_rowIndex = Integer.parseInt(rowRef)-1; // -1 to convert 1-based to zero-based
}
+ public CellReference(int pRow, int pCol) {
+ this(pRow, pCol, false, false);
+ }
+ public CellReference(int pRow, short pCol) {
+ this(pRow, (int)pCol, false, false);
+ }
+
public CellReference(int pRow, int pCol, boolean pAbsRow, boolean pAbsCol) {
this(null, pRow, pCol, pAbsRow, pAbsCol);
}
* ALPHA-26 number format to 0-based base 10.
*/
private int convertColStringToNum(String ref) {
- int lastIx = ref.length()-1;
- int retval=0;
- int pos = 0;
-
- for (int k = lastIx; k > -1; k--) {
- char thechar = ref.charAt(k);
- if ( pos == 0) {
- retval += (Character.getNumericValue(thechar)-9);
- } else {
- retval += (Character.getNumericValue(thechar)-9) * (pos * 26);
- }
- pos++;
- }
- return retval-1;
+ int lastIx = ref.length()-1;
+ int retval=0;
+ int pos = 0;
+
+ for (int k = lastIx; k > -1; k--) {
+ char thechar = ref.charAt(k);
+ // Character.getNumericValue() returns the values
+ // 10-35 for the letter A-Z
+ int shift = (int)Math.pow(26, pos);
+ retval += (Character.getNumericValue(thechar)-9) * shift;
+ pos++;
+ }
+ return retval-1;
}
/**
* eg column #3 -> D
*/
protected static String convertNumToColString(int col) {
- String retval = null;
- int mod = col % 26;
- int div = col / 26;
- char small=(char)(mod + 65);
- char big = (char)(div + 64);
-
- if (div == 0) {
- retval = ""+small;
- } else {
- retval = ""+big+""+small;
- }
-
- return retval;
+ // Excel counts column A as the 1st column, we
+ // treat it as the 0th one
+ int excelColNum = col + 1;
+
+ String colRef = "";
+ int colRemain = excelColNum;
+
+ while(colRemain > 0) {
+ int thisPart = colRemain % 26;
+ if(thisPart == 0) { thisPart = 26; }
+ colRemain = (colRemain - thisPart) / 26;
+
+ // The letter A is at 65
+ char colChar = (char)(thisPart+64);
+ colRef = colChar + colRef;
+ }
+
+ return colRef;
}
/**
return sb.toString();
}
+ /**
+ * Returns the three parts of the cell reference, the
+ * Sheet name (or null if none supplied), the 1 based
+ * row number, and the A based column letter.
+ * This will not include any markers for absolute
+ * references, so use {@link #formatAsString()}
+ * to properly turn references into strings.
+ */
+ public String[] getCellRefParts() {
+ return new String[] {
+ _sheetName,
+ Integer.toString(_rowIndex+1),
+ convertNumToColString(_colIndex)
+ };
+ }
+
/**
* Appends cell reference with '$' markers for absolute values as required.
* Sheet name is not included.
int actualResult = CellReference.classifyCellReference(ref);
assertEquals(expectedResult, actualResult);
}
-}
+
+
+ public void testGetCellRefParts() {
+ CellReference cellReference;
+ String[] parts;
+
+ String cellRef = "A1";
+ cellReference = new CellReference(cellRef);
+ assertEquals(0, cellReference.getCol());
+ parts = cellReference.getCellRefParts();
+ assertNotNull(parts);
+ assertEquals(null, parts[0]);
+ assertEquals("1", parts[1]);
+ assertEquals("A", parts[2]);
+
+ cellRef = "AA1";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26, cellReference.getCol());
+ parts = cellReference.getCellRefParts();
+ assertNotNull(parts);
+ assertEquals(null, parts[0]);
+ assertEquals("1", parts[1]);
+ assertEquals("AA", parts[2]);
+
+ cellRef = "AA100";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26, cellReference.getCol());
+ parts = cellReference.getCellRefParts();
+ assertNotNull(parts);
+ assertEquals(null, parts[0]);
+ assertEquals("100", parts[1]);
+ assertEquals("AA", parts[2]);
+
+ cellRef = "AAA300";
+ cellReference = new CellReference(cellRef);
+ assertEquals(702, cellReference.getCol());
+ parts = cellReference.getCellRefParts();
+ assertNotNull(parts);
+ assertEquals(null, parts[0]);
+ assertEquals("300", parts[1]);
+ assertEquals("AAA", parts[2]);
+
+ cellRef = "ZZ100521";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26*26+25, cellReference.getCol());
+ parts = cellReference.getCellRefParts();
+ assertNotNull(parts);
+ assertEquals(null, parts[0]);
+ assertEquals("100521", parts[1]);
+ assertEquals("ZZ", parts[2]);
+
+ cellRef = "ZYX987";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26*26*26 + 25*26 + 24 - 1, cellReference.getCol());
+ parts = cellReference.getCellRefParts();
+ assertNotNull(parts);
+ assertEquals(null, parts[0]);
+ assertEquals("987", parts[1]);
+ assertEquals("ZYX", parts[2]);
+
+ cellRef = "AABC10065";
+ cellReference = new CellReference(cellRef);
+ parts = cellReference.getCellRefParts();
+ assertNotNull(parts);
+ assertEquals(null, parts[0]);
+ assertEquals("10065", parts[1]);
+ assertEquals("AABC", parts[2]);
+ }
+
+ public void testGetColNumFromRef() {
+ String cellRef = "A1";
+ CellReference cellReference = new CellReference(cellRef);
+ assertEquals(0, cellReference.getCol());
+
+ cellRef = "AA1";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26, cellReference.getCol());
+
+ cellRef = "AB1";
+ cellReference = new CellReference(cellRef);
+ assertEquals(27, cellReference.getCol());
+
+ cellRef = "BA1";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26+26, cellReference.getCol());
+
+ cellRef = "CA1";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26+26+26, cellReference.getCol());
+
+ cellRef = "ZA1";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26*26, cellReference.getCol());
+
+ cellRef = "ZZ1";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26*26+25, cellReference.getCol());
+
+ cellRef = "AAA1";
+ cellReference = new CellReference(cellRef);
+ assertEquals(26*26+26, cellReference.getCol());
+
+
+ cellRef = "A1100";
+ cellReference = new CellReference(cellRef);
+ assertEquals(0, cellReference.getCol());
+
+ cellRef = "BC15";
+ cellReference = new CellReference(cellRef);
+ assertEquals(54, cellReference.getCol());
+ }
+
+ public void testGetRowNumFromRef() {
+ String cellRef = "A1";
+ CellReference cellReference = new CellReference(cellRef);
+ assertEquals(0, cellReference.getRow());
+
+ cellRef = "A12";
+ cellReference = new CellReference(cellRef);
+ assertEquals(11, cellReference.getRow());
+
+ cellRef = "AS121";
+ cellReference = new CellReference(cellRef);
+ assertEquals(120, cellReference.getRow());
+ }
+
+ public void testConvertNumToColString() {
+ short col = 702;
+ String collRef = new CellReference(0, col).formatAsString();
+ assertEquals("AAA1", collRef);
+
+ short col2 = 0;
+ String collRef2 = new CellReference(0, col2).formatAsString();
+ assertEquals("A1", collRef2);
+
+ short col3 = 27;
+ String collRef3 = new CellReference(0, col3).formatAsString();
+ assertEquals("AB1", collRef3);
+
+ short col4 = 2080;
+ String collRef4 = new CellReference(0, col4).formatAsString();
+ assertEquals("CBA1", collRef4);
+ }
+}
\ No newline at end of file
projects / poi.git / commitdiff