1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (developer.feedback@nokia.com)

     6 **

     7 ** This file is part of the HbCore module of the UI Extensions for Mobile.

     8 **

     9 ** GNU Lesser General Public License Usage

    10 ** This file may be used under the terms of the GNU Lesser General Public

    11 ** License version 2.1 as published by the Free Software Foundation and

    12 ** appearing in the file LICENSE.LGPL included in the packaging of this file.

    13 ** Please review the following information to ensure the GNU Lesser General

    14 ** Public License version 2.1 requirements will be met:

    15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    16 **

    17 ** In addition, as a special exception, Nokia gives you certain additional

    18 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    20 **

    21 ** If you have questions regarding the use of this file, please contact

    22 ** Nokia at developer.feedback@nokia.com.

    23 **

    24 ****************************************************************************/

    25 

    26 #include "hbvgshadoweffect_p.h"

    27 #include "hbvgoutlineeffect_p_p.h"

    28 #include <QPainter>

    29 

    30 /*!

    31  * \class HbVgShadowEffect

    32  *

    33  * \brief OpenVG-based dropshadow filter effect.

    34  *

    35  * \internal

    36  */

    37 

    38 HbVgShadowEffect::HbVgShadowEffect(QObject *parent)

    39     : HbVgOutlineEffect(parent)

    40 {

    41 }

    42 

    43 HbVgShadowEffect::HbVgShadowEffect(HbVgOutlineEffectPrivate &dd, QObject *parent)

    44     : HbVgOutlineEffect(dd, parent)

    45 {

    46 }

    47 

    48 HbVgShadowEffect::~HbVgShadowEffect()

    49 {

    50 }

    51 

    52 void HbVgShadowEffect::performEffect(QPainter *painter,

    53                                    const QPointF &offset,

    54                                    const QVariant &vgImage,

    55                                    const QSize &vgImageSize)

    56 {

    57 #ifdef HB_EFFECTS_OPENVG

    58     Q_D(HbVgOutlineEffect);

    59     QPixmap outlinePm = makeOutline(vgImage, vgImageSize);

    60     // Draw the shadow. Note that this paints also outside of our bounding

    61     // rectangle but all those pixels (that fall outside of our rect) are

    62     // transparent. This should be more effective than trying to get the shadow

    63     // translated already in outlinePm.

    64     painter->drawPixmap(offset + d->mapOffset(d->offset), outlinePm);

    65     // Draw the source.

    66     painter->drawPixmap(offset, d->srcPixmap);

    67 #else

    68     Q_UNUSED(painter);

    69     Q_UNUSED(offset);

    70     Q_UNUSED(vgImage);

    71     Q_UNUSED(vgImageSize);

    72 #endif

    73 }