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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef Q_QUICK3D_INSTANCING_P_H
#define Q_QUICK3D_INSTANCING_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtQuick3D/qquick3dinstancing.h>
#include <QtQuick3D/private/qquick3dobject_p.h>
#include <QtGui/qvector3d.h>
QT_BEGIN_NAMESPACE
class QQuick3DInstancingPrivate : public QQuick3DObjectPrivate
{
public:
QQuick3DInstancingPrivate();
int m_instanceCountOverride = -1;
int m_instanceCount = 0;
bool m_hasTransparency = false;
bool m_instanceDataChanged = true;
bool m_instanceCountOverrideChanged = false;
bool m_depthSortingEnabled = false;
QVector3D m_shadowBoundsMinimum = QVector3D(1, 1, 1);
QVector3D m_shadowBoundsMaximum = QVector3D(-1, -1, -1);
};
class Q_QUICK3D_EXPORT QQuick3DInstanceListEntry : public QQuick3DObject
{
Q_OBJECT
QML_ADDED_IN_VERSION(6, 2)
Q_PROPERTY(QVector3D position READ position WRITE setPosition NOTIFY positionChanged)
Q_PROPERTY(QVector3D scale READ scale WRITE setScale NOTIFY scaleChanged)
Q_PROPERTY(QVector3D eulerRotation READ eulerRotation WRITE setEulerRotation NOTIFY eulerRotationChanged)
Q_PROPERTY(QQuaternion rotation READ rotation WRITE setRotation NOTIFY rotationChanged)
Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
Q_PROPERTY(QVector4D customData READ customData WRITE setCustomData NOTIFY customDataChanged)
QML_NAMED_ELEMENT(InstanceListEntry)
public:
explicit QQuick3DInstanceListEntry(QQuick3DObject *parent = nullptr);
~QQuick3DInstanceListEntry() override {}
QVector3D position() const
{
return m_position;
}
QVector3D scale() const
{
return m_scale;
}
QVector3D eulerRotation() const
{
return m_eulerRotation;
}
QQuaternion rotation() const
{
return m_rotation;
}
QColor color() const
{
return m_color;
}
QVector4D customData() const
{
return m_customData;
}
public Q_SLOTS:
void setPosition(QVector3D position);
void setScale(QVector3D scale);
void setEulerRotation(QVector3D eulerRotation);
void setRotation(QQuaternion rotation);
void setColor(QColor color);
void setCustomData(QVector4D customData);
Q_SIGNALS:
void positionChanged();
void scaleChanged();
void eulerRotationChanged();
void rotationChanged();
void colorChanged();
void customDataChanged();
void changed();
protected:
QSSGRenderGraphObject *updateSpatialNode(QSSGRenderGraphObject *) override
{
return nullptr;
}
private:
QVector3D m_position;
QVector3D m_scale = {1, 1, 1};
QVector3D m_eulerRotation;
QQuaternion m_rotation;
QColor m_color = Qt::white;
QVector4D m_customData;
bool m_useEulerRotation = true;
friend class QQuick3DInstanceList;
};
class Q_QUICK3D_EXPORT QQuick3DInstanceList : public QQuick3DInstancing
{
Q_OBJECT
Q_PROPERTY(QQmlListProperty<QQuick3DInstanceListEntry> instances READ instances)
Q_PROPERTY(int instanceCount READ instanceCount NOTIFY instanceCountChanged)
QML_NAMED_ELEMENT(InstanceList)
QML_ADDED_IN_VERSION(6, 2)
Q_CLASSINFO("DefaultProperty", "instances")
public:
explicit QQuick3DInstanceList(QQuick3DObject *parent = nullptr);
~QQuick3DInstanceList() override;
QByteArray getInstanceBuffer(int *instanceCount) override;
QQmlListProperty<QQuick3DInstanceListEntry> instances();
int instanceCount() const;
Q_SIGNALS:
void instanceCountChanged();
private Q_SLOTS:
void handleInstanceChange();
void onInstanceDestroyed(QObject *object);
private:
void generateInstanceData();
static void qmlAppendInstanceListEntry(QQmlListProperty<QQuick3DInstanceListEntry> *list, QQuick3DInstanceListEntry *material);
static QQuick3DInstanceListEntry *qmlInstanceListEntryAt(QQmlListProperty<QQuick3DInstanceListEntry> *list, qsizetype index);
static qsizetype qmlInstanceListEntriesCount(QQmlListProperty<QQuick3DInstanceListEntry> *list);
static void qmlClearInstanceListEntries(QQmlListProperty<QQuick3DInstanceListEntry> *list);
bool m_dirty = true;
QByteArray m_instanceData;
QList<QQuick3DInstanceListEntry *> m_instances;
};
class Q_QUICK3D_EXPORT QQuick3DFileInstancing : public QQuick3DInstancing
{
Q_OBJECT
QML_NAMED_ELEMENT(FileInstancing)
QML_ADDED_IN_VERSION(6, 2)
Q_PROPERTY(QUrl source READ source WRITE setSource NOTIFY sourceChanged)
Q_PROPERTY(int instanceCount READ instanceCount NOTIFY instanceCountChanged)
public:
explicit QQuick3DFileInstancing(QQuick3DObject *parent = nullptr);
~QQuick3DFileInstancing() override;
const QUrl &source() const;
void setSource(const QUrl &newSource);
bool loadFromBinaryFile(const QString &filename);
bool loadFromXmlFile(const QString &filename);
int writeToBinaryFile(QIODevice *out);
int instanceCount() const;
Q_SIGNALS:
void instanceCountChanged();
void sourceChanged();
protected:
QByteArray getInstanceBuffer(int *instanceCount) override;
private:
bool loadFromFile(const QUrl &source);
private:
int m_instanceCount = 0;
QByteArray m_instanceData;
QFile *m_dataFile = nullptr;
bool m_dirty = true;
QUrl m_source;
};
QT_END_NAMESPACE
#endif
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