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/****************************************************************************
**
** Copyright (C) 2002 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_GENERIC_H
#define INCLUDED_CMD_GENERIC_H 1
#pragma once
//==============================================================================
// Includes
//==============================================================================
#ifndef INCLUDED_CMD_H
#include "Cmd.h"
#endif
#include "StudioConst.h"
class CNull
{
};
class CDoc;
template <typename TClass, typename TArgType = CNull>
class CCmdGeneric : public CCmd
{
typedef void (TClass::*TDoUndoMethod)();
typedef void (TClass::*TOneArgDoUndoMethod)(TArgType);
public:
//==========================================================================
/**
* Create a Generic command that calls the specified methods on Do and Undo.
* This is a class for simple commands, makes it a bit quicker to make stuff.
* The class takes in a do method with 0 or 1 args defined by each constructor
* and a similar undo method
*
* @param inObject the object the methods are being called on.
* @param inDoMethod the method to be called on Do.
* @param inUndoMethod the method to be called on Undo.
* @param inDescription the description for this command.
*/
//==========================================================================
CCmdGeneric(TClass *inObject, TDoUndoMethod inDoMethod, TDoUndoMethod inUndoMethod,
Q3DStudio::CString inDescription, long inUpdateFlags = 0)
{
m_Object = inObject;
m_DoMethod = inDoMethod;
m_UndoMethod = inUndoMethod;
m_Description = inDescription;
m_NumArgs = 0;
m_UpdateFlags = inUpdateFlags;
}
CCmdGeneric(TClass *inObject, TOneArgDoUndoMethod inDoMethod, TOneArgDoUndoMethod inUndoMethod,
TArgType inDoArg, TArgType inUndoArg, const QString &inDescription,
long inUpdateFlags = 0)
{
m_Object = inObject;
m_OneArgDoMethod = inDoMethod;
m_OneArgUndoMethod = inUndoMethod;
m_DoArg = inDoArg;
m_UndoArg = inUndoArg;
m_Description = inDescription;
m_NumArgs = 1;
m_UpdateFlags = inUpdateFlags;
m_DoMethod = NULL;
m_UndoMethod = NULL;
}
CCmdGeneric(TClass *inObject, TDoUndoMethod inDoMethod)
{
m_Object = inObject;
m_DoMethod = inDoMethod;
m_UndoMethod = NULL;
m_NumArgs = 0;
m_UpdateFlags = 0;
SetUndoable(false);
}
CCmdGeneric(TClass *inObject, TOneArgDoUndoMethod inDoMethod, TArgType inDoArg)
{
m_Object = inObject;
m_OneArgDoMethod = inDoMethod;
m_OneArgUndoMethod = NULL;
m_DoArg = inDoArg;
m_NumArgs = 1;
m_UpdateFlags = 0;
SetUndoable(false);
}
virtual ~CCmdGeneric() {}
//==========================================================================
/**
* Performs this command, just calls the Do method on the object.
*
* @return 0.
*/
//==========================================================================
unsigned long Do() override
{
if (m_NumArgs == 0) {
(m_Object->*m_DoMethod)();
} else if (m_NumArgs == 1) {
(m_Object->*m_OneArgDoMethod)(m_DoArg);
}
return m_UpdateFlags;
}
//==========================================================================
/**
* Undoes this command, just calls the Undo method on the object.
*
* @return 0.
*/
//==========================================================================
unsigned long Undo() override
{
if (m_NumArgs == 0) {
(m_Object->*m_UndoMethod)();
} else if (m_NumArgs == 1) {
(m_Object->*m_OneArgUndoMethod)(m_UndoArg);
}
return m_UpdateFlags;
}
//==========================================================================
/**
* @return CCmd::GENERIC
*/
//==========================================================================
CCmd::ECmdType GetType() override { return CCmd::GENERIC; }
//==========================================================================
/**
* NOP.
*/
//==========================================================================
bool CanMerge(CCmd *inCommand) override
{
Q_UNUSED(inCommand);
return false;
}
//==========================================================================
/**
* NOP.
*/
//==========================================================================
void Merge(CCmd *inCommand) override { Q_UNUSED(inCommand); }
//==========================================================================
/**
* @return the description from the constructor.
*/
//==========================================================================
QString ToString() override { return m_Description; }
protected:
TClass *m_Object;
TDoUndoMethod m_DoMethod;
TDoUndoMethod m_UndoMethod;
QString m_Description;
TOneArgDoUndoMethod m_OneArgDoMethod;
TOneArgDoUndoMethod m_OneArgUndoMethod;
TArgType m_DoArg;
TArgType m_UndoArg;
long m_NumArgs;
long m_UpdateFlags;
};
#endif // INCLUDED_CMD_GENERIC_H
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