C++ MediaObject::errorString方法代码示例

void UBGraphicsAudioItemDelegate::togglePlayPause()
{
    if ( mDelegated && mDelegated->mediaObject() )
    {
        Phonon::MediaObject* media = mDelegated->mediaObject();

        if ( media->state() == Phonon::StoppedState ) {
            media->play();
        } else if ( media->state() == Phonon::PlayingState ) {
            if ( media->remainingTime() <= 0 ) {
                media->stop();
                media->play();
            } else {
                media->pause();
                if ( mDelegated->scene() )
                    mDelegated->scene()->setModified ( true );
            }
        } else if ( media->state() == Phonon::PausedState ) {
            if ( media->remainingTime() <= 0 ) {
                media->stop();
            }
            media->play();
        } else  if ( media->state() == Phonon::LoadingState ) {
            mDelegated->mediaObject()->setCurrentSource(mDelegated->mediaFileUrl());
            media->play();
        } else if (media->state() == Phonon::ErrorState){
            qDebug() << "Error appeared." << media->errorString();
        }
    }
}

void PlayerManager::slotStateChanged(Phonon::State newstate, Phonon::State oldstate)
{
    // Use sender() since either media object may have sent the signal.
    Phonon::MediaObject *mediaObject = qobject_cast<Phonon::MediaObject *>(sender());
    if(!mediaObject)
        return;

    // Handle errors for either media object
    if(newstate == Phonon::ErrorState) {
        QString errorMessage =
            i18nc(
              "%1 will be the /path/to/file, %2 will be some string from Phonon describing the error",
              "JuK is unable to play the audio file<nl/><filename>%1</filename><nl/>"
                "for the following reason:<nl/><message>%2</message>",
              m_file.absFilePath(),
              mediaObject->errorString()
            );

        switch(mediaObject->errorType()) {
            case Phonon::NoError:
                kDebug() << "received a state change to ErrorState but errorType is NoError!?";
                break;

            case Phonon::NormalError:
                forward();
                KMessageBox::information(0, errorMessage);
                break;

            case Phonon::FatalError:
                stop();
                KMessageBox::sorry(0, errorMessage);
                break;
        }
    }

    // Now bail out if we're not dealing with the currently playing media
    // object.

    if(mediaObject != m_media[m_curOutputPath])
        return;

    // Handle state changes for the playing media object.
    if(newstate == Phonon::StoppedState && oldstate != Phonon::LoadingState) {
        // If this occurs it should be due to a transitory shift (i.e. playing a different
        // song when one is playing now), since it didn't occur in the error handler.  Just
        // in case we really did abruptly stop, handle that case in a couple of seconds.
        QTimer::singleShot(2000, this, SLOT(slotUpdateGuiIfStopped()));

        JuK::JuKInstance()->setWindowTitle(i18n("JuK"));

        emit signalStop();
    }
    else if(newstate == Phonon::PausedState) {
        emit signalPause();
    }
    else { // PlayingState or BufferingState
        action("pause")->setEnabled(true);
        action("stop")->setEnabled(true);
        action("forward")->setEnabled(true);
        if(action<KToggleAction>("albumRandomPlay")->isChecked())
            action("forwardAlbum")->setEnabled(true);
        action("back")->setEnabled(true);

        JuK::JuKInstance()->setWindowTitle(i18nc(
            "%1 is the artist and %2 is the title of the currently playing track.", 
            "%1 - %2 :: JuK",
            m_file.tag()->artist(),
            m_file.tag()->title()));

        emit signalPlay();
    }
}