Examples with MusicReaderException com.xenoage.zong.io.musicxml.in.util.MusicReaderException used on opensource projects

Example 1 with MusicReaderException

use of com.xenoage.zong.io.musicxml.in.util.MusicReaderException in project Zong by Xenoage.

the class ScoreReader method readToScore.

public void readToScore(Score score, ErrorHandling errorHandling) {
    Context context = new Context(score, new ReaderSettings(errorHandling));
    // create the measures of the parts
    It<MxlPart> mxlParts = it(doc.getParts());
    for (MxlPart mxlPart : mxlParts) {
        // create measures
        execute(new MeasureAddUpTo(score, mxlPart.getMeasures().size()));
        // initialize each measure with a C clef
        Part part = score.getStavesList().getParts().get(mxlParts.getIndex());
        StavesRange stavesRange = score.getStavesList().getPartStaffIndices(part);
        for (int staff : stavesRange.getRange()) {
            execute(new MeasureElementWrite(new Clef(ClefType.Companion.getClefTreble()), score.getMeasure(MP.atMeasure(staff, 0)), Companion.get_0()));
        }
    }
    // write a 4/4 measure and C key signature in the first measure
    execute(new ColumnElementWrite(new TimeSignature(TimeType.Companion.getTime_4_4()), score.getColumnHeader(0), Companion.get_0(), null));
    execute(new ColumnElementWrite(new TraditionalKey(0), score.getColumnHeader(0), Companion.get_0(), null));
    // read the parts
    mxlParts = it(doc.getParts());
    for (MxlPart mxlPart : mxlParts) {
        // clear part-dependent context values
        context.beginNewPart(mxlParts.getIndex());
        // read the measures
        It<MxlMeasure> mxlMeasures = it(mxlPart.getMeasures());
        for (MxlMeasure mxlMeasure : mxlMeasures) {
            try {
                MeasureReader.readToContext(mxlMeasure, mxlMeasures.getIndex(), context);
            } catch (MusicReaderException ex) {
                throw new RuntimeException("Error at " + ex.getContext().toString(), ex);
            } catch (Exception ex) {
                throw new RuntimeException("Error (roughly) around " + context.toString(), ex);
            }
        }
    }
    // remove unclosed elements
    context.removeUnclosedWedges();
    // go through the whole score, and fill empty measures (that means, measures where
    // voice 0 has no single VoiceElement) with rests
    Fraction measureDuration = Companion.fr(1, 4);
    for (int iStaff = 0; iStaff < score.getStavesCount(); iStaff++) {
        Staff staff = score.getStaff(atStaff(iStaff));
        for (int iMeasure : range(staff.getMeasures())) {
            Measure measure = staff.getMeasure(iMeasure);
            TimeSignature newTime = score.getHeader().getColumnHeader(iMeasure).getTime();
            if (newTime != null) {
                // time signature has changed
                measureDuration = newTime.getType().getMeasureBeats();
            }
            if (measureDuration == null) {
                // senza misura
                // use whole rest
                measureDuration = Companion.fr(4, 4);
            }
            Voice voice0 = measure.getVoice(0);
            if (voice0.isEmpty()) {
                // TODO: "whole rests" or split. currently, also 3/4 rests are possible
                MP mp = atElement(iStaff, iMeasure, 0, 0);
                new VoiceElementWrite(score.getVoice(mp), mp, new Rest(measureDuration), null).execute();
            }
        }
    }
}

Example 2 with MusicReaderException

use of com.xenoage.zong.io.musicxml.in.util.MusicReaderException in project Zong by Xenoage.

the class ChordReader method readToContext.

/**
 * Reads the given chord, consisting of the given list of note elements,
 * including beams, notations and lyrics.
 * All but the first given note must have a chord-element inside.
 */
public void readToContext(Context context) {
    this.context = context;
    readFirstNote();
    // find staff
    // (not supported yet: multi-staff chords)
    staff = notNull(mxlFirstNote.getStaff(), 1) - 1;
    // find voice
    // TODO: might not exist! we have to use a helper algorithm to determine the right voice
    // then, see MusicReader class documentation.
    int staffVoice = 0;
    mxlVoice = null;
    MxlEditorialVoice editorialVoice = mxlFirstNote.getEditorialVoice();
    if (editorialVoice != null) {
        mxlVoice = editorialVoice.getVoice();
        if (mxlVoice != null) {
            try {
                staffVoice = context.getVoice(staff, mxlVoice);
            } catch (MusicReaderException ex) {
                context.reportError(ex.getMessage());
                return;
            }
        }
    }
    // write chord or rest
    boolean isWritten = false;
    if (chordOrRest != null)
        isWritten = context.writeVoiceElement(chordOrRest, staff, staffVoice);
    // more details for chord
    if (isWritten && chord != null) {
        // check if chord could be written. if not, return
        if (getMP(chord) == null)
            return;
        readFirstNoteNotations();
        readOtherChordNotes();
        readStem();
        readBeams();
        new LyricReader(mxlNotes).readToChord(chord);
    }
    if (chordOrRest != null)
        context.moveCursorForward(chordOrRest.getDuration());
}