Although AdjustSync would not alter anything in CourseMode, it would
sometimes announce it had. It would be better to simply remove the
Autosync line from the options in CourseMode, but I don't know how to
do that.
In edit mode, though, AdjustSync should only save to memory, giving the
user a chance to save later. This change adds a SongChanged message
to the MessageManager. Making the ScreenEdit class listen to this
message allows the AdjustSync class to mark a song as dirty rather than
saving it to disk when in edit mode.
R=steve chekoway
Regression to figure out a line through the user's step errors to minimize
that error. It then uses the slope of that line to fix the tempo and the
intercept to fix the offset. Stops are adjusted as if they were originally
calculated as a number of beats, ie the slope is also used to change
the stops.
Also fixed is a bug where the user doesn't get a chance to keep or
reject the sync changes when ESCing (ZZing) from a song.
R=glenn
puts it back where it was. Use the same logic as GetSyncChangeTextGlobal
and GetSyncChangeTextSong; if the changes are so small that we wouldn't
even display them, don't count them as changed. (fixes ScreenSaveSync
coming up with an empty list)
Steve Checkoway