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 CXEZOOMCONTROLSYMBIAN_H

    18 #define CXEZOOMCONTROLSYMBIAN_H

    19 

    20 #include "cxezoomcontrol.h"

    21 #include "cxecameradevice.h" // CxeCameraDevice

    22 #include "cxestatemachine.h"

    23 #include "cxecameradevicecontrol.h"

    24 

    25 class CxeCameraDeviceControl;

    26 class CxeSettings;

    27 class CxeFeatureManager;

    28 

    29 class CxeZoomControlSymbian : public CxeZoomControl, public CxeStateMachine

    30 {

    31 Q_OBJECT

    32 

    33 public: // constructors

    34 

    35     CxeZoomControlSymbian(CxeCameraDevice &cameraDevice,

    36                           CxeCameraDeviceControl &cameraDeviceControl,

    37                           CxeSettings &settings,

    38                           CxeFeatureManager &featureManager);

    39 

    40     virtual ~CxeZoomControlSymbian();

    41 

    42 public:

    43     // from CxeZoomControl

    44     CxeZoomControl::State state() const;

    45     int min() const;

    46     int max() const;

    47     void zoomTo(int value);

    48 

    49 protected:

    50     // from CxeStateMachine

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

    52 

    53 protected slots:

    54 

    55     // Slot to react to still capture signal:

    56     // prepares the zoom control for still.

    57     void prepareZoomForStill(int ecamStillResolutionIndex);

    58     

    59     // Slot to react to video capture signal:

    60     // prepares the zoom control for video.

    61     void prepareZoomForVideo();

    62 

    63     // Slot to prepare for camera delete signal.

    64     void reset();

    65 

    66     // slot for setting value change

    67     void handleSettingValueChanged(const QString& settingId,QVariant newValue);

    68 

    69 private:

    70     // private member functions

    71     void init();

    72     void initializeStates();

    73     void finalizeZoomPreparation(int error);

    74 

    75 private:

    76     // private data

    77 

    78     CxeCameraDevice &mCameraDevice;

    79     CxeCameraDeviceControl &mCameraDeviceControl;

    80     CxeSettings &mSettings;

    81 

    82     // Zoom levels

    83     int mCurrentZoomLevel;

    84     int mMinZoomLevel;

    85     int mMaxZoomLevel;

    86 

    87     // The RArray is used to map the integers between "min" and "max" to adaptation understandable values.

    88     RArray<TInt> mDigitalZoomValues;

    89     TValueInfo mDigitalZoomValueInfo;

    90 

    91     // values ready from feature manager.

    92     QList<int> mStillMaxZoomLimits;

    93     QList<int> mVideoMaxZoomLimits;

    94 };

    95 

    96 #endif // CXEZOOMCONTROLSYMBIAN_H