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diff --git a/examples/widgets/widgets/tetrix/tetrixboard.h b/examples/widgets/widgets/tetrix/tetrixboard.h
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** 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 Nokia Corporation 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 TETRIXBOARD_H
+#define TETRIXBOARD_H
+
+#include <QBasicTimer>
+#include <QFrame>
+#include <QPointer>
+
+#include "tetrixpiece.h"
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+QT_END_NAMESPACE
+
+//! [0]
+class TetrixBoard : public QFrame
+{
+    Q_OBJECT
+
+public:
+    TetrixBoard(QWidget *parent = 0);
+
+    void setNextPieceLabel(QLabel *label);
+    QSize sizeHint() const;
+    QSize minimumSizeHint() const;
+
+public slots:
+    void start();
+    void pause();
+
+signals:
+    void scoreChanged(int score);
+    void levelChanged(int level);
+    void linesRemovedChanged(int numLines);
+
+protected:
+    void paintEvent(QPaintEvent *event);
+    void keyPressEvent(QKeyEvent *event);
+    void timerEvent(QTimerEvent *event);
+//! [0]
+
+//! [1]
+private:
+    enum { BoardWidth = 10, BoardHeight = 22 };
+
+    TetrixShape &shapeAt(int x, int y) { return board[(y * BoardWidth) + x]; }
+    int timeoutTime() { return 1000 / (1 + level); }
+    int squareWidth() { return contentsRect().width() / BoardWidth; }
+    int squareHeight() { return contentsRect().height() / BoardHeight; }
+    void clearBoard();
+    void dropDown();
+    void oneLineDown();
+    void pieceDropped(int dropHeight);
+    void removeFullLines();
+    void newPiece();
+    void showNextPiece();
+    bool tryMove(const TetrixPiece &newPiece, int newX, int newY);
+    void drawSquare(QPainter &painter, int x, int y, TetrixShape shape);
+
+    QBasicTimer timer;
+    QPointer<QLabel> nextPieceLabel;
+    bool isStarted;
+    bool isPaused;
+    bool isWaitingAfterLine;
+    TetrixPiece curPiece;
+    TetrixPiece nextPiece;
+    int curX;
+    int curY;
+    int numLinesRemoved;
+    int numPiecesDropped;
+    int score;
+    int level;
+    TetrixShape board[BoardWidth * BoardHeight];
+};
+//! [1]
+
+#endif