Paul Davis
a01dc9b6f2
git-svn-id: svn://localhost/ardour2/branches/3.0@7196 d708f5d6-7413-0410-9779-e7cbd77b26cf
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/*
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Copyright (C) 2001 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "pbd/memento_command.h"
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#include "pbd/stateful_diff_command.h"
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#include "ardour/session.h"
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#include "ardour/audioregion.h"
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#include "ardour/playlist.h"
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#include "ardour/utils.h"
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#include "ardour/dB.h"
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#include <gtkmm2ext/utils.h>
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#include <cmath>
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#include "audio_region_editor.h"
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#include "audio_region_view.h"
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#include "ardour_ui.h"
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#include "utils.h"
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#include "gui_thread.h"
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#include "i18n.h"
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using namespace ARDOUR;
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using namespace PBD;
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using namespace std;
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using namespace Gtkmm2ext;
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AudioRegionEditor::AudioRegionEditor (Session* s, boost::shared_ptr<AudioRegion> r)
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: RegionEditor (s, r)
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, _audio_region (r)
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, gain_adjustment(accurate_coefficient_to_dB(_audio_region->scale_amplitude()), -40.0, +40.0, 0.1, 1.0, 0)
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{
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gain_label.set_alignment (1, 0.5);
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Gtk::HBox* gb = Gtk::manage (new Gtk::HBox);
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gb->set_spacing (6);
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gb->pack_start (gain_entry);
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gb->pack_start (*Gtk::manage (new Gtk::Label (_("dB"))), false, false);
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gain_label.set_name ("AudioRegionEditorLabel");
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gain_label.set_text (_("Region gain:"));
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gain_entry.configure (gain_adjustment, 0.0, 1);
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_table.attach (gain_label, 0, 1, 7, 8, Gtk::FILL, Gtk::FILL);
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_table.attach (*gb, 1, 2, 7, 8, Gtk::FILL, Gtk::FILL);
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gain_changed ();
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gain_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &AudioRegionEditor::gain_adjustment_changed));
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}
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void
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AudioRegionEditor::region_changed (const PBD::PropertyChange& what_changed)
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{
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RegionEditor::region_changed (what_changed);
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if (what_changed.contains (ARDOUR::Properties::scale_amplitude)) {
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gain_changed ();
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}
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}
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void
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AudioRegionEditor::gain_changed ()
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{
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float const region_gain_dB = accurate_coefficient_to_dB (_audio_region->scale_amplitude());
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if (region_gain_dB != gain_adjustment.get_value()) {
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gain_adjustment.set_value(region_gain_dB);
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}
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}
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void
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AudioRegionEditor::gain_adjustment_changed ()
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{
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float const gain = dB_to_coefficient (gain_adjustment.get_value());
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if (_audio_region->scale_amplitude() != gain) {
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_audio_region->set_scale_amplitude (gain);
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}
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}
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