| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #include "bmgroup_p.h" |
| 5 | |
| 6 | #include <QJsonObject> |
| 7 | #include <QJsonArray> |
| 8 | |
| 9 | #include "bmbase_p.h" |
| 10 | #include "bmshape_p.h" |
| 11 | #include "bmtrimpath_p.h" |
| 12 | #include "bmbasictransform_p.h" |
| 13 | |
| 14 | QT_BEGIN_NAMESPACE |
| 15 | |
| 16 | BMGroup::BMGroup(const QJsonObject &definition, const QVersionNumber &version, BMBase *parent) |
| 17 | { |
| 18 | setParent(parent); |
| 19 | construct(definition, version); |
| 20 | } |
| 21 | |
| 22 | BMBase *BMGroup::clone() const |
| 23 | { |
| 24 | return new BMGroup(*this); |
| 25 | } |
| 26 | |
| 27 | void BMGroup::construct(const QJsonObject &definition, const QVersionNumber &version) |
| 28 | { |
| 29 | BMBase::parse(definition); |
| 30 | if (m_hidden) |
| 31 | return; |
| 32 | |
| 33 | qCDebug(lcLottieQtBodymovinParser) << "BMGroup::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 | BMShape *shape = BMShape::construct(definition: (*itemIt).toObject(), version, 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() == BM_SHAPE_TRANS_IX) |
| 45 | prependChild(child: shape); |
| 46 | else |
| 47 | appendChild(child: shape); |
| 48 | } |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | void BMGroup::updateProperties(int frame) |
| 53 | { |
| 54 | BMShape::updateProperties(frame); |
| 55 | |
| 56 | for (BMBase *child : children()) { |
| 57 | if (child->hidden()) |
| 58 | continue; |
| 59 | |
| 60 | BMShape *shape = static_cast<BMShape*>(child); |
| 61 | if (shape->type() == BM_SHAPE_TRIM_IX) { |
| 62 | BMTrimPath *trim = static_cast<BMTrimPath*>(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 BMGroup::render(LottieRenderer &renderer) const |
| 73 | { |
| 74 | qCDebug(lcLottieQtBodymovinRender) << "Group:"<< name(); |
| 75 | |
| 76 | renderer.saveState(); |
| 77 | |
| 78 | if (m_appliedTrim && !m_appliedTrim->hidden()) { |
| 79 | if (m_appliedTrim->simultaneous()) |
| 80 | renderer.setTrimmingState(LottieRenderer::Simultaneous); |
| 81 | else |
| 82 | renderer.setTrimmingState(LottieRenderer::Individual); |
| 83 | } else |
| 84 | renderer.setTrimmingState(LottieRenderer::Off); |
| 85 | |
| 86 | for (BMBase *child : children()) { |
| 87 | if (child->hidden()) |
| 88 | continue; |
| 89 | child->render(renderer); |
| 90 | } |
| 91 | |
| 92 | if (m_appliedTrim && !m_appliedTrim->hidden() |
| 93 | && !m_appliedTrim->simultaneous()) |
| 94 | m_appliedTrim->render(renderer); |
| 95 | |
| 96 | renderer.restoreState(); |
| 97 | } |
| 98 | |
| 99 | bool BMGroup::acceptsTrim() const |
| 100 | { |
| 101 | return true; |
| 102 | } |
| 103 | |
| 104 | void BMGroup::applyTrim(const BMTrimPath &trimmer) |
| 105 | { |
| 106 | Q_ASSERT_X(!m_appliedTrim, "BMGroup", "A trim already assigned"); |
| 107 | |
| 108 | m_appliedTrim = static_cast<BMTrimPath*>(trimmer.clone()); |
| 109 | // Setting a friendly name helps in testing |
| 110 | m_appliedTrim->setName(QStringLiteral("Inherited from") + trimmer.name()); |
| 111 | |
| 112 | for (BMBase *child : children()) { |
| 113 | BMShape *shape = static_cast<BMShape*>(child); |
| 114 | if (shape->acceptsTrim()) |
| 115 | shape->applyTrim(trimmer: *m_appliedTrim); |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | QT_END_NAMESPACE |
| 120 |