Vertical orientation of JTabbedPane titles when the the tab placement is set to LEFT

问题

As you can see from the image below, the Java text is horizontal. What I would like to do is get a vertical orientation of the JTabbedPane Titles.

While googling, I found that the only way is to add extra library. But I was wondering if this can be done without any extra library?

I would like for Title1 and Title2 to be vertically oriented and not horizontally

回答1:

you have to use Html syntax, for any changes to the disabled Tab too

tabbedPane.addTab("<html>T<br>i<br>t<br>t<br>l<br>e<br>1</html>", panel1);

EDIT

SSCCE for question about Html text formatting and alignment

import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;

/**
 *
 * @author korbel
 */
public class TestTabbedPane extends JFrame {

    private static final long serialVersionUID = 1L;
    private JTabbedPane tabbedPane;

    public TestTabbedPane() {
        tabbedPane = new JTabbedPane();
        tabbedPane.setPreferredSize(new Dimension(300, 200));
        getContentPane().add(tabbedPane);
        JPanel panel = new JPanel();
        tabbedPane.add(panel, "null");
        JTextField one = new JTextField("one");
        tabbedPane.add(one, "one");
        JTextField two = new JTextField("two");
        tabbedPane.add(two, "<html> T<br>i<br>t<br>t<br>l<br>e <br> 1 </html>");
        tabbedPane.setEnabledAt(2, false);
        /*int comp = tabbedPane.getComponentCount();
        for (Component sc : tabbedPane.getComponents()) {
        if (sc instanceof javax.swing.JLabel) {
        JLabel lbl = (JLabel) sc;
        lbl.setForeground(Color.red);
        }
        if (sc instanceof javax.swing.JPanel) {
        JPanel pnl = (JPanel) sc;
        pnl.setName(pnl.getName());
        }
        if (sc instanceof javax.swing.JTextField) {
        JTextField txt = (JTextField) sc;
        txt.setForeground(Color.blue);
        txt.setDisabledTextColor(Color.red);
        }
        }
        UIManager.put("TabbedPane.contentBorderInsets", new Insets(0, 0, 0, 0));
        UIManager.put("TabbedPane.highlight", new Color(255, 0, 0));
        UIManager.put("TabbedPane.lightHighlight", new Color(0, 255, 0));
        UIManager.put("TabbedPane.darkShadow", new Color(0, 255, 0));
        UIManager.put("TabbedPane.shadow",new Color(0, 0, 255));
        UIManager.put("TabbedPane.light" ,  new Color(0, 255, 0));
        UIManager.put("TabbedPane.foreground", new Color(0, 0, 0));
        UIManager.put("JTabbedPane.font", new Font("Dialog", Font.ITALIC, 12));
        UIManager.put("TabbedPane.selected", new Color(255, 0, 0));
        UIManager.put("disable", new Color(255, 0, 0));
        UIManager.put("TabbedPane.selectHighlight" , new Color(0, 0, 0));
        UIManager.put("TabbedPane.background",  new Color(0, 0, 0));
        SwingUtilities.updateComponentTreeUI(tabbedPane);*/
        tabbedPane.setTitleAt(2, "<html><font color="
                + (tabbedPane.isEnabledAt(2) ? "black" : "red") + ">"
                + tabbedPane.getTitleAt(2) + "</font></html>");
        tabbedPane.setTabPlacement(JTabbedPane.LEFT);
    }

    public static void main(String args[]) {
        TestTabbedPane frame = new TestTabbedPane();
        frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }
}

回答2:

You can use a JLabel with a custom LabelUI as described in this answer, it gives the result I expected:

JTabbedPane tabPane = new JTabbedPane(JTabbedPane.LEFT);

// Add tabs with no text
tabPane.addTab(null, component1);
tabPane.addTab(null, component2);

// Create vertical labels to render tab titles
JLabel labTab1 = new JLabel("Tab #1");
labTab1.setUI(new VerticalLabelUI(false)); // true/false to make it upwards/downwards
tabPane.setTabComponentAt(0, labTab1); // For component1

JLabel labTab2 = new JLabel("Tab #2");
labTab2.setUI(new VerticalLabelUI(false));
tabPane.setTabComponentAt(1, labTab2); // For component2

回答3:

If you use WebLaf LoolAndFeel Library There is a component called WebVerticalLabel that can have vertical text.

JTabbedPane .setTabComponentAt(1, new WebVerticalLabel("Title1"));

来源：https://stackoverflow.com/questions/8970930/vertical-orientation-of-jtabbedpane-titles-when-the-the-tab-placement-is-set-to

标签

java

swing

jtabbedpane