| 1 | // Copyright (C) 2017 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #include "qmorphtarget.h" |
| 5 | #include "Qt3DAnimation/private/qmorphtarget_p.h" |
| 6 | |
| 7 | QT_BEGIN_NAMESPACE |
| 8 | |
| 9 | namespace Qt3DAnimation { |
| 10 | |
| 11 | /*! |
| 12 | \class Qt3DAnimation::QMorphTarget |
| 13 | \brief A class providing morph targets to blend-shape animation. |
| 14 | \inmodule Qt3DAnimation |
| 15 | \since 5.9 |
| 16 | \inherits QObject |
| 17 | |
| 18 | A Qt3DAnimation::QMorphTarget class is a convenience class, which provides a list |
| 19 | of \l {Qt3DCore::QAttribute} {QAttributes}, which the QMorphingAnimation uses |
| 20 | to animate geometry. A QMorphTarget can also be created based on existing |
| 21 | \l Qt3DCore::QGeometry. |
| 22 | |
| 23 | */ |
| 24 | /*! |
| 25 | \qmltype MorphTarget |
| 26 | \brief A type providing morph targets to blend-shape animation. |
| 27 | \inqmlmodule Qt3D.Animation |
| 28 | \since 5.9 |
| 29 | \inherits QtObject |
| 30 | \instantiates Qt3DAnimation::QMorphTarget |
| 31 | |
| 32 | A MorphTarget type is a convenience type, which provides a list |
| 33 | of \l {Qt3D.Core::Attribute} {Attributes}, which the MorphingAnimation uses |
| 34 | to animate geometry. A MorphTarget can also be created based on existing |
| 35 | \l {Qt3D.Core::Geometry}{Geometry}. |
| 36 | |
| 37 | */ |
| 38 | |
| 39 | /*! |
| 40 | \property Qt3DAnimation::QMorphTarget::attributeNames |
| 41 | Holds a list of attribute names contained in the morph target. |
| 42 | \readonly |
| 43 | */ |
| 44 | |
| 45 | /*! |
| 46 | \qmlproperty list<string> MorphTarget::attributeNames |
| 47 | Holds a list of attribute names contained in the morph target. |
| 48 | \readonly |
| 49 | */ |
| 50 | /*! |
| 51 | \qmlproperty list<Attribute> MorphTarget::attributes |
| 52 | Holds the list of attributes in the morph target. |
| 53 | */ |
| 54 | /*! |
| 55 | \qmlmethod MorphTarget Qt3D.Animation::MorphTarget::fromGeometry(geometry, stringList) |
| 56 | Returns a morph target based on the attributes defined by the given \a stringList from |
| 57 | the given \a geometry. |
| 58 | */ |
| 59 | |
| 60 | QMorphTargetPrivate::QMorphTargetPrivate() |
| 61 | : QObjectPrivate() |
| 62 | { |
| 63 | |
| 64 | } |
| 65 | |
| 66 | void QMorphTargetPrivate::updateAttributeNames() |
| 67 | { |
| 68 | m_attributeNames.clear(); |
| 69 | for (const Qt3DCore::QAttribute *attr : std::as_const(t&: m_targetAttributes)) |
| 70 | m_attributeNames.push_back(t: attr->name()); |
| 71 | } |
| 72 | |
| 73 | /*! |
| 74 | Constructs a QMorphTarget with given \a parent. |
| 75 | */ |
| 76 | QMorphTarget::QMorphTarget(QObject *parent) |
| 77 | : QObject(*new QMorphTargetPrivate, parent) |
| 78 | { |
| 79 | |
| 80 | } |
| 81 | |
| 82 | /*! |
| 83 | Returns a list of attributes contained in the morph target. |
| 84 | */ |
| 85 | QList<Qt3DCore::QAttribute *> QMorphTarget::attributeList() const |
| 86 | { |
| 87 | Q_D(const QMorphTarget); |
| 88 | return d->m_targetAttributes; |
| 89 | } |
| 90 | |
| 91 | QStringList QMorphTarget::attributeNames() const |
| 92 | { |
| 93 | Q_D(const QMorphTarget); |
| 94 | return d->m_attributeNames; |
| 95 | } |
| 96 | |
| 97 | /*! |
| 98 | Sets \a attributes to the morph target. Old attributes are cleared. |
| 99 | */ |
| 100 | void QMorphTarget::setAttributes(const QList<Qt3DCore::QAttribute *> &attributes) |
| 101 | { |
| 102 | Q_D(QMorphTarget); |
| 103 | d->m_targetAttributes = attributes; |
| 104 | d->m_attributeNames.clear(); |
| 105 | for (const Qt3DCore::QAttribute *attr : attributes) |
| 106 | d->m_attributeNames.push_back(t: attr->name()); |
| 107 | |
| 108 | emit attributeNamesChanged(attributeNames: d->m_attributeNames); |
| 109 | } |
| 110 | |
| 111 | /*! |
| 112 | Adds an \a attribute the morph target. An attribute with the same |
| 113 | name must not have been added previously to the morph target. |
| 114 | */ |
| 115 | void QMorphTarget::addAttribute(Qt3DCore::QAttribute *attribute) |
| 116 | { |
| 117 | Q_D(QMorphTarget); |
| 118 | for (const Qt3DCore::QAttribute *attr : std::as_const(t&: d->m_targetAttributes)) { |
| 119 | if (attr->name() == attribute->name()) |
| 120 | return; |
| 121 | } |
| 122 | d->m_targetAttributes.push_back(t: attribute); |
| 123 | d->m_attributeNames.push_back(t: attribute->name()); |
| 124 | emit attributeNamesChanged(attributeNames: d->m_attributeNames); |
| 125 | } |
| 126 | |
| 127 | /*! |
| 128 | Removes an \a attribute from the morph target. |
| 129 | */ |
| 130 | void QMorphTarget::removeAttribute(Qt3DCore::QAttribute *attribute) |
| 131 | { |
| 132 | Q_D(QMorphTarget); |
| 133 | if (d->m_targetAttributes.contains(t: attribute)) { |
| 134 | d->m_targetAttributes.removeAll(t: attribute); |
| 135 | d->updateAttributeNames(); |
| 136 | emit attributeNamesChanged(attributeNames: d->m_attributeNames); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | /*! |
| 141 | Returns a morph target based on the \a attributes in the given \a geometry. |
| 142 | */ |
| 143 | QMorphTarget *QMorphTarget::fromGeometry(Qt3DCore::QGeometry *geometry, const QStringList &attributes) |
| 144 | { |
| 145 | QMorphTarget *target = new QMorphTarget(); |
| 146 | const auto geometryAttributes = geometry->attributes(); |
| 147 | for (Qt3DCore::QAttribute *attr : geometryAttributes) { |
| 148 | if (attributes.contains(str: attr->name())) |
| 149 | target->addAttribute(attribute: attr); |
| 150 | } |
| 151 | return target; |
| 152 | } |
| 153 | |
| 154 | } // Qt3DAnimation |
| 155 | |
| 156 | QT_END_NAMESPACE |
| 157 | |
| 158 | #include "moc_qmorphtarget.cpp" |
| 159 |