(FILECREATED "13-Nov-86 14:03:22" {QV}<NOTECARDS>1.3K>NEXT>RHTPATCH146.;2 7957
changes to: (FNS NC.LinkIconWhenMovedFn)
(VARS RHTPATCH146COMS)
previous date: "13-Nov-86 14:00:52" {QV}<NOTECARDS>1.3K>NEXT>RHTPATCH146.;1)
(* Copyright (c) 1986 by Xerox Corporation. All rights reserved.)
(PRETTYCOMPRINT RHTPATCH146COMS)
(RPAQQ RHTPATCH146COMS ((* * Removal of "tsk, tsk" messages.)
(* * Change to NCLINKS)
(FNS NC.LinkIconWhenMovedFn)))
(* * Removal of "tsk, tsk" messages.)
(* * Change to NCLINKS)
(DEFINEQ
(NC.LinkIconWhenMovedFn
(LAMBDA (ImageObject ToWindowStream FromTextStream ToTextStream)
(* rht: "13-Nov-86 14:02")
(* * Called when moving a link icon from FromTextStream to ToWindowStream. Sets the necessary link information up
for card corresponding to ToWindowStream.)
(* * rht 11/18/84: Major hacking. Now checks for all sorts of illegal cases. Either goes ahead with move, converts
link type to "Unspecified", or deletes the new "invisible" link. The code is very similar to
NC.LinkIconWhenCopiedFn except that within-filebox moves are allowed. Also when aborting a move, we must insert a
copy of the link back to take the place of the deleted original. This will all change when imageobj fns can return
DON'T.)
(* * rht 12/12/84: Now just RETFROM's rather than doing the addprocess stuff. Should be cleaner, but still ugly.)
(* * kirk 15Nov85: deleted use of PSA.Database)
(* * rht 3/24/86: Changed call to NC.CoerceToID to NC.CoerceToCard)
(* * kirk 24Mar86: added Dave Newman patch to avoid duplicate links in sketch cards)
(* * rht 7/14/86: Reversed order of tests for WINDOWP and TEXTSTREAMP in computation of NewSourceCard.)
(* * rht 8/11/86: Now only resets NewSourceCard if it was NIL so that moves to a sketch will work.
Now checks if SourceCard = NewSourceCard in which case we're moving within a card. Don't make a new link in that
case.)
(* * rht 10/5/86: Undid change fgh 6/30/86: now allows copies of links across notefiles.)
(* * rht 11/13/86: Removed "tsk, tsk" messages.)
(DECLARE (GLOBALVARS NC.SystemLinkLabels NC.UnspecifiedLinkLabel))
(LET (Label (Link (NC.FetchLinkFromLinkIcon ImageObject))
SourceCard DestinationCard NewSourceCard NewLabel NewDisplayMode OldDisplayMode
(Window (AND ToWindowStream (WFROMDS ToWindowStream T)))
InsertPos)
(SETQ Label (fetch (Link Label) of Link))
(SETQ NewSourceCard (COND
((TEXTSTREAMP ToTextStream)
(NC.CoerceToCard ToTextStream))
((WINDOWP Window)
(NC.CoerceToCard Window))))
(SETQ SourceCard (fetch (Link SourceCard) of Link))
(SETQ DestinationCard (fetch (Link DestinationCard) of Link))
(SETQ OldDisplayMode (fetch (Link DisplayMode) of Link))
(COND
((AND (NULL NewSourceCard)
(NULL FromTextStream)
(NULL ToTextStream)) (* We must be moving within a sketch.)
(SETQ NewSourceCard SourceCard))
((TEXTSTREAMP ToTextStream) (* If it's a text copy, then compute position to
insert link at.)
(SETQ InsertPos (NC.CharPosFromTextObject (TEXTOBJ ToTextStream)))))
(COND
((NULL NewSourceCard) (* Trying to copy to a non NoteCard stream)
(NC.PrintMsg Window NIL (CONCAT "Tried to move a NoteCards link icon"
" to a non-NoteCards stream!!."
(CHARACTER 13)))
(RETFROM (QUOTE TEDIT.MOVE)
NIL T))
((NULL (NC.LinksSupportedP NewSourceCard (QUOTE (Local))))
(NC.PrintMsg Window NIL (CONCAT "Tried to move a NoteCards link icon"
" to a NoteCard that"
" does not support links!!."
(CHARACTER 13)))
(RETFROM (QUOTE TEDIT.MOVE)
NIL T))
((AND (FMEMB Label (QUOTE (FiledCard SubBox)))
(NEQ (NC.RetrieveType NewSourceCard)
(QUOTE FileBox))) (* Move from filebox to non-filebox.)
(NC.PrintMsg NIL NIL (CONCAT
"Tried to move filedcard or subbox link to a non-filebox."
(CHARACTER 13)
"Link type of copy set to 'Unspecified'."
(CHARACTER 13)))
(SETQ NewLabel NC.UnspecifiedLinkLabel)
(SETQ NewDisplayMode (create LINKDISPLAYMODE
copying OldDisplayMode SHOWTITLEFLG ← T SHOWLINKTYPEFLG ← T))
)
((AND (NEQ (NC.RetrieveType SourceCard)
(QUOTE FileBox))
(EQ (NC.RetrieveType NewSourceCard)
(QUOTE FileBox))) (* Move from non-filebox to filebox.)
(NC.PrintMsg NIL NIL (CONCAT "Can't move links from non-filebox to filebox."
(CHARACTER 13)
"Try using PutCardsHere."
(CHARACTER 13)))
(RETFROM (QUOTE TEDIT.MOVE)
NIL T))
((AND (EQ (NC.RetrieveType NewSourceCard)
(QUOTE FileBox))
(NEQ NewSourceCard SourceCard)
(for Link1 in (NC.FetchToLinks NewSourceCard)
thereis (AND (NC.ChildLinkP Link1)
(EQ DestinationCard (fetch (Link DestinationCard)
of Link1)))))
(* Move to a filebox already containing this child.)
(NC.PrintMsg NIL NIL (CONCAT (NC.RetrieveTitle DestinationCard)
" not moved: already appears as a child of "
(NC.RetrieveTitle NewSourceCard)
(CHARACTER 13)))
(RETFROM (QUOTE TEDIT.MOVE)
NIL T))
((AND (EQ Label (QUOTE SubBox))
(NEQ NewSourceCard SourceCard)
(OR (EQ NewSourceCard DestinationCard)
(NOT (NC.NotDaughterP DestinationCard NewSourceCard
(FUNCTION NC.ChildLinkP)))))
(* Move to a filebox causes a cycle.)
(NC.PrintMsg NIL NIL (CONCAT "Couldn't move " Link " because of subbox cycle."
(CHARACTER 13)))
(RETFROM (QUOTE TEDIT.MOVE)
NIL T))
((AND (FMEMB Label NC.SystemLinkLabels)
(NOT (FMEMB Label (QUOTE (FiledCard SubBox))))
(NEQ NewSourceCard SourceCard)) (* Move of system link outside of own card.)
(NC.PrintMsg NIL NIL (CONCAT "Tried to copy system link." (CHARACTER 13)
"Link type of copy set to 'Unspecified'."
(CHARACTER 13)))
(SETQ NewLabel NC.UnspecifiedLinkLabel)
(SETQ NewDisplayMode (create LINKDISPLAYMODE
copying OldDisplayMode SHOWTITLEFLG ← T SHOWLINKTYPEFLG ← T))
))
(if (EQ SourceCard NewSourceCard)
then (* Moving within a card, so just reposition Link in
ToLinks list.)
(AND (NC.TEditBasedP SourceCard)
(IMAGEOBJPROP ImageObject (QUOTE LinkBeingMovedWithinCard)
Link))
(NC.AddToLink Link (NC.LinkAtCharPos InsertPos ToTextStream)
T)
else (IMAGEOBJPROP ImageObject (QUOTE LinkBeingMoved)
Link)
(NC.FillInLinkIcon ImageObject (OR NewLabel Label)
DestinationCard NewSourceCard (OR NewDisplayMode
OldDisplayMode)
(NC.LinkAtCharPos InsertPos ToTextStream))))))
)
(PUTPROPS RHTPATCH146 COPYRIGHT ("Xerox Corporation" 1986))
(DECLARE: DONTCOPY
(FILEMAP (NIL (557 7875 (NC.LinkIconWhenMovedFn 567 . 7873)))))
STOP