/*  smplayer, GUI front-end for mplayer.
    Copyright (C) 2006-2010 Ricardo Villalba <rvm@escomposlinux.org>

    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "audioequalizer.h"
#include "eqslider.h"
#include "images.h"
#include "preferences.h"
#include "global.h"
#include <QLayout>
#include <QPushButton>
#include <QMessageBox>

using namespace Global;

AudioEqualizer::AudioEqualizer( QWidget* parent, Qt::WindowFlags f)
    : QWidget(parent, f)
{
    QBoxLayout *bl = new QHBoxLayout; //(0, 4, 2);

    for (int n = 0; n < 10; n++)
    {
        eq[n] = new EqSlider(this);
        eq[n]->setIcon( QPixmap() );
        eq[n]->sliderWidget()->setRange(-120, 120);
        bl->addWidget(eq[n]);
    }

    reset_button = new QPushButton( "&Reset", this);
    connect( reset_button, SIGNAL(clicked()), this, SLOT(reset()) );

    set_default_button = new QPushButton( "&Set as default values", this );
    connect( set_default_button, SIGNAL(clicked()), this, SLOT(setDefaults()) );

    apply_button = new QPushButton( "&Apply", this );
    connect( apply_button, SIGNAL(clicked()), this, SLOT(applyButtonClicked()) );

    QBoxLayout *button_layout = new QHBoxLayout; //(0, 4, 2);
    button_layout->addStretch();
    button_layout->addWidget(apply_button);
    button_layout->addWidget(reset_button);
    button_layout->addWidget(set_default_button);

    QBoxLayout *layout = new QVBoxLayout(this); //, 4, 2);
    layout->addLayout(bl);
    layout->addLayout(button_layout);

    retranslateStrings();

    adjustSize();
    //setFixedSize( sizeHint() );
}

AudioEqualizer::~AudioEqualizer()
{
}

void AudioEqualizer::retranslateStrings()
{
    setWindowTitle( tr("Audio Equalizer") );
    setWindowIcon( Images::icon("logo") );

    eq[0]->setLabel( tr("31.25 Hz") );
    eq[1]->setLabel( tr("62.50 Hz") );
    eq[2]->setLabel( tr("125.0 Hz") );
    eq[3]->setLabel( tr("250.0 Hz") );
    eq[4]->setLabel( tr("500.0 Hz") );
    eq[5]->setLabel( tr("1.000 kHz") );
    eq[6]->setLabel( tr("2.000 kHz") );
    eq[7]->setLabel( tr("4.000 kHz") );
    eq[8]->setLabel( tr("8.000 kHz") );
    eq[9]->setLabel( tr("16.00 kHz") );

    apply_button->setText( tr("&Apply") );
    reset_button->setText( tr("&Reset") );
    set_default_button->setText( tr("&Set as default values") );

    // What's this help:
    set_default_button->setWhatsThis(
        tr("Use the current values as default values for new videos.") );

    reset_button->setWhatsThis( tr("Set all controls to zero.") );

}

void AudioEqualizer::reset()
{
    for (int n = 0; n < 10; n++)
    {
        eq[n]->setValue(0);
    }
}

void AudioEqualizer::setDefaults()
{
    AudioEqualizerList l;
    for (int n = 0; n < 10; n++)
    {
        l << eq[n]->value();
    }
    pref->initial_audio_equalizer = l;

    QMessageBox::information(this, tr("Information"),
                             tr("The current values have been stored to be "
                                "used as default.") );
}

void AudioEqualizer::applyButtonClicked()
{
    AudioEqualizerList l;
    for (int n = 0; n < 10; n++)
    {
        l << eq[n]->value();
    }
    emit applyClicked( l );
}

void AudioEqualizer::hideEvent( QHideEvent * )
{
    emit visibilityChanged();
}

void AudioEqualizer::showEvent( QShowEvent * )
{
    emit visibilityChanged();
}

// Language change stuff
void AudioEqualizer::changeEvent(QEvent *e)
{
    if (e->type() == QEvent::LanguageChange)
    {
        retranslateStrings();
    }
    else
    {
        QWidget::changeEvent(e);
    }
}

#include "moc_audioequalizer.cpp"
