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<?php
namespace Mpdf\Writer;
use Mpdf\Strict;
use Mpdf\Mpdf;
use Mpdf\Form;
final class PageWriter
{
use Strict;
/**
* @var \Mpdf\Mpdf
*/
private $mpdf;
/**
* @var \Mpdf\Form
*/
private $form;
/**
* @var \Mpdf\Writer\BaseWriter
*/
private $writer;
/**
* @var \Mpdf\Writer\MetadataWriter
*/
private $metadataWriter;
public function __construct(Mpdf $mpdf, Form $form, BaseWriter $writer, MetadataWriter $metadataWriter)
{
$this->mpdf = $mpdf;
$this->form = $form;
$this->writer = $writer;
$this->metadataWriter = $metadataWriter;
}
public function writePages() // _putpages
{
$nb = $this->mpdf->page;
$filter = $this->mpdf->compress ? '/Filter /FlateDecode ' : '';
if ($this->mpdf->DefOrientation === 'P') {
$defwPt = $this->mpdf->fwPt;
$defhPt = $this->mpdf->fhPt;
} else {
$defwPt = $this->mpdf->fhPt;
$defhPt = $this->mpdf->fwPt;
}
$annotid = (3 + 2 * $nb);
// Active Forms
$totaladdnum = 0;
for ($n = 1; $n <= $nb; $n++) {
if (isset($this->mpdf->PageLinks[$n])) {
$totaladdnum += count($this->mpdf->PageLinks[$n]);
}
/* -- ANNOTATIONS -- */
if (isset($this->mpdf->PageAnnots[$n])) {
foreach ($this->mpdf->PageAnnots[$n] as $k => $pl) {
if (!empty($pl['opt']['popup']) || !empty($pl['opt']['file'])) {
$totaladdnum += 2;
} else {
$totaladdnum++;
}
}
}
/* -- END ANNOTATIONS -- */
/* -- FORMS -- */
if (count($this->form->forms) > 0) {
$this->form->countPageForms($n, $totaladdnum);
}
/* -- END FORMS -- */
}
/* -- FORMS -- */
// Make a note in the radio button group of the obj_id it will have
$ctr = 0;
if (count($this->form->form_radio_groups)) {
foreach ($this->form->form_radio_groups as $name => $frg) {
$this->form->form_radio_groups[$name]['obj_id'] = $annotid + $totaladdnum + $ctr;
$ctr++;
}
}
/* -- END FORMS -- */
// Select unused fonts (usually default font)
$unused = [];
foreach ($this->mpdf->fonts as $fk => $font) {
if (isset($font['type']) && $font['type'] === 'TTF' && !$font['used']) {
$unused[] = $fk;
}
}
for ($n = 1; $n <= $nb; $n++) {
$thispage = $this->mpdf->pages[$n];
if (isset($this->mpdf->OrientationChanges[$n])) {
$hPt = $this->mpdf->pageDim[$n]['w'] * Mpdf::SCALE;
$wPt = $this->mpdf->pageDim[$n]['h'] * Mpdf::SCALE;
$owidthPt_LR = $this->mpdf->pageDim[$n]['outer_width_TB'] * Mpdf::SCALE;
$owidthPt_TB = $this->mpdf->pageDim[$n]['outer_width_LR'] * Mpdf::SCALE;
} else {
$wPt = $this->mpdf->pageDim[$n]['w'] * Mpdf::SCALE;
$hPt = $this->mpdf->pageDim[$n]['h'] * Mpdf::SCALE;
$owidthPt_LR = $this->mpdf->pageDim[$n]['outer_width_LR'] * Mpdf::SCALE;
$owidthPt_TB = $this->mpdf->pageDim[$n]['outer_width_TB'] * Mpdf::SCALE;
}
// Remove references to unused fonts (usually default font)
foreach ($unused as $fk) {
if ($this->mpdf->fonts[$fk]['sip'] || $this->mpdf->fonts[$fk]['smp']) {
foreach ($this->mpdf->fonts[$fk]['subsetfontids'] as $k => $fid) {
$thispage = preg_replace('/\s\/F' . $fid . ' \d[\d.]* Tf\s/is', ' ', $thispage);
}
} else {
$thispage = preg_replace('/\s\/F' . $this->mpdf->fonts[$fk]['i'] . ' \d[\d.]* Tf\s/is', ' ', $thispage);
}
}
// Clean up repeated /GS1 gs statements
// For some reason using + for repetition instead of {2,20} crashes PHP Script Interpreter ???
$thispage = preg_replace('/(\/GS1 gs\n){2,20}/', "/GS1 gs\n", $thispage);
$thispage = preg_replace('/(\s*___BACKGROUND___PATTERNS' . $this->mpdf->uniqstr . '\s*)/', ' ', $thispage);
$thispage = preg_replace('/(\s*___HEADER___MARKER' . $this->mpdf->uniqstr . '\s*)/', ' ', $thispage);
$thispage = preg_replace('/(\s*___PAGE___START' . $this->mpdf->uniqstr . '\s*)/', ' ', $thispage);
$thispage = preg_replace('/(\s*___TABLE___BACKGROUNDS' . $this->mpdf->uniqstr . '\s*)/', ' ', $thispage);
// mPDF 5.7.3 TRANSFORMS
while (preg_match('/(\% BTR(.*?)\% ETR)/is', $thispage, $m)) {
$thispage = preg_replace('/(\% BTR.*?\% ETR)/is', '', $thispage, 1) . "\n" . $m[2];
}
// Page
$this->writer->object();
$this->writer->write('<</Type /Page');
$this->writer->write('/Parent 1 0 R');
if (isset($this->mpdf->OrientationChanges[$n])) {
$this->writer->write(sprintf('/MediaBox [0 0 %.3F %.3F]', $hPt, $wPt));
// If BleedBox is defined, it must be larger than the TrimBox, but smaller than the MediaBox
$bleedMargin = $this->mpdf->pageDim[$n]['bleedMargin'] * Mpdf::SCALE;
if ($bleedMargin && ($owidthPt_TB || $owidthPt_LR)) {
$x0 = $owidthPt_TB - $bleedMargin;
$y0 = $owidthPt_LR - $bleedMargin;
$x1 = $hPt - $owidthPt_TB + $bleedMargin;
$y1 = $wPt - $owidthPt_LR + $bleedMargin;
$this->writer->write(sprintf('/BleedBox [%.3F %.3F %.3F %.3F]', $x0, $y0, $x1, $y1));
}
$this->writer->write(sprintf('/TrimBox [%.3F %.3F %.3F %.3F]', $owidthPt_TB, $owidthPt_LR, $hPt - $owidthPt_TB, $wPt - $owidthPt_LR));
if ($this->mpdf->displayDefaultOrientation) {
if ($this->mpdf->DefOrientation === 'P') {
$this->writer->write('/Rotate 270');
} else {
$this->writer->write('/Rotate 90');
}
}
} else { // elseif($wPt != $defwPt || $hPt != $defhPt) {
$this->writer->write(sprintf('/MediaBox [0 0 %.3F %.3F]', $wPt, $hPt));
$bleedMargin = $this->mpdf->pageDim[$n]['bleedMargin'] * Mpdf::SCALE;
if ($bleedMargin && ($owidthPt_TB || $owidthPt_LR)) {
$x0 = $owidthPt_LR - $bleedMargin;
$y0 = $owidthPt_TB - $bleedMargin;
$x1 = $wPt - $owidthPt_LR + $bleedMargin;
$y1 = $hPt - $owidthPt_TB + $bleedMargin;
$this->writer->write(sprintf('/BleedBox [%.3F %.3F %.3F %.3F]', $x0, $y0, $x1, $y1));
}
$this->writer->write(sprintf('/TrimBox [%.3F %.3F %.3F %.3F]', $owidthPt_LR, $owidthPt_TB, $wPt - $owidthPt_LR, $hPt - $owidthPt_TB));
}
$this->writer->write('/Resources 2 0 R');
// Important to keep in RGB colorSpace when using transparency
if (!$this->mpdf->PDFA && !$this->mpdf->PDFX) {
if ($this->mpdf->restrictColorSpace === 3) {
$this->writer->write('/Group << /Type /Group /S /Transparency /CS /DeviceCMYK >> ');
} elseif ($this->mpdf->restrictColorSpace === 1) {
$this->writer->write('/Group << /Type /Group /S /Transparency /CS /DeviceGray >> ');
} else {
$this->writer->write('/Group << /Type /Group /S /Transparency /CS /DeviceRGB >> ');
}
}
$annotsnum = 0;
$embeddedfiles = []; // mPDF 5.7.2 /EmbeddedFiles
if (isset($this->mpdf->PageLinks[$n])) {
$annotsnum += count($this->mpdf->PageLinks[$n]);
}
if (isset($this->mpdf->PageAnnots[$n])) {
foreach ($this->mpdf->PageAnnots[$n] as $k => $pl) {
if (!empty($pl['opt']['file'])) {
$embeddedfiles[$annotsnum + 1] = true;
} // mPDF 5.7.2 /EmbeddedFiles
if (!empty($pl['opt']['popup']) || !empty($pl['opt']['file'])) {
$annotsnum += 2;
} else {
$annotsnum++;
}
$this->mpdf->PageAnnots[$n][$k]['pageobj'] = $this->mpdf->n;
}
}
// Active Forms
$formsnum = 0;
if (count($this->form->forms) > 0) {
foreach ($this->form->forms as $val) {
if ($val['page'] == $n) {
$formsnum++;
}
}
}
if ($annotsnum || $formsnum) {
$s = '/Annots [ ';
for ($i = 0; $i < $annotsnum; $i++) {
if (!isset($embeddedfiles[$i])) {
$s .= ($annotid + $i) . ' 0 R ';
} // mPDF 5.7.2 /EmbeddedFiles
}
$annotid += $annotsnum;
/* -- FORMS -- */
if (count($this->form->forms) > 0) {
$this->form->addFormIds($n, $s, $annotid);
}
/* -- END FORMS -- */
$s .= '] ';
$this->writer->write($s);
}
$this->writer->write('/Contents ' . ($this->mpdf->n + 1) . ' 0 R>>');
$this->writer->write('endobj');
// Page content
$this->writer->object();
$p = $this->mpdf->compress ? gzcompress($thispage) : $thispage;
$this->writer->write('<<' . $filter . '/Length ' . strlen($p) . '>>');
$this->writer->stream($p);
$this->writer->write('endobj');
}
$this->metadataWriter->writeAnnotations(); // mPDF 5.7.2
// Pages root
$this->mpdf->offsets[1] = strlen($this->mpdf->buffer);
$this->writer->write('1 0 obj');
$this->writer->write('<</Type /Pages');
$kids = '/Kids [';
for ($i = 0; $i < $nb; $i++) {
$kids .= (3 + 2 * $i) . ' 0 R ';
}
$this->writer->write($kids . ']');
$this->writer->write('/Count ' . $nb);
$this->writer->write(sprintf('/MediaBox [0 0 %.3F %.3F]', $defwPt, $defhPt));
$this->writer->write('>>');
$this->writer->write('endobj');
}
}