Add Screen element in QmlViewr Module including orientation property.

Add support for automatic Maemo rotation update.

5 files changed, 328 insertions, 3 deletions

diff --git a/tools/qmlviewer/deviceorientation.cpp b/tools/qmlviewer/deviceorientation.cpp
new file mode 100644
index 0000000..c507479
--- /dev/null
+++ b/tools/qmlviewer/deviceorientation.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** 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"
+
+class DefaultDeviceOrientation : public DeviceOrientation
+{
+    Q_OBJECT
+public:
+    DefaultDeviceOrientation() : DeviceOrientation(), m_orientation(DeviceOrientation::Portrait) {}
+
+    Orientation orientation() const {
+        return m_orientation;
+    }
+
+    void setOrientation(Orientation o) {
+        if (o != m_orientation) {
+            m_orientation = o;
+            emit orientationChanged();
+        }
+    }
+
+    Orientation m_orientation;
+};
+
+DeviceOrientation* DeviceOrientation::instance()
+{
+    static DefaultDeviceOrientation *o = 0;
+    if (!o)
+        o = new DefaultDeviceOrientation;
+    return o;
+}
+
+#include "deviceorientation.moc"
+
diff --git a/tools/qmlviewer/deviceorientation.h b/tools/qmlviewer/deviceorientation.h
new file mode 100644
index 0000000..fa7758f
--- /dev/null
+++ b/tools/qmlviewer/deviceorientation.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef ORIENTATION_H
+#define ORIENTATION_H
+
+#include <QObject>
+
+class DeviceOrientationPrivate;
+class DeviceOrientation : public QObject
+{
+    Q_OBJECT
+public:
+    enum Orientation { UnknownOrientation, Portrait, Landscape };
+    virtual Orientation orientation() const = 0;
+    virtual void setOrientation(Orientation) = 0;
+
+    static DeviceOrientation *instance();
+
+signals:
+    void orientationChanged();
+
+protected:
+    DeviceOrientation() {}
+
+private:
+    DeviceOrientationPrivate *d_ptr;
+    friend class DeviceOrientationPrivate;
+};
+
+#endif
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"
diff --git a/tools/qmlviewer/qmlviewer.cpp b/tools/qmlviewer/qmlviewer.cpp
index a354653..8c50b09 100644
--- a/tools/qmlviewer/qmlviewer.cpp
+++ b/tools/qmlviewer/qmlviewer.cpp
@@ -74,6 +74,7 @@
 #include <QNetworkProxyFactory>
 #include <QKeyEvent>
 #include "proxysettings.h"
+#include "deviceorientation.h"
 
 #ifdef GL_SUPPORTED
 #include <QGLWidget>
@@ -84,6 +85,43 @@
 QT_BEGIN_NAMESPACE
 
 
+class Screen : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(Orientation orientation READ orientation NOTIFY orientationChanged)
+    Q_ENUMS(Orientation)
+
+public:
+    Screen(QObject *parent=0) : QObject(parent) {
+        m_screens.append(this);
+        connect(DeviceOrientation::instance(), SIGNAL(orientationChanged()),
+                this, SIGNAL(orientationChanged()));
+    }
+    ~Screen() { m_screens.removeAll(this); }
+
+    enum Orientation { UnknownOrientation = DeviceOrientation::UnknownOrientation,
+                       Portrait = DeviceOrientation::Portrait,
+                       Landscape = DeviceOrientation::Landscape };
+    Orientation orientation() const { return Orientation(DeviceOrientation::instance()->orientation()); }
+    static void setOrientation(Orientation orient) {
+        if (orient != Orientation(DeviceOrientation::instance()->orientation())) {
+            DeviceOrientation::instance()->setOrientation(DeviceOrientation::Orientation(orient));
+        }
+    }
+
+signals:
+    void orientationChanged();
+
+private:
+    static QList<Screen*> m_screens;
+};
+
+QList<Screen*> Screen::m_screens;
+
+QML_DECLARE_TYPE(Screen)
+QML_DEFINE_TYPE(QmlViewer, 1, 0, Screen, Screen)
+
 class SizedMenuBar : public QMenuBar
 {
     Q_OBJECT
@@ -532,13 +570,13 @@ void QmlViewer::proxySettingsChanged()
 
 void QmlViewer::setPortrait()
 {
-    canvas->rootContext()->setContextProperty("orientation", "Portrait");
+    Screen::setOrientation(Screen::Portrait);
     portraitOrientation->setChecked(true);
 }
 
 void QmlViewer::setLandscape()
 {
-    canvas->rootContext()->setContextProperty("orientation", "Landscape");
+    Screen::setOrientation(Screen::Landscape);
     landscapeOrientation->setChecked(true);
 }
 
diff --git a/tools/qmlviewer/qmlviewer.pro b/tools/qmlviewer/qmlviewer.pro
index ed26d00..4d5effd 100644
--- a/tools/qmlviewer/qmlviewer.pro
+++ b/tools/qmlviewer/qmlviewer.pro
@@ -15,11 +15,17 @@ contains(QT_CONFIG, opengl) {
 # Input
 HEADERS += qmlviewer.h \
            proxysettings.h \
-           qfxtester.h 
+           qfxtester.h \
+           deviceorientation.h
 SOURCES += main.cpp \
            qmlviewer.cpp \
            proxysettings.cpp \
            qfxtester.cpp
+maemo: {
+    SOURCES += deviceorientation_maemo.cpp
+} else {
+    SOURCES += deviceorientation.cpp
+}
 FORMS = recopts.ui \
     proxysettings.ui
 INCLUDEPATH += ../../include/QtDeclarative