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                : Fre Nov 15 2002
  copyright            : (C) Mark Kretschmann <[e-mail]>
                       : (C) Max Howell <[e-mail]>
                       : (C) G??bor Lehel <[e-mail]>
***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#include "config.h"           //HAVE_LIBVISUAL definition

#include "actionclasses.h"    //see toolbar construction
#include "amarok.h"
#include "amarokconfig.h"
#include "browserbar.h"
#include "clicklineedit.h"    //m_lineEdit
#include "collectionbrowser.h"
#include "contextbrowser.h"
#include "debug.h"
#include "mediadevicemanager.h"
#include "editfilterdialog.h"
#include "enginecontroller.h" //for actions in ctor
#include "filebrowser.h"
#include "k3bexporter.h"
#include "lastfm.h"           //check credentials when adding lastfm streams
#include "mediabrowser.h"
#include "dynamicmode.h"
#include "playlist.h"
#include "playlistbrowser.h"
#include "playlistwindow.h"
#include "scriptmanager.h"
#include "statistics.h"
#include "statusbar.h"
#include "threadmanager.h"
#include "magnatunebrowser/magnatunebrowser.h"

#include <qevent.h>           //eventFilter()
#include <qfont.h>
#include <qheader.h>
#include <qlayout.h>
#include <qlabel.h>           //search filter label

#include <qpainter.h>         //dynamic title
#include <qpen.h>

#include <qsizepolicy.h>      //qspaceritem in dynamic bar
#include <qtimer.h>           //search filter timer
#include <qtooltip.h>         //QToolTip::add()
#include <qvbox.h>            //contains the playlist

#include <kaction.h>          //m_actionCollection
#include <kapplication.h>     //kapp
#include <kfiledialog.h>      //savePlaylist(), openPlaylist()
#include <kglobal.h>
#include <khtml_part.h>       //Welcome Tab
#include <kiconloader.h>      //ClearFilter button
#include <kinputdialog.h>     //slotAddStream()
#include <klocale.h>
#include <kmenubar.h>
#include <kmessagebox.h>      //savePlaylist()
#include <kpopupmenu.h>
#include <kpushbutton.h>
#include <kstandarddirs.h>    //Welcome Tab, locate welcome.html
#include <ktoolbar.h>
#include <ktoolbarbutton.h>   //createGUI()
#include <kxmlguibuilder.h>   //XMLGUI
#include <kxmlguifactory.h>   //XMLGUI

#include <fixx11h.h>



//////////////////////////////////////////////////////////////////////////////////////////
/// CLASS Amarok::ToolBar
//////////////////////////////////////////////////////////////////////////////////////////

namespace Amarok
{
    class ToolBar : public KToolBar
    {
    public:
        ToolBar( QWidget *parent, const char *name )
            : KToolBar( parent, name )
        {}

    protected:
        virtual void
        contextMenuEvent( QContextMenuEvent *e ) {
            Amarok::Menu::instance()->popup( e->globalPos() );
        }

        virtual void
        wheelEvent( QWheelEvent *e ) {
            EngineController::instance()->increaseVolume( e->delta() / Amarok::VOLUME_SENSITIVITY );
        }
    };
}

PlaylistWindow *PlaylistWindow::s_instance = 0;

PlaylistWindow::PlaylistWindow()
        : QWidget( 0, "PlaylistWindow", Qt::WGroupLeader )
        , KXMLGUIClient()
        , m_lastBrowser( 0 )
{
    s_instance = this;

    // Sets caption and icon correctly (needed e.g. for GNOME)
    kapp->setTopWidget( this );

    KActionCollection* const ac = actionCollection();
    const EngineController* const ec = EngineController::instance();

    ac->setAutoConnectShortcuts( false );
    ac->setWidget( this );

    new K3bExporter();

    KStdAction::configureToolbars( kapp, SLOT( slotConfigToolBars() ), ac );
    KStdAction::keyBindings( kapp, SLOT( slotConfigShortcuts() ), ac );
    KStdAction::keyBindings( kapp, SLOT( slotConfigGlobalShortcuts() ), ac, "options_configure_globals" );
    KStdAction::preferences( kapp, SLOT( slotConfigAmarok() ), ac );
    ac->action("options_configure_globals")->setIcon( Amarok::icon( "configure" ) );
    ac->action(KStdAction::name(KStdAction::KeyBindings))->setIcon( Amarok::icon( "configure" ) );
    ac->action(KStdAction::name(KStdAction::ConfigureToolbars))->setIcon( Amarok::icon( "configure" ) );
    ac->action(KStdAction::name(KStdAction::Preferences))->setIcon( Amarok::icon( "configure" ) );

    KStdAction::quit( kapp, SLOT( quit() ), ac );
    KStdAction::open( this, SLOT(slotAddLocation()), ac, "playlist_add" )->setText( i18n("&Add Media...") );
    ac->action( "playlist_add" )->setIcon( Amarok::icon( "files" ) );
    KStdAction::open( this, SLOT(slotAddStream()), ac, "stream_add" )->setText( i18n("&Add Stream...") );
    ac->action( "stream_add" )->setIcon( Amarok::icon( "files" ) );
    KStdAction::save( this, SLOT(savePlaylist()), ac, "playlist_save" )->setText( i18n("&Save Playlist As...") );
    ac->action( "playlist_save" )->setIcon( Amarok::icon( "save" ) );

    //FIXME: after string freeze rename to "Burn Current Playlist"?
    new KAction( i18n("Burn to CD"), Amarok::icon( "burn" ), 0, this, SLOT(slotBurnPlaylist()), ac, "playlist_burn" );
    actionCollection()->action("playlist_burn")->setEnabled( K3bExporter::isAvailable() );
    new KAction( i18n("Play Media..."), Amarok::icon( "files" ), 0, this, SLOT(slotPlayMedia()), ac, "playlist_playmedia" );
    new KAction( i18n("Play Audio CD"), Amarok::icon( "album" ), 0, this, SLOT(playAudioCD()), ac, "play_audiocd" );
    KAction *playPause = new KAction( i18n( "&Play/Pause" ), Amarok::icon( "play" ), Key_Space, ec, SLOT( playPause() ), ac, "play_pause" );
    new KAction( i18n("Script Manager"), Amarok::icon( "scripts" ), 0, this, SLOT(showScriptSelector()), ac, "script_manager" );
    new KAction( i18n("Queue Manager"), Amarok::icon( "queue" ), 0, this, SLOT(showQueueManager()), ac, "queue_manager" );
    KAction *seekForward = new KAction( i18n( "&Seek Forward" ), Amarok::icon( "fastforward" ), Key_Right, ec, SLOT( seekForward() ), ac, "seek_forward" );
    KAction *seekBackward = new KAction( i18n( "&Seek Backward" ), Amarok::icon( "rewind" ), Key_Left, ec, SLOT( seekBackward() ), ac, "seek_backward" );
    new KAction( i18n("Statistics"), Amarok::icon( "info" ), 0, this, SLOT(showStatistics()), ac, "statistics" );
    new KAction( i18n("Update Collection"), Amarok::icon( "refresh" ), 0, CollectionDB::instance(), SLOT( scanModifiedDirs() ), actionCollection(), "update_collection" );

    m_lastfmTags << "Alternative" << "Ambient" << "Chill Out" << "Classical" << "Dance"
                 << "Electronica" << "Favorites" << "Heavy Metal" << "Hip Hop" << "Indie Rock"
                 << "Industrial" << "Japanese" << "Pop" << "Psytrance" << "Rap" << "Rock"
                 << "Soundtrack" << "Techno" << "Trance";

    KPopupMenu* playTagRadioMenu = new KPopupMenu( this );
    int id = 0;
    foreach( m_lastfmTags ) {
        playTagRadioMenu->insertItem( *it, this, SLOT( playLastfmGlobaltag( int ) ), 0, id );
        ++id;
    }

    KPopupMenu* addTagRadioMenu = new KPopupMenu( this );
    id = 0;
    foreach( m_lastfmTags ) {
        addTagRadioMenu->insertItem( *it, this, SLOT( addLastfmGlobaltag( int ) ), 0, id );
        ++id;
    }

    KActionMenu* playLastfm = new KActionMenu( i18n( "Play las&t.fm Stream" ), Amarok::icon( "audioscrobbler" ), ac, "lastfm_play" );
    QPopupMenu* playLastfmMenu = playLastfm->popupMenu();
    playLastfmMenu->insertItem( i18n( "Personal Radio" ), this, SLOT( playLastfmPersonal() ) );
    playLastfmMenu->insertItem( i18n( "Neighbor Radio" ), this, SLOT( playLastfmNeighbor() ) );
    playLastfmMenu->insertItem( i18n( "Custom Station" ), this, SLOT( playLastfmCustom() ) );
    playLastfmMenu->insertItem( i18n( "Global Tag Radio" ), playTagRadioMenu );

    KActionMenu* addLastfm = new KActionMenu( i18n( "Add las&t.fm Stream" ), Amarok::icon( "audioscrobbler" ), ac, "lastfm_add" );
    QPopupMenu* addLastfmMenu = addLastfm->popupMenu();
    addLastfmMenu->insertItem( i18n( "Personal Radio" ), this, SLOT( addLastfmPersonal() ) );
    addLastfmMenu->insertItem( i18n( "Neighbor Radio" ), this, SLOT( addLastfmNeighbor() ) );
    addLastfmMenu->insertItem( i18n( "Custom Station" ), this, SLOT( addLastfmCustom() ) );
    addLastfmMenu->insertItem( i18n( "Global Tag Radio" ), addTagRadioMenu );

    ac->action( "options_configure_globals" )->setText( i18n( "Configure &Global Shortcuts..." ) );

    new KAction( i18n( "Previous Track" ), Amarok::icon( "back" ), 0, ec, SLOT( previous() ), ac, "prev" );
    new KAction( i18n( "Play" ), Amarok::icon( "play" ), 0, ec, SLOT( play() ), ac, "play" );
    new KAction( i18n( "Pause" ), Amarok::icon( "pause" ), 0, ec, SLOT( pause() ), ac, "pause" );
    new KAction( i18n( "Next Track" ), Amarok::icon( "next" ), 0, ec, SLOT( next() ), ac, "next" );

    KAction *toggleFocus = new KAction( i18n( "Toggle Focus" ), "reload", CTRL+Key_Tab, this, SLOT( slotToggleFocus() ), ac, "toggle_focus" );


    { // KAction idiocy -- shortcuts don't work until they've been plugged into a menu
        KPopupMenu asdf;

        playPause->plug( &asdf );
        seekForward->plug( &asdf );
        seekBackward->plug( &asdf );
        toggleFocus->plug( &asdf );

        playPause->unplug( &asdf );
        seekForward->unplug( &asdf );
        seekBackward->unplug( &asdf );
        toggleFocus->unplug( &asdf );
    }


    new Amarok::MenuAction( ac );
    new Amarok::StopAction( ac );
    new Amarok::PlayPauseAction( ac );
    new Amarok::AnalyzerAction( ac );
    new Amarok::RepeatAction( ac );
    new Amarok::RandomAction( ac );
    new Amarok::FavorAction( ac );
    new Amarok::VolumeAction( ac );

    if( K3bExporter::isAvailable() )
        new Amarok::BurnMenuAction( ac );

    if( AmarokConfig::playlistWindowSize().isValid() ) {
        // if first ever run, use sizeHint(), and let
        // KWin place us otherwise use the stored values
        resize( AmarokConfig::playlistWindowSize() );
        move( AmarokConfig::playlistWindowPos() );
    }
}

PlaylistWindow::~PlaylistWindow()
{
    AmarokConfig::setPlaylistWindowPos( pos() );  //TODO de XT?
    AmarokConfig::setPlaylistWindowSize( size() ); //TODO de XT?
}


///////// public interface

/**
 * This function will initialize the playlist window.
 */
void PlaylistWindow::init()
{
    DEBUG_BLOCK

    //this function is necessary because Amarok::actionCollection() returns our actionCollection
    //via the App::m_pPlaylistWindow pointer since App::m_pPlaylistWindow is not defined until
    //the above ctor returns it causes a crash unless we do the initialisation in 2 stages.

    m_browsers = new BrowserBar( this );

    //<Dynamic Mode Status Bar />
    DynamicBar *dynamicBar = new DynamicBar( m_browsers->container());

    QFrame *playlist;

    { //<Search LineEdit>
        KToolBar *bar = new KToolBar( m_browsers->container(), "NotMainToolBar" );
        bar->setIconSize( 22, false ); //looks more sensible
        bar->setFlat( true ); //removes the ugly frame
        bar->setMovingEnabled( false ); //removes the ugly frame

        playlist = new Playlist( m_browsers->container() );
        actionCollection()->action( "playlist_clear")->plug( bar );
        actionCollection()->action( "playlist_save")->plug( bar );
        bar->addSeparator();
        actionCollection()->action( "playlist_undo")->plug( bar );
        actionCollection()->action( "playlist_redo")->plug( bar );
        bar->boxLayout()->addStretch();
        QWidget *button = new KToolBarButton( "locationbar_erase", 1, bar );
        QLabel *filter_label = new QLabel( i18n("S&earch:") + ' ', bar );
        m_lineEdit = new ClickLineEdit( i18n( "Playlist Search" ), bar );
        filter_label->setBuddy( m_lineEdit );
        bar->setStretchableWidget( m_lineEdit );
        KPushButton *filterButton = new KPushButton("...", bar, "filter");
        filterButton->setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Fixed );

        m_lineEdit->setFrame( QFrame::Sunken );
        m_lineEdit->installEventFilter( this ); //we intercept keyEvents

        connect( button, SIGNAL(clicked()), m_lineEdit, SLOT(clear()) );
        connect( m_lineEdit, SIGNAL(textChanged( const QString& )),
                playlist, SLOT(setFilterSlot( const QString& )) );
        connect( filterButton, SIGNAL( clicked() ), SLOT( slotEditFilter() ) );

        QToolTip::add( button, i18n( "Clear search field" ) );
        QString filtertip = i18n( "Enter space-separated terms to search in the playlist.\n\n"
                                  "Advanced, Google-esque syntax is also available;\n"
                                  "see the handbook (The Playlist section of chapter 4) for details." );

        QToolTip::add( m_lineEdit, filtertip );
        QToolTip::add( filterButton, i18n( "Click to edit playlist filter" ) );
    } //</Search LineEdit>


    dynamicBar->init();
    m_toolbar = new Amarok::ToolBar( m_browsers->container(), "mainToolBar" );
#ifndef Q_WS_MAC
    m_toolbar->setShown( AmarokConfig::showToolbar() );
#endif
    QWidget *statusbar = new Amarok::StatusBar( this );

    KAction* repeatAction = Amarok::actionCollection()->action( "repeat" );
    connect( repeatAction, SIGNAL( activated( int ) ), playlist, SLOT( slotRepeatTrackToggled( int ) ) );

    m_menubar = new KMenuBar( this );