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Direktori : /home2/selectio/public_html/bharath/a1tex.in/vendor/mpdf/mpdf/src/ |
Current File : /home2/selectio/public_html/bharath/a1tex.in/vendor/mpdf/mpdf/src/TTFontFileAnalysis.php |
<?php namespace Mpdf; class TTFontFileAnalysis extends TTFontFile { // Used to get font information from files in directory function extractCoreInfo($file, $TTCfontID = 0) { $this->filename = $file; $this->fh = fopen($file, 'rb'); if (!$this->fh) { throw new \Mpdf\MpdfException('ERROR - Can\'t open file ' . $file); } $this->_pos = 0; $this->charWidths = ''; $this->glyphPos = []; $this->charToGlyph = []; $this->tables = []; $this->otables = []; $this->ascent = 0; $this->descent = 0; $this->numTTCFonts = 0; $this->TTCFonts = []; $this->version = $version = $this->read_ulong(); $this->panose = []; // mPDF 5.0 if ($version == 0x4F54544F) { throw new \Mpdf\Exception\FontException(sprintf('Fonts with postscript outlines are not supported (%s)', $file)); } if ($version == 0x74746366) { if ($TTCfontID > 0) { $this->version = $version = $this->read_ulong(); // TTC Header version now if (!in_array($version, [0x00010000, 0x00020000])) { throw new \Mpdf\MpdfException("ERROR - NOT ADDED as Error parsing TrueType Collection: version=" . $version . " - " . $file); } } else { throw new \Mpdf\MpdfException("ERROR - Error parsing TrueType Collection - " . $file); } $this->numTTCFonts = $this->read_ulong(); for ($i = 1; $i <= $this->numTTCFonts; $i++) { $this->TTCFonts[$i]['offset'] = $this->read_ulong(); } $this->seek($this->TTCFonts[$TTCfontID]['offset']); $this->version = $version = $this->read_ulong(); // TTFont version again now $this->readTableDirectory(false); } else { if (!in_array($version, [0x00010000, 0x74727565])) { throw new \Mpdf\MpdfException("ERROR - NOT ADDED as Not a TrueType font: version=" . $version . " - " . $file); } $this->readTableDirectory(false); } /* Included for testing... $cmap_offset = $this->seek_table("cmap"); $this->skip(2); $cmapTableCount = $this->read_ushort(); $unicode_cmap_offset = 0; for ($i=0;$i<$cmapTableCount;$i++) { $x[$i]['platformId'] = $this->read_ushort(); $x[$i]['encodingId'] = $this->read_ushort(); $x[$i]['offset'] = $this->read_ulong(); $save_pos = $this->_pos; $x[$i]['format'] = $this->get_ushort($cmap_offset + $x[$i]['offset'] ); $this->seek($save_pos ); } print_r($x); exit; */ /////////////////////////////////// // name - Naming table /////////////////////////////////// /* Test purposes - displays table of names $name_offset = $this->seek_table("name"); $format = $this->read_ushort(); if ($format != 0 && $format != 1) // mPDF 5.3.73 die("Unknown name table format ".$format); $numRecords = $this->read_ushort(); $string_data_offset = $name_offset + $this->read_ushort(); for ($i=0;$i<$numRecords; $i++) { $x[$i]['platformId'] = $this->read_ushort(); $x[$i]['encodingId'] = $this->read_ushort(); $x[$i]['languageId'] = $this->read_ushort(); $x[$i]['nameId'] = $this->read_ushort(); $x[$i]['length'] = $this->read_ushort(); $x[$i]['offset'] = $this->read_ushort(); $N = ''; if ($x[$i]['platformId'] == 1 && $x[$i]['encodingId'] == 0 && $x[$i]['languageId'] == 0) { // Roman $opos = $this->_pos; $N = $this->get_chunk($string_data_offset + $x[$i]['offset'] , $x[$i]['length'] ); $this->_pos = $opos; $this->seek($opos); } else { // Unicode $opos = $this->_pos; $this->seek($string_data_offset + $x[$i]['offset'] ); $length = $x[$i]['length'] ; if ($length % 2 != 0) $length -= 1; // 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); } $x[$i]['names'][$nameId] = $N; } print_r($x); exit; */ $name_offset = $this->seek_table("name"); $format = $this->read_ushort(); if ($format != 0 && $format != 1) { // mPDF 5.3.73 throw new \Mpdf\MpdfException("ERROR - NOT ADDED as Unknown name table format " . $format . " - " . $file); } $numRecords = $this->read_ushort(); $string_data_offset = $name_offset + $this->read_ushort(); $names = [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) { $length += 1; } $length /= 2; $N = ''; while ($length > 0) { $char = $this->read_ushort(); $N .= (chr($char)); $length -= 1; } $this->_pos = $opos; $this->seek($opos); } elseif ($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 = preg_replace('/ /', '-', $names[6]); } elseif ($names[4]) { $psName = preg_replace('/ /', '-', $names[4]); } elseif ($names[1]) { $psName = preg_replace('/ /', '-', $names[1]); } else { $psName = ''; } if (!$names[1] && !$psName) { throw new \Mpdf\MpdfException("ERROR - NOT ADDED as Could not find valid font name - " . $file); } $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'; } /////////////////////////////////// // head - Font header table /////////////////////////////////// $this->seek_table("head"); $ver_maj = $this->read_ushort(); $ver_min = $this->read_ushort(); if ($ver_maj != 1) { throw new \Mpdf\MpdfException('ERROR - NOT ADDED as Unknown head table version ' . $ver_maj . '.' . $ver_min . " - " . $file); } $this->fontRevision = $this->read_ushort() . $this->read_ushort(); $this->skip(4); $magic = $this->read_ulong(); if ($magic != 0x5F0F3CF5) { throw new \Mpdf\MpdfException('ERROR - NOT ADDED as Invalid head table magic ' . $magic . " - " . $file); } $this->skip(2); $this->unitsPerEm = $unitsPerEm = $this->read_ushort(); $scale = 1000 / $unitsPerEm; $this->skip(24); $macStyle = $this->read_short(); $this->skip(4); $indexLocFormat = $this->read_short(); /////////////////////////////////// // OS/2 - OS/2 and Windows metrics table /////////////////////////////////// $sFamily = ''; $panose = ''; $fsSelection = ''; if (isset($this->tables["OS/2"])) { $this->seek_table("OS/2"); $this->skip(30); $sF = $this->read_short(); $sFamily = ($sF >> 8); $this->_pos += 10; //PANOSE = 10 byte length $panose = fread($this->fh, 10); $this->panose = []; for ($p = 0; $p < strlen($panose); $p++) { $this->panose[] = ord($panose[$p]); } $this->skip(20); $fsSelection = $this->read_short(); } /////////////////////////////////// // post - PostScript table /////////////////////////////////// $this->seek_table("post"); $this->skip(4); $this->italicAngle = $this->read_short() + $this->read_ushort() / 65536.0; $this->skip(4); $isFixedPitch = $this->read_ulong(); /////////////////////////////////// // 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 + $offset; } } } elseif ((($platformID == 3 && $encodingID == 10) || $platformID == 0)) { // Microsoft, Unicode Format 12 table HKCS $format = $this->get_ushort($cmap_offset + $offset); if ($format == 12) { $unicode_cmap_offset = $cmap_offset + $offset; break; } } $this->seek($save_pos); } if (!$unicode_cmap_offset) { throw new \Mpdf\MpdfException('ERROR - Font (' . $this->filename . ') NOT ADDED as it is not Unicode encoded, and cannot be used by mPDF'); } $rtl = false; $indic = false; $cjk = false; $sip = false; $smp = false; $pua = false; $puaag = false; $glyphToChar = []; $unAGlyphs = ''; // Format 12 CMAP does characters above Unicode BMP i.e. some HKCS characters U+20000 and above if ($format == 12) { $this->seek($unicode_cmap_offset + 4); $length = $this->read_ulong(); $limit = $unicode_cmap_offset + $length; $this->skip(4); $nGroups = $this->read_ulong(); for ($i = 0; $i < $nGroups; $i++) { $startCharCode = $this->read_ulong(); $endCharCode = $this->read_ulong(); $startGlyphCode = $this->read_ulong(); if (($endCharCode > 0x20000 && $endCharCode < 0x2A6DF) || ($endCharCode > 0x2F800 && $endCharCode < 0x2FA1F)) { $sip = true; } if ($endCharCode > 0x10000 && $endCharCode < 0x1FFFF) { $smp = true; } if (($endCharCode > 0x0590 && $endCharCode < 0x077F) || ($endCharCode > 0xFE70 && $endCharCode < 0xFEFF) || ($endCharCode > 0xFB50 && $endCharCode < 0xFDFF)) { $rtl = true; } if ($endCharCode > 0x0900 && $endCharCode < 0x0DFF) { $indic = true; } if ($endCharCode > 0xE000 && $endCharCode < 0xF8FF) { $pua = true; if ($endCharCode > 0xF500 && $endCharCode < 0xF7FF) { $puaag = true; } } if (($endCharCode > 0x2E80 && $endCharCode < 0x4DC0) || ($endCharCode > 0x4E00 && $endCharCode < 0xA4CF) || ($endCharCode > 0xAC00 && $endCharCode < 0xD7AF) || ($endCharCode > 0xF900 && $endCharCode < 0xFAFF) || ($endCharCode > 0xFE30 && $endCharCode < 0xFE4F)) { $cjk = true; } $offset = 0; // Get each glyphToChar - only point if going to analyse un-mapped Arabic Glyphs if (isset($this->tables['post'])) { for ($unichar = $startCharCode; $unichar <= $endCharCode; $unichar++) { $glyph = $startGlyphCode + $offset; $offset++; $glyphToChar[$glyph][] = $unichar; } } } } else { // Format 4 CMap $this->seek($unicode_cmap_offset + 2); $length = $this->read_ushort(); $limit = $unicode_cmap_offset + $length; $this->skip(2); $segCount = $this->read_ushort() / 2; $this->skip(6); $endCount = []; for ($i = 0; $i < $segCount; $i++) { $endCount[] = $this->read_ushort(); } $this->skip(2); $startCount = []; for ($i = 0; $i < $segCount; $i++) { $startCount[] = $this->read_ushort(); } $idDelta = []; for ($i = 0; $i < $segCount; $i++) { $idDelta[] = $this->read_short(); } $idRangeOffset_start = $this->_pos; $idRangeOffset = []; for ($i = 0; $i < $segCount; $i++) { $idRangeOffset[] = $this->read_ushort(); } for ($n = 0; $n < $segCount; $n++) { if (($endCount[$n] > 0x0590 && $endCount[$n] < 0x077F) || ($endCount[$n] > 0xFE70 && $endCount[$n] < 0xFEFF) || ($endCount[$n] > 0xFB50 && $endCount[$n] < 0xFDFF)) { $rtl = true; } if ($endCount[$n] > 0x0900 && $endCount[$n] < 0x0DFF) { $indic = true; } if (($endCount[$n] > 0x2E80 && $endCount[$n] < 0x4DC0) || ($endCount[$n] > 0x4E00 && $endCount[$n] < 0xA4CF) || ($endCount[$n] > 0xAC00 && $endCount[$n] < 0xD7AF) || ($endCount[$n] > 0xF900 && $endCount[$n] < 0xFAFF) || ($endCount[$n] > 0xFE30 && $endCount[$n] < 0xFE4F)) { $cjk = true; } if ($endCount[$n] > 0xE000 && $endCount[$n] < 0xF8FF) { $pua = true; if ($endCount[$n] > 0xF500 && $endCount[$n] < 0xF7FF) { $puaag = true; } } // Get each glyphToChar - only point if going to analyse un-mapped Arabic Glyphs if (isset($this->tables['post'])) { $endpoint = ($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; } } } $glyphToChar[$glyph][] = $unichar; } } } } $bold = false; $italic = false; $ftype = ''; if ($macStyle & (1 << 0)) { $bold = true; } // bit 0 bold elseif ($fsSelection & (1 << 5)) { $bold = true; } // 5 BOLD Characters are emboldened if ($macStyle & (1 << 1)) { $italic = true; } // bit 1 italic elseif ($fsSelection & (1 << 0)) { $italic = true; } // 0 ITALIC Font contains Italic characters, otherwise they are upright elseif ($this->italicAngle <> 0) { $italic = true; } if ($isFixedPitch) { $ftype = 'mono'; } elseif ($sFamily > 0 && $sFamily < 8) { $ftype = 'serif'; } elseif ($sFamily == 8) { $ftype = 'sans'; } elseif ($sFamily == 10) { $ftype = 'cursive'; } // Use PANOSE if ($panose) { $bFamilyType = ord($panose[0]); if ($bFamilyType == 2) { $bSerifStyle = ord($panose[1]); if (!$ftype) { if ($bSerifStyle > 1 && $bSerifStyle < 11) { $ftype = 'serif'; } elseif ($bSerifStyle > 10) { $ftype = 'sans'; } } $bProportion = ord($panose[3]); if ($bProportion == 9 || $bProportion == 1) { $ftype = 'mono'; } // ==1 i.e. No Fit needed for OCR-a and -b } elseif ($bFamilyType == 3) { $ftype = 'cursive'; } } fclose($this->fh); return [$this->familyName, $bold, $italic, $ftype, $TTCfontID, $rtl, $indic, $cjk, $sip, $smp, $puaag, $pua, $unAGlyphs]; } }