scripts/hook_test.lua

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