/** 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, and a number of clefs, keys and chords. The
* score, the list of clefs and the list of keys is returned.
*/
private Tuple3<Score, List<Clef>, List<Key>> createTestScoreClefsKeys() {
// create two measures:
// clef-g, key-Gmaj, C#1/4, clef-f, Db1/4, clef-g, key-Fmaj, Cnat1/4 |
// C#1/4, key-Cmaj, clef-f, C2/4.
Score score = ScoreFactory.create1Staff();
new MeasureAdd(score, 1).execute();
List<Clef> clefs = new ArrayList<Clef>();
List<Key> keys = new ArrayList<Key>();
Clef c;
Key k;
// measure 0
Measure measure = score.getMeasure(atMeasure(0, 0));
new Clef(ClefType.clefTreble);
clefs.add(c = new Clef(ClefType.clefTreble));
new MeasureElementWrite(c, measure, fr(0, 4)).execute();
keys.add(k = new TraditionalKey(1, Mode.Major));
new MeasureElementWrite(k, measure, fr(0, 4)).execute();
new VoiceElementWrite(
measure.getVoice(0), atElement(0, 0, 0, 0), chord(pi(0, 1, 4), fr(1, 4)), null)
.execute();
clefs.add(c = new Clef(ClefType.clefBass));
new MeasureElementWrite(c, measure, fr(1, 4)).execute();
new VoiceElementWrite(
measure.getVoice(0), atElement(0, 0, 0, 1), chord(pi(1, -1, 4), fr(1, 4)), null)
.execute();
clefs.add(c = new Clef(ClefType.clefTreble));
new MeasureElementWrite(c, measure, fr(2, 4)).execute();
keys.add(k = new TraditionalKey(-1, Mode.Major));
new MeasureElementWrite(k, measure, fr(2, 4)).execute();
new VoiceElementWrite(
measure.getVoice(0), atElement(0, 0, 0, 2), chord(pi(0, 0, 4), fr(1, 4)), null)
.execute();
// measure 1
measure = score.getMeasure(atMeasure(0, 1));
new VoiceElementWrite(
measure.getVoice(0), atElement(0, 1, 0, 0), chord(pi(0, 1, 4), fr(1, 4)), null)
.execute();
keys.add(k = new TraditionalKey(0, Mode.Major));
new MeasureElementWrite(k, measure, fr(1, 4)).execute();
clefs.add(c = new Clef(ClefType.clefBass));
new MeasureElementWrite(c, measure, fr(1, 4)).execute();
new VoiceElementWrite(
measure.getVoice(0), atElement(0, 1, 0, 1), chord(pi(0, 0, 4), fr(2, 4)), null)
.execute();
return t3(score, clefs, keys);
}
