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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3DCORE_QNODE_H
#define QT3DCORE_QNODE_H
#include <QObject>
#include <Qt3DCore/qt3dcore_global.h>
#include <Qt3DCore/qnodeid.h>
#include <Qt3DCore/qscenechange.h>
#include <Qt3DCore/qabstractnodefactory.h>
#define Q_NODE_NULLPTR static_cast<Qt3DCore::QNode *>(Q_NULLPTR)
QT_BEGIN_NAMESPACE
namespace Qt3DCore {
class QNode;
class QNodePrivate;
class QEntity;
class QAspectEngine;
typedef QList<QNode *> QNodeList;
typedef QSharedPointer<QNode> QNodePtr;
#define QT3DCORE_QUOTE(str) #str
#define QT3D_CLONEABLE(Class) \
friend class Qt3DCore::QAbstractNodeFactory; \
QNode *doClone() const Q_DECL_OVERRIDE { \
Class *clone_ = Qt3DCore::QAbstractNodeFactory::createNode<Class>(QT3DCORE_QUOTE(Class)); \
clone_->copy(this); \
return clone_; \
}
// Each QNode subclass should call QNode::cleanup in it dtor
// QNode::cleanup checks that a flags wasn't set to true,
// sets it to true and sends a clone to the backend
class QT3DCORESHARED_EXPORT QNode : public QObject
{
Q_OBJECT
Q_PROPERTY(Qt3DCore::QNode *parent READ parentNode WRITE setParent NOTIFY parentChanged)
Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged)
public:
explicit QNode(QNode *parent = 0);
virtual ~QNode();
const QNodeId id() const;
QNode *parentNode() const;
bool notificationsBlocked() const;
bool blockNotifications(bool block);
QNodeList childrenNodes() const;
bool isEnabled() const;
public Q_SLOTS:
virtual void setParent(QNode *parent);
void setEnabled(bool isEnabled);
Q_SIGNALS:
void parentChanged(QObject *parent);
void enabledChanged(bool enabled);
protected:
// Clone should only be made in the main thread
static QNode *clone(QNode *node);
QNode(QNodePrivate &dd, QNode *parent = 0);
virtual void copy(const QNode *ref);
virtual void sceneChangeEvent(const QSceneChangePtr &change);
void cleanup();
private:
Q_DECLARE_PRIVATE(QNode)
virtual QNode *doClone() const = 0;
// We only want setParent(QNode *) to be callable
// when dealing with QNode objects
void setParent(QObject *) Q_DECL_EQ_DELETE;
Q_PRIVATE_SLOT(d_func(), void _q_addChild(QNode *))
Q_PRIVATE_SLOT(d_func(), void _q_removeChild(QNode *))
friend class QAspectEngine;
friend class QPostman;
friend class QScene;
};
} // namespace Qt3DCore
QT_END_NAMESPACE
#endif
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