Dial.qml Example File

customitems/dialcontrol/content/Dial.qml

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  import QtQuick 2.0

  Item {
      id: root
      property real value : 0

      width: 210; height: 210

      Image { source: "background.png" }

      Image {
          x: 96
          y: 35
          source: "needle_shadow.png"
          transform: Rotation {
              origin.x: 9; origin.y: 67
              angle: needleRotation.angle
          }
      }
      Image {
          id: needle
          x: 98; y: 33
          antialiasing: true
          source: "needle.png"
          transform: Rotation {
              id: needleRotation
              origin.x: 5; origin.y: 65
              angle: Math.min(Math.max(-130, root.value*2.6 - 130), 133)
              Behavior on angle {
                  SpringAnimation {
                      spring: 1.4
                      damping: .15
                  }
              }
          }
      }
      Image { x: 21; y: 18; source: "overlay.png" }
  }