ATTACHEDWINDOWAnInterlisp-DpackageformanipulatingwindowsingroupsWrittenby:RichardR.BurtonLastmodified:June2,1984,vanMelleLocatedon:Sources>ATTACHEDWINDOW.DCOMIntroductionATTACHEDWINDOWisapackagedesignedtomakeiteasytomanipulateagroupofwindowasaunit.StandardoperationslikeMOVE,RESHAPE,OPENandCLOSEcanbedonesothatitappearstotheuserasifthewindowsareasingleentity.Eachcollectionofattachedwindowshasonemainwindowandanynumberofotherwindowsthatare"attached"toit.Movingorreshapingthemainwindowcausesalloftheattachedwindowstobemovedorreshapedaswell.Movingorreshapinganattachedwindowdoesnotaffectthemainwindow.Theinitialmotivationforattachedwindowswastoallowmultiplemenustobeassociatedwiththesamewindowbutthereisnorestrictiononwhatwindowscanbeattached.(ATTACHWINDOWWINDOWTOATTACHMAINWINDOWEDGEPOSITIONONEDGEWINDOWCOMACTION)AssociatesWINDOWTOATTACHwithMAINWINDOWsothatshape,move,close,shrinkandexpandoperationsdonetoMAINWINDOWarealsodonetoWINDOWTOATTACH.ATTACHWINDOWmovesWINDOWTOATTACHtoitspositionrelativetoMAINWINDOWbutdoesnotopenit.EDGEandPOSITIONONEDGEindicatewhereWINDOWTOATTACHistobepositioned.TheargumentEDGEdetermineswhichedge:TOP,BOTTOM,LEFT,orRIGHT.Thedefault,usedifEDGEisNIL,isTOP.TheargumentPOSITIONONEDGEdetermineswherealongedgethewindowispositioned:JUSTIFYmeansthattheattachedwindowistofilltheentireedge.ATTACHWINDOWreshapesthewindowifnecessary;LEFTorRIGHTfortheleftorright(foraTOPorBOTTOMedge);BOTTOMorTOPforthebottomortop(ofaLEFTorRIGHTedge);CENTERforthecenteroftheedge.ThedefaultforPOSITIONONEDGEisJUSTIFY.ThesizethatisfilledbythejustificationincludestheextentofanyotherwindowsthathavealreadybeenattachedtoMAINWINDOW.Thus(ATTACHWINDOWAMW'RIGHT'JUSTIFY)followedby(ATTACHWINDOWBMW'TOP'JUSTIFY)willputBacrossthetopofbothMWandA.WINDOWCOMACTIONprovidesaconvenientwayofsettingthewaytheattachedwindowrespondstorightbuttoning.IfWINDOWCOMACTIONisMAIN,theDOWINDOWCOMFNofWINDOWTOATTACHissettoDOMAINWINDOWCOMFN.IfWINDOWCOMACTIONisHERE,theDOWINDOWCOMFNofWINDOWTOATTACHisnotchanged.IfWINDOWCOMACTIONisLOCALCLOSE,theDOWINDOWCOMFNofWINDOWTOATTACHissettoDOATTACHEDWINDOWCOM2.Otherwise,theDOWINDOWCOMFNofWINDOWTOATTACHissettoDOATTACHEDWINDOWCOM.Thesefunctionsaredescribedbelowinthesectionon"attachedwindowmenucommands."(DETACHWINDOWWINDOWTODETACH)DetachesWINDOWTODETACHfromitsmainwindow.ReturnsadottedpairwhoseCARisEDGEandwhoseCDRisPOSITIONONEDGEifWINDOWTODETACHwasanattachedwindow.ReturnsNILotherwise.ThisdoesnotcloseWINDOWTODETACH.BehavioronstandardwindowoperationsWhenawindowoperation,suchasmovingorclearing,isperformedonawindow,thereisaquestionaboutpî êïc/î!ùïbqî!ùïbïb î3cïbrïbî3iïbî ï_Àsî ï_Àï_Àî0 î"î'î). î1Uî6Óî8Sîî@^îB!îEeîFûîIšîJÂîJÂïS î òïQfî òïQfïQfîÜîkî¬î†îîYî™î!&î#[î$hî(2î,Iî,±î0 î6î7«î=îB‘îDçîGsîJÁîJÁïQfî òïOÀî òïOÀïOÀîôî…îîî˜îî$–î'=î)k î0î1¥î3,î3Œî8ƒî:"î@8îBqîEÇîJÁîJÁïOÀî òïNî òïNïNî7î2îøîdîèî ¡î"\î$Zî(ëî*¼î0˜î2Tî5¤î67î;aî=2îC{îExîJÁîJÁïNî òïLtî òïLtïLtîîîñî:îØî î[î#¯î$ î&´î*p î1"î33î8~î=ÿî@îBîE{îJÁîJÁïLtî òïJÎî òïJÎïJÎî(î¨îk î¤î�îÀî!î& î([î+µî,óî.Ë î5î6æî:î?’îAïîC²îIïJÎî òïHBrî òïHBïHB î´î´ïHBuïHB î#M î,Šî0½ î=Vî=VïHBî òïFßî òïFßïFßîjïFßrïFßîËïFßsïFßîÑïFßîèïD îèïD ïD îWîWïD uïD î$ÛïD sïD î%Jî(Kî(KïD uïD î2ãïD sïD î3Rî4ÿî7´î;Õî?ÓîCyîG—îJ îJ ïD îèïBzîèïBzïBzîJ î‚î ƒî"Áî"ÁïBzuïBz î-YïBzsïBzî.oî1Sî4®î8¯î:íî:íïBzuïBz îIqïBzsïBzîJ îJxîJxïBzîèïArîèïAïA îüïAsïAîîî"î"ïAuïA î-ÖïAsïAî/Éî3iî7áî@‹îHîJŸîJŸïAîèï?¥uîèï?¥ï?¥ î\ï?¥sï?¥î¢îdî¨îlî ßî!Óï?¥îèï=2uîèï=2ï=2îï=2sï=2î©îóîóï=2uï=2 î ï=2sï=2î!î%Mî(‘î(‘ï=2uï=2 î4$ï=2sï=2î4»î6 î7ˆî9( î>¬î?DîA¤îFžîFžï=2uï=2îIÈï=2sï=2îJîJï=2îèï;�îèï;�ï;� î¾îžî2î2ï;�rï;�î ûï;�sï;�î!®î!®ï;�rï;�î'Ùï;�sï;�î(‹î(‹ï;�rï;�î,#ï;�sï;�î,Öî.oî.oï;�rï;�î3)ï;�sï;�î3Úî45î6áî;³î>Âî?øî?øï;�rï;�îD ï;�sï;�îDfîE¦îE¦ï;�rï;�îH2ï;�sï;�îHâîJ îJ ï;�îèï:rîèï:ï:îmï:sï:îxî­îfî!Sî!Sï:uï: î-ï:sï:î.I î7äî=KîB³îGCîJŸîJŸï:îèï8lîèï8lï8lîâî îÀï8lîcï5àrîcï5àï5àîDï5àsï5àî›î%î#Øî'´î/Äî6%î9*îXîD îG îJ!îJ!ï&òîèï%Lîèï%Lï%LîîÒî¨î ´î ´ï%Luï%L î+Lï%Lsï%Lî,ˆî-mî1Gî1Gï%Lrï%L î?1îAîD¶îJ îJ ï%Lîèï#Úîèï#Úï#Úîwï#Úsï#Úî“î hî#3î#3ï#Úrï#Ú î/:î1.î3ùî8qî@ï#Úsï#ÚîAîE•îHñîJŸîJŸï#Úîèï"+îèï"+ï"+îÅîöî<îÇîÓîàî"iî#Íï"+îèï·uîèï·ï·î`ï·sï·î¼î Öî!¿ î'î)*î*kî-Ñî/˜î1½î3ƒî7Äî;’î?ãîA%îCµ îH¯îHõîJîJï·îèï^uîèï^ï^î`ï^sï^îî Wî Wï^rï^î#ˆï^sï^î%mî&×ï^rï^î(v î3³ï^sï^î5Sî7×î7×ï^uï^ îCjï^sï^îE îG`îHãîJîJï^îèïírîèïíïíî/ïísïíîùî ìî#�î#�ïíuïíî0&ïísïíî1î3ºî3ºïírïíî7ïísïíî8àîvîAPîE~îE~ïÞrïÞîHŠïÞsïÞîHâîJ îJ ïÞîèïlrîèïlïlîDïlsïlîðî!îîïlrïlî!…ïlsïlî#0î&Šî&Šïlrïl î2Lïlsïlî3øî7Rî7Rïluïl îCïlsïlîD¿îHîJ îJ ïlîèï½îèï½ï½î1î‚îÚîáîáï½rï½î"mï½sï½î"Å î)î)kî,Uî/Vî1œî4Óî4Óï½uï½ îCnï½rï½îCËï½î òï rqî òï rï rî î�î³î$Ï î.ï rrï rî.ï rî òï~sî òï~ï~îçîðîö îPî^îëî$ºî&]î+»î-î3£î5‡î6�î;îî?Tî@žîA§îGîJÁîJÁï~ ö êq?€[Ç0whetherornotthatoperationalsobeperformedonthewindowsattachedtoitorperformedonthewindowitisattachedto.Thefollowingarethedefaultbehaviorsofmainandattachedwindowsunderthewindowoperationswheninvokedprogrammatically,e.g.,fromthefunctionsMOVEW,SHAPEW,etc.ThebehaviorwhenanoperationisinvokedfromthewindowmenudependsontheWINDOWCOMACTIONargumenttoATTACHWINDOW,orultimatelythewindow'sDOWINDOWCOMFNproperty.Mentionof"menu"belowassumesthatthewindowwasattachedusingthedefault(NIL)WINDOWCOMACTION.Thebehaviorforanyparticularoperationcan,ofcourse,bechangedforparticularwindowsbysettingthestandardwindowproperties(e.g.,MOVEFNorCLOSEFN)oftheparticularattachedwindow.Move:Ifthemainwindowmoves,allattachedwindowsmovewithit,andtherelativepositioningbetweenthemainwindowandtheattachedwindowsismaintained.Iftheregionisdeterminedinteractively,thepromptregionforthemoveistheunionoftheextentofthemainwindowandallattachedwindows.MOVEWmovesanattachedwindowwithoutaffectingthemainwindow.TheMovecommandinthewindowmenuisbydefaultpassedontothemainwindow,sothatallwindowsinthegroupmove.Reshape:Ifthemainwindowisreshaped,theminimumsizeofitandallofitsattachedwindowsisusedastheminimumofthespacefortheresult.Anyspacegreaterthantheminimumisdistributedamongthemainwindowanditsattachedwindows.SHAPEWreshapesanattachedwindowindependently.TheShapecommandinthewindowmenuisbydefaultpassedontothemainwindow.Close:Ifthemainwindowisclosed,alloftheattachedwindowsareclosedalsoandthelinksfromtheattachedwindowstothemainwindowarebroken.Thisisnecessaryforthewindowstobegarbagecollected.CLOSEWclosesanattachedwindowwithoutaffectingthemainwindow.Closeinthewindowmenuisbydefaultpassedontothemainwindow.IfWINDOWCOMACTIONofLOCALCLOSEwasspecifiedinthecalltoATTACHWINDOW,themenuCloseoperatesindependently.Notethatclosinganattachedwindowdoesnotdetachit.Open:Ifthemainwindowisopened,itopensallattachedwindowsandreestablisheslinksfromthemtothemainwindow.Attachedwindowscanbeopenedindependentlyandthisdoesnotaffectthemainwindow.Shrink:Thecollectionofwindowsshrinksasagroup.TheSHRINKFNsoftheattachedwindowsareevaluatedbuttheonlyicondisplayedistheoneforthemainwindow.{Howdoesthesystemknowthattheattachedwindowsareshrunkenratherthanclosed?Itdoesn't.Doesthismakeanydifference?}Redisplay:Themainorattachedwindowscanberedisplayedindependently.Totop:Ifanymainorattachedwindowisbroughttothetop,alloftheotherwindowsarebroughttothetopalso.Expand:Expandinganyofthewindowsexpandsthewholecollection.Scrolling:Allofthewindowsinvolvedinthegroupscrollindependently.Clear:Allwindowsclearindependentlyofeachother.AttachedwindowmenucommandsThequestionofhowtohandlethewindowcommandmenuofanyparticularwindow(eitherbyrightbuttoningorbyacalltothefunctionDOWINDOWCOM)ishandledbythewindow'sDOWINDOWCOMFNproperty.TheWINDOWCOMACTIONargumenttoATTACHWINDOWî êïc8î òïaßsî òïaßïaßîî¸îî°î°îVî!#î'¿î) î+Ûî1bî6µî8?î9pî;îA«îC�îEÇîJÁîJÁïaßî òï`9î òï`9ï`9î .î �îßîÊî7îõîçî "î"hî&óî- î.ªî2 î4ªî:î?šîC‚îEÇîJÁîJÁï`9î òï^“î òï^“ï^“ îlîòîî%î'»î*óî-$î2ïî2ïï^“rï^“î8™ï^“sï^“î9Iî9Iï^“rï^“î?Lï^“sï^“î?üîBï^“î òï[Óî òï[Óï[Óî½î^îîìî$î&eî,–î0ñî4Dî:aî?5îE–îH�îJÁîJÁï[Óî òïZyuî òïZyïZyîjïZysïZyîÄî‚îÂîÂïZyrïZy î'ÁïZysïZyî(bî)² î.¬î0pî4ëî4ëïZyrïZy î@(ïZysïZyî@‚îDôîENîI„îJ¯îJ¯ïZyî òïXÔî òïXÔïXÔîîàîýîœîÍî"Çî%Eî*Žî.î09î4°î5)ïXÔrïXÔî7µïXÔsïXÔî8†î8†ïXÔuïXÔîH"ïXÔsïXÔîHïXÔî òïVî òïVïVî ·îPîzî î&î$7î'î(­î-@î/î4wî6¡ î<¿îBXîDAîH‘îJÂîJÂïVî òïTnî òïTnïTnî\îV îšîÆîÆïTnrïTnî%ïTnsïTnî%pî'î'ïTnrïTnî-¯ïTnsïTnî.€î0 î2< î8>î=‡îB†ïTnî òïQèvî òïQèïQèîKïQèsïQèî+îžîîMî�îbîÆî!­î'%î,xî/öî2äî4‰î7î9aî>) îEîJ îJ ïQèîèïP!îèïP!ïP!î¡îwîùî î!Ãî'”î-šî/` î73î8î9ðî<©îADîC îJ îJ ïP!îèïN{îèïN{ïN{ îÑîîÅî"Üî$ðî'&î*ºî+ýî.3î1ýî3�î5Ãî9»î;Kî=�î@ÓîEÒîH_îJ îJ ïN{îèïLÕîèïLÕïLÕî1î´ïLÕîèïJIrîèïJIïJIîïJIsïJIîOî·î™î%†î+Äî2Úî;�î?WîCçîJŸîKvîKvïJIîèïHšîèïHšïHšî¥îuî¹îMî “î%¡î)hî*ºî,�î1(î5rî7_î8óî;9î>›îDîE¬îH_îJ îJ ïHšîèïFôîèïFôïFôîfîæîîéî ~ïFôî òïDnvî òïDnïDnîáïDnsïDnîÁî$îmî½î�îãî#Óî&î+ýî.žî07î1„î4î5öî7�î9jî>âîD4îE•îHŠîJ îJ ïDnîèïB§îèïB§ïB§îZî¾îŠîûî Âî#î%ƒî)¶î*Oî-dî1+î5Ùî9î;‚îAæîCd îJ!îJ!ïB§îèïAîèïAïAî>îoî½î·î!@î"ìî(5î-¸ïAîèï>urîèï>uï>uîòï>usï>uîÞîƒî î'Ãî-º î:iî;Vî>ÈîCçîJŸîJŸï>uîèï<Æîèï<Æï<Æîhî™î“îEîƒîQî#Èî'þî)Öî+Vî-‡î0Õî5Ôï<Æî òï:@vî òï:@ï:@î3ï:@sï:@î+îµî0î‘îùîÕîOî!Õî#Óî%„î'æî-uî2ßî5Bî9pîøîAZîDªîGðîJ îJ ï:@îèï8yîèï8yï8yî3î³î5îiî!¹î&µî(Ýî-¸î.î0þî2>î8#î:5î³îC"îHsîHËîJ îJ ï2˜îèï1>uîèï1>ï1>î`ï1>sï1>îÐî&î&ï1>rï1> î%ôï1>sï1>î&eî(ƒî,Þî.6î0î2'î3~î3~ï1>rï1> î=}ï1>sï1>î>3î@îCîFîJîJï1>îèï/™îèï/™ï/™ î îdî«îJî#´î%wî*Àî/ºî2»î2»ï/™wï/™î4©ï/™sï/™î5î97î:dï/™î òï-vî òï-ï-î ï-sï-îðîRî¥îàî îÔî&î þî"<î%õî'Ëî-3î2uî4ò î<Èî?ðîCîF[îGðîJ îJ ï-îèï+Lîèï+Lï+Lî6î5ï+Lîèï(Œîèï(Œï(Œî“îînî1î#ß î,¬î/5î1§î4¨î6îî:Šî<»î@ îEï(Œî òï&vî òï&ï&îâï&sï&îÞîlîM î—îLî »î%yî'Eî(„î,Âî-Pî01î01ï&rï&î7µï&sï&î8Ñî:†î<íîB�îGïîJ îJ ï&îèï$?îèï$?ï$?îåî=îsîcî <î&.î'qî)¨î,*î.?î0uî3Éî9î=î@ îB@îF‘îJ îJ ï$?îèï"™îèï"™ï"™îÒîMîàî ¨î#î):î-bî0£î5yî6î7¯î<Ýî=€îA#îCßîG®îJ!îJ!ï"™îèï óîèï óï ó îï óî òïmvî òïmïmî›ïmsïmîaî¹îcî™î/î�î#Åî&,î'Ù î.¶ î7#ïmî òïÆvî òïÆïÆî‚ïÆsïÆîLî¨îõî`îšî4î–î"Dî#�î(wî*î,:î.Ñî0¡î2$î4Xî7Êî=î?;îD"îE±îGåîJ îJ ïÆîèïÿîèïÿïÿîŠïÿî òïyvî òïyïyî\ïysïyî"îzîîoîîîî"Vî'eî)•î-N î3ºî4î4jî4pïyî òïÒvî òïÒïÒîAïÒsïÒîî_îmîìîîTî!mî"áî%î(Áî,N î4»ïÒî òï+vî òï+ï+îï+sï+îåîóî+îc î!Êî#Iî&Uî)Éï+î òï¿qî òï¿ï¿î=îYî€î(Õï¿rï¿î(Ûï¿î òï Ësî òï Ëï Ëî âî†îWîsî9îÖî!Mî&Žî-î0üî2Îî5‡ î;ÐîAîEŒîG îJÂîJÂï Ëî òï %î òï %ï %îîšîeî_î·î4î"bî(¦î(¦ï %rï % î4Ðï %sï %î6žî8Ùî>òîA½îDëîJÁîJÁï %î òï³rî òï³ï³ îÝï³sï³î}î ­î"Nî&tî&tï³uï³î3 ï³sï³î4®î=î@Uî@Uï³rï³ îJiï³sï³îK@îK@ï³ Ï êq?€[Ç*selectsoneofthefollowingthreefunctionstobetheattachedwindow'sDOWINDOWCOMFNproperty,orleavesthepropertyNILifWINDOWCOMACTIONisHERE,meaningtousethestandardwindowcommandmenu,ignorantofthewindow'sattachments.TheprogrammercaninsteadsupplyherownDOWINDOWCOMFNpropertyifsomeotherbehaviorisdesired.(DOATTACHEDWINDOWCOMATTACHEDWLOCALCLOSEFLG)Thedefault(whenWINDOWCOMACTIONisNIL).Bringsupthewindowcommandmenuandthen,dependinguponthecommandselected,eitherpassesthecommandtothemainwindowofATTACHEDWorperformsitonATTACHEDW.IfLOCALCLOSEFLGisnon-NIL,theCLOSEcommandisappliedtoATTACHEDW.Otherwise,theCLOSEcommandispassedtothemainwindow.ThecommandsMOVE,RESHAPE,SHRINKandBURYarepassedtothemainwindow.TheothercommandsareperformedonATTACHEDW.(DOATTACHEDWINDOWCOM2ATTACHEDW)UsedwhenWINDOWCOMACTIONisLOCALCLOSE.Performs(DOATTACHEDWINDOWCOMATTACHEDWT)sothatthecommandCLOSEisperformedonATTACHEDW.(DOMAINWINDOWCOMFNATTACHEDW)UsedwhenWINDOWCOMACTIONisMAIN.PerformsDOWINDOWCOMonthewindowthatistheMAINWINDOWpropertyofATTACHEDW.Inotherwords,assumingtheDOWINDOWCOMFNofthemainwindowhasn'tbeenchanged,thispassesallwindowcommandsontothemainwindow.AttachingmenustowindowsATTACHEDWINDOWsupersedestheMENUEDWINDOWpackageandusersofitareencouragedtoconverttheircode.Thefollowingfunctionsareprovidedtoassociatemenustowindows.(ATTACHMENUMENUMAINWINDOWEDGEPOSITIONONEDGE)CreatesawindowthatcontainsthemenuMENU(bycallingMENUWINDOW,seebelow)andattachesittothewindowMAINWINDOWonedgeEDGEatpositionPOSITIONONEDGE.(MENUWINDOWMENUVERTFLG)ReturnsaclosedwindowthathasthemenuMENUinit.IfMENUisalist,amenuiscreatedwithMENUasitsitems.Otherwise,MENUshouldbeamenu.ThereturnedwindowhastheappropriateRESHAPEFN,MINSIZEandMAXSIZEwindowpropertiestoallowitsuseinawindowgroup.VERTFLGisprovidedtoallowconvenientsettingofthedefaultmenushapeandwillonlybeconsideredifboththeMENUROWSandMENUCOLUMNSfieldsofMENUareNIL.IfVERTFLGisnon-NIL,theMENUROWSfieldofMENUwillbesetto1;otherwisetheMENUCOLUMNSfieldofMENUwillbesetto1.(CREATEMENUEDWINDOWMENUWINDOWTITLELOCATIONWINDOWSPEC)Createsawindowwithanattachedmenuandreturnsthemainwindow.MENUistheonlyrequiredargument,andmaybeamenuoralistofmenuitems.WINDOWTITLEisastringspecifyingthetitleofthemainwindow.LOCATIONspecifiestheedgeonwhichtoplacethemenu,aswithATTACHWINDOW'sEDGEargument;thedefaultisTOP.WINDOWSPECisaREGION,specifyingaregionfortheaggregatewindow;ifNIL,theuserispromptedforaregion.ThisfunctionissimilartoMENUEDWINDOW'sfunctionMAKEMENUEDWINDOW.However,notethatitisnotanexactreplacement.Inparticular,theMENUWINDOWpropertyisnotused.Examples:(SETQMENUWî êïc8î òïaßsî òïaßïaßîî…îîBî!î|î$Hî%Éî'�î)¿î/ î4àî4àïaßrïaß îCïaßsïaßîCjîI+îJÁîJÁïaßî òï`9î òï`9ï`9î*î·î|î|ï`9rï`9îï`9sï`9î»îJîJï`9uï`9î+æï`9sï`9î,šî.3î.3ï`9rï`9î2&ï`9sï`9î32î8÷î:Òî=uî@îEÇîJÁîJÁï`9î òï^“î òï^“ï^“îkîÀîRî(î£î%Ä î-Êî.mî1a î9[î<î@ÐîE[îGìîJÁîJÁï^“î òï]!rî òï]!ï]! îÝï]!sï]!î´îCî Èî$ûî*î1”î4î;¨î<î<…ï]!î òïZŒrî òïZŒïZŒî•î•ïZŒuïZŒî$û î/æïZŒrïZŒî0ÃïZŒîèïWÃsîèïWÃïWÃî–îîîïWÃuïWÃî*³ïWÃsïWÃî+î,Sî,SïWÃrïWÃî.ßïWÃsïWÃî0 î0jî4�î6vî8­î=¬îCàîG—îJ îJ ïWÃîèïVîèïVïVîXî î�îâî&2î+¦î/ƒî3˜î5êî<:î=Ûî@-îCœîH–îJ!îJ!ïVîèïTÃuîèïTÃïTÃî\ïTÃsïTÃî°îúîTîPîÉîÉïTÃuïTÃî'=ïTÃsïTÃî'×î(+î)Rî)RïTÃuïTà î3\ïTÃsïTÃî3°î4¼î6ÚïTÃrïTÃî8óïTÃsïTÃî9�î;Kî;KïTÃrïTÃî?%ïTÃsïTÃî?yîDCîEOîHâîJîJïTÃîèïSjuîèïSjïSjî\ïSjsïSjîî� îçîÈîÈïSjrïSjî#¢ïSjsïSjî$î)î*5î-Ÿî.üî0Ýî3¦î7Ôî8Kî:‹î?áî?áïSjrïSjîCYïSjsïSjîDîDïSjrïSjîIƒïSjsïSjîJîJïSjîèïQùrîèïQùïQùîòïQùsïQùîþîŽîŽïQùrïQùîêïQùsïQùîõî!…î'›î*Tî-äî2Kî98î:Cî=ÓîCîJ îJ ïQùîèïPJîèïPJïPJîî îxîxïPJuïPJî#ÒïPJsïPJî$)ïPJrïPJî$/ïPJî òïM¾î 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îîï,wuï,wî9îï,wrï,wî÷ï,wîèï)®sîèï)®ï)®îõî÷îùîøî!�î#éî&î)Öî)Öï)®uï)®î.Qï)®sï)®î.¯î04î1¸î3î3ï)®uï)®î7�ï)®sï)®î7ëî9.î:0î<›î=žîAUîB˜îG6îJ!îJ!ï)®îèï(Tuîèï(Tï(Tîrï(Tsï(Tîöîoîî8î¼ î î ï(Tuï(Tî#ªï(Tsï(Tî$.î'°î)<î*Mî-žî."î0oî4Ïî8Äî:Ôî< îBˆîBˆï(Trï(TîI‚ï(Tsï(TîJîJï(Tîèï&ãrîèï&ãï&ãîÉï&ãsï&ãîÙînînï&ãrï&ãî Oï&ãsï&ãî!_î'y î0ïî3­î8ðî<…î@îBØîD¿îJ îJ ï&ãîèï%4îèï%4ï%4îîrîrï%4uï%4î8ï%4sï%4î”îÖî"yî#þî'z î.Fî2î4î6Dî:¿î>uîB+îD¸îG7îJ!îJ!ï%4îèï#Žîèï#Žï#Žîã îÍî9î}îçîçï#Žrï#Žî(¢ï#Žsï#Žî)2î+óî+óï#Žrï#Ž î7¾ï#Žsï#Žî8Oî< î=Ïî=Ïï#Žuï#ŽîBJï#Žsï#ŽîBÚîE8îE8ï#Žrï#ŽîGÄï#Žsï#ŽîHsîHËîJ îJ ï#Žîèï"4uîèï"4ï"4î2ï"4sï"4î}î€îžï"4rï"4î·ï"4sï"4îHîýîýï"4rï"4î#÷ï"4sï"4î$Bî&‹î'»î'»ï"4uï"4î+Eï"4sï"4î+�î-€î.Óî0[î1Œî2Åî7[î9î9ï"4rï"4 îBzï"4sï"4îBÅîEîF>îF>ï"4uï"4îIÈï"4sï"4îJîJï"4îèï �îèï �ï �îcî&îî•î¢ï �î òïrî òïïî¾î¾ïuïîñ î*î1” î9úïrïî:×ïîèï:sîèï:ï:îêî/îqî¤î ¯î&@î*:î- î1Öî4Oî7åî=~î>î>ï:uï:îB™ï:sï:îC9îD¿îG7îJ!îJ!ï:îèï”îèï”ï”î~îîÊî!Ùî#Õî% î(öî*Åî+úî.Aî0î3ðî7úî8‹î8‹ï”uï” îC=ï”sï”îCÎîEEîFzîJ îJ ï”îèïîîèïîïî î_îÂî’îOî³î#3î(·î)Aî)Aïîuïîî0Ûïîsïîî1fî6ßî9Cî<�î>˜îB§îDZîGðîJ!îJ!ïîîèïHîèïHïHîî˜î•î•ïHrïH î%!ïHsïHî&hî&hïHuïHî*{ïHsïHî*æî1jî3®î88î9ˆî9ˆïHrïHî3sî òï>3ï>3îæî§îëîîmîî"Æî&˜ î.î/Ûî4Àî6úî:”î@îAÕîDËîHEîIÅîJÂîJÂï>3î òï<�î òï<�ï<�îiîî?î½î!"î!Žî# î)Üî,šî..î0î2 î3òî5…î9wî:ˆî> îCîD¬îFðîI6îJÁîJÁï<�î òï:çî òï:çï:çî YîÊîOî×îfî Fî&[î,]î.kî08î1ïî3#î8€î;aî>7î@ËîBÄîHéîJÁîJÁï:çî òï9Aî òï9Aï9AîHîÊ î/ï9Aî òï6µrî òï6µï6µî9î9ï6µuï6µ î"vî(Wî,Š î4ðï6µrï6µî5Íï6µîèï3ìsîèï3ìï3ìîî|îôî!Ûî' î-kî0„î0„ï3ìuï3ì î;ï3ìsï3ìî;úîA/îB…îCæ îJ îJxîJxï3ìîèï2Fîèï2Fï2Fî•î“îÕîî"[î#ßî&î(]î)ìî)ìï2Fuï2F î4„ï2Fsï2Fî58î7ƒî7ƒï2Frï2Fî?áï2Fsï2Fî@=îB0îC´îC´ï2Frï2FîDšï2Fsï2FîENîGÚîJ!îJ!ï2Fîèï0 îèï0 ï0 î î ï0 rï0  îÈï0 sï0 îDîóîóï0 rï0 î eï0 sï0 î áî"…î&çî*#î/vî/òî2¿î7Ýî9?î:Îî=èî=èï0 uï0 îC€ï0 sï0 îCüîG+îJ!îJ!ï0 îèï.úîèï.úï.úîî%î‚î© î!î&7î'Ÿî,?î/`î2�î3Òî5:î;î<®î@]îA¯îEîJ îJxîJxï.úîèï- uîèï- ï- îï- sï- î_înî/î[î˜îÁî‚î!î$çî)3î*pî,0î.]î/™î/™ï- uï-  î8 ï- sï- î9 î;î>“î@âîCšîEZîIîJîJï- îèï+ûîèï+ûï+ûîÀîßîfîêîêï+ûuï+û î#àï+ûsï+ûî$fî%Óî)î-Áî0!î5Jî6¬î8î<îB5îB5ï+ûrï+ûîDÁï+ûsï+ûîEGîJ îJ ï+ûîèï*Uîèï*Uï*Uîîîaîî!ï*Uî òï'Érî òï'Éï'Éî¾î¾ï'Éuï'É î$$ï'Érï'Éî%ï'Éîèï%sîèï%ï%îŸîÐîî!Òî'$î(Wî+" î1[î4Fî4Fï%uï% î>Þï%sï%î?ŽîBîEÒîFÿï%î òï!µqî òï!µï!µîC î£î¿î%Èî-vï!µrï!µî-|ï!µî òïÁsî òïÁïÁî×îzî¤îî”î• î#˜î'Xî(Þî)ßî-1î2/î3Éî5Oî7îî'Íî*æî-9 î3/î9tî:Ôî?,îCxîGðîJ!îJ!ïsîèïÍîèïÍïÍî{î¦î¼î €î €ïÍrïÍî&úïÍsïÍî'½î(*î+î/î0oî4î5�î7âî;Eî@ªîAîDîJ!îJ!ïÍîèï'îèï'ï'î¾î6î· î_î �î%4î)hî+wî.ƒî3aï'îèï ¤tîèï ¤ï ¤îùîOîµîiîAîî!”î%èî'5 î-&î1qî5æî8î9\î;Ôî=‰îAÕîBÜîFèîHîJîJï ¤îèï Kîèï Kï Kî#îVîlîáîèîæî î#/î'Ñî(î, î-Êî1¬î6Wî98î<<î?1î@òîD¾ï Kîèï›sîèï›ï›î·î·ï›rï›î1ï›sï›î‰îÇîÇï›rï›îSï›sï›î î#àî&[î((î*Yî.lî1¯ î8Çï› å êq?€[ǦMAINWINDOW:pointerfromattachedwindowstothemainwindowofthegroup.Thislinkisnotavailableifthemainwindowisclosed.ATTACHEDWINDOWS:pointerfromawindowtoitsattachedwindows.Forfunctionalaccesstothisinformation,thefunctionATTACHEDWINDOWSisdocumentedbelow.WHEREATTACHED:forattachedwindows,alistwhosefirstelementistheEDGEandwhosesecondelementisthePOSITIONONEDGEthatdeterminetheplacementconditionforthiswindow.TheTOTOPFNpropertyonattachedwindowsandthepropertiesTOTOPFN,DOSHAPEFN,MOVEFN,CLOSEFN,OPENFN,SHRINKFN,EXPANDFNandCALCULATEREGIONFNcontainelementsthatimplementthewindowmanipulationfacilities.Careshouldbeusedinmodifyingorreplacingtheseproperties.NotesAwindowscanbeattachedtoonlyoneotherwindow.Attachingawindowtoasecondwindowwilldetachitfromthefirst.Attachmentscannotformloops.Thatis,awindowcannotbeattachedtoitselfortoawindowthatisattachedtoit.ATTACHWINDOWwillgenerateanerrorifthisisattempted.Attachedwindowscanhaveotherwindowsattachedtothem.Thus,itispossibletoattachwindowAtowindowBwhenBisalreadyattachedtowindowC.Similarly,ifAhasotherwindowsattachedtoititcanstillbeattachedtoB.Movingthemainwindowwillmaintaintherelationshipsbetweenwindows.ReshapingthemainwindowwillrestoretheconditionsestablishedbythecalltoATTACHWINDOW,movingthemainwindowdoesnot.Thus,ifAisattachedtothetopofBandthenmovedbytheuser,itsnewpositionrelativetoBwillbemaintainedifBismoved.IfBisreshaped,AwillbereshapedtothetopofB.Additionally,if,whileAismovedawayfromthetopofB,CisattachedtothetopofB,CwillpositionitselfabovewhereAusedtobe.Theattachedwindowscanbeclosedbythemselves.Theywillbereopenedwheneverthemainwindowisreshaped.TheclosefnforthemainwindowbreaksthelinksfromtheattachedwindowstoittoallowthemtobeGC'ed.Thereopenfnforthemainwindowreestablishestheselinks.Thusitispossibletoreopenaclosed,attachedwindowandnothaveitlinkedtoitsmainwindow.Exampleofuse(ATTACHWINDOWATWINMAINWIN'TOP'CENTER)willmoveATWINtoimmediatelyaboveMAINWINandmaintainitsattachmentthere.(ATTACHWINDOWNOTHERWINMAINWIN'TOP'CENTER)willmoveNOTHERWINtoimmediatelyaboveATWINandmaintainitsattachmentthere.Miscellaneousfunctions(WINDOWREGIONWINDOW)ReturnsthescreenregionoccupiedbyWINDOWanditsattachedwindows,ifithasany.(WINDOWSIZEWINDOW)ReturnsthesizeofWINDOWanditsattachedwindows,ifithasany.(MINATTACHEDWINDOWEXTENTWINDOW)î 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