--- /dev/null
+<?php
+/**
+ * @package php-font-lib
+ * @link https://github.com/PhenX/php-font-lib
+ * @author Fabien Ménager <fabien.menager@gmail.com>
+ * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ */
+
+namespace FontLib\Table\Type;
+use FontLib\Table\Table;
+
+/**
+ * `hmtx` font table.
+ *
+ * @package php-font-lib
+ */
+class hmtx extends Table {
+ protected function _parse() {
+ $font = $this->getFont();
+ $offset = $font->pos();
+
+ $numOfLongHorMetrics = $font->getData("hhea", "numOfLongHorMetrics");
+ $numGlyphs = $font->getData("maxp", "numGlyphs");
+
+ $font->seek($offset);
+
+ $data = array();
+ $metrics = $font->readUInt16Many($numOfLongHorMetrics * 2);
+ for ($gid = 0, $mid = 0; $gid < $numOfLongHorMetrics; $gid++) {
+ $advanceWidth = $metrics[$mid++];
+ $leftSideBearing = $metrics[$mid++];
+ $data[$gid] = array($advanceWidth, $leftSideBearing);
+ }
+
+ if ($numOfLongHorMetrics < $numGlyphs) {
+ $lastWidth = end($data);
+ $data = array_pad($data, $numGlyphs, $lastWidth);
+ }
+
+ $this->data = $data;
+ }
+
+ protected function _encode() {
+ $font = $this->getFont();
+ $subset = $font->getSubset();
+ $data = $this->data;
+
+ $length = 0;
+
+ foreach ($subset as $gid) {
+ $length += $font->writeUInt16($data[$gid][0]);
+ $length += $font->writeUInt16($data[$gid][1]);
+ }
+
+ return $length;
+ }
+}
\ No newline at end of file