diff -r 000000000000 -r 1918ee327afb examples/qws/mousecalibration/scribblewidget.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/qws/mousecalibration/scribblewidget.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,93 @@
+/****************************************************************************
+**
+** 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 "scribblewidget.h"
+
+ScribbleWidget::ScribbleWidget(QWidget *parent)
+    : QWidget(parent)
+{
+    scribbling = false;
+}
+
+void ScribbleWidget::resizeEvent(QResizeEvent *e)
+{
+    image = QImage(e->size(), QImage::Format_RGB32);
+    image.fill(QColor(Qt::white).rgb());
+}
+
+void ScribbleWidget::mousePressEvent(QMouseEvent *event)
+{
+    if (event->button() != Qt::LeftButton)
+        return;
+
+    lastPoint = event->pos();
+    scribbling = true;
+}
+
+void ScribbleWidget::mouseMoveEvent(QMouseEvent *event)
+{
+    if ((event->buttons() & Qt::LeftButton) && scribbling)
+        drawLineTo(event->pos());
+}
+
+void ScribbleWidget::mouseReleaseEvent(QMouseEvent *event)
+{
+    if (event->button() == Qt::LeftButton && scribbling) {
+        drawLineTo(event->pos());
+        scribbling = false;
+    }
+}
+
+void ScribbleWidget::paintEvent(QPaintEvent *)
+{
+    QPainter painter(this);
+    painter.drawImage(QPoint(0, 0), image);
+}
+
+void ScribbleWidget::drawLineTo(const QPoint &endPoint)
+{
+    QPainter painter(&image);
+    painter.setPen(QPen(Qt::blue, 1, Qt::SolidLine,
+                        Qt::RoundCap, Qt::RoundJoin));
+    painter.drawLine(lastPoint, endPoint);
+    update();
+    lastPoint = endPoint;
+}