How do I write superscript word for checkbox text in java?

StackOverflow https://stackoverflow.com/questions/3925917

Question

I made few checkboxes using swing in Java. I want to write a superscript text for the checkboxes but I'm not sure how.

The code currently looks like this.

JCheckBox hCheckBox = new JCheckBox("[M + H]+");

I want to have "+" sign inside the JCheckBox parameter superscripted. What's an easy way to do this?

Thank you in advance.

Was it helpful?

Solution

Java buttons support html in their text. You need to format the string a little differently though. Try this:

JCheckBox hCheckBox = new JCheckBox("<html>[M + H]<sup>+</sup></html>");

OTHER TIPS

      package infonode;

        /**
         *
     * @author Deepak
     */
    import java.awt.*;
    import java.awt.event.*;

    import javax.swing.*;
    import javax.swing.border.*;
    import javax.swing.table.*;
    import javax.swing.text.*;

    public class CoolTable extends AbstractTableModel{


    public static void main(String[] arg){
        JFrame f = new JFrame("Cool Table");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JTable t = new JTable(new CoolTable());
        t.setDefaultRenderer(Object.class, new StyledCellRenderer());
        t.setDefaultEditor(Object.class, new StyledCellEditor());
        t.setRowHeight(50);

        System.out.println(t.isCellEditable(0, 0));

        f.add(new JScrollPane(t));
        f.pack();
        f.setVisible(true);
    }

    private Object[] data;

    /** Creates a new instance of CoolTable */
    public CoolTable() {
        final String[] dataSrc = "This is a test".split(" ");
        data = new Object[dataSrc.length]; 
        System.arraycopy(dataSrc, 0, data, 0, data.length);
    }

    public int getRowCount() { return data.length; }
    public int getColumnCount() { return 1; }
    public boolean isCellEditable(int r, int c) { return true; }

    public Object getValueAt(int r, int c){
        if(data[r] instanceof String) {
            try{
                DefaultStyledDocument doc = new DefaultStyledDocument();
                doc.insertString(0, data[r].toString(), null);
                data[r] = doc;
            } catch(BadLocationException x) {
                x.printStackTrace(System.err);
                System.exit(1);
            }
        }

        return data[r];
    }

    public void setValueAt(int r, int c, Object val){
        data[r] = val instanceof DefaultStyledDocument ? val : val.toString();
    }

    public static class StyledCellRenderer implements TableCellRenderer {
        private static Border etchedBorder = BorderFactory.createEtchedBorder();

        private JTextComponent styledRenderer = new JTextPane();

        public Component getTableCellRendererComponent(JTable table, Object value,
                                            boolean isSelected, boolean hasFocus, 
                                            int row, int column) {

            styledRenderer.setDocument((Document)value);
            styledRenderer.setBackground(isSelected ? Color.LIGHT_GRAY : Color.WHITE);
            styledRenderer.setBorder(hasFocus ? etchedBorder : null);
            return styledRenderer;
        }
    }

    public static class StyledCellEditor extends DefaultCellEditor {
        private JTextPane styledEditor = new JTextPane();

        public StyledCellEditor() {
            super(new JTextField());
            editorComponent = new JScrollPane(styledEditor);

            installActions();

            delegate = new DefaultCellEditor.EditorDelegate() {
                public void setValue(Object val) {
                    styledEditor.setDocument((Document)val);
                }

                public Object getCellEditorValue() { return styledEditor.getDocument(); }
            };

            styledEditor.addFocusListener(new FocusAdapter(){
                public void focusLoast(FocusEvent e){ delegate.stopCellEditing(); }
            });
        }

        private void installActions() {
            styledEditor.getInputMap().put(
                KeyStroke.getKeyStroke(KeyEvent.VK_UP, InputEvent.ALT_MASK),
                "superscript"
            );
            styledEditor.getInputMap().put(
                KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, InputEvent.ALT_MASK),
                "subscript"
            );
            styledEditor.getInputMap().put(
                KeyStroke.getKeyStroke(KeyEvent.VK_B, InputEvent.CTRL_MASK),
                "bold"
            );

            styledEditor.getActionMap().put("superscript", new SuperscriptAction(true));
            styledEditor.getActionMap().put("subscript", new SuperscriptAction(false));
            styledEditor.getActionMap().put("bold", new StyledEditorKit.BoldAction());
        }
    }

    private static class SuperscriptAction extends AbstractAction {
        private MutableAttributeSet superscript = new SimpleAttributeSet();

        public SuperscriptAction() {
            this(true);
        }

        public SuperscriptAction(boolean isSuperscript) {
            StyleConstants.setSuperscript(superscript, isSuperscript);
        }

        public void actionPerformed(ActionEvent e) {
            final JTextPane styledEditor = (JTextPane)e.getSource();

            styledEditor.getStyledDocument().setCharacterAttributes(
                styledEditor.getSelectionStart(), 
                styledEditor.getSelectionEnd() - styledEditor.getSelectionStart(),
                superscript,
                false
            );
        }
    }
}

I hope it will help you :)

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