先声明一个可以拖拽的scene

var scene = Label( "blablabla")
scene.id = "label"

定义两个记录point，分别记录translate和实放游标的点

class Delta {
    var x = -1.0
    var y = -1.0
}

var dragDelta = Delta()
var releasedDelta = Delta()

先加入mouseenter的手型游标时间

scene.setOnMouseEntered {
	scene.cursor = Cursor.HAND
}

在mouserelease事件中记录坐标

scene.setOnMouseReleased {
	releasedDelta.x = it.sceneX
	releasedDelta.y = it.sceneY
	scene.cursor = Cursor.HAND;
}

在mousepressed事件中，调整translate的计算方式：

scene.setOnMousePressed {
	if (releasedDelta.x > 0 && releasedDelta.y > 0) {
		val offsetX = it.sceneX - releasedDelta.x //already have translate point, recalculate the translate value
		var offsetY = it.sceneY - releasedDelta.y
		dragDelta.x = dragDelta.x + offsetX
		dragDelta.y = dragDelta.y + offsetY
	} else {
		dragDelta.x = it.sceneX
		dragDelta.y = it.sceneY
	}
	scene.cursor = Cursor.MOVE;
	releasedDelta = Delta()
}

在mousedrag中设置scene的translate值

scene.setOnMouseDragged {
	scene.translateX = it.sceneX - dragDelta.x;
	scene.translateY = it.sceneY - dragDelta.y;
}