ardour/scripts/addscopes.lua

75 lines
2.0 KiB
Lua

ardour {
["type"] = "EditorAction",
name = "Add Scopes",
license = "MIT",
author = "Ardour Team",
description = [[Add 'Inline Scope' Lua Processor to all Tracks]]
}
function action_params ()
return
{
["unique"] = { title = "Only add Scope if non is present already (yes/no)", default = "yes"},
["position"] = { title = "Insert Position from top (0,..)", default = "0"},
}
end
function factory (params)
return function ()
-- get configuration
local p = params or {}
local uniq = p["unique"] or "yes"
local pos = p["position"] or 0
-- loop over all tracks
for t in Session:get_tracks():iter() do
local insert = true;
-- check if a scope is already present
if uniq ~= "no" then
local proc;
local i = 0;
repeat
-- get Nth Ardour::Processor
proc = t:nth_plugin (i)
-- check if it's a scope
if (not proc:isnil() and proc:display_name () == "a-Inline Scope") then
insert = false;
end
i = i + 1
until proc:isnil() or insert == false
end
-- create a new processor and insert it
if insert then
local a = ARDOUR.LuaAPI.new_luaproc(Session, "a-Inline Scope");
if (not a:isnil()) then
t:add_processor_by_index(a, pos, nil, true)
ARDOUR.LuaAPI.set_processor_param (a, 0, 5) -- timescale 5sec
-- ARDOUR.LuaAPI.set_processor_param (a, 1, 1) -- logscale on
-- ARDOUR.LuaAPI.set_processor_param (a, 2, 3) -- "Max" height
a = nil -- explicitly drop shared-ptr reference
end
end
end
end
end
function icon (params) return function (ctx, width, height)
local wh = math.min (width, height) * .5
local x0 = math.ceil (wh * .4)
local x1 = math.floor (wh * 1.6)
ctx:rectangle (wh * .4, wh * .4, wh * 1.2, wh * 1.2)
ctx:set_source_rgba (.7, .7, .7, 1)
ctx:fill ()
ctx:set_line_width (1)
ctx:set_source_rgba (.0, .0, .0, 1)
ctx:move_to (x0, wh)
for x = x0, x1 do
ctx:line_to (x, wh - math.sin (2 * math.pi * (x-x0) / (x1-x0)) * wh * .5)
end
ctx:stroke ()
end end