store vcl::Window in ListControl to allow adding VclContainer

Change-Id: Ib7f145ae1137ec29749e0a60a21e84dd747ac5c1
Reviewed-on: https://gerrit.libreoffice.org/43253Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>

include/vcl/listctrl.hxx

@@ -31,7 +31,7 @@
 class VCL_DLLPUBLIC ListControl : public Control
 {
 private:
-    std::vector<VclPtr<Control>> maEntries;
+    std::vector<VclPtr<vcl::Window>> maEntries;
     bool mbHasScrollBar;
     VclPtr<ScrollBar> mpScrollBar;
 
@@ -43,7 +43,7 @@ public:
     virtual ~ListControl() override;
     virtual void dispose() override;
 
-    void addEntry(VclPtr<Control> xEntry, sal_uInt32 nPos = std::numeric_limits<sal_uInt16>::max());
+    void addEntry(VclPtr<vcl::Window> xEntry, sal_uInt32 nPos = std::numeric_limits<sal_uInt16>::max());
     void deleteEntry(sal_uInt32 nPos);
 
     virtual Size GetOptimalSize() const override;

vcl/source/control/listctrl.cxx

@@ -118,7 +118,7 @@ IMPL_LINK_NOARG( ListControl, ScrollHdl, ScrollBar*, void )
     DoScroll(mpScrollBar->GetDelta());
 }
 
-void ListControl::addEntry(VclPtr<Control> xEntry, sal_uInt32 nPos)
+void ListControl::addEntry(VclPtr<Window> xEntry, sal_uInt32 nPos)
 {
     xEntry->Show();
     if (nPos < maEntries.size())