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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
+
+ Rectangle {
+ width: 300
+ height: 300
+
+ Text {
+ id: textLabel
+ text: "Hello World"
+ anchors.centerIn: parent
+ font.pixelSize: 48
+ }
+
+ ShaderEffectItem {
+ objectName: "effectItem"
+ property variant source: ShaderEffectSource { objectName: "effectSource"; sourceItem: textLabel; hideSource: true }
+ property real wiggleAmount: 0.01
+ anchors.fill: textLabel
+
+ SequentialAnimation on wiggleAmount {
+ loops: Animation.Infinite
+ NumberAnimation { to: -0.01; duration: 500 }
+ NumberAnimation { to: 0.01; duration: 500 }
+ }
+
+ fragmentShader: "
+ varying highp vec2 qt_TexCoord0;
+ uniform sampler2D source;
+ uniform highp float wiggleAmount;
+ void main(void)
+ {
+ highp vec2 wiggledTexCoord = qt_TexCoord0;
+ wiggledTexCoord.s += sin(4.0 * 3.141592653589 * wiggledTexCoord.t) * wiggleAmount;
+ gl_FragColor = texture2D(source, wiggledTexCoord.st);
+ }
+ "
+ }
+ }