65 lines
2.1 KiB
Lua
65 lines
2.1 KiB
Lua
ardour { ["type"] = "EditorAction", name = "Collapse Playlists",
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license = "MIT",
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author = "Ardour Team",
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description = [[Add regions of all playlists to the current playlist of each selected track]]
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}
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function factory (params) return function ()
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-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:Selection
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local sel = Editor:get_selection ()
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-- prepare undo operation
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-- see http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Session
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Session:begin_reversible_command ("Collapse Playlists")
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local add_undo = false -- keep track if something has changed
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-- Track/Bus Selection -- iterate over all Editor-GUI selected tracks
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-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:TrackSelection
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for route in sel.tracks:routelist():iter() do
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-- each of the items 'route' is-a
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-- http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Route
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local track = route:to_track() -- see if it's a track
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if track:isnil() then
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-- if not, skip it
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goto continue
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end
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-- get track's current playlist
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-- http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Playlist
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local playlist = track:playlist()
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-- clear existing changes, prepare "diff" of state for undo
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playlist:to_stateful():clear_changes()
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-- get and iterate over all playlists for the current track
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for p in Session:playlists():playlists_for_track (track):iter() do
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-- skip current active playlist
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if (p ~= playlist) then
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-- for each region of the playlist
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for r in p:region_list():iter() do
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-- add it to the current playlist
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playlist:add_region (r, r:position(), 1, false, 0, 0, false)
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end
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end
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end
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-- collect undo data
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if not Session:add_stateful_diff_command (playlist:to_statefuldestructible()):empty() then
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-- is something has changed, we need to save it at the end.
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add_undo = true
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end
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::continue::
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end
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-- all done, commit the combined Undo Operation
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if add_undo then
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-- the 'nil' Command here mean to use the collected diffs added above
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Session:commit_reversible_command (nil)
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else
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Session:abort_reversible_command ()
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end
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end end
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