diff options
Diffstat (limited to 'admin/survey/excel/PHPExcel/CachedObjectStorage/MemoryGZip.php')
| -rw-r--r-- | admin/survey/excel/PHPExcel/CachedObjectStorage/MemoryGZip.php | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/admin/survey/excel/PHPExcel/CachedObjectStorage/MemoryGZip.php b/admin/survey/excel/PHPExcel/CachedObjectStorage/MemoryGZip.php new file mode 100644 index 0000000..6941231 --- /dev/null +++ b/admin/survey/excel/PHPExcel/CachedObjectStorage/MemoryGZip.php @@ -0,0 +1,123 @@ +<?php
+/**
+ * PHPExcel
+ *
+ * Copyright (c) 2006 - 2012 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_CachedObjectStorage
+ * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
+ * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
+ * @version 1.7.8, 2012-10-12
+ */
+
+
+/**
+ * PHPExcel_CachedObjectStorage_MemoryGZip
+ *
+ * @category PHPExcel
+ * @package PHPExcel_CachedObjectStorage
+ * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_CachedObjectStorage_MemoryGZip extends PHPExcel_CachedObjectStorage_CacheBase implements PHPExcel_CachedObjectStorage_ICache {
+
+ /**
+ * Store cell data in cache for the current cell object if it's "dirty",
+ * and the 'nullify' the current cell object
+ *
+ * @return void
+ * @throws Exception
+ */
+ private function _storeData() {
+ if ($this->_currentCellIsDirty) {
+ $this->_currentObject->detach();
+
+ $this->_cellCache[$this->_currentObjectID] = gzdeflate(serialize($this->_currentObject));
+ $this->_currentCellIsDirty = false;
+ }
+ $this->_currentObjectID = $this->_currentObject = null;
+ } // function _storeData()
+
+
+ /**
+ * Add or Update a cell in cache identified by coordinate address
+ *
+ * @param string $pCoord Coordinate address of the cell to update
+ * @param PHPExcel_Cell $cell Cell to update
+ * @return void
+ * @throws Exception
+ */
+ public function addCacheData($pCoord, PHPExcel_Cell $cell) {
+ if (($pCoord !== $this->_currentObjectID) && ($this->_currentObjectID !== null)) {
+ $this->_storeData();
+ }
+
+ $this->_currentObjectID = $pCoord;
+ $this->_currentObject = $cell;
+ $this->_currentCellIsDirty = true;
+
+ return $cell;
+ } // function addCacheData()
+
+
+ /**
+ * Get cell at a specific coordinate
+ *
+ * @param string $pCoord Coordinate of the cell
+ * @throws Exception
+ * @return PHPExcel_Cell Cell that was found, or null if not found
+ */
+ public function getCacheData($pCoord) {
+ if ($pCoord === $this->_currentObjectID) {
+ return $this->_currentObject;
+ }
+ $this->_storeData();
+
+ // Check if the entry that has been requested actually exists
+ if (!isset($this->_cellCache[$pCoord])) {
+ // Return null if requested entry doesn't exist in cache
+ return null;
+ }
+
+ // Set current entry to the requested entry
+ $this->_currentObjectID = $pCoord;
+ $this->_currentObject = unserialize(gzinflate($this->_cellCache[$pCoord]));
+ // Re-attach the parent worksheet
+ $this->_currentObject->attach($this->_parent);
+
+ // Return requested entry
+ return $this->_currentObject;
+ } // function getCacheData()
+
+
+ /**
+ * Clear the cell collection and disconnect from our parent
+ *
+ * @return void
+ */
+ public function unsetWorksheetCells() {
+ if(!is_null($this->_currentObject)) {
+ $this->_currentObject->detach();
+ $this->_currentObject = $this->_currentObjectID = null;
+ }
+ $this->_cellCache = array();
+
+ // detach ourself from the worksheet, so that it can then delete this object successfully
+ $this->_parent = null;
+ } // function unsetWorksheetCells()
+
+}
|