Piano Roll to Step Sequencer Bug
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- Dominant language
- C++
- Stars
- 10.4k
- Forks
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- Avg merge
- 2d 13h
- Merged PRs (30d)
- 7
Description
Steps to reproduce:
1. Create four notes on the first four tombstones in a BB pattern
2. Double click the fifth tombstone to open in piano roll
3. Ctrl-drag to select the first four notes
4. Shift drag them one 1/2 note to the left (tombstones 9-12)
5. Close piano roll. Tombstones 9-12 should be lit.
6. Add a note on tombstone 6. Tombstones 9-12 should go dark.
This can be reproduced in many more situations than this one, it's just a specific example tat's easy to reproduce.
Related: https://github.com/LMMS/lmms/pull/5902#issuecomment-772740812
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No source file or test is named; begin by reproducing the piano-roll and step-sequencer sequence described in the issue. Trace the update from moving notes in the piano roll through closing it and adding a new step, then verify that the affected tombstones consistently light and go dark as expected.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- audio-video-rtc, desktop-dev
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100