TTFontFile Class Reference

Collaboration diagram for TTFontFile:

Public Member Functions
	__construct ()
	_set_short ($stream, $offset, $val)
	_set_ushort ($stream, $offset, $value)
	add ($tag, $data)
	calcChecksum ($data)
	endTTFile (&$stm)
	extractInfo ()
	get_chunk ($pos, $length)
	get_table ($tag)
	get_table_pos ($tag)
	get_ulong ($pos)
	get_ushort ($pos)
	getCMAP4 ($unicode_cmap_offset, &$glyphToChar, &$charToGlyph)
	getGlyphData ($originalGlyphIdx, &$maxdepth, &$depth, &$points, &$contours)
	getGlyphs ($originalGlyphIdx, &$start, &$glyphSet, &$subsetglyphs)
	getHMetric ($numberOfHMetrics, $gid)
	getHMTX ($numberOfHMetrics, $numGlyphs, &$glyphToChar, $scale)
	getLOCA ($indexToLocFormat, $numGlyphs)
	getMetrics ($file)
	makeSubset ($file, &$subset)
	pack_short ($val)
	read_short ()
	read_tag ()
	read_ulong ()
	read_ushort ()
	readTableDirectory ()
	seek ($pos)
	seek_table ($tag, $offset_in_table=0)
	skip ($delta)
	splice ($stream, $offset, $value)
	sub32 ($x, $y)
	unpack_short ($s)

Data Fields
	$_pos
	$ascent
	$bbox
	$capHeight
	$charToGlyph
	$charWidths
	$defaultWidth
	$descent
	$entrySelector
	$familyName
	$fh
	$filename
	$flags
	$fullName
	$glyphPos
	$hmetrics
	$italicAngle
	$maxStrLenRead
	$maxUni
	$name
	$numTables
	$otables
	$rangeShift
	$searchRange
	$stemV
	$styleName
	$tables
	$underlinePosition
	$underlineThickness
	$uniqueFontID
	$unitsPerEm

Detailed Description

Definition at line 38 of file ttfonts.php.

Constructor & Destructor Documentation

__construct()

TTFontFile::__construct

(

)

Definition at line 72 of file ttfonts.php.

                               {
                $this->maxStrLenRead = 200000;  // Maximum size of glyf table to read in as string (otherwise reads each glyph from file)
        }

Member Function Documentation

_set_short()

TTFontFile::_set_short	(		$stream,
			$offset,
			$val
	)

Definition at line 234 of file ttfonts.php.

                                                    {
                if ($val<0) { 
                        $val = abs($val);
                        $val = ~$val;
                        $val += 1;
                }
                $up = pack("n",$val); 
                return $this->splice($stream, $offset, $up);
        }

References $offset, $up, $val, and splice().

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_set_ushort()

TTFontFile::_set_ushort	(		$stream,
			$offset,
			$value
	)

Definition at line 229 of file ttfonts.php.

                                                       {
                $up = pack("n", $value);
                return $this->splice($stream, $offset, $up);
        }

References $offset, $up, $value, and splice().

Referenced by makeSubset().

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add()

TTFontFile::add	(		$tag,
			$data
	)

Definition at line 257 of file ttfonts.php.

                                  {
                if ($tag == 'head') {
                        $data = $this->splice($data, 8, "\0\0\0\0");
                }
                $this->otables[$tag] = $data;
        }

References $data, $tag, and splice().

Referenced by makeSubset().

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calcChecksum()

TTFontFile::calcChecksum

(

$data

)

Definition at line 132 of file ttfonts.php.

                                      {
                if (strlen($data) % 4) { $data .= str_repeat("\0",(4-(strlen($data) % 4))); }
                $hi=0x0000;
                $lo=0x0000;
                for($i=0;$i<strlen($data);$i+=4) {
                        $hi += (ord($data[$i])<<8) + ord($data[$i+1]);
                        $lo += (ord($data[$i+2])<<8) + ord($data[$i+3]);
                        $hi += $lo >> 16;
                        $lo = $lo & 0xFFFF;
                        $hi = $hi & 0xFFFF;
                }
                return array($hi, $lo);
        }

References $data, $hi, and $i.

Referenced by endTTFile().

endTTFile()

TTFontFile::endTTFile

(

&

$stm

)

Definition at line 1035 of file ttfonts.php.

                                  {
                $stm = '';
                $numTables = count($this->otables);
                $searchRange = 1;
                $entrySelector = 0;
                while ($searchRange * 2 <= $numTables) {
                        $searchRange = $searchRange * 2;
                        $entrySelector = $entrySelector + 1;
                }
                $searchRange = $searchRange * 16;
                $rangeShift = $numTables * 16 - $searchRange;
 
                // Header
                if (_TTF_MAC_HEADER) {
                        $stm .= (pack("Nnnnn", 0x74727565, $numTables, $searchRange, $entrySelector, $rangeShift));     // Mac
                }
                else {
                        $stm .= (pack("Nnnnn", 0x00010000 , $numTables, $searchRange, $entrySelector, $rangeShift));    // Windows
                }
 
                // Table directory
                $tables = $this->otables;
 
                ksort ($tables); 
                $offset = 12 + $numTables * 16;
                foreach ($tables AS $tag=>$data) {
                        if ($tag == 'head') { $head_start = $offset; }
                        $stm .= $tag;
                        $checksum = $this->calcChecksum($data);
                        $stm .= pack("nn", $checksum[0],$checksum[1]);
                        $stm .= pack("NN", $offset, strlen($data));
                        $paddedLength = (strlen($data)+3)&~3;
                        $offset = $offset + $paddedLength;
                }
 
                // Table data
                foreach ($tables AS $tag=>$data) {
                        $data .= "\0\0\0";
                        $stm .= substr($data,0,(strlen($data)&~3));
                }
 
                $checksum = $this->calcChecksum($stm);
                $checksum = $this->sub32(array(0xB1B0,0xAFBA), $checksum);
                $chk = pack("nn", $checksum[0],$checksum[1]);
                $stm = $this->splice($stm,($head_start + 8),$chk);
                return $stm ;
        }

References $chk, $data, $entrySelector, $numTables, $offset, $otables, $rangeShift, $searchRange, $tables, $tag, _TTF_MAC_HEADER, calcChecksum(), splice(), and sub32().

Referenced by makeSubset().

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extractInfo()

TTFontFile::extractInfo

(

)

Definition at line 271 of file ttfonts.php.

                               {
                ///////////////////////////////////
                // name - Naming table
                ///////////////////////////////////
                        $this->sFamilyClass = 0;
                        $this->sFamilySubClass = 0;
 
                        $name_offset = $this->seek_table("name");
                        $format = $this->read_ushort();
                        if ($format != 0)
                                die("Unknown name table format ".$format);
                        $numRecords = $this->read_ushort();
                        $string_data_offset = $name_offset + $this->read_ushort();
                        $names = array(1=>'',2=>'',3=>'',4=>'',6=>'');
                        $K = array_keys($names);
                        $nameCount = count($names);
                        for ($i=0;$i<$numRecords; $i++) {
                                $platformId = $this->read_ushort();
                                $encodingId = $this->read_ushort();
                                $languageId = $this->read_ushort();
                                $nameId = $this->read_ushort();
                                $length = $this->read_ushort();
                                $offset = $this->read_ushort();
                                if (!in_array($nameId,$K)) continue;
                                $N = '';
                                if ($platformId == 3 && $encodingId == 1 && $languageId == 0x409) { // Microsoft, Unicode, US English, PS Name
                                        $opos = $this->_pos;
                                        $this->seek($string_data_offset + $offset);
                                        if ($length % 2 != 0)
                                                die("PostScript name is UTF-16BE string of odd length");
                                        $length /= 2;
                                        $N = '';
                                        while ($length > 0) {
                                                $char = $this->read_ushort();
                                                $N .= (chr($char));
                                                $length -= 1;
                                        }
                                        $this->_pos = $opos;
                                        $this->seek($opos);
                                }
                                else if ($platformId == 1 && $encodingId == 0 && $languageId == 0) { // Macintosh, Roman, English, PS Name
                                        $opos = $this->_pos;
                                        $N = $this->get_chunk($string_data_offset + $offset, $length);
                                        $this->_pos = $opos;
                                        $this->seek($opos);
                                }
                                if ($N && $names[$nameId]=='') {
                                        $names[$nameId] = $N;
                                        $nameCount -= 1;
                                        if ($nameCount==0) break;
                                }
                        }
                        if ($names[6])
                                $psName = $names[6];
                        else if ($names[4])
                                $psName = preg_replace('/ /','-',$names[4]);
                        else if ($names[1])
                                $psName = preg_replace('/ /','-',$names[1]);
                        else
                                $psName = '';
                        if (!$psName)
                                die("Could not find PostScript font name");
                        $this->name = $psName;
                        if ($names[1]) { $this->familyName = $names[1]; } else { $this->familyName = $psName; }
                        if ($names[2]) { $this->styleName = $names[2]; } else { $this->styleName = 'Regular'; }
                        if ($names[4]) { $this->fullName = $names[4]; } else { $this->fullName = $psName; }
                        if ($names[3]) { $this->uniqueFontID = $names[3]; } else { $this->uniqueFontID = $psName; }
                        if ($names[6]) { $this->fullName = $names[6]; }
 
                ///////////////////////////////////
                // head - Font header table
                ///////////////////////////////////
                $this->seek_table("head");
                $this->skip(18); 
                $this->unitsPerEm = $unitsPerEm = $this->read_ushort();
                $scale = 1000 / $unitsPerEm;
                $this->skip(16);
                $xMin = $this->read_short();
                $yMin = $this->read_short();
                $xMax = $this->read_short();
                $yMax = $this->read_short();
                $this->bbox = array(($xMin*$scale), ($yMin*$scale), ($xMax*$scale), ($yMax*$scale));
                $this->skip(3*2);
                $indexToLocFormat = $this->read_ushort();
                $glyphDataFormat = $this->read_ushort();
                if ($glyphDataFormat != 0)
                        die('Unknown glyph data format '.$glyphDataFormat);
 
                ///////////////////////////////////
                // hhea metrics table
                ///////////////////////////////////
                // ttf2t1 seems to use this value rather than the one in OS/2 - so put in for compatibility
                if (isset($this->tables["hhea"])) {
                        $this->seek_table("hhea");
                        $this->skip(4);
                        $hheaAscender = $this->read_short();
                        $hheaDescender = $this->read_short();
                        $this->ascent = ($hheaAscender *$scale);
                        $this->descent = ($hheaDescender *$scale);
                }
 
                ///////////////////////////////////
                // OS/2 - OS/2 and Windows metrics table
                ///////////////////////////////////
                if (isset($this->tables["OS/2"])) {
                        $this->seek_table("OS/2");
                        $version = $this->read_ushort();
                        $this->skip(2);
                        $usWeightClass = $this->read_ushort();
                        $this->skip(2);
                        $fsType = $this->read_ushort();
                        if ($fsType == 0x0002 || ($fsType & 0x0300) != 0) {
                                die('ERROR - Font file '.$this->filename.' cannot be embedded due to copyright restrictions.');
                                $this->restrictedUse = true;
                        }
                        $this->skip(20);
                        $sF = $this->read_short();
                        $this->sFamilyClass = ($sF >> 8);
                        $this->sFamilySubClass = ($sF & 0xFF);
                        $this->_pos += 10;  //PANOSE = 10 byte length
                        $panose = fread($this->fh,10);
                        $this->skip(26);
                        $sTypoAscender = $this->read_short();
                        $sTypoDescender = $this->read_short();
                        if (!$this->ascent) $this->ascent = ($sTypoAscender*$scale);
                        if (!$this->descent) $this->descent = ($sTypoDescender*$scale);
                        if ($version > 1) {
                                $this->skip(16);
                                $sCapHeight = $this->read_short();
                                $this->capHeight = ($sCapHeight*$scale);
                        }
                        else {
                                $this->capHeight = $this->ascent;
                        }
                }
                else {
                        $usWeightClass = 500;
                        if (!$this->ascent) $this->ascent = ($yMax*$scale);
                        if (!$this->descent) $this->descent = ($yMin*$scale);
                        $this->capHeight = $this->ascent;
                }
                $this->stemV = 50 + intval(pow(($usWeightClass / 65.0),2));
 
                ///////////////////////////////////
                // post - PostScript table
                ///////////////////////////////////
                $this->seek_table("post");
                $this->skip(4); 
                $this->italicAngle = $this->read_short() + $this->read_ushort() / 65536.0;
                $this->underlinePosition = $this->read_short() * $scale;
                $this->underlineThickness = $this->read_short() * $scale;
                $isFixedPitch = $this->read_ulong();
 
                $this->flags = 4;
 
                if ($this->italicAngle!= 0) 
                        $this->flags = $this->flags | 64;
                if ($usWeightClass >= 600)
                        $this->flags = $this->flags | 262144;
                if ($isFixedPitch)
                        $this->flags = $this->flags | 1;
 
                ///////////////////////////////////
                // hhea - Horizontal header table
                ///////////////////////////////////
                $this->seek_table("hhea");
                $this->skip(32); 
                $metricDataFormat = $this->read_ushort();
                if ($metricDataFormat != 0)
                        die('Unknown horizontal metric data format '.$metricDataFormat);
                $numberOfHMetrics = $this->read_ushort();
                if ($numberOfHMetrics == 0) 
                        die('Number of horizontal metrics is 0');
 
                ///////////////////////////////////
                // maxp - Maximum profile table
                ///////////////////////////////////
                $this->seek_table("maxp");
                $this->skip(4); 
                $numGlyphs = $this->read_ushort();
 
 
                ///////////////////////////////////
                // cmap - Character to glyph index mapping table
                ///////////////////////////////////
                $cmap_offset = $this->seek_table("cmap");
                $this->skip(2);
                $cmapTableCount = $this->read_ushort();
                $unicode_cmap_offset = 0;
                for ($i=0;$i<$cmapTableCount;$i++) {
                        $platformID = $this->read_ushort();
                        $encodingID = $this->read_ushort();
                        $offset = $this->read_ulong();
                        $save_pos = $this->_pos;
                        if (($platformID == 3 && $encodingID == 1) || $platformID == 0) { // Microsoft, Unicode
                                $format = $this->get_ushort($cmap_offset + $offset);
                                if ($format == 4) {
                                        if (!$unicode_cmap_offset) $unicode_cmap_offset = $cmap_offset + $offset;
                                        break;
                                }
                        }
                        $this->seek($save_pos );
                }
                if (!$unicode_cmap_offset)
                        die('Font ('.$this->filename .') does not have cmap for Unicode (platform 3, encoding 1, format 4, or platform 0, any encoding, format 4)');
 
 
                $glyphToChar = array();
                $charToGlyph = array();
                $this->getCMAP4($unicode_cmap_offset, $glyphToChar, $charToGlyph );
 
                ///////////////////////////////////
                // hmtx - Horizontal metrics table
                ///////////////////////////////////
                $this->getHMTX($numberOfHMetrics, $numGlyphs, $glyphToChar, $scale);
 
        }

References $_pos, $ascent, $charToGlyph, $i, $offset, $unitsPerEm, $version, get_chunk(), get_ushort(), getCMAP4(), getHMTX(), name, read_short(), read_ulong(), read_ushort(), seek(), seek_table(), and skip().

Referenced by getMetrics().

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get_chunk()

TTFontFile::get_chunk	(		$pos,
			$length
	)

Definition at line 244 of file ttfonts.php.

                                          {
                fseek($this->fh,$pos);
                if ($length <1) { return ''; }
                return (fread($this->fh,$length));
        }

References $pos.

Referenced by extractInfo(), getHMTX(), getLOCA(), and makeSubset().

get_table()

TTFontFile::get_table

(

$tag

)

Definition at line 250 of file ttfonts.php.

                                 {
                list($pos, $length) = $this->get_table_pos($tag);
                if ($length == 0) { die('Truetype font ('.$this->filename.'): error reading table: '.$tag); }
                fseek($this->fh,$pos);
                return (fread($this->fh,$length));
        }

References $pos, $tag, and get_table_pos().

Referenced by makeSubset().

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get_table_pos()

TTFontFile::get_table_pos

(

$tag

)

Definition at line 146 of file ttfonts.php.

                                     {
                $offset = $this->tables[$tag]['offset'];
                $length = $this->tables[$tag]['length'];
                return array($offset, $length);
        }

References $offset, and $tag.

Referenced by get_table(), makeSubset(), and seek_table().

get_ulong()

TTFontFile::get_ulong

(

$pos

)

Definition at line 209 of file ttfonts.php.

                                 {
                fseek($this->fh,$pos);
                $s = fread($this->fh,4);
                // iF large uInt32 as an integer, PHP converts it to -ve
                return (ord($s[0])*16777216) + (ord($s[1])<<16) + (ord($s[2])<<8) + ord($s[3]); //      16777216  = 1<<24
        }

References $pos, and $s.

get_ushort()

TTFontFile::get_ushort

(

$pos

)

Definition at line 203 of file ttfonts.php.

                                  {
                fseek($this->fh,$pos);
                $s = fread($this->fh,2);
                return (ord($s[0])<<8) + ord($s[1]);
        }

References $pos, and $s.

Referenced by extractInfo(), getCMAP4(), and makeSubset().

getCMAP4()

TTFontFile::getCMAP4	(		$unicode_cmap_offset,
		&	$glyphToChar,
		&	$charToGlyph
	)

Definition at line 990 of file ttfonts.php.

                                                                               {
                $this->maxUniChar = 0;
                $this->seek($unicode_cmap_offset + 2);
                $length = $this->read_ushort();
                $limit = $unicode_cmap_offset + $length;
                $this->skip(2);
 
                $segCount = $this->read_ushort() / 2;
                $this->skip(6);
                $endCount = array();
                for($i=0; $i<$segCount; $i++) { $endCount[] = $this->read_ushort(); }
                $this->skip(2);
                $startCount = array();
                for($i=0; $i<$segCount; $i++) { $startCount[] = $this->read_ushort(); }
                $idDelta = array();
                for($i=0; $i<$segCount; $i++) { $idDelta[] = $this->read_short(); }             // ???? was unsigned short
                $idRangeOffset_start = $this->_pos;
                $idRangeOffset = array();
                for($i=0; $i<$segCount; $i++) { $idRangeOffset[] = $this->read_ushort(); }
 
                for ($n=0;$n<$segCount;$n++) {
                        $endpoint = ($endCount[$n] + 1);
                        for ($unichar=$startCount[$n];$unichar<$endpoint;$unichar++) {
                                if ($idRangeOffset[$n] == 0)
                                        $glyph = ($unichar + $idDelta[$n]) & 0xFFFF;
                                else {
                                        $offset = ($unichar - $startCount[$n]) * 2 + $idRangeOffset[$n];
                                        $offset = $idRangeOffset_start + 2 * $n + $offset;
                                        if ($offset >= $limit)
                                                $glyph = 0;
                                        else {
                                                $glyph = $this->get_ushort($offset);
                                                if ($glyph != 0)
                                                   $glyph = ($glyph + $idDelta[$n]) & 0xFFFF;
                                        }
                                }
                                $charToGlyph[$unichar] = $glyph;
                                if ($unichar < 196608) { $this->maxUniChar = max($unichar,$this->maxUniChar); }
                                $glyphToChar[$glyph][] = $unichar;
                        }
                }
        }

References $_pos, $charToGlyph, $i, $limit, $offset, get_ushort(), read_short(), read_ushort(), seek(), and skip().

Referenced by extractInfo(), and makeSubset().

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getGlyphData()

TTFontFile::getGlyphData	(		$originalGlyphIdx,
		&	$maxdepth,
		&	$depth,
		&	$points,
		&	$contours
	)

Definition at line 832 of file ttfonts.php.

                                                                                            {
                $depth++;
                $maxdepth = max($maxdepth, $depth);
                if (count($this->glyphdata[$originalGlyphIdx]['compGlyphs'])) {
                        foreach($this->glyphdata[$originalGlyphIdx]['compGlyphs'] AS $glyphIdx) {
                                $this->getGlyphData($glyphIdx, $maxdepth, $depth, $points, $contours);
                        }
                }
                else if (($this->glyphdata[$originalGlyphIdx]['nContours'] > 0) && $depth > 0) {        // simple
                        $contours += $this->glyphdata[$originalGlyphIdx]['nContours'];
                        $points += $this->glyphdata[$originalGlyphIdx]['nPoints'];
                }
                $depth--;
        }

References getGlyphData().

Referenced by getGlyphData().

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getGlyphs()

TTFontFile::getGlyphs	(		$originalGlyphIdx,
		&	$start,
		&	$glyphSet,
		&	$subsetglyphs
	)

Definition at line 850 of file ttfonts.php.

                                                                                   {
                $glyphPos = $this->glyphPos[$originalGlyphIdx];
                $glyphLen = $this->glyphPos[$originalGlyphIdx + 1] - $glyphPos;
                if (!$glyphLen) { 
                        return;
                }
                $this->seek($start + $glyphPos);
                $numberOfContours = $this->read_short();
                if ($numberOfContours < 0) {
                        $this->skip(8);
                        $flags = GF_MORE;
                        while ($flags & GF_MORE) {
                                $flags = $this->read_ushort();
                                $glyphIdx = $this->read_ushort();
                                if (!isset($glyphSet[$glyphIdx])) {
                                        $glyphSet[$glyphIdx] = count($subsetglyphs);    // old glyphID to new glyphID
                                        $subsetglyphs[$glyphIdx] = true;
                                }
                                $savepos = ftell($this->fh);
                                $this->getGlyphs($glyphIdx, $start, $glyphSet, $subsetglyphs);
                                $this->seek($savepos);
                                if ($flags & GF_WORDS)
                                        $this->skip(4);
                                else
                                        $this->skip(2);
                                if ($flags & GF_SCALE)
                                        $this->skip(2);
                                else if ($flags & GF_XYSCALE)
                                        $this->skip(4);
                                else if ($flags & GF_TWOBYTWO)
                                        $this->skip(8);
                        }
                }
        }

References $flags, $glyphPos, $start, getGlyphs(), GF_MORE, GF_SCALE, GF_TWOBYTWO, GF_WORDS, GF_XYSCALE, read_short(), read_ushort(), seek(), and skip().

Referenced by getGlyphs(), and makeSubset().

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getHMetric()

TTFontFile::getHMetric	(		$numberOfHMetrics,
			$gid
	)

Definition at line 952 of file ttfonts.php.

                                                     {
                $start = $this->seek_table("hmtx");
                if ($gid < $numberOfHMetrics) {
                        $this->seek($start+($gid*4));
                        $hm = fread($this->fh,4);
                }
                else {
                        $this->seek($start+(($numberOfHMetrics-1)*4));
                        $hm = fread($this->fh,2);
                        $this->seek($start+($numberOfHMetrics*2)+($gid*2));
                        $hm .= fread($this->fh,2);
                }
                return $hm;
        }

References $start, seek(), and seek_table().

Referenced by makeSubset().

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getHMTX()

TTFontFile::getHMTX	(		$numberOfHMetrics,
			$numGlyphs,
		&	$glyphToChar,
			$scale
	)

Definition at line 887 of file ttfonts.php.

                                                                               {
                $start = $this->seek_table("hmtx");
                $aw = 0;
                $this->charWidths = str_pad('', 256*256*2, "\x00");
                $nCharWidths = 0;
                if (($numberOfHMetrics*4) < $this->maxStrLenRead) {
                        $data = $this->get_chunk($start,($numberOfHMetrics*4));
                        $arr = unpack("n*", $data);
                }
                else { $this->seek($start); }
                for( $glyph=0; $glyph<$numberOfHMetrics; $glyph++) {
 
                        if (($numberOfHMetrics*4) < $this->maxStrLenRead) {
                                $aw = $arr[($glyph*2)+1];
                        }
                        else {
                                $aw = $this->read_ushort();
                                $lsb = $this->read_ushort();
                        }
                        if (isset($glyphToChar[$glyph]) || $glyph == 0) {
 
                                if ($aw >= (1 << 15) ) { $aw = 0; }     // 1.03 Some (arabic) fonts have -ve values for width
                                        // although should be unsigned value - comes out as e.g. 65108 (intended -50)
                                if ($glyph == 0) {
                                        $this->defaultWidth = $scale*$aw;
                                        continue;
                                }
                                foreach($glyphToChar[$glyph] AS $char) {
                                        if ($char != 0 && $char != 65535) {
                                                $w = intval(round($scale*$aw));
                                                if ($w == 0) { $w = 65535; }
                                                if ($char < 196608) {
                                                        $this->charWidths[$char*2] = chr($w >> 8);
                                                        $this->charWidths[$char*2 + 1] = chr($w & 0xFF);
                                                        $nCharWidths++;
                                                }
                                        }
                                }
                        }
                }
                $data = $this->get_chunk(($start+$numberOfHMetrics*4),($numGlyphs*2));
                $arr = unpack("n*", $data);
                $diff = $numGlyphs-$numberOfHMetrics;
                for( $pos=0; $pos<$diff; $pos++) {
                        $glyph = $pos + $numberOfHMetrics;
                        if (isset($glyphToChar[$glyph])) {
                                foreach($glyphToChar[$glyph] AS $char) {
                                        if ($char != 0 && $char != 65535) {
                                                $w = intval(round($scale*$aw));
                                                if ($w == 0) { $w = 65535; }
                                                if ($char < 196608) {
                                                        $this->charWidths[$char*2] = chr($w >> 8);
                                                        $this->charWidths[$char*2 + 1] = chr($w & 0xFF);
                                                        $nCharWidths++;
                                                }
                                        }
                                }
                        }
                }
                // NB 65535 is a set width of 0
                // First bytes define number of chars in font
                $this->charWidths[0] = chr($nCharWidths >> 8);
                $this->charWidths[1] = chr($nCharWidths & 0xFF);
        }

References $data, $diff, $pos, $start, $w, get_chunk(), read_ushort(), seek(), and seek_table().

Referenced by extractInfo(), and makeSubset().

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getLOCA()

TTFontFile::getLOCA	(		$indexToLocFormat,
			$numGlyphs
	)

Definition at line 967 of file ttfonts.php.

                                                        {
                $start = $this->seek_table('loca');
                $this->glyphPos = array();
                if ($indexToLocFormat == 0) {
                        $data = $this->get_chunk($start,($numGlyphs*2)+2);
                        $arr = unpack("n*", $data);
                        for ($n=0; $n<=$numGlyphs; $n++) {
                                $this->glyphPos[] = ($arr[$n+1] * 2);
                        }
                }
                else if ($indexToLocFormat == 1) {
                        $data = $this->get_chunk($start,($numGlyphs*4)+4);
                        $arr = unpack("N*", $data);
                        for ($n=0; $n<=$numGlyphs; $n++) {
                                $this->glyphPos[] = ($arr[$n+1]);
                        }
                }
                else 
                        die('Unknown location table format '.$indexToLocFormat);
        }

References $data, $start, get_chunk(), and seek_table().

Referenced by makeSubset().

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getMetrics()

TTFontFile::getMetrics

(

$file

)

Definition at line 77 of file ttfonts.php.

                                   {
                $this->filename = $file;
                $this->fh = fopen($file,'rb') or die('Can\'t open file ' . $file);
                $this->_pos = 0;
                $this->charWidths = '';
                $this->glyphPos = array();
                $this->charToGlyph = array();
                $this->tables = array();
                $this->otables = array();
                $this->ascent = 0;
                $this->descent = 0;
                $this->TTCFonts = array();
                $this->version = $version = $this->read_ulong();
                if ($version==0x4F54544F) 
                        die("Postscript outlines are not supported");
                if ($version==0x74746366) 
                        die("ERROR - TrueType Fonts Collections not supported");
                if (!in_array($version, array(0x00010000,0x74727565)))
                        die("Not a TrueType font: version=".$version);
                $this->readTableDirectory();
                $this->extractInfo();
                fclose($this->fh);
        }

References $file, $version, extractInfo(), read_ulong(), and readTableDirectory().

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makeSubset()

TTFontFile::makeSubset	(		$file,
		&	$subset
	)

Definition at line 494 of file ttfonts.php.

                                             {
                $this->filename = $file;
                $this->fh = fopen($file ,'rb') or die('Can\'t open file ' . $file);
                $this->_pos = 0;
                $this->charWidths = '';
                $this->glyphPos = array();
                $this->charToGlyph = array();
                $this->tables = array();
                $this->otables = array();
                $this->ascent = 0;
                $this->descent = 0;
                $this->skip(4);
                $this->maxUni = 0;
                $this->readTableDirectory();
 
 
                ///////////////////////////////////
                // head - Font header table
                ///////////////////////////////////
                $this->seek_table("head");
                $this->skip(50); 
                $indexToLocFormat = $this->read_ushort();
                $glyphDataFormat = $this->read_ushort();
 
                ///////////////////////////////////
                // hhea - Horizontal header table
                ///////////////////////////////////
                $this->seek_table("hhea");
                $this->skip(32); 
                $metricDataFormat = $this->read_ushort();
                $orignHmetrics = $numberOfHMetrics = $this->read_ushort();
 
                ///////////////////////////////////
                // maxp - Maximum profile table
                ///////////////////////////////////
                $this->seek_table("maxp");
                $this->skip(4);
                $numGlyphs = $this->read_ushort();
 
 
                ///////////////////////////////////
                // cmap - Character to glyph index mapping table
                ///////////////////////////////////
                $cmap_offset = $this->seek_table("cmap");
                $this->skip(2);
                $cmapTableCount = $this->read_ushort();
                $unicode_cmap_offset = 0;
                for ($i=0;$i<$cmapTableCount;$i++) {
                        $platformID = $this->read_ushort();
                        $encodingID = $this->read_ushort();
                        $offset = $this->read_ulong();
                        $save_pos = $this->_pos;
                        if (($platformID == 3 && $encodingID == 1) || $platformID == 0) { // Microsoft, Unicode
                                $format = $this->get_ushort($cmap_offset + $offset);
                                if ($format == 4) {
                                        $unicode_cmap_offset = $cmap_offset + $offset;
                                        break;
                                }
                        }
                        $this->seek($save_pos );
                }
 
                if (!$unicode_cmap_offset)
                        die('Font ('.$this->filename .') does not have cmap for Unicode (platform 3, encoding 1, format 4, or platform 0, any encoding, format 4)');
 
 
                $glyphToChar = array();
                $charToGlyph = array();
                $this->getCMAP4($unicode_cmap_offset, $glyphToChar, $charToGlyph );
 
                $this->charToGlyph = $charToGlyph;
 
                ///////////////////////////////////
                // hmtx - Horizontal metrics table
                ///////////////////////////////////
                $scale = 1;     // not used
                $this->getHMTX($numberOfHMetrics, $numGlyphs, $glyphToChar, $scale);
 
                ///////////////////////////////////
                // loca - Index to location
                ///////////////////////////////////
                $this->getLOCA($indexToLocFormat, $numGlyphs);
 
                $subsetglyphs = array(0=>0); 
                $subsetCharToGlyph = array();
                foreach($subset AS $code) {
                        if (isset($this->charToGlyph[$code])) {
                                $subsetglyphs[$this->charToGlyph[$code]] = $code;       // Old Glyph ID => Unicode
                                $subsetCharToGlyph[$code] = $this->charToGlyph[$code];  // Unicode to old GlyphID
 
                        }
                        $this->maxUni = max($this->maxUni, $code);
                }
 
                list($start,$dummy) = $this->get_table_pos('glyf');
 
                $glyphSet = array();
                ksort($subsetglyphs);
                $n = 0;
                $fsLastCharIndex = 0;   // maximum Unicode index (character code) in this font, according to the cmap subtable for platform ID 3 and platform- specific encoding ID 0 or 1.
                foreach($subsetglyphs AS $originalGlyphIdx => $uni) {
                        $fsLastCharIndex = max($fsLastCharIndex , $uni);
                        $glyphSet[$originalGlyphIdx] = $n;      // old glyphID to new glyphID
                        $n++;
                }
 
                ksort($subsetCharToGlyph);
                foreach($subsetCharToGlyph AS $uni => $originalGlyphIdx) {
                        $codeToGlyph[$uni] = $glyphSet[$originalGlyphIdx] ;
                }
                $this->codeToGlyph = $codeToGlyph;
 
                ksort($subsetglyphs);
                foreach($subsetglyphs AS $originalGlyphIdx => $uni) {
                        $this->getGlyphs($originalGlyphIdx, $start, $glyphSet, $subsetglyphs);
                }
 
                $numGlyphs = $numberOfHMetrics = count($subsetglyphs );
 
                //tables copied from the original
                $tags = array ('name');
                foreach($tags AS $tag) { $this->add($tag, $this->get_table($tag)); }
                $tags = array ('cvt ', 'fpgm', 'prep', 'gasp');
                foreach($tags AS $tag) {
                        if (isset($this->tables[$tag])) { $this->add($tag, $this->get_table($tag)); }
                }
 
                // post - PostScript
                $opost = $this->get_table('post');
                $post = "\x00\x03\x00\x00" . substr($opost,4,12) . "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
                $this->add('post', $post);
 
                // Sort CID2GID map into segments of contiguous codes
                ksort($codeToGlyph);
                unset($codeToGlyph[0]);
                //unset($codeToGlyph[65535]);
                $rangeid = 0;
                $range = array();
                $prevcid = -2;
                $prevglidx = -1;
                // for each character
                foreach ($codeToGlyph as $cid => $glidx) {
                        if ($cid == ($prevcid + 1) && $glidx == ($prevglidx + 1)) {
                                $range[$rangeid][] = $glidx;
                        } else {
                                // new range
                                $rangeid = $cid;
                                $range[$rangeid] = array();
                                $range[$rangeid][] = $glidx;
                        }
                        $prevcid = $cid;
                        $prevglidx = $glidx;
                }
 
                // cmap - Character to glyph mapping - Format 4 (MS / )
                $segCount = count($range) + 1;  // + 1 Last segment has missing character 0xFFFF
                $searchRange = 1;
                $entrySelector = 0;
                while ($searchRange * 2 <= $segCount ) {
                        $searchRange = $searchRange * 2;
                        $entrySelector = $entrySelector + 1;
                }
                $searchRange = $searchRange * 2;
                $rangeShift = $segCount * 2 - $searchRange;
                $length = 16 + (8*$segCount ) + ($numGlyphs+1);
                $cmap = array(0, 1,             // Index : version, number of encoding subtables
                        3, 1,                           // Encoding Subtable : platform (MS=3), encoding (Unicode)
                        0, 12,                  // Encoding Subtable : offset (hi,lo)
                        4, $length, 0,          // Format 4 Mapping subtable: format, length, language
                        $segCount*2,
                        $searchRange,
                        $entrySelector,
                        $rangeShift);
 
                // endCode(s)
                foreach($range AS $start=>$subrange) {
                        $endCode = $start + (count($subrange)-1);
                        $cmap[] = $endCode;     // endCode(s)
                }
                $cmap[] =       0xFFFF; // endCode of last Segment
                $cmap[] =       0;      // reservedPad
 
                // startCode(s)
                foreach($range AS $start=>$subrange) {
                        $cmap[] = $start;       // startCode(s)
                }
                $cmap[] =       0xFFFF; // startCode of last Segment
                // idDelta(s) 
                foreach($range AS $start=>$subrange) {
                        $idDelta = -($start-$subrange[0]);
                        $n += count($subrange);
                        $cmap[] = $idDelta;     // idDelta(s)
                }
                $cmap[] =       1;      // idDelta of last Segment
                // idRangeOffset(s) 
                foreach($range AS $subrange) {
                        $cmap[] = 0;    // idRangeOffset[segCount]      Offset in bytes to glyph indexArray, or 0
 
                }
                $cmap[] =       0;      // idRangeOffset of last Segment
                foreach($range AS $subrange) {
                        foreach($subrange AS $glidx) {
                                $cmap[] = $glidx;
                        }
                }
                $cmap[] = 0;    // Mapping for last character
                $cmapstr = '';
                foreach($cmap AS $cm) { $cmapstr .= pack("n",$cm); }
                $this->add('cmap', $cmapstr);
 
 
                // glyf - Glyph data
                list($glyfOffset,$glyfLength) = $this->get_table_pos('glyf');
                if ($glyfLength < $this->maxStrLenRead) {
                        $glyphData = $this->get_table('glyf');
                }
 
                $offsets = array();
                $glyf = '';
                $pos = 0;
 
                $hmtxstr = '';
                $xMinT = 0;
                $yMinT = 0;
                $xMaxT = 0;
                $yMaxT = 0;
                $advanceWidthMax = 0;
                $minLeftSideBearing = 0;
                $minRightSideBearing = 0;
                $xMaxExtent = 0;
                $maxPoints = 0;                 // points in non-compound glyph
                $maxContours = 0;                       // contours in non-compound glyph
                $maxComponentPoints = 0;        // points in compound glyph
                $maxComponentContours = 0;      // contours in compound glyph
                $maxComponentElements = 0;      // number of glyphs referenced at top level
                $maxComponentDepth = 0;         // levels of recursion, set to 0 if font has only simple glyphs
                $this->glyphdata = array();
 
                foreach($subsetglyphs AS $originalGlyphIdx => $uni) {
                        // hmtx - Horizontal Metrics
                        $hm = $this->getHMetric($orignHmetrics, $originalGlyphIdx);     
                        $hmtxstr .= $hm;
 
                        $offsets[] = $pos;
                        $glyphPos = $this->glyphPos[$originalGlyphIdx];
                        $glyphLen = $this->glyphPos[$originalGlyphIdx + 1] - $glyphPos;
                        if ($glyfLength < $this->maxStrLenRead) {
                                $data = substr($glyphData,$glyphPos,$glyphLen);
                        }
                        else {
                                if ($glyphLen > 0) $data = $this->get_chunk($glyfOffset+$glyphPos,$glyphLen);
                                else $data = '';
                        }
 
                        if ($glyphLen > 0) {
                                $up = unpack("n", substr($data,0,2));
                        }
 
                        if ($glyphLen > 2 && ($up[1] & (1 << 15)) ) {   // If number of contours <= -1 i.e. composiste glyph
                                $pos_in_glyph = 10;
                                $flags = GF_MORE;
                                $nComponentElements = 0;
                                while ($flags & GF_MORE) {
                                        $nComponentElements += 1;       // number of glyphs referenced at top level
                                        $up = unpack("n", substr($data,$pos_in_glyph,2));
                                        $flags = $up[1];
                                        $up = unpack("n", substr($data,$pos_in_glyph+2,2));
                                        $glyphIdx = $up[1];
                                        $this->glyphdata[$originalGlyphIdx]['compGlyphs'][] = $glyphIdx;
                                        $data = $this->_set_ushort($data, $pos_in_glyph + 2, $glyphSet[$glyphIdx]);
                                        $pos_in_glyph += 4;
                                        if ($flags & GF_WORDS) { $pos_in_glyph += 4; }
                                        else { $pos_in_glyph += 2; }
                                        if ($flags & GF_SCALE) { $pos_in_glyph += 2; }
                                        else if ($flags & GF_XYSCALE) { $pos_in_glyph += 4; }
                                        else if ($flags & GF_TWOBYTWO) { $pos_in_glyph += 8; }
                                }
                                $maxComponentElements = max($maxComponentElements, $nComponentElements);
                        }
 
                        $glyf .= $data;
                        $pos += $glyphLen;
                        if ($pos % 4 != 0) {
                                $padding = 4 - ($pos % 4);
                                $glyf .= str_repeat("\0",$padding);
                                $pos += $padding;
                        }
                }
 
                $offsets[] = $pos;
                $this->add('glyf', $glyf);
 
                // hmtx - Horizontal Metrics
                $this->add('hmtx', $hmtxstr);
 
                // loca - Index to location
                $locastr = '';
                if ((($pos + 1) >> 1) > 0xFFFF) {
                        $indexToLocFormat = 1;        // long format
                        foreach($offsets AS $offset) { $locastr .= pack("N",$offset); }
                }
                else {
                        $indexToLocFormat = 0;        // short format
                        foreach($offsets AS $offset) { $locastr .= pack("n",($offset/2)); }
                }
                $this->add('loca', $locastr);
 
                // head - Font header
                $head = $this->get_table('head');
                $head = $this->_set_ushort($head, 50, $indexToLocFormat);
                $this->add('head', $head);
 
 
                // hhea - Horizontal Header
                $hhea = $this->get_table('hhea');
                $hhea = $this->_set_ushort($hhea, 34, $numberOfHMetrics);
                $this->add('hhea', $hhea);
 
                // maxp - Maximum Profile
                $maxp = $this->get_table('maxp');
                $maxp = $this->_set_ushort($maxp, 4, $numGlyphs);
                $this->add('maxp', $maxp);
 
 
                // OS/2 - OS/2
                $os2 = $this->get_table('OS/2');
                $this->add('OS/2', $os2 );
 
                fclose($this->fh);
 
                // Put the TTF file together
                $stm = '';
                $this->endTTFile($stm);
                return $stm ;
        }

References $_pos, $charToGlyph, $code, $data, $entrySelector, $file, $flags, $glyphPos, $i, $offset, $pos, $prevcid, $range, $rangeid, $rangeShift, $searchRange, $start, $tag, $up, _set_ushort(), add(), endTTFile(), get_chunk(), get_table(), get_table_pos(), get_ushort(), getCMAP4(), getGlyphs(), getHMetric(), getHMTX(), getLOCA(), GF_MORE, GF_SCALE, GF_TWOBYTWO, GF_WORDS, GF_XYSCALE, read_ulong(), read_ushort(), readTableDirectory(), seek(), seek_table(), and skip().

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pack_short()

TTFontFile::pack_short

(

$val

)

Definition at line 216 of file ttfonts.php.

                                  {
                if ($val<0) { 
                        $val = abs($val);
                        $val = ~$val;
                        $val += 1;
                }
                return pack("n",$val); 
        }

References $val.

read_short()

TTFontFile::read_short

(

)

Definition at line 174 of file ttfonts.php.

                              {
                $this->_pos += 2;
                $s = fread($this->fh,2);
                $a = (ord($s[0])<<8) + ord($s[1]);
                if ($a & (1 << 15) ) { $a = ($a - (1 << 16)) ; }
                return $a;
        }

References $a, and $s.

Referenced by extractInfo(), getCMAP4(), and getGlyphs().

read_tag()

TTFontFile::read_tag

(

)

Definition at line 169 of file ttfonts.php.

                            {
                $this->_pos += 4;
                return fread($this->fh,4);
        }

Referenced by readTableDirectory().

read_ulong()

TTFontFile::read_ulong

(

)

Definition at line 196 of file ttfonts.php.

                              {
                $this->_pos += 4;
                $s = fread($this->fh,4);
                // if large uInt32 as an integer, PHP converts it to -ve
                return (ord($s[0])*16777216) + (ord($s[1])<<16) + (ord($s[2])<<8) + ord($s[3]); //      16777216  = 1<<24
        }

References $s.

Referenced by extractInfo(), getMetrics(), makeSubset(), and readTableDirectory().

read_ushort()

TTFontFile::read_ushort

(

)

Definition at line 190 of file ttfonts.php.

                               {
                $this->_pos += 2;
                $s = fread($this->fh,2);
                return (ord($s[0])<<8) + ord($s[1]);
        }

References $s.

Referenced by extractInfo(), getCMAP4(), getGlyphs(), getHMTX(), makeSubset(), and readTableDirectory().

readTableDirectory()

TTFontFile::readTableDirectory

(

)

Definition at line 102 of file ttfonts.php.

                                      {
            $this->numTables = $this->read_ushort();
            $this->searchRange = $this->read_ushort();
            $this->entrySelector = $this->read_ushort();
            $this->rangeShift = $this->read_ushort();
            $this->tables = array();    
            for ($i=0;$i<$this->numTables;$i++) {
                $record = array();
                $record['tag'] = $this->read_tag();
                $record['checksum'] = array($this->read_ushort(),$this->read_ushort());
                $record['offset'] = $this->read_ulong();
                $record['length'] = $this->read_ulong();
                $this->tables[$record['tag']] = $record;
                }
        }

References $i, $numTables, read_tag(), read_ulong(), and read_ushort().

Referenced by getMetrics(), and makeSubset().

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seek()

TTFontFile::seek

(

$pos

)

Definition at line 152 of file ttfonts.php.

                            {
                $this->_pos = $pos;
                fseek($this->fh,$this->_pos);
        }

References $pos.

Referenced by extractInfo(), getCMAP4(), getGlyphs(), getHMetric(), getHMTX(), and makeSubset().

seek_table()

TTFontFile::seek_table	(		$tag,
			$offset_in_table = 0
	)

Definition at line 162 of file ttfonts.php.

                                                        {
                $tpos = $this->get_table_pos($tag);
                $this->_pos = $tpos[0] + $offset_in_table;
                fseek($this->fh, $this->_pos);
                return $this->_pos;
        }

References $_pos, $tag, and get_table_pos().

Referenced by extractInfo(), getHMetric(), getHMTX(), getLOCA(), and makeSubset().

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skip()

TTFontFile::skip

(

$delta

)

Definition at line 157 of file ttfonts.php.

                              {
                $this->_pos = $this->_pos + $delta;
                fseek($this->fh,$this->_pos);
        }

References $delta.

Referenced by extractInfo(), getCMAP4(), getGlyphs(), and makeSubset().

splice()

TTFontFile::splice	(		$stream,
			$offset,
			$value
	)

Definition at line 225 of file ttfonts.php.

                                                  {
                return substr($stream,0,$offset) . $value . substr($stream,$offset+strlen($value));
        }

References $offset, and $value.

Referenced by _set_short(), _set_ushort(), add(), and endTTFile().

sub32()

TTFontFile::sub32	(		$x,
			$y
	)

Definition at line 119 of file ttfonts.php.

                               {
                $xlo = $x[1];
                $xhi = $x[0];
                $ylo = $y[1];
                $yhi = $y[0];
                if ($ylo > $xlo) { $xlo += 1 << 16; $yhi += 1; }
                $reslo = $xlo-$ylo;
                if ($yhi > $xhi) { $xhi += 1 << 16;  }
                $reshi = $xhi-$yhi;
                $reshi = $reshi & 0xFFFF;
                return array($reshi, $reslo);
        }

Referenced by endTTFile().

unpack_short()

TTFontFile::unpack_short

(

$s

)

Definition at line 182 of file ttfonts.php.

                                  {
                $a = (ord($s[0])<<8) + ord($s[1]);
                if ($a & (1 << 15) ) { 
                        $a = ($a - (1 << 16)); 
                }
                return $a;
        }

References $a, and $s.

Field Documentation

$_pos

TTFontFile::$_pos

Definition at line 41 of file ttfonts.php.

Referenced by extractInfo(), getCMAP4(), makeSubset(), and seek_table().

$ascent

TTFontFile::$ascent

Definition at line 53 of file ttfonts.php.

Referenced by extractInfo().

$bbox

TTFontFile::$bbox

Definition at line 61 of file ttfonts.php.

$capHeight

TTFontFile::$capHeight

Definition at line 62 of file ttfonts.php.

$charToGlyph

TTFontFile::$charToGlyph

Definition at line 52 of file ttfonts.php.

Referenced by extractInfo(), getCMAP4(), and makeSubset().

$charWidths

TTFontFile::$charWidths

Definition at line 68 of file ttfonts.php.

$defaultWidth

TTFontFile::$defaultWidth

Definition at line 69 of file ttfonts.php.

$descent

TTFontFile::$descent

Definition at line 54 of file ttfonts.php.

$entrySelector

TTFontFile::$entrySelector

Definition at line 44 of file ttfonts.php.

Referenced by endTTFile(), and makeSubset().

$familyName

TTFontFile::$familyName

Definition at line 56 of file ttfonts.php.

$fh

TTFontFile::$fh

Definition at line 49 of file ttfonts.php.

$filename

TTFontFile::$filename

Definition at line 48 of file ttfonts.php.

$flags

TTFontFile::$flags

Definition at line 65 of file ttfonts.php.

Referenced by getGlyphs(), and makeSubset().

$fullName

TTFontFile::$fullName

Definition at line 58 of file ttfonts.php.

$glyphPos

TTFontFile::$glyphPos

Definition at line 51 of file ttfonts.php.

Referenced by getGlyphs(), and makeSubset().

$hmetrics

TTFontFile::$hmetrics

Definition at line 50 of file ttfonts.php.

$italicAngle

TTFontFile::$italicAngle

Definition at line 64 of file ttfonts.php.

$maxStrLenRead

TTFontFile::$maxStrLenRead

Definition at line 70 of file ttfonts.php.

$maxUni

TTFontFile::$maxUni

Definition at line 40 of file ttfonts.php.

$name

TTFontFile::$name

Definition at line 55 of file ttfonts.php.

$numTables

TTFontFile::$numTables

Definition at line 42 of file ttfonts.php.

Referenced by endTTFile(), and readTableDirectory().

$otables

TTFontFile::$otables

Definition at line 47 of file ttfonts.php.

Referenced by endTTFile().

$rangeShift

TTFontFile::$rangeShift

Definition at line 45 of file ttfonts.php.

Referenced by endTTFile(), and makeSubset().

$searchRange

TTFontFile::$searchRange

Definition at line 43 of file ttfonts.php.

Referenced by endTTFile(), and makeSubset().

$stemV

TTFontFile::$stemV

Definition at line 63 of file ttfonts.php.

$styleName

TTFontFile::$styleName

Definition at line 57 of file ttfonts.php.

$tables

TTFontFile::$tables

Definition at line 46 of file ttfonts.php.

Referenced by endTTFile().

$underlinePosition

TTFontFile::$underlinePosition

Definition at line 66 of file ttfonts.php.

$underlineThickness

TTFontFile::$underlineThickness

Definition at line 67 of file ttfonts.php.

$uniqueFontID

TTFontFile::$uniqueFontID

Definition at line 59 of file ttfonts.php.

$unitsPerEm

TTFontFile::$unitsPerEm

Definition at line 60 of file ttfonts.php.

Referenced by extractInfo().

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The documentation for this class was generated from the following file:

• include/tfpdf/font/unifont/ttfonts.php