cmpPreview.setLayout( new GridLayout( ) );
GridLayout layout = new GridLayout( ); layout.marginWidth = 0; layout.marginHeight = 0; cmpPreview.setLayout( layout );
	private void createPreviewArea( Composite parent )	{		Composite cmpPreview = new Composite( parent, SWT.NONE );		cmpPreview.setLayout( new GridLayout( ) );		GridData gridData = new GridData( GridData.FILL_BOTH );		gridData.heightHint = 250;		cmpPreview.setLayoutData( gridData );				Label label = new Label( cmpPreview, SWT.NONE );		{			label.setFont( JFaceResources.getBannerFont( ) );			label.setText( Messages.getString( "TaskFormatChart.Label.Preview" ) ); //$NON-NLS-1$		}		previewCanvas = new Canvas( cmpPreview, SWT.BORDER );		{			previewCanvas.setLayoutData( new GridData( GridData.FILL_BOTH ) );			previewCanvas.setBackground( Display.getDefault( )					.getSystemColor( SWT.COLOR_WHITE ) );		}	}