ardour/scripts/s_selection.lua

ardour { ["type"] = "Snippet", name = "Editor Selection" }

function factory () return function ()
	-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:Selection
	-- the Ardour Selection can include multiple items
	-- (regions, tracks, ranges, markers, automation, midi-notes etc)
	local sel = Editor:get_selection ()

	--
	-- At the point of writing the following data items are available
	--
	
	-- Range selection, total span of all ranges (0, 0 if no time range is selected)
	if sel.time:start () < sel.time:end_frame () then
		print ("Total Range:", sel.time:start (), sel.time:end_frame ())
	end

	-- Range selection, individual ranges.
	for ar in sel.time:iter () do
		-- each of the items is a
		-- http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:AudioRange
		print ("Range:", ar.id, ar.start, ar._end)
	end

	-- Track/Bus Selection
	-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:TrackSelection
	for r in sel.tracks:routelist ():iter () do
		-- each of the items is a
		-- http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Route
		print ("Route:", r:name ())
	end

	-- Track/Bus Selection
	-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:TrackViewList
	-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:TimeAxisViewList
	for tav in sel.tracks:timeaxisviewlist ():iter () do
		local rtav = tav:to_routetimeaxisview ()
		if rtav then
			print ("RTAV:", rtav:name())
			local atav = rtav:automation_tav (Evoral.Parameter(ARDOUR.AutomationType.MuteAutomation, 0, 0))
			if atav then
				-- XXX doesn't work... we need to access the   automation_child_menu_item()..
				atav:set_marked_for_display (true)
				rtav:request_redraw ()
			end
			-- may assert if the menu hasn't been used
			--rtav:toggle_automation_track (Evoral.Parameter(ARDOUR.AutomationType.MuteAutomation, 0, 0))
		end
	end

	-- Region selection
	-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:RegionSelection
	for r in sel.regions:regionlist ():iter () do
		-- each of the items is a
		-- http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Region
		print ("Region:", r:name ())
	end

	-- Markers
	-- http://manual.ardour.org/lua-scripting/class_reference/#ArdourUI:MarkerSelection
	-- Note: Marker selection is not cleared and currently (Ardour-4.7) points
	--       to the most recently selected marker.
	for m in sel.markers:iter () do
		-- each of the items is a
		-- http://manual.ardour.org/lua-scripting/class_reference/#ARDOURUI::ArdourMarker
		print ("Marker:", m:name (), m:position(), m:_type())
	end

	----------------------------------------------------------
	-- The total time extents of all selected regions and ranges
	local ok, ext = Editor:get_selection_extents (0, 0)
	if ok then
		print ("Selection Extents:", ext[1], ext[2])
	else
		print ("No region or range is selected")
	end

end end