%TRUE makes it break lines if text exceeds the widget’s size.
%FALSE lets the text get cut off by the edge of the widget if
it exceeds the widget size.
Note that setting line wrapping to %TRUE does not make the label
wrap at its parent container’s width, because GTK widgets
conceptually can’t make their requisition depend on the parent
container’s size. For a label that wraps at a specific position,
set the label’s width using [method@Gtk.Widget.set_size_request].
Toggles line wrapping within the GtkLabel widget.
%TRUE makes it break lines if text exceeds the widget’s size. %FALSE lets the text get cut off by the edge of the widget if it exceeds the widget size.
Note that setting line wrapping to %TRUE does not make the label wrap at its parent container’s width, because GTK widgets conceptually can’t make their requisition depend on the parent container’s size. For a label that wraps at a specific position, set the label’s width using [method@Gtk.Widget.set_size_request].