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 #include <hbglobal.h>

    26 #ifdef HB_FILTER_EFFECTS

    27 

    28 #include "hbeffecthsl_p.h"

    29 #include "hbeffectgroup_p.h"

    30 #include "hbeffectdef_p.h"

    31 #include "hbvgchainedeffect_p.h"

    32 #include "hbvghsleffect_p.h"

    33 #include "hbeffectfilter_p.h"

    34 #include <QGraphicsItem>

    35 #include <QtDebug>

    36 

    37 // -----------------------------------------------------------------------------

    38 

    39 // HbEffectHsl

    40 

    41 HbEffectHsl::HbEffectHsl(

    42     const HbEffectFxmlFilterData &data,

    43     QGraphicsItem *item,

    44     HbEffectGroup *group) :

    45         HbEffectFilter(0, item, group),

    46         mAnimationO(0),

    47         mAnimationH(0),

    48         mAnimationS(0),

    49         mAnimationL(0),

    50         mVgHsl(0)

    51 {

    52     // Default values of if something is not passed in FXML

    53     qreal opacity_start = 1;

    54     qreal opacity_end = 1;

    55     qreal hue_start = 0;

    56     qreal hue_end = 0;

    57     qreal saturation_start = 1;

    58     qreal saturation_end = 1;

    59     qreal lightness_start = 0;

    60     qreal lightness_end = 0;

    61 

    62     QList<HbEffectFxmlParamData> params = data.paramData();

    63 

    64     // Handle FXML parameters

    65     Q_FOREACH(const HbEffectFxmlParamData &param, params) {

    66         if (param.name() == FXML_KEYWORD_HSL_OPACITY) {

    67             mAnimationO = createAnimation(param, opacity_start, opacity_end, group);

    68         }

    69         else if (param.name() == FXML_KEYWORD_HSL_HUE) {

    70             mAnimationH = createAnimation(param, hue_start, hue_end, group);

    71         }

    72         else if (param.name() == FXML_KEYWORD_HSL_SATURATION) {

    73             mAnimationS = createAnimation(param, saturation_start, saturation_end, group);

    74         }

    75         else if (param.name() == FXML_KEYWORD_HSL_LIGHTNESS) {

    76             mAnimationL = createAnimation(param, lightness_start, lightness_end, group);

    77         }

    78     }

    79 

    80     // Create VG effect if there were effect parameters defined

    81     if (mEffectDefined) {

    82         // Add blur effect to the filter effect chain in the effect group

    83         HbVgChainedEffect *chain = HbEffectAbstract::group()->vgEffect();

    84         

    85         mVgHsl = new HbVgHslEffect();

    86         mVgHsl->setCaching(true);

    87         

    88         chain->add(mVgHsl);

    89 

    90         // Set initial values for the effect

    91         mVgHsl->setOpacity(opacity_start);

    92         mVgHsl->setHue(hue_start);

    93         mVgHsl->setSaturation(saturation_start);

    94         mVgHsl->setLightness(lightness_start);

    95     }

    96 }

    97 

    98 HbEffectHsl::~HbEffectHsl()

    99 {

   100 }

   101 

   102 QString HbEffectHsl::name() const

   103 {

   104     return HB_EFFECT_NAME_HSL;

   105 }

   106 

   107 void HbEffectHsl::updateFilterEffect()

   108 {

   109     // Only update the graphics effect if the effect is running

   110     if (group()->isRunning()) {

   111         if (mAnimationO) {

   112             mVgHsl->setOpacity(qVariantValue<qreal>(mAnimationO->currentValue()));

   113         }

   114         if (mAnimationH) {

   115             mVgHsl->setHue(qVariantValue<qreal>(mAnimationH->currentValue()));

   116         }

   117         if (mAnimationS) {

   118             mVgHsl->setSaturation(qVariantValue<qreal>(mAnimationS->currentValue()));

   119         }

   120         if (mAnimationL) {

   121             mVgHsl->setLightness(qVariantValue<qreal>(mAnimationL->currentValue()));

   122         }

   123     }

   124 }

   125 

   126 #endif