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mediaplayer.cpp

/****************************************************************************
**
** Copyright (C) 2007-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
** your option) use any later version of the GNU General Public
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** (or its successors, if any) and the KDE Free Qt Foundation. In
** addition, as a special exception, Trolltech gives you certain
** additional rights. These rights are described in the Trolltech GPL
** Exception version 1.2, which can be found at
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** GPL_EXCEPTION.txt in this package.
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***************************************************************************/

#include <QtGui>

#define SLIDER_RANGE 8
#define TICKINTERVAL 4

#include "mediaplayer.h"
#include "ui_settings.h"


class MediaVideoWidget : public Phonon::VideoWidget
{
public:
    MediaVideoWidget(MediaPlayer *player, QWidget *parent = 0) : 
        Phonon::VideoWidget(parent), m_player(player), m_action(this)
    {
        m_action.setCheckable(true);
        m_action.setChecked(false);
        m_action.setShortcut(QKeySequence( Qt::AltModifier + Qt::Key_Return));
        m_action.setShortcutContext(Qt::WindowShortcut);
        connect(&m_action, SIGNAL(toggled(bool)), SLOT(setFullScreen(bool)));
        addAction(&m_action);
        setAcceptDrops(true);     
    }

protected:
    void mouseDoubleClickEvent(QMouseEvent *e)
    {
        Phonon::VideoWidget::mouseDoubleClickEvent(e);
        setFullScreen(!isFullScreen());
    }

    void keyPressEvent(QKeyEvent *e)
    {
        if (e->key() == Qt::Key_Space && !e->modifiers()) {
            m_player->playPause();
            e->accept();
            return;
        } else if (e->key() == Qt::Key_Escape && !e->modifiers()) {
            setFullScreen(false);
            e->accept();
            return;
        }
        Phonon::VideoWidget::keyPressEvent(e);        
    }

    bool event(QEvent *e)
    {
        switch(e->type())
        {
        case QEvent::Close:
            //we just ignore the cose events on the video widget
            //this prevents ALT+F4 from having an effect in fullscreen mode
            e->ignore(); 
            return true;
        case QEvent::MouseMove:
            unsetCursor();
            //fall through
        case QEvent::WindowStateChange:
            {
                //we just update the state of the checkbox, in case it wasn't already
                m_action.setChecked(windowState() & Qt::WindowFullScreen);
                const Qt::WindowFlags flags = m_player->windowFlags();
                if (windowState() & Qt::WindowFullScreen) {
                    m_timer.start(1000, this);
                } else {
                    m_timer.stop();
                    unsetCursor();
                }
            }
            break;
        default:
            break;
        }

        return Phonon::VideoWidget::event(e);
    }

    void timerEvent(QTimerEvent *e)
    {
        if (e->timerId() == m_timer.timerId()) {
            //let's store the cursor shape
            setCursor(Qt::BlankCursor);
        }
        Phonon::VideoWidget::timerEvent(e);
    }

    void dropEvent(QDropEvent *e)
    {
        m_player->handleDrop(e);
    }

    void dragEnterEvent(QDragEnterEvent *e) {
        if (e->mimeData()->hasUrls())
            e->acceptProposedAction();
    }

private:
    MediaPlayer *m_player;
    QBasicTimer m_timer;
    QAction m_action;
};


MediaPlayer::MediaPlayer(const QString &filePath) :
        playButton(0), volumeLabel(0), nextEffect(0), settingsDialog(0), ui(0), 
            m_AudioOutput(Phonon::VideoCategory),
            m_videoWidget(new MediaVideoWidget(this))
{
    setWindowTitle("Media Player");
    setContextMenuPolicy(Qt::CustomContextMenu);
    m_videoWidget->setContextMenuPolicy(Qt::CustomContextMenu);
 
    QSize buttonSize(34, 28);

    QPushButton *openButton = new QPushButton(this);

    openButton->setIcon(style()->standardIcon(QStyle::SP_DialogOpenButton));
    QPalette bpal;
    QColor arrowcolor = bpal.buttonText().color();
    if (arrowcolor == Qt::black)
        arrowcolor = QColor(80, 80, 80);
    bpal.setBrush(QPalette::ButtonText, arrowcolor);
    openButton->setPalette(bpal);

    rewindButton = new QPushButton(this);
    rewindButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipBackward));

    forwardButton = new QPushButton(this);
    forwardButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipForward));
    forwardButton->setEnabled(false);

    playButton = new QPushButton(this);
    playIcon = style()->standardIcon(QStyle::SP_MediaPlay);
    pauseIcon = style()->standardIcon(QStyle::SP_MediaPause);
    playButton->setIcon(playIcon);

    slider = new Phonon::SeekSlider(this);
    slider->setMediaObject(&m_MediaObject);
    volume = new QSlider(Qt::Horizontal, this);

    QVBoxLayout *vLayout = new QVBoxLayout(this);
    vLayout->setContentsMargins(8, 8, 8, 8);    

    QHBoxLayout *layout = new QHBoxLayout();

    info = new QLabel(this);
    info->setMinimumHeight(70);
    info->setAcceptDrops(false);
    info->setMargin(2);
    info->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
    info->setLineWidth(2);
    info->setAutoFillBackground(true);

    QPalette palette;
    palette.setBrush(QPalette::WindowText, Qt::white);
#ifndef Q_WS_MAC
    openButton->setMinimumSize(47, buttonSize.height());
    rewindButton->setMinimumSize(buttonSize);
    forwardButton->setMinimumSize(buttonSize);
    playButton->setMinimumSize(buttonSize);
#endif
    info->setStyleSheet("border-image:url(:/images/screen.png) ; border-width:3px");
    info->setPalette(palette);
    info->setText("<center>No media</center>");

    volume->setRange(0, 100);
    volume->setValue(100);
    volume->setMinimumWidth(40);

    layout->addWidget(openButton);
    layout->addWidget(rewindButton);
    layout->addWidget(playButton);
    layout->addWidget(forwardButton);

    volumeLabel = new QLabel(this);
    volumeIcon = style()->standardPixmap(QStyle::SP_MediaVolume);
    mutedIcon = style()->standardPixmap(QStyle::SP_MediaVolumeMuted);
    volumeLabel->setPixmap(volumeIcon);
    volume->setFixedWidth(100);
    layout->addStretch();
    layout->addWidget(volumeLabel);
    layout->addWidget(volume);

    vLayout->addWidget(info);
    initVideoWindow();
    vLayout->addWidget(&m_videoWindow);
    QVBoxLayout *buttonPanelLayout = new QVBoxLayout();
    m_videoWindow.hide();
    buttonPanelLayout->addLayout(layout);
    
    timeLabel = new QLabel(this);
    progressLabel = new QLabel(this);
    QWidget *sliderPanel = new QWidget(this);
    QHBoxLayout *sliderLayout = new QHBoxLayout();
    sliderLayout->addWidget(slider);
    sliderLayout->addWidget(timeLabel);    
    sliderLayout->addWidget(progressLabel);    
    sliderLayout->setContentsMargins(0, 0, 0, 0);
    sliderPanel->setLayout(sliderLayout);

    buttonPanelLayout->addWidget(sliderPanel);
    buttonPanelLayout->setContentsMargins(0, 0, 0, 0);
#ifdef Q_OS_MAC
    layout->setSpacing(4);
    buttonPanelLayout->setSpacing(0);
    info->setMinimumHeight(100);
    info->setFont(QFont("verdana", 15));
    // QStyle *flatButtonStyle = new QWindowsStyle;
    openButton->setFocusPolicy(Qt::NoFocus);
    // openButton->setStyle(flatButtonStyle);
    // playButton->setStyle(flatButtonStyle);
    // rewindButton->setStyle(flatButtonStyle);
    // forwardButton->setStyle(flatButtonStyle);
 #endif
    QWidget *buttonPanelWidget = new QWidget(this);
    buttonPanelWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed); 
    buttonPanelWidget->setLayout(buttonPanelLayout);    
    vLayout->addWidget(buttonPanelWidget);
 
    QHBoxLayout *labelLayout = new QHBoxLayout();

    vLayout->addLayout(labelLayout);
    setLayout(vLayout);

    // Create menu bar:
    fileMenu = new QMenu(this);
    QAction *openFileAction = fileMenu->addAction(tr("Open &File..."));
    QAction *openUrlAction = fileMenu->addAction(tr("Open &Location..."));

    fileMenu->addSeparator();  
    QMenu *aspectMenu = fileMenu->addMenu(tr("&Aspect ratio"));
    QActionGroup *aspectGroup = new QActionGroup(aspectMenu);
    connect(aspectGroup, SIGNAL(triggered(QAction *)), this, SLOT(aspectChanged(QAction *)));
    aspectGroup->setExclusive(true);
    QAction *aspectActionAuto = aspectMenu->addAction("Auto");
    aspectActionAuto->setCheckable(true);
    aspectActionAuto->setChecked(true);
    aspectGroup->addAction(aspectActionAuto);
    QAction *aspectActionScale = aspectMenu->addAction("Scale");
    aspectActionScale->setCheckable(true);
    aspectGroup->addAction(aspectActionScale);
    QAction *aspectAction16_9 = aspectMenu->addAction("16/9");
    aspectAction16_9->setCheckable(true);
    aspectGroup->addAction(aspectAction16_9);
    QAction *aspectAction4_3 = aspectMenu->addAction("4/3");
    aspectAction4_3->setCheckable(true);
    aspectGroup->addAction(aspectAction4_3);

    QMenu *scaleMenu = fileMenu->addMenu(tr("&Scale mode"));
    QActionGroup *scaleGroup = new QActionGroup(scaleMenu);
    connect(scaleGroup, SIGNAL(triggered(QAction *)), this, SLOT(scaleChanged(QAction *)));
    scaleGroup->setExclusive(true);
    QAction *scaleActionFit = scaleMenu->addAction("Fit in view");
    scaleActionFit->setCheckable(true);
    scaleActionFit->setChecked(true);
    scaleGroup->addAction(scaleActionFit);
    QAction *scaleActionCrop = scaleMenu->addAction("Scale and crop");
    scaleActionCrop->setCheckable(true);
    scaleGroup->addAction(scaleActionCrop);
    
    fileMenu->addSeparator();    
    QAction *settingsAction = fileMenu->addAction(tr("&Settings..."));
    
    // Setup signal connections:
    connect(rewindButton, SIGNAL(clicked()), this, SLOT(rewind()));
    //connect(openButton, SIGNAL(clicked()), this, SLOT(openFile()));
    openButton->setMenu(fileMenu);
    
    connect(playButton, SIGNAL(clicked()), this, SLOT(playPause()));
    connect(forwardButton, SIGNAL(clicked()), this, SLOT(forward()));
    connect(volume, SIGNAL(valueChanged(int)), this, SLOT(setVolume(int)));
    //connect(openButton, SIGNAL(clicked()), this, SLOT(openFile()));
    connect(settingsAction, SIGNAL(triggered(bool)), this, SLOT(showSettingsDialog()));
    connect(openUrlAction, SIGNAL(triggered(bool)), this, SLOT(openUrl()));
    connect(openFileAction, SIGNAL(triggered(bool)), this, SLOT(openFile()));
    
    connect(m_videoWidget, SIGNAL(customContextMenuRequested(const QPoint &)), SLOT(showContextMenu(const QPoint &)));
    connect(this, SIGNAL(customContextMenuRequested(const QPoint &)), SLOT(showContextMenu(const QPoint &)));
    connect(&m_MediaObject, SIGNAL(metaDataChanged()), this, SLOT(updateInfo()));
    connect(&m_MediaObject, SIGNAL(totalTimeChanged(qint64)), this, SLOT(updateTime()));
    connect(&m_MediaObject, SIGNAL(tick(qint64)), this, SLOT(updateTime()));
    connect(&m_MediaObject, SIGNAL(finished()), this, SLOT(finished()));
    connect(&m_MediaObject, SIGNAL(stateChanged(Phonon::State, Phonon::State)), this, SLOT(stateChanged(Phonon::State, Phonon::State)));
    connect(&m_MediaObject, SIGNAL(bufferStatus(int)), this, SLOT(bufferStatus(int)));

    rewindButton->setEnabled(false);
    playButton->setEnabled(false);
    setAcceptDrops(true);

    m_MediaObject.setTickInterval(250);

    m_audioOutputPath = Phonon::createPath(&m_MediaObject, &m_AudioOutput);
    Phonon::createPath(&m_MediaObject, m_videoWidget);

    if (!filePath.isEmpty())
        setFile(filePath);
    resize(minimumSizeHint());
}

void MediaPlayer::stateChanged(Phonon::State newstate, Phonon::State oldstate)
{
    Q_UNUSED(oldstate);

    if (oldstate == Phonon::LoadingState) {
        m_videoWindow.setVisible(m_MediaObject.hasVideo());
        info->setVisible(!m_MediaObject.hasVideo());        
        QRect videoHintRect = QRect(QPoint(0, 0), m_videoWindow.sizeHint());
        QRect newVideoRect = QApplication::desktop()->screenGeometry().intersected(videoHintRect);
        if (m_MediaObject.hasVideo()){        
            // Flush event que so that sizeHint takes the
            // recently shown/hidden m_videoWindow into account:
            qApp->processEvents();
            resize(sizeHint());
        } else
            resize(minimumSize());
    }

    switch (newstate) {
        case Phonon::ErrorState:
            QMessageBox::warning(this, "Phonon Mediaplayer", m_MediaObject.errorString(), QMessageBox::Close);
            if (m_MediaObject.errorType() == Phonon::FatalError) {
                playButton->setEnabled(false);
                rewindButton->setEnabled(false);
            } else {
                m_MediaObject.pause();
            }
            break;
        case Phonon::PausedState:
        case Phonon::StoppedState:
            playButton->setIcon(playIcon);
            if (m_MediaObject.currentSource().type() != Phonon::MediaSource::Invalid){
                playButton->setEnabled(true);
                rewindButton->setEnabled(true);
            } else {
                playButton->setEnabled(false);
                rewindButton->setEnabled(false);
            }
            break;
        case Phonon::PlayingState:
            playButton->setEnabled(true);
            playButton->setIcon(pauseIcon);
            if (m_MediaObject.hasVideo())
                m_videoWindow.show();
            // Fall through
        case Phonon::BufferingState:
            rewindButton->setEnabled(true);
            break;
        case Phonon::LoadingState:
            rewindButton->setEnabled(false);
            break;
    }

}

void MediaPlayer::initSettingsDialog()
{
    settingsDialog = new QDialog(this);
    ui = new Ui_settings();
    ui->setupUi(settingsDialog);

    connect(ui->brightnessSlider, SIGNAL(valueChanged(int)), this, SLOT(setBrightness(int)));
    connect(ui->hueSlider, SIGNAL(valueChanged(int)), this, SLOT(setHue(int)));
    connect(ui->saturationSlider, SIGNAL(valueChanged(int)), this, SLOT(setSaturation(int)));
    connect(ui->contrastSlider , SIGNAL(valueChanged(int)), this, SLOT(setContrast(int)));
    connect(ui->aspectCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(setAspect(int)));
    connect(ui->scalemodeCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(setScale(int)));

    ui->brightnessSlider->setValue(int(m_videoWidget->brightness() * SLIDER_RANGE));
    ui->hueSlider->setValue(int(m_videoWidget->hue() * SLIDER_RANGE));
    ui->saturationSlider->setValue(int(m_videoWidget->saturation() * SLIDER_RANGE));
    ui->contrastSlider->setValue(int(m_videoWidget->contrast() * SLIDER_RANGE));
    ui->aspectCombo->setCurrentIndex(m_videoWidget->aspectRatio());
    ui->scalemodeCombo->setCurrentIndex(m_videoWidget->scaleMode());
    connect(ui->effectButton, SIGNAL(clicked()), this, SLOT(configureEffect()));

#ifdef Q_WS_X11
    //Cross fading is not currently implemented in the GStreamer backend
    ui->crossFadeSlider->setVisible(false);
    ui->crossFadeLabel->setVisible(false);
    ui->crossFadeLabel1->setVisible(false);
    ui->crossFadeLabel2->setVisible(false);
    ui->crossFadeLabel3->setVisible(false);
#endif
    ui->crossFadeSlider->setValue((int)(2 * m_MediaObject.transitionTime() / 1000.0f));
    
    // Insert audio devices:
    QList<Phonon::AudioOutputDevice> devices = Phonon::BackendCapabilities::availableAudioOutputDevices();
    for (int i=0; i<devices.size(); i++){
        QString itemText = devices[i].name();
        if (!devices[i].description().isEmpty()) {
            itemText += QString::fromLatin1(" (%1)").arg(devices[i].description());
        }
        ui->deviceCombo->addItem(itemText);
        if (devices[i] == m_AudioOutput.outputDevice())
            ui->deviceCombo->setCurrentIndex(i);
    }

    // Insert audio effects:
    ui->audioEffectsCombo->addItem("<no effect>");
    QList<Phonon::Effect *> currEffects = m_audioOutputPath.effects();
    Phonon::Effect *currEffect = currEffects.size() ? currEffects[0] : 0;
    QList<Phonon::EffectDescription> availableEffects = Phonon::BackendCapabilities::availableAudioEffects();
    for (int i=0; i<availableEffects.size(); i++){
        ui->audioEffectsCombo->addItem(availableEffects[i].name());
        if (currEffect && availableEffects[i] == currEffect->description())
            ui->audioEffectsCombo->setCurrentIndex(i+1);
    }
    connect(ui->audioEffectsCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(effectChanged()));

}

void MediaPlayer::effectChanged()
{
    int currentIndex = ui->audioEffectsCombo->currentIndex();
    if (ui->audioEffectsCombo->currentIndex()) {
        QList<Phonon::EffectDescription> availableEffects = Phonon::BackendCapabilities::availableAudioEffects();
        Phonon::EffectDescription chosenEffect = availableEffects[ui->audioEffectsCombo->currentIndex() - 1];

        QList<Phonon::Effect *> currEffects = m_audioOutputPath.effects();
        Phonon::Effect *currentEffect = currEffects.size() ? currEffects[0] : 0;

        // Deleting the running effect will stop playback, it is deleted when removed from path
        if (nextEffect && !(currentEffect && (currentEffect->description().name() == nextEffect->description().name())))
            delete nextEffect;

        nextEffect = new Phonon::Effect(chosenEffect);
    }
    ui->effectButton->setEnabled(currentIndex);
}

void MediaPlayer::showSettingsDialog()
{
    if (!settingsDialog)
        initSettingsDialog();

    float oldBrightness = m_videoWidget->brightness();
    float oldHue = m_videoWidget->hue();
    float oldSaturation = m_videoWidget->saturation();
    float oldContrast = m_videoWidget->contrast();
    Phonon::VideoWidget::AspectRatio oldAspect = m_videoWidget->aspectRatio();
    Phonon::VideoWidget::ScaleMode oldScale = m_videoWidget->scaleMode();
    int currentEffect = ui->audioEffectsCombo->currentIndex();
    settingsDialog->exec();
    
    if (settingsDialog->result() == QDialog::Accepted){
        m_MediaObject.setTransitionTime((int)(1000 * float(ui->crossFadeSlider->value()) / 2.0f));
        QList<Phonon::AudioOutputDevice> devices = Phonon::BackendCapabilities::availableAudioOutputDevices();
        m_AudioOutput.setOutputDevice(devices[ui->deviceCombo->currentIndex()]);
        QList<Phonon::Effect *> currEffects = m_audioOutputPath.effects();
        QList<Phonon::EffectDescription> availableEffects = Phonon::BackendCapabilities::availableAudioEffects();

        if (ui->audioEffectsCombo->currentIndex() > 0){
            Phonon::Effect *currentEffect = currEffects.size() ? currEffects[0] : 0;    
            if (!currentEffect || currentEffect->description() != nextEffect->description()){
                foreach(Phonon::Effect *effect, currEffects) {
                    m_audioOutputPath.removeEffect(effect);
                    delete effect;
                }
                m_audioOutputPath.insertEffect(nextEffect);
            }
        } else {
            foreach(Phonon::Effect *effect, currEffects) {
                m_audioOutputPath.removeEffect(effect);
                delete effect;
                nextEffect = 0;
            }
        }
    } else {
        // Restore previous settings
        m_videoWidget->setBrightness(oldBrightness);
        m_videoWidget->setSaturation(oldSaturation);
        m_videoWidget->setHue(oldHue);
        m_videoWidget->setContrast(oldContrast);
        m_videoWidget->setAspectRatio(oldAspect);
        m_videoWidget->setScaleMode(oldScale);
        ui->audioEffectsCombo->setCurrentIndex(currentEffect);
    }
}

void MediaPlayer::initVideoWindow()
{
    QVBoxLayout *videoLayout = new QVBoxLayout();
    videoLayout->addWidget(m_videoWidget);
    videoLayout->setContentsMargins(0, 0, 0, 0);
    m_videoWindow.setLayout(videoLayout);
    m_videoWindow.setMinimumSize(100, 100);
}

void MediaPlayer::updateEffect()
{
    for (int k=0 ; k< nextEffect->parameters().size() ; ++k) {
        Phonon::EffectParameter param = nextEffect->parameters()[k];
        switch(param.type()) {
        case QVariant::Int: 
            {
                QSpinBox *spin = (QSpinBox*)propertyControllers.value(param.name());
                nextEffect->setParameterValue(param, spin->value());
            }            
            break;
        case QVariant::Double:
            if (param.minimumValue() == -1.0 && param.maximumValue() == 1.0) {
                QSlider *slider = (QSlider*)propertyControllers.value(param.name());
                nextEffect->setParameterValue(param, (double)(slider->value() / (double)SLIDER_RANGE));
            } else {                        
                QDoubleSpinBox *spin = (QDoubleSpinBox*)propertyControllers.value(param.name());
                nextEffect->setParameterValue(param, spin->value());
            }
            break;
        case QVariant::Bool: 
            {
                QCheckBox *cb = (QCheckBox*)propertyControllers.value(param.name());
                nextEffect->setParameterValue(param, cb->isChecked());
            }            
            break;
        case QVariant::String: 
            {
                QLineEdit *edit = (QLineEdit*)propertyControllers.value(param.name());
                nextEffect->setParameterValue(param, edit->text());
            }            
            break;
        default:
            break;
        }
    }    
}

void MediaPlayer::configureEffect()
{
    QList<Phonon::Effect *> currEffects = m_audioOutputPath.effects();
    QList<Phonon::EffectDescription> availableEffects = Phonon::BackendCapabilities::availableAudioEffects();
    if (ui->audioEffectsCombo->currentIndex() > 0){
        QList<Phonon::EffectDescription> availableEffects = Phonon::BackendCapabilities::availableAudioEffects();
        Phonon::EffectDescription chosenEffect = availableEffects[ui->audioEffectsCombo->currentIndex() - 1];

        QDialog effectDialog;
        effectDialog.setWindowTitle(tr("Configure effect"));
        QVBoxLayout *topLayout = new QVBoxLayout(&effectDialog);

        QLabel *description = new QLabel("<b>Description:</b><br>" + chosenEffect.description(), &effectDialog);
        description->setWordWrap(true); 
        topLayout->addWidget(description);

        QScrollArea *scrollArea = new QScrollArea(&effectDialog);
        topLayout->addWidget(scrollArea);

        QWidget *scrollWidget = new QWidget(&effectDialog);
        QVBoxLayout *scrollLayout = new QVBoxLayout(scrollWidget);
        scrollWidget->setMinimumWidth(320);
        scrollArea->setWidget(scrollWidget);

        if (nextEffect) {
            for (int k=0 ; k< nextEffect->parameters().size() ; ++k) {
                Phonon::EffectParameter param = nextEffect->parameters()[k];
                QHBoxLayout *hlayout = new QHBoxLayout();
                QString labelName = param.name();
                labelName[0] = labelName[0].toUpper();
                hlayout->addWidget(new QLabel("<b>" + labelName + ":</b> "));
                if (param.type() == QVariant::Int) {
                    QSpinBox *spin = new QSpinBox(&effectDialog);
                    spin->setMinimum(param.minimumValue().toInt());
                    spin->setMaximum(param.maximumValue().toInt());
                    QVariant currentValue = nextEffect->parameterValue(param);
                    spin->setProperty("oldValue", currentValue.toInt());
                    spin->setValue(currentValue.toInt());
                    connect(spin, SIGNAL(valueChanged(int)), this, SLOT(updateEffect()));
                    hlayout->addWidget(spin);
                    propertyControllers.insert(param.name(), spin);
               } else if (param.type() == QVariant::Double) {
                    if (param.minimumValue() == -1.0 && param.maximumValue() == 1.0) {
                        //Special case values between -1 and 1.0 to use a slider for improved usability
                        QSlider *slider = new QSlider(Qt::Horizontal, &effectDialog);
                        slider->setMinimum(-SLIDER_RANGE);
                        slider->setMaximum(SLIDER_RANGE);
                        QVariant currentValue = nextEffect->parameterValue(param);
                        slider->setProperty("oldValue", currentValue.toDouble());
                        slider->setValue((int)(SLIDER_RANGE * currentValue.toDouble()));
                        slider->setTickPosition(QSlider::TicksBelow);
                        slider->setTickInterval(4);
                        hlayout->addWidget(slider);
                        connect(slider, SIGNAL(valueChanged(int)), this, SLOT(updateEffect()));
                        propertyControllers.insert(param.name(), slider);
                    } else {
                        QDoubleSpinBox *spin = new QDoubleSpinBox(&effectDialog);
                        spin->setSingleStep(0.1);                        
                        spin->setMinimum(param.minimumValue().toDouble());
                        spin->setMaximum(param.maximumValue().toDouble());
                        QVariant currentValue = nextEffect->parameterValue(param);
                        spin->setProperty("oldValue", currentValue);
                        spin->setValue(currentValue.toDouble());
                        connect(spin, SIGNAL(valueChanged(double)), this, SLOT(updateEffect()));
                        hlayout->addWidget(spin);
                        propertyControllers.insert(param.name(), spin);
                    }
                } else if (param.type() == QVariant::Bool) {
                    QCheckBox *cb = new QCheckBox(&effectDialog);
                    QVariant currentValue = nextEffect->parameterValue(param);
                    cb->setProperty("oldValue", currentValue);
                    cb->setChecked(currentValue.toBool());
                    connect(cb, SIGNAL(stateChanged(int)), this, SLOT(updateEffect()));
                    hlayout->addWidget(cb);
                    propertyControllers.insert(param.name(), cb);
                } else if (param.type() == QVariant::String) {
                    QLineEdit *edit = new QLineEdit(&effectDialog);
                    QVariant currentValue = nextEffect->parameterValue(param);
                    edit->setProperty("oldValue", currentValue.toString());
                    edit->setText(currentValue.toString());
                    connect(edit, SIGNAL(returnPressed()), this, SLOT(updateEffect()));
                    hlayout->addWidget(edit);
                    propertyControllers.insert(param.name(), edit);
                }
                scrollLayout->addLayout(hlayout);
            }
            QDialogButtonBox *bbox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal, &effectDialog);
            connect(bbox->button(QDialogButtonBox::Ok), SIGNAL(clicked()), &effectDialog, SLOT(accept()));
            connect(bbox->button(QDialogButtonBox::Cancel), SIGNAL(clicked()), &effectDialog, SLOT(reject()));
            topLayout->addWidget(bbox);

            scrollWidget->adjustSize();
            effectDialog.adjustSize();
            
            effectDialog.exec();
            if (effectDialog.result() != QDialog::Accepted){
                // Revert any changes
                for (int k=0 ; k< nextEffect->parameters().size() ; ++k) {
                    Phonon::EffectParameter param = nextEffect->parameters()[k];
                    switch(param.type()) {
                    case QVariant::Int: 
                        {
                            QSpinBox *spin = (QSpinBox*)propertyControllers.value(param.name());
                            nextEffect->setParameterValue(param, spin->property("oldValue").toInt());
                        }            
                        break;
                    case QVariant::Double:
                        if (param.minimumValue() == -1.0 && param.maximumValue() == 1.0) {
                            QSlider *slider = (QSlider*)propertyControllers.value(param.name());
                            nextEffect->setParameterValue(param, slider->property("oldValue").toDouble());
                        } else {                        
                            QDoubleSpinBox *spin = (QDoubleSpinBox*)propertyControllers.value(param.name());
                            nextEffect->setParameterValue(param, spin->property("oldValue").toDouble());
                        }
                        break;
                    case QVariant::Bool: 
                        {
                            QCheckBox *cb = (QCheckBox*)propertyControllers.value(param.name());
                            nextEffect->setParameterValue(param, cb->property("oldValue").toBool());
                        }            
                        break;
                    case QVariant::String: 
                        {
                            QLineEdit *edit = (QLineEdit*)propertyControllers.value(param.name());
                            nextEffect->setParameterValue(param, edit->property("oldValue").toString());
                        }            
                        break;
                    default:
                        break;
                    }
                }
            }
            propertyControllers.clear();
        }
    }
}

void MediaPlayer::pause()
{
    m_MediaObject.pause();
}

void MediaPlayer::handleDrop(QDropEvent *e)
{
    QList<QUrl> urls = e->mimeData()->urls();
    if (e->proposedAction() == Qt::MoveAction){
        // Just add to the que:
        for (int i=0; i<urls.size(); i++)
            m_MediaObject.enqueue(Phonon::MediaSource(urls[i].toLocalFile()));
    } else {
        // Create new que:
        m_MediaObject.clearQueue();
        if (urls.size() > 0) {
            QString fileName = urls[0].toLocalFile();
            QDir dir(fileName);
            if (dir.exists()) {
                dir.setFilter(QDir::Files);            
                QStringList entries = dir.entryList();
                if (entries.size() > 0) {
                    setFile(fileName + QDir::separator() +  entries[0]);
                    for (int i=1; i< entries.size(); ++i)
                        m_MediaObject.enqueue(fileName + QDir::separator() + entries[i]);
                }
            } else {
                setFile(fileName);
                for (int i=1; i<urls.size(); i++)
                    m_MediaObject.enqueue(Phonon::MediaSource(urls[i].toLocalFile()));
            }        
        }
    }
    forwardButton->setEnabled(m_MediaObject.queue().size() > 0);
    play();
}

void MediaPlayer::dropEvent(QDropEvent *e)
{
    if (e->mimeData()->hasUrls() && e->proposedAction() != Qt::LinkAction) {
        e->acceptProposedAction();
        handleDrop(e);
    } else {
        e->ignore(); 
    }
}

void MediaPlayer::dragEnterEvent(QDragEnterEvent *e)
{
    dragMoveEvent(e);
}

void MediaPlayer::dragMoveEvent(QDragMoveEvent *e)
{
    if (e->mimeData()->hasUrls()) {
        if (e->proposedAction() == Qt::CopyAction || e->proposedAction() == Qt::MoveAction){
            e->acceptProposedAction();
        }
    }
}

void MediaPlayer::playPause()
{
    if (m_MediaObject.state() == Phonon::PlayingState)
        m_MediaObject.pause();
    else {
        if (m_MediaObject.currentTime() == m_MediaObject.totalTime())
            m_MediaObject.seek(0);
        m_MediaObject.play();
    }
}

void MediaPlayer::play()
{
    m_MediaObject.play();
}

void MediaPlayer::setVolume(int volume)
{
    Q_UNUSED(volume);
    m_AudioOutput.setVolume(volume/100.0f);
    if (volumeLabel) {
        if (volume == 0)
            volumeLabel->setPixmap(mutedIcon);
        else
            volumeLabel->setPixmap(volumeIcon);    
    }
}

void MediaPlayer::setFile(const QString &fileName)
{
    setWindowTitle(fileName.right(fileName.length() - fileName.lastIndexOf('/') - 1));
    m_MediaObject.setCurrentSource(Phonon::MediaSource(fileName));
    m_MediaObject.play();
}

void MediaPlayer::openFile()
{
    QStringList fileNames = QFileDialog::getOpenFileNames(this);
    m_MediaObject.clearQueue();
    if (fileNames.size() > 0) {
        QString fileName = fileNames[0];
        setFile(fileName);
        for (int i=1; i<fileNames.size(); i++)
            m_MediaObject.enqueue(Phonon::MediaSource(fileNames[i]));
    }
    forwardButton->setEnabled(m_MediaObject.queue().size() > 0);
}

void MediaPlayer::bufferStatus(int percent)
{
    if (percent == 0 || percent == 100)
        progressLabel->setText("");
    else {
        QString str("(");
        str += QString::number(percent);
        str += "%)";
        progressLabel->setText(str);
    }
}

void MediaPlayer::setSaturation(int val)
{
    m_videoWidget->setSaturation(val / qreal(SLIDER_RANGE));
}

void MediaPlayer::setHue(int val)
{
    m_videoWidget->setHue(val / qreal(SLIDER_RANGE));
}

void MediaPlayer::setAspect(int val)
{
    m_videoWidget->setAspectRatio(Phonon::VideoWidget::AspectRatio(val));
}

void MediaPlayer::setScale(int val)
{
    m_videoWidget->setScaleMode(Phonon::VideoWidget::ScaleMode(val));
}

void MediaPlayer::setBrightness(int val)
{
    m_videoWidget->setBrightness(val / qreal(SLIDER_RANGE));
}

void MediaPlayer::setContrast(int val)
{
    m_videoWidget->setContrast(val / qreal(SLIDER_RANGE));
}

void MediaPlayer::updateInfo()
{
    int maxLength = 30;
    QString font = "<font color=#ffeeaa>";
    QString fontmono = "<font family=\"monospace,courier new\" color=#ffeeaa>";

    QMap <QString, QString> metaData = m_MediaObject.metaData();
    QString trackArtist = metaData.value("ARTIST");
    if (trackArtist.length() > maxLength)
        trackArtist = trackArtist.left(maxLength) + "...";
    
    QString trackTitle = metaData.value("TITLE");
    int trackBitrate = metaData.value("BITRATE").toInt();

    QString fileName;
    if (m_MediaObject.currentSource().type() == Phonon::MediaSource::Url) {
        fileName = m_MediaObject.currentSource().url().toString();
    } else {
        fileName = m_MediaObject.currentSource().fileName();
        fileName = fileName.right(fileName.length() - fileName.lastIndexOf('/') - 1);
        if (fileName.length() > maxLength)
            fileName = fileName.left(maxLength) + "...";
    }
    
    QString title;    
    if (!trackTitle.isEmpty()) {
        if (trackTitle.length() > maxLength)
            trackTitle = trackTitle.left(maxLength) + "...";
        title = "Title: " + font + trackTitle + "<br></font>";
    } else if (!fileName.isEmpty()) {
        if (fileName.length() > maxLength)
            fileName = fileName.left(maxLength) + "...";
        title = font + fileName + "</font>";
        if (m_MediaObject.currentSource().type() == Phonon::MediaSource::Url) {
            title.prepend("Url: ");
        } else {
            title.prepend("File: ");
        }
    }
        
    QString artist;
    if (!trackArtist.isEmpty())
        artist = "Artist:  " + font + trackArtist + "</font>";

    QString bitrate;
    if (trackBitrate != 0)
        bitrate = "<br>Bitrate:  " + font + QString::number(trackBitrate/1000) + "kbit</font>";

    info->setText(title + artist + bitrate);
}

void MediaPlayer::updateTime()
{
    long len = m_MediaObject.totalTime();
    long pos = m_MediaObject.currentTime();
    QString timeString;    
    if (pos || len)
    {
        int sec = pos/1000;
        int min = sec/60;
        int hour = min/60;
        int msec = pos;

        QTime playTime(hour%60, min%60, sec%60, msec%1000);
        sec = len / 1000;
        min = sec / 60;
        hour = min / 60;
        msec = len;

        QTime stopTime(hour%60, min%60, sec%60, msec%1000);
        QString timeFormat = "m:ss";
        if (hour > 0)
            timeFormat = "h:mm:ss";        
        timeString = playTime.toString(timeFormat);
        if (len)
            timeString += " / " + stopTime.toString(timeFormat);
    }
    timeLabel->setText(timeString);
}

void MediaPlayer::rewind()
{
    m_MediaObject.setTickInterval(50);
    m_MediaObject.seek(0);
}

void MediaPlayer::forward()
{
    QList<Phonon::MediaSource> queue = m_MediaObject.queue();
    if (queue.size() > 0) {
        m_MediaObject.setCurrentSource(queue[0]);
        forwardButton->setEnabled(queue.size() > 1);
        m_MediaObject.play();
    }
}

void MediaPlayer::openUrl()
{
    QSettings settings;
    settings.beginGroup(QLatin1String("BrowserMainWindow"));
    QString sourceURL = settings.value("location").toString();
    sourceURL = QInputDialog::getText(this, tr("Open Location"), tr("Please enter a valid address here:"), QLineEdit::Normal, sourceURL);
    if (!sourceURL.isEmpty()) {
          setWindowTitle(sourceURL.right(sourceURL.length() - sourceURL.lastIndexOf('/') - 1));
          m_MediaObject.setCurrentSource(Phonon::MediaSource(QUrl::fromEncoded(sourceURL.toUtf8())));
          m_MediaObject.play();
        settings.setValue("location", sourceURL);
    }
}

void MediaPlayer::finished()
{
}

void MediaPlayer::showContextMenu(const QPoint &p)
{
    fileMenu->popup(m_videoWidget->isFullScreen() ? p : mapToGlobal(p));
}

void MediaPlayer::scaleChanged(QAction *act)
{
    if (act->text() == "Scale and crop")
        m_videoWidget->setScaleMode(Phonon::VideoWidget::ScaleAndCrop);
    else 
        m_videoWidget->setScaleMode(Phonon::VideoWidget::FitInView);    
}

void MediaPlayer::aspectChanged(QAction *act)
{
    if (act->text() == "16/9")
        m_videoWidget->setAspectRatio(Phonon::VideoWidget::AspectRatio16_9);
    else if (act->text() == "Scale")
        m_videoWidget->setAspectRatio(Phonon::VideoWidget::AspectRatioWidget);
    else if (act->text() == "4/3")
        m_videoWidget->setAspectRatio(Phonon::VideoWidget::AspectRatio4_3);
    else
        m_videoWidget->setAspectRatio(Phonon::VideoWidget::AspectRatioAuto);    
}


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