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++ // Copyright (C) 2018 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++ #include "qlottiestroke_p.h"
++
++ #include <QLoggingCategory>
++
++ #include "qlottieconstants_p.h"
++
++ QT_BEGIN_NAMESPACE
++
++ QLottieStroke::QLottieStroke(const QLottieStroke &other)
++ : QLottieShape(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;
++ m_dashOffset = other.m_dashOffset;
++ m_dashPattern = other.m_dashPattern;
++ m_currentDashPattern = other.m_currentDashPattern;
++ m_isDashed = other.m_isDashed;
++ m_isDashPatternAnimated = other.m_isDashPatternAnimated;
++ }
++
++ QLottieStroke::QLottieStroke(QLottieBase *parent)
++ {
++ setParent(parent);
++ }
++
++ QLottieBase *QLottieStroke::clone() const
++ {
++ return new QLottieStroke(*this);
++ }
++
++ void QLottieStroke::updateProperties(int frame)
++ {
++ m_opacity.update(frame);
++ m_width.update(frame);
++ m_color.update(frame);
++ if (m_isDashed) {
++ m_dashOffset.update(frame);
++ if (m_isDashPatternAnimated) {
++ for (auto &element : m_dashPattern)
++ element.update(frame);
++ updateDashPattern();
++ }
++ }
++ }
++
++ void QLottieStroke::render(QLottieRenderer &renderer) const
++ {
++ renderer.render(*this);
++ }
++
++ int QLottieStroke::parse(const QJsonObject &definition)
++ {
++ QLottieBase::parse(definition);
++ if (m_hidden)
++ return 0;
++
++ qCDebug(lcLottieQtLottieParser) << "QLottieStroke::QLottieStroke()" << m_name;
++
++ if (!checkRequiredKeys(definition, "Stroke"_L1, { "o"_L1, "w"_L1 }, m_name))
++ return -1;
++
++ int lineCap = definition.value("lc"_L1).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(lcLottieQtLottieParser) << "Unknown line cap style in QLottieStroke";
++ }
++
++ int lineJoin = definition.value("lj"_L1).toVariant().toInt();
++ switch (lineJoin) {
++ case 1:
++ m_joinStyle = Qt::MiterJoin;
++ m_miterLimit = definition.value("ml"_L1).toVariant().toReal();
++ break;
++ case 2:
++ m_joinStyle = Qt::RoundJoin;
++ break;
++ case 3:
++ m_joinStyle = Qt::BevelJoin;
++ break;
++ default:
++ qCDebug(lcLottieQtLottieParser) << "Unknown line join style in QLottieStroke";
++ }
++
++ QJsonObject opacity = definition.value("o"_L1).toObject();
++ opacity = resolveExpression(opacity);
++ m_opacity.construct(opacity);
++
++ QJsonObject width = definition.value("w"_L1).toObject();
++ width = resolveExpression(width);
++ m_width.construct(width);
++
++ if (definition.contains("c"_L1)) {
++ QJsonObject color = definition.value("c"_L1).toObject();
++ color = resolveExpression(color);
++ m_color.construct(color);
++ }
++
++ const QJsonArray dashes = definition.value("d"_L1).toArray();
++ if (dashes.size()) {
++ for (const auto &element : dashes) {
++ QJsonObject dashSpec = element.toObject();
++ QJsonObject val = resolveExpression(dashSpec.value("v"_L1).toObject());
++ QString n = dashSpec.value("n"_L1).toString();
++
++ if (n == "o"_L1) {
++ m_dashOffset.construct(val);
++ } else if (n == "d"_L1 || n == "g"_L1) {
++ auto &newElement = m_dashPattern.emplaceBack();
++ newElement.construct(val);
++ if (newElement.isAnimated())
++ m_isDashPatternAnimated = true;
++ }
++ }
++
++ if (m_dashPattern.size() > 0) {
++ m_isDashed = true;
++ if (m_width.isAnimated())
++ m_isDashPatternAnimated = true;
++ updateDashPattern();
++ }
++ }
++
++ return 0;
++ }
++
++ QPen QLottieStroke::pen() const
++ {
++ qreal width = m_width.value();
++ if (qFuzzyIsNull(width) && !m_width.isAnimated())
++ return QPen(Qt::NoPen);
++ QPen pen;
++ pen.setColor(getColor());
++ pen.setWidthF(width);
++ pen.setCapStyle(m_capStyle);
++ pen.setJoinStyle(m_joinStyle);
++ pen.setMiterLimit(m_miterLimit);
++ if (m_isDashed) {
++ pen.setDashOffset(m_dashOffset.value() / width);
++ pen.setDashPattern(m_currentDashPattern);
++ }
++ return pen;
++ }
++
++ QColor QLottieStroke::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 QLottieStroke::opacity() const
++ {
++ return m_opacity.value();
++ }
++
++ void QLottieStroke::updateDashPattern()
++ {
++ m_currentDashPattern.clear();
++ const qreal strokeWidth = m_width.value();
++ if (qFuzzyIsNull(strokeWidth))
++ return;
++ bool isDash = true;
++ for (const auto &element : std::as_const(m_dashPattern)) {
++ qreal elementLength = element.value();
++ if (isDash && (m_capStyle != Qt::FlatCap) && (elementLength == 0))
++ elementLength = qreal(0.01); // pseudo 0-length line, to render line caps
++ m_currentDashPattern.append(elementLength / strokeWidth);
++ isDash = !isDash;
++ }
++ if (m_currentDashPattern.size() % 2)
++ m_currentDashPattern.append(m_currentDashPattern);
++ }
++
++ QT_END_NAMESPACE