[JW Lua] Improved FindEntryStartPosition function

[Jan Angermüller]

Jari,

FCNoteEntryCell:FindEntryStartPosition sometimes returns unfavorable 
results.

It prioritizes main notes over grace notes, but it doesn't prioritize:
1.) visible notes over invisible notes (so currently an invisible rest 
on layer 1 is prefered over a visible note on layer 2)
2.) notes that are on the exact measure position over whole measure 
rests that appear in the center of the measure
(so at position 0 a rest on layer 1 that appears in the center of the 
measure is prioritized over a note that appears on position 0 on layer 2)
3.) visible notes over notes that are hidden through a staff style

The latter may be a bit difficult to implement, but the first two 
options should be rather straight forward.
This would be a great improvement of the function.

Below is a workaround solution for 1) + 2).

Best,
Jan
https://elbsound.studio

function NewFindEntryStartPosition(entry,measurepos,notecell)
     -- look for better matching entries in other layers
     if (entry~=nil) then
         if entry.Visible
             and entry:IsRest()
             and (entry.Duration==4096) then
             local meas=finale.FCMeasure()
             meas:Load(entry.Measure)
             if meas:GetDuration()<=4096 then
                 for e in each(notecell) do
                     if (e.MeasurePos==measurepos)
                         and (not e:IsRest() or (e.Duration~=4096)) then
                         entry=e
                         break
                     end
                 end
             end
         elseif (entry.Visible==false) then
             for e in each(notecell) do
                 if (e.MeasurePos==measurepos)
                     and e.Visible then
                     entry=e
                     break
                 end
             end
         end
     end
     return entry
end

local 
noteentrycell=finale.FCNoteEntryCell(finenv.Region().EndMeasure,finenv.Region().StartStaff)
noteentrycell:Load()
local 
entry=NewFindEntryStartPosition(noteentrycell:FindEntryStartPosition(0,-1),0,noteentrycell)
print(entry.LayerNumber)
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