<AWT Dev> RFR: 8273355: Lanai: Flickering on tooltip appearance IntelliJ IDEA 2021.2.1

[Sergey Bylokhov]

On Sat, 4 Sep 2021 19:54:55 GMT, Alexey Ushakov <avu at openjdk.org> wrote:

> Used setOpaque() method to set correct background of platform window

Calling "platformWindow.setOpaque(!isTranslucent());" is equvivalent of calling these three methods:

  setOpaque(getTarget().isOpaque());
  applyShape(Region.getInstance(shape, null));
  peer.setTextured(IS(TEXTURED, styleBits));

All of them are executed before "platformWindow.setVisible(visible);" why do we need one more call to trigger updateOpaque?

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PR: https://git.openjdk.java.net/jdk/pull/5373