drupal-civicrm/sites/all/modules/civicrm/CRM/Utils/PDF/Utils.php

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2018-01-14 15:10:16 +02:00
<?php
/*
+--------------------------------------------------------------------+
| CiviCRM version 4.7 |
+--------------------------------------------------------------------+
| Copyright CiviCRM LLC (c) 2004-2017 |
+--------------------------------------------------------------------+
| This file is a part of CiviCRM. |
| |
| CiviCRM is free software; you can copy, modify, and distribute it |
| under the terms of the GNU Affero General Public License |
| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
| |
| CiviCRM 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 Affero General Public License for more details. |
| |
| You should have received a copy of the GNU Affero General Public |
| License and the CiviCRM Licensing Exception along |
| with this program; if not, contact CiviCRM LLC |
| at info[AT]civicrm[DOT]org. If you have questions about the |
| GNU Affero General Public License or the licensing of CiviCRM, |
| see the CiviCRM license FAQ at http://civicrm.org/licensing |
+--------------------------------------------------------------------+
*/
use Dompdf\Dompdf;
use Dompdf\Options;
/**
*
* @package CRM
* @copyright CiviCRM LLC (c) 2004-2017
*/
class CRM_Utils_PDF_Utils {
/**
* @param array $text
* List of HTML snippets.
* @param string $fileName
* The logical filename to display.
* Ex: "HelloWorld.pdf".
* @param bool $output
* FALSE to display PDF. TRUE to return as string.
* @param null $pdfFormat
* Unclear. Possibly PdfFormat or formValues.
*
* @return string|void
*/
public static function html2pdf(&$text, $fileName = 'civicrm.pdf', $output = FALSE, $pdfFormat = NULL) {
if (is_array($text)) {
$pages = &$text;
}
else {
$pages = array($text);
}
// Get PDF Page Format
$format = CRM_Core_BAO_PdfFormat::getDefaultValues();
if (is_array($pdfFormat)) {
// PDF Page Format parameters passed in
$format = array_merge($format, $pdfFormat);
}
else {
// PDF Page Format ID passed in
$format = CRM_Core_BAO_PdfFormat::getById($pdfFormat);
}
$paperSize = CRM_Core_BAO_PaperSize::getByName($format['paper_size']);
$paper_width = self::convertMetric($paperSize['width'], $paperSize['metric'], 'pt');
$paper_height = self::convertMetric($paperSize['height'], $paperSize['metric'], 'pt');
// dompdf requires dimensions in points
$paper_size = array(0, 0, $paper_width, $paper_height);
$orientation = CRM_Core_BAO_PdfFormat::getValue('orientation', $format);
$metric = CRM_Core_BAO_PdfFormat::getValue('metric', $format);
$t = CRM_Core_BAO_PdfFormat::getValue('margin_top', $format);
$r = CRM_Core_BAO_PdfFormat::getValue('margin_right', $format);
$b = CRM_Core_BAO_PdfFormat::getValue('margin_bottom', $format);
$l = CRM_Core_BAO_PdfFormat::getValue('margin_left', $format);
$stationery_path_partial = CRM_Core_BAO_PdfFormat::getValue('stationery', $format);
$stationery_path = NULL;
if (strlen($stationery_path_partial)) {
$doc_root = $_SERVER['DOCUMENT_ROOT'];
$stationery_path = $doc_root . "/" . $stationery_path_partial;
}
$margins = array($metric, $t, $r, $b, $l);
$config = CRM_Core_Config::singleton();
// Add a special region for the HTML header of PDF files:
$pdfHeaderRegion = CRM_Core_Region::instance('export-document-header', FALSE);
$htmlHeader = ($pdfHeaderRegion) ? $pdfHeaderRegion->render('', FALSE) : '';
$html = "
<html>
<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
<style>@page { margin: {$t}{$metric} {$r}{$metric} {$b}{$metric} {$l}{$metric}; }</style>
<style type=\"text/css\">@import url({$config->userFrameworkResourceURL}css/print.css);</style>
{$htmlHeader}
</head>
<body>
<div id=\"crm-container\">\n";
// Strip <html>, <header>, and <body> tags from each page
$htmlElementstoStrip = array(
'@<head[^>]*?>.*?</head>@siu',
'@<script[^>]*?>.*?</script>@siu',
'@<body>@siu',
'@</body>@siu',
'@<html[^>]*?>@siu',
'@</html>@siu',
'@<!DOCTYPE[^>]*?>@siu',
);
$htmlElementsInstead = array('', '', '', '', '', '');
foreach ($pages as & $page) {
$page = preg_replace($htmlElementstoStrip,
$htmlElementsInstead,
$page
);
}
// Glue the pages together
$html .= implode("\n<div style=\"page-break-after: always\"></div>\n", $pages);
$html .= "
</div>
</body>
</html>";
if ($config->wkhtmltopdfPath) {
return self::_html2pdf_wkhtmltopdf($paper_size, $orientation, $margins, $html, $output, $fileName);
}
else {
return self::_html2pdf_dompdf($paper_size, $orientation, $html, $output, $fileName);
//return self::_html2pdf_tcpdf($paper_size, $orientation, $margins, $html, $output, $fileName, $stationery_path);
}
}
/**
* Convert html to tcpdf.
*
* @param $paper_size
* @param $orientation
* @param $margins
* @param $html
* @param $output
* @param $fileName
* @param $stationery_path
*/
public static function _html2pdf_tcpdf($paper_size, $orientation, $margins, $html, $output, $fileName, $stationery_path) {
// Documentation on the TCPDF library can be found at: http://www.tcpdf.org
// This function also uses the FPDI library documented at: http://www.setasign.com/products/fpdi/about/
// Syntax borrowed from https://github.com/jake-mw/CDNTaxReceipts/blob/master/cdntaxreceipts.functions.inc
require_once 'tcpdf/tcpdf.php';
require_once 'FPDI/fpdi.php'; // This library is only in the 'packages' area as of version 4.5
$paper_size_arr = array($paper_size[2], $paper_size[3]);
$pdf = new TCPDF($orientation, 'pt', $paper_size_arr);
$pdf->Open();
if (is_readable($stationery_path)) {
$pdf->SetStationery($stationery_path);
}
$pdf->SetAuthor('');
$pdf->SetKeywords('CiviCRM.org');
$pdf->setPageUnit($margins[0]);
$pdf->SetMargins($margins[4], $margins[1], $margins[2], TRUE);
$pdf->setJPEGQuality('100');
$pdf->SetAutoPageBreak(TRUE, $margins[3]);
$pdf->AddPage();
$ln = TRUE;
$fill = FALSE;
$reset_parm = FALSE;
$cell = FALSE;
$align = '';
// output the HTML content
$pdf->writeHTML($html, $ln, $fill, $reset_parm, $cell, $align);
// reset pointer to the last page
$pdf->lastPage();
// close and output the PDF
$pdf->Close();
$pdf_file = 'CiviLetter' . '.pdf';
$pdf->Output($pdf_file, 'D');
CRM_Utils_System::civiExit(1);
}
/**
* @param $paper_size
* @param $orientation
* @param $html
* @param $output
* @param string $fileName
*
* @return string
*/
public static function _html2pdf_dompdf($paper_size, $orientation, $html, $output, $fileName) {
// CRM-12165 - Remote file support required for image handling.
$options = new Options();
$options->set('isRemoteEnabled', TRUE);
$dompdf = new DOMPDF($options);
$dompdf->set_paper($paper_size, $orientation);
$dompdf->load_html($html);
$dompdf->render();
if ($output) {
return $dompdf->output();
}
else {
// CRM-19183 remove .pdf extension from filename
$fileName = basename($fileName, ".pdf");
$dompdf->stream($fileName);
}
}
/**
* @param $paper_size
* @param $orientation
* @param $margins
* @param $html
* @param $output
* @param string $fileName
*/
public static function _html2pdf_wkhtmltopdf($paper_size, $orientation, $margins, $html, $output, $fileName) {
require_once 'packages/snappy/src/autoload.php';
$config = CRM_Core_Config::singleton();
$snappy = new Knp\Snappy\Pdf($config->wkhtmltopdfPath);
$snappy->setOption("page-width", $paper_size[2] . "pt");
$snappy->setOption("page-height", $paper_size[3] . "pt");
$snappy->setOption("orientation", $orientation);
$snappy->setOption("margin-top", $margins[1] . $margins[0]);
$snappy->setOption("margin-right", $margins[2] . $margins[0]);
$snappy->setOption("margin-bottom", $margins[3] . $margins[0]);
$snappy->setOption("margin-left", $margins[4] . $margins[0]);
$pdf = $snappy->getOutputFromHtml($html);
if ($output) {
return $pdf;
}
else {
CRM_Utils_System::setHttpHeader('Content-Type', 'application/pdf');
CRM_Utils_System::setHttpHeader('Content-Disposition', 'attachment; filename="' . $fileName . '"');
echo $pdf;
}
}
/**
* convert value from one metric to another.
*
* @param $value
* @param $from
* @param $to
* @param null $precision
*
* @return float|int
*/
public static function convertMetric($value, $from, $to, $precision = NULL) {
switch ($from . $to) {
case 'incm':
$value *= 2.54;
break;
case 'inmm':
$value *= 25.4;
break;
case 'inpt':
$value *= 72;
break;
case 'cmin':
$value /= 2.54;
break;
case 'cmmm':
$value *= 10;
break;
case 'cmpt':
$value *= 72 / 2.54;
break;
case 'mmin':
$value /= 25.4;
break;
case 'mmcm':
$value /= 10;
break;
case 'mmpt':
$value *= 72 / 25.4;
break;
case 'ptin':
$value /= 72;
break;
case 'ptcm':
$value *= 2.54 / 72;
break;
case 'ptmm':
$value *= 25.4 / 72;
break;
}
if (!is_null($precision)) {
$value = round($value, $precision);
}
return $value;
}
}