Bug 2181 – Time-shifting multiple sync-locked tracks can corrupt the selection and clock icons

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Audacity 3.0.3 development began 19th April 2021

Audacity Bugzilla

Bug 2181 - Time-shifting multiple sync-locked tracks can corrupt the selection and clock icons


Summary:	Time-shifting multiple sync-locked tracks can corrupt the selection and clock...

Status:	CLOSED NOT-A-BUG

Product:	Audacity
Classification:	Unclassified
Component:	Application Core
Version:	2.3.3
Hardware:	Per OS All

Importance:	P3 RepeatableAll
Assigned To:	Default Assignee for New Bugs

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2019-07-31 05:22 UTC by Peter Sampson
Modified:	2019-08-12 08:47 UTC (History)
CC List:	7 users (show)

See Also:	2176
Steps To Reproduce:	1) get multiple audio tracks 2) turn on sync-lock 2) select just one of them 3) use the time shift tool over a non-selected track 4) Observe: the clock icons and the Timeline "selection" remain where they previously. Also occurs if at Step 2 a partial selection in one track is made.
Release Note:	GROUP:Imports and Exports *Time-shifting multiple sync-locked tracks can corrupt the selection and clock icons - but only when the cursor is over a non-selected (clock-iconed) track.
First Git SHA:
Group:	---
Workaround:	Make a fresh selection - or just set the cursor somewhere in the waveforms
Closed:	2019-08-12 00:00:00

Attachments
Stranded clocks and selection after time-shifting tracks (101.52 KB, image/png) 2019-07-31 05:22 UTC, Peter Sampson	Details
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Description Peter Sampson 2019-07-31 05:22:22 UTC

Created attachment 844 [details]
Stranded clocks and selection after time-shifting tracks

Time-shifting multiple sync-locked tracks can corrupt the selection and clock icons - but only when the cursor is over a non-selected (clock-iconed) track.

It works properly if you drag a selected track (can be one of multiple selected tracks.

This was originally reported as a residual of Bug #2176

Comment 1 Peter Sampson 2019-08-12 08:47:09 UTC

Steve and David discussed this on email on the Quality list - we decided this was "designed behavior"  (I still think it looks most odd) - marked as CLOSED NOTABUG

Steve wrote:
>The steps to reproduce:
>1) get multiple audio tracks
>2) turn on sync-lock
>2) select just one of them
>3) use the time shift tool over a non-selected track
>4) Observe:  the clock icons and the Timeline "selection" remain where they
> previously.
>
>Isn't that the correct behaviour?
>That appears to be the same in Audacity 2.2.1.
>
>Where does "corruption" come into this?


David agreed:
>Yes, I think it is. The selected time range is only shifted if the time shift
>tool is within some selected audio. This applies whether or not sync lock is
>enabled.
>In the manual, when discussing time shifting clips:
>"An individual clip always shifts when dragged, though if the clip is 
>partially selected, dragging to left or right from outside the selection 
>region moves the clip without moving the region itself. "