--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbcore/ovgeffects/hbvgcolorizeeffect.cpp	Mon Apr 19 14:02:13 2010 +0300
@@ -0,0 +1,148 @@
+/****************************************************************************
+**
+** 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 "hbvgcolorizeeffect_p.h"
+#include "hbvgcolorizeeffect_p_p.h"
+#include <QPainter>
+
+/*!
+ * \class HbVgColorizeEffect
+ *
+ * \brief OpenVG-based colorize filter effect.
+ *
+ * \internal
+ */
+
+HbVgColorizeEffectPrivate::HbVgColorizeEffectPrivate()
+    : color(Qt::white)
+{
+}
+
+HbVgColorizeEffect::HbVgColorizeEffect(QObject *parent)
+    : HbVgEffect(*new HbVgColorizeEffectPrivate, parent)
+{
+}
+
+HbVgColorizeEffect::HbVgColorizeEffect(HbVgColorizeEffectPrivate &dd, QObject *parent)
+    : HbVgEffect(dd, parent)
+{
+}
+
+HbVgColorizeEffect::~HbVgColorizeEffect()
+{
+}
+
+QColor HbVgColorizeEffect::color() const
+{
+    Q_D(const HbVgColorizeEffect);
+    return d->color;
+}
+
+void HbVgColorizeEffect::setColor(const QColor &color)
+{
+    Q_D(HbVgColorizeEffect);
+    if (d->color == color)
+        return;
+    d->color = color;
+    updateEffect();
+    emit colorChanged(color);
+}
+
+QRectF HbVgColorizeEffect::boundingRectFor(const QRectF &rect) const
+{
+    return rect;
+}
+
+#ifdef HB_EFFECTS_OPENVG
+
+const VGfloat Rw = 0.3086f;
+const VGfloat Gw = 0.6094f;
+const VGfloat Bw = 0.0820f;
+
+void HbVgColorizeEffectPrivate::getColorMatrix(VGfloat *colorMatrix,
+                                               const QColor &color,
+                                               qreal opacity)
+{
+    const VGfloat o = (VGfloat) opacity;
+    const VGfloat ao = 1 - o;
+    const VGfloat R = (o / 255.0f) * (VGfloat) color.red();
+    const VGfloat G = (o / 255.0f) * (VGfloat) color.green();
+    const VGfloat B = (o / 255.0f) * (VGfloat) color.blue();
+    colorMatrix[0] = R*Rw + ao;
+    colorMatrix[1] = G*Rw;
+    colorMatrix[2] = B*Rw;
+    colorMatrix[3] = 0.0f;
+    colorMatrix[4] = R*Gw;
+    colorMatrix[5] = G*Gw + ao;
+    colorMatrix[6] = B*Gw;
+    colorMatrix[7] = 0.0f;
+    colorMatrix[8] = R*Bw;
+    colorMatrix[9] = G*Bw;
+    colorMatrix[10] = B*Bw + ao;
+    colorMatrix[11] = 0.0f;
+    colorMatrix[12] = 0.0f;
+    colorMatrix[13] = 0.0f;
+    colorMatrix[14] = 0.0f;
+    colorMatrix[15] = 1.0f;
+    colorMatrix[16] = 0.0f;
+    colorMatrix[17] = 0.0f;
+    colorMatrix[18] = 0.0f;
+    colorMatrix[19] = 0.0f;    
+}
+
+#endif
+
+void HbVgColorizeEffect::performEffect(QPainter *painter,
+                                   const QPointF &offset,
+                                   const QVariant &vgImage,
+                                   const QSize &vgImageSize)
+{
+#ifdef HB_EFFECTS_OPENVG
+    QPixmap cachedPm = cached(vgImageSize);
+    if (!cachedPm.isNull()) {
+        painter->drawPixmap(offset, cachedPm);
+        return;
+    }
+
+    Q_D(HbVgColorizeEffect);
+    VGImage srcImage = vgImage.value<VGImage>();
+    VGImage dstImage = d->ensurePixmap(&d->dstPixmap, vgImageSize);
+    qreal opacity = clamp(d->opacity, 0.0f, 1.0f);
+    if (opacity > HBVG_EPSILON) {
+        if (d->paramsChanged)
+            HbVgColorizeEffectPrivate::getColorMatrix(d->colorMatrix, d->color, opacity);
+        vgColorMatrix(dstImage, srcImage, d->colorMatrix);
+        painter->drawPixmap(offset, d->dstPixmap);
+        tryCache(d->dstPixmap);
+    } else {
+        painter->drawPixmap(offset, d->srcPixmap);
+    }
+#else
+    Q_UNUSED(painter);
+    Q_UNUSED(offset);
+    Q_UNUSED(vgImage);
+    Q_UNUSED(vgImageSize);
+#endif
+}