Java Code Examples for javax.swing.JComboBox#getItemCount()

/**
 * Returns information about component.
 */
@Override
public Hashtable<String, Object> getDump() {
    Hashtable<String, Object> result = super.getDump();
    JComboBox<?> jComboBox = (JComboBox<?>) getSource();
    Object selectedItem = jComboBox.getSelectedItem();
    if (selectedItem != null) {
        result.put(TEXT_DPROP, selectedItem.toString());
    }
    int itemCount = jComboBox.getItemCount();
    String[] items = new String[itemCount];
    for (int i = 0; i < itemCount; i++) {
        if (jComboBox.getItemAt(i) != null) {
            items[i] = jComboBox.getItemAt(i).toString();
        }
    }
    addToDump(result, ITEM_PREFIX_DPROP, items);
    return result;
}
 

protected static void initPlatformCombo(JComboBox combo) {
    if (combo == null){
        return;
    }
    if (combo.getItemCount() <= 0) {
        return;
    }
    boolean set = false;
    String idToSelect = ModuleUISettings.getDefault().getLastUsedPlatformID();
    for (int i = 0; i < combo.getItemCount(); i++) {
        if (((NbPlatform) combo.getItemAt(i)).getID().equals(idToSelect)) {
            combo.setSelectedIndex(i);
            set = true;
            break;
        }
    }
    if (!set) {
        NbPlatform defPlaf = NbPlatform.getDefaultPlatform();
        combo.setSelectedItem(defPlaf == null ? combo.getItemAt(0) : defPlaf);
    }
}
 

/**
 * Searches LayerItemPresenter combobox by the item's display name.
 */
private static String searchLIPCategoryCombo(final JComboBox lpCombo, final String displayName) {
    String path = null;
    for (int i = 0; i < lpCombo.getItemCount(); i++) {
        Object item = lpCombo.getItemAt(i);
        if (!(item instanceof LayerItemPresenter)) {
            continue;
        }
        LayerItemPresenter presenter = (LayerItemPresenter) lpCombo.getItemAt(i);
        if (displayName.equals(presenter.getDisplayName())) {
            path = presenter.getFullPath();
            break;
        }
    }
    return path;
}
 

protected List<String> getItems(JComboBoxOperator boxOperator){
    JComboBox box = (JComboBox) boxOperator.getSource();
    int boxSize = box.getItemCount();
    List<String> result = new ArrayList<String>(boxSize);
    for(int i = 0;i < boxSize; i++){
        result.add(box.getModel().getElementAt(i).toString());
    }
    return result;
}
 

public JComboBoxBinding(String property, JComboBox combo, int defaultValue) {
	if (property == null || combo == null) {
		throw new NullPointerException();
	}
	if (property.equals("")
			|| combo.getItemCount() == 0
			|| defaultValue < 0 || defaultValue >= combo.getItemCount()) {
		throw new IllegalArgumentException();
	}
	_property = property;
	_combo = combo;
	_defaultValue = defaultValue;
	_validColor = combo.getBackground();
}
 

private JComboBox<String> createOperatorCombo(final PropertyTable propertyTable) {
	List<Operator> allInnerOps = parentOperator.getAllInnerOperators();
	Vector<String> allOpNames = new Vector<String>();
	Iterator<Operator> i = allInnerOps.iterator();
	while (i.hasNext()) {
		allOpNames.add(i.next().getName());
	}
	Collections.sort(allOpNames);
	final JComboBox<String> combo = new JComboBox<>(allOpNames);
	combo.addItemListener(new ItemListener() {

		@Override
		public void itemStateChanged(ItemEvent e) {
			String operatorName = (String) combo.getSelectedItem();
			panel.remove(parameterCombo);
			parameterCombo = createParameterCombo(operatorName, propertyTable);
			panel.add(parameterCombo);
			fireParameterChangedEvent();
			fireEditingStopped();
		}
	});
	if (combo.getItemCount() == 0) {
		combo.addItem("add inner operators");
	} else {
		combo.setSelectedIndex(0);
	}
	return combo;
}
 

/**
 * Instantiates a new check box cell renderer.
 *
 * @param comboBox the combo box
 */
public ComboBoxCellRenderer(JComboBox<String> comboBox) {
    this.combo = new JComboBox<>();
    for (int i = 0; i < comboBox.getItemCount(); i++) {
        combo.addItem(comboBox.getItemAt(i));
    }
}
 

static void setSelected(JComboBox<?> combo, Object value) {
	for (int i = combo.getItemCount() - 1; i >= 0; i--) {
		ComboOption opt = (ComboOption) combo.getItemAt(i);
		if (opt.getValue().equals(value)) {
			combo.setSelectedItem(opt);
			return;
		}
	}
	combo.setSelectedItem(combo.getItemAt(0));
}
 

/**
 * Verify the contents of the JComboBox.
 *
 * @param box The {@code JComboBox} to verify.
 * @return True if all is well.
 */
private boolean verifyWholeBox(JComboBox<Integer> box) {
    final int n = box.getItemCount();
    for (int i = 0; i < n; i++) {
        Integer v = box.getItemAt(i);
        if (v < 0 || v > available) return false;
    }
    return true;
}
 

@SuppressWarnings("unchecked")
private static String requestPort() {
    JComboBox<String> portNameSelector = new JComboBox<>();
    portNameSelector.setModel(new DefaultComboBoxModel<String>());
    String[] portNames;
    if (SerialNativeInterface.getOsType() == SerialNativeInterface.OS_MAC_OS_X) {
        // for MAC OS default pattern of jssc library is too restrictive
        portNames = SerialPortList.getPortNames("/dev/", Pattern.compile("tty\\..*"));
    } else {
        portNames = SerialPortList.getPortNames();
    }
    for (String portName : portNames) {
        portNameSelector.addItem(portName);
    }
    if (portNameSelector.getItemCount() == 0) {
        JOptionPane.showMessageDialog(null, "Cannot find any serial port", "Error", JOptionPane.ERROR_MESSAGE);
        System.exit(1);
    }
    JPanel panel = new JPanel();
    panel.setLayout(new GridBagLayout());
    panel.add(new JLabel("Port "));
    panel.add(portNameSelector);
    if (JOptionPane.showConfirmDialog(null, panel, "Select the port", JOptionPane.OK_CANCEL_OPTION) == JOptionPane.OK_OPTION) {
        return portNameSelector.getSelectedItem().toString();
    } else {
        System.exit(0);
    }
    return "";
}
 

private static boolean contains(JComboBox<String> urlField, String url) {
    for (int i = 0; i < urlField.getItemCount(); i++) {
        if (urlField.getItemAt(i).equals(url)) {
            return true;
        }
    }
    return false;
}
 

public JComboBoxBinding(String property, JComboBox combo, int defaultValue) {
	if (property == null || combo == null) {
		throw new NullPointerException();
	}
	if (property.equals("")
			|| combo.getItemCount() == 0
			|| defaultValue < 0 || defaultValue >= combo.getItemCount()) {
		throw new IllegalArgumentException();
	}
	_property = property;
	_combo = combo;
	_defaultValue = defaultValue;
	_validColor = combo.getBackground();
}
 

/**
 * Sets the selected item in connection combo box.
 */
private void setSelectedConnection(){
    DatabaseConnection connection = ProviderUtil.getConnection(persistenceUnit);
    if (connection != null){
        jdbcComboBox.setSelectedItem(connection);
    } else {
        // custom connection (i.e. connection not registered in netbeans)
        Properties props = persistenceUnit.getProperties();
        if (props != null){
            Property[] properties = props.getProperty2();
            String url = null;
            ArrayList<Provider> providers = new ArrayList<Provider>();
            JComboBox activeCB = providerCombo.isVisible() ? providerCombo : libraryComboBox;
            for(int i=0; i<activeCB.getItemCount(); i++){
                Object obj = activeCB.getItemAt(i);
                if(obj instanceof Provider){
                    providers.add((Provider) obj);
                }
            }
            Provider provider = ProviderUtil.getProvider(persistenceUnit, providers.toArray(new Provider[]{}));
            for (int i = 0; i < properties.length; i++) {
                String key = properties[i].getName();
                if (provider.getJdbcUrl().equals(key)) {
                    url = properties[i].getValue();
                    break;
                }
            }
            if (url == null) {
                url = NbBundle.getMessage(PersistenceUnitPanel.class, "LBL_CustomConnection");//NOI18N
            }
            jdbcComboBox.addItem(url);
            jdbcComboBox.setSelectedItem(url);
        }
    }
}
 

/**
 * Perform the task.
 */
@Override
public void run() {
  synchronized(statsHandler) {
    if (statsHandler.dataHolderMap.get(driver.getUuid()) != null) {
      final ConnectionDataHolder cdh = statsHandler.dataHolderMap.remove(driver.getUuid());
      if (cdh != null) cdh.close();
    }
  }
  JComboBox<?> box = null;
  while (statsHandler.getClientHandler().getServerListOption() == null) goToSleep(50L);
  final JPPFClientConnection c = driver.getConnection();
  synchronized(statsHandler) {
    if (debugEnabled) log.debug("removing client connection " + c.getName() + " from driver combo box");
    box = ((ComboBoxOption) statsHandler.getClientHandler().getServerListOption()).getComboBox();
    final int count = box.getItemCount();
    int idx = -1;
    for (int i=0; i<count; i++) {
      final Object o = box.getItemAt(i);
      if (c.equals(o)) {
        box.removeItemAt(i);
        idx = i;
        break;
      }
    }
    if ((idx >= 0) && (box.getItemCount() > 0)) {
      if ((statsHandler.getClientHandler().currentDriver == null) || c.equals(statsHandler.getClientHandler().currentDriver.getConnection())) {
        final int n = Math.min(idx, box.getItemCount()-1);
        final TopologyDriver item = (TopologyDriver) box.getItemAt(n);
        statsHandler.getClientHandler().currentDriver = item;
        box.setSelectedItem(item);
      }
    }
  }
}
 

private void updateEndDimSetS(JComboBox CB1, JComboBox CB2) {
    CB2.removeAllItems();
    for (int i = 0; i < CB1.getItemCount(); i++) {
        CB2.addItem(CB1.getItemAt(i));
    }
    CB2.setSelectedIndex(CB2.getItemCount() - 1);
}
 

private void updateEndDimSetS(JComboBox CB1, JComboBox CB2) {
    CB2.removeAllItems();
    for (int i = 0; i < CB1.getItemCount(); i++) {
        CB2.addItem(CB1.getItemAt(i));
    }
    CB2.setSelectedIndex(CB2.getItemCount() - 1);
}
 

protected int getScrollBarWidth(BasicComboPopup popup, JScrollPane scrollPane) {
  // I can't find any property on the scrollBar to determine if it will be
  // displayed or not so use brute force to determine this.
  JComboBox<?> comboBox = (JComboBox) popup.getInvoker();

  if (comboBox.getItemCount() > comboBox.getMaximumRowCount()) {
    return scrollPane.getVerticalScrollBar().getPreferredSize().width;
  }
  else {
    return 0;
  }
}
 

private Optional<SourceSoundPort> showSelectSoundLineDialog(
    final List<SourceSoundPort> variants) {
  assertUiThread();
  final JPanel panel = new JPanel(new FlowLayout(FlowLayout.TRAILING));
  final String previouslySelectedDevice = AppOptions.getInstance().getLastSelectedAudioDevice();

  final JComboBox<SourceSoundPort> comboBox =
      new JComboBox<>(variants.toArray(new SourceSoundPort[0]));
  comboBox.setPrototypeDisplayValue(
      new SourceSoundPort(null, "some very long device name to be shown", null));
  comboBox.addActionListener(x -> {
    comboBox.setToolTipText(comboBox.getSelectedItem().toString());
  });
  comboBox.setToolTipText(comboBox.getSelectedItem().toString());

  int index = -1;
  for (int i = 0; i < comboBox.getItemCount(); i++) {
    if (comboBox.getItemAt(i).toString().equals(previouslySelectedDevice)) {
      index = i;
      break;
    }
  }

  comboBox.setSelectedIndex(Math.max(0, index));

  panel.add(new JLabel("Sound device:"));
  panel.add(comboBox);
  if (JOptionPane.showConfirmDialog(
      this,
      panel,
      "Select sound device",
      JOptionPane.OK_CANCEL_OPTION,
      JOptionPane.PLAIN_MESSAGE
  ) == JOptionPane.OK_OPTION) {
    final SourceSoundPort selected = (SourceSoundPort) comboBox.getSelectedItem();
    AppOptions.getInstance().setLastSelectedAudioDevice(selected.toString());
    return Optional.ofNullable(selected);
  } else {
    return Optional.empty();
  }

}
 

/**
	 * Updates the subdirectory combo box.
	 * The data depends on the following options:
	 *  - client.getSubmissionDirectory()
	 *  - client.getOptions().getSuffixes()
	 *  - client.getOptions().isReadSubdirs() (recurse)
	 */
    private void updateSubdirCombo() {
    	updatingSubDirCB = true;
    	
    	JComboBox<String> cb = getJSubdirCB();
    	String selItem = (String) cb.getSelectedItem();       // will be null, if none selected
        cb.removeAllItems();
        cb.addItem(Messages.getString("OptionPanel.none")); //$NON-NLS-1$
        
		File[] files = (new File(client.getSubmissionDirectory())).listFiles();
		if(files == null) {
			System.out.println("No file found");
			System.out.println("Directory: " + jSubmissionDirField.getText());
		}
		genAOSuffixes = getSuffixes();
		if(genAOSuffixes != null) {
			int addedItems = 1, selIndex = 0;
			for(int i = 0; i < files.length; i++) {
				if(files[i].isDirectory()) {
					File[] subfiles = files[i].listFiles();
subfilesloop:		for(int j = 0; j < subfiles.length; j++) {
						if(subfiles[j].isDirectory()) {
		                    // Check whether this directory is already in subdircb
							String dirname = subfiles[j].getName();
		                    
							for(int k = 0; k < cb.getItemCount(); k++) {
								if(dirname.equals(cb.getItemAt(k).toString()))
									continue subfilesloop;		// already in combo box
							}

							if(hasDirValidFiles(subfiles[j])) {
								cb.addItem(dirname);
								if(dirname.equals(selItem)) selIndex = addedItems;
								addedItems++;
							}
						}
					}
				}
			}
			cb.setSelectedIndex(selIndex);
		}
		
		updatingSubDirCB = false;
    }
 

public static void getLocalAddr() throws InterruptedException, PcapNativeException, UnknownHostException, SocketException,
		ClassNotFoundException, InstantiationException, IllegalAccessException, UnsupportedLookAndFeelException {
	if (Settings.getDouble("autoload", 0) == 1) {
		addr = InetAddress.getByName(Settings.get("addr", ""));
		return;
	}

	UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
	final JFrame frame = new JFrame("Network Device");
	frame.setFocusableWindowState(true);

	final JLabel ipLab = new JLabel("Select LAN IP obtained from Network Settings:", JLabel.LEFT);
	final JComboBox<String> lanIP = new JComboBox<String>();
	final JLabel lanLabel = new JLabel("If your device IP isn't in the dropdown, provide it below.");
	final JTextField lanText = new JTextField(Settings.get("addr", ""));

	ArrayList<InetAddress> inets = new ArrayList<InetAddress>();

	for (PcapNetworkInterface i : Pcaps.findAllDevs()) {
		for (PcapAddress x : i.getAddresses()) {
			InetAddress xAddr = x.getAddress();
			if (xAddr != null && x.getNetmask() != null && !xAddr.toString().equals("/0.0.0.0")) {
				NetworkInterface inf = NetworkInterface.getByInetAddress(x.getAddress());
				if (inf != null && inf.isUp() && !inf.isVirtual()) {
					inets.add(xAddr);
					lanIP.addItem((lanIP.getItemCount() + 1) + " - " + inf.getDisplayName() + " ::: " + xAddr.getHostAddress());
					System.out.println("Found: " + lanIP.getItemCount() + " - " + inf.getDisplayName() + " ::: " + xAddr.getHostAddress());
				}
			}
		}
	}

	if (lanIP.getItemCount() == 0) {
		JOptionPane.showMessageDialog(null, "Unable to locate devices.\nPlease try running the program in Admin Mode.\nIf this does not work, you may need to reboot your computer.",
				"Error", JOptionPane.ERROR_MESSAGE);
		System.exit(1);
	}
	lanIP.setFocusable(false);
	final JButton start = new JButton("Start");
	start.addActionListener(e -> {
		try {
			if (lanText.getText().length() >= 7 && !lanText.getText().equals("0.0.0.0")) { // 7 is because the minimum field is 0.0.0.0
				addr = InetAddress.getByName(lanText.getText());
				System.out.println("Using IP from textfield: " + lanText.getText());
			} else {
				addr = inets.get(lanIP.getSelectedIndex());
				System.out.println("Using device from dropdown: " + lanIP.getSelectedItem());
			}
			Settings.set("addr", addr.getHostAddress().replaceAll("/", ""));
			frame.setVisible(false);
			frame.dispose();
		} catch (UnknownHostException e1) {
			e1.printStackTrace();
		}
	});

	frame.setLayout(new GridLayout(5, 1));
	frame.add(ipLab);
	frame.add(lanIP);
	frame.add(lanLabel);
	frame.add(lanText);
	frame.add(start);
	frame.setAlwaysOnTop(true);
	frame.pack();
	frame.setLocationRelativeTo(null);
	frame.setVisible(true);
	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

	while (frame.isVisible())
		Thread.sleep(10);
}