1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
ardour { ["type"] = "EditorAction", name = "Marker Split",
license = "MIT",
author = "Ardour Team",
description = [[Split regions on selected tracks at all locations markers]]
}
function icon (params) return function (ctx, w, h, fg)
local mh = h - 3.5;
local m3 = w / 3;
local m6 = w / 6;
ctx:set_source_rgba (.8, .8, .2, 1.0)
ctx:move_to (w / 2 - m6, 2)
ctx:rel_line_to (m3, 0)
ctx:rel_line_to (0, mh * 0.4)
ctx:rel_line_to (-m6, mh * 0.6)
ctx:rel_line_to (-m6, -mh * 0.6)
ctx:close_path ()
ctx:fill ()
-- TODO: better draw a left/right arrow <--|-->
-- yet this is a handy text example, so..
local txt = Cairo.PangoLayout (ctx, "ArdourMono ".. (h - 7) .. "px")
ctx:set_source_rgba (1, 0, 0, 0.7)
txt:set_text ("S")
local tw, th = txt:get_pixel_size ()
ctx:move_to (.5 * (w - tw), 1)
txt:show_in_cairo_context (ctx)
end end
function factory (params) return function ()
local loc = Session:locations () -- all marker locations
-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:Selection
local sel = Editor:get_selection ()
-- prepare undo operation
-- see http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Session
Session:begin_reversible_command ("Auto Region Split")
local add_undo = false -- keep track if something has changed
-- Track/Bus Selection -- iterate over all Editor-GUI selected tracks
-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:TrackSelection
for r in sel.tracks:routelist ():iter () do
-- each of the items 'r' is-a
-- http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Route
local track = r:to_track () -- see if it's a track
if track:isnil () then
-- if not, skip it
goto continue
end
-- get track's playlist
-- http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Playlist
local playlist = track:playlist ()
-- clear existing changes, prepare "diff" of state for undo
playlist:to_stateful ():clear_changes ()
-- iterate over all location markers
for l in loc:list ():iter () do
if l:is_mark() then
-- get all regions on the given track's playlist (may be stacked)
for reg in playlist:regions_at (l:start ()):iter () do
playlist:split_region (reg, ARDOUR.MusicFrame (l:start(), 0))
-- the above operation will invalidate the playlist's region list:
-- split creates 2 new regions.
--
-- Hence this script does it the way it does: the inner-most loop
-- is over playlist-regions.
end
end
end
-- collect undo data
if not Session:add_stateful_diff_command (playlist:to_statefuldestructible ()):empty () then
-- is something has changed, we need to save it at the end.
add_undo = true
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
|
