Beispiel #1
0
SegmentList SegmentList::clone() const
      {
      SegmentList dl;
      Segment* s = _first;
      for (int i = 0; i < _size; ++i) {
            Segment* ns = s->clone();
            dl.push_back(ns);
            s = s->next();
            }
      dl.check();
      return dl;
      }
/// Initialize ExpandFigurationCommand
/// @author Tom Breton (Tehom)
void
ExpandFigurationCommand::initialise(SegmentSelection selection)
{
    FigurationVector figs;
    int figSourceID = -1;
    bool gotFigSource = false;

    RG_DEBUG << "Initializing ExpandFigurationCommand" << endl;

    // Update, because if we need new IDs they mustn't duplicate old
    // IDs, so we must be up to date on what IDs are there.
    SegmentFigData::SegmentFigDataMap segMap = 
        SegmentFigData::getInvolvedSegments(true, this);
    for (SegmentSelection::iterator i = selection.begin();
         i != selection.end();
         ++i) {
        SegmentFigData& segmentData =
            SegmentFigData::findOrAdd(segMap, *i);
        
        // If it's used here, it's not uninvolved, so unless it's a
        // figuration, it's a chord source.
        if (segmentData.isa(SegmentFigData::Uninvolved)) {
            segmentData.convertType(SegmentFigData::ChordSource);
        }
        segmentData.addTagIfNeeded(*i, this);
        if (gotFigSource ||
            !segmentData.isa(SegmentFigData::FigurationSource))
            { continue; }

        figSourceID = segmentData.getID();
        figs = FigurationSourceMap::getFigurations(*i);
        if (!figs.empty())
            { gotFigSource = true; }
    }
    // If we didn't find a real figuration, there's nothing to do.
    if (!gotFigSource) { return; }

    SourcedFiguration sourcedfigs(figSourceID, figs);
    
    // Expand figuration in each segment in selection except the
    // figuration segment itself.
    for (SegmentSelection::iterator i = selection.begin();
         i != selection.end();
         ++i) {
        Segment *s = (*i);
        SegmentFigData::SegmentFigDataMap::iterator it = segMap.find(*i);
        Q_ASSERT_X(it != segMap.end(),
                   "ExpandFigurationCommand::initialise",
                   "didn't find the segment");
        SegmentFigData& segmentData = it->second;
        
        if (!segmentData.isa(SegmentFigData::ChordSource))
            { continue; }

        // Make a target segment
        Segment *target = s->clone(false);
        // Temporarily attach it to composition so that expand can
        // work.
        m_composition->weakAddSegment(target);

        target->clear();
        target->fillWithRests(s->getEndTime());
        SegmentFigData::addTag(target, this, SegmentID::Target);
        m_newSegments.insert(target);

        /** Add notes to target segment **/
        for (Segment::iterator e = s->begin();
             e != s->end();
             ++e) {
            // Non-notes they don't imply there's a chord here.
            // We add them to target segment in case they are
            // clefs or key changes.
            if ((*e)->isa(SegmentID::EventType)) {
                continue;
            }
            if (!(*e)->isa(Note::EventType)) {
                target->insert(new Event(**e));
            }
        }


        // rawStartTime is the apparent start time before we take bars
        // into account.  We step it along the composition, finding
        // valid places to expand.  Specifically, on bar lines not
        // already part of an expansion.
        timeT rawStartTime = s->getStartTime();
        while (1) {
            timeT figurationStartTime = rawStartTimeToExact(rawStartTime);

            if (rawStartTime >= s->getEndTime())
                { break; }

            timeT timePastFiguration =
                SegmentFigData::expand(sourcedfigs,
                                       ChordSegment(s, segmentData.getID()),
                                       target, figurationStartTime);

            // If we didn't expand, ensure we don't try endlessly at
            // the same place.
            if (timePastFiguration == figurationStartTime) {
                ++timePastFiguration;
            }
            rawStartTime = timePastFiguration;
        }

        // Detach from composition, because SegmentInsertCommand does
        // the actual placing
        m_composition->weakDetachSegment(target);

        
        Command *c =
            new SegmentInsertCommand(m_composition, target, s->getTrack());
        addCommand(c);
    }

}