/**
* Constructor
*
* Instantiate a TTF 'maxp' table object.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return Maxp
*/
public function __construct(\Pop\Pdf\Build\Font\TrueType $font)
{
parent::__construct($this->allowed);
$bytePos = $font->tableInfo['maxp']->offset + 4;
$ary = unpack('nnumberOfGlyphs/', $font->read($bytePos, 2));
$this->numberOfGlyphs = $ary['numberOfGlyphs'];
}
/**
* Constructor
*
* Instantiate a TTF 'post' table object.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return Post
*/
public function __construct(\Pop\Pdf\Build\Font\TrueType $font)
{
parent::__construct($this->allowed);
$bytePos = $font->tableInfo['post']->offset + 4;
$italicBytes = $font->read($bytePos, 4);
$this->italicAngle = $font->readFixed(16, 16, $italicBytes);
$bytePos += 8;
$ary = unpack('nfixed/', $font->read($bytePos, 2));
$ary = $font->shiftToSigned($ary);
$this->fixed = $ary['fixed'];
}
/**
* Constructor
*
* Instantiate a TTF 'loca' table object.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return Loca
*/
public function __construct(\Pop\Pdf\Build\Font\TrueType $font)
{
parent::__construct($this->allowed);
$bytePos = $font->tableInfo['loca']->offset;
$format = $font->header->indexToLocFormat == 1 ? 'N' : 'n';
$byteLength = $font->header->indexToLocFormat == 1 ? 4 : 2;
$multiplier = $font->header->indexToLocFormat == 1 ? 1 : 2;
for ($i = 0; $i < $font->numberOfGlyphs + 1; $i++) {
$ary = unpack($format . 'offset', $font->read($bytePos, $byteLength));
$this->offsets[$i] = $ary['offset'] * $multiplier;
$bytePos += $byteLength;
}
}
/**
* Constructor
*
* Instantiate a TTF 'hmtx' table object.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return Hmtx
*/
public function __construct(\Pop\Pdf\Build\Font\TrueType $font)
{
parent::__construct($this->allowed);
$bytePos = $font->tableInfo['hmtx']->offset;
for ($i = 0; $i < $font->numberOfHMetrics; $i++) {
$ary = unpack('nglyphWidth/', $font->read($bytePos, 2));
$this->glyphWidths[$i] = $font->shiftToSigned($ary['glyphWidth']);
$bytePos += 4;
}
while (count($this->glyphWidths) < $font->numberOfGlyphs) {
$this->glyphWidths[] = end($this->glyphWidths);
}
}
/**
* Method to parse the CMAP sub-tables.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return void
*/
protected function parseSubTables(\Pop\Pdf\Build\Font\TrueType $font)
{
$bytePos = $font->tableInfo['cmap']->offset + 4;
// Get each of the sub-table's data.
for ($i = 0; $i < $this->header->numberOfTables; $i++) {
$ary = unpack('nplatformId/' . 'nencodingId/' . 'Noffset', $font->read($bytePos, 8));
if ($ary['platformId'] == 0 && $ary['encodingId'] == 0) {
$ary['encoding'] = 'Unicode 2.0';
} else {
if ($ary['platformId'] == 0 && $ary['encodingId'] == 3) {
$ary['encoding'] = 'Unicode';
} else {
if ($ary['platformId'] == 3 && $ary['encodingId'] == 1) {
$ary['encoding'] = 'Microsoft Unicode';
} else {
if ($ary['platformId'] == 1 && $ary['encodingId'] == 0) {
$ary['encoding'] = 'Mac Roman';
} else {
$ary['encoding'] = 'Unknown';
}
}
}
}
$this->subTables[] = new \ArrayObject($ary, \ArrayObject::ARRAY_AS_PROPS);
$bytePos += 8;
}
// Parse each of the sub-table's data.
foreach ($this->subTables as $key => $subTable) {
$bytePos = $font->tableInfo['cmap']->offset + $subTable->offset;
$ary = unpack('nformat/' . 'nlength/' . 'nlanguage', $font->read($bytePos, 6));
$this->subTables[$key]->format = $ary['format'];
$this->subTables[$key]->length = $ary['length'];
$this->subTables[$key]->language = $ary['language'];
$bytePos += 6;
$this->subTables[$key]->data = $font->read($bytePos, $ary['length'] - 6);
switch ($this->subTables[$key]->format) {
case 0:
$this->subTables[$key]->parsed = Cmap\ByteEncoding::parseData($this->subTables[$key]->data);
break;
case 4:
$this->subTables[$key]->parsed = Cmap\SegmentToDelta::parseData($this->subTables[$key]->data);
break;
case 6:
$this->subTables[$key]->parsed = Cmap\TrimmedTable::parseData($this->subTables[$key]->data);
break;
}
}
}
/**
* Constructor
*
* Instantiate a TTF 'name' table object.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return Name
*/
public function __construct(\Pop\Pdf\Build\Font\TrueType $font)
{
$font->tableInfo['name']->header = new \ArrayObject(unpack('nformatSelector/' . 'nnameRecordsCount/' . 'nstorageOffset', $font->read($font->tableInfo['name']->offset, 6)), \ArrayObject::ARRAY_AS_PROPS);
$bytePos = $font->tableInfo['name']->offset + 6;
for ($j = 0; $j < $font->tableInfo['name']->header->nameRecordsCount; $j++) {
$ttfRecord = unpack('nplatformId/' . 'nencodingId/' . 'nlanguageId/' . 'nnameId/' . 'nlength/' . 'noffset', $font->read($bytePos, 12));
$ttfRecordOffset = $bytePos + 12;
$nextBytePos = $font->tableInfo['name']->offset + $font->tableInfo['name']->header->storageOffset + $ttfRecord['offset'];
$ttfValue = $font->read($nextBytePos, $ttfRecord['length']);
if ($ttfRecord['platformId'] != 1) {
$ttfValue = @iconv('UTF-16be', 'UTF-8//TRANSLIT', $ttfValue);
}
if ($ttfValue != '' && isset($ttfRecord['nameId']) && isset($this->names[$ttfRecord['nameId']])) {
$this->allowed[$this->names[$ttfRecord['nameId']]] = $ttfValue;
}
$bytePos = $ttfRecordOffset;
}
parent::__construct($this->allowed);
}
/**
* Constructor
*
* Instantiate a TTF 'head' table object.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return Head
*/
public function __construct(\Pop\Pdf\Build\Font\TrueType $font)
{
$bytePos = $font->tableInfo['head']->offset;
$tableVersionNumberBytes = $font->read($bytePos, 4);
$tableVersionNumber = $font->readFixed(16, 16, $tableVersionNumberBytes);
$bytePos += 4;
$fontRevisionBytes = $font->read($bytePos, 4);
$fontRevision = $font->readFixed(16, 16, $fontRevisionBytes);
$versionArray = ['tableVersionNumber' => $tableVersionNumber, 'fontRevision' => $fontRevision];
$bytePos += 4;
$headerArray = unpack('NcheckSumAdjustment/' . 'NmagicNumber/' . 'nflags/' . 'nunitsPerEm', $font->read($bytePos, 12));
$bytePos += 28;
$bBox = unpack('nxMin/' . 'nyMin/' . 'nxMax/' . 'nyMax', $font->read($bytePos, 8));
$bBox = $font->shiftToSigned($bBox);
$bytePos += 14;
$indexToLocFormat = unpack('nindexToLocFormat', $font->read($bytePos, 2));
$headerArray['indexToLocFormat'] = $font->shiftToSigned($indexToLocFormat['indexToLocFormat']);
$this->allowed = array_merge($versionArray, $headerArray, $bBox);
parent::__construct($this->allowed);
}
/**
* Constructor
*
* Instantiate a TTF 'hhea' table object.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return Hhea
*/
public function __construct(\Pop\Pdf\Build\Font\TrueType $font)
{
parent::__construct($this->allowed);
$bytePos = $font->tableInfo['hhea']->offset + 4;
$ary = unpack('nascent/' . 'ndescent', $font->read($bytePos, 4));
$ary = $font->shiftToSigned($ary);
$this->ascent = $font->toEmSpace($ary['ascent']);
$this->descent = $font->toEmSpace($ary['descent']);
$bytePos = $font->tableInfo['hhea']->offset + 34;
$ary = unpack('nnumberOfHMetrics/', $font->read($bytePos, 2));
$this->numberOfHMetrics = $ary['numberOfHMetrics'];
}
/**
* Constructor
*
* Instantiate a OTF 'OS/2' table object.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return Os2
*/
public function __construct(\Pop\Pdf\Build\Font\TrueType $font)
{
parent::__construct($this->allowed);
$this->flags = new \ArrayObject(['isFixedPitch' => false, 'isSerif' => false, 'isSymbolic' => false, 'isScript' => false, 'isNonSymbolic' => false, 'isItalic' => false, 'isAllCap' => false, 'isSmallCap' => false, 'isForceBold' => false], \ArrayObject::ARRAY_AS_PROPS);
$bytePos = $font->tableInfo['OS/2']->offset + 8;
$ary = unpack("nfsType", $font->read($bytePos, 2));
$this->embeddable = $ary['fsType'] != 2 && ($ary['fsType'] & 0x200) == 0;
$bytePos = $font->tableInfo['OS/2']->offset + 30;
$ary = unpack("nfamily_class", $font->read($bytePos, 2));
$familyClass = $font->shiftToSigned($ary['family_class']) >> 8;
if ($familyClass >= 1 && $familyClass <= 5 || $familyClass == 7) {
$this->flags->isSerif = true;
} else {
if ($familyClass == 8) {
$this->flags->isSerif = false;
}
}
if ($familyClass == 10) {
$this->flags->isScript = true;
}
if ($familyClass == 12) {
$this->flags->isSymbolic = true;
$this->flags->isNonSymbolic = false;
} else {
$this->flags->isSymbolic = false;
$this->flags->isNonSymbolic = true;
}
// Unicode bit-sniffing may not be necessary.
$bytePos += 3;
$ary = unpack('NunicodeRange1/' . 'NunicodeRange2/' . 'NunicodeRange3/' . 'NunicodeRange4', $font->read($bytePos, 16));
if ($ary['unicodeRange1'] == 1 && $ary['unicodeRange2'] == 0 && $ary['unicodeRange3'] == 0 && $ary['unicodeRange4'] == 0) {
$this->flags->isSymbolic = false;
$this->flags->isNonSymbolic = true;
}
$bytePos = $font->tableInfo['OS/2']->offset + 76;
$ary = unpack("ncap/", $font->read($bytePos, 2));
$this->capHeight = $font->toEmSpace($font->shiftToSigned($ary['cap']));
}
/**
* Constructor
*
* Instantiate a OpenType font file object based on a pre-existing font file on disk.
*
* @param string $font
* @return OpenType
*/
public function __construct($font)
{
parent::__construct($font);
}
/**
* Constructor
*
* Instantiate a TTF 'glyf' table object.
*
* @param \Pop\Pdf\Build\Font\TrueType $font
* @return Glyf
*/
public function __construct(\Pop\Pdf\Build\Font\TrueType $font)
{
parent::__construct($this->allowed);
$locaLength = count($font->tables['loca']->offsets);
$j = 0;
foreach ($font->tables['loca']->offsets as $offset) {
$bytePos = $font->tableInfo['glyf']->offset + $offset;
$ary = unpack('nnumberOfContours/' . 'nxMin/' . 'nyMin/' . 'nxMax/' . 'nyMax', $font->read($bytePos, 10));
$ary = $font->shiftToSigned($ary);
$ary['xMin'] = $font->toEmSpace($ary['xMin']);
$ary['yMin'] = $font->toEmSpace($ary['yMin']);
$ary['xMax'] = $font->toEmSpace($ary['xMax']);
$ary['yMax'] = $font->toEmSpace($ary['yMax']);
$ary['width'] = $ary['xMin'] + $ary['xMax'];
$this->glyphWidths[] = $ary['width'];
$bytePos += 10;
$ary['endPtsOfContours'] = [];
$ary['instructionLength'] = null;
$ary['instructions'] = null;
$ary['flags'] = null;
// The simple and composite glyph descriptions may not be necessary.
// If simple glyph.
if ($ary['numberOfContours'] > 0) {
for ($i = 0; $i < $ary['numberOfContours']; $i++) {
$ar = unpack('nendPt', $font->read($bytePos, 2));
$ary['endPtsOfContours'][$i] = $ar['endPt'];
$bytePos += 2;
}
$ar = unpack('ninstructionLength', $font->read($bytePos, 2));
$ary['instructionLength'] = $ar['instructionLength'];
$bytePos += 2;
if ($ary['instructionLength'] > 0) {
for ($i = 0; $i < $ary['instructionLength']; $i++) {
$byte = $font->read($bytePos, 1);
if (strlen($byte) != 0) {
$ar = unpack('Cinstruction', $byte);
$ary['instructions'][$i] = $ar['instruction'];
$bytePos++;
} else {
$ary['instructions'][$i] = null;
}
}
}
$bytePos++;
$byte = $font->read($bytePos, 1);
if (strlen($byte) != 0) {
$ar = unpack('Cflags', $byte);
$ary['flags'] = $ar['flags'];
} else {
$ary['flags'] = 0;
}
if ($j < $locaLength - 1) {
$this->glyphs[] = $ary;
}
// Stopped here. Still need to get the x & y coordinates of the simple glyph.
// Else, if composite glyph.
} else {
if ($j < $locaLength - 1) {
// Composite glyph goes here.
}
}
$j++;
}
}
