Fix Qt6 MOC compilation on some platforms.

That was super painful.  It seems that some of the Quackle types that
have custom operator==() give fits to the MOC compiler when those
types are used as arguments for slots and/or signals (or maybe it's
only when they're connected in a certain way...frankly, I never did
figure this out precisely to my satisfaction).  The compilers provide
very little help in resolving this problem.

Once I understood the problem, VS22 was giving me just the tiniest
morsel, enough that I could hunt down the offending slot/signal
(it wasn't even giving me the name of the slot/signal...just the type
it was trying to use).  I've changed all offending functions to use
const pointers to types instead of const references, and this makes
Qt happy.

I couldn't find any info on the web directly about this, but here's
the closest I did find, which suggests that this is related to
increased functionality in Qt6 regarding reflection.

https://forum.qt.io/topic/141434/

This fixes my VC++22 x86-64 build.  Hopefully it fixes all of the
others, too.

1 files changed, 2 insertions, 2 deletions

diff --git a/quacker/noteeditor.cpp b/quacker/noteeditor.cpp
index ec30f05..6209506 100644
--- a/quacker/noteeditor.cpp
+++ b/quacker/noteeditor.cpp
@@ -50,9 +50,9 @@ QSize NoteEditor::sizeHint() const
 	return QSize(hint.width(), hint.height() / 2);
 }
 
-void NoteEditor::positionChanged(const Quackle::GamePosition &position)
+void NoteEditor::positionChanged(const Quackle::GamePosition *position)
 {
-	showNote(position.explanatoryNote());
+	showNote(position->explanatoryNote());
 }
 
 void NoteEditor::showNote(const UVString &note)