--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbcore/effects/hbeffectopacity.cpp	Mon Apr 19 14:02:13 2010 +0300
@@ -0,0 +1,196 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (developer.feedback@nokia.com)
+**
+** This file is part of the HbCore module of the UI Extensions for Mobile.
+**
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at developer.feedback@nokia.com.
+**
+****************************************************************************/
+#include "hbeffectopacity_p.h"
+#include "hbeffectutils_p.h"
+#include "hbeffectgroup_p.h"
+#include "hbeffectdef_p.h"
+#include <QGraphicsItem>
+#include <QRectF>
+#include <QtDebug>
+
+HbEffectOpacityAnimation::HbEffectOpacityAnimation(
+    HbEffectGroup *group,
+    int duration ) :
+        HbEffectAnimation(),
+        group(group)
+{
+    setDuration(duration);
+}
+
+void HbEffectOpacityAnimation::handleAnimationUpdate(const QVariant &value)
+{
+    qreal opacity = qVariantValue<qreal>(value);
+    group->targetItem()->setOpacity(opacity);
+}
+
+void HbEffectOpacityAnimation::handleAnimationFinish()
+{
+    group->effectFinished();
+}
+
+// -----------------------------------------------------------------------------
+
+// HbEffectOpacity
+
+HbEffectOpacity::HbEffectOpacity(
+    const QList<HbEffectFxmlParamData> &data,
+    QGraphicsItem *item,
+    HbEffectGroup *group) :
+        HbEffectAbstract(0, item, group),
+        mAnimation(0)
+{
+    // Default values of if something is not passed in FXML
+    mStartOpacity = 1.0f;
+    mEndOpacity = 1.0f;
+
+    int duration = 0;
+
+    QEasingCurve curve = QEasingCurve::Linear;
+    QList<HbKeyFrame> keyFrameList;
+
+    const HbEffectFxmlParamData *opacityParam = 0;
+
+    // Handle FXML parameters
+    Q_FOREACH(const HbEffectFxmlParamData &param, data) {
+	    if (param.name() == FXML_KEYWORD_OPACITY) {
+            keyFrameList = param.keyFrames();
+            HbEffectUtils::resolveFxmlDuration(duration, param);
+            HbEffectUtils::resolveFxmlCurveShape(curve, param);
+
+            // Get static value
+            param.getValue(mStartOpacity);
+            mEndOpacity = mStartOpacity;
+
+            opacityParam = &param;
+	    }
+    }
+
+    if (duration > 0) {
+        mAnimation = new HbEffectOpacityAnimation(group, duration); 
+
+        foreach( const HbKeyFrame &kf, keyFrameList ) {
+	        if (HbEffectUtils::fuzzyIsNull(kf.pos)) {
+		        // Start value 0.0 does not work so this trick fixes that.
+                mStartOpacity = kf.val + 0.0001f;
+	        }
+	        else if (HbEffectUtils::fuzzyIsOneOrGreater(kf.pos)) {
+		        mEndOpacity = kf.val;
+	        }
+            // Set keyframe in animation
+            else {
+                mAnimation->setKeyValueAt(kf.pos, QVariant(kf.val));
+            }
+        }
+
+        mAnimation->addLooping(opacityParam, group);
+        mAnimation->setEndValue(QVariant(mEndOpacity));
+        mAnimation->setStartValue(QVariant(mStartOpacity));
+        mAnimation->mCurve = curve;
+    }
+}
+
+HbEffectOpacity::~HbEffectOpacity()
+{
+#if QT_VERSION >= 0x040500
+    // Item might be deleted at this point, so it cannot be used here
+    //item()->setOpacity(mEndOpacity);//performing cancel:bug fix
+#endif // QT_VERSION
+
+    delete mAnimation;
+}
+
+QString HbEffectOpacity::name() const
+{
+    return HB_EFFECT_NAME_OPACITY;
+}
+
+void HbEffectOpacity::init()
+{
+}
+
+void HbEffectOpacity::setStartState(QTransform &/*transform*/)
+{
+#if !(QT_VERSION < 0x040500)
+    item()->setOpacity(mStartOpacity);
+#endif
+}
+
+/* Starts the opacity effect animation. If the effect is already started,
+the result is undefined.
+*/
+void HbEffectOpacity::start()
+{
+#if !(QT_VERSION < 0x040500)
+    item()->setOpacity(mStartOpacity);
+#endif
+
+    if (mAnimation) {
+        mAnimation->stop();
+        mAnimation->setCurrentTime(0);
+        mAnimation->start();
+    }
+    // Static effect
+    else {
+        // Handle finish immediately, effect has been set in setStartState().
+        Hb::EffectEvent reason = Hb::EffectNotStarted;
+        group()->effectFinished(reason);
+    }
+}
+
+/* Cancels the effect animation and sets the animation end state immediately.
+*/
+void HbEffectOpacity::cancel(QTransform &transform, bool itemIsValid)
+{
+    Q_UNUSED(transform)
+
+    if (mAnimation) {
+        mAnimation->stop();
+    }
+
+#if QT_VERSION >= 0x040500
+    if (itemIsValid) {
+        item()->setOpacity(mEndOpacity);
+    }
+#endif // QT_VERSION
+}
+
+void HbEffectOpacity::updateItemTransform(QTransform &/*transform*/)
+{
+    // Nothing needed because opacity does not use a transform.
+}
+
+void HbEffectOpacity::pause()
+{
+    if (mAnimation) {
+        mAnimation->pause();
+    }
+}
+
+void HbEffectOpacity::resume()
+{
+    if (mAnimation) {
+        mAnimation->resume();
+    }
+}