Display display = new Display();
		Shell shell = new Shell(display);
		shell.setLayout(new FillLayout());
		shell.setSize(400, 400);
		Composite compos = new Composite(shell, SWT.NONE);
		compos.setBackground(display.getSystemColor(SWT.COLOR_CYAN));
		GridLayout layout = new GridLayout();
		compos.setLayout(layout);
		final Label label = new Label(compos, SWT.WRAP);
		final GridData data = new GridData(SWT.FILL, SWT.TOP, true, false, 1, 1);
		label.setLayoutData(data);
		label.setText("asda sda sdasd asda sda sdada dadads asd adsad as dadsa sad sada dsasda sd adsa sasd");
		label.setBackground(display.getSystemColor(SWT.COLOR_RED));
		new Button(compos, SWT.PUSH).setText("sfdsfsd");
		
		shell.open();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch())
				display.sleep();
		}
		display.dispose();

composite3 = new Composite(this, SWT.NONE);
				GridLayout composite3Layout = new GridLayout();
				composite3Layout.makeColumnsEqualWidth = true;
				GridData composite3LData = new GridData();
				composite3LData.grabExcessVerticalSpace = true;
				composite3LData.verticalAlignment = GridData.FILL;
				composite3.setLayoutData(composite3LData);
				composite3.setLayout(composite3Layout);
				{
					button2 = new Button(composite3, SWT.PUSH | SWT.CENTER);
					GridData button2LData = new GridData();
					button2LData.widthHint = 161;
					button2LData.heightHint = 25;
					button2.setLayoutData(button2LData);
					button2.setText("button2");
				}
				{
					text1 = new Text(composite3, SWT.MULTI | SWT.WRAP | SWT.TRANSPARENT);
					GridData text1LData = new GridData();
					text1LData.horizontalAlignment = GridData.FILL;
					text1LData.grabExcessHorizontalSpace = true;
					//text1LData.widthHint = 60;
					text1.setLayoutData(text1LData);
					text1.setText("Find the right blocklength and try to move the columns to find the plaintext.");
					text1.setEditable(false);
				}

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class TestMain {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		Display display = new Display();

	    Shell shell = new Shell(display);
	    shell.setSize(400, 400);

		Button button2;
		Text text1;
		
		Composite composite3 = new Composite(shell, SWT.NONE);
		GridLayout composite3Layout = new GridLayout();
		composite3.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_RED));
		composite3.setLayout(composite3Layout);
		composite3Layout.makeColumnsEqualWidth = true;
		
		button2 = new Button(composite3, SWT.PUSH | SWT.CENTER);
		GridData button2LData = new GridData();
		button2LData.widthHint = 161;
		button2LData.heightHint = 25;
		button2.setLayoutData(button2LData);
		button2.setText("button2");
		
		text1 = new Text(composite3, SWT.MULTI | SWT.WRAP | SWT.TRANSPARENT);
		GridData text1LData = new GridData();
		text1LData.horizontalAlignment = GridData.FILL;
		text1LData.grabExcessHorizontalSpace = true;
		text1LData.widthHint = 161;
		text1.setLayoutData(text1LData);
		text1.setText("Find the right blocklength and try to move the columns to find the plaintext.");
		text1.setEditable(false);
		composite3.pack();

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