Disposable tabbed pane redrawing

Question

Hi, i'm using disposable tabbed panes (with close button) in my program and i'm using following method to update their titles according to what user entered:
//this is class extending JPanel
public void updatePanelTitle(String newTitle) {
        MainPanel panel = (MainPanel) getParent(); //MainPanel extends JTabbedPane
        panel.setTitleAt(panel.getComponentZOrder(this)-1, newTitle);
        repaint();
    }Point is the title gets changed but the size of panel label does not. However, when i mouse-over the close button there, it gets changed to the size of the text.
@Override
        public void mouseEntered(MouseEvent e) {
            Component component = e.getComponent();
            if (component instanceof AbstractButton) {
                AbstractButton button = (AbstractButton) component;
                button.setBorderPainted(true);
        }setBorderPainted calls inside the repaint method.
Can anyone give a clue why it is not working or how to fix it?
Regards,
Marek

Answer 1

Well its quite big but if it helps, this is the panel class:
package presentationTier.view;
import com.bbgroup.ui.Console;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.border.Border;
import javax.swing.text.BadLocationException;
import presentationTier.Model.Properties;
import presentationTier.Model.PropertyInterface;
import presentationTier.Model.StandardInputOutput;
import presentationTier.controller.ConfirmListGeneratorAction;
import presentationTier.controller.ConfirmSearchReplaceAction;
import presentationTier.controller.OpenBrowseDialogAction;
* @author marek
public class ListGeneratorPanel extends JPanel implements StandardInputOutput, PropertyInterface {
    private JLabel labStartPath,  labExtensions;
    private JTextField txtStartPath,  txtExtensions;
    private JButton butBrowse,  butGo;
    private Console console;
    private GridBagConstraints c;
    private Insets labelInsets,  normalInsets;
    public ListGeneratorPanel() {
        super(new GridBagLayout());
        initComponents();
        borderCompononets(BorderFactory.createLoweredBevelBorder());
        resetConstraints();
        c.gridx = 0;
        c.gridy = 0;
        c.insets = labelInsets;
        add(labStartPath, c);
        c.gridx = 1;
        //c.gridwidth = 1;
        c.weightx = 1;
        c.insets = normalInsets;
        add(txtStartPath, c);
        c.gridx = 2;
        //c.gridwidth = 1;
        c.weightx = 0;
        add(butBrowse, c);
        c.gridx = 0;
        c.gridy = 1;
        c.weightx = 0;
        c.insets = labelInsets;
        add(labExtensions, c);
        c.gridx = 1;
        //c.gridwidth = 3;
        c.weightx = 1;
        c.insets = normalInsets;
        add(txtExtensions, c);
        c.gridx = 2;
        c.gridwidth = 1;
        //c.gridheight = 1;
        c.weightx = 0;
        add(butGo, c);
        c.gridx = 0;
        c.gridy = 2;
        c.gridwidth = 5;
        c.weighty = 1;
        add(new JScrollPane(console), c);
        resetConstraints();
    private void initComponents() {
        c = new GridBagConstraints();
        console = new Console(true);
        labelInsets = new Insets(5, 5, 0, 0);
        normalInsets = new Insets(5, 5, 0, 5);
        labStartPath = new JLabel("Search under:");
        labExtensions = new JLabel("File types:");
        txtStartPath = new JTextField();
        txtExtensions = new JTextField();
        butBrowse = new JButton(new OpenBrowseDialogAction(this));
        butGo = new JButton(new ConfirmListGeneratorAction(this));
    private void borderCompononets(Border b) {
        getTxtStartPath().setBorder(b);
        getTxtExtensions().setBorder(b);
    private void resetConstraints() {
        c.ipadx = 0;
        c.ipady = 0;
        c.gridwidth = 1;
        c.gridheight = 1;
        c.weightx = 0;
        c.weighty = 0;
        c.fill = GridBagConstraints.BOTH;
        c.anchor = GridBagConstraints.FIRST_LINE_START;
        c.insets = normalInsets;
    public Properties createProperties() {
        Properties p = new Properties();
        p.setSout(this);
        p.setStartPath(getTxtStartPath().getText());
        p.setExtensions(getTxtExtensions().getText());
        return p;
     * @param line
     * @throws BadLocationException
    public void echo(String line) throws BadLocationException {
        getConsole().echo(line);
     * @param line
     * @param style
     * @throws BadLocationException
    public void echo(String line, String style) throws BadLocationException {
        getConsole().echo(line, style);
    public void drawSeparator() throws BadLocationException {
        getConsole().drawSeparator();
    public void passBrowsedFilePath(String browsedFilePath) {
        getTxtStartPath().setText(browsedFilePath);
    public void updatePanelTitle(String newTitle) {
        MainPanel panel = (MainPanel) getParent();
        panel.setTitleAt(panel.getComponentZOrder(this) - 1, "Generate: " + newTitle);
        updateUI();
        repaint();
    public Console getConsole() {
        return console;
    public JTextField getTxtStartPath() {
        return txtStartPath;
    public JTextField getTxtExtensions() {
        return txtExtensions;
}When you add instance of this to your JTabbedPane, you will get closeable Tabbed Pane with title you specified in addTab(title, component);
I implement method updatePanelTitle(String newTitle); to change the title of this tab when suer submits the data. These action controllers that call submitting and updating title are in controller package. Problem is that the title itself is changed when data are submitted but the <b>size of the tab is not adjusted to newTitles length.</b> It is just adjusted when i pull my mouse over the close button that implements action from previous post. It's in this class:
package com.bbgroup.ui;
import javax.swing.*;
import javax.swing.plaf.basic.BasicButtonUI;
import java.awt.*;
import java.awt.event.*;
* Component to be used as tabComponent;
* Contains a JLabel to show the text and
* a JButton to close the tab it belongs to
public class DisposableTabPanel extends JPanel {
    private final JTabbedPane pane;
    public DisposableTabPanel(final JTabbedPane pane) {
        //unset default FlowLayout' gaps
        super(new FlowLayout(FlowLayout.LEFT, 0, 0));
        if (pane == null) {
            throw new NullPointerException("TabbedPane is null");
        this.pane = pane;
        setOpaque(false);
        //make JLabel read titles from JTabbedPane
        JLabel label = new JLabel() {
            @Override
            public String getText() {
                int i = pane.indexOfTabComponent(DisposableTabPanel.this);
                if (i != -1) {
                    return pane.getTitleAt(i);
                return null;
        add(label);
        //add more space between the label and the button
        label.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 5));
        //tab button
        JButton button = new TabButton();
        add(button);
        //add more space to the top of the component
        setBorder(BorderFactory.createEmptyBorder(2, 0, 0, 0));
    private class TabButton extends JButton implements ActionListener {
        public TabButton() {
            int size = 17;
            setPreferredSize(new Dimension(size, size));
            setToolTipText("Close this tab");
            //Make the button looks the same for all Laf's
            setUI(new BasicButtonUI());
            //Make it transparent
            setContentAreaFilled(false);
            //No need to be focusable
            setFocusable(false);
            setBorder(BorderFactory.createEtchedBorder());
            setBorderPainted(false);
            //Making nice rollover effect
            //we use the same listener for all buttons
            addMouseListener(buttonMouseListener);
            setRolloverEnabled(true);
            //Close the proper tab by clicking the button
            addActionListener(this);
        public void actionPerformed(ActionEvent e) {
            int i = pane.indexOfTabComponent(DisposableTabPanel.this);
            if (i != -1) {
                pane.remove(i);
        //we don't want to update UI for this button
        public void updateUI() {
        //paint the cross
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            Graphics2D g2 = (Graphics2D) g.create();
            //shift the image for pressed buttons
            if (getModel().isPressed()) {
                g2.translate(1, 1);
            g2.setStroke(new BasicStroke(2));
            g2.setColor(Color.BLACK);
            if (getModel().isRollover()) {
                g2.setColor(Color.MAGENTA);
            int delta = 6;
            g2.drawLine(delta, delta, getWidth() - delta - 1, getHeight() - delta - 1);
            g2.drawLine(getWidth() - delta - 1, delta, delta, getHeight() - delta - 1);
            g2.dispose();
    private final static MouseListener buttonMouseListener = new MouseAdapter() {
        @Override
        public void mouseEntered(MouseEvent e) {
            Component component = e.getComponent();
            if (component instanceof AbstractButton) {
                AbstractButton button = (AbstractButton) component;
                button.setBorderPainted(true);
        @Override
        public void mouseExited(MouseEvent e) {
            Component component = e.getComponent();
            if (component instanceof AbstractButton) {
                AbstractButton button = (AbstractButton) component;
                button.setBorderPainted(false);
}I cant possibly post a running code as it uses third party libraries and implements bunch of interfaces, it would require whole nearly whole view-controller part of the project.
Another problem is that method getComponentZOrder(this) - 1, works for retrieving all tabs except the first one (it returns fine indexes for any tab but -1 for the first one) but sadly there is no such method like getIndex(Component) which would be useful for getting <b>this</b> components index.
Thanks in advance for ideas.
Regards, Marek