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/*
* Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
* Copyright (C) 2016 Paul Davis <paul@linuxaudiosystems.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <gtkmm/table.h>
#include "gtkmm2ext/utils.h"
#include "gtkmm2ext/gtk_ui.h"
#include "gtkmm2ext/gui_thread.h"
#include "pbd/controllable.h"
#include "mono_panner_editor.h"
#include "mono_panner.h"
#include "pbd/i18n.h"
using namespace Gtk;
using namespace Gtkmm2ext;
using PBD::Controllable;
MonoPannerEditor::MonoPannerEditor (MonoPanner* p)
: PannerEditor (_("Mono Panner"))
, _panner (p)
, _ignore_changes (false)
{
Table* t = manage (new Table (2, 3));
t->set_spacings (6);
int n = 0;
t->attach (*manage (left_aligned_label (_("Left"))), 0, 1, n, n + 1);
t->attach (_left, 1, 2, n, n + 1);
t->attach (*manage (left_aligned_label (_("%"))), 2, 3, n, n + 1);
++n;
t->attach (*manage (left_aligned_label (_("Right"))), 0, 1, n, n + 1);
t->attach (_right, 1, 2, n, n + 1);
t->attach (*manage (left_aligned_label (_("%"))), 2, 3, n, n + 1);
++n;
get_vbox()->pack_start (*manage (t));
get_vbox()->set_spacing (6);
_left.set_increments (1, 10);
_left.set_range (0, 100);
_right.set_increments (1, 10);
_right.set_range (0, 100);
_panner->get_controllable()->Changed.connect (_connections, invalidator (*this), boost::bind (&MonoPannerEditor::update_editor, this), gui_context ());
_panner->DropReferences.connect (_connections, invalidator (*this), boost::bind (&MonoPannerEditor::panner_going_away, this), gui_context ());
_left.signal_value_changed().connect (sigc::mem_fun (*this, &MonoPannerEditor::left_changed));
_right.signal_value_changed().connect (sigc::mem_fun (*this, &MonoPannerEditor::right_changed));
show_all ();
update_editor ();
}
void
MonoPannerEditor::panner_going_away ()
{
_panner = 0;
}
void
MonoPannerEditor::update_editor ()
{
if (!_panner) {
return;
}
float const v = _panner->get_controllable()->get_value();
_ignore_changes = true;
_left.set_value (100 * (1 - v));
_right.set_value (100 * v);
_ignore_changes = false;
}
void
MonoPannerEditor::left_changed ()
{
if (_ignore_changes || !_panner) {
return;
}
float const v = 1 - _left.get_value () / 100;
_ignore_changes = true;
_right.set_value (100 * v);
_panner->get_controllable()->set_value (v, Controllable::NoGroup);
_ignore_changes = false;
}
void
MonoPannerEditor::right_changed ()
{
if (_ignore_changes || !_panner) {
return;
}
float const v = _right.get_value () / 100;
_ignore_changes = true;
_left.set_value (100 * (1 - v));
_panner->get_controllable()->set_value (v, Controllable::NoGroup);
_ignore_changes = false;
}
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