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<?php /** * PHPExcel * * Copyright (c) 2006 - 2014 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_Worksheet * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL * @version ##VERSION##, ##DATE## */
/** * PHPExcel_Worksheet_RowCellIterator * * Used to iterate columns in a PHPExcel_Worksheet * * @category PHPExcel * @package PHPExcel_Worksheet * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) */ class PHPExcel_Worksheet_RowCellIterator extends PHPExcel_Worksheet_CellIterator implements Iterator { /** * Row index * * @var int */ protected $_rowIndex;
/** * Start position * * @var int */ protected $_startColumn = 0;
/** * End position * * @var int */ protected $_endColumn = 0;
/** * Create a new column iterator * * @param PHPExcel_Worksheet $subject The worksheet to iterate over * @param integer $rowIndex The row that we want to iterate * @param string $startColumn The column address at which to start iterating * @param string $endColumn Optionally, the column address at which to stop iterating */ public function __construct(PHPExcel_Worksheet $subject = null, $rowIndex = 1, $startColumn = 'A', $endColumn = null) { // Set subject and row index $this->_subject = $subject; $this->_rowIndex = $rowIndex; $this->resetEnd($endColumn); $this->resetStart($startColumn); }
/** * Destructor */ public function __destruct() { unset($this->_subject); }
/** * (Re)Set the start column and the current column pointer * * @param integer $startColumn The column address at which to start iterating * @return PHPExcel_Worksheet_RowCellIterator * @throws PHPExcel_Exception */ public function resetStart($startColumn = 'A') { $startColumnIndex = PHPExcel_Cell::columnIndexFromString($startColumn) - 1; $this->_startColumn = $startColumnIndex; $this->adjustForExistingOnlyRange(); $this->seek(PHPExcel_Cell::stringFromColumnIndex($this->_startColumn));
return $this; }
/** * (Re)Set the end column * * @param string $endColumn The column address at which to stop iterating * @return PHPExcel_Worksheet_RowCellIterator * @throws PHPExcel_Exception */ public function resetEnd($endColumn = null) { $endColumn = ($endColumn) ? $endColumn : $this->_subject->getHighestColumn(); $this->_endColumn = PHPExcel_Cell::columnIndexFromString($endColumn) - 1; $this->adjustForExistingOnlyRange();
return $this; }
/** * Set the column pointer to the selected column * * @param string $column The column address to set the current pointer at * @return PHPExcel_Worksheet_RowCellIterator * @throws PHPExcel_Exception */ public function seek($column = 'A') { $column = PHPExcel_Cell::columnIndexFromString($column) - 1; if (($column < $this->_startColumn) || ($column > $this->_endColumn)) { throw new PHPExcel_Exception("Column $column is out of range ({$this->_startColumn} - {$this->_endColumn})"); } elseif ($this->_onlyExistingCells && !($this->_subject->cellExistsByColumnAndRow($column, $this->_rowIndex))) { throw new PHPExcel_Exception('In "IterateOnlyExistingCells" mode and Cell does not exist'); } $this->_position = $column;
return $this; }
/** * Rewind the iterator to the starting column */ public function rewind() { $this->_position = $this->_startColumn; }
/** * Return the current cell in this worksheet row * * @return PHPExcel_Cell */ public function current() { return $this->_subject->getCellByColumnAndRow($this->_position, $this->_rowIndex); }
/** * Return the current iterator key * * @return string */ public function key() { return PHPExcel_Cell::stringFromColumnIndex($this->_position); }
/** * Set the iterator to its next value */ public function next() { do { ++$this->_position; } while (($this->_onlyExistingCells) && (!$this->_subject->cellExistsByColumnAndRow($this->_position, $this->_rowIndex)) && ($this->_position <= $this->_endColumn)); }
/** * Set the iterator to its previous value * * @throws PHPExcel_Exception */ public function prev() { if ($this->_position <= $this->_startColumn) { throw new PHPExcel_Exception( "Column is already at the beginning of range (" . PHPExcel_Cell::stringFromColumnIndex($this->_endColumn) . " - " . PHPExcel_Cell::stringFromColumnIndex($this->_endColumn) . ")" ); }
do { --$this->_position; } while (($this->_onlyExistingCells) && (!$this->_subject->cellExistsByColumnAndRow($this->_position, $this->_rowIndex)) && ($this->_position >= $this->_startColumn)); }
/** * Indicate if more columns exist in the worksheet range of columns that we're iterating * * @return boolean */ public function valid() { return $this->_position <= $this->_endColumn; }
/** * Validate start/end values for "IterateOnlyExistingCells" mode, and adjust if necessary * * @throws PHPExcel_Exception */ protected function adjustForExistingOnlyRange() { if ($this->_onlyExistingCells) { while ((!$this->_subject->cellExistsByColumnAndRow($this->_startColumn, $this->_rowIndex)) && ($this->_startColumn <= $this->_endColumn)) { ++$this->_startColumn; } if ($this->_startColumn > $this->_endColumn) { throw new PHPExcel_Exception('No cells exist within the specified range'); } while ((!$this->_subject->cellExistsByColumnAndRow($this->_endColumn, $this->_rowIndex)) && ($this->_endColumn >= $this->_startColumn)) { --$this->_endColumn; } if ($this->_endColumn < $this->_startColumn) { throw new PHPExcel_Exception('No cells exist within the specified range'); } } }
}
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