mpdf/src/Writer/FormWriter.php at development · swz359359/mpdf · GitHub

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<?php

namespace Mpdf\Writer;

use Mpdf\Strict;

use Mpdf\Mpdf;

final class FormWriter
{

use Strict;

/**
 * @var \Mpdf\Mpdf
 */
private $mpdf;

/**
 * @var \Mpdf\Writer\BaseWriter
 */
private $writer;

public function __construct(Mpdf $mpdf, BaseWriter $writer)
{
$this->mpdf = $mpdf;
$this->writer = $writer;
}

public function writeFormObjects() // _putformobjects
{
foreach ($this->mpdf->formobjects as $file => $info) {

$this->writer->object();

$this->mpdf->formobjects[$file]['n'] = $this->mpdf->n;

$this->writer->write('<</Type /XObject');
$this->writer->write('/Subtype /Form');
$this->writer->write('/Group ' . ($this->mpdf->n + 1) . ' 0 R');
$this->writer->write('/BBox [' . $info['x'] . ' ' . $info['y'] . ' ' . ($info['w'] + $info['x']) . ' ' . ($info['h'] + $info['y']) . ']');

if ($this->mpdf->compress) {
$this->writer->write('/Filter /FlateDecode');
}

$data = $this->mpdf->compress ? gzcompress($info['data']) : $info['data'];
$this->writer->write('/Length ' . strlen($data) . '>>');
$this->writer->stream($data);

unset($this->mpdf->formobjects[$file]['data']);

$this->writer->write('endobj');

// Required for SVG transparency (opacity) to work
$this->writer->object();
$this->writer->write('<</Type /Group');
$this->writer->write('/S /Transparency');
$this->writer->write('>>');
$this->writer->write('endobj');
}
}
}