So I'm correct that calling Node.startFullDrag() should result in the
OnMouseDragOver method getting called? I wasn't sure I had that right - and I
really need a OnMouseDragMoved notification anyway.
My Sample code is below. If you think it should result in a bunch of
onMouseDragOver.Handler printlns, I'll file a bug.
jeff
public void start(Stage aStage)
{
// Create Button with DragDetected.Handler to startFullDrag/startDragAndDrop
final Button button = new Button("Hello World");
button.setOnDragDetected(new EventHandler() {
public void handle(Event anEvent) {
button.startFullDrag();
Dragboard db = button.startDragAndDrop(TransferMode.ANY);
ClipboardContent cc = new ClipboardContent(); cc.putString("Hello
World");
db.setContent(cc); anEvent.consume();
}
});
// Listen to DragSource events
button.setOnMouseDragOver(new EventHandler<MouseDragEvent>() {
public void handle(MouseDragEvent e) { System.out.println(e); }
});
// Add button to pane and stage and show
Pane pane = new Pane(); pane.setPrefSize(400,400);
pane.getChildren().add(button); button.resizeRelocate(100,100,100,100);
aStage.setScene(new Scene(pane)); aStage.show();
}
On Apr 21, 2014, at 8:45 AM, Anthony Petrov <anthony.pet...@oracle.com> wrote:
> Hi Jeff,
>
> On 4/18/2014 6:43 PM, Jeff Martin wrote:
>> I'm trying to figure out how to implement a version of
>> Dragboard.setDragView() that works with JFXPanel (which isn't currently
>> supported). Years ago I did this in Swing by creating a window that followed
>> the mouse around (at an offset, so it wouldn't take all the DragOver events).
>>
>> I created a Popup Window and added an ImageView, but I can't figure out how
>> to get the equivalent of DragSource events. I thought I could just call
>> source.startFullDrag() in my DragDetected method then I would get MouseDrag
>> events on my source, but that isn't happening. Is this a bug or am I doing
>> something wrong?
>
> Please file a new JIRA and provide a small test case that demonstrates the
> problem.
>
>> Also, when I get my Popup moving, I'd really like it to be exactly under the
>> mouse but have the Popup be MouseTransparent (or forward events to the
>> window underneath).
>
> You could use the TRANSPARENT style for your popup window and paint a
> transparent hole (alpha == 0) in its center (or wherever you need it), and
> keep the popup positioned so that the mouse pointer is located above the
> hole. Mouse events always pass through transparent pixels. This way mouse
> events will get delivered to a window below the popup window in the z-order,
> while the popup window itself can float above it following the mouse cursor.
>
> --
> best regards,
> Anthony
