playlistwindow.cpp

来自「Amarok是一款在LINUX或其他类UNIX操作系统中运行的音频播放器软件。 」· C++ 代码 · 共 1,244 行 · 第 1/4 页

    //BEGIN Actions menu
    KPopupMenu *actionsMenu = new KPopupMenu( m_menubar );
    actionCollection()->action("playlist_playmedia")->plug( actionsMenu );
    actionCollection()->action("lastfm_play")->plug( actionsMenu );
    actionCollection()->action("play_audiocd")->plug( actionsMenu );
    actionsMenu->insertSeparator();
    actionCollection()->action("prev")->plug( actionsMenu );
    actionCollection()->action("play_pause")->plug( actionsMenu );
    actionCollection()->action("stop")->plug( actionsMenu );
    actionCollection()->action("next")->plug( actionsMenu );
    actionsMenu->insertSeparator();
    actionCollection()->action(KStdAction::name(KStdAction::Quit))->plug( actionsMenu );

    connect( actionsMenu, SIGNAL( aboutToShow() ), SLOT( actionsMenuAboutToShow() ) );
    //END Actions menu

    //BEGIN Playlist menu
    KPopupMenu *playlistMenu = new KPopupMenu( m_menubar );
    actionCollection()->action("playlist_add")->plug( playlistMenu );
    actionCollection()->action("stream_add")->plug( playlistMenu );
    actionCollection()->action("lastfm_add")->plug( playlistMenu );
    actionCollection()->action("playlist_save")->plug( playlistMenu );
    actionCollection()->action("playlist_burn")->plug( playlistMenu );
    playlistMenu->insertSeparator();
    actionCollection()->action("playlist_undo")->plug( playlistMenu );
    actionCollection()->action("playlist_redo")->plug( playlistMenu );
    playlistMenu->insertSeparator();
    actionCollection()->action("playlist_clear")->plug( playlistMenu );
    actionCollection()->action("playlist_shuffle")->plug( playlistMenu );
    //this one has no real context with regard to the menu
    //actionCollection()->action("playlist_copy")->plug( playlistMenu );
    playlistMenu->insertSeparator();
    actionCollection()->action("queue_selected")->plug( playlistMenu );
    actionCollection()->action("playlist_remove_duplicates")->plug( playlistMenu );
    actionCollection()->action("playlist_select_all")->plug( playlistMenu );
    //END Playlist menu

    //BEGIN Mode menu
    KPopupMenu *modeMenu = new KPopupMenu( m_menubar );
    actionCollection()->action("repeat")->plug( modeMenu );
    KSelectAction *random = static_cast<KSelectAction*>( actionCollection()->action("random_mode") );
    random->plug( modeMenu );
    random->popupMenu()->insertSeparator();
    actionCollection()->action("favor_tracks")->plug( random->popupMenu() );
    //END Mode menu

    //BEGIN Tools menu
    m_toolsMenu = new KPopupMenu( m_menubar );
    m_toolsMenu->insertItem( SmallIconSet( Amarok::icon( "covermanager" ) ), i18n("&Cover Manager"), Amarok::Menu::ID_SHOW_COVER_MANAGER );
    actionCollection()->action("queue_manager")->plug( m_toolsMenu );
    m_toolsMenu->insertItem( SmallIconSet( Amarok::icon( "visualizations" ) ), i18n("&Visualizations"), Amarok::Menu::ID_SHOW_VIS_SELECTOR );
    m_toolsMenu->insertItem( SmallIconSet( Amarok::icon( "equalizer") ), i18n("&Equalizer"), kapp, SLOT( slotConfigEqualizer() ), 0, Amarok::Menu::ID_CONFIGURE_EQUALIZER );
    actionCollection()->action("script_manager")->plug( m_toolsMenu );
    actionCollection()->action("statistics")->plug( m_toolsMenu );
    m_toolsMenu->insertSeparator();
    actionCollection()->action("update_collection")->plug( m_toolsMenu );
    m_toolsMenu->insertItem( SmallIconSet( Amarok::icon( "rescan" ) ), i18n("&Rescan Collection"), Amarok::Menu::ID_RESCAN_COLLECTION );

    #if defined HAVE_LIBVISUAL
    m_toolsMenu->setItemEnabled( Amarok::Menu::ID_SHOW_VIS_SELECTOR, true );
    #else
    m_toolsMenu->setItemEnabled( Amarok::Menu::ID_SHOW_VIS_SELECTOR, false );
    #endif

    connect( m_toolsMenu, SIGNAL( aboutToShow() ), SLOT( toolsMenuAboutToShow() ) );
    connect( m_toolsMenu, SIGNAL( activated(int) ), SLOT( slotMenuActivated(int) ) );
    //END Tools menu

    //BEGIN Settings menu
    m_settingsMenu = new KPopupMenu( m_menubar );
    //TODO use KStdAction or KMainWindow
#ifndef Q_WS_MAC
    m_settingsMenu->insertItem( AmarokConfig::showToolbar() ? i18n( "Hide Toolbar" ) : i18n("Show Toolbar"), ID_SHOW_TOOLBAR );
    m_settingsMenu->insertItem( AmarokConfig::showPlayerWindow() ? i18n("Hide Player &Window") : i18n("Show Player &Window"), ID_SHOW_PLAYERWINDOW );
    m_settingsMenu->insertSeparator();
#endif

#ifdef Q_WS_MAC
    // plug it first, as this item will be moved to the applications first menu
    actionCollection()->action(KStdAction::name(KStdAction::Preferences))->plug( m_settingsMenu );
#endif
    actionCollection()->action("options_configure_globals")->plug( m_settingsMenu );
    actionCollection()->action(KStdAction::name(KStdAction::KeyBindings))->plug( m_settingsMenu );
    actionCollection()->action(KStdAction::name(KStdAction::ConfigureToolbars))->plug( m_settingsMenu );
    actionCollection()->action(KStdAction::name(KStdAction::Preferences))->plug( m_settingsMenu );

    connect( m_settingsMenu, SIGNAL( activated(int) ), SLOT( slotMenuActivated(int) ) );
    //END Settings menu

    m_menubar->insertItem( i18n( "E&ngage" ), actionsMenu );
    m_menubar->insertItem( i18n( "&Playlist" ), playlistMenu );
    m_menubar->insertItem( i18n( "&Mode" ), modeMenu );
    m_menubar->insertItem( i18n( "&Tools" ), m_toolsMenu );
    m_menubar->insertItem( i18n( "&Settings" ), m_settingsMenu );
    m_menubar->insertItem( i18n( "&Help" ), Amarok::Menu::helpMenu() );


    QBoxLayout *layV = new QVBoxLayout( this );
    layV->addWidget( m_menubar );
    layV->addWidget( m_browsers, 1 );
    layV->addWidget( m_toolbar );
    layV->addSpacing( 2 );
    layV->addWidget( statusbar );

    //The volume slider later becomes our FocusProxy, so all wheelEvents get redirected to it
    m_toolbar->setFocusPolicy( QWidget::WheelFocus );
    m_toolbar->setFlat( true );
    m_toolbar->setMovingEnabled( false );
    playlist->setMargin( 2 );
    playlist->installEventFilter( this ); //we intercept keyEvents


    //<XMLGUI>
    {
        QString xmlFile = Amarok::config()->readEntry( "XMLFile", "amarokui.rc" );

        // this bug can bite you if you are a pre 1.2 user, we
        // deleted amarokui_first.rc, but we must still support it
        // NOTE 1.4.1 we remove amarokui_xmms.rc too, so we can only be this ui.rc
        xmlFile = "amarokui.rc";

        setXMLFile( xmlFile );
        createGUI(); //NOTE we implement this
    }
    //</XMLGUI>


    //<Browsers>
    {
        Debug::Block block( "Creating browsers. Please report long start times!" );

        #define addBrowserMacro( Type, name, text, icon ) { \
            Debug::Block block( name ); \
            m_browsers->addBrowser( name, new Type( name ), text, icon ); }

        #define addInstBrowserMacro( Type, name, text, icon ) { \
            Debug::Block block( name ); \
            m_browsers->addBrowser( name, Type::instance(), text, icon ); }

        addBrowserMacro( ContextBrowser, "ContextBrowser", i18n("Context"), Amarok::icon( "info" ) )
        addBrowserMacro( CollectionBrowser, "CollectionBrowser", i18n("Collection"), Amarok::icon( "collection" ) )
        m_browsers->makeDropProxy( "CollectionBrowser", CollectionView::instance() );
        addInstBrowserMacro( PlaylistBrowser, "PlaylistBrowser", i18n("Playlists"), Amarok::icon( "playlist" ) )

        //DEBUG: Comment out the addBrowserMacro line and uncomment the m_browsers line (passing in a vfat device name) to see the "virtual root" functionality

        addBrowserMacro( FileBrowser, "FileBrowser", i18n("Files"), Amarok::icon( "files" ) )
        //Add Magnatune browser
        addInstBrowserMacro( MagnatuneBrowser, "MagnatuneBrowser", i18n("Magnatune"), Amarok::icon( "magnatune" ) )

        new MediaBrowser( "MediaBrowser" );
        if( MediaBrowser::isAvailable() )
        {
            addInstBrowserMacro( MediaBrowser, "MediaBrowser", i18n("Devices"), Amarok::icon( "device" ) )
            //to re-enable mediabrowser hiding, uncomment this:
            //connect( MediaBrowser::instance(), SIGNAL( availabilityChanged( bool ) ),
            //         this, SLOT( mbAvailabilityChanged( bool ) ) );
            m_browsers->makeDropProxy( "MediaBrowser", MediaBrowser::queue() );

        }
        #undef addBrowserMacro
        #undef addInstBrowserMacro
    }
    //</Browsers>

    connect( Playlist::instance()->qscrollview(), SIGNAL( dynamicModeChanged( const DynamicMode* ) ),
             PlaylistBrowser::instance(), SLOT( loadDynamicItems() ) );


    qApp->installEventFilter( this ); // keyboards shortcuts for the browsers

    connect( playlist, SIGNAL( itemCountChanged(     int, int, int, int, int, int ) ),
             statusbar,  SLOT( slotItemCountChanged( int, int, int, int, int, int ) ) );
    connect( playlist, SIGNAL( queueChanged( const PLItemList &, const PLItemList & ) ),
             statusbar,  SLOT( updateQueueLabel() ) );
    connect( playlist, SIGNAL( aboutToClear() ), m_lineEdit, SLOT( clear() ) );
    Amarok::MessageQueue::instance()->sendMessages();
}

void PlaylistWindow::slotSetFilter( const QString &filter ) //SLOT
{
    m_lineEdit->setText( filter );
}

void PlaylistWindow::slotEditFilter() //SLOT
{
    EditFilterDialog *fd = new EditFilterDialog( this, true, m_lineEdit->text() );
    connect( fd, SIGNAL(filterChanged(const QString &)), SLOT(slotSetFilter(const QString &)) );
    if( fd->exec() )
        m_lineEdit->setText( fd->filter() );
    delete fd;
}

void PlaylistWindow::addBrowser( const QString &name, QWidget *browser, const QString &text, const QString &icon )
{
    if( !m_browsers->browser( name ) )
        m_browsers->addBrowser( name, browser, text, icon );
    if( name == "MediaBrowser" )
    {
        m_browsers->makeDropProxy( "MediaBrowser", MediaBrowser::queue() );
    }
}


/**
 * Reload the amarokui.rc xml file.
 * mainly just used by amarok::Menu
 */
void PlaylistWindow::recreateGUI()
{
    reloadXML();
    createGUI();
}


/**
 * Create the amarok gui from the xml file.
 */
void PlaylistWindow::createGUI()
{
    setUpdatesEnabled( false );

    LastFm::Controller::instance(); // create love/ban/skip actions

    m_toolbar->clear();

    //KActions don't unplug themselves when the widget that is plugged is deleted!
    //we need to unplug to detect if the menu is plugged in App::applySettings()
    //TODO report to bugs.kde.org
    //we unplug after clear as otherwise it crashes! dunno why..
     KActionPtrList actions = actionCollection()->actions();
     for( KActionPtrList::Iterator it = actions.begin(), end = actions.end(); it != end; ++it )
         (*it)->unplug( m_toolbar );

    KXMLGUIBuilder builder( this );
    KXMLGUIFactory factory( &builder, this );

    //build Toolbar, plug actions
    factory.addClient( this );

    //TEXT ON RIGHT HACK
    //KToolBarButtons have independent settings for their appearance.
    //KToolBarButton::modeChange() causes that button to set its mode to that of its parent KToolBar
    //KToolBar::setIconText() calls modeChange() for children, unless 2nd param is false

    QStringList list;
    list << "toolbutton_playlist_add"
//         << "toolbutton_playlist_clear"
//         << "toolbutton_playlist_shuffle"
//         << "toolbutton_playlist_show"
         << "toolbutton_burn_menu"
         << "toolbutton_amarok_menu";

    m_toolbar->setIconText( KToolBar::IconTextRight, false ); //we want some buttons to have text on right

    const QStringList::ConstIterator end  = list.constEnd();
    const QStringList::ConstIterator last = list.fromLast();
    for( QStringList::ConstIterator it = list.constBegin(); it != end; ++it )
    {
        KToolBarButton* const button = static_cast<KToolBarButton*>( m_toolbar->child( (*it).latin1() ) );

        if ( button ) {
            button->modeChange();
            button->setFocusPolicy( QWidget::NoFocus );
        }
    }

    m_toolbar->setIconText( KToolBar::IconOnly, false ); //default appearance
    conserveMemory();
    setUpdatesEnabled( true );
}


/**
 * Apply the loaded settings on the playlist window.
 * this function loads the custom fonts (if chosen) and than calls PlayList::instance()->applySettings();
 */
void PlaylistWindow::applySettings()
{
    switch( AmarokConfig::useCustomFonts() )
    {
    case true:
        Playlist::instance()->setFont( AmarokConfig::playlistWindowFont() );
        ContextBrowser::instance()->setFont( AmarokConfig::contextBrowserFont() );
        break;
    case false:
        Playlist::instance()->unsetFont();
        ContextBrowser::instance()->unsetFont();
        break;
    }
}


/**
 * @param o The object
 * @param e The event
 *
 * Here we filter some events for the Playlist Search LineEdit and the Playlist. @n
 * this makes life easier since we have more useful functions available from this class
 */
bool PlaylistWindow::eventFilter( QObject *o, QEvent *e )
{


    Playlist* const pl = Playlist::instance();
    typedef QListViewItemIterator It;

    switch( e->type() )
    {
    case 6/*QEvent::KeyPress*/: