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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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);
~AddCommand();
void undo();
void redo();
private:
DiagramItem *myDiagramItem;
QGraphicsScene *myGraphicsScene;
QPointF initialPosition;
};
//! [2]
QString createCommandString(DiagramItem *item, const QPointF &point);
#endif
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