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 <QImageReader>

    19 #include <QRect>

    20 

    21 #include "hswallpaperloaderthread.h"

    22 

    23 

    24 /*!

    25     \class HsWallpaperLoaderThread

    26     \ingroup group_hsdomainmodel

    27     \brief 

    28 */

    29 

    30 /*!

    31 

    32 */

    33 HsWallpaperLoaderThread::HsWallpaperLoaderThread(QObject *parent)

    34   : QThread(parent),

    35     mResult(false)

    36 {

    37 }

    38 

    39 /*!

    40 

    41 */

    42 HsWallpaperLoaderThread::~HsWallpaperLoaderThread()

    43 {

    44 }

    45 

    46 /*!

    47     \internal

    48     Scales and crops source image using target rect.

    49     Centers target rect automatically.

    50     Saves scaled and cropped image as given target.

    51     Result can be read when finished by using result().

    52 */

    53 void HsWallpaperLoaderThread::run() 

    54 {

    55     mResult = true;

    56     QImageReader imageReader(mSourcePath);

    57     QRect clipRect(QPoint(), mTargetSize);

    58     

    59     if (imageReader.canRead()) {

    60         QSize sourceSize = imageReader.size();

    61         

    62         //Scale image's size to target's dimensions

    63         sourceSize.scale(clipRect.width(), clipRect.height(),

    64                          Qt::KeepAspectRatioByExpanding);

    65         imageReader.setScaledSize(sourceSize);

    66 

    67         //Crop center part of the scaled image as a target image

    68         clipRect.moveCenter(QPoint(sourceSize.width() / 2, sourceSize.height() / 2));

    69         imageReader.setScaledClipRect(clipRect);

    70 

    71         mResult = imageReader.read().save(mTargetPath);

    72     } else {

    73         mResult = false;

    74     }

    75 }