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GUI support for per region polarity invert

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Robin Gareus 2022-12-17 12:37:32 +01:00
parent 5b52aa956f
commit 9819cdb117
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GPG key ID: A090BCE02CF57F04
4 changed files with 28 additions and 9 deletions
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20
gtk2_ardour/audio_region_editor.cc
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@ -55,7 +55,8 @@ _peak_amplitude_thread (void* arg)
AudioRegionEditor::AudioRegionEditor (Session* s, boost::shared_ptr<AudioRegion> r)
: RegionEditor (s, r)
, _audio_region (r)
, gain_adjustment(accurate_coefficient_to_dB(_audio_region->scale_amplitude()), -40.0, +40.0, 0.1, 1.0, 0)
, gain_adjustment(accurate_coefficient_to_dB(fabsf (_audio_region->scale_amplitude())), -40.0, +40.0, 0.1, 1.0, 0)
, _polarity_toggle (_("Invert"))
, _peak_channel (false)
{
@ -84,9 +85,16 @@ AudioRegionEditor::AudioRegionEditor (Session* s, boost::shared_ptr<AudioRegion>
_table.attach (*b, 1, 2, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
++_table_row;
_polarity_label.set_name ("AudioRegionEditorLabel");
_polarity_label.set_text (_("Polarity:"));
_table.attach (_polarity_label, 0, 1, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
_table.attach (_polarity_toggle, 1, 2, _table_row, _table_row + 1, Gtk::FILL, Gtk::FILL);
++_table_row;
gain_changed ();
gain_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &AudioRegionEditor::gain_adjustment_changed));
_polarity_toggle.signal_toggled().connect (sigc::mem_fun (*this, &AudioRegionEditor::gain_adjustment_changed));
_peak_amplitude.property_editable() = false;
_peak_amplitude.set_text (_("Calculating..."));
@ -123,16 +131,22 @@ AudioRegionEditor::region_changed (const PBD::PropertyChange& what_changed)
void
AudioRegionEditor::gain_changed ()
{
float const region_gain_dB = accurate_coefficient_to_dB (_audio_region->scale_amplitude());
const gain_t scale_amplitude = _audio_region->scale_amplitude();
float const region_gain_dB = accurate_coefficient_to_dB (fabsf (scale_amplitude));
if (region_gain_dB != gain_adjustment.get_value()) {
gain_adjustment.set_value(region_gain_dB);
}
_polarity_toggle.set_active (scale_amplitude < 0);
}
void
AudioRegionEditor::gain_adjustment_changed ()
{
float const gain = dB_to_coefficient (gain_adjustment.get_value());
float gain = dB_to_coefficient (gain_adjustment.get_value());
if (_polarity_toggle.get_active ()) {
gain *= -1;
}
if (_audio_region->scale_amplitude() != gain) {
_audio_region->set_scale_amplitude (gain);
}