REQ: Select only last Item of all selected Items.

[vanhaze]

Dear Reaper Scripters !

Is this maybe possible to script:

Situation:
- Having some Items selected. (can be on same track, can be on different tracks).

When executing the Script, only the last Item (so the Item on the far right of all the selected Items) will be selected.

Many thanks in advance !
Warm Regards.

[spk77]

Try this:

-- Select last item of selected items by spk77 (20 August 2018)
-- https://forum.cockos.com/showthread.php?t=210311

function main()
  local item_count = reaper.CountSelectedMediaItems(0)
  if item_count == 0 then
    return
  end
  local max_item_end = -1
  local last_item
  for i = 1, item_count do
    local item = reaper.GetSelectedMediaItem(0, i-1)
    if item ~= nil then
      local item_pos = reaper.GetMediaItemInfo_Value(item, "D_POSITION")
      local item_len = reaper.GetMediaItemInfo_Value(item, "D_LENGTH")
      local item_end = item_pos + item_len
      if item_end > max_item_end then
        max_item_end = item_end
        last_item = item
      end
    end
  end
  reaper.Main_OnCommand(40289, 0) -- Unselect items
  if last_item ~= nil then
    reaper.SetMediaItemSelected(last_item, true)
  end
  reaper.UpdateArrange()
  reaper.Undo_OnStateChangeEx("Select last of selected items)", -1, -1)
end

reaper.defer(main)

[vanhaze]

My God, are you some kind of Reaper Scripting Robot ?!
Beautiful, just Beautiful, thanks so much !

[Edgemeal]

Originally Posted by spk77

Try this:

Is there something wrong by doing it this way? Just trying to learn better.

count_sel_items = reaper.CountSelectedMediaItems(0)
if count_sel_items < 2 then return end
lastitem = reaper.GetSelectedMediaItem(0, count_sel_items-1) 
reaper.Main_OnCommand(40289, 0) -- Item: Unselect all items
reaper.SetMediaItemSelected(lastitem, true) -- Select last item
reaper.UpdateArrange()

THANKS!

[spk77]

Originally Posted by vanhaze

My God, are you some kind of Reaper Scripting Robot ?!
Beautiful, just Beautiful, thanks so much !

Glad it worked

Originally Posted by Edgemeal

Is there something wrong by doing it this way? Just trying to learn better.

count_sel_items = reaper.CountSelectedMediaItems(0)
if count_sel_items < 2 then return end
lastitem = reaper.GetSelectedMediaItem(0, count_sel_items-1) 
reaper.Main_OnCommand(40289, 0) -- Item: Unselect all items
reaper.SetMediaItemSelected(lastitem, true) -- Select last item
reaper.UpdateArrange()

THANKS!

That would work if selected items are on a single track, but count_sel_items-1 isn't necessarily the last item in timeline order:


In this case, count_sel_items-1 would be the first item in timeline. (reaper.GetSelectedMediaItem doesn't return items in chronological order)

[MonkeyBars]

Hey I'm doing research for my script project and was wondering, what exactly is Undo_OnStateChangeEx() doing here? I can't find an explanation in any docs.

[MonkeyBars]

Amalgama explained to me that this command creates an additional undo point within an existing undo block

[Phfraiengngchkxzcs]

Originally Posted by spk77

Try this:

-- Select last item of selected items by spk77 (20 August 2018)
-- https://forum.cockos.com/showthread.php?t=210311

function main()
  local item_count = reaper.CountSelectedMediaItems(0)
  if item_count == 0 then
    return
  end
  local max_item_end = -1
  local last_item
  for i = 1, item_count do
    local item = reaper.GetSelectedMediaItem(0, i-1)
    if item ~= nil then
      local item_pos = reaper.GetMediaItemInfo_Value(item, "D_POSITION")
      local item_len = reaper.GetMediaItemInfo_Value(item, "D_LENGTH")
      local item_end = item_pos + item_len
      if item_end > max_item_end then
        max_item_end = item_end
        last_item = item
      end
    end
  end
  reaper.Main_OnCommand(40289, 0) -- Unselect items
  if last_item ~= nil then
    reaper.SetMediaItemSelected(last_item, true)
  end
  reaper.UpdateArrange()
  reaper.Undo_OnStateChangeEx("Select last of selected items)", -1, -1)
end

reaper.defer(main)

This is great. I am just learning the most basic elements of scripting in reaper, but i was wondering if there is a way to tweak this to select the most recently added item. Ideally, MIDI item. My hope would be to have the MIDI editor always focus to the MIDI item that was most recently recorded.