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++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "qmorphtarget.h"
++ #include "Qt3DAnimation/private/qmorphtarget_p.h"
++
++ QT_BEGIN_NAMESPACE
++
++ namespace Qt3DAnimation {
++
++ /*!
++ \class Qt3DAnimation::QMorphTarget
++ \brief A class providing morph targets to blend-shape animation.
++ \inmodule Qt3DAnimation
++ \since 5.9
++ \inherits QObject
++
++ A Qt3DAnimation::QMorphTarget class is a convenience class, which provides a list
++ of \l {Qt3DCore::QAttribute} {QAttributes}, which the QMorphingAnimation uses
++ to animate geometry. A QMorphTarget can also be created based on existing
++ \l Qt3DCore::QGeometry.
++
++ */
++ /*!
++ \qmltype MorphTarget
++ \brief A type providing morph targets to blend-shape animation.
++ \inqmlmodule Qt3D.Animation
++ \since 5.9
++ \inherits QtObject
++ \nativetype Qt3DAnimation::QMorphTarget
++
++ A MorphTarget type is a convenience type, which provides a list
++ of \l {Qt3D.Core::Attribute} {Attributes}, which the MorphingAnimation uses
++ to animate geometry. A MorphTarget can also be created based on existing
++ \l {Qt3D.Core::Geometry}{Geometry}.
++
++ */
++
++ /*!
++ \property Qt3DAnimation::QMorphTarget::attributeNames
++ Holds a list of attribute names contained in the morph target.
++ \readonly
++ */
++
++ /*!
++ \qmlproperty list<string> MorphTarget::attributeNames
++ Holds a list of attribute names contained in the morph target.
++ \readonly
++ */
++ /*!
++ \qmlproperty list<Attribute> MorphTarget::attributes
++ Holds the list of attributes in the morph target.
++ */
++ /*!
++ \qmlmethod MorphTarget Qt3D.Animation::MorphTarget::fromGeometry(geometry, stringList)
++ Returns a morph target based on the attributes defined by the given \a stringList from
++ the given \a geometry.
++ */
++
++ QMorphTargetPrivate::QMorphTargetPrivate()
++ : QObjectPrivate()
++ {
++
++ }
++
++ void QMorphTargetPrivate::updateAttributeNames()
++ {
++ m_attributeNames.clear();
++ for (const Qt3DCore::QAttribute *attr : std::as_const(m_targetAttributes))
++ m_attributeNames.push_back(attr->name());
++ }
++
++ /*!
++ Constructs a QMorphTarget with given \a parent.
++ */
++ QMorphTarget::QMorphTarget(QObject *parent)
++ : QObject(*new QMorphTargetPrivate, parent)
++ {
++
++ }
++
++ /*!
++ Returns a list of attributes contained in the morph target.
++ */
++ QList<Qt3DCore::QAttribute *> QMorphTarget::attributeList() const
++ {
++ Q_D(const QMorphTarget);
++ return d->m_targetAttributes;
++ }
++
++ QStringList QMorphTarget::attributeNames() const
++ {
++ Q_D(const QMorphTarget);
++ return d->m_attributeNames;
++ }
++
++ /*!
++ Sets \a attributes to the morph target. Old attributes are cleared.
++ */
++ void QMorphTarget::setAttributes(const QList<Qt3DCore::QAttribute *> &attributes)
++ {
++ Q_D(QMorphTarget);
++ d->m_targetAttributes = attributes;
++ d->m_attributeNames.clear();
++ for (const Qt3DCore::QAttribute *attr : attributes)
++ d->m_attributeNames.push_back(attr->name());
++
++ emit attributeNamesChanged(d->m_attributeNames);
++ }
++
++ /*!
++ Adds an \a attribute the morph target. An attribute with the same
++ name must not have been added previously to the morph target.
++ */
++ void QMorphTarget::addAttribute(Qt3DCore::QAttribute *attribute)
++ {
++ Q_D(QMorphTarget);
++ for (const Qt3DCore::QAttribute *attr : std::as_const(d->m_targetAttributes)) {
++ if (attr->name() == attribute->name())
++ return;
++ }
++ d->m_targetAttributes.push_back(attribute);
++ d->m_attributeNames.push_back(attribute->name());
++ emit attributeNamesChanged(d->m_attributeNames);
++ }
++
++ /*!
++ Removes an \a attribute from the morph target.
++ */
++ void QMorphTarget::removeAttribute(Qt3DCore::QAttribute *attribute)
++ {
++ Q_D(QMorphTarget);
++ if (d->m_targetAttributes.contains(attribute)) {
++ d->m_targetAttributes.removeAll(attribute);
++ d->updateAttributeNames();
++ emit attributeNamesChanged(d->m_attributeNames);
++ }
++ }
++
++ /*!
++ Returns a morph target based on the \a attributes in the given \a geometry.
++ */
++ QMorphTarget *QMorphTarget::fromGeometry(Qt3DCore::QGeometry *geometry, const QStringList &attributes)
++ {
++ QMorphTarget *target = new QMorphTarget();
++ const auto geometryAttributes = geometry->attributes();
++ for (Qt3DCore::QAttribute *attr : geometryAttributes) {
++ if (attributes.contains(attr->name()))
++ target->addAttribute(attr);
++ }
++ return target;
++ }
++
++ } // Qt3DAnimation
++
++ QT_END_NAMESPACE
++
++ #include "moc_qmorphtarget.cpp"