Sample code |
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import org.jvnet.lafwidget.LafWidget;
import org.jvnet.substance.SubstanceLookAndFeel;
/**
* Test application that shows the use of the
* {@link LafWidget#COMBO_BOX_USE_MODEL_ONLY} client property.
*
* @author Kirill Grouchnikov
* @see LafWidget#COMBO_BOX_USE_MODEL_ONLY
*/
public class ComboBoxUseModelOnly extends JFrame {
/**
* Creates the main frame for <code>this</code> sample.
*/
public ComboBoxUseModelOnly() {
super("Combobox auto-completion from model");
this.setLayout(new BorderLayout());
final JComboBox cb = new JComboBox(new Object[] { "Ester", "Jordi",
"Jordina", "Jorge", "Sergi" });
cb.setEditable(true);
JPanel main = new JPanel(new FlowLayout(FlowLayout.CENTER));
this.add(main, BorderLayout.CENTER);
main.add(cb);
JPanel controls = new JPanel(new FlowLayout(FlowLayout.RIGHT));
final JCheckBox modelOnlyAutoCompletion = new JCheckBox(
"Auto-completion from model only");
modelOnlyAutoCompletion.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
cb.putClientProperty(LafWidget.COMBO_BOX_USE_MODEL_ONLY,
modelOnlyAutoCompletion.isSelected() ? Boolean.TRUE
: null);
}
});
controls.add(modelOnlyAutoCompletion);
this.add(controls, BorderLayout.SOUTH);
this.setSize(400, 200);
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
/**
* The main method for <code>this</code> sample. The arguments are
* ignored.
*
* @param args
* Ignored.
* @throws Exception
* If some exception occured. Note that there is no special
* treatment of exception conditions in <code>this</code>
* sample code.
*/
public static void main(String[] args) throws Exception {
UIManager.setLookAndFeel(new SubstanceLookAndFeel());
JFrame.setDefaultLookAndFeelDecorated(true);
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new ComboBoxUseModelOnly().setVisible(true);
}
});
}
}
The screenshot below shows an editable combo when this property is
not installed. On typing "Es", the "Ester" entry is selected:
Now, if you press "f", the "ter" is replaced by "f" - the combo
allows selecting an entry which is not present in the model ("Esf"):
After this property has been installed, pressing "f" has no effect -
"Ester" is still the selected entry:
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