JTextArea in GridBagLayout wrapping too soon

Question

The JTextArea named txtaObservation is occupying five horizontal slots of its container's GridBagLayout. Its text should wrap by when it reaches the fifth slot, below the label named lblObservationLimit, however it is wrapping too soon, just about in the first slot. How do I make it wrap at the correct slot?

JDViewCustomer.java

package test2;

import java.awt.Color;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.util.Objects;

import javax.swing.BoxLayout;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;

public class JDViewCustomer extends javax.swing.JDialog {

    private static final long serialVersionUID = 1L;

    private JTextArea txtaObservation;
    private JPanel panelCustomerData;

    private final CustomerData customerData;
    private JLabel lblObservationLimit;


    public JDViewCustomer(java.awt.Frame parent, boolean modal, CustomerData customerData) {
        super(parent, modal);
        this.customerData = Objects.requireNonNull(customerData);

        getContentPane().setLayout(new BoxLayout(getContentPane(), BoxLayout.Y_AXIS));

        layoutCustomerDataSection();
        addCustomerData();

        initComponents();
    }

    public void layoutCustomerDataSection() {
        panelCustomerData = new JPanel();
        panelCustomerData.setBorder(new CompoundBorder(new LineBorder(new Color(0, 0, 0), 1, true), new EmptyBorder(10, 10, 10, 10)));
        panelCustomerData.setBackground(Color.WHITE);

        getContentPane().add(panelCustomerData);

        GridBagLayout gbl_panelCustomerData = new GridBagLayout();
        gbl_panelCustomerData.columnWidths = new int[]{58, 199, 38, 102, 27, 138, 0};
        gbl_panelCustomerData.rowHeights = new int[]{0, 14, 0};
        gbl_panelCustomerData.columnWeights = new double[]{0.0, 0.0, 0.0, 0.0, 0.0, 0.0, Double.MIN_VALUE};
        gbl_panelCustomerData.rowWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
        panelCustomerData.setLayout(gbl_panelCustomerData);

        lblObservationLimit = new JLabel("Observation limit");
        GridBagConstraints gbc_lblObservationLimit = new GridBagConstraints();
        gbc_lblObservationLimit.insets = new Insets(0, 0, 5, 0);
        gbc_lblObservationLimit.gridx = 5;
        gbc_lblObservationLimit.gridy = 0;
        panelCustomerData.add(lblObservationLimit, gbc_lblObservationLimit);

        txtaObservation = new JTextArea("Observation text");
        txtaObservation.setFont(new Font("Tahoma", Font.PLAIN, 11));
        txtaObservation.setLineWrap(true);
        txtaObservation.setWrapStyleWord(true);
        GridBagConstraints gbc_txtaObservation = new GridBagConstraints();
        gbc_txtaObservation.gridwidth = 5;
        gbc_txtaObservation.anchor = GridBagConstraints.NORTHWEST;
        gbc_txtaObservation.gridx = 1;
        gbc_txtaObservation.gridy = 1;
        panelCustomerData.add(txtaObservation, gbc_txtaObservation);
    }

    public void addCustomerData() {
        txtaObservation.setText(customerData.getObservation());
    }

    private void initComponents() {

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("View customer");

        pack();
        setLocationRelativeTo(getParent());
    }
}

CustomerData.java

package test2;

public class CustomerData {

    private final String observation;

    public CustomerData(String observation) {
        this.observation = observation;
    }

    public String getObservation() {
        return observation;
    }
}

Test2.java

package test2;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class Test2 {
    private static void createAndShowGUI() {
        JFrame frame = new JFrame("Test");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        CustomerData customerData = new CustomerData("Testing a long observation text that should wrap only when reaching the observation limit.");
        new JDViewCustomer(frame, true, customerData).setVisible(true);

        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

Answer 1

Try this for JDViewCustomer.java -- comments are flagged with "// kwb". I didn't realize until just now that it was unofficially answered!

import java.awt.Color;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.util.Objects;
import javax.swing.BorderFactory;

import javax.swing.BoxLayout;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;

public class JDViewCustomer extends javax.swing.JDialog {

    private static final long serialVersionUID = 1L;

    private JTextArea txtaObservation;
    private JPanel panelCustomerData;

    private final CustomerData customerData;
    private JLabel lblObservationLimit;


    public JDViewCustomer(java.awt.Frame parent, boolean modal, CustomerData customerData) {
        super(parent, modal);
        this.customerData = Objects.requireNonNull(customerData);

        getContentPane().setLayout(new BoxLayout(getContentPane(), BoxLayout.Y_AXIS));

        layoutCustomerDataSection();
        addCustomerData();

        initComponents();
    }

    public void layoutCustomerDataSection() {
        panelCustomerData = new JPanel();
        panelCustomerData.setBorder(new CompoundBorder(new LineBorder(new Color(0, 0, 0), 1, true), new EmptyBorder(10, 10, 10, 10)));
        panelCustomerData.setBackground(Color.WHITE);

        getContentPane().add(panelCustomerData);

        GridBagLayout gbl_panelCustomerData = new GridBagLayout();
        gbl_panelCustomerData.columnWidths = new int[]{58, 199, 38, 102, 27, 138, 0};
        gbl_panelCustomerData.rowHeights = new int[]{0, 14, 0};
        gbl_panelCustomerData.columnWeights = new double[]{0.0, 0.0, 0.0, 0.0, 0.0, 0.0, Double.MIN_VALUE};
        gbl_panelCustomerData.rowWeights = new double[]{0.0, 0.0, Double.MIN_VALUE};
        panelCustomerData.setLayout(gbl_panelCustomerData);

        lblObservationLimit = new JLabel("Observation limit");
        GridBagConstraints gbc_lblObservationLimit = new GridBagConstraints();
        gbc_lblObservationLimit.insets = new Insets(0, 0, 5, 0);
        gbc_lblObservationLimit.gridx = 5;
        gbc_lblObservationLimit.gridy = 0;
// kwb set gridheight to total number of rows
        gbc_lblObservationLimit.gridheight = 2;
        panelCustomerData.add(lblObservationLimit, gbc_lblObservationLimit);

        txtaObservation = new JTextArea("Observation text");
// kwb just to help view issue
        txtaObservation.setBorder(BorderFactory.createLineBorder(Color.blue));
        txtaObservation.setFont(new Font("Tahoma", Font.PLAIN, 11));
        txtaObservation.setLineWrap(true);
        txtaObservation.setWrapStyleWord(true);
        GridBagConstraints gbc_txtaObservation = new GridBagConstraints();
        gbc_txtaObservation.gridwidth = 5;
        gbc_txtaObservation.anchor = GridBagConstraints.NORTHWEST;
// kwb fill all available horizontal space
        gbc_txtaObservation.fill = GridBagConstraints.HORIZONTAL;
// kwb change to start in column 0, adjust as necessary
        gbc_txtaObservation.gridx = 0;
        gbc_txtaObservation.gridy = 1;
        panelCustomerData.add(txtaObservation, gbc_txtaObservation);
    }

    public void addCustomerData() {
        txtaObservation.setText(customerData.getObservation());
    }

    private void initComponents() {

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("View customer");

        pack();
        setLocationRelativeTo(getParent());
    }
}