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ardour {
["type"] = "EditorAction",
name = "Generic MIDI Track",
description = [[Example]]
}
-- If a route_setup function is present in an Editor Action Script
-- the script is also listed in the "add track/bus" dialog as meta-template
--
-- The function is expected to return a Lua table. The table may be empty.
function route_setup ()
return
{
-- keys control which AddRouteDialog controls are made sensitive.
-- The following keys accept a default value to pre-seed the dialog.
['how_many'] = 1,
['name'] = 'MIDI',
['channels'] = nil,
['track_mode'] = nil,
['strict_io'] = true,
-- these keys just need to be set (to something other than nil)
-- in order to set the control sensitives
['insert_at'] = ARDOUR.PresentationInfo.max_order,
['group'] = false, -- return value will be a RouteGroup*
['instrument'] = true, -- return value will be a PluginInfoPtr
}
end
-- The Script can be used as EditorAction in which case it can
-- optionally provide instantiation parmaters
function action_params ()
return
{
['how_many'] = { title = "How Many tracks to add", default = "1" },
["name"] = { title = "Track Name Prefix", default = "MIDI" },
["instrument"] = { title = "Add Instrument", default = "true" },
}
end
function factory (params) return function ()
-- When called from the AddRouteDialog, 'params' will be a table with
-- keys as described in route_setup() above.
local p = params or route_setup ()
local name = p["name"] or 'Audio'
local how_many = p["how_many"] or 1
local insert_at = p["insert_at"] or ARDOUR.PresentationInfo.max_order;
local group = p["group"] or nil
local strict_io = p["strict_io"] or false
local instrument = p["instrument"] or nil
-- used in 'action-script mode'
if instrument == "true" then
instrument = ARDOUR.LuaAPI.new_plugin_info ("http://gareus.org/oss/lv2/gmsynth", ARDOUR.PluginType.LV2) -- general midi synth
if instrument:isnil () then
instrument = ARDOUR.LuaAPI.new_plugin_info ("https://community.ardour.org/node/7596", ARDOUR.PluginType.LV2) -- reasonable synth
end
if instrument:isnil () then
LuaDialog.Message ("MIDI track add", "Cannot find instrument plugin",
LuaDialog.MessageType.Info, LuaDialog.ButtonType.Close):run ()
return
end
end
-- add no instrument
if type (instrument) ~= "userdata" then
instrument = ARDOUR.PluginInfo ()
end
Session:new_midi_track(
ARDOUR.ChanCount(ARDOUR.DataType ("midi"), 1),
ARDOUR.ChanCount(ARDOUR.DataType ("audio"), 2),
strict_io,
instrument, nil,
group, how_many, name, insert_at, ARDOUR.TrackMode.Normal)
end end
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