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/****************************************************************************
**
** Copyright (C) 2007-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#ifndef COMMANDS_H
#define COMMANDS_H
#include <QUndoCommand>
#include "diagramitem.h"
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;
};
class DeleteCommand : public QUndoCommand
{
public:
DeleteCommand(QGraphicsScene *graphicsScene, QUndoCommand *parent = 0);
void undo();
void redo();
private:
DiagramItem *myDiagramItem;
QGraphicsScene *myGraphicsScene;
};
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;
};
QString createCommandString(DiagramItem *item, const QPointF &point);
#endif
Copyright © 2007 Trolltech | Trademarks | Qt 4.3.0rc1 |