Viewing file:  BookmarkWriter.php (3.56 KB) -rw-r--r--
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<?php
namespace Mpdf\Writer;
use Mpdf\Strict;
use Mpdf\Mpdf;
final class BookmarkWriter
{
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 writeBookmarks() // _putbookmarks
{
$nb = count($this->mpdf->BMoutlines);
if ($nb === 0) {
return;
}
$bmo = $this->mpdf->BMoutlines;
$this->mpdf->BMoutlines = [];
$lastlevel = -1;
for ($i = 0; $i < count($bmo); $i++) {
if ($bmo[$i]['l'] > 0) {
while ($bmo[$i]['l'] - $lastlevel > 1) { // If jump down more than one level, insert a new entry
$new = $bmo[$i];
$new['t'] = "[" . $new['t'] . "]"; // Put [] around text/title to highlight
$new['l'] = $lastlevel + 1;
$lastlevel++;
$this->mpdf->BMoutlines[] = $new;
}
}
$this->mpdf->BMoutlines[] = $bmo[$i];
$lastlevel = $bmo[$i]['l'];
}
$nb = count($this->mpdf->BMoutlines);
$lru = [];
$level = 0;
foreach ($this->mpdf->BMoutlines as $i => $o) {
if ($o['l'] > 0) {
$parent = $lru[$o['l'] - 1];
// Set parent and last pointers
$this->mpdf->BMoutlines[$i]['parent'] = $parent;
$this->mpdf->BMoutlines[$parent]['last'] = $i;
if ($o['l'] > $level) {
// Level increasing: set first pointer
$this->mpdf->BMoutlines[$parent]['first'] = $i;
}
} else {
$this->mpdf->BMoutlines[$i]['parent'] = $nb;
}
if ($o['l'] <= $level and $i > 0) {
// Set prev and next pointers
$prev = $lru[$o['l']];
$this->mpdf->BMoutlines[$prev]['next'] = $i;
$this->mpdf->BMoutlines[$i]['prev'] = $prev;
}
$lru[$o['l']] = $i;
$level = $o['l'];
}
// Outline items
$n = $this->mpdf->n + 1;
foreach ($this->mpdf->BMoutlines as $i => $o) {
$this->writer->object();
$this->writer->write('<</Title ' . $this->writer->utf16BigEndianTextString($o['t']));
$this->writer->write('/Parent ' . ($n + $o['parent']) . ' 0 R');
if (isset($o['prev'])) {
$this->writer->write('/Prev ' . ($n + $o['prev']) . ' 0 R');
}
if (isset($o['next'])) {
$this->writer->write('/Next ' . ($n + $o['next']) . ' 0 R');
}
if (isset($o['first'])) {
$this->writer->write('/First ' . ($n + $o['first']) . ' 0 R');
}
if (isset($o['last'])) {
$this->writer->write('/Last ' . ($n + $o['last']) . ' 0 R');
}
if (isset($this->mpdf->pageDim[$o['p']]['h'])) {
$h = $this->mpdf->pageDim[$o['p']]['h'];
} else {
$h = 0;
}
$this->writer->write(sprintf('/Dest [%d 0 R /XYZ 0 %.3F null]', 1 + 2 * ($o['p']), ($h - $o['y']) * Mpdf::SCALE));
if (isset($this->mpdf->bookmarkStyles) && isset($this->mpdf->bookmarkStyles[$o['l']])) {
// font style
$bms = $this->mpdf->bookmarkStyles[$o['l']]['style'];
$style = 0;
if (strpos($bms, 'B') !== false) {
$style += 2;
}
if (strpos($bms, 'I') !== false) {
$style += 1;
}
$this->writer->write(sprintf('/F %d', $style));
// Colour
$col = $this->mpdf->bookmarkStyles[$o['l']]['color'];
if (isset($col) && is_array($col) && count($col) == 3) {
$this->writer->write(sprintf('/C [%.3F %.3F %.3F]', ($col[0] / 255), ($col[1] / 255), ($col[2] / 255)));
}
}
$this->writer->write('/Count 0>>');
$this->writer->write('endobj');
}
// Outline root
$this->writer->object();
$this->mpdf->OutlineRoot = $this->mpdf->n;
$this->writer->write('<</Type /BMoutlines /First ' . $n . ' 0 R');
$this->writer->write('/Last ' . ($n + $lru[0]) . ' 0 R>>');
$this->writer->write('endobj');
}
}
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