public void createPopupMenu() {
    menu = new JPopupMenu();
    for (int i = filenames.size() - 2, j = 0; i >= 0; i--, j++) {
      menu.add((String) filenames.elementAt(i));
      JMenuItem mi = (JMenuItem) menu.getComponent(j);
      mi.setFont(new Font("Arial", Font.PLAIN, 11));
      mi.addActionListener(this);
    }

    menu.pack();
    // setPopupLocation(200, 200);
  }
示例#2
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  /** Code completion. */
  private void complete() {
    if (selected()) return;

    // find first character
    final int caret = editor.pos(), startPos = editor.completionStart();
    final String prefix = string(substring(editor.text(), startPos, caret));
    if (prefix.isEmpty()) return;

    // find insertion candidates
    final TreeMap<String, String> tmp = new TreeMap<>();
    for (final Entry<String, String> entry : REPLACE.entrySet()) {
      final String key = entry.getKey();
      if (key.startsWith(prefix)) tmp.put(key, entry.getValue());
    }

    if (tmp.size() == 1) {
      // insert single candidate
      complete(tmp.values().iterator().next(), startPos);
    } else if (!tmp.isEmpty()) {
      // show popup menu
      final JPopupMenu pm = new JPopupMenu();
      final ActionListener al =
          new ActionListener() {
            @Override
            public void actionPerformed(final ActionEvent ae) {
              complete(ae.getActionCommand().replaceAll("^.*?\\] ", ""), startPos);
            }
          };

      for (final Entry<String, String> entry : tmp.entrySet()) {
        final JMenuItem mi = new JMenuItem("[" + entry.getKey() + "] " + entry.getValue());
        pm.add(mi);
        mi.addActionListener(al);
      }
      pm.addSeparator();
      final JMenuItem mi = new JMenuItem(Text.INPUT + Text.COLS + prefix);
      mi.setEnabled(false);
      pm.add(mi);

      final int[] cursor = rend.cursor();
      pm.show(this, cursor[0], cursor[1]);

      // highlight first entry
      final MenuElement[] me = {pm, (JMenuItem) pm.getComponent(0)};
      MenuSelectionManager.defaultManager().setSelectedPath(me);
    }
  }
示例#3
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 /**
  * set text to the specified item index
  *
  * @param index index
  */
 public void setText(int index) {
   JMenuItem item = (JMenuItem) popup.getComponent(index);
   setText(item.getText());
 } // setText()
示例#4
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 public void setEnabled(int index, boolean bEnabled) {
   JMenuItem item = (JMenuItem) popup.getComponent(index);
   if (item != null) item.setEnabled(bEnabled);
 }
示例#5
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 /** set default text */
 public void setDefaultText() {
   JMenuItem item = (JMenuItem) popup.getComponent(0);
   if (item != null) setText(item.getText());
 } // setDefaultText()