import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

/**
 * @author Thomas Singer
 */
public class VirtualOwnerDrawnTable {

	public static void main(String[] args) {
		final Display display = new Display();
		final Shell shell = new Shell(display);
		shell.setLayout(new FillLayout(SWT.VERTICAL));

		final Table table = new Table(shell, SWT.VIRTUAL | SWT.BORDER | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL | SWT.MULTI);
		table.setHeaderVisible(false);
		final Listener listener = event -> {
			final TableItem item = (TableItem)event.item;
			if (event.type == SWT.EraseItem) {
				event.detail &= ~SWT.FOREGROUND;
			}
			else if (event.type == SWT.PaintItem) {
				event.gc.drawText((String)item.getData(), event.x, event.y, true);
			}
			else if (event.type == SWT.MeasureItem) {
				final String text = (String)item.getData();
				final Point point = event.gc.textExtent(text);
				event.height = point.y;
				event.width = Math.max(event.width, point.x);
			}
			else if (event.type == SWT.SetData) {
				final int index = table.indexOf(item);
				final String data = "Item " + index;
				item.setData(data);
			}
		};
		table.addListener(SWT.EraseItem, listener);
		table.addListener(SWT.SetData, listener);
		table.addListener(SWT.MeasureItem, listener);
		table.addListener(SWT.PaintItem, listener);

		final TableColumn column = new TableColumn(table, SWT.LEFT);
		column.setText("Column");
		column.setResizable(false);

		table.addListener(SWT.Paint, event -> {
			setColumnWidth(column);
		});

		table.setVisible(false);
		table.setItemCount(100);

		shell.setSize(200, 300);
		setColumnWidth(column);

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

	private static void setColumnWidth(TableColumn column) {
		final Table table = column.getParent();
		final Rectangle area = table.getClientArea();
		System.out.println("area = " + area);
		column.setWidth(area.width);
	}
}