C++ Playlist::save方法代码示例

void PlaylistDialog::saveListAs()
{
	QString sDirectory =  Preferences::get_instance()->getDataDirectory()  + "playlists/";
	QFileDialog fd(this);
	fd.setFileMode ( QFileDialog::AnyFile );
	fd.setFilter ( trUtf8 ( "Hydrogen Playlist (*.h2playlist)" ) );
	fd.setAcceptMode ( QFileDialog::AcceptSave );
	fd.setWindowTitle ( trUtf8 ( "Save Playlist" ) );
	fd.setDirectory ( sDirectory );

	QString defaultFilename = "untitled.h2playlist";
	fd.selectFile ( defaultFilename );

	if ( fd.exec() != QDialog::Accepted ){
		return;
	}

	QString filename = fd.selectedFiles().first();

	Playlist* pPlaylist = Playlist::get_instance();
	if ( ! pPlaylist->save ( filename ) ){
		return;
	}

	Playlist::get_instance()->setIsModified(false);

	setWindowTitle ( trUtf8 ( "Playlist Browser" ) + QString(" - ") + filename );
}

void PlaylistDialog::saveList()
{
	Playlist* P = Playlist::get_instance();
	if ( P->get_filename() == "") {
		// just in case!
		return saveListAs();
	}

	if ( ! P->save ( P->get_filename() ) )
		return;
}

void PlaylistDialog::saveList()
{
	Playlist* pPlaylist = Playlist::get_instance();
	if ( pPlaylist->get_filename() == "") {
		// just in case!
		return saveListAs();
	}

	if ( ! pPlaylist->save ( pPlaylist->get_filename() ) ){
		return;
	}

	Playlist::get_instance()->setIsModified(false);
}

void JackOutput::jack_session_callback_impl(jack_session_event_t *event)
{
	INFOLOG("jack session calback");
	enum session_events{
		SAVE_SESSION,
		SAVE_AND_QUIT,
		SAVE_TEMPLATE
	};

	Hydrogen* H = Hydrogen::get_instance();
	Song* S = H->getSong();
	Preferences* P = Preferences::get_instance();
	EventQueue* EQ = EventQueue::get_instance();

	jack_session_event_t *ev = (jack_session_event_t *) event;

	QString jackSessionDirectory = (QString) ev->session_dir;
	QString retval = P->getJackSessionApplicationPath() + " --jacksessionid " + ev->client_uuid;

	/* Playlist mode */
	if ( H->m_PlayList.size() > 0 ) {
		Playlist* PL = Playlist::get_instance();

		if ( PL->get_filename().isEmpty() ) PL->set_filename( "untitled.h2playlist" );

		QString FileName = baseName ( PL->get_filename() );
		FileName.replace ( QString(" "), QString("_") );
		retval += " -p \"${SESSION_DIR}" + FileName + "\"";

		/* Copy all songs to Session Directory and update playlist */
		SongReader reader;
		for ( uint i = 0; i < H->m_PlayList.size(); ++i ) {
			QString BaseName = baseName ( H->m_PlayList[i].m_hFile );
			QString newName = jackSessionDirectory + BaseName;
			QString SongPath = reader.getPath ( H->m_PlayList[i].m_hFile );
			if ( SongPath != NULL && QFile::copy ( SongPath, newName ) ) {
				/* Keep only filename on list for relative read */
				H->m_PlayList[i].m_hFile = BaseName;
				//H->m_PlayList[i].m_hScript;
			} else {
				/* Note - we leave old path in playlist */
				ERRORLOG ( "Can't copy " + H->m_PlayList[i].m_hFile + " to " + newName );
				ev->flags = JackSessionSaveError;
			}
		}

		/* Save updated playlist */
		if ( ! PL->save ( jackSessionDirectory + FileName ) )
			ev->flags = JackSessionSaveError;
		/* Song Mode */
	} else {
		/* Valid Song is needed */
		if ( S->get_filename().isEmpty() ) S->set_filename("untitled.h2song");

		QString FileName = baseName ( S->get_filename() );
		FileName.replace ( QString(" "), QString("_") );
		S->set_filename(jackSessionDirectory + FileName);

		/* SongReader will look into SESSION DIR anyway */
		retval += " -s \"" + FileName + "\"";

		switch (ev->type) {
			case JackSessionSave:
				EQ->push_event(EVENT_JACK_SESSION, SAVE_SESSION);
				break;
			case JackSessionSaveAndQuit:
				EQ->push_event(EVENT_JACK_SESSION, SAVE_SESSION);
				EQ->push_event(EVENT_JACK_SESSION, SAVE_AND_QUIT);
				break;
			default:
				ERRORLOG( "JackSession: Unknown event type" );
				ev->flags = JackSessionSaveError;
		}
	}

	ev->command_line = strdup( retval.toUtf8().constData() );
	jack_session_reply (client, ev );
	jack_session_event_free (ev);
}