Qt 4.8: ImageMask.qml Example File (declarative/shadereffects/qml/shadereffects/ImageMask.qml)

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# ImageMask.qml Example File

declarative/shadereffects/qml/shadereffects/ImageMask.qml

     /****************************************************************************
     **
     ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
     ** Contact: http://www.qt-project.org/legal
     **
     ** This file is part of the examples of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** Commercial License Usage
     ** Licensees holding valid commercial Qt licenses may use this file in
     ** accordance with the commercial license agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
     ** a written agreement between you and Digia.  For licensing terms and
     ** conditions see http://qt.digia.com/licensing.  For further information
     ** use the contact form at http://qt.digia.com/contact-us.
     **
     ** 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, Digia gives you certain additional
     ** rights.  These rights are described in the Digia Qt LGPL Exception
     ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
     **
     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3.0 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.GPL included in the
     ** packaging of this file.  Please review the following information to
     ** ensure the GNU General Public License version 3.0 requirements will be
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     ** $QT_END_LICENSE$
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     ****************************************************************************/

     import QtQuick 1.0
     import Qt.labs.shaders 1.0

     Item {
         anchors.fill: parent

         Image {
             id: bg
             anchors.fill: parent
             source: "images/image2.jpg"
         }

         Item {
             id: mask
             anchors.fill: parent

             Text {
                 text: "Mask text"
                 font.pixelSize: 50
                 font.bold: true
                 anchors.horizontalCenter: parent.horizontalCenter

                 NumberAnimation on rotation {
                     running: true
                     loops: Animation.Infinite
                     from: 0
                     to: 360
                     duration: 3000
                 }

                 SequentialAnimation on y {
                     running: true
                     loops: Animation.Infinite
                     NumberAnimation {
                         to: main.height
                         duration: 3000
                     }
                     NumberAnimation {
                         to: 0
                         duration: 3000
                     }
                 }
             }

             Rectangle {
                 id: opaqueBox
                 width: 60
                 height: parent.height
                 SequentialAnimation on x {
                     running: true
                     loops: Animation.Infinite
                     NumberAnimation {
                         to: main.width
                         duration: 2000
                         easing.type: Easing.InOutCubic
                     }
                     NumberAnimation {
                         to: 0
                         duration: 2000
                         easing.type: Easing.InOutCubic
                     }
                 }
             }

             Rectangle {
                 width: 100
                 opacity: 0.5
                 height: parent.height
                 SequentialAnimation on x {
                     PauseAnimation { duration: 100 }

                     SequentialAnimation {
                         loops: Animation.Infinite
                         NumberAnimation {
                             to: main.width
                             duration: 2000
                             easing.type: Easing.InOutCubic
                         }
                         NumberAnimation {
                             to: 0
                             duration: 2000
                             easing.type: Easing.InOutCubic
                         }
                     }
                 }
             }
         }

         ImageMaskEffect {
             anchors.fill: parent
             image: ShaderEffectSource {
                 sourceItem: Image { source: "images/image1.jpg" }
                 live: false
                 hideSource: true
             }
             mask: ShaderEffectSource {
                 sourceItem: mask
                 live: true
                 hideSource: true
             }
         }
     }