scripts/hook_test.lua

   1 ardour {
   2         ["type"]    = "EditorHook",
   3         name        = "Callback Example",
   4         description = "Rewind On Solo Change, Write a file when regions are moved",
   5 }
   6
   7 function signals ()
   8         s = LuaSignal.Set()
   9         --s:add ({[LuaSignal.SoloActive] = true, [LuaSignal.RegionPropertyChanged] = true})
  10         s:add (
  11                 {
  12                         [LuaSignal.SoloActive] = true,
  13                         [LuaSignal.RegionPropertyChanged] = true
  14                 }
  15         )
  16         --for k,v in pairs (s:table()) do print (k, v) end
  17         return s
  18 end
  19
  20 function factory (params)
  21         return function (signal, ref, ...)
  22                 print (signal, ref, ...)
  23
  24                 if (signal == LuaSignal.SoloActive) then
  25                         Session:goto_start()
  26                 end
  27
  28                 if (signal == LuaSignal.RegionPropertyChanged) then
  29                         obj,pch = ...
  30                         file = io.open ("/tmp/test" ,"a")
  31                         io.output (file)
  32                         io.write (string.format ("Region: '%s' pos-changed: %s, length-changed: %s\n",
  33                                 obj:name (),
  34                                 tostring (pch:containsFramePos (ARDOUR.Properties.Start)),
  35                                 tostring (pch:containsFramePos (ARDOUR.Properties.Length))
  36                                 ))
  37                         io.close (file)
  38                 end
  39         end
  40 end