// beginning of Add_Prefix_and_Suffix.bsh

// import statement (see Section 15.3.1, “Import Statements”)
import javax.swing.border.*;

// main routine
void prefixSuffixDialog()
{
    // create dialog object (see Section 15.3.2, “Create the Dialog”)
    title = “Add prefix and suffix to selected lines”;
    dialog = new JDialog(view, title, false);
    content = new JPanel(new BorderLayout());
    content.setBorder(new EmptyBorder(12, 12, 12, 12));
    content.setPreferredSize(new Dimension(320, 160));
    dialog.setContentPane(content);

    // add the text fields (see Section 15.3.3, “Create the Text Fields”)
    fieldPanel = new JPanel(new GridLayout(4, 1, 0, 6));
    prefixField = new HistoryTextField(“macro.add-prefix”);
    prefixLabel = new JLabel(“Prefix to add:”);
    suffixField = new HistoryTextField(“macro.add-suffix”);
    suffixLabel = new JLabel(“Suffix to add:”);
    fieldPanel.add(prefixLabel);
    fieldPanel.add(prefixField);
    fieldPanel.add(suffixLabel);
    fieldPanel.add(suffixField);
    content.add(fieldPanel, “Center”);

    // add a panel containing the buttons (see Section 15.3.4, “Create the Buttons”)
    buttonPanel = new JPanel();
    buttonPanel.setLayout(new BoxLayout(buttonPanel,
        BoxLayout.X_AXIS));
    buttonPanel.setBorder(new EmptyBorder(12, 50, 0, 50));
    buttonPanel.add(Box.createGlue());
    ok = new JButton(“OK”);
    cancel = new JButton(“Cancel”);
    ok.setPreferredSize(cancel.getPreferredSize());
    dialog.getRootPane().setDefaultButton(ok);
    buttonPanel.add(ok);
    buttonPanel.add(Box.createHorizontalStrut(6));
    buttonPanel.add(cancel);
    buttonPanel.add(Box.createGlue());
    content.add(buttonPanel, “South”);

    // register this method as an ActionListener for
    // the buttons and text fields (see Section 15.3.5, “Register the Action Listeners”)
    ok.addActionListener(this);
    cancel.addActionListener(this);
    prefixField.addActionListener(this);
    suffixField.addActionListener(this);

    // locate the dialog in the center of the
    // editing pane and make it visible (see Section 15.3.6, “Make the Dialog Visible”)
    dialog.pack();
    dialog.setLocationRelativeTo(view);
    dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
    dialog.setVisible(true);

    // this method will be called when a button is clicked
    // or when ENTER is pressed (see Section 15.3.7, “The Action Listener”)
    void actionPerformed(e)
    {
        if(e.getSource() != cancel)
        {
            processText();
        }
        dialog.dispose();
    }

    // this is where the work gets done to insert
    // the prefix and suffix (see Section 15.3.8, “Get the User's Input”)
    void processText()
    {
        prefix = prefixField.getText();
        suffix = suffixField.getText();
        if(prefix.length() == 0 && suffix.length() == 0)
            return;
        prefixField.addCurrentToHistory();
        suffixField.addCurrentToHistory();

        // text manipulation begins here using calls
        // to jEdit methods  (see Section 15.3.9, “Call jEdit Methods to Manipulate Text”)
        buffer.beginCompoundEdit();
        selectedLines = textArea.getSelectedLines();
        for(i = 0; i < selectedLines.length; ++i)
        {
            offsetBOL = textArea.getLineStartOffset(
                selectedLines[i]);
            textArea.setCaretPosition(offsetBOL);
            textArea.goToStartOfWhiteSpace(false);
            textArea.goToEndOfWhiteSpace(true);
            text = textArea.getSelectedText();
            if(text == null) text = "";
            textArea.setSelectedText(prefix + text + suffix);
        }
        buffer.endCompoundEdit();
    }
}

// this single line of code is the script's main routine
// (see Section 15.3.10, “The Main Routine”)
prefixSuffixDialog();

// end of Add_Prefix_and_Suffix.bsh