Added first implementation of declarative radio element

Simply uses and mirrors radio tuner API directly.
Also added an example which uses the new Radio element,
the example should be functional, but cannot be tested on
current setup (lack of actual radio tuner).

Change-Id: I0f724ef239f65aef9c0640d4a3a9fa0d2e7242ed
Reviewed-on: http://codereview.qt.nokia.com/2890
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>

1 files changed, 167 insertions, 0 deletions

diff --git a/src/imports/multimedia/qdeclarativeradio_p.h b/src/imports/multimedia/qdeclarativeradio_p.h
new file mode 100644
index 000000000..89385a51d
--- /dev/null
+++ b/src/imports/multimedia/qdeclarativeradio_p.h
@@ -0,0 +1,167 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDECLARATIVERADIO_P_H
+#define QDECLARATIVERADIO_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtDeclarative/qdeclarative.h>
+#include <qradiotuner.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QDeclarativeRadio : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(State state READ state NOTIFY stateChanged)
+    Q_PROPERTY(Band band READ band WRITE setBand NOTIFY bandChanged)
+    Q_PROPERTY(int frequency READ frequency WRITE setFrequency NOTIFY frequencyChanged)
+    Q_PROPERTY(bool stereo READ stereo NOTIFY stereoStatusChanged)
+    Q_PROPERTY(StereoMode stereoMode READ stereoMode WRITE setStereoMode)
+    Q_PROPERTY(int signalStrength READ signalStrength NOTIFY signalStrengthChanged)
+    Q_PROPERTY(int volume READ volume WRITE setVolume NOTIFY volumeChanged)
+    Q_PROPERTY(bool muted READ muted WRITE setMuted NOTIFY mutedChanged)
+    Q_PROPERTY(bool searching READ searching NOTIFY searchingChanged)
+    Q_ENUMS(State)
+    Q_ENUMS(Band)
+    Q_ENUMS(Error)
+    Q_ENUMS(StereoMode)
+
+public:
+    enum State {
+        ActiveState = QRadioTuner::ActiveState,
+        StoppedState = QRadioTuner::StoppedState
+    };
+
+    enum Band {
+        AM = QRadioTuner::AM,
+        FM = QRadioTuner::FM,
+        SW = QRadioTuner::SW,
+        LW = QRadioTuner::LW,
+        FM2 = QRadioTuner::FM2
+    };
+
+    enum Error {
+        NoError = QRadioTuner::NoError,
+        ResourceError = QRadioTuner::ResourceError,
+        OpenError = QRadioTuner::OpenError,
+        OutOfRangeError = QRadioTuner::OutOfRangeError
+    };
+
+    enum StereoMode {
+        ForceStereo = QRadioTuner::ForceStereo,
+        ForceMono = QRadioTuner::ForceMono,
+        Auto = QRadioTuner::Auto
+    };
+
+    QDeclarativeRadio(QObject *parent = 0);
+    ~QDeclarativeRadio();
+
+    QDeclarativeRadio::State state() const;
+    QDeclarativeRadio::Band band() const;
+    int frequency() const;
+    QDeclarativeRadio::StereoMode stereoMode() const;
+    int volume() const;
+    bool muted() const;
+
+    bool stereo() const;
+    int signalStrength() const;
+    bool searching() const;
+
+    Q_INVOKABLE bool isAvailable() const;
+    Q_INVOKABLE int frequencyStep(QDeclarativeRadio::Band band) const;
+
+public Q_SLOTS:
+    void setBand(QDeclarativeRadio::Band band);
+    void setFrequency(int frequency);
+    void setStereoMode(QDeclarativeRadio::StereoMode stereoMode);
+    void setVolume(int volume);
+    void setMuted(bool muted);
+
+    void cancelSearch();
+    void searchBackward();
+    void searchForward();
+    void start();
+    void stop();
+
+Q_SIGNALS:
+    void stateChanged(QDeclarativeRadio::State state);
+    void bandChanged(QDeclarativeRadio::Band band);
+    void frequencyChanged(int frequency);
+    void stereoStatusChanged(bool stereo);
+    void searchingChanged(bool searching);
+    void signalStrengthChanged(int signalStrength);
+    void volumeChanged(int volume);
+    void mutedChanged(bool muted);
+
+    void errorChanged();
+    void error(QDeclarativeRadio::Error errorCode);
+
+private Q_SLOTS:
+    void _q_stateChanged(QRadioTuner::State state);
+    void _q_bandChanged(QRadioTuner::Band band);
+    void _q_error(QRadioTuner::Error errorCode);
+
+private:
+    Q_DISABLE_COPY(QDeclarativeRadio)
+
+    QRadioTuner *m_radioTuner;
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QT_PREPEND_NAMESPACE(QDeclarativeRadio))
+
+QT_END_HEADER
+
+#endif // QDECLARATIVERADIO_P_H