package swtshelltest;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;

public class MainShell extends Shell
{
    Button buttonOpen = new Button(this, SWT.NONE);

    public static void main(String[] args)
    {
        MainShell main = new MainShell();
    }

    MainShell()
    {
        super(Display.getDefault(), SWT.CLOSE);
        this.setText("MainShell");
        this.setBounds(100, 100, 200, 200);

        buttonOpen.setText("Open");
        buttonOpen.setLocation(10, 10);
        buttonOpen.pack();
        buttonOpen.addSelectionListener(openSecondShell);

        this.open();

        while (!this.isDisposed())
        {
            if (!Display.getDefault().readAndDispatch())
                Display.getDefault().sleep();
        }
    }

    @Override
    protected void checkSubclass()
    {
        
    }

    //funktion som körs när man klickar på knappen som startar resultatvisningen
    SelectionListener openSecondShell = new SelectionListener()
    {
        @Override
        public void widgetSelected(SelectionEvent event)
        {
            SecondShell secondShell = new SecondShell();
        }

        @Override
        public void widgetDefaultSelected(SelectionEvent event)
        {

        }
    };
}

package swtshelltest;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class SecondShell extends Shell
{
    SecondShell()
    {
        super(Display.getDefault(), SWT.CLOSE);
        this.setText("SecondShell");
        this.setBounds(400, 100, 100, 100);
        this.open();
    }

    @Override
    protected void checkSubclass()
    {
        
    }
}

SecondShell secondShell = new SecondShell();
secondShell.addShellListener(new ShellAdapter() {
       public void shellClosed(ShellEvent e) {
            System.out.println("second shell closed");
       };
});