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
* @param image
	 */
	public void setImage(Image image) {
		row.setImage(columnIndex, image);
	}
	/**
	 * Set the style ranges to be applied on the text label Note: Requires
	 * {@link StyledCellLabelProvider} with owner draw enabled.
	 * 
	 * @param styleRanges
	 *            the styled ranges
	 * 
	 * @since 3.4
	 */
	public void setStyleRanges(StyleRange[] styleRanges) {
		row.setStyleRanges(columnIndex, styleRanges);
	}
	/**
	 * Returns the style ranges to be applied on the text label or
	 * <code>null</code> if no style ranges have been set.
	 * 
	 * @return styleRanges the styled ranges
	 * 
	 * @since 3.4
	 */
	public StyleRange[] getStyleRanges() {
		return row.getStyleRanges(columnIndex);
	}
	/**
	 * Set the columnIndex.