRow(rownum);
+                HSSFRow row = sheet.getRow(rowIx);
-                HSSFCell cell = (row != null) ? row.getCell(colnum) : null;
+                HSSFCell cell = (row != null) ? row.getCell(colIx) : null;
                 stack.push(createRef2DEval(refPtg, cell, row, sheet, workbook));
             }
             else if (ptg instanceof Ref3DPtg) {
                 Ref3DPtg refPtg = (Ref3DPtg) ptg;
-                short colnum = refPtg.getColumn();
+                int colIx = refPtg.getColumn();
-                short rownum = refPtg.getRow();
+                int rowIx = refPtg.getRow();
                 Workbook wb = workbook.getWorkbook();
                 HSSFSheet xsheet = workbook.getSheetAt(wb.getSheetIndexFromExternSheetIndex(refPtg.getExternSheetIndex()));
-                HSSFRow row = xsheet.getRow(rownum);
+                HSSFRow row = xsheet.getRow(rowIx);
-                HSSFCell cell = (row != null) ? row.getCell(colnum) : null;
+                HSSFCell cell = (row != null) ? row.getCell(colIx) : null;
                 stack.push(createRef3DEval(refPtg, cell, row, xsheet, workbook));
             }
             else if (ptg instanceof AreaPtg) {
@@ -506,10 +503,10 @@ public class HSSFFormulaEvaluator {
     }
     
     public static AreaEval evaluateAreaPtg(HSSFSheet sheet, HSSFWorkbook workbook, AreaPtg ap) {
-        short row0 = ap.getFirstRow();
+        int row0 = ap.getFirstRow();
-        short col0 = ap.getFirstColumn();
+        int col0 = ap.getFirstColumn();
-        short row1 = ap.getLastRow();
+        int row1 = ap.getLastRow();
-        short col1 = ap.getLastColumn();
+        int col1 = ap.getLastColumn();
         
         // If the last row is -1, then the
         //  reference is for the rest of the column
@@ -518,24 +515,15 @@ public class HSSFFormulaEvaluator {
         if(row1 == -1 && row0 >= 0) {
             row1 = (short)sheet.getLastRowNum();
         }
-        
+        ValueEval[] values = evalArea(workbook, sheet, row0, col0, row1, col1);
-        ValueEval[] values = new ValueEval[(row1 - row0 + 1) * (col1 - col0 + 1)];
+        return new Area2DEval(ap, values);
-        for (short x = row0; sheet != null && x < row1 + 1; x++) {
-            HSSFRow row = sheet.getRow(x);
-            for (short y = col0; row != null && y < col1 + 1; y++) {
-                values[(x - row0) * (col1 - col0 + 1) + (y - col0)] = 
-                    getEvalForCell(row.getCell(y), row, sheet, workbook);
-            }
-        }
-        AreaEval ae = new Area2DEval(ap, values);
-        return ae;
     }
 
     public static AreaEval evaluateArea3dPtg(HSSFWorkbook workbook, Area3DPtg a3dp) {
-        short row0 = a3dp.getFirstRow();
+    	int row0 = a3dp.getFirstRow();
-        short col0 = a3dp.getFirstColumn();
+    	int col0 = a3dp.getFirstColumn();
-        short row1 = a3dp.getLastRow();
+    	int row1 = a3dp.getLastRow();
-        short col1 = a3dp.getLastColumn();
+    	int col1 = a3dp.getLastColumn();
         Workbook wb = workbook.getWorkbook();
         HSSFSheet xsheet = workbook.getSheetAt(wb.getSheetIndexFromExternSheetIndex(a3dp.getExternSheetIndex()));
         
@@ -547,18 +535,27 @@ public class HSSFFormulaEvaluator {
             row1 = (short)xsheet.getLastRowNum();
         }
         
-        ValueEval[] values = new ValueEval[(row1 - row0 + 1) * (col1 - col0 + 1)];
+        ValueEval[] values = evalArea(workbook, xsheet, row0, col0, row1, col1);
-        for (short x = row0; xsheet != null && x < row1 + 1; x++) {
+        return new Area3DEval(a3dp, values);
-            HSSFRow row = xsheet.getRow(x);
-            for (short y = col0; row != null && y < col1 + 1; y++) {
-                values[(x - row0) * (col1 - col0 + 1) + (y - col0)] = 
-                    getEvalForCell(row.getCell(y), row, xsheet, workbook);
-            }
-        }
-        AreaEval ae = new Area3DEval(a3dp, values);
-        return ae;
     }
     
+    private static ValueEval[] evalArea(HSSFWorkbook workbook, HSSFSheet sheet, 
+    		int row0, int col0, int row1, int col1) {
+        ValueEval[] values = new ValueEval[(row1 - row0 + 1) * (col1 - col0 + 1)];
+        for (int x = row0; sheet != null && x < row1 + 1; x++) {
+            HSSFRow row = sheet.getRow(x);
+            for (int y = col0; y < col1 + 1; y++) {
+                ValueEval cellEval;
+                if(row == null) {
+                	cellEval = BlankEval.INSTANCE;
+                } else {
+                	cellEval = getEvalForCell(row.getCell(y), row, sheet, workbook);
+                }
+				values[(x - row0) * (col1 - col0 + 1) + (y - col0)] = cellEval;
+            }
+        }
+        return values;
+    }
 
     /**
      * returns the OperationEval concrete impl instance corresponding

src/scratchpad/testcases/org/apache/poi/hssf/model/TestFormulaParserSP.java

@@ -1,4 +1,3 @@
-
 /* ====================================================================
    Licensed to the Apache Software Foundation (ASF) under one or more
    contributor license agreements.  See the NOTICE file distributed with
@@ -20,24 +19,24 @@ package org.apache.poi.hssf.model;
 
 import junit.framework.TestCase;
 
+import org.apache.poi.hssf.model.FormulaParser.FormulaParseException;
 import org.apache.poi.hssf.record.formula.FuncVarPtg;
 import org.apache.poi.hssf.record.formula.NamePtg;
 import org.apache.poi.hssf.record.formula.Ptg;
+import org.apache.poi.hssf.usermodel.HSSFCell;
 import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
 import org.apache.poi.hssf.usermodel.HSSFName;
+import org.apache.poi.hssf.usermodel.HSSFRow;
 import org.apache.poi.hssf.usermodel.HSSFSheet;
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator.CellValue;
 
 /**
  * Test the low level formula parser functionality,
  *  but using parts which need to use the
  *  HSSFFormulaEvaluator, which is in scratchpad 
  */
-public class TestFormulaParserSP extends TestCase {
+public final class TestFormulaParserSP extends TestCase {
-
-    public TestFormulaParserSP(String name) {
-        super(name);
-    }
 
 	public void testWithNamedRange() throws Exception {
 		HSSFWorkbook workbook = new HSSFWorkbook();
@@ -80,4 +79,32 @@ public class TestFormulaParserSP extends TestCase {
 		assertEquals(FuncVarPtg.class, ptgs[1].getClass());
 	}
 
+	public void testEvaluateFormulaWithRowBeyond32768_Bug44539() {
+		
+		HSSFWorkbook wb = new HSSFWorkbook();
+		HSSFSheet sheet = wb.createSheet();
+		wb.setSheetName(0, "Sheet1");
+		
+		HSSFRow row = sheet.createRow(0);
+		HSSFCell cell = row.createCell((short)0);
+		cell.setCellFormula("SUM(A32769:A32770)");
+
+		// put some values in the cells to make the evaluation more interesting
+		sheet.createRow(32768).createCell((short)0).setCellValue(31);
+		sheet.createRow(32769).createCell((short)0).setCellValue(11);
+		
+		HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(sheet, wb);
+		fe.setCurrentRow(row);
+		CellValue result;
+		try {
+			result = fe.evaluate(cell);
+		} catch (FormulaParseException e) {
+			if(e.getMessage().equals("Found reference to named range \"A\", but that named range wasn't defined!")) {
+				fail("Identifed bug 44539");
+			}
+			throw new RuntimeException(e);
+		}
+		assertEquals(HSSFCell.CELL_TYPE_NUMERIC, result.getCellType());
+		assertEquals(42.0, result.getNumberValue(), 0.0);
+	}
 }

src/scratchpad/testcases/org/apache/poi/hssf/usermodel/TestBug44410.java

@@ -63,12 +63,13 @@ public class TestBug44410 extends TestCase {
         assertEquals(AreaPtg.class, ops.get(0).getClass());
         assertEquals(FuncVarPtg.class, ops.get(1).getClass());
 
-        // Actually stored as C1 to C0 (last row is -1)
+        // Actually stored as C1 to C65536 
+        //  (last row is -1 === 65535)
         AreaPtg ptg = (AreaPtg)ops.get(0);
         assertEquals(2, ptg.getFirstColumn());
         assertEquals(2, ptg.getLastColumn());
         assertEquals(0, ptg.getFirstRow());
-        assertEquals(-1, ptg.getLastRow());
+        assertEquals(65535, ptg.getLastRow());
         assertEquals("C:C", ptg.toFormulaString(wb.getWorkbook()));
         
         // Will show as C:C, but won't know how many

src/testcases/org/apache/poi/hssf/model/TestFormulaParser.java

@@ -1,4 +1,3 @@
-
 /* ====================================================================
    Licensed to the Apache Software Foundation (ASF) under one or more
    contributor license agreements.  See the NOTICE file distributed with
@@ -21,6 +20,7 @@ package org.apache.poi.hssf.model;
 import junit.framework.AssertionFailedError;
 import junit.framework.TestCase;
 
+import org.apache.poi.hssf.model.FormulaParser.FormulaParseException;
 import org.apache.poi.hssf.record.formula.AbstractFunctionPtg;
 import org.apache.poi.hssf.record.formula.AddPtg;
 import org.apache.poi.hssf.record.formula.AreaPtg;
@@ -59,18 +59,8 @@ import org.apache.poi.hssf.usermodel.HSSFWorkbook;
  * Some tests are also done in scratchpad, if they need
  *  HSSFFormulaEvaluator, which is there
  */
-public class TestFormulaParser extends TestCase {
+public final class TestFormulaParser extends TestCase {
 
-    public TestFormulaParser(String name) {
-        super(name);
-    }
-    public void setUp(){
-        
-    }
-    
-    public void tearDown() {
-        
-    }
     /**
      * @return parsed token array already confirmed not <code>null</code>
      */
@@ -831,10 +821,27 @@ public class TestFormulaParser extends TestCase {
         try {
             parseFormula(formula);
             throw new AssertionFailedError("expected parse exception");
-        } catch (RuntimeException e) {
+        } catch (FormulaParseException e) {
-            // TODO - catch more specific exception
             // expected during successful test
-            return;
+            assertNotNull(e.getMessage());
+        } catch (RuntimeException e) {
+            e.printStackTrace();
+            fail("Wrong exception:" + e.getMessage());
         }
     }
+
+    public void testSetFormulaWithRowBeyond32768_Bug44539() {
+        
+        HSSFWorkbook wb = new HSSFWorkbook();
+        HSSFSheet sheet = wb.createSheet();
+        wb.setSheetName(0, "Sheet1");
+        
+        HSSFRow row = sheet.createRow(0);
+        HSSFCell cell = row.createCell((short)0);
+        cell.setCellFormula("SUM(A32769:A32770)");
+        if("SUM(A-32767:A-32766)".equals(cell.getCellFormula())) {
+            fail("Identified bug 44539");
+        }
+        assertEquals("SUM(A32769:A32770)", cell.getCellFormula());
+    }
 }

src/testcases/org/apache/poi/hssf/record/formula/TestAreaPtg.java

@@ -27,15 +27,12 @@ import org.apache.poi.hssf.model.FormulaParser;
  *
  * @author Dmitriy Kumshayev
  */
-public class TestAreaPtg extends TestCase
+public final class TestAreaPtg extends TestCase {
-{
 
 	AreaPtg relative;
 	AreaPtg absolute;
 	
-	protected void setUp() throws Exception
+	protected void setUp() {
-	{
-		super.setUp();
 		short firstRow=5;
 		short lastRow=13;
 		short firstCol=7;
@@ -64,10 +61,9 @@ public class TestAreaPtg extends TestCase
 	}
 
 
-	public void resetColumns(AreaPtg aptg)
+	private static void resetColumns(AreaPtg aptg) {
-	{
+		int fc = aptg.getFirstColumn();
-		short fc = aptg.getFirstColumn();
+		int lc = aptg.getLastColumn();
-		short lc = aptg.getLastColumn();
 		aptg.setFirstColumn(fc);
 		aptg.setLastColumn(lc);
 		assertEquals(fc , aptg.getFirstColumn() );