commands.h Example Filedemos/undo/commands.h/**************************************************************************** ** ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the demonstration applications of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** GNU Lesser General Public License Usage ** 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 1.1, 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. ** ** Other Usage ** Alternatively, this file may be used in accordance with the terms and ** conditions contained in a signed written agreement between you and Nokia. ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef COMMANDS_H #define COMMANDS_H #include <QUndoCommand> #include "document.h" class AddShapeCommand : public QUndoCommand { public: AddShapeCommand(Document *doc, const Shape &shape, QUndoCommand *parent = 0); void undo(); void redo(); private: Document *m_doc; Shape m_shape; QString m_shapeName; }; class RemoveShapeCommand : public QUndoCommand { public: RemoveShapeCommand(Document *doc, const QString &shapeName, QUndoCommand *parent = 0); void undo(); void redo(); private: Document *m_doc; Shape m_shape; QString m_shapeName; }; class SetShapeColorCommand : public QUndoCommand { public: SetShapeColorCommand(Document *doc, const QString &shapeName, const QColor &color, QUndoCommand *parent = 0); void undo(); void redo(); bool mergeWith(const QUndoCommand *command); int id() const; private: Document *m_doc; QString m_shapeName; QColor m_oldColor; QColor m_newColor; }; class SetShapeRectCommand : public QUndoCommand { public: SetShapeRectCommand(Document *doc, const QString &shapeName, const QRect &rect, QUndoCommand *parent = 0); void undo(); void redo(); bool mergeWith(const QUndoCommand *command); int id() const; private: Document *m_doc; QString m_shapeName; QRect m_oldRect; QRect m_newRect; }; #endif // COMMANDS_H |
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