Examples with Measure com.xenoage.zong.core.music.Measure used on opensource projects

Example 1 with Measure

use of com.xenoage.zong.core.music.Measure in project Zong by Xenoage.

the class ColumnSpacer method compute.

/**
 * Computes a {@link ColumnSpacing} from a measure column.
 * @param context         the current context, with the current {@link MP} and precomputed
 *                        element {@link Notation}s
 * @param createLeading   true, if a leading spacing has to be created, otherwise false
 * @param notations       the precomputed notations of the measure and voice elements
 */
public ColumnSpacing compute(Context context, boolean createLeading, Notations notations) {
    context.saveMp();
    int measureIndex = context.mp.measure;
    Column column = context.score.getColumn(measureIndex);
    ColumnHeader columnHeader = context.score.getHeader().getColumnHeader(measureIndex);
    // compute the optimal spacings for each voice separately
    List<List<VoiceSpacing>> voiceSpacingsByStaff = alist();
    for (int iStaff : range(column)) {
        List<VoiceSpacing> vss = alist();
        Measure measure = column.get(iStaff);
        for (Voice voice : measure.getVoices()) {
            context.mp = MP.atVoice(iStaff, measureIndex, measure.getVoices().indexOf(voice));
            VoiceSpacing vs = singleVoiceSpacer.compute(context, notations);
            vss.add(vs);
        }
        voiceSpacingsByStaff.add(vss);
    }
    // compute the measure elements (like inner clefs) and accordingly updated voice spacings
    ArrayList<List<ElementSpacing>> optimalMeasureElementsSpacingsByStaff = alist();
    for (int iStaff : range(column)) {
        context.mp = MP.atMeasure(iStaff, measureIndex);
        List<ElementSpacing> measureSpacing = measureElementsSpacer.compute(context, createLeading, voiceSpacingsByStaff.get(iStaff), notations);
        optimalMeasureElementsSpacingsByStaff.add(measureSpacing);
    }
    // compute the common beat offsets of this measure column
    Fraction measureBeats = context.score.getMeasureBeats(measureIndex);
    VoiceSpacingsByStaff voiceSpacings = new VoiceSpacingsByStaff(voiceSpacingsByStaff);
    List<BeatOffset> beatOffsets = voicesBeatOffsetter.compute(voiceSpacings.getAll(), measureBeats, context.settings.offsetBeatsMinimal);
    // recompute beat offsets with respect to barlines
    BarlinesBeatOffsetter.Result offsets = barlinesBeatOffsetter.compute(beatOffsets, columnHeader, context.score.getMaxIS());
    beatOffsets = offsets.voiceElementOffsets;
    List<BeatOffset> barlineOffsets = offsets.barlineOffsets;
    // compute the spacings for the whole column, so that equal beats are aligned
    ArrayList<List<ElementSpacing>> alignedMeasureElementsSpacingsByStaff = alist();
    for (int iStaff : range(column)) {
        Measure measure = column.get(iStaff);
        // voice spacings
        for (int iVoice : range(measure.getVoices())) alignedVoicesSpacer.compute(voiceSpacings.get(iStaff, iVoice), beatOffsets);
        // measure elements, based on the aligned voice spacings
        context.mp = atMeasure(iStaff, measureIndex);
        alignedMeasureElementsSpacingsByStaff.add(measureElementsSpacer.compute(context, createLeading, voiceSpacings.getStaff(iStaff), notations));
    }
    // compute spacings for each staff
    List<MeasureSpacing> measureSpacings = alist(column.size());
    for (int iStaff : range(column)) {
        // create leading spacing, if needed
        LeadingSpacing leadingSpacing = null;
        if (createLeading) {
            context.mp = atBeat(iStaff, measureIndex, 0, Fraction.Companion.get_0());
            leadingSpacing = leadingSpacer.compute(context, notations);
        }
        // create measure spacing
        float interlineSpace = context.score.getInterlineSpace(iStaff);
        measureSpacings.add(new MeasureSpacing(atMeasure(iStaff, measureIndex), interlineSpace, voiceSpacings.getStaff(iStaff), alignedMeasureElementsSpacingsByStaff.get(iStaff), leadingSpacing));
    }
    context.restoreMp();
    return new ColumnSpacing(measureIndex, measureSpacings, beatOffsets, barlineOffsets);
}

Example 2 with Measure

use of com.xenoage.zong.core.music.Measure in project Zong by Xenoage.

the class ScoreTest method testMeasureElements.

private static <T> void testMeasureElements(List<Tuple2<MP, T>> expectedElements, Score score, BiFunction<Measure, Fraction, T> getElementAtBeat) {
    for (Tuple2<MP, T> expectedElement : expectedElements) {
        MP mp = expectedElement.get1();
        Measure measure = score.getMeasure(mp);
        T element = getElementAtBeat.apply(measure, mp.beat);
        assertNotNull("" + mp, element);
        assertEquals("" + mp, expectedElement.get2(), element);
    }
}

Example 3 with Measure

use of com.xenoage.zong.core.music.Measure in project Zong by Xenoage.

the class WedgeStamper method stampSystem.

/**
 * Creates all wedge stampings in the given system.
 * @param openWedges  input and output parameter: voltas, which are still open from the
 *                    last system. After the method returns, it contains the voltas which
 *                    are still open after this system
 */
public List<WedgeStamping> stampSystem(SystemSpacing system, Score score, StaffStampings staffStampings, OpenWedges openWedges) {
    List<WedgeStamping> ret = alist();
    // find new wedges beginning in this staff
    for (int iStaff : range(score.getStavesCount())) {
        Staff staff = score.getStaff(iStaff);
        for (int iMeasure : system.getMeasures()) {
            Measure measure = staff.getMeasure(iMeasure);
            for (BeatE<Direction> dir : measure.getDirections()) {
                if (dir.getElement() instanceof Wedge) {
                    Wedge wedge = (Wedge) dir.getElement();
                    // if the position of the end element is known
                    if (wedge.getWedgeEnd().getMP() != null)
                        openWedges.wedges.add(new ContinuedWedge((Wedge) dir.getElement()));
                }
            }
        }
    }
    // draw wedges in the cache, and remove them if closed in this system
    for (Iterator<ContinuedWedge> itW = openWedges.wedges.iterator(); itW.hasNext(); ) {
        ContinuedWedge wedge = itW.next();
        ret.add(stamp(wedge.element, staffStampings.get(system.getSystemIndexInFrame(), wedge.element.getMP().staff)));
        if (MP.getMP(wedge.element.getWedgeEnd()).measure <= system.getEndMeasure()) {
            // wedge is closed
            itW.remove();
        }
    }
    return ret;
}

Example 4 with Measure

use of com.xenoage.zong.core.music.Measure in project Zong by Xenoage.

the class InstrumentsReaderTest method testInstrumentChanges.

/**
 * Read the file "InstrumentChanges.xml".
 * It must contain 3 instruments, namely a Clarinet in B, an Alto Sax in Eb
 * and a Trombone in C. Check also the transpositons and see if the instrument
 * changes happen at the right positions.
 */
@Test
public void testInstrumentChanges() {
    Score score = MusicXmlScoreFileInputTest.loadXMLTestScore("InstrumentChanges.xml");
    Part part = score.getStavesList().getParts().get(0);
    assertEquals(3, part.getInstruments().size());
    // clarinet
    PitchedInstrument instr0 = (PitchedInstrument) part.getInstruments().get(0);
    assertEquals("Clarinet in Bb", instr0.getName());
    assertEquals(new Integer(-1), instr0.getTranspose().getDiatonic());
    assertEquals(-2, instr0.getTranspose().getChromatic());
    // altosax
    PitchedInstrument instr1 = (PitchedInstrument) part.getInstruments().get(1);
    assertEquals("Alto Saxophone", instr1.getName());
    assertEquals(new Integer(-5), instr1.getTranspose().getDiatonic());
    assertEquals(-9, instr1.getTranspose().getChromatic());
    // trombone
    PitchedInstrument instr2 = (PitchedInstrument) part.getInstruments().get(2);
    assertEquals("Trombone", instr2.getName());
    assertEquals(new Integer(0), instr2.getTranspose().getDiatonic());
    assertEquals(0, instr2.getTranspose().getChromatic());
    // instrument changes in measures 1, 2 and 3
    Measure measure = score.getMeasure(atMeasure(0, 1));
    assertEquals(instr1, getInstrumentChangeAtBeat0(measure).getInstrument());
    measure = score.getMeasure(atMeasure(0, 2));
    assertEquals(instr2, getInstrumentChangeAtBeat0(measure).getInstrument());
    measure = score.getMeasure(atMeasure(0, 3));
    assertEquals(instr0, getInstrumentChangeAtBeat0(measure).getInstrument());
}

Example 5 with Measure

use of com.xenoage.zong.core.music.Measure in project Zong by Xenoage.

the class Test01a method test.

@ToDo("the editiorial sharp (sharp in parenthesis) in the last measure is not supported yet")
@Test
public void test() {
    Pitch[] expectedPitches = getExpectedPitches();
    Staff staff = getFirstStaff();
    assertEquals(26, staff.getMeasures().size());
    int iPitch = 0;
    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());
            }
        }
    }
    assertEquals("not all notes found", expectedPitches.length, iPitch);
}