Letter.qml Example File

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  import QtQuick 2.2

  Item {
      property alias text: label.text

      Text {
          anchors.top: parent.top
          anchors.horizontalCenter: parent.horizontalCenter
          id: label
          color: "white"
          font.pixelSize: parent.height * 0.75
          font.family: "Helvetica Neue"

          opacity: applicationData.lettersOwned.indexOf(text) >= 0 ? 1.0 : 0.0
          visible: opacity > 0.0

          anchors.horizontalCenterOffset: visible ? 0 : -topLevel.width / 2

          Behavior on anchors.horizontalCenterOffset {
              NumberAnimation {
                  duration: 500
                  easing.type: Easing.OutQuad
              }
          }
      }

      Rectangle {
          color: "white"
          width: parent.width
          anchors.bottom: parent.bottom
          anchors.top: label.bottom
      }
  }