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wigglytext.qml Example File

declarative/animation/behaviors/wigglytext/qml/wigglytext/wigglytext.qml
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 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
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 ** This file is part of the examples of the Qt Toolkit.
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 import QtQuick 1.0

 Rectangle {
     id: container

     property string text: "Drag this text..."
     property bool animated: true

     width: 640; height: 480; color: "#474747"; focus: true

     Keys.onPressed: {
         if (event.key == Qt.Key_Delete || event.key == Qt.Key_Backspace)
             container.remove()
         else if (event.text != "") {
             container.append(event.text)
         }
     }

     function append(text) {
         container.animated = false
         var lastLetter = container.children[container.children.length - 1]
         var newLetter = letterComponent.createObject(container)
         newLetter.text = text
         newLetter.follow = lastLetter
         container.animated = true
     }

     function remove() {
         if (container.children.length)
             container.children[container.children.length - 1].destroy()
     }

     function doLayout() {
         var follow = null
         for (var i = 0; i < container.text.length; ++i) {
             var newLetter = letterComponent.createObject(container)
             newLetter.text = container.text[i]
             newLetter.follow = follow
             follow = newLetter
         }
     }

     Component {
         id: letterComponent
         Text {
             id: letter
             property variant follow

             x: follow ? follow.x + follow.width : container.width / 3
             y: follow ? follow.y : container.height / 2

             font.pixelSize: 40; font.bold: true
             color: "#999999"; styleColor: "#222222"; style: Text.Raised

             MouseArea {
                 anchors.fill: parent
                 drag.target: letter; drag.axis: Drag.XandYAxis
                 onPressed: letter.color = "#dddddd"
                 onReleased: letter.color = "#999999"
             }

             Behavior on x { enabled: container.animated; SpringAnimation { spring: 3; damping: 0.3; mass: 1.0 } }
             Behavior on y { enabled: container.animated; SpringAnimation { spring: 3; damping: 0.3; mass: 1.0 } }
         }
     }

     Component.onCompleted: doLayout()
 }
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