Examples with SimpleSpacing com.xenoage.zong.musiclayout.spacing.SimpleSpacing used on opensource projects

Example 1 with SimpleSpacing

use of com.xenoage.zong.musiclayout.spacing.SimpleSpacing in project Zong by Xenoage.

the class MeasureElementsSpacer method compute.

List<ElementSpacing> compute(BeatEList<Clef> clefs, @MaybeEmpty BeatEList<Key> keys, @MaybeNull TimeSignature time, boolean existsLeadingSpacing, List<VoiceSpacing> voiceSpacings, int staff, Notations notations, LayoutSettings layoutSettings) {
    Key key0 = null;
    if (keys.size() > 0 && keys.getFirst().getBeat().equals(Companion.get_0()))
        key0 = keys.getFirst().getElement();
    if (key0 == null && time == null && (clefs == null || clefs.size() == 0)) {
        // nothing to do
        return empty;
    }
    ArrayList<ElementSpacing> ret = alist();
    float startOffset = layoutSettings.offsetMeasureStart;
    // key and time
    // ************
    boolean isKey = !existsLeadingSpacing && key0 instanceof TraditionalKey;
    boolean isTime = time != null;
    if (isKey || isTime) {
        float currentOffset = startOffset;
        // ***
        if (isKey) {
            Notation keyNotation = notations.get(key0, staff);
            ret.add(new SimpleSpacing(keyNotation, Companion.get_0(), startOffset));
            currentOffset += keyNotation.getWidth().getUsedWidth();
        }
        // ****
        if (time != null) {
            Notation timeNotation = notations.get(time, staff);
            ret.add(new SimpleSpacing(timeNotation, Companion.get_0(), currentOffset + timeNotation.getWidth().symbolWidth / 2));
            currentOffset += timeNotation.getWidth().getUsedWidth();
        }
        // move voice elements, if not enough space before first voice element
        ElementSpacing leftSE = getFirstElementSpacing(voiceSpacings);
        if (leftSE != null) {
            float leftSEx = getLeftX(leftSE);
            // existing space
            float ES = leftSEx;
            // additional needed space
            float AS = currentOffset - ES;
            if (AS > 0) {
                shift(voiceSpacings, AS);
                startOffset += AS;
            }
        }
    }
    // voice 2:       1             o
    if (clefs != null) {
        for (BeatE<Clef> ME : clefs) {
            Fraction MEb = ME.getBeat();
            Notation MEnotation = notations.get(ME.getElement());
            float MEwidth = MEnotation.getWidth().getWidth();
            // if there is a leading spacing, ignore elements at beat 0
            if (existsLeadingSpacing && !MEb.isGreater0())
                continue;
            // find VE1 and VE2 for the current element
            ElementSpacing[] ses = getNearestSpacingElements(MEb, voiceSpacings);
            ElementSpacing VE1 = ses[0], VE2 = ses[1];
            // if VE1 is unknown, use startOffset. if VE2 is unknown, ignore this element
            float VE1x = (VE1 != null ? getRightX(VE1) : startOffset);
            if (VE2 == null)
                continue;
            float VE2x = getLeftX(VE2);
            // existing space
            float ES = VE2x - VE1x - 2 * layoutSettings.spacings.widthDistanceMin;
            if (ES < MEwidth) {
                // additional space needed
                float AS = MEwidth - ES;
                // move all elements at or after ME.beat
                VE2x += AS;
                shiftAfterBeat(voiceSpacings, AS, MEb);
            }
            // add measure element
            float MEx = VE2x - layoutSettings.spacings.widthDistanceMin - MEwidth / 2;
            ret.add(new SimpleSpacing(MEnotation, ME.getBeat(), MEx));
        }
    }
    ret.trimToSize();
    return ret;
}

Example 2 with SimpleSpacing

use of com.xenoage.zong.musiclayout.spacing.SimpleSpacing in project Zong by Xenoage.

the class LeadingSpacer method compute.

/**
 * Computes the {@link LeadingSpacing} for the current measure.
 */
public LeadingSpacing compute(Context context, Notations notations) {
    float xOffset = context.settings.offsetMeasureStart;
    boolean useKey = false;
    MusicContext musicContext = context.getMusicContext(At, null);
    Key key = musicContext.getKey();
    if (key instanceof TraditionalKey) {
        useKey = true;
    }
    List<ElementSpacing> elements = alist(useKey ? 2 : 1);
    // it is not the same element instance, but has the same meaning
    Clef clef = new Clef(musicContext.getClef());
    ClefNotation clefNotation = new ClefNotation(clef, new ElementWidth(0, context.settings.spacings.widthClef, 0), musicContext.getClef().getLp(), 1);
    notations.add(clefNotation);
    xOffset += context.settings.spacings.widthClef / 2;
    elements.add(new SimpleSpacing(clefNotation, Companion.fr(0), xOffset));
    xOffset += context.settings.spacings.widthClef / 2;
    if (useKey) {
        TraditionalKey tkey = (TraditionalKey) key;
        xOffset += context.settings.spacings.widthDistanceMin;
        // it is not the same element instance, but has the same meaning
        TraditionalKey tradKey = new TraditionalKey(tkey.getFifths(), tkey.getMode());
        TraditionalKeyNotation keyNotation = traditionalKeyNotator.compute(tradKey, context);
        notations.add(keyNotation);
        elements.add(new SimpleSpacing(keyNotation, Companion.fr(0), xOffset));
        xOffset += keyNotation.getWidth().getWidth();
    }
    return new LeadingSpacing(elements, xOffset);
}