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: Menu All Applications state.

    15  *

    16  */

    17 

    18 #include <QPainter>

    19 #include <QSize>

    20 #include <QTimer>

    21 #include "hsmenuitemmodel.h"

    22 #include "hsiconsidleloader.h"

    23 

    24 /*!

    25  Constructor

    26  \param model with defined icons

    27  \param pointer to parent object

    28  */

    29 HsIconsIdleLoader::HsIconsIdleLoader(HsMenuItemModel *model, QObject *parent):

    30     QObject(parent),

    31     mModel(model),

    32     mTimer(NULL),

    33     mIconSize(mModel->getIconSize())

    34 {

    35     mTimer = new QTimer(this);

    36     mOutStandingIconToLoad = mModel->rowCount();

    37     connect(mTimer, SIGNAL(timeout()), this, SLOT(processWhenIdle()));

    38     mTimer->start(0); // NOTE: zero for idle

    39 }

    40 

    41 /*!

    42  Destructor

    43  */

    44 HsIconsIdleLoader::~HsIconsIdleLoader()

    45 {

    46     mTimer->stop();

    47 }

    48 

    49 /*!

    50  Preloading icons if idle

    51  \retval void

    52  */

    53 void HsIconsIdleLoader::processWhenIdle()

    54 {

    55     if (mOutStandingIconToLoad >= 1 

    56         && mModel->rowCount() >= mOutStandingIconToLoad ) {

    57     	QPixmap pixmap(mIconSize.toSize());

    58     	pixmap.fill(Qt::transparent);

    59 

    60         QModelIndex idx = mModel->index(mOutStandingIconToLoad -1);

    61         HbIcon icon = mModel->entry(idx)->makeIcon(mIconSize);

    62         icon.setSize(mIconSize);

    63         // creating raster data

    64         QPainter painter;

    65         painter.begin(&pixmap);

    66         icon.paint(&painter, QRectF(QPointF(), mIconSize), 

    67                      Qt::KeepAspectRatio, 

    68                      Qt::AlignCenter, 

    69                      QIcon::Normal, 

    70                      QIcon::Off);

    71         painter.end();

    72         --mOutStandingIconToLoad;

    73     } else {

    74     	mTimer->stop(); // No more timing

    75 	}

    76 }

    77