SelectionListener and DisposeListener
//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 SelectionListener and DisposeListener
*/
public class DisposeListenerExample {
/**
* The application entry point
*
* @param args the command line arguments
*/
public static void main(String[] args) {
Display display = new Display();
// Create the main window
Shell mainShell = new Shell(display);
mainShell.setLayout(new FillLayout());
mainShell.setText("Big Brother");
final Label mainMessage = new Label(mainShell, SWT.LEFT);
mainMessage.setText("Don't even think about it");
// Create the child shell and the dispose listener
final Shell childShell = new Shell(mainShell);
childShell.addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent event) {
// When the child shell is disposed, change the message on the main shell
mainMessage.setText("Gotcha");
}
});
childShell.setLayout(new FillLayout());
childShell.setText("little brother");
// Put a message on the child shell
new Label(childShell, SWT.LEFT)
.setText("If you dispose me, my big brother's gonna get you!");
// Add a button and a listener to the child shell
Button button = new Button(childShell, SWT.PUSH);
button.setText("Close Me!");
button.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
// When the button is pressed, close the child shell
childShell.close();
}
});
// Open the shells
mainShell.open();
childShell.open();
while (!mainShell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
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