CODEWITHSUNDEEP
javalibgdx
Vjeetje
Vjeetje

Reputation: 5384

exit event after touchup

I have the following problem in LibGDX. When you move over an Actor you get the enter event from the ClickListener and the exit event when you move out of the bounding box of the Actor. I keep a boolean mouseOver that tells me if the cursor is over an Actor with these events. But when you click on the Actor and after releasing the mouse, an exit event is given. So after releasing the mouse click, it is as if the cursor isn't over the Actor anymore, while it is.

How can I keep a correct state for the boolean mouseOver? In other words: how can I know if the mouse is over my Actor when a TouchUp event has occurred as in the above scenario.

Upvotes: 2

Views: 278

Answers (3)

Noel Sison
Noel Sison

Reputation: 1

Set mouseOver to false only if the Actor toActor of exit is not the actor you added the listener to:

myActor.addListener(new ClickListener() {
  ...
  @Override
  public void exit(InputEvent event, float x, float y, int pointer, Actor toActor) {
    ...
    if (toActor != myActor) // and even myActor's children if it is a Group
      mouseOver = false;
  }
});

Upvotes: 0

Vjeetje
Vjeetje

Reputation: 5384

The best hack I found so far is to look at the pointer arg in the exit and enter overrides and look if the mouse is clicked. I'm still looking for a cleaner solution though.

    addListener(new ClickListener() {
        @Override
        public void enter(InputEvent event, float x, float y, int pointer,
                Actor fromActor) {
            mouseOver = pointer == -1 ? true : mouseOver;
            super.enter(event, x, y, pointer, fromActor);
        }

        @Override
        public void exit(InputEvent event, float x, float y, int pointer,
                Actor toActor) {
            mouseOver = pointer == -1 ? false : mouseOver;
            super.exit(event, x, y, pointer, toActor);
        }
}

Upvotes: 0

Daahrien
Daahrien

Reputation: 10320

You can override touchUp and set the boolean mouseOver to true there.

@Override
public void touchUp(InputEvent event, float x, float y, int pointer, int button){
    ...
    mouseOver = true;
}

Upvotes: 1

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