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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QML Shaders plugin of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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 qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 1.0
+import Qt.labs.shaders 1.0
+
+Item {
+ id: gaussianBlur
+ property variant source: 0
+ property real radius: 8;
+ property real deviation: Math.sqrt(-((radius+1) * (radius+1)) / (2 * Math.log(1.0 / 255.0)))
+ property bool live: true
+
+ ShaderEffectItem {
+ id: cache
+ anchors.fill: parent
+ visible: !gaussianBlur.live
+ property variant source: ShaderEffectSource { sourceItem: verticalBlur; live: false; hideSource: true }
+ }
+
+ GaussianDirectionalBlur {
+ id: verticalBlur
+ anchors.fill: parent
+
+ deltaX: 0.0
+ deltaY: 1.0/parent.height
+
+ source: ShaderEffectSource { sourceItem: horizontalBlur; hideSource: true }
+ deviation: gaussianBlur.deviation
+ radius: gaussianBlur.radius
+ }
+
+ GaussianDirectionalBlur {
+ id: horizontalBlur
+ anchors.fill: parent
+ blending: false
+
+ deltaX: 1.0/parent.width
+ deltaY: 0.0
+
+ source: gaussianBlur.source
+ deviation: gaussianBlur.deviation
+ radius: gaussianBlur.radius
+ }
+
+}