CellArea.getCellAllocation

Derives the allocation of renderer inside area if area were to be renderered in cell_area.

Parameters

contextthe #GtkCellAreaContext used to hold sizes for area.
widgetthe #GtkWidget that area is rendering on
rendererthe #GtkCellRenderer to get the allocation for
cellAreathe whole allocated area for area in widget for this row
allocationwhere to store the allocation for renderer