[Audacity-quality] Cursor display issues

[Bill W. <bi...@go...>]

Summary:
A) The cursor remains in a track even when a track is not selected,  
generating confusion about what may happen when a user performs an  
action at the cursor.
B) The time shift tool creates a cursor in the track in which it is  
clicked, creating a "phantom" cursor that can mimic an actual  
selection point in that track.
C) Using the arrow keys to change track focus creates a "phantom cursor"

A) Cursor remains when track is not selected
1. New Project
2. Create three mono audio tracks
3. Generate 5 sec tone in the first two
4. Generate 1 sec chirp in the third, amplitude 0 to 1
(anything else would do, just so it is visually different from the  
tones)
5. Select track 3 and copy the chirp to the clipboard
6. Delete track 3
7. With the selection tool, click in track 1
8. Press enter - the track is un-selected but the cursor remains
9. Edit > Paste
What should happen? There is a cursor in track 1, so it appears that  
paste should occur there. But track 1 is not selected, so a new track  
is created and pasted into at time zero.
Instead ...
7. With the selection tool, drag a selection in track 1
8. Press enter - the track is un-selected and the selection indication  
in the track goes away. The selection range remains in the time line.
9. Edit > Paste - as above, but this time it makes a bit more sense.

The cursor should not exist in a track that is not selected, just as a  
selection range does not exist in a track that is not selected.

B) Time shift tool creates a phantom cursor
7. With the selection tool, click in track 1
8. Press enter
9. With the time shift tool, click anywhere in track 2
- the cursor moves to track 2
10. Edit > Paste -  the paste occurs in a new track.

Also:
7. With the selection tool, click in track 1
8. With the time shift tool, click in track 2
- the cursor is extended to track 2, track 1 is selected and track 2  
has focus
9. Edit > Paste - the paste occurs at the cursor in track 1.

The time shift tool should not create a cursor in the track where it  
is clicked.

C) Using arrow keys to change track focus creates a phantom cursor
7. With the selection tool, click in track 1
8. Press enter
9. Press down-arrow
- the cursor moves to track 2
10. Edit > Paste -  the paste occurs in a new track.

7. With the selection tool, click in track 1
8. Press down-arrow
- the cursor is extended to track 2, track 1 is selected and track 2  
has focus
9. Edit > Paste - the paste occurs at the cursor in track 1.

This possibly a sub-case of A - the cursor should not exist in a track  
that is not selected.

Is this worthy of a bugzilla entry, or should we discuss this on a  
wiki page?

-- Bill