From 93b5f0081dd7b379e5d88da85b0779cdee0256c9 Mon Sep 17 00:00:00 2001
From: Karl Tauber <karl@jformdesigner.com>
Date: Mon, 15 Nov 2021 00:24:56 +0100
Subject: [PATCH] Window decorations: reduced number of
 FlatTitlePane.updateNativeTitleBarHeightAndHitTestSpots() invokations

---
 .../main/java/com/formdev/flatlaf/ui/FlatTitlePane.java   | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java
index d79e64f9..38a45cf5 100644
--- a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java
+++ b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java
@@ -711,9 +711,15 @@ debug*/
 		return window != null && FlatNativeWindowBorder.hasCustomDecoration( window );
 	}
 
+	// used to invoke updateNativeTitleBarHeightAndHitTestSpots() only once from latest invokeLater()
+	private int laterCounter;
+
 	protected void updateNativeTitleBarHeightAndHitTestSpotsLater() {
+		laterCounter++;
 		EventQueue.invokeLater( () -> {
-			updateNativeTitleBarHeightAndHitTestSpots();
+			laterCounter--;
+			if( laterCounter == 0 )
+				updateNativeTitleBarHeightAndHitTestSpots();
 		} );
 	}