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 

    18 #include <QString>

    19 #include <thumbnailmanager_qt.h>

    20 

    21 #include "cxutils.h"

    22 #include "cxethumbnailmanagersymbian.h"

    23 

    24 

    25 

    26 

    27 /*!

    28 * CxeThumbnailManagerSymbian::CxeThumbnailManagerSymbian

    29 */

    30 CxeThumbnailManagerSymbian::CxeThumbnailManagerSymbian()

    31 {

    32     CX_DEBUG_ENTER_FUNCTION();

    33 

    34     mThumbnailManager = new ThumbnailManager();

    35 

    36     // connect thumbnail ready signal from thumbnailmanager

    37     connect(mThumbnailManager, SIGNAL(thumbnailReady(QPixmap, void *, int, int)),

    38             this, SLOT(thumbnailReady(QPixmap, void *, int, int)));

    39 

    40     CX_DEBUG_EXIT_FUNCTION();

    41 }

    42 

    43 

    44 /*!

    45 * CxeThumbnailManagerSymbian::~CxeThumbnailManagerSymbian

    46 */

    47 CxeThumbnailManagerSymbian::~CxeThumbnailManagerSymbian()

    48 {

    49     CX_DEBUG_ENTER_FUNCTION();

    50 

    51     mThumbnailRequests.clear();

    52     delete mThumbnailManager;

    53 

    54     CX_DEBUG_EXIT_FUNCTION();

    55 }

    56 

    57 

    58 

    59 /*!

    60 * Creates a thumbnail based on the snapshot data.

    61 @param filename - name of the image/video filename

    62 @param snapshot - snapshot data from image/video

    63 */

    64 void CxeThumbnailManagerSymbian::createThumbnail(const QString &filename,

    65                                                  const QImage &snapshot)

    66 {

    67     CX_DEBUG_ENTER_FUNCTION();

    68 

    69     TPtrC16 fName(reinterpret_cast<const TUint16*>(filename.utf16()));

    70     CX_DEBUG(("Create thumbnail! filename = %s", filename.toAscii().constData()));

    71 

    72     if (mThumbnailManager) {

    73         CX_DEBUG(("creating thumbnails"));

    74         int thumbnailId = mThumbnailManager->setThumbnail(snapshot, filename);

    75         if (thumbnailId != -1) {

    76             CX_DEBUG(("Thumbnail ID = %d", thumbnailId));

    77             mThumbnailRequests.insert(filename, thumbnailId);

    78         } else {

    79             CX_DEBUG(("error initializing data to thumbnail manager"));

    80         }

    81     }

    82 

    83     CX_DEBUG_EXIT_FUNCTION();

    84 }

    85 

    86 

    87 

    88 /*!

    89 * start canceling creating thumbnail operation

    90 */

    91 void CxeThumbnailManagerSymbian::cancelThumbnail(const QString& filename)

    92 {

    93     CX_DEBUG_ENTER_FUNCTION();

    94 

    95     if (mThumbnailRequests.contains(filename)) {

    96         int thumbnailId = mThumbnailRequests.value(filename);

    97         if (mThumbnailManager &&

    98             mThumbnailManager->cancelRequest(thumbnailId)) {

    99             // thumbnail creation cancelled sucessfully

   100             mThumbnailRequests.remove(filename);

   101         }

   102     }

   103 

   104     CX_DEBUG_EXIT_FUNCTION();

   105 }

   106 

   107 

   108 /**!

   109 * Slot that notifies when final thumbnail bitmap generation or loading is complete.

   110 * @param pixmap     An object representing the resulting thumbnail.

   111 * @param clientData Client data

   112 * @param id         Request ID for the operation

   113 * @param errorCode  error code

   114 */

   115 void CxeThumbnailManagerSymbian::thumbnailReady(QPixmap thumbnail, void * data, int id, int error)

   116 {

   117 

   118     CX_DEBUG_ENTER_FUNCTION();

   119 

   120     Q_UNUSED(thumbnail);

   121     Q_UNUSED(data);

   122 

   123     CX_DEBUG(("CxeThumbnailManagerSymbian::thumbnailReady error = %d", error));

   124 

   125     QString key;

   126     QHash<QString, int>::const_iterator i = mThumbnailRequests.constBegin();

   127 

   128     while (i != mThumbnailRequests.constEnd()) {

   129         if (i.value() == id) {

   130             key = i.key();

   131             break;

   132         }

   133         ++i;

   134     }

   135 

   136     if (mThumbnailRequests.contains(key)) {

   137         CX_DEBUG(("Thumbnail created for filename = %s", key.toAscii().constData()));

   138         mThumbnailRequests.remove(key);

   139     }

   140 

   141     CX_DEBUG_EXIT_FUNCTION();

   142 }