foreach_alloc

Description:

public virtual void foreach_alloc (CellAreaContext context, Widget widget, Rectangle cell_area, Rectangle background_area, CellAllocCallback callback)

Calls callback for every `GtkCellRenderer` in this with the allocated rectangle inside cell_area.

this	a `GtkCellArea`
context	the `GtkCellArea`Context for this row of data.
widget	the `GtkWidget` that this is rendering to
cell_area	the `widget` relative coordinates and size for this
background_area	the `widget` relative coordinates of the background area
callback	the `GtkCellAllocCallback` to call
callback_data	user provided data pointer