### User dialog widgets: `Dialogs.oz`

Source File

>     functor

>     import
>        Tk TkTools

>        Widgets(entryChooser)
>        Country(isCity cities)
>        Configure(title colors fonts)

>     export
>        About
>        AddCompany
>        RemCompany
>        AddDriver
>        RemDriver

>     prepare
>        Pad           = 2
>        BigPad        = 4
>        BigTextWidth  = 17

>     define

>        TextBg    = Configure.colors.textBg
>        AboutFont = Configure.fonts.about

>        class About
>           from TkTools.dialog

>           meth init(master:Master)
>              TkTools.dialog,tkInit(master:  Master
>                                    title:   Configure.title#': About'
>                                    buttons: ['Okay'#tkClose]
>                                    focus:   1
>                                    pack:    false
>                                    default: 1)
>              Title = {New Tk.label tkInit(parent:     self
>                                           font:       AboutFont
>                                           text:       Configure.title
>                                           foreground: blue)}

>              Author = {New Tk.label tkInit(parent: self
>                                            text: ('Christian Schulte\n' #
>                                                   '<schulte@ps.uni-sb.de>\n'))}
>           in
>              {Tk.send pack(Title Author side:top expand:1 padx:BigPad pady:BigPad)}
>              About,tkPack
>           end

>        end

>        class OkayDialog
>           from TkTools.dialog

>           meth init(master:M title:T okay:O)
>              TkTools.dialog,tkInit(master:  M
>                                    title:   Configure.title#': '#T
>                                    buttons: ['Okay'#O 'Cancel'#tkClose]
>                                    pack:    false
>                                    default: 1)
>           end
>        end

>        proc {Error M T}
>           {Wait {New TkTools.error tkInit(master:M text:T)}.tkClosed}
>        end

>        class AddCompany
>           from OkayDialog
>           prop final
>           meth init(master:M agents:AS company:C)

>              proc {Okay}
>                 AddC={Entry tkReturnAtom(get $)}
>              in
>                 if {Dictionary.member AS AddC} then
>                    {Error self 'Company '#AddC#' already exists.'}
>                 else C=AddC {self tkClose}
>                 end
>              end

>              OkayDialog,init(master:M title:'Add Company' okay:Okay)
>              Frame = {New TkTools.textframe tkInit(parent:self text:'Add Company')}
>              Name  = {New Tk.label tkInit(parent:Frame.inner text:'Company:')}
>              Entry = {New Tk.entry tkInit(parent:Frame.inner bg:TextBg
>                                           width:BigTextWidth)}
>           in
>              {Tk.batch [pack(Name Entry side:left padx:Pad pady:Pad)
>                         pack(Frame) focus(Entry)]}
>              AddCompany,tkPack
>           end

>        end

>        class RemCompany
>           from OkayDialog
>           prop final

>           meth init(master:M agents:AS company:C)
>              proc {Okay}
>                 RemC={Entry.entry tkReturnAtom(get $)}
>              in
>                 if {Dictionary.member AS RemC} then C=RemC {self tkClose}
>                 else {Error self 'There is no company with name: '#RemC#'.'}
>                 end
>              end

>              OkayDialog, init(master:M title:'Remove Company' okay:Okay)
>              Frame = {New TkTools.textframe tkInit(parent:self
>                                                    text:'Remove Company')}
>              Name  = {New Tk.label tkInit(parent:Frame.inner text:'Company:')}
>              Entry = {New Widgets.entryChooser
>                       tkInit(parent:Frame.inner
>                              toplevel:self.toplevel
>                              entries:{Dictionary.keys AS})}
>           in
>              {Tk.batch [pack(Name Entry side:left padx:Pad pady:Pad)
>                         pack(Frame) focus(Entry.entry)]}
>              RemCompany,tkPack
>           end

>        end

>        class AddDriver
>           from OkayDialog
>           prop final

>           meth init(master:M agents:AS company:C driver:D city:Y)
>              proc {Okay}
>                 AddC={EntryC.entry tkReturnAtom(get $)}
>                 AddD={EntryD       tkReturnAtom(get $)}
>                 AddY={EntryY.entry tkReturnAtom(get $)}
>              in
>                 if {Dictionary.member AS AddC} then
>                    if {Member AddD {Dictionary.get AS AddC}} then
>                       {Error self 'Driver '#AddD#' already exists for company '#
>                                   AddC#'.'}
>                    elseif {Country.isCity AddY} then
>                       C=AddC D=AddD Y=AddY  {self tkClose}
>                    else
>                       {Error self 'There is no city '#AddY#'.'}
>                    end
>                 else {Error self 'There is no company '#AddC#'.'}
>                 end
>              end

>              OkayDialog, init(master:M title:'Add Driver' okay:Okay)
>              Frame  = {New TkTools.textframe tkInit(parent:self text:'Add Driver')}
>              NameC  = {New Tk.label tkInit(parent:Frame.inner text:'Company:')}
>              EntryC = {New Widgets.entryChooser
>                        tkInit(parent:   Frame.inner
>                               toplevel: self.toplevel
>                               entries:  {Dictionary.keys AS})}
>              NameD  = {New Tk.label tkInit(parent:Frame.inner text:'Driver:')}
>              EntryD = {New Tk.entry tkInit(parent:Frame.inner bg:TextBg)}
>              NameY  = {New Tk.label tkInit(parent:Frame.inner text:'City:')}
>              EntryY = {New Widgets.entryChooser
>                        tkInit(parent:   Frame.inner
>                               toplevel: self.toplevel
>                               entries:  Country.cities)}
>           in
>              {Tk.batch [grid(NameC  row:0 column:0 sticky:w)
>                         grid(NameD  row:1 column:0 sticky:w)
>                         grid(NameY  row:2 column:0 sticky:w)
>                         grid(EntryC row:0 column:1 sticky:we)
>                         grid(EntryD row:1 column:1 sticky:we)
>                         grid(EntryY row:2 column:1 sticky:we)
>                         pack(Frame)]}
>              AddDriver,tkPack
>           end

>        end

>        class RemDriver
>           from OkayDialog
>           prop final

>           meth init(master:M agents:AS company:C driver:D)
>              Companies = {Filter {Dictionary.keys AS}
>                           fun {$ C}
>                              {Dictionary.get AS C}\=nil
>                           end}

>              proc {Okay}
>                 RemC={EntryC.entry tkReturnAtom(get $)}
>                 RemD={EntryD.entry tkReturnAtom(get $)}
>              in
>                 if {Dictionary.member AS RemC} then
>                    if {Member RemD {Dictionary.get AS RemC}} then
>                       C=RemC D=RemD {self tkClose}
>                    else
>                       {Error self 'No driver '#RemD#' for company '#RemC#'.'}
>                    end
>                 else {Error self 'There is no company '#RemC#'.'}
>                 end
>              end

>              OkayDialog, init(master:M title:'Remove Driver' okay:Okay)
>              Frame  = {New TkTools.textframe tkInit(parent:self text:'Remove Driver')}
>              NameC  = {New Tk.label tkInit(parent:Frame.inner text:'Company:')}
>              EntryC = {New Widgets.entryChooser
>                        tkInit(parent:   Frame.inner
>                               toplevel: self.toplevel
>                               entries:  Companies
>                               action:   proc {$ A}
>                                            {EntryD entries({Dictionary.get AS A})}
>                                         end)}
>              NameD  = {New Tk.label tkInit(parent:Frame.inner text:'Driver:')}
>              EntryD = {New Widgets.entryChooser
>                        tkInit(parent:   Frame.inner
>                               toplevel: self.toplevel
>                               entries:  {Dictionary.get AS Companies.1})}
>           in
>              {Tk.batch [grid(NameC  row:0 column:0 sticky:w)
>                         grid(NameD  row:1 column:0 sticky:w)
>                         grid(EntryC row:0 column:1 sticky:we)
>                         grid(EntryD row:1 column:1 sticky:we)
>                         pack(Frame)]}
>              RemDriver,tkPack
>           end

>        end

>     end