public static TreeMap<String, String> enumerateFonts() {
String[] fontdirs = {fontsFolder};
TreeMap<String, String> fonts = new TreeMap<>();
TTFAnalyzer analyzer = new TTFAnalyzer();
for (String fontdir : fontdirs) {
File dir = new File(fontdir);
if (!dir.exists()) continue;
File[] files = dir.listFiles();
if (files == null) continue;
for (File fileAndPath : files) {
String fontname = analyzer.getTtfFontName(fileAndPath.getAbsolutePath());
if (fontname != null && !fontname.isEmpty())
fonts.put(fileAndPath.getAbsolutePath(), fontname);
}
}
return fonts.isEmpty() ? null : fonts;
}
