1 /*

     2 * Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 #ifndef CXECAMERADEVICECONTROLSYMBIAN_H

    18 #define CXECAMERADEVICECONTROLSYMBIAN_H

    19 

    20 //  Include Files

    21 #include <QTimer>

    22 

    23 #include "cxecameradevicecontrol.h"

    24 #include "cxecameradevice.h"

    25 #include "cxestatemachine.h"

    26 #include "cxeerror.h"

    27 

    28 class CxeCameraDeviceControlSymbian : public CxeCameraDeviceControl,

    29                                       public CxeStateMachine,

    30                                       public MCameraObserver2

    31 {

    32     Q_OBJECT

    33 

    34 public:

    35 

    36     CxeCameraDeviceControlSymbian();

    37     virtual ~CxeCameraDeviceControlSymbian();

    38 

    39 public: // from CxeCameraDeviceControl

    40 

    41     /**

    42     * Calls newCamera and emits initModeComplete() on error.

    43     * This is in a separate method and not in the constructor so that

    44     * newCamera() can be properly overridden in derived classes.

    45     */

    46     void init();

    47     Cxe::CameraMode mode() const;

    48     void setMode(Cxe::CameraMode mode);

    49     void reserve();

    50     void release();

    51     Cxe::CameraIndex cameraIndex() const;

    52     CxeError::Id switchCamera(Cxe::CameraIndex index);

    53     State state() const;

    54     CxeCameraDevice *cameraDevice();

    55 

    56 protected: // from CxeStateMachine

    57     void handleStateChanged(int newStateId, CxeError::Id error);

    58 

    59 protected:

    60     void initializeStates();

    61     void powerOn();

    62     void prepare(int mode);

    63     void releaseCurrentCamera();

    64     void doHandleEvent(const TECAMEvent &aEvent);

    65     void handleReserveComplete(int error);

    66     void handlePowerOnComplete(int error);

    67     void handleNoLongerReserved(int error);

    68 

    69 protected: // from MCameraObserver2

    70     void HandleEvent(const TECAMEvent &aEvent);

    71     void ViewFinderReady(MCameraBuffer &aCameraBuffer, TInt aError);

    72     void ImageBufferReady(MCameraBuffer &aCameraBuffer, TInt aError);

    73     void VideoBufferReady(MCameraBuffer &aCameraBuffer, TInt aError);

    74 

    75 signals:

    76     void cameraEvent(int eventUid, int error); // ECam events

    77     void imageBufferReady(MCameraBuffer* buffer, int error);

    78     void deviceReady(); // device is ready to prepared in either still or video mode

    79     void vfFrameReady(MCameraBuffer* buffer, int error);

    80 

    81 private slots:

    82     void doReserve();

    83 

    84 protected: // Protected data so that unit test cases can replace

    85            // mCameraDevice with a fake implementation.

    86     CxeCameraDevice *mCameraDevice; // own

    87 

    88 protected: // data

    89     Cxe::CameraIndex mCameraIndex;

    90     Cxe::CameraMode  mCameraMode;

    91     QTimer mReserveTimer;

    92 };

    93 

    94 #endif  // CXECAMERADEVICECONTROLSYMBIAN_H

    95