<?php
/*
* Module written/ported by Xavier Noguer <xnoguer@rezebra.com>
*
* PERL Spreadsheet::WriteExcel module.
*
* The author of the Spreadsheet::WriteExcel module is John McNamara
* <jmcnamara@cpan.org>
*
* I _DO_ maintain this code, and John McNamara has nothing to do with the
* porting of this code to PHP. Any questions directly related to this
* class library should be directed to me.
*
* License Information:
*
* Spreadsheet_Excel_Writer: A library for generating Excel Spreadsheets
* Copyright (c) 2002-2003 Xavier Noguer xnoguer@rezebra.com
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
//require_once 'PEAR.php';
require_once dirname ( __FILE__ ) . '/Workbook.php';
/**
* Class for writing Excel Spreadsheets. This class should change COMPLETELY.
*
* @author Xavier Noguer <xnoguer@rezebra.com>
* @category FileFormats
* @package Spreadsheet_Excel_Writer
*/
class Spreadsheet_Excel_Writer extends Spreadsheet_Excel_Writer_Workbook
{
/**
* The constructor. It just creates a Workbook
*
* @param string $filename The optional filename for the Workbook.
* @return Spreadsheet_Excel_Writer_Workbook The Workbook created
*/
function Spreadsheet_Excel_Writer($filename = '')
{
$this->_filename = $filename;
$this->Spreadsheet_Excel_Writer_Workbook($filename);
}
/**
* Send HTTP headers for the Excel file.
*
* @param string $filename The filename to use for HTTP headers
* @access public
*/
function send($filename)
{
header("Content-type: application/vnd.ms-excel");
header("Content-Disposition: attachment; filename=\"$filename\"");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0,pre-check=0");
header("Pragma: public");
}
/**
* Utility function for writing formulas
* Converts a cell's coordinates to the A1 format.
*
* @access public
* @static
* @param integer $row Row for the cell to convert (0-indexed).
* @param integer $col Column for the cell to convert (0-indexed).
* @return string The cell identifier in A1 format
*/
function rowcolToCell($row, $col)
{
if ($col > 255) { //maximum column value exceeded
return new PEAR_Error("Maximum column value exceeded: $col");
}
$int = (int)($col / 26);
$frac = $col % 26;
$chr1 = '';
if ($int > 0) {
$chr1 = chr(ord('A') + $int - 1);
}
$chr2 = chr(ord('A') + $frac);
$row++;
return $chr1 . $chr2 . $row;
}
}
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