--- /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;
+
+use FontLib\Table\Type\name;
+use FontLib\TrueType\File;
+
+/**
+ * Adobe Font Metrics file creation utility class.
+ *
+ * @package php-font-lib
+ */
+class AdobeFontMetrics {
+ private $f;
+
+ /**
+ * @var File
+ */
+ private $font;
+
+ function __construct(File $font) {
+ $this->font = $font;
+ }
+
+ function write($file, $encoding = null) {
+ $map_data = array();
+
+ if ($encoding) {
+ $encoding = preg_replace("/[^a-z0-9-_]/", "", $encoding);
+ $map_file = dirname(__FILE__) . "/../maps/$encoding.map";
+ if (!file_exists($map_file)) {
+ throw new \Exception("Unkown encoding ($encoding)");
+ }
+
+ $map = new EncodingMap($map_file);
+ $map_data = $map->parse();
+ }
+
+ $this->f = fopen($file, "w+");
+
+ $font = $this->font;
+
+ $this->startSection("FontMetrics", 4.1);
+ $this->addPair("Notice", "Converted by PHP-font-lib");
+ $this->addPair("Comment", "https://github.com/PhenX/php-font-lib");
+
+ $encoding_scheme = ($encoding ? $encoding : "FontSpecific");
+ $this->addPair("EncodingScheme", $encoding_scheme);
+
+ $records = $font->getData("name", "records");
+ foreach ($records as $id => $record) {
+ if (!isset(name::$nameIdCodes[$id]) || preg_match("/[\r\n]/", $record->string)) {
+ continue;
+ }
+
+ $this->addPair(name::$nameIdCodes[$id], $record->string);
+ }
+
+ $os2 = $font->getData("OS/2");
+ $this->addPair("Weight", ($os2["usWeightClass"] > 400 ? "Bold" : "Medium"));
+
+ $post = $font->getData("post");
+ $this->addPair("ItalicAngle", $post["italicAngle"]);
+ $this->addPair("IsFixedPitch", ($post["isFixedPitch"] ? "true" : "false"));
+ $this->addPair("UnderlineThickness", $font->normalizeFUnit($post["underlineThickness"]));
+ $this->addPair("UnderlinePosition", $font->normalizeFUnit($post["underlinePosition"]));
+
+ $hhea = $font->getData("hhea");
+
+ if (isset($hhea["ascent"])) {
+ $this->addPair("FontHeightOffset", $font->normalizeFUnit($hhea["lineGap"]));
+ $this->addPair("Ascender", $font->normalizeFUnit($hhea["ascent"]));
+ $this->addPair("Descender", $font->normalizeFUnit($hhea["descent"]));
+ }
+ else {
+ $this->addPair("FontHeightOffset", $font->normalizeFUnit($os2["typoLineGap"]));
+ $this->addPair("Ascender", $font->normalizeFUnit($os2["typoAscender"]));
+ $this->addPair("Descender", -abs($font->normalizeFUnit($os2["typoDescender"])));
+ }
+
+ $head = $font->getData("head");
+ $this->addArray("FontBBox", array(
+ $font->normalizeFUnit($head["xMin"]),
+ $font->normalizeFUnit($head["yMin"]),
+ $font->normalizeFUnit($head["xMax"]),
+ $font->normalizeFUnit($head["yMax"]),
+ ));
+
+ $glyphIndexArray = $font->getUnicodeCharMap();
+
+ if ($glyphIndexArray) {
+ $hmtx = $font->getData("hmtx");
+ $names = $font->getData("post", "names");
+
+ $this->startSection("CharMetrics", count($hmtx));
+
+ if ($encoding) {
+ foreach ($map_data as $code => $value) {
+ list($c, $name) = $value;
+
+ if (!isset($glyphIndexArray[$c])) {
+ continue;
+ }
+
+ $g = $glyphIndexArray[$c];
+
+ if (!isset($hmtx[$g])) {
+ $hmtx[$g] = $hmtx[0];
+ }
+
+ $this->addMetric(array(
+ "C" => ($code > 255 ? -1 : $code),
+ "WX" => $font->normalizeFUnit($hmtx[$g][0]),
+ "N" => $name,
+ ));
+ }
+ }
+ else {
+ foreach ($glyphIndexArray as $c => $g) {
+ if (!isset($hmtx[$g])) {
+ $hmtx[$g] = $hmtx[0];
+ }
+
+ $this->addMetric(array(
+ "U" => $c,
+ "WX" => $font->normalizeFUnit($hmtx[$g][0]),
+ "N" => (isset($names[$g]) ? $names[$g] : sprintf("uni%04x", $c)),
+ "G" => $g,
+ ));
+ }
+ }
+
+ $this->endSection("CharMetrics");
+
+ $kern = $font->getData("kern", "subtable");
+ $tree = $kern["tree"];
+
+ if (!$encoding && is_array($tree)) {
+ $this->startSection("KernData");
+ $this->startSection("KernPairs", count($tree, COUNT_RECURSIVE) - count($tree));
+
+ foreach ($tree as $left => $values) {
+ if (!is_array($values)) {
+ continue;
+ }
+ if (!isset($glyphIndexArray[$left])) {
+ continue;
+ }
+
+ $left_gid = $glyphIndexArray[$left];
+
+ if (!isset($names[$left_gid])) {
+ continue;
+ }
+
+ $left_name = $names[$left_gid];
+
+ $this->addLine("");
+
+ foreach ($values as $right => $value) {
+ if (!isset($glyphIndexArray[$right])) {
+ continue;
+ }
+
+ $right_gid = $glyphIndexArray[$right];
+
+ if (!isset($names[$right_gid])) {
+ continue;
+ }
+
+ $right_name = $names[$right_gid];
+ $this->addPair("KPX", "$left_name $right_name $value");
+ }
+ }
+
+ $this->endSection("KernPairs");
+ $this->endSection("KernData");
+ }
+ }
+
+ $this->endSection("FontMetrics");
+ }
+
+ function addLine($line) {
+ fwrite($this->f, "$line\n");
+ }
+
+ function addPair($key, $value) {
+ $this->addLine("$key $value");
+ }
+
+ function addArray($key, $array) {
+ $this->addLine("$key " . implode(" ", $array));
+ }
+
+ function addMetric($data) {
+ $array = array();
+ foreach ($data as $key => $value) {
+ $array[] = "$key $value";
+ }
+ $this->addLine(implode(" ; ", $array));
+ }
+
+ function startSection($name, $value = "") {
+ $this->addLine("Start$name $value");
+ }
+
+ function endSection($name) {
+ $this->addLine("End$name");
+ }
+}