JavaFX PopUp拖放

Question

first i use JavaSE 1.7 -> The product i develop for is setting this standard. So i can not use the Functions of JavaFX8!

I developed a Custom Menu Item like this: http://de.share-your-photo.com/7f2f7d74d8

There you can see some triangels! If the triangle shows to the right side i want to get a PopUp on the right hand side next to the Menu Item. My Problem is that the popup should be dragable and it should not be possible that the PopUp leaves the Main Stage.

Could you please help me with this Problem? What kind of class should i use to develop the PopUp?

Maybe is it possible to make a PopUp Object Draggabel?

Answer 1

I solve the problem, by myself. I added a container (VBox) to the popup and makes this one draggable! With every new Koordinate, i set the x&y coordinates to the new position!

container.setOnMouseDragged(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent event) {
                // TODO Auto-generated method stub
                if(dragAct==true){
                    //DRAG HANDLING
                }
            }
        });