Mega Code Archive
Key Listener Example
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import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class KeyListenerExample {
Display d;
Shell s;
KeyListenerExample() {
d = new Display();
s = new Shell(d);
s.setSize(250, 200);
s.setText("A KeyListener Example");
s.setLayout(new RowLayout());
final Combo c = new Combo(s, SWT.DROP_DOWN | SWT.BORDER);
c.add("Lions");
c.add("Tigers");
c.add("Bears");
c.add("Oh My!");
c.addKeyListener(new KeyListener() {
String selectedItem = "";
public void keyPressed(KeyEvent e) {
if (c.getText().length() > 0) {
return;
}
String key = Character.toString(e.character);
String[] items = c.getItems();
for (int i = 0; i < items.length; i++) {
if (items[i].toLowerCase().startsWith(key.toLowerCase())) {
c.select(i);
selectedItem = items[i];
return;
}
}
}
public void keyReleased(KeyEvent e) {
if (selectedItem.length() > 0)
c.setText(selectedItem);
selectedItem = "";
}
});
s.open();
while (!s.isDisposed()) {
if (!d.readAndDispatch())
d.sleep();
}
d.dispose();
}
public static void main() {
new KeyListenerExample();
}
}
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