1 /*

     2 * Copyright (c) 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 

    18 #include "cxecameradevicedesktop.h"

    19 

    20 #include <QTimer>

    21 #include <QDir>

    22 #include "cxutils.h"

    23 

    24 

    25 /*!

    26 * Constructor

    27 */

    28 CxeCameraDeviceDesktop::CxeCameraDeviceDesktop() :

    29         mSwitchPictureTimer(0),

    30         mPictureIndex(0)

    31 {

    32     CX_DEBUG_ENTER_FUNCTION();

    33     loadPictures();

    34     setupTimer();

    35     CX_DEBUG_EXIT_FUNCTION();

    36 }

    37 

    38 /*!

    39 * Destructor

    40 */

    41 CxeCameraDeviceDesktop::~CxeCameraDeviceDesktop()

    42 {

    43     CX_DEBUG_ENTER_FUNCTION();

    44     mSwitchPictureTimer->stop();

    45     delete mSwitchPictureTimer;

    46     CX_DEBUG_EXIT_FUNCTION();

    47 }

    48 

    49 /*!

    50 * Start the camera device

    51 */

    52 void CxeCameraDeviceDesktop::start()

    53 {

    54     CX_DEBUG_ENTER_FUNCTION();

    55     if (!mSwitchPictureTimer->isActive()) {

    56         mSwitchPictureTimer->start();

    57     CX_DEBUG_EXIT_FUNCTION();

    58     }

    59 }

    60 

    61 /*!

    62 * Stop the camera device

    63 */

    64 void CxeCameraDeviceDesktop::stop()

    65 {

    66     CX_DEBUG_ENTER_FUNCTION();

    67     mSwitchPictureTimer->stop();

    68     CX_DEBUG_EXIT_FUNCTION();

    69 }

    70 

    71 /*!

    72 * Get current picture

    73 * @ Return current picture

    74 */

    75 const QPixmap &CxeCameraDeviceDesktop::currentSnaphot()

    76 {

    77     return mPictureList.at(mPictureIndex);

    78 }

    79 

    80 /*!

    81 * Handle timeout

    82 */

    83 void CxeCameraDeviceDesktop::handleTimeout()

    84 {

    85     CX_DEBUG_ENTER_FUNCTION();

    86     mPictureIndex++;

    87 

    88     if (mPictureIndex >= mPictureList.count()) {

    89         mPictureIndex = 0;

    90     }

    91     

    92     emit imageChanged(mPictureList.at(mPictureIndex));

    93     CX_DEBUG_EXIT_FUNCTION();

    94 }

    95 

    96 /*!

    97 * Load pictures

    98 */

    99 void CxeCameraDeviceDesktop::loadPictures()

   100 {

   101     CX_DEBUG_ENTER_FUNCTION();

   102     QDir currentDir(".","*.jpg");

   103 

   104     if (!currentDir.count()) {

   105         mPictureList.append(QPixmap(360, 640));

   106         return;

   107     }

   108 

   109     foreach (QString entry, currentDir.entryList()){

   110         mPictureList.append(QPixmap(entry).scaledToHeight(360));

   111     }

   112     CX_DEBUG_EXIT_FUNCTION();

   113 }

   114 

   115 /*!

   116 * Create timer

   117 */

   118 void CxeCameraDeviceDesktop::setupTimer()

   119 {

   120     CX_DEBUG_ENTER_FUNCTION();

   121     mSwitchPictureTimer = new QTimer(this);

   122     mSwitchPictureTimer->setInterval(500);

   123     mSwitchPictureTimer->setSingleShot(false);

   124     connect(mSwitchPictureTimer, SIGNAL(timeout()), this, SLOT(handleTimeout()));

   125     CX_DEBUG_EXIT_FUNCTION();

   126 }