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respond to MIDI max note height changes

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This commit is contained in:
Paul Davis 2023-02-05 12:24:12 -07:00
parent 2756be4b62
commit a365a7ebf3
1 changed files with 16 additions and 21 deletions
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37
gtk2_ardour/midi_streamview.cc
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@ -116,7 +116,7 @@ void
MidiStreamView::parameter_changed (string const & param)
{
if (param == X_("max-note-height")) {
apply_note_range_to_regions ();
apply_note_range (_lowest_note, _highest_note, true);
} else {
StreamView::parameter_changed (param);
}
@ -416,29 +416,24 @@ MidiStreamView::apply_note_range(uint8_t lowest, uint8_t highest, bool to_region
const int mnh = UIConfiguration::instance().get_max_note_height();
int const max_note_height = std::max<int> (mnh, mnh * uiscale);
int const range = _highest_note - _lowest_note;
int const pixels_per_note = floor (child_height () / range);
/* do not grow note height beyond 10 pixels */
if (pixels_per_note > max_note_height) {
int const available_note_range = floor (child_height() / max_note_height);
int additional_notes = available_note_range - range;
int const available_note_range = floor (child_height() / max_note_height);
int additional_notes = available_note_range - range;
/* distribute additional notes to higher and lower ranges, clamp at 0 and 127 */
for (int i = 0; i < additional_notes; i++){
/* distribute additional notes to higher and lower ranges, clamp at 0 and 127 */
for (int i = 0; i < additional_notes; i++){
if (i % 2 && _highest_note < 127){
_highest_note++;
}
else if (i % 2) {
_lowest_note--;
}
else if (_lowest_note > 0){
_lowest_note--;
}
else {
_highest_note++;
}
if (i % 2 && _highest_note < 127){
_highest_note++;
}
else if (i % 2) {
_lowest_note--;
}
else if (_lowest_note > 0){
_lowest_note--;
}
else {
_highest_note++;
}
}