1 /*

     2 * Copyright (c) 2009 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 

    22 #include "cxecameradevicecontrol.h"

    23 #include "cxecameradevice.h"

    24 #include "cxestatemachine.h"

    25 #include "cxeerror.h"

    26 

    27 class CxeCameraDeviceControlSymbian : public CxeCameraDeviceControl,

    28                                       public CxeStateMachine,

    29                                       public MCameraObserver2

    30 {

    31     Q_OBJECT

    32 

    33 public:

    34 

    35     CxeCameraDeviceControlSymbian();

    36     virtual ~CxeCameraDeviceControlSymbian();

    37 

    38 public: // from CxeCameraDeviceControl

    39 

    40     /**

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

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

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

    44     */

    45     void init();

    46     Cxe::CameraMode mode() const;

    47     void setMode(Cxe::CameraMode mode);

    48     void reserve();

    49     void release();

    50     Cxe::CameraIndex cameraIndex() const;

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

    52     State state() const;

    53     CxeCameraDevice *cameraDevice();

    54 

    55 protected: // from CxeStateMachine

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

    57 

    58 protected:

    59     void initializeStates();

    60     void powerOn();

    61     void prepare(int mode);

    62     void releaseCurrentCamera();

    63     void doHandleEvent(const TECAMEvent &aEvent);

    64     void handleReserveComplete(int error);

    65     void handlePowerOnComplete(int error);

    66     void handleNoLongerReserved(int error);

    67 

    68 protected: // from MCameraObserver2

    69     void HandleEvent(const TECAMEvent &aEvent);

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

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

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

    73 

    74 signals:

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

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

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

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

    79 

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

    81            // mCameraDevice with a fake implementation.

    82     CxeCameraDevice *mCameraDevice; // own

    83 

    84 protected: // data

    85     Cxe::CameraIndex mCameraIndex;

    86     Cxe::CameraMode  mCameraMode;

    87 };

    88 

    89 #endif  // CXECAMERADEVICECONTROLSYMBIAN_H

    90