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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3DRENDER_QITEMMODELBUFFER_H
#define QT3DRENDER_QITEMMODELBUFFER_H
#include <QObject>
#include <Qt3DRender/qt3drender_global.h>
#include <Qt3DRender/qbuffer.h>
#include <Qt3DRender/qattribute.h>
#include <QAbstractItemModel>
#include <QMap>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
class QT3DRENDERSHARED_EXPORT QItemModelBuffer : public QObject
{
Q_OBJECT
public:
QItemModelBuffer();
void setModel(QAbstractItemModel* model);
void setRoot(const QModelIndex& rootIndex);
void mapRoleName(QByteArray roleName, int type);
void mapRoleName(QByteArray roleName, QString attributeName, int type);
QBuffer *buffer();
QStringList attributeNames() const;
QAttribute *attributeByName(QString nm) const;
private Q_SLOTS:
void onModelReset();
void onModelDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
private:
QAbstractItemModel* m_model;
QModelIndex m_rootIndex;
struct RoleMapping {
RoleMapping(QByteArray role, QString attr, int ty);
QByteArray roleName;
int cachedRole;
QString attribute;
int type;
int byteSize;
};
QList<RoleMapping> m_mappings;
QBuffer *m_buffer;
QMap<QString, QAttribute *> m_attributes;
int m_itemStride;
QByteArray computeBufferData();
void writeDataForIndex(const QModelIndex &index, int mappingCount, char *bufferPtr);
bool validateRoles();
};
} // namespace Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_QITEMMODELBUFFER_H
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