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<?php |
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namespace Xls; |
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class Cell |
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{ |
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protected $row; |
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protected $col; |
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protected $rowRel; |
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protected $colRel; |
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/** |
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* @param int $row |
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* @param int $col |
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* @param bool $rowRel |
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* @param bool $colRel |
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* |
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* @throws \Exception |
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*/ |
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public function __construct($row, $col, $rowRel = true, $colRel = true) |
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{ |
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$this->validateRowIndex($row); |
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$this->validateColIndex($col); |
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$this->row = $row; |
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$this->col = $col; |
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$this->rowRel = $rowRel; |
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$this->colRel = $colRel; |
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} |
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/** |
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* @param $address |
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* |
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* @return Cell |
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*/ |
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public static function createFromAddress($address) |
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{ |
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list($row, $col, $rowRel, $colRel) = self::addressToRowCol($address); |
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return new self($row, $col, $rowRel, $colRel); |
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} |
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/** |
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* @return int |
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*/ |
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public function getRow() |
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{ |
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return $this->row; |
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} |
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/** |
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* @return int |
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*/ |
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public function getCol() |
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{ |
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return $this->col; |
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} |
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/** |
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* Utility function for writing formulas |
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* Converts a cell's coordinates to the A1 format. |
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* |
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* @throws \Exception |
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* @return string The cell identifier in A1 format |
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*/ |
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public function getAddress() |
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{ |
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$int = (int)($this->col / 26); |
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$frac = $this->col % 26; |
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$chr1 = ''; |
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if ($int > 0) { |
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$chr1 = chr(ord('A') + $int - 1); |
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} |
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$chr2 = chr(ord('A') + $frac); |
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return $chr1 . $chr2 . ($this->row + 1); |
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} |
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/** |
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* Convert an Excel cell reference such as A1 or $B2 or C$3 or $D$4 to a zero |
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* indexed row and column number. Also returns two (0,1) values to indicate |
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* whether the row or column are relative references. |
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* |
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* @param string $address The Excel cell reference in A1 format. |
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* @return array |
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*/ |
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public static function addressToRowCol($address) |
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{ |
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preg_match('/(\$)?([A-Z]+)(\$)?(\d+)/', $address, $match); |
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// return absolute column if there is a $ in the ref |
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$colRel = empty($match[1]); |
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$colRef = $match[2]; |
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$rowRel = empty($match[3]); |
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$row = $match[4]; |
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// Convert base26 column string to a number. |
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$expn = strlen($colRef) - 1; |
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$col = 0; |
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$colRefLength = strlen($colRef); |
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for ($i = 0; $i < $colRefLength; $i++) { |
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$col += (ord($colRef{$i}) - ord('A') + 1) * pow(26, $expn); |
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$expn--; |
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} |
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// Convert 1-index to zero-index |
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$row--; |
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$col--; |
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return array($row, $col, $rowRel, $colRel); |
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} |
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/** |
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* @param $row |
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* |
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* @throws \Exception |
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*/ |
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protected function validateRowIndex($row) |
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{ |
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if ($row > Biff8::MAX_ROW_IDX) { |
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throw new \Exception('Row index is beyond max row number'); |
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} |
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} |
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/** |
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* @param $col |
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* |
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* @throws \Exception |
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*/ |
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protected function validateColIndex($col) |
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{ |
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if ($col > Biff8::MAX_COL_IDX) { |
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throw new \Exception('Col index is beyond max col number'); |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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public function isRowRelative() |
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{ |
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return $this->rowRel; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isColRelative() |
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{ |
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return $this->colRel; |
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} |
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} |
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MAXakaWIZARD /
xls-writer
