chordnameruler.cpp

LINUX下的混音软件

            ss.insert(*ci);
        }

        std::vector<SegmentRefreshMap::iterator> eraseThese;

        for (SegmentRefreshMap::iterator si = m_segments.begin();
                si != m_segments.end(); ++si) {
            if (ss.find(si->first) == ss.end()) {
                eraseThese.push_back(si);
                level = RecalcWhole;
                NOTATION_DEBUG << "Segment deleted, updating (now have " << m_segments.size() << " segments)" << endl;
            }
        }

        for (std::vector<SegmentRefreshMap::iterator>::iterator ei = eraseThese.begin();
                ei != eraseThese.end(); ++ei) {
            m_segments.erase(*ei);
        }


        for (SegmentSelection::iterator si = ss.begin();
                si != ss.end(); ++si) {

            if (m_segments.find(*si) == m_segments.end()) {
                m_segments.insert(SegmentRefreshMap::value_type
                                  (*si, (*si)->getNewRefreshStatusId()));
                level = RecalcWhole;
                NOTATION_DEBUG << "Segment created, adding (now have " << m_segments.size() << " segments)" << endl;
            }
        }

        if (m_currentSegment &&
                ss.find(m_currentSegment) == ss.end()) {
            m_currentSegment = 0;
            level = RecalcWhole;
        }
    }

    if (!m_chordSegment)
        m_chordSegment = new Segment();
    if (m_segments.empty())
        return ;

    SegmentRefreshStatus overallStatus;
    overallStatus.setNeedsRefresh(false);

    for (SegmentRefreshMap::iterator i = m_segments.begin();
            i != m_segments.end(); ++i) {
        SegmentRefreshStatus &status =
            i->first->getRefreshStatus(i->second);
        if (status.needsRefresh()) {
            overallStatus.push(status.from(), status.to());
        }
    }

    // We now have the overall area affected by these changes, across
    // all segments.  If it's entirely within our displayed area, just
    // recalculate the displayed area; if it overlaps, calculate the
    // union of the two areas; if it's entirely without, calculate
    // nothing.

    if (level == RecalcNone) {
        if (from == to) {
            NOTATION_DEBUG << "ChordNameRuler::recalculate: from==to, recalculating all" << endl;
            level = RecalcWhole;
        } else if (overallStatus.from() == overallStatus.to()) {
            NOTATION_DEBUG << "ChordNameRuler::recalculate: overallStatus.from==overallStatus.to, ignoring" << endl;
            level = RecalcNone;
        } else if (overallStatus.from() >= from && overallStatus.to() <= to) {
            NOTATION_DEBUG << "ChordNameRuler::recalculate: change is " << overallStatus.from() << "->" << overallStatus.to() << ", I show " << from << "->" << to << ", recalculating visible area" << endl;
            level = RecalcVisible;
        } else if (overallStatus.from() >= to || overallStatus.to() <= from) {
            NOTATION_DEBUG << "ChordNameRuler::recalculate: change is " << overallStatus.from() << "->" << overallStatus.to() << ", I show " << from << "->" << to << ", ignoring" << endl;
            level = RecalcNone;
        } else {
            NOTATION_DEBUG << "ChordNameRuler::recalculate: change is " << overallStatus.from() << "->" << overallStatus.to() << ", I show " << from << "->" << to << ", recalculating whole" << endl;
            level = RecalcWhole;
        }
    }

    if (level == RecalcNone)
        return ;

    for (SegmentRefreshMap::iterator i = m_segments.begin();
            i != m_segments.end(); ++i) {
        i->first->getRefreshStatus(i->second).setNeedsRefresh(false);
    }

    if (!m_currentSegment) { //!!! arbitrary, must do better
        //!!! need a segment starting at zero or so with a clef and key in it!
        m_currentSegment = m_segments.begin()->first;
    }

    /*!!!
     
    	for (Composition::iterator ci = m_composition->begin();
    	     ci != m_composition->end(); ++ci) {
     
    	    if ((*ci)->getEndMarkerTime() >= from &&
    		((*ci)->getStartTime() <= from ||
    		 (clefKeySegment &&
    		  (*ci)->getStartTime() < clefKeySegment->getStartTime()))) {
     
    		clefKeySegment = *ci;
    	    }
    	}
     
    	if (!clefKeySegment) return;
        }
    */

    if (level == RecalcWhole) {

        m_chordSegment->clear();

        timeT clefKeyTime = m_currentSegment->getStartTime();
        //(from < m_currentSegment->getStartTime() ?
        //	        m_currentSegment->getStartTime() : from);

        Clef clef = m_currentSegment->getClefAtTime(clefKeyTime);
        m_chordSegment->insert(clef.getAsEvent( -1));

        ::Rosegarden::Key key = m_currentSegment->getKeyAtTime(clefKeyTime);
        m_chordSegment->insert(key.getAsEvent( -1));

        from = 0;
        to = 0;

    } else {
        Segment::iterator i = m_chordSegment->findTime(from);
        Segment::iterator j = m_chordSegment->findTime(to);
        m_chordSegment->erase(i, j);
    }

    SegmentSelection selection;
    for (SegmentRefreshMap::iterator si = m_segments.begin(); si != m_segments.end();
            ++si) {
        selection.insert(si->first);
    }

    CompositionTimeSliceAdapter adapter(m_composition, &selection, from, to);
    AnalysisHelper helper;
    helper.labelChords(adapter, *m_chordSegment, m_composition->getNotationQuantizer());
}

void
ChordNameRuler::paintEvent(QPaintEvent* e)
{
    if (!m_composition || !m_ready)
        return ;

    NOTATION_DEBUG << "*** Chord Name Ruler: paintEvent" << endl;

    Profiler profiler1("ChordNameRuler::paintEvent (whole)");

    QPainter paint(this);
    paint.setPen(GUIPalette::getColour(GUIPalette::ChordNameRulerForeground));

    paint.setClipRegion(e->region());
    paint.setClipRect(e->rect().normalize());

    QRect clipRect = paint.clipRegion().boundingRect();

    timeT from = m_rulerScale->getTimeForX
                 (clipRect.x() - m_currentXOffset - m_xorigin - 50);
    timeT to = m_rulerScale->getTimeForX
               (clipRect.x() + clipRect.width() - m_currentXOffset - m_xorigin + 50);

    recalculate(from, to);

    if (!m_chordSegment)
        return ;

    Profiler profiler2("ChordNameRuler::paintEvent (paint)");

    QRect boundsForHeight = m_fontMetrics.boundingRect("^j|lM");
    int fontHeight = boundsForHeight.height();
    int textY = (height() - 6) / 2 + fontHeight / 2;

    double prevX = 0;
    timeT keyAt = from - 1;
    std::string keyText;

    NOTATION_DEBUG << "*** Chord Name Ruler: paint " << from << " -> " << to << endl;

    for (Segment::iterator i = m_chordSegment->findTime(from);
            i != m_chordSegment->findTime(to); ++i) {

        NOTATION_DEBUG << "type " << (*i)->getType() << " at " << (*i)->getAbsoluteTime()
        << endl;

        if (!(*i)->isa(Text::EventType) ||
                !(*i)->has(Text::TextPropertyName) ||
                !(*i)->has(Text::TextTypePropertyName))
            continue;

        std::string text((*i)->get
                         <String>(Text::TextPropertyName));

        if ((*i)->get
                <String>(Text::TextTypePropertyName) == Text::KeyName) {
            timeT myTime = (*i)->getAbsoluteTime();
            if (myTime == keyAt && text == keyText)
                continue;
            else {
                keyAt = myTime;
                keyText = text;
            }
        }

        double x = m_rulerScale->getXForTime((*i)->getAbsoluteTime());
        (*i)->set
        <Int>(TEXT_FORMAL_X, (long)x);

        QRect textBounds = m_fontMetrics.boundingRect(strtoqstr(text));
        int width = textBounds.width();

        x -= width / 2;
        if (prevX >= x - 3)
            x = prevX + 3;
        (*i)->set
        <Int>(TEXT_ACTUAL_X, long(x));
        prevX = x + width;
    }

    for (Segment::iterator i = m_chordSegment->findTime(from);
            i != m_chordSegment->findTime(to); ++i) {

        if (!(*i)->isa(Text::EventType))
            continue;
        std::string text((*i)->get
                         <String>(Text::TextPropertyName));
        std::string type((*i)->get
                         <String>(Text::TextTypePropertyName));

        if (!(*i)->has(TEXT_FORMAL_X))
            continue;

        long formalX = (*i)->get
                       <Int>(TEXT_FORMAL_X);
        long actualX = (*i)->get
                       <Int>(TEXT_ACTUAL_X);

        formalX += m_currentXOffset + long(m_xorigin);
        actualX += m_currentXOffset + long(m_xorigin);

        paint.drawLine(formalX, height() - 4, formalX, height());

        if (type == Text::KeyName) {
            paint.setFont(m_boldFont);
        } else {
            paint.setFont(m_font);
        }

        paint.drawText(actualX, textY, strtoqstr(text));
    }
}

}
#include "ChordNameRuler.moc"