package A1l2;
 
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
 
public class Example {
 
	Display display;
	Shell shell;
 
	public Example(Display display) {
		this.display = display;
		shell = new Shell(display);
		shell.setText("Aufgabe 1.2");
	}
 
	private void createGUI() {
 
	}
 
	private void run() {
		createGUI();
		shell.open();
		while(!shell.isDisposed()) {
			if(!display.readAndDispatch()) {
				display.sleep();
			}
		}
		display.dispose();
	}
 
	public static void main(String[] args) {
		new Example(Display.getDefault()).run();
	}
}

package A1l2;
 
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
 
public class Example {
 
	Display display;
	Shell shell;
 
	public Example(Display display) {
		this.display = display;
		shell = new Shell(display);
		shell.setText("Aufgabe 1.2");
	}
 
	private void createGUI() {
 
		FillLayout fillLayout = new FillLayout();
		fillLayout.type = SWT.VERTICAL;
		shell.setLayout(fillLayout);
		Button button = new Button(shell, SWT.PUSH);
		Messenger newThread = new Messenger(display, button);
		newThread.start();
 
		shell.pack();
	}
 
	private void run() {
		createGUI();
		shell.open();
		while(!shell.isDisposed()) {
			if(!display.readAndDispatch()) {
				display.sleep();
			}
		}
		display.dispose();
	}
 
	public static void main(String[] args) {
		new Example(Display.getDefault()).run();
	}
}

package A1l2;
 
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
 
public class Messenger extends Thread{
 
	private int titleCounter = 0;
	private Display display;
	private Button button;
	private boolean runnable = true;
 
	public Messenger(Display display, Button button) {
		this.display = display;
		this.button = button;
	}
 
	public void run() {
		while(runnable) {
			try {
				sleep(1000);
				if(!display.isDisposed()) {
					uiThread();
				} else {
					runnable = false;
				}
			}catch(InterruptedException ex) {}
		}
	}
 
	private void uiThread() {
		display.asyncExec(new Runnable() {
			public void run() {
				titleCounter = titleCounter == 10 ? 0 : titleCounter + 1;
				button.setText("Timer: "+titleCounter);
			}
		});
	}
 
}