JPanel を拡張するクラスがあり、このパネル内に多くの textField を追加しました。すべての textField に DocumentListener を追加して、テキストの変更を検出し、txtField の背景を赤に変更したいと考えています。以下のようなことをしましたが、まだ機能していません。
誰かがそれを解決するのを助けることができますか、それとも新しい提案は大歓迎ですか?
public class MainDetailPanel extends JPanel implements DocumentListener{
public JLabel lblS_DWLDIRPRDPIC,lblL_DWLDIRPRD,lblS_UPLDIR,lblL_UPLDIR,lblS_DWLDIRPRD;
public JLabel lblFTP_DEFDIR,lblFTP_SERVER,lblFTP_POORT,lblFTP_USER,lblFTP_PASWOORD,lblL_CFDIR;
public JLabel lblL_DWLDIRPRDPIC,lblS_CFDIR,lblS_CFNAME,lblS_DWLNAMEPRD,lblS_DWLNAMEPRDPIC;
public JTextField txtL_DWLDIRPRD,txtS_DWLDIRPRDPIC,txtL_UPLDIR,txtS_DWLNAMEPRDPIC,txtL_CFDIR;
public JTextField txtFTP_DEFDIR,txtFTP_SERVER,txtFTP_POORT,txtFTP_USER,txtFTP_PASWOORD,txtS_UPLDIR;
public JTextField txtL_DWLDIRPRDPIC,txtS_CFDIR,txtS_CFNAME,txtS_DWLNAMEPRD,txtS_DWLDIRPRD;
public MainDetailPanel() {
createComponents();
layoutComponents();
}
private void createComponents() {
txtL_DWLDIRPRD = new JTextField(30);
txtL_DWLDIRPRD.getDocument().addDocumentListener(this);
txtS_DWLDIRPRDPIC = new JTextField(30);
txtL_UPLDIR = new JTextField(30);
txtS_DWLNAMEPRDPIC = new JTextField(30);
txtFTP_DEFDIR = new JTextField(30);
txtFTP_SERVER = new JTextField(30);
txtFTP_POORT = new JTextField(30);
txtFTP_USER = new JTextField(30);
txtFTP_PASWOORD = new JTextField(30);
txtL_CFDIR = new JTextField(30);
txtL_DWLDIRPRDPIC = new JTextField(30);
txtS_UPLDIR = new JTextField(30);
txtS_CFDIR = new JTextField(30);
txtS_CFNAME = new JTextField(30);
txtS_DWLNAMEPRD = new JTextField(30);
txtS_DWLDIRPRD = new JTextField(30);
lblFTP_DEFDIR = new JLabel("FTP_DEFDIR");
lblFTP_SERVER = new JLabel("FTP_SERVER");
lblFTP_POORT = new JLabel("FTP_POORT");
lblFTP_USER = new JLabel("FTP_USER");
lblFTP_PASWOORD = new JLabel("FTP_PASWOORD");
lblL_CFDIR = new JLabel("L_CFDIR");
lblL_UPLDIR = new JLabel("L_UPLDIR");
lblL_DWLDIRPRDPIC = new JLabel("L_DWLDIRPRDPIC");
lblS_CFDIR = new JLabel("S_CFDIR");
lblS_CFNAME = new JLabel("S_CFNAME");
lblS_DWLNAMEPRD = new JLabel("S_DWLNAMEPRD");
lblS_DWLDIRPRD = new JLabel("S_DWLDIRPRD");
lblS_DWLNAMEPRDPIC = new JLabel("S_DWLNAMEPRDPIC");
lblS_UPLDIR = new JLabel("S_UPLDIR");
lblS_DWLDIRPRDPIC = new JLabel("lblS_DWLDIRPRDPIC");
lblL_DWLDIRPRD = new JLabel("lblL_DWLDIRPRD");
}
private void layoutComponents() {
setLayout(new ParagraphLayout());
add(lblFTP_DEFDIR, ParagraphLayout.NEW_PARAGRAPH);
add(txtFTP_DEFDIR);
add(lblFTP_SERVER, ParagraphLayout.NEW_PARAGRAPH);
add(txtFTP_SERVER);
add(lblFTP_POORT, ParagraphLayout.NEW_PARAGRAPH);
add(txtFTP_POORT);
add(lblFTP_USER, ParagraphLayout.NEW_PARAGRAPH);
add(txtFTP_USER);
add(lblFTP_PASWOORD, ParagraphLayout.NEW_PARAGRAPH);
add(txtFTP_PASWOORD);
add(lblL_CFDIR, ParagraphLayout.NEW_PARAGRAPH);
add(txtL_CFDIR);
add(lblL_UPLDIR, ParagraphLayout.NEW_PARAGRAPH);
add(txtL_UPLDIR);
add(lblL_DWLDIRPRD, ParagraphLayout.NEW_PARAGRAPH);
add(txtL_DWLDIRPRD);
add(lblL_DWLDIRPRDPIC, ParagraphLayout.NEW_PARAGRAPH);
add(txtL_DWLDIRPRDPIC);
add(lblS_UPLDIR, ParagraphLayout.NEW_PARAGRAPH);
add(txtS_UPLDIR);
add(lblS_CFDIR, ParagraphLayout.NEW_PARAGRAPH);
add(txtS_CFDIR);
add(lblS_CFNAME, ParagraphLayout.NEW_PARAGRAPH);
add(txtS_CFNAME);
add(lblS_DWLNAMEPRD, ParagraphLayout.NEW_PARAGRAPH);
add(txtS_DWLNAMEPRD);
add(lblS_DWLDIRPRD, ParagraphLayout.NEW_PARAGRAPH);
add(txtS_DWLDIRPRD);
add(lblS_DWLNAMEPRDPIC, ParagraphLayout.NEW_PARAGRAPH);
add(txtS_DWLNAMEPRDPIC);
add(lblS_DWLDIRPRDPIC, ParagraphLayout.NEW_PARAGRAPH);
add(txtS_DWLDIRPRDPIC);
}
public void insertUpdate(DocumentEvent e) {
((JTextField)e.getDocument()).setBackground(Color.red);
}
public void removeUpdate(DocumentEvent e) {
((JTextField)e.getDocument()).setBackground(Color.red);
}
public void changedUpdate(DocumentEvent e) {
((JTextField)e.getDocument()).setBackground(Color.red);
}
}