/** Reads the given MusicXML document and returns the score. */
public static Score read(
MxlScorePartwise doc, Score baseScore, ErrorProcessing err, boolean ignoreErrors) {
MusicReaderContext context =
new MusicReaderContext(baseScore, new MusicReaderSettings(err, ignoreErrors));
// read the parts
int staffIndexOffset = 0;
It<MxlPart> mxlParts = it(doc.getParts());
for (MxlPart mxlPart : mxlParts) {
// clear part-dependent context values
int stavesCount =
baseScore.getStavesList().getParts().get(mxlParts.getIndex()).getStavesCount();
context = context.beginNewPart(mxlParts.getIndex());
staffIndexOffset += stavesCount;
// read the measures
It<MxlMeasure> mxlMeasures = it(mxlPart.getMeasures());
for (MxlMeasure mxlMeasure : mxlMeasures) {
try {
context = readMeasure(context, mxlMeasure, mxlMeasures.getIndex());
} catch (MusicReaderException ex) {
throw new RuntimeException("Error at " + ex.getContext().toString(), ex);
} catch (Exception ex) {
throw new RuntimeException("Error (roughly) around " + context.toString(), ex);
}
}
}
// go through the whole score, and fill empty measures (that means, measures where
// voice 0 has no single VoiceElement) with rests
Fraction measureDuration = fr(1, 4);
for (int iStaff = 0; iStaff < context.getScore().getStavesCount(); iStaff++) {
Staff staff = context.getScore().getStaff(atStaff(iStaff));
for (int iMeasure = 0; iMeasure < staff.getMeasures().size(); iMeasure++) {
Measure measure = staff.getMeasures().get(iMeasure);
Time newTime = context.getScore().getScoreHeader().getColumnHeader(iMeasure).getTime();
if (newTime != null) {
// time signature has changed
if (newTime instanceof NormalTime) {
measureDuration = ((NormalTime) newTime).getBeatsPerMeasure();
} else {
measureDuration = fr(1, 4); // default: 1/4
}
}
Voice voice0 = measure.getVoices().get(0);
if (voice0.isEmpty()) {
// TODO: "whole rests" or split. currently, also 3/4 rests are possible
context =
context.withScore(
ScoreController.writeVoiceElement(
context.getScore(), mp(iStaff, iMeasure, 0, _0), new Rest(measureDuration)));
}
}
}
return context.getScore();
}
@Test
public void test() {
Pitch[] expectedPitches = getExpectedPitches();
int iPitch = 0;
Staff staff = getFirstStaff();
for (int iM = 0; iM < staff.getMeasures().size(); iM++) {
Measure measure = staff.getMeasures().get(iM);
Voice voice = measure.getVoice(0);
for (VoiceElement e : voice.getElements()) {
if (e instanceof Chord) {
// check note and pitch
Chord chord = (Chord) e;
assertEquals(expectedPitches[iPitch++], chord.getNotes().get(0).getPitch());
}
}
}
// TODO - ignore this test, since MusicXML input file has a bug (only a single measure),
// so currently only the first measure is tested
// assertEquals("not all notes found", expectedPitches.length, iPitch);
}
/**
* Creates a score with a single staff, two measures with each two voices, with key changes and
* chords with accidentals.
*/
private Score createTestScoreAccidentals() {
// create two measures with two voices:
// measure 0 | measure 1
// beat: 0 1 | 0 1
// key: Gmaj | *Fmaj Cmaj
// voice 0: C4 | F#4 Bb4 Bb4
// voice 1: Fnat4 | Bb4 F#4 F#4
// (*) is a private key (not in measure column)
Score score = ScoreFactory.create1Staff();
new MeasureAdd(score, 1).execute();
new VoiceAdd(score.getMeasure(atMeasure(0, 0)), 1).execute();
new VoiceAdd(score.getMeasure(atMeasure(0, 1)), 1).execute();
// keys
new ColumnElementWrite(
new TraditionalKey(1, Mode.Major), score.getColumnHeader(0), fr(0, 4), null)
.execute();
new MeasureElementWrite(
new TraditionalKey(-1, Mode.Major), score.getMeasure(atMeasure(0, 1)), fr(0, 4))
.execute();
new ColumnElementWrite(
new TraditionalKey(0, Mode.Major), score.getColumnHeader(1), fr(1, 4), null)
.execute();
// measure 0, voice 0
Voice voice = score.getVoice(MP.atVoice(0, 0, 0));
voice.addElement(chord(pi(0, 0, 4), fr(2, 4)));
// measure 1, voice 0
voice = score.getVoice(MP.atVoice(0, 1, 0));
voice.addElement(chord(pi(3, 1, 4), fr(1, 4)));
voice.addElement(chord(pi(6, -1, 4), fr(1, 8)));
voice.addElement(chord(pi(6, -1, 4), fr(1, 8)));
// measure 0, voice 1
voice = score.getVoice(MP.atVoice(0, 0, 1));
voice.addElement(chord(pi(3, 0, 4), fr(2, 4)));
// measure 1, voice 1
voice = score.getVoice(MP.atVoice(0, 1, 1));
voice.addElement(chord(pi(6, -1, 4), fr(1, 4)));
voice.addElement(chord(pi(3, 1, 4), fr(1, 8)));
voice.addElement(chord(pi(3, 1, 4), fr(1, 8)));
return score;
}
