custominstancing.h

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++ // Copyright (C) 2020 The Qt Company Ltd.

++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

++

++ #ifndef CUSTOMINSTANCING_H

++ #define CUSTOMINSTANCING_H

++

++ #include <QtQuick3D/qquick3dinstancing.h>

++

++ class CustomInstancing : public QQuick3DInstancing

++ {

++     Q_OBJECT

++     QML_ELEMENT

++

++     Q_PROPERTY(int instanceCount READ instanceCount WRITE setInstanceCount NOTIFY instanceCountChanged)

++

++ public:

++     explicit CustomInstancing(QQuick3DObject *parent = nullptr) : QQuick3DInstancing(parent) {}

++     ~CustomInstancing() override {}

++

++     QByteArray getInstanceBuffer(int *instanceCount) override;

++

++     int instanceCount() const

++     {

++         return m_instanceCount;

++     }

++

++ public slots:

++     void setInstanceCount(int instanceCount);

++

++ signals:

++     void instanceCountChanged(int instanceCount);

++

++ private:

++     int m_instanceCount = 0;

++ };

++

++ #endif // CUSTOMINSTANCING_H