- There are two new commands: Scrub Backwards and Scrub Forwards.
- These commands appear on the Transport sub menu of the Extra menu.
- The commands have default shortcuts U and I, and are in the standard default set.
- After pressing one of the two keys, playback continues until the key is released. (Note that this means that the command on the Extra > Transport menu can't actually be used for scrubbing as it executes a KeyDown immediately followed by a KeyUp, but the menu items are needed so that the current keystrokes can be seen and changed.)
- Playback starts from the cursor position, or the start of a time selection if there is one.
- The speed of playback is determined by the zoom level. If the zoom level is normal, then the playback speed is one quarter of the normal playback speed. Zooming in (Ctrl + 1), halves the playback speed, and zooming out (Ctrl + 3) doubles the playback speed. There are minimum and maximum playback speeds of one sixteenth, and four respectively.
- You can scrub to the end of the audio, even if there is an initial selection. In other words, scrubbing forwards does not automatically stop at the end of the selection.
- Normally, when one of the keys is released, the position of the cursor is set to the time when the key was released.
- If during the time one of the keys is pressed the left bracket and or right bracket keys are pressed to set the start and/or end of the selection, then when the scrubbing key is released, the change to the selection made by pressing the bracket keys is preserved - the position of the cursor is not set to the time when the key was released.
This implementation is affected by two existing bugs:
1. Bug 1954 - Clicks may occur starting/pausing play-at-speed or Scrub. (See comment 19 and attached image).
2. Bug 1956 - Windows: MME and WDS playback cursor is buffer length ahead of actual audio playing. This means that on Windows, WASAPI is preferable if scrubbing is being used for the accurate positioning of the cursor.
... in cases of "TranslatableString" that are not really translated.
This makes it easier to scan the code for such unusual constructions of
TranslatableString, distinct from mere mentions of the TranslatableString type.
... and deduce whether to exclude from macros inside NewIdentifier, simplifying
argument lists further
Also fix the localization of "..." added to names by PluginMenus.cpp
... include it in the msgid intead, to get appropriate translations. For
instance some locales use the same character but prefer to insert a space
before it.
Bug began at 0750f62e88ee96cd4804c19ba54e3ac1d2ff1b73
Track::SetSelected is virtual, after all, but then LabelTrack informs
LabelTrackView of selection changes by events, so that LabelTrack remains
independent of LabelTrackView.
This might make much of the rest of the guily commit unnecessary (the resetting
of selected index to -1 only lazily), but it is harmless.
Steps to reproduce:
1. create a new project in Audacity
2. add several tracks.
3. turn on Sync-Lock (Tracks, Sync-Lock Tracks checked)
4. Click on the Time Shift Tool.
5. Attempt to move tracks to the right (for example), clicking in the bottom track
6. It crashes.
In the function: void TimeShiftHandle::CreateListOfCapturedClips(), the problem was the first occurrence of the line:
auto &trackClip = state.capturedClipArray[i];
The subsequent call to AddClipsToCaptured(), can reallocate the array and so invalidate the reference.
Fix: Don't use a reference. (TrackClip is not a large object.)
