[ Version ( since = "3.0" ) ]
public void add_focus_sibling (CellRenderer renderer, CellRenderer sibling)
Adds sibling to renderer’s focusable area, focus will be drawn around renderer and all of its
siblings if renderer can focus for a given row.
Events handled by focus siblings can also activate the given focusable renderer.
| this |
a CellArea |
| renderer |
the CellRenderer expected to have focus |
| sibling |
the CellRenderer to add to |