<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* TCPDF wrapper class.
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}

require_once TCPDF_INC;

/**
* PDF font to use.
*/
define('PMA_PDF_FONT', 'DejaVuSans');

/**
* PDF export base class providing basic configuration.
*
* @package PhpMyAdmin
*/
class PMA_PDF extends TCPDF
{
var $footerset;
var $Alias = array();

/**
* Constructs PDF and configures standard parameters.
*
* @param string $orientation page orientation
* @param string $unit unit
* @param mixed $format the format used for pages
* @param boolean $unicode true means that the input text is unicode
* @param string $encoding charset encoding; default is UTF-8.
* @param boolean $diskcache if true reduce the RAM memory usage by caching
* temporary data on filesystem (slower).
*
* @return void
* @access public
*/
public function __construct($orientation = 'P', $unit = 'mm', $format = 'A4',
$unicode = true, $encoding = 'UTF-8', $diskcache = false
) {
parent::__construct();
$this->SetAuthor('phpMyAdmin ' . PMA_VERSION);
$this->AddFont('DejaVuSans', '', 'dejavusans.php');
$this->AddFont('DejaVuSans', 'B', 'dejavusansb.php');
$this->SetFont(PMA_PDF_FONT, '', 14);
$this->setFooterFont(array(PMA_PDF_FONT, '', 14));
}

/**
* This function must be named "Footer" to work with the TCPDF library
*
* @return void
*/
function Footer()
{
// Check if footer for this page already exists
if (!isset($this->footerset[$this->page])) {
$this->SetY(-15);
$this->SetFont(PMA_PDF_FONT, '', 14);
$this->Cell(0, 6, __('Page number:') . ' ' . $this->getAliasNumPage() . '/' . $this->getAliasNbPages(), 'T', 0, 'C');
$this->Cell(0, 6, PMA_Util::localisedDate(), 0, 1, 'R');
$this->SetY(20);

// set footerset
$this->footerset[$this->page] = 1;
}
}

/**
* Function to test an empty string (was in tcpdf < 6.0)
*
* @param string $str to test
*
* @return boolean
*/
public function empty_string($str) {
return (is_null($str) OR (is_string($str) AND (strlen($str) == 0)));
}

/**
* Function to set alias which will be expanded on page rendering.
*
* @param string $name name of the alias
* @param string $value value of the alias
*
* @return void
*/
function SetAlias($name, $value)
{
$this->Alias[$this->UTF8ToUTF16BE($name)] = $this->UTF8ToUTF16BE($value);
}

/**
* Improved with alias expading.
*
* @return void
*/
function _putpages()
{
if (count($this->Alias) > 0) {
$nb = count($this->pages);
for ($n = 1;$n <= $nb;$n++) {
$this->pages[$n] = strtr($this->pages[$n], $this->Alias);
}
}
parent::_putpages();
}

/**
* Displays an error message
*
* @param string $error_message the error mesage
*
* @return void
*/
function Error($error_message = '')
{
PMA_Message::error(
__('Error while creating PDF:') . ' ' . $error_message
)->display();
exit;
}

/**
* Sends file as a download to user.
*
* @param string $filename file name
*
* @return void
*/
function Download($filename)
{
$pdfData = $this->getPDFData();
PMA_Response::getInstance()->disable();
PMA_downloadHeader($filename, 'application/pdf', strlen($pdfData));
echo $pdfData;
}
}