Changed the criterion for deciding when two clips are immediately next to each other, and made it into a function: WaveClip::SharesBoundaryWithNextClip.
That is, don't assume uniformity of pixels per second, but supply the correct
first argument.
This will matter when there is a magnifier. But that will not be in the next
version.
This means you can now select just a time, and get all tracks selected, or some tracks, and get all time selected.
One side effect of this is that if you select a label (only) and apply 'cut' you now just cut the label, rather than cutting all tracks. If you select a label and apply echo, you now get an error message, rather than applying echo to all tracks.
... also gathered various formatting into some routines. Should we regularize
the messages further? That is, consistently put "dB" before or after "RMS"
Also added more i18n-hint comments
Now if there is a time selection and no tracks selected, then just select all the tracks, preserving the time selection.
This helps in the case a user has made a time selection, e.g. with selection toolbar, and then clicked on track panel, losing the selection of tracks but preserving the time selection.
I also shortened some repeated cut-and-pasted code.
Fix bug in AudacityProject::AdjustForFindingStartTimes.
Bug: When there is 0 or 1 clips, q - 2 is before the begin() of the vector, and caused crash.
Fix: split the test into two tests.
When When two clips are immediately next to each other, the GetEndTime() of the first clip and the GetStartTime() of the second clip may not be exactly equal due to rounding errors. The existing code assumed they were equal, and this lead to the wrong clip boundaries or clips being found.
There are a number of ways of fixing this which could be explored. The current solution involves changing only the code for the keyboard interaction with clips.
The fix:
1. The test used for two clips being immediately next to each other is that GetEndSample() on the first clip is equal to to GetStartSample() on the second clip.
2. When searching for the start/end times of clips, the cases where GetEndTime() and GetStartTime() are not equal are taken into account. This is done in the two functions AudacityProject::AdjustForFindingStartTimes and AudacityProject::AdjustForFindingEndTimes.
... Formerly this was done correctly only for cut and delete from WaveTrack,
paste into WaveTrack, and sync-lock adjustment of WaveTrack (either lengthening
or shortening).
Now also properly done for TimeTrack cut and paste, and also for:
Split cut
Split delete
Trim
... To be very sure we can avoid roundoff errors from adding mOffset and
subtracting it again; so that evaluation exactly at a control point time gives
the exact value of that point.
