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