summaryrefslogtreecommitdiffstats
path: root/tools/qmlviewer/deviceorientation_maemo.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'tools/qmlviewer/deviceorientation_maemo.cpp')
-rw-r--r--tools/qmlviewer/deviceorientation_maemo.cpp139
1 files changed, 139 insertions, 0 deletions
diff --git a/tools/qmlviewer/deviceorientation_maemo.cpp b/tools/qmlviewer/deviceorientation_maemo.cpp
new file mode 100644
index 0000000..9df9af4
--- /dev/null
+++ b/tools/qmlviewer/deviceorientation_maemo.cpp
@@ -0,0 +1,139 @@
+/****************************************************************************
+**
+** 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 tools applications 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 "deviceorientation.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+class MaemoOrientation : public DeviceOrientation
+{
+ Q_OBJECT
+public:
+ MaemoOrientation()
+ : DeviceOrientation(),m_current(Portrait), m_lastSeen(Portrait), m_lastSeenCount(0)
+ {
+ startTimer(100);
+ }
+
+ Orientation orientation() const {
+ return m_current;
+ }
+
+ void setOrientation(Orientation orient) {
+ //XXX maybe better to just ignore
+ if (orient != m_current) {
+ m_current = orient;
+ emit orientationChanged();
+ }
+ }
+
+
+protected:
+ virtual void timerEvent(QTimerEvent *)
+ {
+ Orientation c = get();
+
+ if (c == m_lastSeen) {
+ m_lastSeenCount++;
+ } else {
+ m_lastSeenCount = 0;
+ m_lastSeen = c;
+ }
+
+ if (m_lastSeen != UnknownOrientation && m_lastSeen != m_current && m_lastSeenCount > 4) {
+ m_current = m_lastSeen;
+ emit orientationChanged();
+ printf("%d\n", m_current);
+ }
+ }
+
+signals:
+ void changed();
+
+private:
+ Orientation m_current;
+ Orientation m_lastSeen;
+ int m_lastSeenCount;
+
+ Orientation get()
+ {
+ Orientation o = UnknownOrientation;
+
+ int ax, ay, az;
+
+ read(&ax, &ay, &az);
+
+ if (abs(az) > 850) {
+ o = UnknownOrientation;
+ } else if (ax < -750) {
+ o = Portrait;
+ } else if (ay < -750) {
+ o = Landscape;
+ }
+
+ return o;
+ }
+
+ int read(int *ax,int *ay,int *az)
+ {
+ static const char *accel_filename = "/sys/class/i2c-adapter/i2c-3/3-001d/coord";
+
+ FILE *fd;
+ int rs;
+ fd = fopen(accel_filename, "r");
+ if(fd==NULL){ printf("liqaccel, cannot open for reading\n"); return -1;}
+ rs=fscanf((FILE*) fd,"%i %i %i",ax,ay,az);
+ fclose(fd);
+ if(rs != 3){ printf("liqaccel, cannot read information\n"); return -2;}
+ return 0;
+ }
+};
+
+
+DeviceOrientation* DeviceOrientation::instance()
+{
+ static MaemoOrientation *o = 0;
+ if (!o)
+ o = new MaemoOrientation;
+ return o;
+}
+
+#include "deviceorientation_maemo.moc"