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ardour {
["type"] = "EditorAction",
name = "Insert Gaps",
license = "MIT",
author = "Ardour Team",
description = [[Insert gaps between all regions on selected tracks]]
}
function action_params ()
return
{
["gap"] = { title = "Gap size (in sec)", default = "2" },
}
end
function factory () return function ()
-- get configuration
local p = params or {}
local gap = p["gap"] or 2
if gap <= 0 then gap = 2 end
local sel = Editor:get_selection () -- get current selection
local add_undo = false -- keep track of changes
Session:begin_reversible_command ("Insert Gaps")
-- iterate over all selected tracks
for route in sel.tracks:routelist ():iter () do
local track = route:to_track ()
if track:isnil () then goto continue end
-- get track's playlist
local playlist = track:playlist ()
local offset = 0
-- iterate over all regions in the playlist
for region in playlist:region_list():iter() do
-- preare for undo operation
region:to_stateful ():clear_changes ()
-- move region
region:set_position (region:position() + offset, 0)
offset = offset + Session:nominal_sample_rate () * gap
-- create a diff of the performed work, add it to the session's undo stack
-- and check if it is not empty
if not Session:add_stateful_diff_command (region:to_statefuldestructible ()):empty () then
add_undo = true
end
end
::continue::
end
-- all done, commit the combined Undo Operation
if add_undo then
-- the 'nil' Command here mean to use the collected diffs added above
Session:commit_reversible_command (nil)
else
Session:abort_reversible_command ()
end
end end
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