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# puzzlewidget.h Example File
itemviews/puzzle/puzzlewidget.h

     /****************************************************************************
     **
     ** Copyright (C) 2005-$THISYEAR$ $TROLLTECH$. All rights reserved.
     **
     ** This file is part of the $MODULE$ of the Qt Toolkit.
     **
     ** $TROLLTECH_DUAL_LICENSE$
     **
     ** 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 PUZZLEWIDGET_H
     #define PUZZLEWIDGET_H

     #include <QList>
     #include <QPoint>
     #include <QPixmap>
     #include <QWidget>

     class QDragEnterEvent;
     class QDropEvent;
     class QMouseEvent;

     class PuzzleWidget : public QWidget
     {
         Q_OBJECT

     public:
         PuzzleWidget(QWidget *parent = 0);
         void clear();

     signals:
         void puzzleCompleted();

     protected:
         void dragEnterEvent(QDragEnterEvent *event);
         void dragLeaveEvent(QDragLeaveEvent *event);
         void dragMoveEvent(QDragMoveEvent *event);
         void dropEvent(QDropEvent *event);
         void mousePressEvent(QMouseEvent *event);
         void paintEvent(QPaintEvent *event);

     private:
         int findPiece(const QRect &pieceRect) const;
         const QRect targetSquare(const QPoint &position) const;

         QList<QPixmap> piecePixmaps;
         QList<QRect> pieceRects;
         QList<QPoint> pieceLocations;
         QRect highlightedRect;
         int inPlace;
     };

     #endif