File Source for Cell.php

<?php
/**
* PHPExcel
*
* Copyright (c) 2006 - 2010 PHPExcel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* @category PHPExcel
* @package PHPExcel_Cell
* @copyright Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 1.7.4, 2010-08-26
*/
/**
* PHPExcel_Cell
*
* @category PHPExcel
* @package PHPExcel_Cell
* @copyright Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
*/
class PHPExcel_Cell
{
/**
* Value binder to use
*
* @var PHPExcel_Cell_IValueBinder
*/
private static $_valueBinder = null;
/**
* Column of the cell
*
* @var string
*/
private $_column;
/**
* Row of the cell
*
* @var int
*/
private $_row;
/**
* Value of the cell
*
* @var mixed
*/
private $_value;
/**
* Calculated value of the cell (used for caching)
*
* @var mixed
*/
private $_calculatedValue = null;
/**
* Type of the cell data
*
* @var string
*/
private $_dataType;
/**
* Parent worksheet
*
* @var PHPExcel_Worksheet
*/
private $_parent;
/**
* Index to cellXf
*
* @var int
*/
private $_xfIndex;
/**
* Attributes of the formula
*
*
*/
private $_formulaAttributes;
/**
* Send notification to the cache controller
* @return void
***/
public function notifyCacheController() {
$this->_parent->getCellCacheController()->updateCacheData($this);
return $this;
}
public function detach() {
$this->_parent = null;
}
public function attach($parent) {
$this->_parent = $parent;
}
/**
* Create a new Cell
*
* @param string $pColumn
* @param int $pRow
* @param mixed $pValue
* @param string $pDataType
* @param PHPExcel_Worksheet $pSheet
* @throws Exception
*/
public function __construct($pColumn = 'A', $pRow = 1, $pValue = null, $pDataType = null, PHPExcel_Worksheet $pSheet = null)
{
// Initialise cell coordinate
$this->_column = strtoupper($pColumn);
$this->_row = $pRow;
// Initialise cell value
$this->_value = $pValue;
// Set worksheet
$this->_parent = $pSheet;
// Set datatype?
if (!is_null($pDataType)) {
$this->_dataType = $pDataType;
} else {
if (!self::getValueBinder()->bindValue($this, $pValue)) {
throw new Exception("Value could not be bound to cell.");
}
}
// set default index to cellXf
$this->_xfIndex = 0;
}
/**
* Get cell coordinate column
*
* @return string
*/
public function getColumn()
{
return $this->_column;
}
/**
* Get cell coordinate row
*
* @return int
*/
public function getRow()
{
return $this->_row;
}
/**
* Get cell coordinate
*
* @return string
*/
public function getCoordinate()
{
return $this->_column . $this->_row;
}
/**
* Get cell value
*
* @return mixed
*/
public function getValue()
{
return $this->_value;
}
/**
* Set cell value
*
* This clears the cell formula.
*
* @param mixed $pValue Value
* @return PHPExcel_Cell
*/
public function setValue($pValue = null)
{
if (!self::getValueBinder()->bindValue($this, $pValue)) {
throw new Exception("Value could not be bound to cell.");
}
return $this;
}
/**
* Set cell value (with explicit data type given)
*
* @param mixed $pValue Value
* @param string $pDataType Explicit data type
* @return PHPExcel_Cell
* @throws Exception
*/
public function setValueExplicit($pValue = null, $pDataType = PHPExcel_Cell_DataType::TYPE_STRING)
{
// set the value according to data type
switch ($pDataType) {
case PHPExcel_Cell_DataType::TYPE_STRING:
case PHPExcel_Cell_DataType::TYPE_NULL:
case PHPExcel_Cell_DataType::TYPE_INLINE:
$this->_value = PHPExcel_Cell_DataType::checkString($pValue);
break;
case PHPExcel_Cell_DataType::TYPE_NUMERIC:
$this->_value = (float)$pValue;
break;
case PHPExcel_Cell_DataType::TYPE_FORMULA:
$this->_value = (string)$pValue;
break;
case PHPExcel_Cell_DataType::TYPE_BOOL:
$this->_value = (bool)$pValue;
break;
case PHPExcel_Cell_DataType::TYPE_ERROR:
$this->_value = PHPExcel_Cell_DataType::checkErrorCode($pValue);
break;
default:
throw new Exception('Invalid datatype: ' . $pDataType);
break;
}
// set the datatype
$this->_dataType = $pDataType;
return $this->notifyCacheController();
}
/**
* Get calculated cell value
*
* @return mixed
*/
public function getCalculatedValue($resetLog=true)
{
// echo 'Cell '.$this->getCoordinate().' value is a '.$this->_dataType.' with a value of '.$this->getValue().' ';
if ($this->_dataType == PHPExcel_Cell_DataType::TYPE_FORMULA) {
try {
// echo 'Cell value for '.$this->getCoordinate().' is a formula: Calculating value ';
$result = PHPExcel_Calculation::getInstance()->calculateCellValue($this,$resetLog);
// echo $this->getCoordinate().' calculation result is '.$result.' ';
} catch ( Exception $ex ) {
// echo 'Calculation Exception: '.$ex->getMessage().' ';
$result = '#N/A';
throw(new Exception($this->getParent()->getTitle().'!'.$this->getCoordinate().' -> '.$ex->getMessage()));
}
if ($result === '#Not Yet Implemented') {
// echo 'Returning fallback value of '.$this->_calculatedValue.' for cell '.$this->getCoordinate().' ';
return $this->_calculatedValue; // Fallback if calculation engine does not support the formula.
}
// echo 'Returning calculated value of '.$result.' for cell '.$this->getCoordinate().' ';
return $result;
}
if (is_null($this->_value)) {
// echo 'Cell '.$this->getCoordinate().' has no value, formula or otherwise ';
return null;
}
// echo 'Cell value for '.$this->getCoordinate().' is not a formula: Returning data value of '.$this->_value.' ';
return $this->_value;
}
/**
* Set calculated value (used for caching)
*
* @param mixed $pValue Value
* @return PHPExcel_Cell
*/
public function setCalculatedValue($pValue = null)
{
if (!is_null($pValue)) {
$this->_calculatedValue = $pValue;
}
return $this->notifyCacheController();
}
/**
* Get old calculated value (cached)
*
* @return mixed
*/
public function getOldCalculatedValue()
{
return $this->_calculatedValue;
}
/**
* Get cell data type
*
* @return string
*/
public function getDataType()
{
return $this->_dataType;
}
/**
* Set cell data type
*
* @param string $pDataType
* @return PHPExcel_Cell
*/
public function setDataType($pDataType = PHPExcel_Cell_DataType::TYPE_STRING)
{
$this->_dataType = $pDataType;
return $this->notifyCacheController();
}
/**
* Has Data validation?
*
* @return boolean
*/
public function hasDataValidation()
{
if (!isset($this->_parent)) {
throw new Exception('Cannot check for data validation when cell is not bound to a worksheet');
}
return $this->_parent->dataValidationExists($this->getCoordinate());
}
/**
* Get Data validation
*
* @return PHPExcel_Cell_DataValidation
*/
public function getDataValidation()
{
if (!isset($this->_parent)) {
throw new Exception('Cannot get data validation for cell that is not bound to a worksheet');
}
return $this->_parent->getDataValidation($this->getCoordinate());
}
/**
* Set Data validation
*
* @param PHPExcel_Cell_DataValidation $pDataValidation
* @throws Exception
* @return PHPExcel_Cell
*/
public function setDataValidation(PHPExcel_Cell_DataValidation $pDataValidation = null)
{
if (!isset($this->_parent)) {
throw new Exception('Cannot set data validation for cell that is not bound to a worksheet');
}
$this->_parent->setDataValidation($this->getCoordinate(), $pDataValidation);
return $this->notifyCacheController();
}
/**
* Has Hyperlink
*
* @return boolean
*/
public function hasHyperlink()
{
if (!isset($this->_parent)) {
throw new Exception('Cannot check for hyperlink when cell is not bound to a worksheet');
}
return $this->_parent->hyperlinkExists($this->getCoordinate());
}
/**
* Get Hyperlink
*
* @throws Exception
* @return PHPExcel_Cell_Hyperlink
*/
public function getHyperlink()
{
if (!isset($this->_parent)) {
throw new Exception('Cannot get hyperlink for cell that is not bound to a worksheet');
}
return $this->_parent->getHyperlink($this->getCoordinate());
}
/**
* Set Hyperlink
*
* @param PHPExcel_Cell_Hyperlink $pHyperlink
* @throws Exception
* @return PHPExcel_Cell
*/
public function setHyperlink(PHPExcel_Cell_Hyperlink $pHyperlink = null)
{
if (!isset($this->_parent)) {
throw new Exception('Cannot set hyperlink for cell that is not bound to a worksheet');
}
$this->_parent->setHyperlink($this->getCoordinate(), $pHyperlink);
return $this->notifyCacheController();
}
/**
* Get parent
*
* @return PHPExcel_Worksheet
*/
public function getParent() {
return $this->_parent;
}
/**
* Re-bind parent
*
* @param PHPExcel_Worksheet $parent
* @return PHPExcel_Cell
*/
public function rebindParent(PHPExcel_Worksheet $parent) {
$this->_parent = $parent;
return $this->notifyCacheController();
}
/**
* Is cell in a specific range?
*
* @param string $pRange Cell range (e.g. A1:A1)
* @return boolean
*/
public function isInRange($pRange = 'A1:A1')
{
list($rangeStart,$rangeEnd) = PHPExcel_Cell::rangeBoundaries($pRange);
// Translate properties
$myColumn = PHPExcel_Cell::columnIndexFromString($this->getColumn()) - 1;
$myRow = $this->getRow();
// Verify if cell is in range
return (($rangeStart[0] <= $myColumn) && ($rangeEnd[0] >= $myColumn) &&
($rangeStart[1] <= $myRow) && ($rangeEnd[1] >= $myRow)
);
}
/**
* Coordinate from string
*
* @param string $pCoordinateString
* @return array Array containing column and row (indexes 0 and 1)
* @throws Exception
*/
public static function coordinateFromString($pCoordinateString = 'A1')
{
if (strpos($pCoordinateString,':') !== false) {
throw new Exception('Cell coordinate string can not be a range of cells.');
} else if ($pCoordinateString == '') {
throw new Exception('Cell coordinate can not be zero-length string.');
} else if (preg_match("/([$]?[A-Z]+)([$]?\d+)/", $pCoordinateString, $matches)) {
list(, $column, $row) = $matches;
return array($column, $row);
} else {
throw new Exception('Invalid cell coordinate.');
}
}
/**
* Make string coordinate absolute
*
* @param string $pCoordinateString
* @return string Absolute coordinate
* @throws Exception
*/
public static function absoluteCoordinate($pCoordinateString = 'A1')
{
if (strpos($pCoordinateString,':') === false && strpos($pCoordinateString,',') === false) {
// Create absolute coordinate
list($column, $row) = PHPExcel_Cell::coordinateFromString($pCoordinateString);
return '$' . $column . '$' . $row;
} else {
throw new Exception("Coordinate string should not be a cell range.");
}
}
/**
* Split range into coordinate strings
*
* @param string $pRange
* @return array Array containg one or more arrays containing one or two coordinate strings
*/
public static function splitRange($pRange = 'A1:A1')
{
$exploded = explode(',', $pRange);
for ($i = 0; $i < count($exploded); ++$i) {
$exploded[$i] = explode(':', $exploded[$i]);
}
return $exploded;
}
/**
* Build range from coordinate strings
*
* @param array $pRange Array containg one or more arrays containing one or two coordinate strings
* @return string String representation of $pRange
* @throws Exception
*/
public static function buildRange($pRange)
{
// Verify range
if (!is_array($pRange) || count($pRange) == 0 || !is_array($pRange[0])) {
throw new Exception('Range does not contain any information.');
}
// Build range
$imploded = array();
for ($i = 0; $i < count($pRange); ++$i) {
$pRange[$i] = implode(':', $pRange[$i]);
}
$imploded = implode(',', $pRange);
return $imploded;
}
/**
* Calculate range boundaries
*
* @param string $pRange Cell range (e.g. A1:A1)
* @return array Range coordinates (Start Cell, End Cell) where Start Cell and End Cell are arrays (Column Number, Row Number)
*/
public static function rangeBoundaries($pRange = 'A1:A1')
{
// Uppercase coordinate
$pRange = strtoupper($pRange);
// Extract range
if (strpos($pRange, ':') === false) {
$rangeA = $rangeB = $pRange;
} else {
list($rangeA, $rangeB) = explode(':', $pRange);
}
// Calculate range outer borders
$rangeStart = PHPExcel_Cell::coordinateFromString($rangeA);
$rangeEnd = PHPExcel_Cell::coordinateFromString($rangeB);
// Translate column into index
$rangeStart[0] = PHPExcel_Cell::columnIndexFromString($rangeStart[0]);
$rangeEnd[0] = PHPExcel_Cell::columnIndexFromString($rangeEnd[0]);
return array($rangeStart, $rangeEnd);
}
/**
* Calculate range dimension
*
* @param string $pRange Cell range (e.g. A1:A1)
* @return array Range dimension (width, height)
*/
public static function rangeDimension($pRange = 'A1:A1')
{
// Calculate range outer borders
list($rangeStart,$rangeEnd) = PHPExcel_Cell::rangeBoundaries($pRange);
return array( ($rangeEnd[0] - $rangeStart[0] + 1), ($rangeEnd[1] - $rangeStart[1] + 1) );
}
/**
* Calculate range boundaries
*
* @param string $pRange Cell range (e.g. A1:A1)
* @return array Range boundaries (staring Column, starting Row, Final Column, Final Row)
*/
public static function getRangeBoundaries($pRange = 'A1:A1')
{
// Uppercase coordinate
$pRange = strtoupper($pRange);
// Extract range
if (strpos($pRange, ':') === false) {
$rangeA = $pRange;
$rangeB = $pRange;
} else {
list($rangeA, $rangeB) = explode(':', $pRange);
}
return array( self::coordinateFromString($rangeA), self::coordinateFromString($rangeB));
}
/**
* Column index from string
*
* @param string $pString
* @return int Column index (base 1 !!!)
* @throws Exception
*/
public static function columnIndexFromString($pString = 'A')
{
static $lookup = array(
'A' => 1, 'B' => 2, 'C' => 3, 'D' => 4, 'E' => 5, 'F' => 6, 'G' => 7, 'H' => 8, 'I' => 9, 'J' => 10, 'K' => 11, 'L' => 12, 'M' => 13,
'N' => 14, 'O' => 15, 'P' => 16, 'Q' => 17, 'R' => 18, 'S' => 19, 'T' => 20, 'U' => 21, 'V' => 22, 'W' => 23, 'X' => 24, 'Y' => 25, 'Z' => 26
);
if (isset($lookup[$pString]))
return $lookup[$pString];
// Convert to uppercase
$pString = strtoupper($pString);
$strLen = strlen($pString);
// Convert column to integer
if ($strLen == 1) {
return (ord($pString{0}) - 64);
} elseif ($strLen == 2) {
return $result = ((1 + (ord($pString{0}) - 65)) * 26) + (ord($pString{1}) - 64);
} elseif ($strLen == 3) {
return ((1 + (ord($pString{0}) - 65)) * 676) + ((1 + (ord($pString{1}) - 65)) * 26) + (ord($pString{2}) - 64);
} else {
throw new Exception("Column string index can not be " . ($strLen != 0 ? "longer than 3 characters" : "empty") . ".");
}
}
/**
* String from columnindex
*
* @param int $pColumnIndex Column index (base 0 !!!)
* @return string
*/
public static function stringFromColumnIndex($pColumnIndex = 0)
{
// Determine column string
if ($pColumnIndex < 26) {
return chr(65 + $pColumnIndex);
}
return PHPExcel_Cell::stringFromColumnIndex((int)($pColumnIndex / 26) -1).chr(65 + $pColumnIndex%26) ;
}
/**
* Extract all cell references in range
*
* @param string $pRange Range (e.g. A1 or A1:A10 or A1:A10 A100:A1000)
* @return array Array containing single cell references
*/
public static function extractAllCellReferencesInRange($pRange = 'A1') {
// Returnvalue
$returnValue = array();
// Explode spaces
$aExplodeSpaces = explode(' ', str_replace('$', '', strtoupper($pRange)));
foreach ($aExplodeSpaces as $explodedSpaces) {
// Single cell?
if (strpos($explodedSpaces,':') === false && strpos($explodedSpaces,',') === false) {
$col = 'A';
$row = 1;
list($col, $row) = PHPExcel_Cell::coordinateFromString($explodedSpaces);
if (strlen($col) <= 2) {
$returnValue[] = $explodedSpaces;
}
continue;
}
// Range...
$range = PHPExcel_Cell::splitRange($explodedSpaces);
for ($i = 0; $i < count($range); ++$i) {
// Single cell?
if (count($range[$i]) == 1) {
$col = 'A';
$row = 1;
list($col, $row) = PHPExcel_Cell::coordinateFromString($range[$i]);
if (strlen($col) <= 2) {
$returnValue[] = $explodedSpaces;
}
}
// Range...
$rangeStart = $rangeEnd = '';
$startingCol = $startingRow = $endingCol = $endingRow = 0;
list($rangeStart, $rangeEnd) = $range[$i];
list($startingCol, $startingRow) = PHPExcel_Cell::coordinateFromString($rangeStart);
list($endingCol, $endingRow) = PHPExcel_Cell::coordinateFromString($rangeEnd);
// Conversions...
$startingCol = PHPExcel_Cell::columnIndexFromString($startingCol);
$endingCol = PHPExcel_Cell::columnIndexFromString($endingCol);
// Current data
$currentCol = --$startingCol;
$currentRow = $startingRow;
// Loop cells
while ($currentCol < $endingCol) {
$loopColumn = PHPExcel_Cell::stringFromColumnIndex($currentCol);
while ($currentRow <= $endingRow) {
$returnValue[] = $loopColumn.$currentRow;
++$currentRow;
}
++$currentCol;
$currentRow = $startingRow;
}
}
}
// Return value
return $returnValue;
}
/**
* Compare 2 cells
*
* @param PHPExcel_Cell $a Cell a
* @param PHPExcel_Cell $a Cell b
* @return int Result of comparison (always -1 or 1, never zero!)
*/
public static function compareCells(PHPExcel_Cell $a, PHPExcel_Cell $b)
{
if ($a->_row < $b->_row) {
return -1;
} elseif ($a->_row > $b->_row) {
return 1;
} elseif (PHPExcel_Cell::columnIndexFromString($a->_column) < PHPExcel_Cell::columnIndexFromString($b->_column)) {
return -1;
} else {
return 1;
}
}
/**
* Get value binder to use
*
* @return PHPExcel_Cell_IValueBinder
*/
public static function getValueBinder() {
if (is_null(self::$_valueBinder)) {
self::$_valueBinder = new PHPExcel_Cell_DefaultValueBinder();
}
return self::$_valueBinder;
}
/**
* Set value binder to use
*
* @param PHPExcel_Cell_IValueBinder $binder
* @throws Exception
*/
public static function setValueBinder(PHPExcel_Cell_IValueBinder $binder = null) {
if (is_null($binder)) {
throw new Exception("A PHPExcel_Cell_IValueBinder is required for PHPExcel to function correctly.");
}
self::$_valueBinder = $binder;
}
/**
* Implement PHP __clone to create a deep clone, not just a shallow copy.
*/
public function __clone() {
$vars = get_object_vars($this);
foreach ($vars as $key => $value) {
if ((is_object($value)) && ($key != '_parent')) {
$this->$key = clone $value;
} else {
$this->$key = $value;
}
}
}
/**
* Get index to cellXf
*
* @return int
*/
public function getXfIndex()
{
return $this->_xfIndex;
}
/**
* Set index to cellXf
*
* @param int $pValue
* @return PHPExcel_Cell
*/
public function setXfIndex($pValue = 0)
{
$this->_xfIndex = $pValue;
return $this->notifyCacheController();
}
public function setFormulaAttributes($pAttributes)
{
$this->_formulaAttributes = $pAttributes;
return $this;
}
public function getFormulaAttributes()
{
return $this->_formulaAttributes;
}
}

Source for file Cell.php