/**
* Parses horizontal header table (hhea) and sticks it in the indicated font
*/
function get_hhea_table($font)
{
if ($this->hhea_table != '') {
return $this->hhea_table;
}
$hhea =& $font->tables['hhea'];
$fh = $font->open();
fseek($fh, $hhea->offset);
// see http://www.microsoft.com/typography/otspec/hhea.htm
$hhea = new OTTTFontHHEA();
$hhea->Table_version_number = FileRead::read_Fixed($fh);
$hhea->Ascender = FileRead::read_FWORD($fh);
$hhea->Descender = FileRead::read_FWORD($fh);
$hhea->LineGap = FileRead::read_FWORD($fh);
$hhea->advanceWidthMax = FileRead::read_UFWORD($fh);
$hhea->minLeftSideBearing = FileRead::read_FWORD($fh);
$hhea->minRightSideBearing = FileRead::read_FWORD($fh);
$hhea->xMaxExtent = FileRead::read_FWORD($fh);
$hhea->caretSlopeRise = FileRead::read_SHORT($fh);
$hhea->caretSlopeRun = FileRead::read_SHORT($fh);
$hhea->caretOffset = FileRead::read_SHORT($fh);
$hhea->reserved1 = FileRead::read_SHORT($fh);
$hhea->reserved2 = FileRead::read_SHORT($fh);
$hhea->reserved3 = FileRead::read_SHORT($fh);
$hhea->reserved4 = FileRead::read_SHORT($fh);
$hhea->metricDataFormat = FileRead::read_SHORT($fh);
$hhea->numberOfHMetrics = FileRead::read_USHORT($fh);
$this->hhea_table = $hhea;
fclose($fh);
return $this->get_hhea_table($font);
}
