This also adds interaction with sections in the
Arrangement Ruler.
Note that selecting a range switches to the Range tool.
This is enforced because time-range selection is only meaningful
with tools that perform edit operations on the whole timeline.
These were being drawn in a way that failed to really convey relative
tempos very well. This is now better, though perhaps there are other
improvements possible
Previously CD-markers and Arrangement-markers were shown
in the default Maker ruler when CD or Arrangement ruler
were hidden.
This also fixes a bug that could result in marker-labels
being cut short. Editor::update_marker_labels calculates
overlap with other markes in the same group; but re-parenting
did not update the sorted_marker_lists[group] index.
Draw regular tempo/meter markers for BBT markers, and move them when BBT marker is dragged
This will (does) allow regular editing workflow for the tempo/meter at at BBT marker
the API now provides the option to call ::get_grid() with an iterator which may
be re-used on subsequent calls. This avoids unbounded O(N) "walks" from the
marker preceding the start point of the grid to the start point.
This commit also includes "fast-path" code for the common case of a single
tempo and single meter
Make click & drag in the left-hand half of a region with the Timestretch
tool stretch the region on its left, leaving the end position of the new
time-stretched region in the same place as the end of the original.
Deleting _track_canvas_viewport automatically destroys
any child Items. The LocationMarker's group was already destroyed
when ~ArdourMarker() runs and calls `delete group`.
So first delete the marker, then the canvas
* correctly handle clicks on the immediate right or left of a beat line
* prefer Mid-Twist and End-Stretch terminology over Twist and Linear
* static-tempo vs ramped-tempo is orthogonal to mid- and end- drags (TODO)
We now use the same actions in all modes, and the logic is:
1. is there a selected mixer strip and are we in it: if so, delete selected
processors
2. are we in draw or internal mode? if so ..
2a. if there are selected control points, delete them
2b. if not, attempt to delete MIDI notes
2c. done
3. continue with delete operation as before
