Java Code Examples for javax.swing.JPanel

@Override
public Component createPageComponent() {
    JPanel panel = new JPanel(new BorderLayout(4, 4));
    panel.setBorder(new EmptyBorder(4, 4, 4, 4));
    panel.add(new JLabel("Available layers:"), BorderLayout.NORTH);

    LayerSourcePageContext context = getContext();
    modelCRS = (CoordinateReferenceSystem) context.getLayerContext().getCoordinateReferenceSystem();

    WMSCapabilities wmsCapabilities = (WMSCapabilities) context.getPropertyValue(
            WmsLayerSource.PROPERTY_NAME_WMS_CAPABILITIES);
    layerTree = new JTree(new WmsTreeModel(wmsCapabilities.getLayer()));
    layerTree.setRootVisible(false);
    layerTree.setShowsRootHandles(true);
    layerTree.setExpandsSelectedPaths(true);
    layerTree.setCellRenderer(new MyDefaultTreeCellRenderer());
    layerTree.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
    layerTree.getSelectionModel().addTreeSelectionListener(new LayerTreeSelectionListener());
    panel.add(new JScrollPane(layerTree), BorderLayout.CENTER);
    infoLabel = new JLabel(" ");
    panel.add(infoLabel, BorderLayout.SOUTH);
    getContext().setPropertyValue(WmsLayerSource.PROPERTY_NAME_SELECTED_LAYER, null);
    return panel;
}
 

/**
 * This method initializes this
 *
 * @return void
 */
private void initialize() {
    double[][] size = {{5, TableLayout.FILL, 5},
            {5, TableLayout.FILL, 5}};
    this.setLayout(new TableLayout(size));
    final GridLayout gridLayout3 = new GridLayout();
    JPanel child = new JPanel(gridLayout3);
    this.setSize(351, 105);
    gridLayout3.setRows(3);
    gridLayout3.setColumns(2);
    gridLayout3.setHgap(5);
    gridLayout3.setVgap(5);
    child.add(getJRadioButton(), null);
    child.add(getJRadioButton1(), null);
    child.add(getJRadioButton2(), null);
    child.add(getJRadioButton3(), null);
    child.add(getJRadioButton4(), null);
    child.add(getJTextField(), null);
    this.add(child, "1,1");
}
 

@Override
protected void validate(XMLDecoder decoder) {
    JPanel panel = (JPanel) decoder.readObject();
    if (2 != panel.getComponents().length) {
        throw new Error("unexpected component count");
    }
    JButton button = (JButton) panel.getComponents()[0];
    if (!button.getText().equals("button")) { // NON-NLS: hardcoded in XML
        throw new Error("unexpected button text");
    }
    if (SwingConstants.CENTER != button.getVerticalAlignment()) {
        throw new Error("unexpected vertical alignment");
    }
    JLabel label = (JLabel) panel.getComponents()[1];
    if (!label.getText().equals("label")) { // NON-NLS: hardcoded in XML
        throw new Error("unexpected label text");
    }
    if (button != label.getLabelFor()) {
        throw new Error("unexpected component");
    }
}
 

private JPanel createListView () {
    JPanel panel = new JPanel();
    // Defined size in #36907 - surrounding controls will add to this size
    // and result is desired 540x400. Note that we can't hardcode size of
    // whole dialog to work correctly with different font size
    panel.setPreferredSize(new Dimension(375, 232));
    panel.setLayout(new BorderLayout());
    listView = new ListView();
    // proper border for the view
    listView.setBorder((Border)UIManager.get("Nb.ScrollPane.border")); // NOI18N
    listView.setPopupAllowed(false);
    listView.getAccessibleContext().setAccessibleDescription(NbBundle.getMessage(DocumentsDlg.class, "ACSD_ListView"));
    //view.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    listView.getInputMap( JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT ).put( KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0), "closeSelected") ;//NOI18N
    listView.getActionMap().put( "closeSelected", new AbstractAction() {//NOI18N
        @Override
        public void actionPerformed( ActionEvent e ) {
            closeDocuments(e );
        }

    });
    panel.add(listView, BorderLayout.CENTER);
    return panel;
}
 

private JPanel createButtonBar()
	{
		_closeBtn.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent evt)
			{
				setVisible(false);
			}
		});

		final ButtonBarBuilder builder = new ButtonBarBuilder();
		builder.addGlue();
//		builder.addGridded(new JButton("Alter"));
//		builder.addRelatedGap();
		builder.addGridded(_closeBtn);

		return builder.getPanel();
	}
 

public void refreshOptions() {
    panOptions.removeAll();
    optionComps = new HashMap<>();

    for (Enumeration<IOptionGroup> i = options.getGroups(); i.hasMoreElements();) {
        IOptionGroup group = i.nextElement();

        JPanel groupPanel = addGroup(group);

        for (Enumeration<IOption> j = group.getOptions(); j.hasMoreElements();) {
            IOption option = j.nextElement();
            addOption(groupPanel, option);
        }
    }

    addSearchPanel();

    // Make the width accomadate the longest game option label
    // without needing to scroll horizontally.
    setSize(Math.max(getSize().width, maxOptionWidth + 30), Math.max(getSize().height, 400));

    validate();
}
 

private Component getReplacemetPanel() {
    JPanel group = new JPanel(new GridLayout(0, 1));
    group.setBorder(BorderFactory.createTitledBorder(ResourceLoader
            .getString("ArrowReplacementType.name")));
    group.add(safe = new JRadioButton("ArrowReplacementType.safe"));
    group.add(children = new JRadioButton("ArrowReplacementType.branching"));
    group.add(all = new JRadioButton("ArrowReplacementType.everywhere"));
    safe.setSelected(true);

    ButtonGroup g = new ButtonGroup();
    g.add(children);
    g.add(all);
    g.add(safe);

    setReplaceEnable(false);

    return group;
}
 

protected CategorySupport(String mimeType, Defaults.Provider provider, Preferences preferences, String id,
        JPanel panel, String previewText, String[]... forcedOptions) {
    this.mimeType = mimeType;
    this.provider = provider;
    this.preferences = preferences;
    this.id = id;
    this.panel = panel;
    this.previewText = previewText != null ? previewText : NbBundle.getMessage(FmtOptions.class, "SAMPLE_Default"); //NOI18N

    // Scan the panel for its components
    scan(panel, components);

    // Initialize the preview preferences
    Preferences forcedPrefs = new PreviewPreferences();
    for (String[] option : forcedOptions) {
        forcedPrefs.put( option[0], option[1]);
    }
    this.previewPrefs = new ProxyPreferences(preferences, forcedPrefs);

    // Load and hook up all the components
    loadFrom(preferences);
    addListeners();
}
 

protected void initUi() {
    // Common
    buttonShowView =
            new JToggleButton(
                    new ImageIcon(
                            HttpPanelComponentInterface.class.getResource(
                                    ExtensionPlugNHack.CLIENT_ACTIVE_ICON_RESOURCE)));

    buttonShowView.setToolTipText(BUTTON_TOOL_TIP);

    panelOptions = new JPanel();
    panelOptions.add(views.getSelectableViewsComponent());

    informationLabel = new JLabel();
    panelMoreOptions = new JPanel();
    panelMoreOptions.add(informationLabel);

    initViews();

    // All
    panelMain = new JPanel(new BorderLayout());
    panelMain.add(views.getViewsPanel());

    setSelected(false);
}
 

private JPanel createHeaderPanel(String title, String type, boolean largePadding, ActionListener actionListener)
{
	JPanel panel = new JPanel(new BorderLayout());
	panel.setBorder(new EmptyBorder(largePadding ? 11 : 0, 0, 0, 0));
	panel.setBackground(ColorScheme.DARK_GRAY_COLOR);

	JLabel headerLabel = new JLabel(title);
	headerLabel.setForeground(Color.WHITE);
	headerLabel.setFont(FontManager.getRunescapeSmallFont());
	panel.add(headerLabel, BorderLayout.CENTER);

	JButton addButton = new JButton(ADD_ICON);
	addButton.setRolloverIcon(ADD_ICON_HOVER);
	SwingUtil.removeButtonDecorations(addButton);
	addButton.setPreferredSize(new Dimension(14, 14));
	addButton.setToolTipText("Add a " + type);
	addButton.addActionListener(actionListener);
	panel.add(addButton, BorderLayout.EAST);

	return panel;
}
 

public InstrumentBrowser(InstrumentLibrary library) {
    this.library = library;
    JPanel horizontalPanel = new JPanel();
    horizontalPanel.setLayout(new GridLayout(1, 2));

    final JList<VoiceDescription> instrumentList = new JList<VoiceDescription>(library.getVoiceDescriptions());
    setupList(instrumentList);
    instrumentList.addListSelectionListener(new ListSelectionListener() {
        @Override
        public void valueChanged(ListSelectionEvent e) {
            if (e.getValueIsAdjusting() == false) {
                int n = instrumentList.getSelectedIndex();
                if (n >= 0) {
                    showPresetList(n);
                }
            }
        }
    });

    JScrollPane listScroller1 = new JScrollPane(instrumentList);
    listScroller1.setPreferredSize(new Dimension(250, 120));
    add(listScroller1);

    instrumentList.setSelectedIndex(0);
}
 

public AttributeEditorPanel() {
    super(new BorderLayout());
    okc = new JPanel(new GridLayout(1, 3, 5, 0));

    JButton ok = new JButton(okAction);

    cancel = new JButton(cancelAction);

    apply = new JButton(applyAction);

    addOk(ok, okc);
    okc.add(apply);
    okc.add(cancel);
    JPanel panel = new JPanel(new FlowLayout(FlowLayout.RIGHT, 5, 5));
    panel.add(okc);
    this.add(panel, BorderLayout.SOUTH);
    setAttributeEditor(null, null, null, null, false, null);
}
 

protected JPanel createDefaultFieldsPanel() {
    JPanel fieldsPanel = new JPanel();

    GroupLayout layout = new GroupLayout(fieldsPanel);
    fieldsPanel.setLayout(layout);
    layout.setAutoCreateGaps(true);

    layout.setHorizontalGroup(
            layout.createSequentialGroup()
                    .addComponent(getCharsetLabel())
                    .addComponent(getCharsetComboBox()));

    layout.setVerticalGroup(
            layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
                    .addComponent(getCharsetLabel())
                    .addComponent(getCharsetComboBox()));
    return fieldsPanel;
}
 

public static void main(String[] args) throws Exception {
    UIManager.setLookAndFeel(new MetalLookAndFeel());

    ThreadGroup group = new ThreadGroup("$$$");
    Thread thread = new Thread(group, new Test6657026());
    thread.start();
    thread.join();

    new JInternalFrame().setContentPane(new JPanel());
}
 

public SchemeDisplay(String title){
    setTitle(".:: "+title+" SCHEME-MANAGEMENT CONSOLE ::.");
    setSize(400,400);

    JPanel panel = new JPanel();
    setContentPane(panel);
    panel.setLayout(new BoxLayout(panel,BoxLayout.Y_AXIS));

    JPanel p1 = new JPanel();
    p1.add(new JLabel("Scheme name"));
    schemeName = new JTextField(10);
    p1.add(schemeName);
    panel.add(p1);

    JPanel p2 = new JPanel();
    commitMission = new JButton("commitMission");
    missionToCommit = new JTextField(10);
    p2.add(commitMission);
    p2.add(missionToCommit);
    panel.add(p2);

    JPanel p3 = new JPanel();
    leaveMission = new JButton("leaveMission");
    missionToLeave = new JTextField(10);
    p3.add(leaveMission);
    p3.add(missionToLeave);
    panel.add(p3);

    JPanel p4 = new JPanel();
    goalAchieved = new JButton("goalAchieved");
    goalToAchieve = new JTextField(10);
    p4.add(goalAchieved);
    p4.add(goalToAchieve);
    panel.add(p4);

}
 

static Component makeHorizontalStrut(JComponent compA,
                                          JComponent compB,
                                          ComponentPlacement relatedUnrelated,
                                          JPanel parent) {
        int width = LayoutStyle.getInstance().getPreferredGap(
                            compA,
                            compB,
                            relatedUnrelated,
                            WEST,
                            parent);
        return Box.createHorizontalStrut(width);
}
 

private void addOutputPanel(OutputPanelModel outputPanelModel, int tabIndex) {
    Component component = getTabbedPane().getComponentAt(tabIndex);
    if (component instanceof JPanel) {
        JPanel parentPanel = (JPanel) component;
        TabModel foundTab = getTabByIndex(tabIndex);
        foundTab.getOutputPanels().add(outputPanelModel);
        ZapTextArea outputField = newField(false);
        addField(parentPanel, outputField, createOutputPanelTitle(outputPanelModel));
        updateEncodeDecodeField(outputField, outputPanelModel);
    }
}
 

public final static void main(String[] args){
	System.out.println("draw wedges");
	
	JPanel panel = new CheckPolyCirculinearCurve2DGetParallel2();
	panel.setPreferredSize(new Dimension(500, 400));
	JFrame frame = new JFrame("Draw parallel polyline");
	frame.setContentPane(panel);
	frame.pack();
	frame.setVisible(true);		
}
 

private void initGUI() {
	setLayout(new BorderLayout(0, 0));
	calc = new MTGDeckManager();
	table = new JXTable();
	
	
	add(new JScrollPane(table), BorderLayout.CENTER);
	JPanel panel = new JPanel();
	panel.setBackground(Color.WHITE);
	add(panel, BorderLayout.NORTH);

	JLabel lblDrawProbability = new JLabel(MTGControler.getInstance().getLangService().getCapitalize("DRAW_PROBABILITIES"));
	lblDrawProbability.setFont(MTGControler.getInstance().getFont().deriveFont(Font.BOLD, 14));
	panel.add(lblDrawProbability);
}
 

/**
 * Adds a tab that contains the given component as well as the injection button on the bottom
 *
 * @param group
 * 		the group that is used for i18n and {@link #getInjectableParameters(ConnectionParameterGroupModel)}
 * @param component
 * 		the content of the tab without the inject functionality
 */
protected void addInjectableTab(ConnectionParameterGroupModel group, JComponent component) {
	JPanel panelAndInject = new JPanel(new GridBagLayout());
	GridBagConstraints c = new GridBagConstraints();
	if (component == null) {
		return;
	}

	c.anchor = GridBagConstraints.WEST;
	c.weighty = 1;
	c.weightx = 1;
	c.fill = GridBagConstraints.BOTH;
	c.gridx = 0;
	c.anchor = GridBagConstraints.NORTHWEST;
	panelAndInject.add(component, c);

	if (getConnectionModel().isEditable()) {
		c.weighty = 0;
		panelAndInject.add(new JSeparator(JSeparator.HORIZONTAL), c);

		c.anchor = GridBagConstraints.SOUTHWEST;
		panelAndInject.add(getInjectionPanel(() -> getInjectableParameters(group)), c);
	}

	String typeKey = getConnectionModel().getType();
	String groupKey = group.getName();
	String title = ConnectionI18N.getGroupName(typeKey, groupKey, ConnectionI18N.LABEL_SUFFIX, groupKey);
	String tip = ConnectionI18N.getGroupName(typeKey, groupKey, ConnectionI18N.TIP_SUFFIX, null);
	Icon icon = ConnectionI18N.getGroupIcon(typeKey, groupKey);

	getTabbedPane().addTab(title, icon, panelAndInject, tip);
}
 

private JPanel createUI() {
    this.rounded = new JLabel("ROUNDED"); // NON-NLS: the label for rounded border
    this.straight = new JLabel("STRAIGHT"); // NON-NLS: the label for straight border

    JPanel panel = new JPanel();
    panel.add(this.rounded);
    panel.add(this.straight);

    update(10);

    return panel;
}
 

/**
 * {@inheritDoc}
 */
public JPanel getPanel(String name) {
	Object bean = context.getBean(name);
	if (bean instanceof JPanel) {
		return (JPanel) bean;
	}
	return null;
}
 

private JComponent buildDatePickerTab() {
	JPanel panel = new JPanel();
	final DatePicker datePicker = new DatePicker();
	// datePicker.setDateFormat(new SimpleDateFormat("HH dd yyyy"));
	datePicker.setDateFormat(SimpleDateFormat.getDateTimeInstance());
	// datePicker.setStripTime(false);
	datePicker.setEnabled(false);
	datePicker.setKeepTime(true);
	datePicker.setStripTime(false);
	datePicker.setShowNumberOfWeek(true);
	// datePicker.setEnabled(false);
	// datePicker.setPickerStyle(DatePicker.PICKER_STYLE_BUTTON);
	// datePicker.showButtonOnly(false);
	// datePicker.setToolTipText("hello!!!!");
	// datePicker.setShowNumberOfWeek(true);
	
	Map ov = new HashMap();

	ov.put(CalendarPane.COLOR_CALENDAR_GRID_FOREGROUND_ENABLED,
			Color.ORANGE);
	
	datePicker.setColorOverrideMap(ov);

	panel.setLayout(new GridBagLayout());
	panel.add(datePicker, new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0,
			GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(
					5, 5, 5, 5), 0, 0));

	datePicker.addActionListener(new ActionListener() {

		public void actionPerformed(ActionEvent e) {
			System.out.println("DatePicker:" + datePicker.getDate());

		}
	});

	return panel;

}
 

/**
 * popup panel to add url to playlist
 */
public void additionToPlayListPrompt() {

	if ((Settings.getLastPlayList() == null)
			|| Settings.getLastPlayList().isEmpty()) {
		JOptionPane.showMessageDialog(new JFrame(),
				"You do not have any playlist loaded!", "Uh oh",
				JOptionPane.ERROR_MESSAGE);
		return;
	}

	final JTextField urlField = new JTextField();
	urlField.addMouseListener(new ContextMenuMouseListener());
	urlField.addMouseListener(new MouseAdapter() {
		@Override
		public void mouseClicked(final MouseEvent e) {

		}
	});
	new GhostText("https://www.youtube.com/watch?v=TU3b1qyEGsE", urlField);
	urlField.setHorizontalAlignment(SwingConstants.CENTER);
	final JPanel panel = new JPanel(new GridLayout(0, 1));

	panel.add(new JLabel("Paste media url"));
	panel.add(urlField);

	final int result = JOptionPane.showConfirmDialog(null, panel,
			"Add to Playlist", JOptionPane.OK_CANCEL_OPTION,
			JOptionPane.PLAIN_MESSAGE);

	if (result == JOptionPane.OK_OPTION) {
		addUrlToPlayList(urlField.getText());
	} else {

	}

}
 

@SuppressWarnings("LeakingThisInConstructor")
WizardDialog(JFrame frame, boolean modal) {
    super(frame, "Embedded JFileChooser Demo", modal);

    cardLayout = new CardLayout();
    cardPanel = new JPanel(cardLayout);
    getContentPane().add(cardPanel, BorderLayout.CENTER);

    messageLabel = new JLabel("", JLabel.CENTER);
    cardPanel.add(chooser, "fileChooser");
    cardPanel.add(messageLabel, "label");
    cardLayout.show(cardPanel, "fileChooser");
    chooser.addActionListener(this);

    JPanel buttonPanel = new JPanel();
    backButton = new JButton("< Back");
    nextButton = new JButton("Next >");
    closeButton = new JButton("Close");

    buttonPanel.add(backButton);
    buttonPanel.add(nextButton);
    buttonPanel.add(closeButton);

    getContentPane().add(buttonPanel, BorderLayout.SOUTH);

    backButton.setEnabled(false);
    getRootPane().setDefaultButton(nextButton);

    backButton.addActionListener(this);
    nextButton.addActionListener(this);
    closeButton.addActionListener(this);

    pack();
    setLocationRelativeTo(frame);
}
 

@Test
public void shouldAddNewPanelAfterDisplayDetailsInvoked() {
    final XQueryDataSourceConfiguration cfg = new XQueryDataSourceConfiguration("name", XQueryDataSourceType.SAXON);
    final ConfigurationChangeListener listener = mock(ConfigurationChangeListener.class);

    GuiActionRunner.execute(new GuiTask() {
        protected void executeInEDT() {
            panel.displayDetails(cfg, listener);

        }
    });
    assertThat(panel.getComponents().length, is(1));
    verify(panel).add(isA(JPanel.class), eq(BorderLayout.NORTH));
}
 

private JPanel createUI() {
    this.rounded = new JLabel("ROUNDED"); // NON-NLS: the label for rounded border
    this.straight = new JLabel("STRAIGHT"); // NON-NLS: the label for straight border

    JPanel panel = new JPanel();
    panel.add(this.rounded);
    panel.add(this.straight);

    update(10);

    return panel;
}
 

public PasswordManager() {

		super(ApplicationFrame.getApplicationFrame(), "password_manager", ModalityType.MODELESS, new Object[0]);
		this.clone = new Wallet(Wallet.getInstance());

		credentialsModel = new CredentialsTableModel(clone);
		final JTable table = new JTable(credentialsModel);
		table.setAutoCreateRowSorter(true);
		((DefaultRowSorter<?, ?>) table.getRowSorter()).setMaxSortKeys(1);
		JScrollPane scrollPane = new ExtendedJScrollPane(table);
		scrollPane.setBorder(null);
		JPanel main = new JPanel(new BorderLayout());
		main.add(scrollPane, BorderLayout.CENTER);

		ResourceAction removePasswordAction = new ResourceAction("password_manager_remove_row") {

			private static final long serialVersionUID = 1L;

			@Override
			public void loggedActionPerformed(ActionEvent e) {
				int[] selectedTableRows = table.getSelectedRows();
				ArrayList<Integer> modelRows = new ArrayList<>(selectedTableRows.length);
				for (int i = 0; i <= selectedTableRows.length - 1; i++) {
					modelRows.add(table.getRowSorter().convertRowIndexToModel(selectedTableRows[i]));
				}
				Collections.sort(modelRows);
				for (int i = modelRows.size() - 1; i >= 0; i--) {
					credentialsModel.removeRow(modelRows.get(i));
				}
			}
		};

		JPanel buttonPanel = new JPanel(new BorderLayout());
		buttonPanel.add(makeButtonPanel(new JButton(removePasswordAction), makeOkButton("password_manager_save"),
				makeCancelButton()), BorderLayout.EAST);
		layoutDefault(main, buttonPanel, LARGE);
	}
 

private void installCustomizations(QOptionPane optionPane) {
	JLabel iconLabel = getIconLabel(optionPane);
	JTextArea mainText = getMainMessageTextArea(optionPane);
	JTextArea secondaryText = getSecondaryMessageTextArea(optionPane);
	JPanel footerContainer = getFooterContainer(optionPane);
	JSeparator footerSeparator = getFooterSeparator(optionPane);
	JPanel upperBody = getUpperBody(optionPane);

	installBorder(footerContainer,
			getInsets(optionPane, KEY_FOOTER_INSETS), new Color(0xffDDDDDD));
	installBorder(upperBody, getInsets(optionPane, KEY_UPPER_BODY_INSETS),
			new Color(0xDDffDD));
	installBorder(iconLabel, getInsets(optionPane, KEY_ICON_INSETS),
			new Color(0xffDDff));
	installBorder(mainText, getInsets(optionPane, KEY_MAIN_MESSAGE_INSETS),
			new Color(0xDDDDff));
	installBorder(secondaryText,
			getInsets(optionPane, KEY_SECONDARY_MESSAGE_INSETS), new Color(
					0xDDffff));

	Color separatorColor = getColor(optionPane, KEY_FOOTER_SEPARATOR_COLOR);
	footerSeparator.setVisible(separatorColor != null);
	footerSeparator.setUI(new LineSeparatorUI(separatorColor));

	mainText.setFont(getFont(optionPane, KEY_MAIN_MESSAGE_FONT));
	secondaryText.setFont(getFont(optionPane, KEY_SECONDARY_MESSAGE_FONT));
	mainText.setForeground(getColor(optionPane, KEY_MAIN_MESSAGE_COLOR));
	secondaryText.setForeground(getColor(optionPane,
			KEY_SECONDARY_MESSAGE_COLOR));
	mainText.setDisabledTextColor(getColor(optionPane,
			KEY_MAIN_MESSAGE_COLOR));
	secondaryText.setDisabledTextColor(getColor(optionPane,
			KEY_SECONDARY_MESSAGE_COLOR));

	updateMainMessage(optionPane);
	updateSecondaryMessage(optionPane);
	updateFooter(optionPane);
}
 

private HtmlPane createNoticePane(JPanel panel) {
    String docUrl = "https://docs.oracle.com/javase/8/docs/api/java/text/DecimalFormat.html";

    StringBuilder notice = new StringBuilder();
    notice.append("<html><body bgcolor='");
    notice.append(HtmlPane.toHexCode(panel.getBackground()));
    notice.append("'>");
    notice.append("<a href='").append(docUrl).append("'>");
    notice.append("Pattern format");
    notice.append("</a></body></html>");

    HtmlPane noticePane = new HtmlPane(notice.toString());
    noticePane.setBorder(BorderFactory.createEmptyBorder());
    return noticePane;
}