46e448252f
mono and stereo panners. git-svn-id: svn://localhost/ardour2/branches/3.0@12577 d708f5d6-7413-0410-9779-e7cbd77b26cf
120 lines
3.1 KiB
C++
120 lines
3.1 KiB
C++
/*
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Copyright (C) 2012 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 <gtkmm.h>
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#include "gtkmm2ext/utils.h"
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#include "gtkmm2ext/gtk_ui.h"
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#include "gtkmm2ext/gui_thread.h"
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#include "pbd/controllable.h"
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#include "mono_panner_editor.h"
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#include "mono_panner.h"
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#include "i18n.h"
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using namespace Gtk;
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using namespace Gtkmm2ext;
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MonoPannerEditor::MonoPannerEditor (MonoPanner* p)
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: PannerEditor (_("Mono Panner"))
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, _panner (p)
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, _ignore_changes (false)
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{
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Table* t = manage (new Table (2, 3));
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t->set_spacings (6);
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int n = 0;
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t->attach (*manage (left_aligned_label (_("Left"))), 0, 1, n, n + 1);
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t->attach (_left, 1, 2, n, n + 1);
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t->attach (*manage (left_aligned_label (_("%"))), 2, 3, n, n + 1);
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++n;
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t->attach (*manage (left_aligned_label (_("Right"))), 0, 1, n, n + 1);
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t->attach (_right, 1, 2, n, n + 1);
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t->attach (*manage (left_aligned_label (_("%"))), 2, 3, n, n + 1);
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++n;
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get_vbox()->pack_start (*manage (t));
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get_vbox()->set_spacing (6);
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_left.set_increments (1, 10);
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_left.set_range (0, 100);
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_right.set_increments (1, 10);
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_right.set_range (0, 100);
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_panner->get_controllable()->Changed.connect (_connections, invalidator (*this), boost::bind (&MonoPannerEditor::update_editor, this), gui_context ());
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_panner->DropReferences.connect (_connections, invalidator (*this), boost::bind (&MonoPannerEditor::panner_going_away, this), gui_context ());
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_left.signal_value_changed().connect (sigc::mem_fun (*this, &MonoPannerEditor::left_changed));
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_right.signal_value_changed().connect (sigc::mem_fun (*this, &MonoPannerEditor::right_changed));
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show_all ();
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update_editor ();
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}
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void
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MonoPannerEditor::panner_going_away ()
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{
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_panner = 0;
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}
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void
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MonoPannerEditor::update_editor ()
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{
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if (!_panner) {
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return;
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}
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float const v = _panner->get_controllable()->get_value();
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_ignore_changes = true;
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_left.set_value (100 * (1 - v));
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_right.set_value (100 * v);
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_ignore_changes = false;
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}
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void
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MonoPannerEditor::left_changed ()
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{
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if (_ignore_changes || !_panner) {
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return;
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}
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float const v = 1 - _left.get_value () / 100;
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_ignore_changes = true;
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_right.set_value (100 * v);
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_panner->get_controllable()->set_value (v);
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_ignore_changes = false;
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}
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void
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MonoPannerEditor::right_changed ()
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{
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if (_ignore_changes || !_panner) {
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return;
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}
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float const v = _right.get_value () / 100;
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_ignore_changes = true;
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_left.set_value (100 * (1 - v));
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_panner->get_controllable()->set_value (v);
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_ignore_changes = false;
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}
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