tdf#129625 Calc Navigator: Gray out content types with no content

Change-Id: I298894bbb338b97fe6891e33b23f16302acaec37
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87714
Tested-by: Jenkins
Reviewed-by: Noel Grandin <[email protected]>
diff --git a/sc/source/ui/navipi/content.cxx b/sc/source/ui/navipi/content.cxx
index 1d33a9e..a64e772 100644
--- a/sc/source/ui/navipi/content.cxx
+++ b/sc/source/ui/navipi/content.cxx
@@ -1648,6 +1648,18 @@
            ScContentId nEntry = static_cast<ScContentId>(i);
            if( pRootNodes[ nEntry ] )
            {
                // gray or ungray
                if( GetChildCount( pRootNodes[ nEntry ] ) == 0 )
                {
                    pRootNodes[ nEntry ]->SetFlags( pRootNodes[ nEntry ]->GetFlags() | SvTLEntryFlags::SEMITRANSPARENT );
                    pRootNodes[ nEntry ]->SetTextColor( COL_GRAY );
                }
                else
                {
                   pRootNodes[ nEntry ]->SetFlags( pRootNodes[ nEntry ]->GetFlags() & ~SvTLEntryFlags::SEMITRANSPARENT );
                   pRootNodes[ nEntry ]->SetTextColor( GetTextColor() );
                }

                // expand
                bool bExp = pSettings->IsExpanded( nEntry );
                if( bExp != IsExpanded( pRootNodes[ nEntry ] ) )