Paddle.qml Example File

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 import QtQuick 1.0
 import QtMobility.connectivity 1.2

 Rectangle {
     id: paddle

     property int paddlePos: page.height/2
     property bool rateLimit: false

     signal paddleMoved(int postion)

     color: fg
     x: 0; width: 12; height: 50; y: parent.height/2-height/2;

     Behavior on y { SpringAnimation{ damping: 0.5; spring: 4.5; velocity: 400 } }
     onPaddlePosChanged: {
         if(paddlePos < topBumper.height)
             y = topBumper.height;
         else if(paddlePos > page.height-bottomBumper.height-height)
             y = page.height-bottomBumper.height-height;
         else
             y = paddlePos;
     }
     onYChanged: {
         if(!rateLimit) { paddleMoved(y); rateLimit = true; }
     }

     Timer {
         interval: 30
         running: parent.rateLimit
         onTriggered: paddle.rateLimit = false;
     }
 }