int width = OS.gtk_tree_view_column_get_width (column); int itemWidth = calculateWidth (column, iter);
int width = OS.gtk_tree_view_column_get_fixed_width (column); int itemWidth = calculateWidth (column, item.handle);
void setScrollWidth (int /*long*/ column, int /*long*/ iter) {	if (columnCount != 0) return;	/*	* Use GTK_TREE_VIEW_COLUMN_GROW_ONLY on GTK versions < 2.3.2	* because fixed_height_mode is not supported.	*/	if (((style & SWT.VIRTUAL) != 0) && OS.GTK_VERSION < OS.VERSION (2, 3, 2)) return;	int width = OS.gtk_tree_view_column_get_width (column);	int itemWidth = calculateWidth (column, iter);	if (width < itemWidth) {		OS.gtk_tree_view_column_set_fixed_width (column, itemWidth);	}}