--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/designer/taskmenuextension/tictactoe.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,176 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "tictactoe.h"
+
+TicTacToe::TicTacToe(QWidget *parent)
+    : QWidget(parent)
+{
+}
+
+QSize TicTacToe::minimumSizeHint() const
+{
+    return QSize(200, 200);
+}
+
+QSize TicTacToe::sizeHint() const
+{
+    return QSize(200, 200);
+}
+
+void TicTacToe::setState(const QString &newState)
+{
+    turnNumber = 0;
+    myState = "---------";
+    int position = 0;
+    while (position < 9 && position < newState.length()) {
+        QChar mark = newState.at(position);
+        if (mark == Cross || mark == Nought) {
+            ++turnNumber;
+            myState.replace(position, 1, mark);
+        }
+        position++;
+    }
+    update();
+}
+
+QString TicTacToe::state() const
+{
+    return myState;
+}
+
+void TicTacToe::clearBoard()
+{
+    myState = "---------";
+    turnNumber = 0;
+    update();
+}
+
+void TicTacToe::mousePressEvent(QMouseEvent *event)
+{
+    if (turnNumber == 9) {
+        clearBoard();
+        update();
+    } else {
+        for (int position = 0; position < 9; ++position) {
+            QRect cell = cellRect(position / 3, position % 3);
+            if (cell.contains(event->pos())) {
+                if (myState.at(position) == Empty) {
+                    if (turnNumber % 2 == 0)
+                        myState.replace(position, 1, Cross);
+                    else
+                        myState.replace(position, 1, Nought);
+                    ++turnNumber;
+                    update();
+                }
+            }
+        }
+    }
+}
+
+void TicTacToe::paintEvent(QPaintEvent * /* event */)
+{
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing);
+
+    painter.setPen(QPen(Qt::darkGreen, 1));
+    painter.drawLine(cellWidth(), 0, cellWidth(), height());
+    painter.drawLine(2 * cellWidth(), 0, 2 * cellWidth(), height());
+    painter.drawLine(0, cellHeight(), width(), cellHeight());
+    painter.drawLine(0, 2 * cellHeight(), width(), 2 * cellHeight());
+
+    painter.setPen(QPen(Qt::darkBlue, 2));
+
+    for (int position = 0; position < 9; ++position) {
+        QRect cell = cellRect(position / 3, position % 3);
+
+        if (myState.at(position) == Cross) {
+            painter.drawLine(cell.topLeft(), cell.bottomRight());
+            painter.drawLine(cell.topRight(), cell.bottomLeft());
+        } else if (myState.at(position) == Nought) {
+            painter.drawEllipse(cell);
+        }
+    }
+
+    painter.setPen(QPen(Qt::yellow, 3));
+
+    for (int position = 0; position < 9; position = position + 3) {
+        if (myState.at(position) != Empty
+                && myState.at(position + 1) == myState.at(position)
+                && myState.at(position + 2) == myState.at(position)) {
+            int y = cellRect((position / 3), 0).center().y();
+            painter.drawLine(0, y, width(), y);
+            turnNumber = 9;
+        }
+    }
+
+    for (int position = 0; position < 3; ++position) {
+        if (myState.at(position) != Empty
+                && myState.at(position + 3) == myState.at(position)
+                && myState.at(position + 6) == myState.at(position)) {
+            int x = cellRect(0, position).center().x();
+            painter.drawLine(x, 0, x, height());
+            turnNumber = 9;
+        }
+    }
+    if (myState.at(0) != Empty && myState.at(4) == myState.at(0)
+            && myState.at(8) == myState.at(0)) {
+        painter.drawLine(0, 0, width(), height());
+        turnNumber = 9;
+    }
+    if (myState.at(2) != Empty && myState.at(4) == myState.at(2)
+            && myState.at(6) == myState.at(2)) {
+        painter.drawLine(0, height(), width(), 0);
+        turnNumber = 9;
+    }
+}
+
+QRect TicTacToe::cellRect(int row, int column) const
+{
+    const int HMargin = width() / 30;
+    const int VMargin = height() / 30;
+    return QRect(column * cellWidth() + HMargin,
+                 row * cellHeight() + VMargin,
+                 cellWidth() - 2 * HMargin,
+                 cellHeight() - 2 * VMargin);
+}