Qt 4.7: RadialWave.qml Example File (declarative/shadereffects/qml/RadialWave.qml)

Qt Reference Documentation

# RadialWave.qml Example File

declarative/shadereffects/qml/RadialWave.qml

     /****************************************************************************
     **
     ** 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 examples of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** GNU Lesser General Public License Usage
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     ** 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.
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     ** rights. These rights are described in the Nokia Qt LGPL Exception
     ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
     **
     ** GNU General Public License Usage
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     ** Public License version 3.0 as published by the Free Software Foundation
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     import QtQuick 1.0
     import Qt.labs.shaders 1.0

     Item {
         id: main
         anchors.fill: parent

         ShaderEffectSource {
             id: thesource
             sourceItem: Image { source: "images/wave.jpg" }
             live: false
             hideSource: true
         }

         RadialWaveEffect {
             id: layer
             anchors.fill: parent;
             source: thesource

             wave: 0.0
             waveOriginX: 0.5
             waveOriginY: 0.5
             waveWidth: 0.01

             NumberAnimation on wave {
                 id: waveAnim
                 running: true
                 loops: Animation.Infinite
                 easing.type: "Linear"
                 from: 0.0000; to: 2.0000;
                 duration: 2500
             }
         }

         MouseArea {
             anchors.fill: parent
             onPressed: {
                 waveAnim.stop()
                 layer.waveOriginX = mouseX / main.width
                 layer.waveOriginY = mouseY / main.height
                 waveAnim.start()
             }
         }
     }