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/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 S60CAMERACONTROL_H
#define S60CAMERACONTROL_H
#include <qcameracontrol.h>
#include "s60cameraengineobserver.h" // MCameraEngineObserver
#include "s60videocapturesession.h" // TVideoCaptureState
#include "s60cameraviewfinderengine.h" // ViewfinderOutputType
#include <e32base.h>
#include <fbs.h>
QT_USE_NAMESPACE
class S60CameraService;
class S60ImageCaptureSession;
class S60VideoCaptureSession;
class S60CameraSettings;
class CCameraEngine;
class S60CameraViewfinderEngine;
class QTimer;
/*
* Control for controlling camera base operations (e.g. start/stop and capture
* mode).
*/
class S60CameraControl : public QCameraControl, public MCameraEngineObserver
{
Q_OBJECT
public: // Constructors & Destructor
S60CameraControl(QObject *parent = 0);
S60CameraControl(S60VideoCaptureSession *videosession,
S60ImageCaptureSession *imagesession,
QObject *parent = 0);
~S60CameraControl();
public: // QCameraControl
// State
QCamera::State state() const;
void setState(QCamera::State state);
// Status
QCamera::Status status() const;
// Capture Mode
QCamera::CaptureMode captureMode() const;
void setCaptureMode(QCamera::CaptureMode);
bool isCaptureModeSupported(QCamera::CaptureMode mode) const;
// Property Setting
bool canChangeProperty(QCameraControl::PropertyChangeType changeType, QCamera::Status status) const;
/*
Q_SIGNALS:
void stateChanged(QCamera::State);
void statusChanged(QCamera::Status);
void error(int error, const QString &errorString);
void captureModeChanged(QCamera::CaptureMode);
*/
public: // Internal
void setError(const TInt error, const QString &description);
void resetCameraOrientation();
// To provide QVideoDeviceControl info
static int deviceCount();
static QString name(const int index);
static QString description(const int index);
int defaultDevice() const;
int selectedDevice() const;
void setSelectedDevice(const int index);
void setVideoOutput(QObject *output,
const S60CameraViewfinderEngine::ViewfinderOutputType type);
void releaseVideoOutput(const S60CameraViewfinderEngine::ViewfinderOutputType type);
private slots: // Internal Slots
void videoStateChanged(const S60VideoCaptureSession::TVideoCaptureState state);
// Needed to detect image capture completion when trying to rotate the camera
void imageCaptured(const int imageId, const QImage& preview);
/*
* This method moves the camera to the StandBy status:
* - If camera access was lost
* - If camera has been inactive in LoadedStatus for a long time
*/
void toStandByStatus();
void advancedSettingsCreated();
protected: // MCameraEngineObserver
void MceoCameraReady();
void MceoHandleError(TCameraEngineError aErrorType, TInt aError);
private: // Internal
QCamera::Error fromSymbianErrorToQtMultimediaError(int aError);
void loadCamera();
void unloadCamera();
void startCamera();
void stopCamera();
void resetCamera(bool errorHandling = false);
void setCameraHandles();
signals: // Internal Signals
void cameraReadyChanged(bool);
void devicesChanged();
private: // Data
CCameraEngine *m_cameraEngine;
S60CameraViewfinderEngine *m_viewfinderEngine;
S60ImageCaptureSession *m_imageSession;
S60VideoCaptureSession *m_videoSession;
S60CameraSettings *m_advancedSettings;
QObject *m_videoOutput;
QTimer *m_inactivityTimer;
QCamera::CaptureMode m_captureMode;
QCamera::CaptureMode m_requestedCaptureMode;
bool m_settingCaptureModeInternally;
QCamera::Status m_internalState;
QCamera::State m_requestedState;
int m_deviceIndex;
mutable int m_error;
bool m_changeCaptureModeWhenReady;
bool m_rotateCameraWhenReady;
S60VideoCaptureSession::TVideoCaptureState m_videoCaptureState;
};
#endif // S60CAMERACONTROL_H
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