DragTile.qml Example File

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 import QtQuick 2.0

 Item {
     id: root
     property string colorKey

     width: 64; height: 64

     MouseArea {
         id: mouseArea

         width: 64; height: 64
         anchors.centerIn: parent

         drag.target: tile

         onReleased: parent = tile.Drag.target !== null ? tile.Drag.target : root

         Rectangle {
             id: tile

             width: 64; height: 64
             anchors.verticalCenter: parent.verticalCenter
             anchors.horizontalCenter: parent.horizontalCenter

             color: colorKey

             Drag.keys: [ colorKey ]
             Drag.active: mouseArea.drag.active
             Drag.hotSpot.x: 32
             Drag.hotSpot.y: 32
             Text {
                 anchors.fill: parent
                 color: "white"
                 font.pixelSize: 48
                 text: modelData + 1
                 horizontalAlignment:Text.AlignHCenter
                 verticalAlignment: Text.AlignVCenter
             }
             states: State {
                 when: mouseArea.drag.active
                 ParentChange { target: tile; parent: root }
                 AnchorChanges { target: tile; anchors.verticalCenter: undefined; anchors.horizontalCenter: undefined }
             }

         }
     }
 }