qt-everywhere-src-5.14.1/qtlottie/src/bodymovin/bmstroke.cpp

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** This file is part of the lottie-qt module of the Qt Toolkit.
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#include "bmstroke_p.h"

#include <QLoggingCategory>

#include "bmconstants_p.h"

QT_BEGIN_NAMESPACE

BMStroke::BMStroke(const BMStroke &other)
    : BMShape(other)
{
    m_opacity = other.m_opacity;
    m_width = other.m_width;
    m_color = other.m_color;
    m_capStyle = other.m_capStyle;
    m_joinStyle = other.m_joinStyle;
    m_miterLimit = other.m_miterLimit;
}

BMStroke::BMStroke(const QJsonObject &definition, BMBase *parent)
{
    setParent(parent);

    BMBase::parse(definition);
    if (m_hidden)
        return;

    qCDebug(lcLottieQtBodymovinParser) << "BMStroke::BMStroke()" << m_name;

    int lineCap = definition.value(QLatin1String("lc")).toVariant().toInt();
    switch (lineCap) {
    case 1:
        m_capStyle = Qt::FlatCap;
        break;
    case 2:
        m_capStyle = Qt::RoundCap;
        break;
    case 3:
        m_capStyle = Qt::SquareCap;
        break;
    default:
        qCDebug(lcLottieQtBodymovinParser) << "Unknown line cap style in BMStroke";
    }

    int lineJoin = definition.value(QLatin1String("lj")).toVariant().toInt();
    switch (lineJoin) {
    case 1:
        m_joinStyle = Qt::MiterJoin;
        m_miterLimit = definition.value(QLatin1String("ml")).toVariant().toReal();
        break;
    case 2:
        m_joinStyle = Qt::RoundJoin;
        break;
    case 3:
        m_joinStyle = Qt::BevelJoin;
        break;
    default:
        qCDebug(lcLottieQtBodymovinParser) << "Unknown line join style in BMStroke";
    }

    QJsonObject opacity = definition.value(QLatin1String("o")).toObject();
    opacity = resolveExpression(opacity);
    m_opacity.construct(opacity);

    QJsonObject width = definition.value(QLatin1String("w")).toObject();
    width = resolveExpression(width);
    m_width.construct(width);

    QJsonObject color = definition.value(QLatin1String("c")).toObject();
    color = resolveExpression(color);
    m_color.construct(color);
}

BMBase *BMStroke::clone() const
{
    return new BMStroke(*this);
}

void BMStroke::updateProperties(int frame)
{
    m_opacity.update(frame);
    m_width.update(frame);
    m_color.update(frame);
}

void BMStroke::render(LottieRenderer &renderer) const
{
    renderer.render(*this);
}

QPen BMStroke::pen() const
{
    qreal width = m_width.value();
    if (qFuzzyIsNull(width))
        return QPen(Qt::NoPen);
    QPen pen;
    pen.setColor(getColor());
    pen.setWidthF(width);
    pen.setCapStyle(m_capStyle);
    pen.setJoinStyle(m_joinStyle);
    pen.setMiterLimit(m_miterLimit);
    return pen;
}

QColor BMStroke::getColor() const
{
    QVector4D cVec = m_color.value();
    QColor color;
    qreal r = static_cast<qreal>(cVec.x());
    qreal g = static_cast<qreal>(cVec.y());
    qreal b = static_cast<qreal>(cVec.z());
    qreal a = static_cast<qreal>(cVec.w());
    color.setRgbF(r, g, b, a);
    return color;
}

qreal BMStroke::opacity() const
{
    return m_opacity.value();
}

QT_END_NAMESPACE