LMMS / LMMS/lmms

make instrument change undoable

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#1,262 8 comments 0 reactions 0 assignees View on GitHub

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enhancement
Dominant language
C++
Stars
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Forks
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Avg merge
2d 13h
Merged PRs (30d)
7

Description

I often experiment around with how a track would sound if played with other instruments. However drag-n-dropping a new instrument or preset into a track is not undoable yet. Sometimes it's especially annoying when you place an instrument by accident into the track beneath or above the track you initially intended to drop the instrument on. In this case i often dont remember what instrument was in the other track to fix my mistake.
Being able to undo instrument changes would be very convenient.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the drag-and-drop handling for instruments and presets and the existing undo mechanism. Trace how an instrument change is applied to a track, then verify that undo restores the previous instrument in the affected track, including an accidental drop onto a neighboring track.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
desktop
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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