Qt Reference Documentation

Smiley.qml Example File

declarative/modelviews/parallax/qml/parallax/Smiley.qml
 /****************************************************************************
 **
 ** Copyright (C) 2015 The Qt Company Ltd.
 ** Contact: http://www.qt.io/licensing/
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** You may use this file under the terms of the BSD license as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of The Qt Company Ltd nor the names of its
 **     contributors may be used to endorse or promote products derived
 **     from this software without specific prior written permission.
 **
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 import QtQuick 1.0

 // This is taken from the declarative animation/basics/property-animation.qml
 // example

 Item {
     id: window
     width: 320; height: 480

     Image {
         anchors.horizontalCenter: parent.horizontalCenter
         y: smiley.minHeight + 58
         source: "pics/shadow.png"

         scale: smiley.y * 0.5 / (smiley.minHeight - smiley.maxHeight)
     }

     Image {
         id: smiley
         property int maxHeight: window.height / 3
         property int minHeight: 2 * window.height / 3

         anchors.horizontalCenter: parent.horizontalCenter
         y: minHeight
         source: "pics/face-smile.png"

         SequentialAnimation on y {
             loops: Animation.Infinite

             NumberAnimation {
                 from: smiley.minHeight; to: smiley.maxHeight
                 easing.type: Easing.OutExpo; duration: 300
             }

             NumberAnimation {
                 from: smiley.maxHeight; to: smiley.minHeight
                 easing.type: Easing.OutBounce; duration: 1000
             }

             PauseAnimation { duration: 500 }
         }
     }
 }