| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #include "qlottiegroup_p.h" |
| 5 | |
| 6 | #include <QJsonObject> |
| 7 | #include <QJsonArray> |
| 8 | |
| 9 | #include "qlottiebase_p.h" |
| 10 | #include "qlottieshape_p.h" |
| 11 | #include "qlottietrimpath_p.h" |
| 12 | #include "qlottiebasictransform_p.h" |
| 13 | |
| 14 | QT_BEGIN_NAMESPACE |
| 15 | |
| 16 | QLottieGroup::QLottieGroup(const QJsonObject &definition, QLottieBase *parent) |
| 17 | { |
| 18 | setParent(parent); |
| 19 | construct(definition); |
| 20 | } |
| 21 | |
| 22 | QLottieBase *QLottieGroup::clone() const |
| 23 | { |
| 24 | return new QLottieGroup(*this); |
| 25 | } |
| 26 | |
| 27 | void QLottieGroup::construct(const QJsonObject &definition) |
| 28 | { |
| 29 | QLottieBase::parse(definition); |
| 30 | if (m_hidden) |
| 31 | return; |
| 32 | |
| 33 | qCDebug(lcLottieQtLottieParser) << "QLottieGroup::construct()" |
| 34 | << m_name; |
| 35 | |
| 36 | QJsonArray groupItems = definition.value(key: QLatin1String("it")).toArray(); |
| 37 | QJsonArray::const_iterator itemIt = groupItems.constEnd(); |
| 38 | while (itemIt != groupItems.constBegin()) { |
| 39 | itemIt--; |
| 40 | QLottieShape *shape = QLottieShape::construct(definition: (*itemIt).toObject(), parent: this); |
| 41 | if (shape) { |
| 42 | // Transform affects how group contents are drawn. |
| 43 | // It must be traversed first when drawing |
| 44 | if (shape->type() == LOTTIE_SHAPE_TRANS_IX) |
| 45 | prependChild(child: shape); |
| 46 | else |
| 47 | appendChild(child: shape); |
| 48 | } |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | void QLottieGroup::updateProperties(int frame) |
| 53 | { |
| 54 | QLottieShape::updateProperties(frame); |
| 55 | |
| 56 | for (QLottieBase *child : children()) { |
| 57 | if (child->hidden()) |
| 58 | continue; |
| 59 | |
| 60 | QLottieShape *shape = static_cast<QLottieShape*>(child); |
| 61 | if (shape->type() == LOTTIE_SHAPE_TRIM_IX) { |
| 62 | QLottieTrimPath *trim = static_cast<QLottieTrimPath*>(shape); |
| 63 | if (m_appliedTrim) |
| 64 | m_appliedTrim->applyTrim(trimmer: *trim); |
| 65 | else |
| 66 | m_appliedTrim = trim; |
| 67 | } else if (m_appliedTrim && shape->acceptsTrim()) |
| 68 | shape->applyTrim(trimmer: *m_appliedTrim); |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | void QLottieGroup::render(QLottieRenderer &renderer) const |
| 73 | { |
| 74 | qCDebug(lcLottieQtLottieRender) << "Group:"<< name(); |
| 75 | |
| 76 | renderer.saveState(); |
| 77 | |
| 78 | renderer.render(*this); |
| 79 | |
| 80 | if (m_appliedTrim && !m_appliedTrim->hidden()) { |
| 81 | if (m_appliedTrim->isParallel()) |
| 82 | renderer.setTrimmingState(QLottieRenderer::Parallel); |
| 83 | else |
| 84 | renderer.setTrimmingState(QLottieRenderer::Sequential); |
| 85 | } else |
| 86 | renderer.setTrimmingState(QLottieRenderer::Off); |
| 87 | |
| 88 | for (QLottieBase *child : children()) { |
| 89 | if (child->hidden()) |
| 90 | continue; |
| 91 | child->render(renderer); |
| 92 | } |
| 93 | |
| 94 | if (m_appliedTrim && !m_appliedTrim->hidden() && !m_appliedTrim->isParallel()) |
| 95 | m_appliedTrim->render(renderer); |
| 96 | |
| 97 | renderer.finish(*this); |
| 98 | |
| 99 | renderer.restoreState(); |
| 100 | } |
| 101 | |
| 102 | bool QLottieGroup::acceptsTrim() const |
| 103 | { |
| 104 | return true; |
| 105 | } |
| 106 | |
| 107 | void QLottieGroup::applyTrim(const QLottieTrimPath &trimmer) |
| 108 | { |
| 109 | Q_ASSERT_X(!m_appliedTrim, "QLottieGroup", "A trim already assigned"); |
| 110 | |
| 111 | m_appliedTrim = static_cast<QLottieTrimPath*>(trimmer.clone()); |
| 112 | m_appliedTrim->setParent(parent()); |
| 113 | // Setting a friendly name helps in testing |
| 114 | m_appliedTrim->setName(QStringLiteral("Inherited from") + trimmer.name()); |
| 115 | |
| 116 | for (QLottieBase *child : children()) { |
| 117 | QLottieShape *shape = static_cast<QLottieShape*>(child); |
| 118 | if (shape->acceptsTrim()) |
| 119 | shape->applyTrim(trimmer: *m_appliedTrim); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | QT_END_NAMESPACE |
| 124 |