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/****************************************************************************
**
** Copyright (C) 2016 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef INCLUDED_CMD_DATAMODEL_BASE_H
#define INCLUDED_CMD_DATAMODEL_BASE_H 1
#pragma once
//==============================================================================
// Include
//==============================================================================
#include "Cmd.h"
#include "CmdDataModel.h"
#include "Doc.h"
#include "Qt3DSDMHandles.h"
//==============================================================================
/**
* Base class that provide basic Update/Finalize functionality, when changing DataModel data.
*/
template <class TDataType>
class CCmdDataModelBase : public CCmd, public qt3dsdm::CmdDataModel
{
protected: // Members
CDoc *m_Doc;
TDataType m_Value;
public: // Construction
CCmdDataModelBase(CDoc *inDoc, TDataType inValue)
: CmdDataModel(*inDoc)
, m_Doc(inDoc)
, m_Value(inValue)
{
}
virtual void DoOperation() = 0;
//======================================================================
// Do/Redo
//======================================================================
unsigned long Do() override
{
if (!ConsumerExists()) {
SetConsumer();
DoOperation();
} else {
DataModelRedo();
}
return 0;
}
virtual void Update(const TDataType &inValue)
{
if (!ConsumerExists())
SetConsumer();
m_Value = inValue;
DoOperation();
}
void Finalize(const TDataType &inValue)
{
if (ConsumerExists()) {
m_Value = inValue;
DoOperation();
}
ReleaseConsumer();
}
//======================================================================
// Undo
//======================================================================
unsigned long Undo() override
{
if (ConsumerExists()) {
DataModelUndo();
}
return 0;
}
//======================================================================
// ToString
//======================================================================
QString ToString() override = 0;
TDataType GetValue() const { return m_Value; }
};
#endif
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