rosegardenguiapp.cpp

LINUX下的混音软件

    m_synthManager = 0;

    delete m_audioMixer;
    m_audioMixer = 0;

    delete m_bankEditor;
    m_bankEditor = 0;

    delete m_markerEditor;
    m_markerEditor = 0;

    delete m_tempoView;
    m_tempoView = 0;

    delete m_triggerSegmentManager;
    m_triggerSegmentManager = 0;

    delete oldView;

    // set the highlighted track
    m_view->slotSelectTrackSegments(comp.getSelectedTrack());

    // play tracking on in the editor by default: turn off if need be
    KToggleAction *trackingAction = dynamic_cast<KToggleAction *>
                                    (actionCollection()->action("toggle_tracking"));
    if (trackingAction && !trackingAction->isChecked()) {
        m_view->getTrackEditor()->slotToggleTracking();
    }

    m_view->show();

    connect(m_view->getTrackEditor()->getSegmentCanvas(),
            SIGNAL(showContextHelp(const QString &)),
            this,
            SLOT(slotShowToolHelp(const QString &)));

    // We have to do this to make sure that the 2nd call ("select")
    // actually has any effect. Activating the same radio action
    // doesn't work the 2nd time (like pressing down the same radio
    // button twice - it doesn't have any effect), so if you load two
    // files in a row, on the 2nd file a new SegmentCanvas will be
    // created but its tool won't be set, even though it will appear
    // to be selected.
    //
    actionCollection()->action("move")->activate();
    if (m_doc->getComposition().getNbSegments() > 0)
        actionCollection()->action("select")->activate();
    else
        actionCollection()->action("draw")->activate();

    int zoomLevel = m_doc->getConfiguration().
                    get
                        <Int>
                        (DocumentConfiguration::ZoomLevel);

    m_zoomSlider->setSize(double(zoomLevel) / 1000.0);
    slotChangeZoom(zoomLevel);

    //slotChangeZoom(int(m_zoomSlider->getCurrentSize()));

    stateChanged("new_file");

    ProgressDialog::processEvents();

    if (m_viewChordNameRuler->isChecked()) {
        SetWaitCursor swc;
        m_view->initChordNameRuler();
    } else {
        m_view->initChordNameRuler();
    }
}

void RosegardenGUIApp::setDocument(RosegardenGUIDoc* newDocument)
{
    if (m_doc == newDocument)
        return ;

    emit documentAboutToChange();
    kapp->processEvents(); // to make sure all opened dialogs (mixer, midi devices...) are closed

    // Take care of all subparts which depend on the document

    // Caption
    //
    QString caption = kapp->caption();
    setCaption(caption + ": " + newDocument->getTitle());

    //     // reset AudioManagerDialog
    //     //
    //     delete m_audioManagerDialog; // TODO : replace this with a connection to documentAboutToChange() sig.
    //     m_audioManagerDialog = 0;

    RosegardenGUIDoc* oldDoc = m_doc;

    m_doc = newDocument;

    if (m_seqManager) // when we're called at startup, the seq. man. isn't created yet
        m_seqManager->setDocument(m_doc);

    if (m_markerEditor)
        m_markerEditor->setDocument(m_doc);
    if (m_tempoView) {
        delete m_tempoView;
        m_tempoView = 0;
    }
    if (m_triggerSegmentManager)
        m_triggerSegmentManager->setDocument(m_doc);

    m_trackParameterBox->setDocument(m_doc);
    m_segmentParameterBox->setDocument(m_doc);
    m_instrumentParameterBox->setDocument(m_doc);

#ifdef HAVE_LIBLO

    if (m_pluginGUIManager) {
        m_pluginGUIManager->stopAllGUIs();
        m_pluginGUIManager->setStudio(&m_doc->getStudio());
    }
#endif

    if (getView() &&
            getView()->getTrackEditor() &&
            getView()->getTrackEditor()->getSegmentCanvas()) {
        getView()->getTrackEditor()->getSegmentCanvas()->endAudioPreviewGeneration();
    }

    // this will delete all edit views
    //
    delete oldDoc;

    // connect needed signals
    //
    connect(m_segmentParameterBox, SIGNAL(documentModified()),
            m_doc, SLOT(slotDocumentModified()));

    connect(m_doc, SIGNAL(pointerPositionChanged(timeT)),
            this, SLOT(slotSetPointerPosition(timeT)));

    connect(m_doc, SIGNAL(documentModified(bool)),
            this, SLOT(slotDocumentModified(bool)));

    connect(m_doc, SIGNAL(loopChanged(timeT, timeT)),
            this, SLOT(slotSetLoop(timeT, timeT)));

    m_doc->getCommandHistory()->attachView(actionCollection());

    connect(m_doc->getCommandHistory(), SIGNAL(commandExecuted()),
            SLOT(update()));
    connect(m_doc->getCommandHistory(), SIGNAL(commandExecuted()),
            SLOT(slotTestClipboard()));

    // connect and start the autosave timer
    connect(m_autoSaveTimer, SIGNAL(timeout()), this, SLOT(slotAutoSave()));
    m_autoSaveTimer->start(m_doc->getAutoSavePeriod() * 1000);

    // Connect the playback timer
    //
    connect(m_playTimer, SIGNAL(timeout()), this, SLOT(slotUpdatePlaybackPosition()));
    connect(m_stopTimer, SIGNAL(timeout()), this, SLOT(slotUpdateMonitoring()));

    // finally recreate the main view
    //
    initView();

    connect(m_doc, SIGNAL(devicesResyncd()),
            this, SLOT(slotDocumentDevicesResyncd()));

    m_doc->syncDevices();
    m_doc->clearModifiedStatus();

    if (newDocument->getStudio().haveMidiDevices()) {
        stateChanged("got_midi_devices");
    } else {
        stateChanged("got_midi_devices", KXMLGUIClient::StateReverse);
    }

    // Ensure the sequencer knows about any audio files
    // we've loaded as part of the new Composition
    //
    m_doc->prepareAudio();

    // Do not reset instrument prog. changes after all.
    //     if (m_seqManager)
    //         m_seqManager->preparePlayback(true);

    Composition &comp = m_doc->getComposition();

    // Set any loaded loop at the Composition and
    // on the marker on SegmentCanvas and clients
    //
    if (m_seqManager)
        m_doc->setLoop(comp.getLoopStart(), comp.getLoopEnd());

    emit documentChanged(m_doc);

    m_doc->clearModifiedStatus(); // because it's set as modified by the various
    // init operations
    // TODO: this sucks, have to sort it out somehow.

    // Readjust canvas size
    //
    m_view->getTrackEditor()->slotReadjustCanvasSize();

    m_stopTimer->start(100);
}

void
RosegardenGUIApp::openFile(QString filePath, ImportType type)
{
    RG_DEBUG << "RosegardenGUIApp::openFile " << filePath << endl;

    if (type == ImportCheckType && filePath.endsWith(".rgp")) {
        importProject(filePath);
        return ;
    }

    RosegardenGUIDoc *doc = createDocument(filePath, type);
    if (doc) {
        setDocument(doc);

        // fix # 1235755, "SPB combo not updating after document swap"
        RG_DEBUG << "RosegardenGUIApp::openFile(): calling slotDocColoursChanged() in doc" << endl;
        doc->slotDocColoursChanged();

        kapp->config()->setGroup(GeneralOptionsConfigGroup);
        if (kapp->config()->readBoolEntry("alwaysusedefaultstudio", false)) {

            QString autoloadFile =
                KGlobal::dirs()->findResource("appdata", "autoload.rg");

            QFileInfo autoloadFileInfo(autoloadFile);
            if (autoloadFileInfo.isReadable()) {

                RG_DEBUG << "Importing default studio from " << autoloadFile << endl;

                slotImportStudioFromFile(autoloadFile);
            }
        }

        QFileInfo fInfo(filePath);
        m_fileRecent->addURL(fInfo.absFilePath());
    }
}

RosegardenGUIDoc*
RosegardenGUIApp::createDocument(QString filePath, ImportType importType)
{
    QFileInfo info(filePath);
    RosegardenGUIDoc *doc = 0;

    if (!info.exists()) {
        // can happen with command-line arg, so...
        KStartupLogo::hideIfStillThere();
        KMessageBox::sorry(this, i18n("File \"%1\" does not exist").arg(filePath));
        return 0;
    }

    if (info.isDir()) {
        KStartupLogo::hideIfStillThere();
        KMessageBox::sorry(this, i18n("File \"%1\" is actually a directory"));
        return 0;
    }

    QFile file(filePath);

    if (!file.open(IO_ReadOnly)) {
        KStartupLogo::hideIfStillThere();
        QString errStr =
            i18n("You do not have read permission for \"%1\"").arg(filePath);

        KMessageBox::sorry(this, errStr);
        return 0;
    }

    // Stop if playing
    //
    if (m_seqManager && m_seqManager->getTransportStatus() == PLAYING)
        slotStop();

    slotEnableTransport(false);

    if (importType == ImportCheckType) {
        KMimeType::Ptr fileMimeType = KMimeType::findByPath(filePath);
        if (fileMimeType->name() == "audio/x-midi")
            importType = ImportMIDI;
        else if (fileMimeType->name() == "audio/x-rosegarden")
            importType = ImportRG4;
        else if (filePath.endsWith(".rose"))
            importType = ImportRG21;
        else if (filePath.endsWith(".h2song"))
            importType = ImportHydrogen;
    }


    switch (importType) {
    case ImportMIDI:
        doc = createDocumentFromMIDIFile(filePath);
        break;
    case ImportRG21:
        doc = createDocumentFromRG21File(filePath);
        break;
    case ImportHydrogen:
        doc = createDocumentFromHydrogenFile(filePath);
        break;
    default:
        doc = createDocumentFromRGFile(filePath);
    }

    slotEnableTransport(true);

    return doc;
}

RosegardenGUIDoc*
RosegardenGUIApp::createDocumentFromRGFile(QString filePath)
{
    // Check for an autosaved file to recover
    QString effectiveFilePath = filePath;
    bool canRecover = false;
    QString autoSaveFileName = kapp->checkRecoverFile(filePath, canRecover);

    if (canRecover) {
        // First check if the auto-save file is more recent than the doc
        QFileInfo docFileInfo(filePath), autoSaveFileInfo(autoSaveFileName);

        if (docFileInfo.lastModified() < autoSaveFileInfo.lastModified()) {

            RG_DEBUG << "RosegardenGUIApp::openFile : "
            << "found a more recent autosave file\n";

            // At this point the splash screen may still be there, hide it if
            // it's the case
            KStartupLogo::hideIfStillThere();

            // It is, so ask the user if he wants to use the autosave file
            int reply = KMessageBox::questionYesNo(this,
                                                   i18n("An auto-save file for this document has been found\nDo you want to open it instead ?"));

            if (reply == KMessageBox::Yes)
                // open the autosave file instead
                effectiveFilePath = autoSaveFileName;
            else {
                // user doesn't want the autosave, so delete it
                // so it won't bother us again if we reload
                canRecover = false;
                QFile::remove
                    (autoSaveFileName);
            }

        } else
            canRecover = false;
    }

    // Create a new blank document
    //
    RosegardenGUIDoc *newDoc = new RosegardenGUIDoc(this, m_pluginManager,