Qt Reference Documentation

# Bubble.qml Example File

declarative/screenorientation/Core/Bubble.qml

     /****************************************************************************
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     ** This file is part of the examples of the Qt Toolkit.
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     import QtQuick 1.0

     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;
                     }
                 }
             }
         }
     }