notationview.cpp

LINUX下的混音软件

                                      m_properties, this)),
        m_vlayout(new NotationVLayout(&doc->getComposition(), m_notePixmapFactory,
                                      m_properties, this)),
        m_chordNameRuler(0),
        m_tempoRuler(0),
        m_rawNoteRuler(0),
        m_annotationsVisible(false),
        m_lilypondDirectivesVisible(false),
        m_selectDefaultNote(0),
        m_fontCombo(0),
        m_fontSizeCombo(0),
        m_spacingCombo(0),
        m_fontSizeActionMenu(0),
        m_pannerDialog(0),
        m_renderTimer(0),
        m_playTracking(false),
        m_progressDisplayer(PROGRESS_NONE),
        m_inhibitRefresh(true),
        m_ok(false),
        m_printMode(true),
        m_printSize(8) // set in positionStaffs
{
    assert(segments.size() > 0);
    NOTATION_DEBUG << "NotationView print ctor" << endl;


    // Initialise the display-related defaults that will be needed
    // by both the actions and the layout toolbar

    m_config->setGroup(NotationViewConfigGroup);

    if (referenceView)
    {
        m_fontName = referenceView->m_fontName;
    } else
    {
        m_fontName = qstrtostr(m_config->readEntry
                               ("notefont",
                                strtoqstr(NoteFontFactory::getDefaultFontName())));
    }


    // Force largest font size
    std::vector<int> sizes = NoteFontFactory::getAllSizes(m_fontName);
    m_fontSize = sizes[sizes.size() - 1];

    if (referenceView)
    {
        m_hlayout->setSpacing(referenceView->m_hlayout->getSpacing());
        m_hlayout->setProportion(referenceView->m_hlayout->getProportion());
    } else
    {
        int defaultSpacing = m_config->readNumEntry("spacing", 100);
        m_hlayout->setSpacing(defaultSpacing);
        int defaultProportion = m_config->readNumEntry("proportion", 60);
        m_hlayout->setProportion(defaultProportion);
    }

    delete m_notePixmapFactory;
    m_notePixmapFactory = new NotePixmapFactory(m_fontName, m_fontSize);
    m_hlayout->setNotePixmapFactory(m_notePixmapFactory);
    m_vlayout->setNotePixmapFactory(m_notePixmapFactory);

    setBackgroundMode(PaletteBase);
    m_config->setGroup(NotationViewConfigGroup);

    QCanvas *tCanvas = new QCanvas(this);
    tCanvas->resize(width() * 2, height() * 2); //!!!

    setCanvasView(new NotationCanvasView(*this, tCanvas, getCentralWidget()));
    canvas()->retune(128); // tune for larger canvas

    for (unsigned int i = 0; i < segments.size(); ++i)
    {
        m_staffs.push_back(new NotationStaff(canvas(), segments[i], 0,  // snap
                                             i, this,
                                             m_fontName, m_fontSize));
    }

    m_currentStaff = 0;
    m_staffs[0]->setCurrent(true);

    ProgressDialog* progressDlg = 0;

    if (parent)
    {

        ProgressDialog::processEvents();

        NOTATION_DEBUG << "NotationView : setting up progress dialog" << endl;

        progressDlg = new ProgressDialog(i18n("Preparing to print..."),
                                         100, parent);
        progressDlg->setAutoClose(false);
        progressDlg->setAutoReset(true);
        progressDlg->setMinimumDuration(1000);
        setupProgress(progressDlg);

        m_progressDisplayer = PROGRESS_DIALOG;
    }

    try
    {

        setPageMode(LinedStaff::MultiPageMode); // also positions and renders the staffs!

        for (unsigned int i = 0; i < m_staffs.size(); ++i) {
            m_staffs[i]->getSegment().getRefreshStatus
            (m_segmentsRefreshStatusIds[i]).setNeedsRefresh(false);
        }

        m_ok = true;

    } catch (ProgressReporter::Cancelled c)
    {
        // when cancelled, m_ok is false -- checked by calling method
        NOTATION_DEBUG << "NotationView ctor : layout Cancelled" << endl;
    }

    NOTATION_DEBUG << "NotationView ctor : m_ok = " << m_ok << endl;

    delete progressDlg;

    if (!isOK())
    {
        setOutOfCtor();
        return ; // In case more code is added there later
    }

    setOutOfCtor(); // keep this as last call in the ctor
}

NotationView::~NotationView()
{
    NOTATION_DEBUG << "-> ~NotationView()" << endl;

    if (!m_printMode && m_ok)
        slotSaveOptions();

    delete m_chordNameRuler;

    delete m_renderTimer;

    for (unsigned int i = 0; i < m_staffs.size(); ++i) {
        for (Segment::iterator j = m_staffs[i]->getSegment().begin();
                j != m_staffs[i]->getSegment().end(); ++j) {
            removeViewLocalProperties(*j);
        }
        delete m_staffs[i]; // this will erase all "notes" canvas items
    }

    PixmapArrayGC::deleteAll();
    Profiles::getInstance()->dump();

    NOTATION_DEBUG << "<- ~NotationView()" << endl;
}

void
NotationView::removeViewLocalProperties(Event *e)
{
    Event::PropertyNames names(e->getPropertyNames());
    std::string prefix(getViewLocalPropertyPrefix());

    for (Event::PropertyNames::iterator i = names.begin();
            i != names.end(); ++i) {
        if (i->getName().substr(0, prefix.size()) == prefix) {
            e->unset(*i);
        }
    }
}

const NotationProperties &
NotationView::getProperties() const
{
    return m_properties;
}

void NotationView::positionStaffs()
{
    NOTATION_DEBUG << "NotationView::positionStaffs" << endl;

    m_config->setGroup(NotationViewConfigGroup);
    m_printSize = m_config->readUnsignedNumEntry("printingnotesize", 5);

    int minTrack = 0, maxTrack = 0;
    bool haveMinTrack = false;
    typedef std::map<int, int> TrackIntMap;
    TrackIntMap trackHeights;
    TrackIntMap trackCoords;

    int pageWidth, pageHeight, leftMargin, topMargin;
    pageWidth = getPageWidth();
    pageHeight = getPageHeight();
    leftMargin = 0, topMargin = 0;
    getPageMargins(leftMargin, topMargin);

    int accumulatedHeight;
    int rowsPerPage = 1;
    int legerLines = 8;
    if (m_pageMode != LinedStaff::LinearMode)
        legerLines = 7;
    int rowGapPercent = (m_staffs.size() > 1 ? 40 : 10);
    int aimFor = -1;

    bool done = false;

    int titleHeight = 0;

    if (m_title)
        delete m_title;
    if (m_subtitle)
        delete m_subtitle;
    if (m_composer)
        delete m_composer;
    if (m_copyright)
        delete m_copyright;
    m_title = m_subtitle = m_composer = m_copyright = 0;

    if (m_pageMode == LinedStaff::MultiPageMode) {

        const Configuration &metadata =
            getDocument()->getComposition().getMetadata();

        QFont defaultFont(NotePixmapFactory::defaultSerifFontFamily);
        m_config->setGroup(NotationViewConfigGroup);
        QFont font = m_config->readFontEntry("textfont", &defaultFont);
        font.setPixelSize(m_fontSize * 5);
        QFontMetrics metrics(font);

        if (metadata.has(CompositionMetadataKeys::Title)) {
            QString title(strtoqstr(metadata.get<String>
                                    (CompositionMetadataKeys::Title)));
            m_title = new QCanvasText(title, font, canvas());
            m_title->setX(m_leftGutter + pageWidth / 2 - metrics.width(title) / 2);
            m_title->setY(20 + topMargin / 4 + metrics.ascent());
            m_title->show();
            titleHeight += metrics.height() * 3 / 2 + topMargin / 4;
        }

        font.setPixelSize(m_fontSize * 3);
        metrics = QFontMetrics(font);

        if (metadata.has(CompositionMetadataKeys::Subtitle)) {
            QString subtitle(strtoqstr(metadata.get<String>
                                       (CompositionMetadataKeys::Subtitle)));
            m_subtitle = new QCanvasText(subtitle, font, canvas());
            m_subtitle->setX(m_leftGutter + pageWidth / 2 - metrics.width(subtitle) / 2);
            m_subtitle->setY(20 + titleHeight + metrics.ascent());
            m_subtitle->show();
            titleHeight += metrics.height() * 3 / 2;
        }

        if (metadata.has(CompositionMetadataKeys::Composer)) {
            QString composer(strtoqstr(metadata.get<String>
                                       (CompositionMetadataKeys::Composer)));
            m_composer = new QCanvasText(composer, font, canvas());
            m_composer->setX(m_leftGutter + pageWidth - metrics.width(composer) - leftMargin);
            m_composer->setY(20 + titleHeight + metrics.ascent());
            m_composer->show();
            titleHeight += metrics.height() * 3 / 2;
        }

        font.setPixelSize(m_fontSize * 2);
        metrics = QFontMetrics(font);

        if (metadata.has(CompositionMetadataKeys::Copyright)) {
            QString copyright(strtoqstr(metadata.get<String>
                                        (CompositionMetadataKeys::Copyright)));
            m_copyright = new QCanvasText(copyright, font, canvas());
            m_copyright->setX(m_leftGutter + leftMargin);
            m_copyright->setY(20 + pageHeight - topMargin - metrics.descent());
            m_copyright->show();
        }
    }

    while (1) {

        accumulatedHeight = 0;
        int maxTrackHeight = 0;

        trackHeights.clear();

        for (unsigned int i = 0; i < m_staffs.size(); ++i) {

            m_staffs[i]->setLegerLineCount(legerLines);

            int height = m_staffs[i]->getHeightOfRow();
            TrackId trackId = m_staffs[i]->getSegment().getTrack();
            Track *track =
                m_staffs[i]->getSegment().getComposition()->
                getTrackById(trackId);

            if (!track)
                continue; // This Should Not Happen, My Friend

            int trackPosition = track->getPosition();

            TrackIntMap::iterator hi = trackHeights.find(trackPosition);
            if (hi == trackHeights.end()) {
                trackHeights.insert(TrackIntMap::value_type
                                    (trackPosition, height));
            } else if (height > hi->second) {
                hi->second = height;
            }

            if (height > maxTrackHeight)
                maxTrackHeight = height;

            if (trackPosition < minTrack || !haveMinTrack) {
                minTrack = trackPosition;
                haveMinTrack = true;
            }
            if (trackPosition > maxTrack) {
                maxTrack = trackPosition;
            }
        }

        for (int i = minTrack; i <= maxTrack; ++i) {
            TrackIntMap::iterator hi = trackHeights.find(i);
            if (hi != trackHeights.end()) {
                trackCoords[i] = accumulatedHeight;
                accumulatedHeight += hi->second;
            }
        }

        accumulatedHeight += maxTrackHeight * rowGapPercent / 100;

        if (done)
            break;

        if (m_pageMode != LinedStaff::MultiPageMode) {

            rowsPerPage = 0;
            done = true;
            break;

        } else {

            // Check how well all this stuff actually fits on the
            // page.  If things don't fit as well as we'd like, modify
            // at most one parameter so as to save some space, then
            // loop around again and see if it worked.  This iterative
            // approach is inefficient but the time spent here is
            // neglible in context, and it's a simple way to code it.

            int staffPageHeight = pageHeight - topMargin * 2 - titleHeight;
            rowsPerPage = staffPageHeight / accumulatedHeight;

            if (rowsPerPage < 1) {

                if (legerLines > 5)
                    --legerLines;
                else if (rowGapPercent > 20)
                    rowGapPercent -= 10;
                else if (legerLines > 4)
                    --legerLines;
                else if (rowGapPercent > 0)
                    rowGapPercent -= 10;
                else if (legerLines > 3)
                    --legerLines;
                else if (m_printSize > 3)
                    --m_printSize;
                else { // just accept that we'll have to overflow
                    rowsPerPage = 1;
                    done = true;
                }

            } else {

                if (aimFor == rowsPerPage) {

                    titleHeight +=
                        (staffPageHeight - (rowsPerPage * accumulatedHeight)) / 2;