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

Qt Reference Documentation

# main.qml Example File

declarative/shadereffects/qml/shadereffects/main.qml

     /****************************************************************************
     **
     ** Copyright (C) 2012 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:
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     ** Alternatively, this file may be used in accordance with the terms and
     ** conditions contained in a signed written agreement between you and Nokia.
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     import QtQuick 1.0
     import Qt.labs.shaders 1.0

     Item {
         id: main
         width: 360
         height: 640

         Rectangle {
             anchors.fill: parent
             color: "black"
         }

         Image {
             id: header
             source: "images/shader_effects.jpg"
         }

         ListModel {
             id: demoModel
             ListElement { name: "ImageMask" }
             ListElement { name: "RadialWave" }
             ListElement { name: "Water" }
             ListElement { name: "Grayscale" }
             ListElement { name: "DropShadow" }
             ListElement { name: "Curtain" }
         }

         Grid {
             id: menuGrid
             anchors.top: header.bottom
             anchors.bottom: toolbar.top
             width: parent.width
             columns: 2
             Repeater {
                 model: demoModel
                 Item {
                     width: main.width / 2
                     height: menuGrid.height / 3
                     clip: true
                     Image {
                         width: parent.width
                         height: width
                         source: "images/" + name + ".jpg"
                         opacity: mouseArea.pressed ? 0.6 : 1.0
                     }
                     MouseArea {
                         id: mouseArea
                         anchors.fill: parent
                         onClicked: {
                             demoLoader.source = name + ".qml"
                             main.state = "showDemo"
                         }
                     }
                 }
             }
         }

         Loader {
             anchors.fill: parent
             id: demoLoader
             visible: false
             Behavior on opacity {
                 NumberAnimation { duration: 300 }
             }
         }

         Image {
             id: toolbar
             source: "images/toolbar.png"
             width: parent.width
             anchors.bottom: parent.bottom
         }

         Rectangle {
             id: translucentToolbar
             color: "black"
             opacity: 0.3
             anchors.fill: toolbar
             visible: !toolbar.visible
         }

         Item {
             height: toolbar.height
             width: height
             anchors.bottom: parent.bottom

             Image {
                 source: "images/back.png"
                 anchors.centerIn: parent
             }

             MouseArea {
                 anchors.fill: parent
                 onClicked: {
                     if (main.state == "") Qt.quit(); else {
                         main.state = ""
                         demoLoader.source = ""
                     }
                 }
             }
         }

         states: State {
             name: "showDemo"
             PropertyChanges {
                 target: menuGrid
                 visible: false
             }
             PropertyChanges {
                 target: demoLoader
                 visible: true
             }
             PropertyChanges {
                 target: toolbar
                 visible: false
             }
         }
     }