Qt Reference Documentation

Bubble.qml Example File

declarative/screenorientation/Core/Bubble.qml
 /****************************************************************************
 **
 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the QtDeclarative module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, 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.
 **
 ** If you have questions regarding the use of this file, please contact
 ** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 import Qt 4.7

 Rectangle {
     property bool rising: false
     property bool verticalRise: true
     property real xAttractor: 0
     property real yAttractor: 0

     width: 5 + 10*Math.random()
     height: width
     radius: Math.floor(width/2)-1
     property real amountOfGray: Math.random()
     color: Qt.rgba(amountOfGray,amountOfGray,amountOfGray,1)

     y: (rising && verticalRise) ? yAttractor : Math.random()*(main.inPortrait ? main.baseHeight : main.baseWidth)
     x: (rising && !verticalRise) ? xAttractor : Math.random()*(main.inPortrait ? main.baseWidth : main.baseHeight)
     Behavior on x {
         id: xBehavior
         SmoothedAnimation {
             velocity: 100+Math.random()*100
         }
     }
     Behavior on y {
         id: yBehavior
         SmoothedAnimation {
             velocity: 100+Math.random()*100
         }
     }
     Timer {
        interval: 80+Math.random()*40
         repeat: true
         running: true
         onTriggered: {
             if (rising) {
                 if (x > main.width || x < 0) {
                     xBehavior.enabled = false;
                     rising = false;
                     xBehavior.enabled = true;
                     rising = true;
                 }
                 if (y > main.height || y < 0) {
                     yBehavior.enabled = false;
                     rising = false;
                     yBehavior.enabled = true;
                     rising = true;
                 }
             }
         }
     }
 }
X

Thank you for giving your feedback.

Make sure it is related to this specific page. For more general bugs and requests, please use the Qt Bug Tracker.