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89 lines
2.3 KiB
89 lines
2.3 KiB
4 years ago
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<?php
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/**
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* PHPExcel_Worksheet_CellIterator
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*
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* Copyright (c) 2006 - 2015 PHPExcel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* @category PHPExcel
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* @package PHPExcel_Worksheet
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* @copyright Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
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* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
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* @version ##VERSION##, ##DATE##
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*/
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abstract class PHPExcel_Worksheet_CellIterator
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{
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/**
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* PHPExcel_Worksheet to iterate
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*
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* @var PHPExcel_Worksheet
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*/
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protected $subject;
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/**
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* Current iterator position
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*
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* @var mixed
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*/
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protected $position = null;
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/**
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* Iterate only existing cells
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*
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* @var boolean
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*/
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protected $onlyExistingCells = false;
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/**
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* Destructor
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*/
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public function __destruct()
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{
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unset($this->subject);
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}
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/**
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* Get loop only existing cells
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*
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* @return boolean
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*/
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public function getIterateOnlyExistingCells()
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{
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return $this->onlyExistingCells;
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}
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/**
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* Validate start/end values for "IterateOnlyExistingCells" mode, and adjust if necessary
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*
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* @throws PHPExcel_Exception
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*/
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abstract protected function adjustForExistingOnlyRange();
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/**
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* Set the iterator to loop only existing cells
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*
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* @param boolean $value
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* @throws PHPExcel_Exception
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*/
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public function setIterateOnlyExistingCells($value = true)
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{
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$this->onlyExistingCells = (boolean) $value;
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$this->adjustForExistingOnlyRange();
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}
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}
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