LMMS/lmms

Import of project from old version with solo'ed track- automation tracks don't unmute

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#6,327 opened on 2022年3月9日

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buggood first issue

説明

Bug Summary

When opening a project made in an older version of LMMS, wherein an instrument track has been solo'ed before saving, 1.3 alpha upon un-soloing the soloed tracks, automation tracks do not unmute. (Related, PR 5547, where the feature was added that enabled this behaviour.) ie, Soloing instrument track and save in 1.2, then re-opening in 1.3 alpha and un-soloing, keeps automation tracks muted.

Steps to reproduce

  1. Create project in 1.2, make sure instrument track and automation track present in project.
  2. Solo an instrument track and save the project file.
  3. (Reopening the project file in 1.2 and un-soloing the instrument, the automation track is unmuted and becomes active.)
  4. Opening the project file in 1.3 alpha, however, keeps automation tracks muted.

Expected behavior

Automation tracks should return to original state of unmuted upon un-solo'ing.

Actual behavior

Automation tracks remain muted.

Presumably this can be solved with version-checking of a project file, and the way unmuting a non-solo track works when a specific track is solo'ed, or how automation tracks can be re-muted after soloing an instrument track, but upon un-solo'ing they return to their original state.

Screenshot

image image image image

File: SoloTrack.zip

Affected LMMS versions

LMMS 1.3 alpha (by nature of bug)

コントリビューターガイド

技術スタック
cpp
領域
backend
Issue 種別
bug
難度新しい貢献者にとっての実装難度です。1 は非常に小さな変更、5 は専門的な作業です。
3
推定時間経験ある貢献者が調査、実装、テスト、pull request 準備にかけるおおよその時間範囲です。
1-3 hours
活動状況Issue が今どれだけ取り組みやすいかを示します。新しい、活発、古い、ブロック中、またはメンテナー入力待ちなどです。
needs maintainer response
明確さ期待される変更、受け入れ条件、次の手順がどれだけ明確かを示します。
clear
前提条件
basic C++understanding of LMMS track system
初心者向け度初回貢献者にどれだけ取り組みやすいかを 1-100 で推定したスコアです。
40
調査方針
Investigate PR #5547 which introduced the solo feature. Look at project file version checking code in LMMS to understand how solo state is saved/loaded. Examine the track mute/unmute logic, particularly how automation tracks interact with soloed instrument tracks. The bug occurs when opening projects saved in version 1.2 with a soloed track; after un soloing, automation tracks remain muted. Check if there is a missing reset or restoration of automation track mute state during project load.