interface_widgets.cpp

VLC Player Source Code

}

/**
 * event handling
 * events: show, hide, start timer for hidding
 */
void FullscreenControllerWidget::customEvent( QEvent *event )
{
    bool b_fs;

    switch( event->type() )
    {
        case FullscreenControlToggle_Type:
            vlc_mutex_lock( &lock );
            b_fs = b_fullscreen;
            vlc_mutex_unlock( &lock );
            if( b_fs )
#ifdef WIN32TRICK
                if( b_fscHidden )
#else
                if( isHidden() )
#endif
                {
                    p_hideTimer->stop();
                    showFSC();
                }
                else
                    hideFSC();
            break;
        case FullscreenControlShow_Type:
            vlc_mutex_lock( &lock );
            b_fs = b_fullscreen;
            vlc_mutex_unlock( &lock );

            if( b_fs )  // FIXME I am not sure about that one
                showFSC();
            break;
        case FullscreenControlHide_Type:
            hideFSC();
            break;
        case FullscreenControlPlanHide_Type:
            if( !b_mouse_over ) // Only if the mouse is not over FSC
                planHideFSC();
            break;
    }
}

/**
 * On mouse move
 * moving with FSC
 */
void FullscreenControllerWidget::mouseMoveEvent( QMouseEvent *event )
{
    if ( event->buttons() == Qt::LeftButton )
    {
        int i_moveX = event->globalX() - i_mouse_last_x;
        int i_moveY = event->globalY() - i_mouse_last_y;

        move( x() + i_moveX, y() + i_moveY );

        i_mouse_last_x = event->globalX();
        i_mouse_last_y = event->globalY();
    }
}

/**
 * On mouse press
 * store position of cursor
 */
void FullscreenControllerWidget::mousePressEvent( QMouseEvent *event )
{
    i_mouse_last_x = event->globalX();
    i_mouse_last_y = event->globalY();
}

/**
 * On mouse go above FSC
 */
void FullscreenControllerWidget::enterEvent( QEvent *event )
{
    b_mouse_over = true;

    p_hideTimer->stop();
#if HAVE_TRANSPARENCY
    p_slowHideTimer->stop();
#endif
}

/**
 * On mouse go out from FSC
 */
void FullscreenControllerWidget::leaveEvent( QEvent *event )
{
    planHideFSC();

    b_mouse_over = false;
}

/**
 * When you get pressed key, send it to video output
 * FIXME: clearing focus by clearFocus() to not getting
 * key press events didnt work
 */
void FullscreenControllerWidget::keyPressEvent( QKeyEvent *event )
{
    int i_vlck = qtEventToVLCKey( event );
    if( i_vlck > 0 )
    {
        var_SetInteger( p_intf->p_libvlc, "key-pressed", i_vlck );
        event->accept();
    }
    else
        event->ignore();
}

/* */
static int FullscreenControllerWidgetFullscreenChanged( vlc_object_t *vlc_object, const char *variable,
                                                        vlc_value_t old_val, vlc_value_t new_val,
                                                        void *data )
{
    vout_thread_t *p_vout = (vout_thread_t *) vlc_object;
    FullscreenControllerWidget *p_fs = (FullscreenControllerWidget *)data;

    p_fs->fullscreenChanged( p_vout, new_val.b_bool, var_GetInteger( p_vout, "mouse-hide-timeout" ) );

    return VLC_SUCCESS;
}
/* */
static int FullscreenControllerWidgetMouseMoved( vlc_object_t *vlc_object, const char *variable,
                                                 vlc_value_t old_val, vlc_value_t new_val,
                                                 void *data )
{
    FullscreenControllerWidget *p_fs = (FullscreenControllerWidget *)data;

    /* Show event */
    IMEvent *eShow = new IMEvent( FullscreenControlShow_Type, 0 );
    QApplication::postEvent( p_fs, static_cast<QEvent *>(eShow) );

    /* Plan hide event */
    IMEvent *eHide = new IMEvent( FullscreenControlPlanHide_Type, 0 );
    QApplication::postEvent( p_fs, static_cast<QEvent *>(eHide) );

    return VLC_SUCCESS;
}


/**
 * It is called when video start
 */
void FullscreenControllerWidget::attachVout( vout_thread_t *p_nvout )
{
    assert( p_nvout && !p_vout );

    p_vout = p_nvout;

    vlc_mutex_lock( &lock );
    var_AddCallback( p_vout, "fullscreen", FullscreenControllerWidgetFullscreenChanged, this ); /* I miss a add and fire */
    fullscreenChanged( p_vout, var_GetBool( p_vout, "fullscreen" ), var_GetInteger( p_vout, "mouse-hide-timeout" ) );
    vlc_mutex_unlock( &lock );
}
/**
 * It is called after turn off video.
 */
void FullscreenControllerWidget::detachVout()
{
    if( p_vout )
    {
        var_DelCallback( p_vout, "fullscreen", FullscreenControllerWidgetFullscreenChanged, this );
        vlc_mutex_lock( &lock );
        fullscreenChanged( p_vout, false, 0 );
        vlc_mutex_unlock( &lock );
        p_vout = NULL;
    }
}

/**
 * Register and unregister callback for mouse moving
 */
void FullscreenControllerWidget::fullscreenChanged( vout_thread_t *p_vout, bool b_fs, int i_timeout )
{
    vlc_mutex_lock( &lock );
    if( b_fs && !b_fullscreen )
    {
        b_fullscreen = true;
        i_hide_timeout = i_timeout;
        var_AddCallback( p_vout, "mouse-moved", FullscreenControllerWidgetMouseMoved, this );
    }
    else if( !b_fs && b_fullscreen )
    {
        b_fullscreen = false;
        i_hide_timeout = i_timeout;
        var_DelCallback( p_vout, "mouse-moved", FullscreenControllerWidgetMouseMoved, this );

        /* Force fs hidding */
        IMEvent *eHide = new IMEvent( FullscreenControlHide_Type, 0 );
        QApplication::postEvent( this, static_cast<QEvent *>(eHide) );
    }
    vlc_mutex_unlock( &lock );
}

/**********************************************************************
 * Speed control widget
 **********************************************************************/
SpeedControlWidget::SpeedControlWidget( intf_thread_t *_p_i ) :
                             QFrame( NULL ), p_intf( _p_i )
{
    QSizePolicy sizePolicy( QSizePolicy::Maximum, QSizePolicy::Fixed );
    sizePolicy.setHorizontalStretch( 0 );
    sizePolicy.setVerticalStretch( 0 );

    speedSlider = new QSlider;
    speedSlider->setSizePolicy( sizePolicy );
    speedSlider->setMaximumSize( QSize( 80, 200 ) );
    speedSlider->setOrientation( Qt::Vertical );
    speedSlider->setTickPosition( QSlider::TicksRight );

    speedSlider->setRange( -24, 24 );
    speedSlider->setSingleStep( 1 );
    speedSlider->setPageStep( 1 );
    speedSlider->setTickInterval( 12 );

    CONNECT( speedSlider, valueChanged( int ), this, updateRate( int ) );

    QToolButton *normalSpeedButton = new QToolButton( this );
    normalSpeedButton->setMaximumSize( QSize( 26, 20 ) );
    normalSpeedButton->setAutoRaise( true );
    normalSpeedButton->setText( "1x" );
    normalSpeedButton->setToolTip( qtr( "Revert to normal play speed" ) );

    CONNECT( normalSpeedButton, clicked(), this, resetRate() );

    QVBoxLayout *speedControlLayout = new QVBoxLayout;
    speedControlLayout->setLayoutMargins( 4, 4, 4, 4, 4 );
    speedControlLayout->setSpacing( 4 );
    speedControlLayout->addWidget( speedSlider );
    speedControlLayout->addWidget( normalSpeedButton );
    setLayout( speedControlLayout );
}

SpeedControlWidget::~SpeedControlWidget()
{}

void SpeedControlWidget::setEnable( bool b_enable )
{
    speedSlider->setEnabled( b_enable );
}

void SpeedControlWidget::updateControls( int rate )
{
    if( speedSlider->isSliderDown() )
    {
        //We don't want to change anything if the user is using the slider
        return;
    }

    double value = 12 * log( (double)INPUT_RATE_DEFAULT / rate ) / log( 2 );
    int sliderValue = (int) ( ( value > 0 ) ? value + .5 : value - .5 );

    if( sliderValue < speedSlider->minimum() )
    {
        sliderValue = speedSlider->minimum();
    }
    else if( sliderValue > speedSlider->maximum() )
    {
        sliderValue = speedSlider->maximum();
    }

    //Block signals to avoid feedback loop
    speedSlider->blockSignals( true );
    speedSlider->setValue( sliderValue );
    speedSlider->blockSignals( false );
}

void SpeedControlWidget::updateRate( int sliderValue )
{
    double speed = pow( 2, (double)sliderValue / 12 );
    int rate = INPUT_RATE_DEFAULT / speed;

    THEMIM->getIM()->setRate(rate);
}

void SpeedControlWidget::resetRate()
{
    THEMIM->getIM()->setRate(INPUT_RATE_DEFAULT);
}



static int downloadCoverCallback( vlc_object_t *p_this,
                                  char const *psz_var,
                                  vlc_value_t oldvar, vlc_value_t newvar,
                                  void *data )
{
    if( !strcmp( psz_var, "item-change" ) )
    {
        CoverArtLabel *art = static_cast< CoverArtLabel* >( data );
        if( art )
            art->requestUpdate();
    }
    return VLC_SUCCESS;
}

CoverArtLabel::CoverArtLabel( vlc_object_t *_p_this, input_item_t *_p_input )
        : p_this( _p_this), p_input( _p_input ), prevArt()
{
    setContextMenuPolicy( Qt::ActionsContextMenu );
    CONNECT( this, updateRequested(), this, doUpdate() );

    playlist_t *p_playlist = pl_Yield( p_this );
    var_AddCallback( p_playlist, "item-change",
                     downloadCoverCallback, this );
    pl_Release( p_this );

    setMinimumHeight( 128 );
    setMinimumWidth( 128 );
    setMaximumHeight( 128 );
    setMaximumWidth( 128 );
    setScaledContents( true );

    doUpdate();
}

void CoverArtLabel::downloadCover()
{
    if( p_input )
    {
        playlist_t *p_playlist = pl_Yield( p_this );
        playlist_AskForArtEnqueue( p_playlist, p_input );
        pl_Release( p_this );
    }
}

void CoverArtLabel::doUpdate()
{
    if( !p_input )
    {
        setPixmap( QPixmap( ":/noart.png" ) );
        QList< QAction* > artActions = actions();
        if( !artActions.isEmpty() )
            foreach( QAction *act, artActions )
                removeAction( act );
        prevArt = "";
    }
    else
    {
        char *psz_meta = input_item_GetArtURL( p_input );
        if( psz_meta && !strncmp( psz_meta, "file://", 7 ) )
        {
            QString artUrl = qfu( psz_meta ).replace( "file://", "" );
            if( artUrl != prevArt )
            {
                QPixmap pix;
                if( pix.load( artUrl ) )
                    setPixmap( pix );
                else
                {
                    msg_Dbg( p_this, "Qt could not load image '%s'",
                             qtu( artUrl ) );
                    setPixmap( QPixmap( ":/noart.png" ) );
                }
            }
            QList< QAction* > artActions = actions();
            if( !artActions.isEmpty() )
            {
                foreach( QAction *act, artActions )
                    removeAction( act );
            }
            prevArt = artUrl;
        }
        else
        {
            if( prevArt != "" )
                setPixmap( QPixmap( ":/noart.png" ) );
            prevArt = "";
            QList< QAction* > artActions = actions();
            if( artActions.isEmpty() )
            {
                QAction *action = new QAction( qtr( "Download cover art" ),
                                               this );
                addAction( action );
                CONNECT( action, triggered(),
                         this, downloadCover() );
            }
        }
        free( psz_meta );
    }
}