Bug 267117 [JFace] Provide possibility for subclasses to check if a column is visible in ViewerRow
Currently this is decided by checking with width but this makes Nebula-Grid fail.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ViewerCell.java
}
					}
				}
				return cell;
			}
		}
		return null;
	}
	/**
	 * @return the row
	 */
	public ViewerRow getViewerRow() {
		return row;
	}
	/**
	 * The location and bounds of the area where the text is drawn depends on
	 * various things (image displayed, control with SWT.CHECK)
	 * 
	 * @return The bounds of the of the text area. May return <code>null</code>
	 *         if the underlying widget implementation doesn't provide this
	 *         information
	 * @since 3.4
	 */
	public Rectangle getTextBounds() {
		return row.getTextBounds(columnIndex);
	}
	/**
	 * Returns the location and bounds of the area where the image is drawn
	 * 
	 * @return The bounds of the of the image area. May return <code>null</code>