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 #include <w32std.h> // RWindow, RWsSession.

    18 #include <coemain.h> // CCoeEnv

    19 #include <coecntrl.h>

    20 #include "cxutils.h"

    21 #include "cxecameradevicecontrolsymbian.h" // CxeCameraDevice

    22 #include "cxuifakeviewfindercontrol.h"

    23 #include "cxesettings.h"

    24 #include "cxesettingsmappersymbian.h"

    25 

    26 

    27 /*

    28 * CxuiFakeViewfinderControl::CxuiFakeViewfinderControl

    29 */

    30 CxuiFakeViewfinderControl::CxuiFakeViewfinderControl(

    31     CxeCameraDevice &cameraDevice,

    32     CxeCameraDeviceControlSymbian &cameraDeviceControl )

    33     : CxeViewfinderControlSymbian(cameraDevice, cameraDeviceControl),

    34       mCameraDevice(cameraDevice),

    35       mCameraDeviceControl(cameraDeviceControl),

    36       mWindow(NULL),

    37       mDirectViewfinder(NULL),

    38       mDirectViewfinderInUse(true)

    39 {

    40     CX_DEBUG_IN_FUNCTION();

    41 }

    42 

    43 

    44 

    45 /*

    46 * CxuiFakeViewfinderControl::~CxuiFakeViewfinderControl()

    47 */

    48 CxuiFakeViewfinderControl::~CxuiFakeViewfinderControl()

    49 {

    50     CX_DEBUG_ENTER_FUNCTION();

    51 

    52     stop();

    53 

    54     CX_DEBUG_EXIT_FUNCTION();

    55 }

    56 

    57 

    58 /*

    59 * Stop viewfinder

    60 */

    61 void CxuiFakeViewfinderControl::stop()

    62 {

    63     CX_DEBUG_ENTER_FUNCTION();

    64 

    65     if (state() == Running) {

    66         setState(Ready);

    67     }

    68 

    69     CX_DEBUG_EXIT_FUNCTION();

    70 }

    71 

    72 

    73 /**

    74  * Start the viewfinder

    75  */

    76 

    77 int CxuiFakeViewfinderControl::start()

    78 {

    79     CX_DEBUG_ENTER_FUNCTION();

    80     TInt err = KErrNone;

    81     

    82     if (state() == Running) {

    83         CX_DEBUG( ( "Viewfinder already running - ignored start()" ) );

    84         CX_DEBUG_EXIT_FUNCTION();

    85         return 0;

    86     }

    87 

    88     if (state() == Uninitialized) {

    89         err = initViewfinder();

    90     }

    91 

    92     // apply any settings here

    93 

    94     if (!err  && state() == Ready) {

    95         setState( Running );

    96     }

    97 

    98     CX_DEBUG(("CxuiFakeViewfinderControl::start symbian error code : %d", err));

    99     CX_DEBUG_EXIT_FUNCTION();

   100     return err;

   101 }

   102 

   103 

   104 /*

   105 * Intialize the viewfinder based on the VF mode

   106 */ 

   107 

   108 int CxuiFakeViewfinderControl::initViewfinder()

   109 {

   110     CX_DEBUG_ENTER_FUNCTION();

   111 

   112     // For now only direct vf. If there is any need for supporting other VF modes, condition checks

   113     // and handling of new states are needed here. 

   114     setState(Ready);

   115 

   116     CX_DEBUG_EXIT_FUNCTION();

   117     return KErrNone;

   118 }

   119 

   120 /*

   121 * Release Vf, when we change mode or during shutdown or ?

   122 */ 

   123 

   124 void CxuiFakeViewfinderControl::releaseCurrentViewfinder()

   125 {

   126     CX_DEBUG_ENTER_FUNCTION(); 

   127 

   128     setState(Uninitialized);

   129 

   130     CX_DEBUG_EXIT_FUNCTION();

   131 }

   132 

   133 CxeViewfinderControl::State CxuiFakeViewfinderControl::state() const

   134 {

   135     return static_cast<State>(stateId());

   136 }

   137 

   138 void CxuiFakeViewfinderControl::handleStateChanged(int newStateId, CxeError::Id error)

   139 {

   140     emit stateChanged(static_cast<State>(newStateId), error);

   141 }

   142 

   143 // end of file