--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/examples/sensors/small_screen_sensors/freefallform.cpp	Mon May 03 13:18:40 2010 +0300
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** 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 Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 "freefallform.h"
+
+const int KTreshold = 2;
+
+FreeFallForm::FreeFallForm(QWidget *parent)
+    : QWidget(parent)
+{
+    setupUi(this);
+    dropItLabel->setText("");
+
+    m_accelerationSensor.addFilter(this);
+    m_accelerationSensor.start();
+    m_freeFallState = StateNotStarted;
+}
+
+void FreeFallForm::on_setupButton_clicked()
+{
+    setupButton->setDisabled(true);
+    dropItLabel->setText("Drop it!");
+    freeFallTimeLabel->setText("-");
+    freeFallHeightLabel->setText("-");
+    m_freeFallState = StateSetup;
+}
+
+bool FreeFallForm::filter(QAccelerometerReading *reading)
+{
+    switch (m_freeFallState) {
+    case StateSetup:
+        if (abs(reading->x()) < KTreshold && abs(reading->y()) < KTreshold && abs(reading->z()) < KTreshold) {
+            m_freeFallTimer.start();
+            m_freeFallState = StateFalling;
+        }
+        break;
+    case StateFalling:
+        if (abs(reading->x()) > KTreshold || abs(reading->y()) > KTreshold || abs(reading->z()) > KTreshold) {
+            freeFallTimeLabel->setNum(m_freeFallTimer.elapsed());
+            qreal t = (qreal(m_freeFallTimer.elapsed()) / 1000);
+            freeFallHeightLabel->setNum(9.81 / 2 * t * t);
+            m_freeFallState = StateNotStarted;
+            setupButton->setEnabled(true);
+            setupButton->setFocus();
+            dropItLabel->setText("");
+        }
+        break;
+    default:
+        break;
+    }
+
+    return false;
+}