1 files changed, 122 insertions, 0 deletions
diff --git a/share/scripts/split_all_markers.lua b/share/scripts/split_all_markers.lua
new file mode 100644
index 0000000000..001c4ae432
--- /dev/null
+++ b/share/scripts/split_all_markers.lua
@@ -0,0 +1,122 @@
+ardour { ["type"] = "EditorAction", name = "Marker Split",
+	license     = "MIT",
+	author      = "Ardour Team",
+	description = [[Split regions on selected tracks at all locations markers]]
+}
+
+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.MusicSample (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
+
+
+-- render an icon for the toolbar action-button
+-- this is genrally square width == height.
+-- The background is set according to the theme (leave transparent when drawing).
+-- A foreground color is passed as parameter 'fg'
+--
+-- ctx is-a http://manual.ardour.org/lua-scripting/class_reference/#Cairo:Context
+-- 2D vector graphics http://cairographics.org/
+function icon (params) return function (ctx, width, height, fg)
+	local mh = height - 3.5;
+	local m3 = width / 3;
+	local m6 = width / 6;
+
+	ctx:set_line_width (.5)
+
+	-- compare to gtk2_ardour/marker.cc "Marker"
+	ctx:set_source_rgba (.8, .8, .2, 1.0)
+	ctx:move_to (width / 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_preserve ()
+	ctx:set_source_rgba (.0, .0, .0, 1.0)
+	ctx:stroke ()
+
+	-- draw an arrow  <--|--> on top, using the foreground color
+	ctx:set_source_rgba (ARDOUR.LuaAPI.color_to_rgba (fg))
+	ctx:set_line_width (1)
+
+	ctx:move_to (width * .5, height * .4)
+	ctx:line_to (width * .5, height * .6)
+	ctx:stroke ()
+
+	ctx:move_to (2, height * .5)
+	ctx:line_to (width - 2, height * .5)
+	ctx:stroke ()
+
+	ctx:move_to (width - 2, height * .5)
+	ctx:rel_line_to (-m6, -m6)
+	ctx:rel_line_to (0, m3)
+	ctx:close_path ()
+	ctx:fill ()
+
+	ctx:move_to (2, height * .5)
+	ctx:rel_line_to (m6, -m6)
+	ctx:rel_line_to (0, m3)
+	ctx:close_path ()
+	ctx:fill ()
+end end