Sets whether cell_view should request space to fit the entire GtkTreeModel. This is used by GtkComboBox to ensure that the cell view displayed on the combo box's button always gets enough space and does not resize when selection changes.
whether cell_view should request space for the whole model. Since 3.0
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Sets whether cell_view should request space to fit the entire GtkTreeModel. This is used by GtkComboBox to ensure that the cell view displayed on the combo box's button always gets enough space and does not resize when selection changes.