Demonstrates FocusListener
//Send questions, comments, bug reports, etc. to the authors:
//Rob Warner (rwarner@interspatial.com)
//Robert Harris (rbrt_harris@yahoo.com)
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
/**
* This class demonstrates FocusListener
*/
public class FocusListenerExample {
/**
* The application entry point
*
* @param args the command line arguments
*/
public static void main(String[] args) {
// Create the shell
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(3, true));
shell.setText("One Potato, Two Potato");
// Create the focus listener
FocusListener listener = new FocusListener() {
public void focusGained(FocusEvent event) {
Button button = (Button) event.getSource();
button.setText("I'm It!");
}
public void focusLost(FocusEvent event) {
Button button = (Button) event.getSource();
button.setText("Pick Me!");
}
};
// Create the buttons and add the listener to each one
for (int i = 0; i < 6; i++) {
Button button = new Button(shell, SWT.PUSH);
button.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
button.setText("Pick Me!");
button.addFocusListener(listener);
}
// Display the window
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
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