Set locale properly to a JFileChooser

java, jfilechooser, locale, localization, swing

Solution

Looks like a bug in the acceptAllFilter used by BasicFileChooserUI, it doesn't lookup the localized version of the text as it should:

// BasicFileChooserUI
/**
 * Returns the default accept all file filter
 */
public FileFilter getAcceptAllFileFilter(JFileChooser fc) {
    return acceptAllFileFilter;
}

// buggy acceptAllFilter: doens't respect locale
protected class AcceptAllFileFilter extends FileFilter {

    public AcceptAllFileFilter() {
    }

    public boolean accept(File f) {
        return true;
    }

    public String getDescription() {
        return UIManager.getString("FileChooser.acceptAllFileFilterText");
    }
}

This default is used if your model returns null. The only way out (that I see) is to let the model return a filter that does-the-right-thing, like f.i.:

protected class AcceptAllFileFilter extends FileFilter {

    private Locale locale;

    public AcceptAllFileFilter(Locale locale) {
        this.locale = locale;
    }

    @Override
    public boolean accept(File f) {
        return true;
    }

    @Override
    public String getDescription() {
        return UIManager.getString("FileChooser.acceptAllFileFilterText", locale);
    }
}

Problem

I'm having a little problem when I change Locale at runtime. The Goal I have to change the Locale of my application language according to a configuration file. This locale does not necessarily be the same of the host/OS locale nor the JVM default locale. Moreover, I can't modify `user.language` when I call the application. Then, I must do that at runtime. The Problem Summarizing my code, I read the configuration file and get the different options (including locale). After that, I initialize the application environment according to these configured options. After, I build my frame and starts the application life-cycle. ``` public static void main(String[] args) { File fichier; Ini ini; //Ini4J object Modele modele = new Modele(); //My Model class: it stores configuration and other stuff try { fichier = new File(Modele.CONFIGURATION); ini = new Ini(fichier); modele.setLocaleLang(ini.get(Modele.LOCALE, Modele.LANG, String.class)); // read more options } catch(InvalidFileFormatException e) { // exception processing } catch (IOException e) { // exception processing } finally { ini = null; fichier = null; } // More code JComponent.setDefaultLocale(modele.getLocaleLang()); // More initialization code MyFrame fenetre = new MyFrame(modele); fenetre.visualiser(); } ``` Well, during the life-cycle, you can open files. Obviously, I use a JFileChooser for that issue: ``` JFileChooser jfc = new JFileChooser(); jfc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); jfc.setFileFilter(modele.FILTRE_OUVRIR); jfc.showOpenDialog(null); ``` All the file chooser it's setted with the configured locale, but the type selector doesn't change. The following image shows the problem (OS Locale: es_ES, configured locale: fr_FR): As you can see, in the combobox "Fichiers de type": the option is showed in Spanish instead of French. Colud someone explain me the problem? Is something wrong in my code? Could be a problem due to I'm using a file filter? I thank you for any suggestion.

Original source

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