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/****************************************************************************
**
** Copyright (C) 1993-2009 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) 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.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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#pragma once
//==============================================================================
// Includes
//==============================================================================
#include "Qt3DSArray.h"
//==============================================================================
// Namespace
//==============================================================================
namespace Q3DStudio {
class IStatefulStackBase
{
public:
virtual void PushState() = 0;
virtual void PopState() = 0;
};
template <typename T>
class IStatefulStack : public IStatefulStackBase
{
public:
IStatefulStack(T &inStateProperty)
: m_StateProperty(inStateProperty)
{
}
virtual ~IStatefulStack(){};
public:
virtual void PushState() { m_States.Push(m_StateProperty); }
virtual void PopState() { m_StateProperty = m_States.Pop(); }
protected:
T &m_StateProperty;
CArray<T> m_States;
};
} // namespace Q3DStudio
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