2 Copyright (C) 2001 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include "pbd/memento_command.h"
21 #include "pbd/stateful_diff_command.h"
23 #include "ardour/session.h"
24 #include "ardour/audioregion.h"
25 #include "ardour/playlist.h"
26 #include "ardour/utils.h"
27 #include "ardour/dB.h"
28 #include <gtkmm2ext/utils.h>
31 #include "audio_region_editor.h"
32 #include "audio_region_view.h"
33 #include "ardour_ui.h"
35 #include "gui_thread.h"
39 using namespace ARDOUR
;
42 using namespace Gtkmm2ext
;
44 AudioRegionEditor::AudioRegionEditor (Session
* s
, boost::shared_ptr
<AudioRegion
> r
)
47 , gain_adjustment(accurate_coefficient_to_dB(_audio_region
->scale_amplitude()), -40.0, +40.0, 0.1, 1.0, 0)
50 gain_label
.set_alignment (1, 0.5);
52 Gtk::HBox
* gb
= Gtk::manage (new Gtk::HBox
);
54 gb
->pack_start (gain_entry
);
55 gb
->pack_start (*Gtk::manage (new Gtk::Label (_("dB"))), false, false);
57 gain_label
.set_name ("AudioRegionEditorLabel");
58 gain_label
.set_text (_("Region gain:"));
59 gain_entry
.configure (gain_adjustment
, 0.0, 1);
60 _table
.attach (gain_label
, 0, 1, 7, 8, Gtk::FILL
, Gtk::FILL
);
61 _table
.attach (*gb
, 1, 2, 7, 8, Gtk::FILL
, Gtk::FILL
);
65 gain_adjustment
.signal_value_changed().connect (sigc::mem_fun (*this, &AudioRegionEditor::gain_adjustment_changed
));
69 AudioRegionEditor::region_changed (const PBD::PropertyChange
& what_changed
)
71 RegionEditor::region_changed (what_changed
);
73 if (what_changed
.contains (ARDOUR::Properties::scale_amplitude
)) {
78 AudioRegionEditor::gain_changed ()
80 float const region_gain_dB
= accurate_coefficient_to_dB (_audio_region
->scale_amplitude());
81 if (region_gain_dB
!= gain_adjustment
.get_value()) {
82 gain_adjustment
.set_value(region_gain_dB
);
87 AudioRegionEditor::gain_adjustment_changed ()
89 float const gain
= dB_to_coefficient (gain_adjustment
.get_value());
90 if (_audio_region
->scale_amplitude() != gain
) {
91 _audio_region
->set_scale_amplitude (gain
);