Gradually typed Link

Turn the Link class into a template abstracting over the link's argument and
return types, but provide default template arguments that keep the generic,
unsafe "void* in, sal_IntPtr out" behvior.  That way, individual uses of the
Link class can be updated over time.

All the related macros are duplicated with ..._TYPED counterparts, that
additionally take the RetType (except for LINK_TYPED, which manages to infer the
relevant types from the supplied Member).

(It would have been attractive to change the "untyped" LinkStubs from taking a
void* to a properly typed ArgType parameter, too, but that would cause
-fsanitize=function to flag uses of "untyped" Link::Call.)

Change-Id: I3b0140378bad99abbf240140ebb4a46a05d2d2f8

1 files changed, 6 insertions, 6 deletions

diff --git a/include/vcl/lstbox.hxx b/include/vcl/lstbox.hxx
index 5647f974f396..bd13541337c3 100644
--- a/include/vcl/lstbox.hxx
+++ b/include/vcl/lstbox.hxx
@@ -44,8 +44,8 @@ private:
     sal_uInt16                  mnDDHeight;
     sal_Int32                   mnSaveValue;
     sal_Int32                   m_nMaxWidthChars;
-    Link                        maSelectHdl;
-    Link                        maDoubleClickHdl;
+    Link<>                      maSelectHdl;
+    Link<>                      maDoubleClickHdl;
     sal_uInt16                  mnLineCount;
 
     /// bitfield
@@ -190,10 +190,10 @@ public:
 
     void                DrawEntry( const UserDrawEvent& rEvt, bool bDrawImage, bool bDrawText, bool bDrawTextAtImagePos = false );
 
-    void                SetSelectHdl( const Link& rLink )       { maSelectHdl = rLink; }
-    const Link&         GetSelectHdl() const                    { return maSelectHdl; }
-    void                SetDoubleClickHdl( const Link& rLink )  { maDoubleClickHdl = rLink; }
-    const Link&         GetDoubleClickHdl() const               { return maDoubleClickHdl; }
+    void                SetSelectHdl( const Link<>& rLink )     { maSelectHdl = rLink; }
+    const Link<>&       GetSelectHdl() const                    { return maSelectHdl; }
+    void                SetDoubleClickHdl( const Link<>& rLink ) { maDoubleClickHdl = rLink; }
+    const Link<>&       GetDoubleClickHdl() const               { return maDoubleClickHdl; }
 
     Size                CalcSubEditSize() const;    //size of area inside lstbox, i.e. no scrollbar/dropdown
     Size                CalcMinimumSize() const;    //size of lstbox area, i.e. including scrollbar/dropdown