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Drag/Drop work-around midi note bleeding

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During DnD, the region uses the 'old/current'                                                                                                                                                                                                
midi_stream_view()'s range and its position/height calculation.

Ideally DnD would decouple the midi_stream_view() for the
region(s) being dragged and set it to the target's range
(or in case of the drop-zone, FullRange).
but I don't see how this can be done without major rework.

For now, just prevent visual bleeding of events in case
the target-track is smaller.
This commit is contained in:
Robin Gareus 2015-03-28 18:00:31 +01:00 committed by Paul Davis
parent 7f187d4169
commit 2a7cf7455a
1 changed files with 22 additions and 0 deletions
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22
gtk2_ardour/midi_region_view.cc
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@ -1498,6 +1498,21 @@ MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
const double y0 = 1. + floor (midi_stream_view()->note_to_y(note->note()));
const double y1 = y0 + std::max(1., floor(midi_stream_view()->note_height()) - 1.);
if (y0 < 0 || y1 >= _height) {
/* During DnD, the region uses the 'old/current'
* midi_stream_view()'s range and its position/height calculation.
*
* Ideally DnD would decouple the midi_stream_view() for the
* region(s) being dragged and set it to the target's range
* (or in case of the drop-zone, FullRange).
* but I don't see how this can be done without major rework.
*
* For now, just prevent visual bleeding of events in case
* the target-track is smaller.
*/
event->hide();
continue;
}
cnote->set_y0 (y0);
cnote->set_y1 (y1);
@ -1754,6 +1769,13 @@ MidiRegionView::update_hit (Hit* ev, bool update_ghost_regions)
const double diamond_size = std::max(1., floor(midi_stream_view()->note_height()) - 2.);
const double y = 1.5 + floor(midi_stream_view()->note_to_y(note->note())) + diamond_size * .5;
// see DnD note in MidiRegionView::apply_note_range() above
if (y <= 0 || y >= _height) {
ev->hide();
} else {
ev->show();
}
ev->set_position (ArdourCanvas::Duple (x, y));
ev->set_height (diamond_size);