CellArea.getPreferredWidthForHeight

void getPreferredWidthForHeight(gtk.cell_area_context.CellAreaContext context,  gtk.widget.Widget widget,  int  height,  out  int  minimumWidth,  out  int  naturalWidth)

Retrieves a cell area’s minimum and natural width if it would be given the specified height.

area stores some geometrical information in context along the way while calling [gtk.cell_area.CellArea.getPreferredHeight]. It’s important to perform a series of [gtk.cell_area.CellArea.getPreferredHeight] requests with context first and then call [gtk.cell_area.CellArea.getPreferredWidthForHeight] on each cell area individually to get the height for width of each fully requested row.

If at some point, the height of a single row changes, it should be requested with [gtk.cell_area.CellArea.getPreferredHeight] again and then the full height of the requested rows checked again with [gtk.cell_area_context.CellAreaContext.getPreferredHeight].

Parameters

`context`	the #GtkCellAreaContext which has already been requested for widths.
`widget`	the #GtkWidget where area will be rendering
`height`	the height for which to check the width of this area
`minimumWidth`	location to store the minimum width, or null
`naturalWidth`	location to store the natural width, or null