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# tictactoe.h Example File
designer/taskmenuextension/tictactoe.h

     /****************************************************************************
     **
     ** Copyright (C) 2005-2007 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
     **
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     ** review the following information:
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     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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     #ifndef TICTACTOE_H
     #define TICTACTOE_H

     #include <QWidget>

     class QRect;
     class QSize;

     class TicTacToe : public QWidget
     {
         Q_OBJECT
         Q_PROPERTY(QString state READ state WRITE setState)

     public:
         TicTacToe(QWidget *parent = 0);

         QSize minimumSizeHint() const;
         QSize sizeHint() const;
         void setState(const QString &newState);
         QString state() const;
         void clearBoard();

     protected:
         void mousePressEvent(QMouseEvent *event);
         void paintEvent(QPaintEvent *event);

     private:
         enum { Empty = '-', Cross = 'X', Nought = 'O' };

         QRect cellRect(int row, int col) const;
         int cellWidth() const { return width() / 3; }
         int cellHeight() const { return height() / 3; }

         QString myState;
         int turnNumber;
     };

     #endif