TabbedPane: no longer add (internal) tab close button component as child to JTabbedPane (issue #219)

CHANGELOG.md

@@ -12,14 +12,16 @@ FlatLaf Change Log
     and "One Dark" themes.
 - TabbedPane: Support hiding tab area if it contains only one tab. (set client
   property `JTabbedPane.hideTabAreaWithOneTab` to `true`)
-- Table: Do not paint last vertical grid line if auto-resize mode is not off.
-  (issue #46)
-- Table: Fixed unstable grid line thickness when scaled on HiDPI screens. (issue
-  #152)
 
 
 #### Fixed bugs
 
+- Table: Do not paint last vertical grid line if auto-resize mode is not off.
+  (issue #46)
+- Table: Fixed unstable grid line thickness when scaled on HiDPI screens. (issue
+  #152)
+- TabbedPane: No longer add (internal) tab close button component as child to
+  `JTabbedPane`. (issue #219)
 - Custom window decorations: Title bar was not hidden if window is in
   full-screen mode. (issue #212)
 

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTabbedPaneUI.java

@@ -362,11 +362,6 @@ public class FlatTabbedPaneUI
 	protected void installComponents() {
 		super.installComponents();
 
-		// create tab close button
-		tabCloseButton = new TabCloseButton();
-		tabCloseButton.setVisible( false );
-		tabPane.add( tabCloseButton );
-
 		// find scrollable tab viewport
 		tabViewport = null;
 		if( isScrollTabLayout() ) {
@@ -393,11 +388,7 @@ public class FlatTabbedPaneUI
 
 		super.uninstallComponents();
 
-		if( tabCloseButton != null ) {
-			tabPane.remove( tabCloseButton );
-			tabCloseButton = null;
-		}
-
+		tabCloseButton = null;
 		tabViewport = null;
 	}
 
@@ -934,6 +925,12 @@ public class FlatTabbedPaneUI
 	}
 
 	protected void paintTabCloseButton( Graphics g, int tabIndex, int x, int y, int w, int h ) {
+		// create tab close button
+		if( tabCloseButton == null ) {
+			tabCloseButton = new TabCloseButton();
+			tabCloseButton.setVisible( false );
+		}
+
 		// update state of tab close button
 		boolean rollover = (tabIndex == getRolloverTab());
 		ButtonModel bm = tabCloseButton.getModel();