package snippet;

import java.util.*;

import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

public class ShellOrderSnippet {

    public static void main(String[] args) {
        final Display display= new Display();
        final Shell shell= new Shell(display);
        shell.setText("Main");
        shell.setBounds(100, 100, 200, 160);
        shell.setLayout(new GridLayout());
        
        Label temp= new Label(shell, SWT.NONE);
        
        shell.open();

        for (int i= 0; i < 3; i++) {
            Shell child= new Shell(shell, SWT.SHELL_TRIM);
            child.setText("Child " + i);
            Rectangle bounds= shell.getBounds();
            bounds.x+= 20 * (i + 1);
            bounds.y+= 20 * (i + 1);
            child.setBounds(bounds);
            child.open();
            child.addShellListener(new ShellAdapter() {
                public void shellClosed(ShellEvent e) {
                    display.asyncExec(new Runnable() {
                        public void run() {
                            Shell[] subShells= shell.getShells();
                            System.out.println(Arrays.asList(subShells));
                            if (subShells.length > 0) {
                                subShells[subShells.length - 1].setActive();
                            }
                        }
                    });
                }
            });
            
            if (temp != null) {
                temp.dispose();
                temp= null;
            }
        }
        

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();

    }

}