examples/declarative/ui-components/scrollbar/display.qml
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 06 Jul 2010 15:10:48 +0300
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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**   * Redistributions of source code must retain the above copyright
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**     notice, this list of conditions and the following disclaimer.
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**   * Redistributions in binary form must reproduce the above copyright
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**     notice, this list of conditions and the following disclaimer in
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**     the documentation and/or other materials provided with the
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**     distribution.
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**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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**     the names of its contributors may be used to endorse or promote
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**     products derived from this software without specific prior written
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**     permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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import Qt 4.7
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Rectangle {
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    width: 640
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    height: 480
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    // Create a flickable to view a large image.
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    Flickable {
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        id: view
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        anchors.fill: parent
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        contentWidth: picture.width
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        contentHeight: picture.height
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        Image {
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            id: picture
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            source: "pics/niagara_falls.jpg"
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            asynchronous: true
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        }
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        // Only show the scrollbars when the view is moving.
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        states: State {
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            name: "ShowBars"
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            when: view.movingVertically || view.movingHorizontally
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            PropertyChanges { target: verticalScrollBar; opacity: 1 }
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            PropertyChanges { target: horizontalScrollBar; opacity: 1 }
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        }
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        transitions: Transition {
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            from: "*"; to: "*"
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            NumberAnimation { properties: "opacity"; duration: 400 }
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        }
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    }
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    // Attach scrollbars to the right and bottom edges of the view.
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    ScrollBar {
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        id: verticalScrollBar
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        width: 12; height: view.height-12
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        anchors.right: view.right
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        opacity: 0
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        orientation: Qt.Vertical
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        position: view.visibleArea.yPosition
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        pageSize: view.visibleArea.heightRatio
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    }
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    ScrollBar {
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        id: horizontalScrollBar
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        width: view.width-12; height: 12
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        anchors.bottom: view.bottom
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        opacity: 0
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        orientation: Qt.Horizontal
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        position: view.visibleArea.xPosition
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        pageSize: view.visibleArea.widthRatio
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    }
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}