function encode($tags = array())
{
if (!self::$raw) {
$tags = array_merge(array("head", "hhea", "cmap", "hmtx", "maxp", "glyf", "loca", "name", "post"), $tags);
} else {
$tags = array_keys($this->directory);
}
$num_tables = count($tags);
$n = 16;
// @todo
Font::d("Tables : " . implode(", ", $tags));
$entries = array();
foreach ($tags as $tag) {
if (!isset($this->directory[$tag])) {
Font::d(" >> '{$tag}' table doesn't exist");
continue;
}
$entries[$tag] = $this->directory[$tag];
}
$this->header->data["numTables"] = $num_tables;
$this->header->encode();
$directory_offset = $this->pos();
$offset = $directory_offset + $num_tables * $n;
$this->seek($offset);
$i = 0;
foreach ($entries as $tag => $entry) {
$entry->encode($directory_offset + $i * $n);
$i++;
}
}
function parseHeader()
{
if (!empty($this->header)) {
return;
}
$this->seek($this->tableOffset);
$this->header = new Font_TrueType_Header($this);
$this->header->parse();
}
