Qt Reference Documentation

behavior-example.qml Example File

declarative/animation/behaviors/behavior-example/qml/behaviours/behavior-example.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.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** 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 Nokia Corporation and its Subsidiary(-ies) 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

 Rectangle {
     width: 600; height: 400
     color: "#343434"

     Rectangle {
         anchors.centerIn: parent
         width: 200; height: 200
         radius: 30
         color: "transparent"
         border.width: 4; border.color: "white"

         SideRect {
             id: leftRect
             anchors { verticalCenter: parent.verticalCenter; horizontalCenter: parent.left }
             text: "Left"
         }

         SideRect {
             id: rightRect
             anchors { verticalCenter: parent.verticalCenter; horizontalCenter: parent.right }
             text: "Right"
         }

         SideRect {
             id: topRect
             anchors { verticalCenter: parent.top; horizontalCenter: parent.horizontalCenter }
             text: "Top"
         }

         SideRect {
             id: bottomRect
             anchors { verticalCenter: parent.bottom; horizontalCenter: parent.horizontalCenter }
             text: "Bottom"
         }

         Rectangle {
             id: focusRect

             property string text

             x: 62; y: 75; width: 75; height: 50
             radius: 6
             border.width: 4; border.color: "white"
             color: "firebrick"

             // Set an 'elastic' behavior on the focusRect's x property.
             Behavior on x {
                 NumberAnimation { easing.type: Easing.OutElastic; easing.amplitude: 3.0; easing.period: 2.0; duration: 300 }
             }

             // Set an 'elastic' behavior on the focusRect's y property.
             Behavior on y {
                 NumberAnimation { easing.type: Easing.OutElastic; easing.amplitude: 3.0; easing.period: 2.0; duration: 300 }
             }

             Text {
                 id: focusText
                 text: focusRect.text
                 anchors.centerIn: parent
                 color: "white"
                 font.pixelSize: 16; font.bold: true

                 // Set a behavior on the focusText's x property:
                 // Set the opacity to 0, set the new text value, then set the opacity back to 1.
                 Behavior on text {
                     SequentialAnimation {
                         NumberAnimation { target: focusText; property: "opacity"; to: 0; duration: 150 }
                         NumberAnimation { target: focusText; property: "opacity"; to: 1; duration: 150 }
                     }
                 }
             }
         }
     }
 }