Bug 167325 [Viewers]ViewerCell and ViewerRow should provide API to find neighbors
This is a very important feature if we want provide keyboard features in tables and trees and the current EditingSupport has TODO items to make this work in a clear way. I'd propose the following new API functions for ViewerCell: - ViewerCell#getCellLeft() - ViewerCell#getCellRight() - ViewerCell#getCellTop() - ViewerCell#getCellBottom() - ViewerRow#getRowTop() - ViewerRow#getRowBottom() What I'm not 100% sure is if we should provide functions to navigate Tree-Structures: - ViewerCell#getCellTop(boolean samelevel) - ViewerCell#getCellBottom(boolean samelevel) - ViewerRow#getRowTop(boolean samelevel) - ViewerRow#getRowBottom(boolean samelevel)
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ViewerCell.java
* 
	 * @return {@link String}
	 */
	public String getText() {
		return row.getText(columnIndex);
	}
	/**
	 * Return the Image for the cell.
	 * 
	 * @return {@link Image} or <code>null</code>
	 */
	public Image getImage() {
		return row.getImage(columnIndex);
	}
	/**
	 * Set the background color of the cell.
	 * 
	 * @param background
	 */
	public void setBackground(Color background) {
		row.setBackground(columnIndex, background);
	}
	/**
	 * Set the foreground color of the cell.
	 * 
	 * @param foreground
	 */
	public void setForeground(Color foreground) {
		row.setForeground(columnIndex, foreground);
	}