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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 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 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef COMMANDS_H
#define COMMANDS_H
#include <QUndoCommand>
#include "diagramitem.h"
//! [0]
class MoveCommand : public QUndoCommand
{
public:
enum { Id = 1234 };
MoveCommand(DiagramItem *diagramItem, const QPointF &oldPos,
QUndoCommand *parent = 0);
void undo();
void redo();
bool mergeWith(const QUndoCommand *command);
int id() const { return Id; }
private:
DiagramItem *myDiagramItem;
QPointF myOldPos;
QPointF newPos;
};
//! [0]
//! [1]
class DeleteCommand : public QUndoCommand
{
public:
DeleteCommand(QGraphicsScene *graphicsScene, QUndoCommand *parent = 0);
void undo();
void redo();
private:
DiagramItem *myDiagramItem;
QGraphicsScene *myGraphicsScene;
};
//! [1]
//! [2]
class AddCommand : public QUndoCommand
{
public:
AddCommand(DiagramItem::DiagramType addType, QGraphicsScene *graphicsScene,
QUndoCommand *parent = 0);
void undo();
void redo();
private:
DiagramItem *myDiagramItem;
QGraphicsScene *myGraphicsScene;
QPointF initialPosition;
};
//! [2]
QString createCommandString(DiagramItem *item, const QPointF &point);
#endif
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