Grue Sensor example

Updated, documented as an example.
Now with a QML import and a QML app.

Fixes: MTMW-85
Change-Id: I06772cf4a07ea0d2ec7bfccda6e8f51b5d866c20
Reviewed-on: http://codereview.qt-project.org/6016
Reviewed-by: Lincoln Ramsay <lincoln.ramsay@nokia.com>

2 files changed, 94 insertions, 0 deletions

diff --git a/examples/sensors/grue/console_app/console_app.pro b/examples/sensors/grue/console_app/console_app.pro
new file mode 100644
index 00000000..fefc0157
--- /dev/null
+++ b/examples/sensors/grue/console_app/console_app.pro
@@ -0,0 +1,5 @@
+TEMPLATE=app
+TARGET=detect_grue
+QT=core sensors
+SOURCES=main.cpp
+
diff --git a/examples/sensors/grue/console_app/main.cpp b/examples/sensors/grue/console_app/main.cpp
new file mode 100644
index 00000000..789e6451
--- /dev/null
+++ b/examples/sensors/grue/console_app/main.cpp
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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 Mobility Components.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore>
+#include <qsensor.h>
+
+class Filter : public QSensorFilter
+{
+    int lastPercent;
+public:
+    Filter()
+        : QSensorFilter()
+        , lastPercent(0)
+    {
+    }
+
+    bool filter(QSensorReading *reading)
+    {
+        int percent = reading->property("chanceOfBeingEaten").value<qreal>() * 100;
+        if (percent == 0) {
+            qDebug() << "It is light. You are safe from Grues.";
+        } else if (lastPercent == 0) {
+            qDebug() << "It is dark. You are likely to be eaten by a Grue.";
+        }
+        if (percent == 100) {
+            qDebug() << "You have been eaten by a Grue!";
+            QCoreApplication::instance()->quit();
+        } else if (percent)
+            qDebug() << "Your chance of being eaten by a Grue:" << percent << "percent.";
+        lastPercent = percent;
+        return false;
+    }
+};
+
+int main(int argc, char **argv)
+{
+    QCoreApplication app(argc, argv);
+
+    QSensor sensor("GrueSensor");
+
+    Filter filter;
+    sensor.addFilter(&filter);
+    sensor.start();
+
+    if (!sensor.isActive()) {
+        qWarning("The Grue sensor didn't start. You're on your own!");
+        return 1;
+    }
+
+    return app.exec();
+}
+