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118 lines
3.7 KiB
118 lines
3.7 KiB
<?php |
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/** |
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* PHPExcel_CachedObjectStorage_Memory |
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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_CachedObjectStorage |
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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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class PHPExcel_CachedObjectStorage_Memory extends PHPExcel_CachedObjectStorage_CacheBase implements PHPExcel_CachedObjectStorage_ICache |
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{ |
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/** |
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* Dummy method callable from CacheBase, but unused by Memory cache |
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* |
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* @return void |
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*/ |
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protected function storeData() |
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{ |
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} |
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/** |
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* Add or Update a cell in cache identified by coordinate address |
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* |
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* @param string $pCoord Coordinate address of the cell to update |
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* @param PHPExcel_Cell $cell Cell to update |
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* @return PHPExcel_Cell |
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* @throws PHPExcel_Exception |
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*/ |
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public function addCacheData($pCoord, PHPExcel_Cell $cell) |
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{ |
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$this->cellCache[$pCoord] = $cell; |
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// Set current entry to the new/updated entry |
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$this->currentObjectID = $pCoord; |
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return $cell; |
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} |
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/** |
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* Get cell at a specific coordinate |
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* |
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* @param string $pCoord Coordinate of the cell |
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* @throws PHPExcel_Exception |
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* @return PHPExcel_Cell Cell that was found, or null if not found |
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*/ |
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public function getCacheData($pCoord) |
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{ |
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// Check if the entry that has been requested actually exists |
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if (!isset($this->cellCache[$pCoord])) { |
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$this->currentObjectID = null; |
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// Return null if requested entry doesn't exist in cache |
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return null; |
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} |
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// Set current entry to the requested entry |
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$this->currentObjectID = $pCoord; |
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// Return requested entry |
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return $this->cellCache[$pCoord]; |
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} |
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/** |
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* Clone the cell collection |
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* |
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* @param PHPExcel_Worksheet $parent The new worksheet |
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*/ |
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public function copyCellCollection(PHPExcel_Worksheet $parent) |
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{ |
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parent::copyCellCollection($parent); |
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$newCollection = array(); |
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foreach ($this->cellCache as $k => &$cell) { |
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$newCollection[$k] = clone $cell; |
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$newCollection[$k]->attach($this); |
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} |
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$this->cellCache = $newCollection; |
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} |
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/** |
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* Clear the cell collection and disconnect from our parent |
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* |
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*/ |
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public function unsetWorksheetCells() |
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{ |
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// Because cells are all stored as intact objects in memory, we need to detach each one from the parent |
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foreach ($this->cellCache as $k => &$cell) { |
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$cell->detach(); |
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$this->cellCache[$k] = null; |
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} |
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unset($cell); |
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$this->cellCache = array(); |
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// detach ourself from the worksheet, so that it can then delete this object successfully |
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$this->parent = null; |
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} |
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}
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