Bug 300545 [Viewers] New column scrolling breaks on first cell selection if you have scrolled the table
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TreeViewerFocusCellManager.java
}
	};
	/**
	 * Create a new manager using a default navigation strategy:
	 * <ul>
	 * <li><code>SWT.ARROW_UP</code>: navigate to cell above</li>
	 * <li><code>SWT.ARROW_DOWN</code>: navigate to cell below</li>
	 * <li><code>SWT.ARROW_RIGHT</code>: on first column (collapses if item
	 * is expanded) else navigate to next visible cell on the right</li>
	 * <li><code>SWT.ARROW_LEFT</code>: on first column (expands if item is
	 * collapsed) else navigate to next visible cell on the left</li>
	 * </ul>
	 *
	 * @param viewer
	 *            the viewer the manager is bound to
	 * @param focusDrawingDelegate
	 *            the delegate responsible to highlight selected cell
	 */
	public TreeViewerFocusCellManager(TreeViewer viewer,
			FocusCellHighlighter focusDrawingDelegate) {
		this(viewer, focusDrawingDelegate, TREE_NAVIGATE);
	}
	/**
	 * Create a new manager with a custom navigation strategy
	 *
	 * @param viewer
	 *            the viewer the manager is bound to
	 * @param focusDrawingDelegate
	 *            the delegate responsible to highlight selected cell
	 * @param navigationStrategy