ardour/livetrax
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tempo curve fiddling.

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This commit is contained in:
nick_m 2016-12-11 23:55:13 +11:00
parent c3ab67ddb6
commit 22f17a3007
1 changed files with 6 additions and 5 deletions
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11
gtk2_ardour/tempo_curve.cc
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@ -112,14 +112,15 @@ TempoCurve::set_position (framepos_t frame, framepos_t end_frame)
points->push_back (ArdourCanvas::Duple (0.0, curve_height));
if (end_frame == (framepos_t) UINT32_MAX) {
if (frame >= end_frame) {
/* shouldn't happen but ..*/
const double tempo_at = _tempo.note_types_per_minute();
const double y_pos = (curve_height) - (((tempo_at - _min_tempo) / (_max_tempo - _min_tempo)) * curve_height);
points->push_back (ArdourCanvas::Duple (0.0, y_pos));
points->push_back (ArdourCanvas::Duple (ArdourCanvas::COORD_MAX - 5.0, y_pos));
points->push_back (ArdourCanvas::Duple (1.0, y_pos));
} else if (_tempo.type() == ARDOUR::TempoSection::Constant) {
} else if (_tempo.type() == ARDOUR::TempoSection::Constant || _tempo.c_func() == 0.0) {
const double tempo_at = _tempo.note_types_per_minute();
const double y_pos = (curve_height) - (((tempo_at - _min_tempo) / (_max_tempo - _min_tempo)) * curve_height);
@ -130,7 +131,7 @@ TempoCurve::set_position (framepos_t frame, framepos_t end_frame)
const framepos_t frame_step = max ((end_frame - frame) / 5, (framepos_t) 1);
framepos_t current_frame = frame;
while (current_frame < (end_frame - frame_step)) {
while (current_frame < end_frame) {
const double tempo_at = _tempo.tempo_at_minute (_tempo.minute_at_frame (current_frame)).note_types_per_minute();
const double y_pos = max ((curve_height) - (((tempo_at - _min_tempo) / (_max_tempo - _min_tempo)) * curve_height), 0.0);
@ -142,7 +143,7 @@ TempoCurve::set_position (framepos_t frame, framepos_t end_frame)
const double tempo_at = _tempo.tempo_at_minute (_tempo.minute_at_frame (end_frame)).note_types_per_minute();
const double y_pos = max ((curve_height) - (((tempo_at - _min_tempo) / (_max_tempo - _min_tempo)) * curve_height), 0.0);
points->push_back (ArdourCanvas::Duple (editor.sample_to_pixel ((end_frame - 1) - frame), min (y_pos, curve_height)));
points->push_back (ArdourCanvas::Duple (editor.sample_to_pixel (end_frame - frame), min (y_pos, curve_height)));
}
_curve->set (*points);