114 lines
3.1 KiB
PHP
114 lines
3.1 KiB
PHP
<?php
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namespace NoccyLabs\GdLabel;
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class FontRegistry
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{
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private $fonts = [];
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private static $instance = null;
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public static function getInstance()
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{
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if (!self::$instance) {
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self::$instance = new FontRegistry();
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self::$instance->load();
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}
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return self::$instance;
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}
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public function load(string $lang='en')
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{
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exec("fc-list -v", $out, $ret);
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$meta = []; $curr = [];
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foreach ($out as $line) {
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if (trim($line)) {
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$curr[] = $line;
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} else {
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$meta[] = $curr;
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$curr = [];
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}
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}
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foreach ($meta as $font) {
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$this->parseMeta($font, $lang);
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}
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}
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private function parseMeta(array $meta, string $lang)
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{
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$coll = [];
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foreach ($meta as $line) {
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if (9 != ord($line[0]) or strpos($line,": ") === false or ctype_digit($line[1])) {
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continue;
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}
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list ($key, $values) = explode(": ", substr($line, 1), 2);
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if (preg_match('/.+lang$/', $key)) {
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$base = substr($key, 0, -4);
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$baseMeta = $coll[$base];
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$vals = str_getcsv($baseMeta, ' ', '"');
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$langs = str_getcsv($values, ' ', '"');
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$keep = [];
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while (count($langs)>0) {
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$l = $this->parseValue(array_shift($langs));
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$v = $this->parseValue(array_shift($vals));
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if ($l == $lang) {
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$keep[] = $v;
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}
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}
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$coll[$base] = $keep;
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} else {
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$coll[$key] = $values;
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}
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}
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foreach ($coll as $key=>$values) {
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if (is_array($values)) {
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continue;
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}
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$coll[$key] = $this->parseValue($values);
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}
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$langs = explode("|", $coll['lang']);
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if (!in_array($lang, $langs)) {
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return;
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}
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$this->fonts[] = (object)$coll;
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}
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private function parseValue($value)
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{
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if (substr($value, -3, 3) == "(s)") {
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$value = substr($value, 0, -3);
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if ($value && $value[0] == '"') {
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$value = substr($value, 1, strpos($value, '"', 2)-1);
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}
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}
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if (substr($value, -3, 3) == "(i)") {
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$value = intval($value);
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}
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return $value;
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}
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public function findFont($family, $styles='regular')
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{
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$styles = explode(" ",$styles);
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foreach ($this->fonts as $font) {
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$families = array_map("strtolower", (array)$font->family);
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if (!in_array(strtolower($family), $families)) {
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continue;
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}
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$fontStyles = array_map("strtolower", $font->style);
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foreach ($styles as $style) {
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if (!in_array($style, $fontStyles)) {
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continue(2);
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}
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}
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if (count(array_diff($fontStyles, $styles))>0) {
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continue;
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}
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return $font->file;
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}
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}
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}
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