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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the lottie-qt module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
******************************************************************************/
#include "bmgroup_p.h"
#include <QJsonObject>
#include <QJsonArray>
#include "bmbase_p.h"
#include "bmshape_p.h"
#include "bmtrimpath_p.h"
#include "bmbasictransform_p.h"
QT_BEGIN_NAMESPACE
BMGroup::BMGroup(const QJsonObject &definition, const QVersionNumber &version, BMBase *parent)
{
setParent(parent);
construct(definition, version);
}
BMBase *BMGroup::clone() const
{
return new BMGroup(*this);
}
void BMGroup::construct(const QJsonObject &definition, const QVersionNumber &version)
{
BMBase::parse(definition);
if (m_hidden)
return;
qCDebug(lcLottieQtBodymovinParser) << "BMGroup::construct()"
<< m_name;
QJsonArray groupItems = definition.value(QLatin1String("it")).toArray();
QJsonArray::const_iterator itemIt = groupItems.constEnd();
while (itemIt != groupItems.constBegin()) {
itemIt--;
BMShape *shape = BMShape::construct((*itemIt).toObject(), version, this);
if (shape) {
// Transform affects how group contents are drawn.
// It must be traversed first when drawing
if (shape->type() == BM_SHAPE_TRANS_IX)
prependChild(shape);
else
appendChild(shape);
}
}
}
void BMGroup::updateProperties(int frame)
{
BMShape::updateProperties(frame);
for (BMBase *child : children()) {
if (child->hidden())
continue;
BMShape *shape = static_cast<BMShape*>(child);
if (shape->type() == BM_SHAPE_TRIM_IX) {
BMTrimPath *trim = static_cast<BMTrimPath*>(shape);
if (m_appliedTrim)
m_appliedTrim->applyTrim(*trim);
else
m_appliedTrim = trim;
} else if (m_appliedTrim && shape->acceptsTrim())
shape->applyTrim(*m_appliedTrim);
}
}
void BMGroup::render(LottieRenderer &renderer) const
{
qCDebug(lcLottieQtBodymovinRender) << "Group:" << name();
renderer.saveState();
if (m_appliedTrim && !m_appliedTrim->hidden()) {
if (m_appliedTrim->simultaneous())
renderer.setTrimmingState(LottieRenderer::Simultaneous);
else
renderer.setTrimmingState(LottieRenderer::Individual);
} else
renderer.setTrimmingState(LottieRenderer::Off);
for (BMBase *child : children()) {
if (child->hidden())
continue;
child->render(renderer);
}
if (m_appliedTrim && !m_appliedTrim->hidden()
&& !m_appliedTrim->simultaneous())
m_appliedTrim->render(renderer);
renderer.restoreState();
}
bool BMGroup::acceptsTrim() const
{
return true;
}
void BMGroup::applyTrim(const BMTrimPath &trimmer)
{
Q_ASSERT_X(!m_appliedTrim, "BMGroup", "A trim already assigned");
m_appliedTrim = static_cast<BMTrimPath*>(trimmer.clone());
// Setting a friendly name helps in testing
m_appliedTrim->setName(QStringLiteral("Inherited from") + trimmer.name());
for (BMBase *child : children()) {
BMShape *shape = static_cast<BMShape*>(child);
if (shape->acceptsTrim())
shape->applyTrim(*m_appliedTrim);
}
}
QT_END_NAMESPACE
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