### Root functor: `Main.oz`

Source File

>     functor

>     import
>        Application(exit getCmdArgs)
>        Explorer(object)

>        Tk(frame toplevel batch addXScrollbar addYScrollbar scrollbar)
>        TkTools(notebook)

>        TaskBoard('class')
>        Scheduler('class')
>        Tools('class')
>        Configure(text)

>     require
>        Examples

>     prepare
>        ArgSpec = record(example(single type:atom default:no))
>        {Wait Examples}

>     define

>        Args = {Application.getCmdArgs ArgSpec}

>        class Frontend
>           from Tk.frame
>           feat Board Sched

>           meth tkInit(parent:P spec:Spec)
>              Tk.frame, tkInit(parent:P)
>              NB = {New TkTools.notebook  tkInit(parent:self font:Configure.text)}
>              T  = {New Tools.'class'     tkInit(parent:NB board:B)}
>              S  = {New Scheduler.'class' tkInit(parent:NB board:B)}
>              F  = {New Tk.frame          tkInit(parent:self)}
>              B  = {New TaskBoard.'class' tkInit(parent:F tools:T spec:Spec)}
>              H  = {New Tk.scrollbar      tkInit(parent:F orient:horizontal
>                                                 width:13)}
>              V  = {New Tk.scrollbar      tkInit(parent:F orient:vertical
>                                                 width:13)}
>           in
>              {Tk.addXScrollbar B H}
>              {Tk.addYScrollbar B V}
>              {Tk.batch [grid(columnconfigure F    0 weight:1)
>                         grid(rowconfigure    F    0 weight:1)
>                         grid(B row:0 column:0 sticky:nsew)
>                         grid(H row:1 column:0 sticky:we)
>                         grid(V row:0 column:1 sticky:ns)
>                         grid(columnconfigure self 0 weight:1)
>                         grid(rowconfigure    self 0 weight:1)
>                         grid(F  row:0 column:1 sticky:nsew padx:4 pady:4)
>                         grid(NB row:0 column:0 sticky:n    padx:4 pady:4)]}
>              {NB add(T)} {NB add(S)}
>              self.Board = B
>              self.Sched = S
>           end

>           meth displaySol(Sol)
>              if {Record.all Sol IsDet} then
>                 {self.Board displaySol(Sol)}
>                 {self.Sched setSpan(Sol)}
>              end
>           end

>        end

>        Top = {New Tk.toplevel tkInit(title:    'Job Shop Scheduler'
>                                      delete:   Application.exit # 0
>                                      withdraw: true)}

>        JSS = {New Frontend
>               tkInit(parent: Top
>                      spec:   if {HasFeature Examples Args.example} then
>                                 Examples.(Args.example)
>                              else nil
>                              end)}

>        {Explorer.object add(information
>                             proc {$ N X}
>                                {JSS displaySol(X)}
>                             end
>                             label: 'Display Job Shop Schedule')}

>        {Tk.batch [pack(JSS)
>                   update
>                   wm(deiconify Top)
>                   wm(resizable Top false false)]}

>     end