Implemented a proper font registry
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c8abdce24a
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@ -7,52 +7,6 @@ use NoccyLabs\GdLabel\Element;
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class TextElement extends Element
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{
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private static $fontCache = [];
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private static function findFont($font, $style='regular')
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{
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if (count(self::$fontCache)==0) {
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self::updateFonts();
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}
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$font = strtolower($font);
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if (array_key_exists($font, self::$fontCache)) {
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$info = self::$fontCache[$font];
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if (!$style) {
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return $info;
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}
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if (array_key_exists($style, $info)) {
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return $info[$style];
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}
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return false;
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}
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return false;
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}
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private static function updateFonts()
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{
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exec("fc-list", $output, $ret);
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if ($ret != 0) {
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fprintf(STDERR, "%s\n", join("\n",$output));
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return;
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}
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foreach ($output as $line) {
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$seg = explode(":", $line);
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$file = $seg[0];
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$name = strtolower(trim(preg_replace("/[^A-Za-z0-9 ]/", '', $seg[1])));
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$style = strtolower(str_replace("style=","",$seg[2]));
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$style = explode(",",$style);
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$style = reset($style);
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if (!array_key_exists($name, self::$fontCache)) {
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self::$fontCache[$name] = [];
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}
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self::$fontCache[$name][$style] = $file;
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}
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}
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protected function draw($gd, int $x, int $y, int $width, int $height, array $params)
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{
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if (($bound = $this->getProp("bind-value"))) {
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@ -62,8 +16,9 @@ class TextElement extends Element
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}
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$fontName = $this->getProp("font")?:"liberation sans";
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$fontStyle = $this->getProp("font-style")?:"regular";
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$font = \NoccyLabs\GdLabel\FontRegistry::getInstance()->findFont($fontName, $fontStyle);
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$font = self::findFont($fontName);
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if (!$font) {
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return;
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}
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@ -0,0 +1,113 @@
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<?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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