From 002ff65d0f75431bb42cc29836d6237ba1b7d704 Mon Sep 17 00:00:00 2001 From: Carl Hetherington Date: Fri, 23 Oct 2009 23:21:55 +0000 Subject: Patch from colinf to show region gain in the region editor (mantis 2879) git-svn-id: svn://localhost/ardour2/branches/3.0@5899 d708f5d6-7413-0410-9779-e7cbd77b26cf --- gtk2_ardour/audio_region_editor.cc | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) (limited to 'gtk2_ardour/audio_region_editor.cc') diff --git a/gtk2_ardour/audio_region_editor.cc b/gtk2_ardour/audio_region_editor.cc index 62fd14b16d..cee59ec647 100644 --- a/gtk2_ardour/audio_region_editor.cc +++ b/gtk2_ardour/audio_region_editor.cc @@ -22,6 +22,7 @@ #include "ardour/audioregion.h" #include "ardour/playlist.h" #include "ardour/utils.h" +#include "ardour/dB.h" #include #include #include @@ -53,7 +54,8 @@ AudioRegionEditor::AudioRegionEditor (Session& s, boost::shared_ptr sync_offset_relative_clock (X_("regionsyncoffsetrelative"), true, X_("AudioRegionEditorClock"), true), sync_offset_absolute_clock (X_("regionsyncoffsetabsolute"), true, X_("AudioRegionEditorClock"), true), /* XXX cannot file start yet */ - start_clock (X_("regionstart"), true, X_("AudioRegionEditorClock"), false) + start_clock (X_("regionstart"), true, X_("AudioRegionEditorClock"), false), + gain_adjustment(accurate_coefficient_to_dB(_region->scale_amplitude()), -40.0, +40.0, 0.1, 1.0, 0) { position_clock.set_session (&_session); @@ -125,6 +127,13 @@ AudioRegionEditor::AudioRegionEditor (Session& s, boost::shared_ptr time_table.attach (start_label, 0, 1, 5, 6, Gtk::FILL, Gtk::FILL); time_table.attach (start_clock, 1, 2, 5, 6, Gtk::FILL, Gtk::FILL); + gain_label.set_name ("AudioRegionEditorLabel"); + gain_label.set_text (_("Scale amplitude:")); + gain_label.set_alignment (1, 0.5); + gain_entry.configure (gain_adjustment, 0.0, 1); + time_table.attach (gain_label, 0, 1, 6, 7, Gtk::FILL, Gtk::FILL); + time_table.attach (gain_entry, 1, 2, 6, 7, Gtk::FILL, Gtk::FILL); + lower_hbox.pack_start (time_table, true, true); lower_hbox.pack_start (sep1, false, false); lower_hbox.pack_start (sep2, false, false); @@ -144,6 +153,7 @@ AudioRegionEditor::AudioRegionEditor (Session& s, boost::shared_ptr name_changed (); bounds_changed (Change (StartChanged|LengthChanged|PositionChanged|StartChanged|Region::SyncOffsetChanged)); + gain_changed (); _region->StateChanged.connect (mem_fun(*this, &AudioRegionEditor::region_changed)); @@ -166,6 +176,10 @@ AudioRegionEditor::region_changed (Change what_changed) if (what_changed & Change (BoundsChanged|StartChanged|Region::SyncOffsetChanged)) { bounds_changed (what_changed); } + + if (what_changed & AudioRegion::ScaleAmplitudeChanged) { + gain_changed (); + } } gint @@ -211,6 +225,7 @@ AudioRegionEditor::connect_editor_events () length_clock.ValueChanged.connect (mem_fun(*this, &AudioRegionEditor::length_clock_changed)); sync_offset_absolute_clock.ValueChanged.connect (mem_fun (*this, &AudioRegionEditor::sync_offset_absolute_clock_changed)); sync_offset_relative_clock.ValueChanged.connect (mem_fun (*this, &AudioRegionEditor::sync_offset_relative_clock_changed)); + gain_adjustment.signal_value_changed().connect (mem_fun (*this, &AudioRegionEditor::gain_adjustment_changed)); audition_button.signal_toggled().connect (mem_fun(*this, &AudioRegionEditor::audition_button_toggled)); _session.AuditionActive.connect (mem_fun(*this, &AudioRegionEditor::audition_state_changed)); @@ -273,6 +288,24 @@ AudioRegionEditor::length_clock_changed () length_clock.set (_region->length()); } +void +AudioRegionEditor::gain_changed () +{ + float const region_gain_dB = accurate_coefficient_to_dB (_region->scale_amplitude()); + if (region_gain_dB != gain_adjustment.get_value()) { + gain_adjustment.set_value(region_gain_dB); + } +} + +void +AudioRegionEditor::gain_adjustment_changed () +{ + float const gain = dB_to_coefficient (gain_adjustment.get_value()); + if (_region->scale_amplitude() != gain) { + _region->set_scale_amplitude (gain); + } +} + void AudioRegionEditor::audition_button_toggled () { -- cgit v1.2.3