Bug 154064 Need a way to access the TreeItem or TableItem on a refresh
It is not currently possible to know when an item is refreshed. This is required for ownerDraw support in viewers.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ViewerRow.java
* @param columnIndex
	 * @return Color
	 */
	public abstract Color getForeground(int columnIndex);
	
	/**
	 * Set the foreground at the columnIndex.
	 * @param columnIndex
	 * @param color
	 */
	public abstract void setForeground(int columnIndex, Color color);
	
	/**
	 * Get the font at the columnIndex.
	 * @param columnIndex
	 * @return Font
	 */
	public abstract Font getFont(int columnIndex);
	
	/**
	 * Set the font at the columnIndex.
	 * @param columnIndex
	 * @param font
	 */
	public abstract void setFont(int columnIndex,Font font);
	
	
	/**
	 * Get the ViewerCell at point.
	 * @param point