Swing/FileHistory のバックアップ(No.7)

Terai Atsuhiro 2024-02-02 (金) 11:46:37

private FileHistory fh;

private JMenu fileHistory;
private void initHistory(){
  int hmax = 0;
  if(prefs.getBoolean("flag_history", true)){
    hmax = prefs.getInt("history_size", 6);
  }
  fh = new FileHistory(prefs, "style", hmax);
  JMenu fm = getMenu("file");
  if(fileHistory==null){

    fileHistory.setMnemonic('F');
    JMenuItem exit = getMenuItem("exit");
    fm.remove(exit);
    fm.add(fileHistory);
    fm.addSeparator();
    fm.add(exit);
  }else{
    fileHistory.removeAll();
  }
  Vector vl = fh.getModel();
  if(vl.size()<=0){
    noFile.setEnabled(false);
    fileHistory.add(noFile);
  }else{
    fm.remove(noFile);
    for(int i=0;i<vl.size();i++){
      String name = (String)vl.elementAt(i);
      String num  = Integer.toString(i+1);
      JMenuItem mi = new JMenuItem(new HistoryAction(new File(name)));
      mi.setText(num + ": "+ name);
      byte[] bt = num.getBytes();
      mi.setMnemonic((int) bt[0]);
      fileHistory.add(mi);
    }
  }
}
private void updateHistory(String str){
  fileHistory.removeAll();
  Vector vl = fh.getModel();
  for(int i=0;i<vl.size();i++){
    String name = (String)vl.elementAt(i);
    String num  = Integer.toString(i+1);
    JMenuItem mi = new JMenuItem(new HistoryAction(new File(name)));
    mi.setText(num + ": "+ name);
    byte[] bt = num.getBytes();
    mi.setMnemonic((int) bt[0]);
    fileHistory.add(mi, i);
  }
}
class HistoryAction extends AbstractAction{
  final private File file;
  public HistoryAction(File file_){
    super();
    file = file_;
  }
  public void actionPerformed(ActionEvent evt){

    //if(!isSaved()){


    //  java.awt.Toolkit.getDefaultToolkit().beep();
    //  int retValue = JOptionPane.showConfirmDialog((JPanel)null, 
    //  obj, "APP_NAME", JOptionPane.YES_NO_CANCEL_OPTION);
    //  if(retValue!=JOptionPane.YES_OPTION){
    //    return;
    //    }
    //}

    //Thread loader = new FileLoader(file);
    //loader.start();
  }
}

Swing/Preferences