normalize_dialog.cc

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/*
    Copyright (C) 2010 Paul Davis

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include <gtkmm/label.h>
#include <gtkmm/spinbutton.h>
#include <gtkmm/radiobutton.h>
#include <gtkmm/stock.h>
#include <gtkmm/progressbar.h>
#include "normalize_dialog.h"
#include "i18n.h"

using namespace Gtk;

double NormalizeDialog::_last_normalization_value = 0;
bool NormalizeDialog::_last_normalize_individually = true;

NormalizeDialog::NormalizeDialog (bool more_than_one)
        : ArdourDialog (more_than_one ? _("Normalize regions") : _("Normalize region"))
        , _normalize_individually (0)
{
        get_vbox()->set_spacing (12);

        HBox* hbox = manage (new HBox);
        hbox->set_spacing (6);
        hbox->set_border_width (6);
        hbox->pack_start (*manage (new Label (_("Normalize to:"))), false, false);
        _spin = manage (new SpinButton (0.2, 2));
        _spin->set_range (-112, 0);
        _spin->set_increments (0.1, 1);
        _spin->set_value (_last_normalization_value);
        _spin->set_activates_default ();
        hbox->pack_start (*_spin, false, false);
        hbox->pack_start (*manage (new Label (_("dbFS"))), false, false);
        get_vbox()->pack_start (*hbox);

        if (more_than_one) {
                RadioButtonGroup group;
                VBox* vbox = manage (new VBox);

                _normalize_individually = manage (new RadioButton (group, _("Normalize each region using its own peak value")));
                vbox->pack_start (*_normalize_individually);
                RadioButton* b = manage (new RadioButton (group, _("Normalize each region using the peak value of all regions")));
                vbox->pack_start (*b);

                _normalize_individually->set_active (_last_normalize_individually);
                b->set_active (!_last_normalize_individually);

                get_vbox()->pack_start (*vbox);
        }

        _progress_bar = manage (new ProgressBar);
        get_vbox()->pack_start (*_progress_bar);

        show_all ();

        add_button (Stock::CANCEL, RESPONSE_CANCEL);
        add_button (_("Normalize"), RESPONSE_ACCEPT);
        set_default_response (RESPONSE_ACCEPT);

        signal_response().connect (sigc::mem_fun (*this, &NormalizeDialog::button_clicked));
}

bool
NormalizeDialog::normalize_individually () const
{
        if (_normalize_individually == 0) {
                return true;
        }

        return _normalize_individually->get_active ();
}

double
NormalizeDialog::target () const
{
        return _spin->get_value ();
}

void
NormalizeDialog::update_progress_gui (float p)
{
        _progress_bar->set_fraction (p);
}

int
NormalizeDialog::run ()
{
        int const r = ArdourDialog::run ();
        _last_normalization_value = target ();
        if (_normalize_individually) {
                _last_normalize_individually = _normalize_individually->get_active ();
        }
        return r;
}

void
NormalizeDialog::button_clicked (int r)
{
        if (r == RESPONSE_CANCEL) {
                cancel ();
        }
}