<?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
 * @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    ##VERSION##, ##DATE##
 */

error_reporting(E_ALL);

date_default_timezone_set('Europe/London');

/** PHPExcel_IOFactory */
require_once '../Classes/PHPExcel/IOFactory.php';


// Check prerequisites
if (!file_exists("06largescale.xlsx")) {
	exit("Please run 06largescale.php first.\n");
}

class MyReadFilter implements PHPExcel_Reader_IReadFilter
{
	public function readCell($column, $row, $worksheetName = '') {
		// Read title row and rows 20 - 30
		if ($row == 1 || ($row >= 20 && $row <= 30)) {
			return true;
		}

		return false;
	}
}


echo date('H:i:s') , " Load from Excel2007 file" , PHP_EOL;
$objReader = PHPExcel_IOFactory::createReader('Excel2007');
$objReader->setReadFilter( new MyReadFilter() );
$objPHPExcel = $objReader->load("06largescale.xlsx");

echo date('H:i:s') , " Remove unnecessary rows" , PHP_EOL;
$objPHPExcel->getActiveSheet()->removeRow(2, 18);

echo date('H:i:s') , " Write to Excel2007 format" , PHP_EOL;
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->save(str_replace('.php', '.xlsx', __FILE__));
echo date('H:i:s') , " File written to " , str_replace('.php', '.xlsx', __FILE__) , PHP_EOL;


// Echo memory peak usage
echo date('H:i:s') , " Peak memory usage: " , (memory_get_peak_usage(true) / 1024 / 1024) , " MB" , PHP_EOL;

// Echo done
echo date('H:i:s') , " Done writing files" , PHP_EOL;