wigglytext.qml Example File

animation/behaviors/wigglytext.qml

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  import QtQuick 2.0

  Rectangle {
      id: container

      property string text: "Drag me!"
      property bool animated: true

      width: 320; 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 / 6
              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()
  }