When a tempo map change originates from a drag, we know the required redraws have
already been done. Use a new bool member, ignore_map_change, to tell the Editor
to ignore the map change signal. For all other map changes, do the full reset.
We now simply move markers during drags, and do not seek to create/delete markers.
When the map is changed, we rebuild the markers from scratch. This might need optimization to avoid doing
when the editor itself changed the map.
This used to be a distinct kind of drag, but ended up being refactored into
something that happens during a regular drag. Has not been used in quite some time.
The design ignored the ratio computed by the drag interaction, and relied on getting the stretch
ratio from the dialog. This truncated the actual ratio, leading to (relatively) small errors
in the length of the generated region.
Now, if the ratio provided by the drag is not (1/1) (i.e. a single click while in timefx mode)
then the percentage stretch spinner is marked insensitive and the stretch ratio is taken from
the given ratio. For single clicks, the user can still adjust the percentage as they wish
* in the case where there are no existing automation points, then
initiating an automation range drag (select range, switch to Draw)
should initialize the line at the current knob position
this prevents the case where have enabled snap, and you add a note that
appears to be on a bar line. but actually it is {some Grid value} off,
it just looks right because of pixel rounding.
This fixes the issue where you click to create a note, but move the mouse
just a little, resulting in a note of invisibly small length
Do the calculation in ::motion so it displays the final
size while you are dragging. "what you see is what you will get"
The ::start_drag() implementation now defers add/extend selection logic to
MidiRegionView::note_selected(), and drops the original limitation that we did
not do extend-selection on button press, only button release.
This commit leaves two issues outstanding:
1. unclear/ugly semantics for drag operations that reset the GUI thread's tempo map to the writable copy
2. undo/redo for the tempo map
These will be addressed in future commits
This was broken during development of ripple-all.
First explicit rdiff_and_add_command() was used, but
when that was reverted later, the original stateful_diff
was not restored.
989408626d1ccf272d58
This addresses an issue with missing guard points at the
beginning of a range drag when the range is not snapped to
a musical grid.
Note that the code below "same thing for the end" does not use
.beats() either.
Major changes: do not delete and recreate markers and curves for every tempo map
change, attach tempo curves directly to their (preceding) tempo marker, notable
cleanup of TempoCurve class to remove unnecessary members.
More tweaks expected since algorithm for matching markers and tempo map
points is not correct yet.
