Qt Reference Documentation

# ImageMask.qml Example File

declarative/shadereffects/qml/shadereffects/ImageMask.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
     ** 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.
     **
     ** 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 met:
     ** http://www.gnu.org/copyleft/gpl.html.
     **
     ** Other Usage
     ** Alternatively, this file may be used in accordance with the terms and
     ** conditions contained in a signed written agreement between you and Nokia.
     **
     **
     **
     **
     **
     ** $QT_END_LICENSE$
     **
     ****************************************************************************/

     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
             }
         }
     }