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<?php

namespace Mpdf\Writer;

use Mpdf\Strict;
use Mpdf\Fonts\FontCache;
use Mpdf\Mpdf;
use Mpdf\TTFontFile;

class FontWriter
{

	use Strict;

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

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

	/**
	 * @var \Mpdf\Fonts\FontCache
	 */
	private $fontCache;

	/**
	 * @var string
	 */
	private $fontDescriptor;

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

	public function writeFonts()
	{
		foreach ($this->mpdf->FontFiles as $fontkey => $info) {
			// TrueType embedded
			if (isset($info['type']) && $info['type'] === 'TTF' && !$info['sip'] && !$info['smp']) {
				$used = true;
				$asSubset = false;
				foreach ($this->mpdf->fonts as $k => $f) {
					if (isset($f['fontkey']) && $f['fontkey'] === $fontkey && $f['type'] === 'TTF') {
						$used = $f['used'];
						if ($used) {
							$nChars = (ord($f['cw'][0]) << 8) + ord($f['cw'][1]);
							$usage = (int) (count($f['subset']) * 100 / $nChars);
							$fsize = $info['length1'];
							// Always subset the very large TTF files
							if ($fsize > ($this->mpdf->maxTTFFilesize * 1024)) {
								$asSubset = true;
							} elseif ($usage < $this->mpdf->percentSubset) {
								$asSubset = true;
							}
						}
						if ($this->mpdf->PDFA || $this->mpdf->PDFX) {
							$asSubset = false;
						}
						$this->mpdf->fonts[$k]['asSubset'] = $asSubset;
						break;
					}
				}
				if ($used && !$asSubset) {
					// Font file embedding
					$this->writer->object();
					$this->mpdf->FontFiles[$fontkey]['n'] = $this->mpdf->n;
					$originalsize = $info['length1'];
					if ($this->mpdf->repackageTTF || $this->mpdf->fonts[$fontkey]['TTCfontID'] > 0 || $this->mpdf->fonts[$fontkey]['useOTL'] > 0) { // mPDF 5.7.1
						// First see if there is a cached compressed file
						if ($this->fontCache->has($fontkey . '.ps.z') && $this->fontCache->jsonHas($fontkey . '.ps.json')) {
							$font = $this->fontCache->load($fontkey . '.ps.z');
							$originalsize = $this->fontCache->jsonLoad($fontkey . '.ps.json');  // sets $originalsize (of repackaged font)
						} else {
							$ttf = new TTFontFile($this->fontCache, $this->fontDescriptor);
							$font = $ttf->repackageTTF($this->mpdf->FontFiles[$fontkey]['ttffile'], $this->mpdf->fonts[$fontkey]['TTCfontID'], $this->mpdf->debugfonts, $this->mpdf->fonts[$fontkey]['useOTL']); // mPDF 5.7.1

							$originalsize = strlen($font);
							$font = gzcompress($font);
							unset($ttf);

							$this->fontCache->binaryWrite($fontkey . '.ps.z', $font);
							$this->fontCache->jsonWrite($fontkey . '.ps.json', $originalsize);
						}
					} elseif ($this->fontCache->has($fontkey . '.z')) {
						$font = $this->fontCache->load($fontkey . '.z');
					} else {
						$font = file_get_contents($this->mpdf->FontFiles[$fontkey]['ttffile']);
						$font = gzcompress($font);
						$this->fontCache->binaryWrite($fontkey . '.z', $font);
					}

					$this->writer->write('<</Length ' . strlen($font));
					$this->writer->write('/Filter /FlateDecode');
					$this->writer->write('/Length1 ' . $originalsize);
					$this->writer->write('>>');
					$this->writer->stream($font);
					$this->writer->write('endobj');
				}
			}
		}

		foreach ($this->mpdf->fonts as $k => $font) {

			// Font objects
			$type = $font['type'];
			$name = $font['name'];

			if ($type === 'TTF' && (!isset($font['used']) || !$font['used'])) {
				continue;
			}

			// @log Writing fonts

			if (isset($font['asSubset'])) {
				$asSubset = $font['asSubset'];
			} else {
				$asSubset = '';
			}

			if ($type === 'Type0') {  // Adobe CJK Fonts

				$this->mpdf->fonts[$k]['n'] = $this->mpdf->n + 1;
				$this->writer->object();
				$this->writer->write('<</Type /Font');
				$this->writeType0($font);

			} elseif ($type === 'core') {

				// Standard font
				$this->mpdf->fonts[$k]['n'] = $this->mpdf->n + 1;

				if ($this->mpdf->PDFA || $this->mpdf->PDFX) {
					throw new \Mpdf\MpdfException('Core fonts are not allowed in PDF/A1-b or PDFX/1-a files (Times, Helvetica, Courier etc.)');
				}

				$this->writer->object();
				$this->writer->write('<</Type /Font');
				$this->writer->write('/BaseFont /' . $name);
				$this->writer->write('/Subtype /Type1');

				if ($name !== 'Symbol' && $name !== 'ZapfDingbats') {
					$this->writer->write('/Encoding /WinAnsiEncoding');
				}

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

			} elseif ($type === 'TTF' && ($font['sip'] || $font['smp'])) {

				// TrueType embedded SUBSETS for SIP (CJK extB containing Supplementary Ideographic Plane 2)
				// Or Unicode Plane 1 - Supplementary Multilingual Plane

				if (!$font['used']) {
					continue;
				}

				$ssfaid = 'AA';
				$ttf = new TTFontFile($this->fontCache, $this->fontDescriptor);
				$subsetCount = count($font['subsetfontids']);
				for ($sfid = 0; $sfid < $subsetCount; $sfid++) {
					$this->mpdf->fonts[$k]['n'][$sfid] = $this->mpdf->n + 1;  // NB an array for subset
					$subsetname = 'MPDF' . $ssfaid . '+' . $font['name'];
					$ssfaid++;

					/* For some strange reason a subset ($sfid > 0) containing less than 97 characters causes an error
					  so fill up the array */
					for ($j = count($font['subsets'][$sfid]); $j < 98; $j++) {
						$font['subsets'][$sfid][$j] = 0;
					}

					$subset = $font['subsets'][$sfid];
					unset($subset[0]);
					$ttfontstream = $ttf->makeSubsetSIP($font['ttffile'], $subset, $font['TTCfontID'], $this->mpdf->debugfonts, $font['useOTL']); // mPDF 5.7.1
					$ttfontsize = strlen($ttfontstream);
					$fontstream = gzcompress($ttfontstream);
					$widthstring = '';
					$toUnistring = '';

					foreach ($font['subsets'][$sfid] as $cp => $u) {
						$w = $this->mpdf->_getCharWidth($font['cw'], $u);
						if ($w !== false) {
							$widthstring .= $w . ' ';
						} else {
							$widthstring .= round($ttf->defaultWidth) . ' ';
						}
						if ($u > 65535) {
							$utf8 = chr(($u >> 18) + 240) . chr((($u >> 12) & 63) + 128) . chr((($u >> 6) & 63) + 128) . chr(($u & 63) + 128);
							$utf16 = mb_convert_encoding($utf8, 'UTF-16BE', 'UTF-8');
							$l1 = ord($utf16[0]);
							$h1 = ord($utf16[1]);
							$l2 = ord($utf16[2]);
							$h2 = ord($utf16[3]);
							$toUnistring .= sprintf("<%02s> <%02s%02s%02s%02s>\n", strtoupper(dechex($cp)), strtoupper(dechex($l1)), strtoupper(dechex($h1)), strtoupper(dechex($l2)), strtoupper(dechex($h2)));
						} else {
							$toUnistring .= sprintf("<%02s> <%04s>\n", strtoupper(dechex($cp)), strtoupper(dechex($u)));
						}
					}

					// Additional Type1 or TrueType font
					$this->writer->object();
					$this->writer->write('<</Type /Font');
					$this->writer->write('/BaseFont /' . $subsetname);
					$this->writer->write('/Subtype /TrueType');
					$this->writer->write('/FirstChar 0 /LastChar ' . (count($font['subsets'][$sfid]) - 1));
					$this->writer->write('/Widths ' . ($this->mpdf->n + 1) . ' 0 R');
					$this->writer->write('/FontDescriptor ' . ($this->mpdf->n + 2) . ' 0 R');
					$this->writer->write('/ToUnicode ' . ($this->mpdf->n + 3) . ' 0 R');
					$this->writer->write('>>');
					$this->writer->write('endobj');

					// Widths
					$this->writer->object();
					$this->writer->write('[' . $widthstring . ']');
					$this->writer->write('endobj');

					// Descriptor
					$this->writer->object();
					$s = '<</Type /FontDescriptor /FontName /' . $subsetname . "\n";
					foreach ($font['desc'] as $kd => $v) {
						if ($kd === 'Flags') {
							$v |= 4;
							$v &= ~32;
						} // SYMBOLIC font flag
						$s .= ' /' . $kd . ' ' . $v . "\n";
					}
					$s .= '/FontFile2 ' . ($this->mpdf->n + 2) . ' 0 R';
					$this->writer->write($s . '>>');
					$this->writer->write('endobj');

					// ToUnicode
					$this->writer->object();
					$toUni = "/CIDInit /ProcSet findresource begin\n";
					$toUni .= "12 dict begin\n";
					$toUni .= "begincmap\n";
					$toUni .= "/CIDSystemInfo\n";
					$toUni .= "<</Registry (Adobe)\n";
					$toUni .= "/Ordering (UCS)\n";
					$toUni .= "/Supplement 0\n";
					$toUni .= ">> def\n";
					$toUni .= "/CMapName /Adobe-Identity-UCS def\n";
					$toUni .= "/CMapType 2 def\n";
					$toUni .= "1 begincodespacerange\n";
					$toUni .= "<00> <FF>\n";
					// $toUni .= sprintf("<00> <%02s>\n", strtoupper(dechex(count($font['subsets'][$sfid])-1)));
					$toUni .= "endcodespacerange\n";
					$toUni .= count($font['subsets'][$sfid]) . " beginbfchar\n";
					$toUni .= $toUnistring;
					$toUni .= "endbfchar\n";
					$toUni .= "endcmap\n";
					$toUni .= "CMapName currentdict /CMap defineresource pop\n";
					$toUni .= "end\n";
					$toUni .= "end\n";
					$this->writer->write('<</Length ' . strlen($toUni) . '>>');
					$this->writer->stream($toUni);
					$this->writer->write('endobj');

					// Font file
					$this->writer->object();
					$this->writer->write('<</Length ' . strlen($fontstream));
					$this->writer->write('/Filter /FlateDecode');
					$this->writer->write('/Length1 ' . $ttfontsize);
					$this->writer->write('>>');
					$this->writer->stream($fontstream);
					$this->writer->write('endobj');
				} // foreach subset
				unset($ttf);

			} elseif ($type === 'TTF') {  // TrueType embedded SUBSETS or FULL

				$this->mpdf->fonts[$k]['n'] = $this->mpdf->n + 1;

				if ($asSubset) {
					$ssfaid = 'A';
					$ttf = new TTFontFile($this->fontCache, $this->fontDescriptor);
					$fontname = 'MPDFA' . $ssfaid . '+' . $font['name'];
					$subset = $font['subset'];
					unset($subset[0]);
					$ttfontstream = $ttf->makeSubset($font['ttffile'], $subset, $font['TTCfontID'], $this->mpdf->debugfonts, $font['useOTL']);
					$ttfontsize = strlen($ttfontstream);
					$fontstream = gzcompress($ttfontstream);
					$codeToGlyph = $ttf->codeToGlyph;
					unset($codeToGlyph[0]);
				} else {
					$fontname = $font['name'];
				}

				// Type0 Font
				// A composite font - a font composed of other fonts, organized hierarchically
				$this->writer->object();
				$this->writer->write('<</Type /Font');
				$this->writer->write('/Subtype /Type0');
				$this->writer->write('/BaseFont /' . $fontname . '');
				$this->writer->write('/Encoding /Identity-H');
				$this->writer->write('/DescendantFonts [' . ($this->mpdf->n + 1) . ' 0 R]');
				$this->writer->write('/ToUnicode ' . ($this->mpdf->n + 2) . ' 0 R');
				$this->writer->write('>>');
				$this->writer->write('endobj');

				// CIDFontType2
				// A CIDFont whose glyph descriptions are based on TrueType font technology
				$this->writer->object();
				$this->writer->write('<</Type /Font');
				$this->writer->write('/Subtype /CIDFontType2');
				$this->writer->write('/BaseFont /' . $fontname . '');
				$this->writer->write('/CIDSystemInfo ' . ($this->mpdf->n + 2) . ' 0 R');
				$this->writer->write('/FontDescriptor ' . ($this->mpdf->n + 3) . ' 0 R');

				if (isset($font['desc']['MissingWidth'])) {
					$this->writer->write('/DW ' . $font['desc']['MissingWidth'] . '');
				}

				if (!$asSubset && $this->fontCache->has($font['fontkey'] . '.cw')) {
					$w = $this->fontCache->load($font['fontkey'] . '.cw');
					$this->writer->write($w);
				} else {
					$this->writeTTFontWidths($font, $asSubset, ($asSubset ? $ttf->maxUni : 0));
				}

				$this->writer->write('/CIDToGIDMap ' . ($this->mpdf->n + 4) . ' 0 R');
				$this->writer->write('>>');
				$this->writer->write('endobj');

				// ToUnicode
				$this->writer->object();
				$toUni = "/CIDInit /ProcSet findresource begin\n";
				$toUni .= "12 dict begin\n";
				$toUni .= "begincmap\n";
				$toUni .= "/CIDSystemInfo\n";
				$toUni .= "<</Registry (Adobe)\n";
				$toUni .= "/Ordering (UCS)\n";
				$toUni .= "/Supplement 0\n";
				$toUni .= ">> def\n";
				$toUni .= "/CMapName /Adobe-Identity-UCS def\n";
				$toUni .= "/CMapType 2 def\n";
				$toUni .= "1 begincodespacerange\n";
				$toUni .= "<0000> <FFFF>\n";
				$toUni .= "endcodespacerange\n";
				$toUni .= "1 beginbfrange\n";
				$toUni .= "<0000> <FFFF> <0000>\n";
				$toUni .= "endbfrange\n";
				$toUni .= "endcmap\n";
				$toUni .= "CMapName currentdict /CMap defineresource pop\n";
				$toUni .= "end\n";
				$toUni .= "end\n";

				$this->writer->write('<</Length ' . strlen($toUni) . '>>');
				$this->writer->stream($toUni);
				$this->writer->write('endobj');

				// CIDSystemInfo dictionary
				$this->writer->object();
				$this->writer->write('<</Registry (Adobe)');
				$this->writer->write('/Ordering (UCS)');
				$this->writer->write('/Supplement 0');
				$this->writer->write('>>');
				$this->writer->write('endobj');

				// Font descriptor
				$this->writer->object();
				$this->writer->write('<</Type /FontDescriptor');
				$this->writer->write('/FontName /' . $fontname);

				foreach ($font['desc'] as $kd => $v) {
					if ($asSubset && $kd === 'Flags') {
						$v |= 4;
						$v &= ~32;
					} // SYMBOLIC font flag
					$this->writer->write(' /' . $kd . ' ' . $v);
				}

				if ($font['panose']) {
					$this->writer->write(' /Style << /Panose <' . $font['panose'] . '> >>');
				}

				if ($asSubset) {
					$this->writer->write('/FontFile2 ' . ($this->mpdf->n + 2) . ' 0 R');
				} elseif ($font['fontkey']) {
					// obj ID of a stream containing a TrueType font program
					$this->writer->write('/FontFile2 ' . $this->mpdf->FontFiles[$font['fontkey']]['n'] . ' 0 R');
				}

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

				// Embed CIDToGIDMap
				// A specification of the mapping from CIDs to glyph indices
				if ($asSubset) {
					$cidtogidmap = str_pad('', 256 * 256 * 2, "\x00");
					foreach ($codeToGlyph as $cc => $glyph) {
						$cidtogidmap[$cc * 2] = chr($glyph >> 8);
						$cidtogidmap[$cc * 2 + 1] = chr($glyph & 0xFF);
					}
					$cidtogidmap = gzcompress($cidtogidmap);
				} else {
					// First see if there is a cached CIDToGIDMapfile
					if ($this->fontCache->has($font['fontkey'] . '.cgm')) {
						$cidtogidmap = $this->fontCache->load($font['fontkey'] . '.cgm');
					} else {
						$ttf = new TTFontFile($this->fontCache, $this->fontDescriptor);
						$charToGlyph = $ttf->getCTG($font['ttffile'], $font['TTCfontID'], $this->mpdf->debugfonts, $font['useOTL']);
						$cidtogidmap = str_pad('', 256 * 256 * 2, "\x00");
						foreach ($charToGlyph as $cc => $glyph) {
							$cidtogidmap[$cc * 2] = chr($glyph >> 8);
							$cidtogidmap[$cc * 2 + 1] = chr($glyph & 0xFF);
						}
						unset($ttf);
						$cidtogidmap = gzcompress($cidtogidmap);
						$this->fontCache->binaryWrite($font['fontkey'] . '.cgm', $cidtogidmap);
					}
				}
				$this->writer->object();
				$this->writer->write('<</Length ' . strlen($cidtogidmap) . '');
				$this->writer->write('/Filter /FlateDecode');
				$this->writer->write('>>');
				$this->writer->stream($cidtogidmap);
				$this->writer->write('endobj');

				// Font file
				if ($asSubset) {
					$this->writer->object();
					$this->writer->write('<</Length ' . strlen($fontstream));
					$this->writer->write('/Filter /FlateDecode');
					$this->writer->write('/Length1 ' . $ttfontsize);
					$this->writer->write('>>');
					$this->writer->stream($fontstream);
					$this->writer->write('endobj');
					unset($ttf);
				}
			} else {
				throw new \Mpdf\MpdfException(sprintf('Unsupported font type: %s (%s)', $type, $name));
			}
		}
	}

	private function writeTTFontWidths(&$font, $asSubset, $maxUni) // _putTTfontwidths
	{
		$character = [
			'startcid' => 1,
			'rangeid' => 0,
			'prevcid' => -2,
			'prevwidth' => -1,
			'interval' => false,
			'range' => [],
		];

		$fontCacheFilename = $font['fontkey'] . '.cw127.json';
		if ($asSubset && $this->fontCache->jsonHas($fontCacheFilename)) {
			$character = $this->fontCache->jsonLoad($fontCacheFilename);
			$character['startcid'] = 128;
		}

		// for each character
		$cwlen = ($asSubset) ? $maxUni + 1 : (strlen($font['cw']) / 2);
		for ($cid = $character['startcid']; $cid < $cwlen; $cid++) {
			if ($cid == 128 && $asSubset && (!$this->fontCache->has($fontCacheFilename))) {
				$character = [
					'rangeid' => $character['rangeid'],
					'prevcid' => $character['prevcid'],
					'prevwidth' => $character['prevwidth'],
					'interval' => $character['interval'],
					'range' => $character['range'],
				];

				$this->fontCache->jsonWrite($fontCacheFilename, $character);
			}

			$character1 = isset($font['cw'][$cid * 2]) ? $font['cw'][$cid * 2] : '';
			$character2 = isset($font['cw'][$cid * 2 + 1]) ? $font['cw'][$cid * 2 + 1] : '';

			if ($character1 === "\00" && $character2 === "\00") {
				continue;
			}

			$width = (ord($character1) << 8) + ord($character2);

			if ($width === 65535) {
				$width = 0;
			}

			if ($asSubset && $cid > 255 && (!isset($font['subset'][$cid]) || !$font['subset'][$cid])) {
				continue;
			}

			if ($asSubset && $cid > 0xFFFF) {
				continue;
			} // mPDF 6

			if (!isset($font['dw']) || (isset($font['dw']) && $width != $font['dw'])) {
				if ($cid === ($character['prevcid'] + 1)) {
					// consecutive CID
					if ($width === $character['prevwidth']) {
						if (isset($character['range'][$character['rangeid']][0]) && $width === $character['range'][$character['rangeid']][0]) {
							$character['range'][$character['rangeid']][] = $width;
						} else {
							array_pop($character['range'][$character['rangeid']]);
							// new range
							$character['rangeid'] = $character['prevcid'];
							$character['range'][$character['rangeid']] = [];
							$character['range'][$character['rangeid']][] = $character['prevwidth'];
							$character['range'][$character['rangeid']][] = $width;
						}
						$character['interval'] = true;
						$character['range'][$character['rangeid']]['interval'] = true;
					} else {
						if ($character['interval']) {
							// new range
							$character['rangeid'] = $cid;
							$character['range'][$character['rangeid']] = [];
							$character['range'][$character['rangeid']][] = $width;
						} else {
							$character['range'][$character['rangeid']][] = $width;
						}
						$character['interval'] = false;
					}
				} else {
					// new range
					$character['rangeid'] = $cid;
					$character['range'][$character['rangeid']] = [];
					$character['range'][$character['rangeid']][] = $width;
					$character['interval'] = false;
				}
				$character['prevcid'] = $cid;
				$character['prevwidth'] = $width;
			}
		}
		$w = $this->writeFontRanges($character['range']);
		$this->writer->write($w);
		if (!$asSubset) {
			$this->fontCache->binaryWrite($font['fontkey'] . '.cw', $w);
		}
	}

	private function writeFontRanges(&$range) // _putfontranges
	{
		// optimize ranges
		$prevk = -1;
		$nextk = -1;
		$prevint = false;
		foreach ($range as $k => $ws) {
			$cws = count($ws);
			if (($k == $nextk) and ( !$prevint) and ( (!isset($ws['interval'])) or ( $cws < 4))) {
				if (isset($range[$k]['interval'])) {
					unset($range[$k]['interval']);
				}
				$range[$prevk] = array_merge($range[$prevk], $range[$k]);
				unset($range[$k]);
			} else {
				$prevk = $k;
			}
			$nextk = $k + $cws;
			if (isset($ws['interval'])) {
				if ($cws > 3) {
					$prevint = true;
				} else {
					$prevint = false;
				}
				unset($range[$k]['interval']);
				--$nextk;
			} else {
				$prevint = false;
			}
		}
		// output data
		$w = '';
		foreach ($range as $k => $ws) {
			if (count(array_count_values($ws)) === 1) {
				// interval mode is more compact
				$w .= ' ' . $k . ' ' . ($k + count($ws) - 1) . ' ' . $ws[0];
			} else {
				// range mode
				$w .= ' ' . $k . ' [ ' . implode(' ', $ws) . ' ]' . "\n";
			}
		}
		return '/W [' . $w . ' ]';
	}

	private function writeFontWidths(&$font, $cidoffset = 0) // _putfontwidths
	{
		ksort($font['cw']);
		unset($font['cw'][65535]);
		$rangeid = 0;
		$range = [];
		$prevcid = -2;
		$prevwidth = -1;
		$interval = false;
		// for each character
		foreach ($font['cw'] as $cid => $width) {
			$cid -= $cidoffset;
			if (!isset($font['dw']) || (isset($font['dw']) && $width != $font['dw'])) {
				if ($cid === ($prevcid + 1)) {
					// consecutive CID
					if ($width === $prevwidth) {
						if ($width === $range[$rangeid][0]) {
							$range[$rangeid][] = $width;
						} else {
							array_pop($range[$rangeid]);
							// new range
							$rangeid = $prevcid;
							$range[$rangeid] = [];
							$range[$rangeid][] = $prevwidth;
							$range[$rangeid][] = $width;
						}
						$interval = true;
						$range[$rangeid]['interval'] = true;
					} else {
						if ($interval) {
							// new range
							$rangeid = $cid;
							$range[$rangeid] = [];
							$range[$rangeid][] = $width;
						} else {
							$range[$rangeid][] = $width;
						}
						$interval = false;
					}
				} else {
					// new range
					$rangeid = $cid;
					$range[$rangeid] = [];
					$range[$rangeid][] = $width;
					$interval = false;
				}
				$prevcid = $cid;
				$prevwidth = $width;
			}
		}
		$this->writer->write($this->writeFontRanges($range));
	}

	// from class PDF_Chinese CJK EXTENSIONS
	public function writeType0(&$font) // _putType0
	{
		// Type0
		$this->writer->write('/Subtype /Type0');
		$this->writer->write('/BaseFont /' . $font['name'] . '-' . $font['CMap']);
		$this->writer->write('/Encoding /' . $font['CMap']);
		$this->writer->write('/DescendantFonts [' . ($this->mpdf->n + 1) . ' 0 R]');
		$this->writer->write('>>');
		$this->writer->write('endobj');
		// CIDFont
		$this->writer->object();
		$this->writer->write('<</Type /Font');
		$this->writer->write('/Subtype /CIDFontType0');
		$this->writer->write('/BaseFont /' . $font['name']);

		$cidinfo = '/Registry ' . $this->writer->string('Adobe');
		$cidinfo .= ' /Ordering ' . $this->writer->string($font['registry']['ordering']);
		$cidinfo .= ' /Supplement ' . $font['registry']['supplement'];
		$this->writer->write('/CIDSystemInfo <<' . $cidinfo . '>>');

		$this->writer->write('/FontDescriptor ' . ($this->mpdf->n + 1) . ' 0 R');
		if (isset($font['MissingWidth'])) {
			$this->writer->write('/DW ' . $font['MissingWidth'] . '');
		}
		$this->writeFontWidths($font, 31);
		$this->writer->write('>>');
		$this->writer->write('endobj');

		// Font descriptor
		$this->writer->object();
		$s = '<</Type /FontDescriptor /FontName /' . $font['name'];
		foreach ($font['desc'] as $k => $v) {
			if ($k !== 'Style') {
				$s .= ' /' . $k . ' ' . $v . '';
			}
		}
		$this->writer->write($s . '>>');
		$this->writer->write('endobj');
	}

}