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Add scroll-wheel support to RT Analyzer

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Robin Gareus 2025-04-05 20:53:15 +02:00
parent 24e8784719
commit 635fcdc206
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GPG key ID: A090BCE02CF57F04
2 changed files with 33 additions and 0 deletions
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32
gtk2_ardour/rta_window.cc
View file

@ -61,6 +61,7 @@ RTAWindow::RTAWindow ()
_darea.signal_button_press_event ().connect (sigc::mem_fun (*this, &RTAWindow::darea_button_press_event)); _darea.signal_button_press_event ().connect (sigc::mem_fun (*this, &RTAWindow::darea_button_press_event));
_darea.signal_button_release_event ().connect (sigc::mem_fun (*this, &RTAWindow::darea_button_release_event)); _darea.signal_button_release_event ().connect (sigc::mem_fun (*this, &RTAWindow::darea_button_release_event));
_darea.signal_motion_notify_event ().connect (sigc::mem_fun (*this, &RTAWindow::darea_motion_notify_event)); _darea.signal_motion_notify_event ().connect (sigc::mem_fun (*this, &RTAWindow::darea_motion_notify_event));
_darea.signal_scroll_event ().connect (sigc::mem_fun (*this, &RTAWindow::darea_scroll_event), false);
_darea.signal_leave_notify_event ().connect (sigc::mem_fun (*this, &RTAWindow::darea_leave_notify_event), false); _darea.signal_leave_notify_event ().connect (sigc::mem_fun (*this, &RTAWindow::darea_leave_notify_event), false);
_speed_strings.push_back (_("Rapid")); _speed_strings.push_back (_("Rapid"));
@ -432,6 +433,37 @@ RTAWindow::darea_motion_notify_event (GdkEventMotion* ev)
return true; return true;
} }
bool
RTAWindow::darea_scroll_event (GdkEventScroll* ev)
{
if (_dragging_dB != DragNone || !_hovering_dB) {
return true;
}
float new_dB = _min_dB;
switch (ev->direction) {
case GDK_SCROLL_UP:
new_dB += 1;
break;
case GDK_SCROLL_DOWN:
new_dB -= 1;
break;
default:
return true;
}
/* compare to DragRange */
float min_dB = rintf (std::max (_dB_min, std::min (new_dB, _max_dB - _dB_span)));
float dbd = (min_dB - _min_dB);
float max_dB = rintf (std::min (_dB_min + _dB_range, std::max (_max_dB + dbd, _min_dB + _dB_span)));
dbd = std::min<float> (dbd, max_dB - _max_dB);
_max_dB += dbd;
_min_dB += dbd;
_grid.clear ();
_darea.queue_draw ();
return true;
}
void void
RTAWindow::darea_size_allocate (Gtk::Allocation&) RTAWindow::darea_size_allocate (Gtk::Allocation&)
{ {

1
gtk2_ardour/rta_window.h
View file

@ -56,6 +56,7 @@ private:
bool darea_button_press_event (GdkEventButton*); bool darea_button_press_event (GdkEventButton*);
bool darea_button_release_event (GdkEventButton*); bool darea_button_release_event (GdkEventButton*);
bool darea_motion_notify_event (GdkEventMotion*); bool darea_motion_notify_event (GdkEventMotion*);
bool darea_scroll_event (GdkEventScroll*);
bool darea_leave_notify_event (GdkEventCrossing*); bool darea_leave_notify_event (GdkEventCrossing*);
void set_rta_speed (ARDOUR::DSP::PerceptualAnalyzer::Speed); void set_rta_speed (ARDOUR::DSP::PerceptualAnalyzer::Speed);