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

Example 11 with VoiceElement

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

the class SingleVoiceSpacer method compute.

VoiceSpacing compute(Voice voice, float interlineSpace, Fraction measureBeats, int staffLinesCount, Notations notations, LayoutSettings layoutSettings) {
    LinkedList<ElementSpacing> ret = llist();
    // special case: no elements in the measure.
    if (voice.getElements().size() == 0) {
        return new VoiceSpacing(voice, interlineSpace, alist((ElementSpacing) new BorderSpacing(Fraction.Companion.get_0(), 0), new BorderSpacing(measureBeats, layoutSettings.spacings.widthMeasureEmpty)));
    }
    // we compute the spacings in reverse order. this is easier, since grace chords
    // use shared space when possible, but are aligned to the right. so we begin
    // at position 0, and create the spacings in reverse direction (thus we find negative positions).
    // at the end, we shift the voice spacing to the right to be aligned at the left measure border,
    // which is position 0.
    // last symbol offset:
    // real offset where the last element's symbol started
    // since we do not know the right border yet, we start at 0
    float lastSymbolOffset = 0;
    // front gap offset:
    // offset where the last element (including front gap) started.
    float lastFrontGapOffset = lastSymbolOffset;
    // last full element offset:
    // lastSymbolOffset of the last full (non-grace) element
    float lastFullSymbolOffset = lastSymbolOffset;
    // at last beat
    Fraction curBeat = voice.getFilledBeats();
    ret.addFirst(new BorderSpacing(curBeat, lastFrontGapOffset));
    // iterate through the elements in reverse order
    for (VoiceElement element : Companion.reverseIt(voice.getElements())) {
        // get the notation
        Notation notation = notations.get(element);
        if (notation == null)
            throw new IllegalStateException("No notation for element " + element);
        // get the width of the element (front gap, symbol's width, rear gap, lyric's width)
        ElementWidth elementWidth = notation.getWidth();
        // add spacing for voice element
        float symbolOffset;
        boolean grace = !element.getDuration().isGreater0();
        if (!grace) {
            // full element
            // share this rear gap and the front gap of the following
            // element + the space of following grace elements, when possible
            // (but use at least minimal distance)
            symbolOffset = Math.min(lastFrontGapOffset - layoutSettings.spacings.widthDistanceMin, lastFullSymbolOffset - elementWidth.rearGap) - elementWidth.symbolWidth;
            lastFullSymbolOffset = symbolOffset;
            // update beat cursor
            curBeat = curBeat.sub(element.getDuration());
        } else {
            // grace element
            // share this rear gap and the front gap of the following element, when possible
            symbolOffset = Math.min(lastFrontGapOffset, lastSymbolOffset - elementWidth.rearGap) - elementWidth.symbolWidth;
        }
        ElementSpacing elementSpacing = null;
        if (notation instanceof RestNotation) {
            // rest spacing
            elementSpacing = restSpacer.compute((RestNotation) notation, curBeat, symbolOffset, staffLinesCount);
        } else {
            // chord spacing
            elementSpacing = new ChordSpacing((ChordNotation) notation, curBeat, symbolOffset);
        }
        ret.addFirst(elementSpacing);
        lastFrontGapOffset = symbolOffset - elementWidth.frontGap;
        lastSymbolOffset = symbolOffset;
    }
    // shift spacings to the right
    float shift = (-lastFrontGapOffset) + layoutSettings.offsetMeasureStart;
    for (ElementSpacing e : ret) e.xIs += shift;
    return new VoiceSpacing(voice, interlineSpace, ilist(ret));
}

Example 12 with VoiceElement

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

the class VoicesBeatOffsetterTest method createVoiceSpacings.

/**
 * Create {@link VoiceSpacing}s for the first measure column
 * of the given {@link Score}.
 */
private LinkedList<VoiceSpacing> createVoiceSpacings(Score score) {
    LinkedList<VoiceSpacing> ret = new LinkedList<>();
    for (int iStaff : range(0, score.getStavesCount() - 1)) {
        Measure measure = score.getMeasure(atMeasure(iStaff, 0));
        for (Voice voice : measure.getVoices()) {
            Fraction beat = Companion.fr(0);
            ArrayList<ElementSpacing> se = alist();
            float offset = 0;
            for (VoiceElement e : voice.getElements()) {
                // compute width
                float width = 0;
                if (e.getDuration().equals(Companion.get_0()))
                    width = width_grace;
                else if (e.getDuration().equals(dur_1_8))
                    width = width_1_8;
                else if (e.getDuration().equals(dur_1_6))
                    width = width_1_6;
                else if (e.getDuration().equals(dur_1_4))
                    width = width_1_4;
                else if (e.getDuration().equals(dur_3_8))
                    width = width_3_8;
                else if (e.getDuration().equals(dur_1_2))
                    width = width_1_2;
                else if (e.getDuration().equals(dur_1_1))
                    width = width_1_1;
                // create spacing element with offset
                se.add(new ChordSpacing(new ChordNotation((Chord) e), beat, offset));
                beat = beat.add(e.getDuration());
                offset += width;
            }
            se.add(new BorderSpacing(beat, offset));
            ret.add(new VoiceSpacing(voice, score.getFormat().getInterlineSpace(), se));
        }
    }
    return ret;
}

Example 13 with VoiceElement

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

the class SingleVoiceSpacerTest method testGrace1.

/**
 * Computes a voice spacing with grace notes,
 * where the element before the grace notes has enough empty rear space
 * to take all the grace notes.
 * <pre>
 * Single elements: [-r1------------][g1][g2][--r4--]
 * Combined:        --r1----~g1~g2~~~r4---
 * </pre> (~: area used by two elements)
 */
@Test
public void testGrace1() {
    // create voice and notations
    Voice voice = new Voice(alist((VoiceElement) r1, g1, g2, r4));
    Notations notations = new Notations();
    notations.add(new RestNotation(r1, new ElementWidth(2, 2, 13), null));
    notations.add(new ChordNotation(g1, new ElementWidth(1, 2, 1)));
    notations.add(new ChordNotation(g2, new ElementWidth(1, 2, 1)));
    notations.add(new RestNotation(r4, new ElementWidth(3, 2, 3), null));
    // compute spacing
    VoiceSpacing vs = testee.compute(voice, 300f, Companion.fr(4, 4), 5, notations, layoutSettings);
    // check spacing
    ElementSpacing[] ses = vs.elements.toArray(new ElementSpacing[0]);
    ;
    float s = layoutSettings.offsetMeasureStart;
    assertEquals(5, ses.length);
    assertEquals(s + 2, ses[0].xIs, DELTA_FLOAT);
    assertEquals(s + 9, ses[1].xIs, DELTA_FLOAT);
    assertEquals(s + 12, ses[2].xIs, DELTA_FLOAT);
    assertEquals(s + 17, ses[3].xIs, DELTA_FLOAT);
    assertEquals(s + 22, ses[4].xIs, DELTA_FLOAT);
    // check beats
    assertEquals(Companion.fr(0, 8), ses[0].beat);
    assertEquals(Companion.fr(2, 8), ses[1].beat);
    assertEquals(Companion.fr(2, 8), ses[2].beat);
    assertEquals(Companion.fr(2, 8), ses[3].beat);
    assertEquals(Companion.fr(6, 8), ses[4].beat);
}

Example 14 with VoiceElement

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

the class SingleVoiceSpacerTest method testGrace3.

/**
 * Computes a voice spacing with grace notes,
 * where the element before the grace notes has not enough empty rear space
 * to take even a single grace notes.
 * <pre>
 * Single elements: [-r1--][g1][g2][--r4--]
 * Combined:        --r1_~g1~g2~~~r4---
 * </pre> (~: area used by two elements, _: minimal distance between elements)
 */
@Test
public void testGrace3() {
    // create voice and notations
    Voice voice = new Voice(alist((VoiceElement) r1, g1, g2, r4));
    Notations notations = new Notations();
    notations.add(new RestNotation(r1, new ElementWidth(2, 2, 3), null));
    notations.add(new ChordNotation(g1, new ElementWidth(1, 2, 1)));
    notations.add(new ChordNotation(g2, new ElementWidth(1, 2, 1)));
    notations.add(new RestNotation(r4, new ElementWidth(3, 2, 3), null));
    // compute spacing
    VoiceSpacing vs = testee.compute(voice, 400f, Companion.fr(4, 4), 5, notations, layoutSettings);
    // check spacing
    ElementSpacing[] ses = vs.elements.toArray(new ElementSpacing[0]);
    ;
    float s = layoutSettings.offsetMeasureStart;
    float d = layoutSettings.spacings.widthDistanceMin;
    assertEquals(5, ses.length);
    assertEquals(s + 2, ses[0].xIs, DELTA_FLOAT);
    assertEquals(s + 5 + d, ses[1].xIs, DELTA_FLOAT);
    assertEquals(s + 8 + d, ses[2].xIs, DELTA_FLOAT);
    assertEquals(s + 13 + d, ses[3].xIs, DELTA_FLOAT);
    assertEquals(s + 18 + d, ses[4].xIs, DELTA_FLOAT);
    // check beats
    assertEquals(Companion.fr(0, 8), ses[0].beat);
    assertEquals(Companion.fr(2, 8), ses[1].beat);
    assertEquals(Companion.fr(2, 8), ses[2].beat);
    assertEquals(Companion.fr(2, 8), ses[3].beat);
    assertEquals(Companion.fr(6, 8), ses[4].beat);
}

Example 15 with VoiceElement

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

the class Test21f method test.

@Test
public void test() {
    Score score = getScore();
    // 1/4 with 3 notes at beat 0
    List<VoiceElement> e = score.getVoice(mp0).getElements();
    Chord chord = (Chord) e.get(0);
    assertEquals(3, chord.getNotes().size());
    assertEquals(Companion.fr(1, 4), chord.getDuration());
    // followed by 2 rests, 1/4 and 2/4
    assertEquals(Companion.fr(1, 4), ((Rest) e.get(1)).getDuration());
    assertEquals(Companion.fr(2, 4), ((Rest) e.get(2)).getDuration());
    // segno at beat 1/4 in column (moved to the end of the measure, since we accept no mid-measure segnos)
    Direction segno = (Segno) score.getColumnHeader(0).getNavigationOrigin();
    assertNotNull(segno);
    // dynamics p at beat 1/4 in measure
    Dynamic dynamics = (Dynamic) score.getMeasure(mp0).getDirections().get(Companion.fr(1, 4));
    assertNotNull(dynamics);
    assertEquals(DynamicValue.p, dynamics.getValue());
}