--- a/DropObject.st Wed Jan 14 21:52:42 2009 +0100
+++ b/DropObject.st Wed Jan 14 21:55:24 2009 +0100
@@ -112,6 +112,13 @@
dropObjectClassFor:someThing
"given something to drag&drop, return an appropriate
dropObject class for it."
+
+ "/ no, no visitor pattern here - I though about it and I think it sucks here.
+ "/ reason: its al local and known here, which DropObjects I am willing to support.
+ "/ addint double dispatch (acceptDropSourceVisitor:) adds a dependency to 6 other classes,
+ "/ and worse: if I ever change my mind to allow for another one, I would have to change
+ "/ that class as well (to add its (accept...) implementaion.
+ "/ So, the typeSwitch below is OK.
someThing isColor ifTrue:[^ DropObject::Color].
someThing isImageOrForm ifTrue:[^ DropObject::Image].
@@ -515,5 +522,5 @@
!DropObject class methodsFor:'documentation'!
version
- ^ '$Header: /cvs/stx/stx/libview2/DropObject.st,v 1.17 2009-01-14 20:52:42 cg Exp $'
+ ^ '$Header: /cvs/stx/stx/libview2/DropObject.st,v 1.18 2009-01-14 20:55:24 cg Exp $'
! !