A simple Java Swing font chooser program example to give the user an option to select the font and that will apply to a text label.
Java Swing Font Chooser Example
FontChooser.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class FontChooser extends JPanel {
protected JList<String> nameList;
protected JComboBox<Integer> sizeBox;
protected JCheckBox boldBox;
protected JCheckBox italicBox;
protected FontFrame frame;
public final static int[] fontSizes = {10, 12, 14, 18, 24, 32, 48, 64};
public FontChooser(FontFrame stf) {
super();
frame = stf;
createComponents();
buildLayout();
}
protected void buildLayout() {
JLabel label;
GridBagConstraints constraints = new GridBagConstraints();
GridBagLayout layout = new GridBagLayout();
setLayout(layout);
constraints.anchor = GridBagConstraints.WEST;
constraints.insets = new Insets(5, 10, 5, 10);
constraints.gridx = 0;
label = new JLabel("Name:", JLabel.LEFT);
layout.setConstraints(label, constraints);
add(label);
label = new JLabel("Size:", JLabel.LEFT);
layout.setConstraints(label, constraints);
add(label);
layout.setConstraints(boldBox, constraints);
add(boldBox);
constraints.gridx++;
nameList.setVisibleRowCount(3);
JScrollPane jsp = new JScrollPane(nameList);
layout.setConstraints(jsp, constraints);
add(jsp);
layout.setConstraints(sizeBox, constraints);
add(sizeBox);
layout.setConstraints(italicBox, constraints);
add(italicBox);
}
protected void createComponents() {
GraphicsEnvironment ge =
GraphicsEnvironment.getLocalGraphicsEnvironment();
String[] names = ge.getAvailableFontFamilyNames();
nameList = new JList<String>(names);
nameList.setSelectedIndex(0);
nameList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
nameList.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent event) {
handleFontPropertyChange();
}
}
);
Integer sizes[] = new Integer[fontSizes.length];
for (int i = 0; i < sizes.length; i++) {
sizes[i] = new Integer(fontSizes[i]);
}
sizeBox = new JComboBox<Integer>(sizes);
sizeBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
handleFontPropertyChange();
}
}
);
boldBox = new JCheckBox("Bold");
boldBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
handleFontPropertyChange();
}
}
);
italicBox = new JCheckBox("Italic");
italicBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
handleFontPropertyChange();
}
}
);
}
protected void handleFontPropertyChange() {
frame.refreshDisplayFont();
}
public String getSelectedFontName() {
return (String)(nameList.getSelectedValue());
}
public int getSelectedFontSize() {
return ((Integer)(sizeBox.getSelectedItem())).intValue();
}
public boolean isBoldSelected() {
return boldBox.isSelected();
}
public boolean isItalicSelected() {
return italicBox.isSelected();
}
}FontFrame.java
import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import javax.swing.text.*;
public class FontFrame extends JFrame {
protected FontChooser propertiesPanel;
protected JTextField sampleText;
protected JLabel displayArea;
public static void main(String[] args) {
FontFrame stf = new FontFrame();
stf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
stf.setVisible(true);
}
public FontFrame() {
super();
createComponents();
createDocumentListener();
buildLayout();
refreshDisplayFont();
pack();
}
protected void createComponents() {
propertiesPanel = new FontChooser(this);
sampleText = new JTextField(20);
displayArea = new JLabel("");
displayArea.setPreferredSize(new Dimension(200, 75));
displayArea.setMinimumSize(new Dimension(200, 75));
}
protected void createDocumentListener() {
Document document = sampleText.getDocument();
document.addDocumentListener(new DocumentListener() {
public void changedUpdate(DocumentEvent event) {
handleDocumentUpdate();
}
public void insertUpdate(DocumentEvent event) {
handleDocumentUpdate();
}
public void removeUpdate(DocumentEvent event) {
handleDocumentUpdate();
}
}
);
}
protected void buildLayout() {
Container pane = getContentPane();
GridBagConstraints constraints = new GridBagConstraints();
GridBagLayout layout = new GridBagLayout();
pane.setLayout(layout);
constraints.insets = new Insets(5, 10, 5, 10);
constraints.fill = GridBagConstraints.HORIZONTAL;
constraints.weightx = 1;
constraints.gridx = 0;
BevelBorder bb = new BevelBorder(BevelBorder.RAISED);
TitledBorder tb = new TitledBorder(bb, "Font");
propertiesPanel.setBorder(tb);
layout.setConstraints(propertiesPanel, constraints);
pane.add(propertiesPanel);
layout.setConstraints(sampleText, constraints);
pane.add(sampleText);
layout.setConstraints(displayArea, constraints);
pane.add(displayArea);
}
protected void handleDocumentUpdate() {
displayArea.setText(sampleText.getText());
}
public void refreshDisplayFont() {
displayArea.setFont(getSelectedFont());
}
public Font getSelectedFont() {
String name = propertiesPanel.getSelectedFontName();
int style = 0;
style += (propertiesPanel.isBoldSelected() ? Font.BOLD : 0);
style += (propertiesPanel.isItalicSelected() ? Font.ITALIC : 0);
int size = propertiesPanel.getSelectedFontSize();
return new Font(name, style, size);
}
}Now run the program FontFrame.java, and the output would be as shown below:
