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Fix dragging MIDI events when using a tempo-map

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This keeps mouse pointer and the dragged note in sync.
See also https://discourse.ardour.org/t/110511
This commit is contained in:
Robin Gareus 2024-08-01 18:53:52 +02:00
parent d4227b6ca4
commit 1471950e24
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 9 additions and 1 deletions
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10
gtk2_ardour/editor_drag.cc
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@ -6197,7 +6197,15 @@ NoteDrag::total_dx (GdkEvent* event) const
}
/* dx in as samples, because we can't do any better */
timecnt_t const dx = timecnt_t (pixel_to_time (_drags->current_pointer_x () - grab_x ()), timepos_t ());
samplepos_t const p1 = _editor->pixel_to_sample (_drags->current_pointer_x ());
samplepos_t const p2 = _editor->pixel_to_sample (grab_x ());
/* we need to use absolute positions here to honor the tempo-map */
timepos_t const t1 = timepos_t (timepos_t (p1).beats ());
timepos_t const t2 = timepos_t (timepos_t (p2).beats ());
/* now calculate proper `b@b` time */
timecnt_t const dx = t2.distance (t1);
/* primary note time in quarter notes */
timepos_t const n_qn = _region->region ()->source_beats_to_absolute_time (_primary->note ()->time ());