release 0.40

- ComboBox, Spinner and TextField: support disabling round border style per component, if globally enabled
(issue #148)

CHANGELOG.md

@@ -1,6 +1,24 @@
 FlatLaf Change Log
 ==================
 
+## 0.40
+
+#### New features
+
+- Table: Detect whether component is used in cell editor and automatically
+  disable round border style and reduce cell editor outer border width (used for
+  focus indicator) to zero. (issue #148)
+- ComboBox, Spinner and TextField: Support disabling round border style per
+  component, if globally enabled (set client property `JComponent.roundRect` to
+  `false`). (issue #148)
+
+#### Fixed bugs
+
+- Custom window decorations: Embedded menu bar did not always respond to mouse
+  events after adding menus and when running in JetBrains Runtime. (issue #151)
+- IntelliJ Themes: Fixed NPE in Solarized themes on scroll bar hover.
+
+
 ## 0.39
 
 #### New features

build.gradle.kts

@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-val releaseVersion = "0.39"
-val developmentVersion = "0.40-SNAPSHOT"
+val releaseVersion = "0.40"
+val developmentVersion = "0.41-SNAPSHOT"
 
 version = if( java.lang.Boolean.getBoolean( "release" ) ) releaseVersion else developmentVersion
 

flatlaf-core/src/main/java/com/formdev/flatlaf/FlatClientProperties.java

@@ -314,6 +314,15 @@ public interface FlatClientProperties
 		return (value instanceof Boolean) ? (boolean) value : defaultValue;
 	}
 
+	/**
+	 * Checks whether a client property of a component is a {@link Boolean} and returns its value.
+	 * If the client property is not set, or not a {@link Boolean}, defaultValue is returned.
+	 */
+	static Boolean clientPropertyBooleanStrict( JComponent c, String key, Boolean defaultValue ) {
+		Object value = c.getClientProperty( key );
+		return (value instanceof Boolean) ? (Boolean) value : defaultValue;
+	}
+
 	/**
 	 * Checks whether a client property of a component is an integer and returns its value.
 	 * If the client property is not set, or not an integer, defaultValue is returned.

flatlaf-core/src/main/java/com/formdev/flatlaf/IntelliJTheme.java

@@ -263,6 +263,9 @@ public class IntelliJTheme
 			for( Map.Entry<String, Object> e : ((Map<String, Object>)value).entrySet() )
 				apply( key + '.' + e.getKey(), e.getValue(), defaults, defaultsKeysCache, uiKeys );
 		} else {
+			if( "".equals( value ) )
+				return; // ignore empty value
+
 			uiKeys.add( key );
 
 			// fix ComboBox size and Spinner border in all Material UI Lite themes

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

@@ -87,15 +87,14 @@ public class FlatBorder
 		try {
 			FlatUIUtils.setRenderingHints( g2 );
 
-			boolean isCellEditor = isCellEditor( c );
-			float focusWidth = isCellEditor ? 0 : scale( (float) getFocusWidth( c ) );
+			float focusWidth = scale( (float) getFocusWidth( c ) );
 			float borderWidth = scale( (float) getBorderWidth( c ) );
-			float arc = isCellEditor ? 0 : scale( (float) getArc( c ) );
+			float arc = scale( (float) getArc( c ) );
 			Color outlineColor = getOutlineColor( c );
 
 			// paint outer border
 			if( outlineColor != null || isFocused( c ) ) {
-				float innerWidth = !isCellEditor && !(c instanceof JScrollPane)
+				float innerWidth = !isCellEditor( c ) && !(c instanceof JScrollPane)
 					? (outlineColor != null ? innerOutlineWidth : innerFocusWidth)
 					: 0;
 
@@ -204,8 +203,7 @@ public class FlatBorder
 
 	@Override
 	public Insets getBorderInsets( Component c, Insets insets ) {
-		boolean isCellEditor = isCellEditor( c );
-		float focusWidth = isCellEditor ? 0 : scale( (float) getFocusWidth( c ) );
+		float focusWidth = scale( (float) getFocusWidth( c ) );
 		float ow = focusWidth + scale( (float) getLineWidth( c ) );
 
 		insets = super.getBorderInsets( c, insets );
@@ -214,7 +212,7 @@ public class FlatBorder
 		insets.bottom = Math.round( scale( (float) insets.bottom ) + ow );
 		insets.right = Math.round( scale( (float) insets.right ) + ow );
 
-		if( isCellEditor ) {
+		if( isCellEditor( c ) ) {
 			// remove top and bottom insets if used as cell editor
 			insets.top = insets.bottom = 0;
 
@@ -232,6 +230,9 @@ public class FlatBorder
 	 * Returns the (unscaled) thickness of the outer focus border.
 	 */
 	protected int getFocusWidth( Component c ) {
+		if( isCellEditor( c ) )
+			return 0;
+
 		return focusWidth;
 	}
 

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

@@ -141,6 +141,9 @@ public class FlatButtonBorder
 
 	@Override
 	protected int getArc( Component c ) {
+		if( isCellEditor( c ) )
+			return 0;
+
 		switch( FlatButtonUI.getButtonType( c ) ) {
 			case FlatButtonUI.TYPE_SQUARE: return 0;
 			case FlatButtonUI.TYPE_ROUND_RECT: return Short.MAX_VALUE;

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

@@ -123,6 +123,14 @@ public class FlatMenuUI
 		};
 	}
 
+	@Override
+	public Dimension getMinimumSize( JComponent c ) {
+		// avoid that top-level menus (in menu bar) are made smaller if horizontal space is rare
+		// same code is in BasicMenuUI since Java 10
+		// see https://bugs.openjdk.java.net/browse/JDK-8178430
+		return ((JMenu)menuItem).isTopLevelMenu() ? c.getPreferredSize() : null;
+	}
+
 	@Override
 	protected Dimension getPreferredMenuItemSize( JComponent c, Icon checkIcon, Icon arrowIcon, int defaultTextIconGap ) {
 		return renderer.getPreferredMenuItemSize();

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

@@ -304,6 +304,9 @@ public class FlatRootPaneUI
 			Container contentPane = rootPane.getContentPane();
 			if( contentPane != null )
 				contentPane.setBounds( 0, nextY, width, Math.max( height - nextY, 0 ) );
+
+			if( titlePane != null )
+				titlePane.menuBarLayouted();
 		}
 
 		@Override

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

@@ -33,6 +33,10 @@ public class FlatRoundBorder
 
 	@Override
 	protected int getArc( Component c ) {
-		return FlatUIUtils.isRoundRect( c ) ? Short.MAX_VALUE : arc;
+		if( isCellEditor( c ) )
+			return 0;
+
+		Boolean roundRect = FlatUIUtils.isRoundRect( c );
+		return roundRect != null ? (roundRect ? Short.MAX_VALUE : 0) : arc;
 	}
 }

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

@@ -33,6 +33,10 @@ public class FlatTextBorder
 
 	@Override
 	protected int getArc( Component c ) {
-		return FlatUIUtils.isRoundRect( c ) ? Short.MAX_VALUE : arc;
+		if( isCellEditor( c ) )
+			return 0;
+
+		Boolean roundRect = FlatUIUtils.isRoundRect( c );
+		return roundRect != null ? (roundRect ? Short.MAX_VALUE : 0) : arc;
 	}
 }

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

@@ -19,6 +19,7 @@ package com.formdev.flatlaf.ui;
 import java.awt.BorderLayout;
 import java.awt.Color;
 import java.awt.Component;
+import java.awt.Container;
 import java.awt.Dialog;
 import java.awt.Dimension;
 import java.awt.EventQueue;
@@ -165,7 +166,25 @@ public class FlatTitlePane
 
 		createButtons();
 
-		setLayout( new BorderLayout() );
+		setLayout( new BorderLayout() {
+			@Override
+			public void layoutContainer( Container target ) {
+				super.layoutContainer( target );
+
+				// make left panel (with embedded menu bar) smaller if horizontal space is rare
+				// to avoid that embedded menu bar overlaps button bar
+				Insets insets = target.getInsets();
+				int width = target.getWidth() - insets.left - insets.right;
+				if( leftPanel.getWidth() + buttonPanel.getWidth() > width ) {
+					int oldWidth = leftPanel.getWidth();
+					int newWidth = Math.max( width - buttonPanel.getWidth(), 0 );
+					leftPanel.setSize( newWidth, leftPanel.getHeight() );
+					if( !getComponentOrientation().isLeftToRight() )
+						leftPanel.setLocation( leftPanel.getX() + (oldWidth - newWidth), leftPanel.getY() );
+				}
+			}
+		} );
+
 		add( leftPanel, BorderLayout.LINE_START );
 		add( titleLabel, BorderLayout.CENTER );
 		add( buttonPanel, BorderLayout.LINE_END );
@@ -391,6 +410,12 @@ public class FlatTitlePane
 		return FlatUIUtils.subtractInsets( bounds, UIScale.scale( getMenuBarMargins() ) );
 	}
 
+	protected Insets getMenuBarMargins() {
+		return getComponentOrientation().isLeftToRight()
+			? menuBarMargins
+			: new Insets( menuBarMargins.top, menuBarMargins.right, menuBarMargins.bottom, menuBarMargins.left );
+	}
+
 	protected void menuBarChanged() {
 		menuBarPlaceholder.invalidate();
 
@@ -400,12 +425,27 @@ public class FlatTitlePane
 		} );
 	}
 
-	protected Insets getMenuBarMargins() {
-		return getComponentOrientation().isLeftToRight()
-			? menuBarMargins
-			: new Insets( menuBarMargins.top, menuBarMargins.right, menuBarMargins.bottom, menuBarMargins.left );
+	protected void menuBarLayouted() {
+		updateJBRHitTestSpotsAndTitleBarHeightLater();
 	}
 
+/*debug
+	@Override
+	public void paint( Graphics g ) {
+		super.paint( g );
+
+		if( debugTitleBarHeight > 0 ) {
+			g.setColor( Color.green );
+			g.drawLine( 0, debugTitleBarHeight, getWidth(), debugTitleBarHeight );
+		}
+		if( debugHitTestSpots != null ) {
+			g.setColor( Color.blue );
+			for( Rectangle r : debugHitTestSpots )
+				g.drawRect( r.x, r.y, r.width, r.height );
+		}
+	}
+debug*/
+
 	@Override
 	protected void paintComponent( Graphics g ) {
 		g.setColor( getBackground() );
@@ -583,6 +623,12 @@ public class FlatTitlePane
 			titleBarHeight--;
 
 		JBRCustomDecorations.setHitTestSpotsAndTitleBarHeight( window, hitTestSpots, titleBarHeight );
+
+/*debug
+		debugHitTestSpots = hitTestSpots;
+		debugTitleBarHeight = titleBarHeight;
+		repaint();
+debug*/
 	}
 
 	protected void addJBRHitTestSpot( JComponent c, boolean subtractMenuBarMargins, List<Rectangle> hitTestSpots ) {
@@ -599,6 +645,11 @@ public class FlatTitlePane
 		hitTestSpots.add( r );
 	}
 
+/*debug
+	private List<Rectangle> debugHitTestSpots;
+	private int debugTitleBarHeight;
+debug*/
+
 	//---- class TitlePaneBorder ----------------------------------------------
 
 	protected class FlatTitlePaneBorder

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

@@ -37,6 +37,7 @@ import java.awt.geom.Rectangle2D;
 import java.awt.geom.RoundRectangle2D;
 import java.util.function.Consumer;
 import javax.swing.JComponent;
+import javax.swing.JTable;
 import javax.swing.LookAndFeel;
 import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
@@ -137,11 +138,21 @@ public class FlatUIUtils
 	}
 
 	public static boolean isCellEditor( Component c ) {
-		// check whether used as cell editor in file chooser
-		//   Tree.cellEditor is set in sun.swing.FilePane.editFileName()
+		// check whether used in cell editor (check 3 levels up)
+		Component c2 = c;
+		for( int i = 0; i <= 2 && c2 != null; i++ ) {
+			Container parent = c2.getParent();
+			if( parent instanceof JTable && ((JTable)parent).getEditorComponent() == c2 )
+				return true;
+
+			c2 = parent;
+		}
+
+		// check whether used as cell editor
 		//   Table.editor is set in JTable.GenericEditor constructor
+		//   Tree.cellEditor is set in sun.swing.FilePane.editFileName()
 		String name = c.getName();
-		if( "Tree.cellEditor".equals( name ) || "Table.editor".equals( name ) )
+		if( "Table.editor".equals( name ) || "Tree.cellEditor".equals( name ) )
 			return true;
 
 		// for using combo box as cell editor in table
@@ -159,9 +170,11 @@ public class FlatUIUtils
 			keyboardFocusManager.getActiveWindow() == SwingUtilities.windowForComponent( c );
 	}
 
-	public static boolean isRoundRect( Component c ) {
-		return c instanceof JComponent && FlatClientProperties.clientPropertyBoolean(
-			(JComponent) c, FlatClientProperties.COMPONENT_ROUND_RECT, false );
+	public static Boolean isRoundRect( Component c ) {
+		return (c instanceof JComponent)
+			? FlatClientProperties.clientPropertyBooleanStrict(
+				(JComponent) c, FlatClientProperties.COMPONENT_ROUND_RECT, null )
+			: null;
 	}
 
 	/**

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatComponents2Test.java

@@ -16,6 +16,9 @@
 
 package com.formdev.flatlaf.testing;
 
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.EventQueue;
 import java.awt.datatransfer.DataFlavor;
 import java.awt.datatransfer.StringSelection;
 import java.awt.datatransfer.Transferable;
@@ -91,6 +94,33 @@ public class FlatComponents2Test
 		table1.setColumnSelectionAllowed( columnSelectionCheckBox.isSelected() );
 	}
 
+	private void showHorizontalLinesChanged() {
+		table1.setShowHorizontalLines( showHorizontalLinesCheckBox.isSelected() );
+	}
+
+	private void showVerticalLinesChanged() {
+		table1.setShowVerticalLines( showVerticalLinesCheckBox.isSelected() );
+	}
+
+	private void intercellSpacingChanged() {
+		table1.setIntercellSpacing( intercellSpacingCheckBox.isSelected() ? new Dimension( 1, 1 ) : new Dimension() );
+	}
+
+	private void redGridColorChanged() {
+		table1.setGridColor( redGridColorCheckBox.isSelected() ? Color.red : UIManager.getColor( "Table.gridColor" ) );
+	}
+
+	@Override
+	public void updateUI() {
+		super.updateUI();
+
+		EventQueue.invokeLater( () -> {
+			showHorizontalLinesChanged();
+			showVerticalLinesChanged();
+			intercellSpacingChanged();
+		} );
+	}
+
 	@SuppressWarnings( { "unchecked", "rawtypes" } )
 	private void initComponents() {
 		// JFormDesigner - Component initialization - DO NOT MODIFY  //GEN-BEGIN:initComponents
@@ -114,6 +144,10 @@ public class FlatComponents2Test
 		tableHeaderButtonCheckBox = new JCheckBox();
 		rowSelectionCheckBox = new JCheckBox();
 		columnSelectionCheckBox = new JCheckBox();
+		showHorizontalLinesCheckBox = new JCheckBox();
+		showVerticalLinesCheckBox = new JCheckBox();
+		intercellSpacingCheckBox = new JCheckBox();
+		redGridColorCheckBox = new JCheckBox();
 
 		//======== this ========
 		setLayout(new MigLayout(
@@ -127,6 +161,7 @@ public class FlatComponents2Test
 			"[]" +
 			"[::200]" +
 			"[150,grow]" +
+			"[]" +
 			"[]"));
 
 		//---- textFieldLabel ----
@@ -333,6 +368,26 @@ public class FlatComponents2Test
 		columnSelectionCheckBox.setText("column selection");
 		columnSelectionCheckBox.addActionListener(e -> columnSelectionChanged());
 		add(columnSelectionCheckBox, "cell 0 4 3 1");
+
+		//---- showHorizontalLinesCheckBox ----
+		showHorizontalLinesCheckBox.setText("show horizontal lines");
+		showHorizontalLinesCheckBox.addActionListener(e -> showHorizontalLinesChanged());
+		add(showHorizontalLinesCheckBox, "cell 0 5 3 1");
+
+		//---- showVerticalLinesCheckBox ----
+		showVerticalLinesCheckBox.setText("show vertical lines");
+		showVerticalLinesCheckBox.addActionListener(e -> showVerticalLinesChanged());
+		add(showVerticalLinesCheckBox, "cell 0 5 3 1");
+
+		//---- intercellSpacingCheckBox ----
+		intercellSpacingCheckBox.setText("intercell spacing");
+		intercellSpacingCheckBox.addActionListener(e -> intercellSpacingChanged());
+		add(intercellSpacingCheckBox, "cell 0 5 3 1");
+
+		//---- redGridColorCheckBox ----
+		redGridColorCheckBox.setText("red grid color");
+		redGridColorCheckBox.addActionListener(e -> redGridColorChanged());
+		add(redGridColorCheckBox, "cell 0 5 3 1");
 		// JFormDesigner - End of component initialization  //GEN-END:initComponents
 
 		((JComboBox)((DefaultCellEditor)table1.getColumnModel().getColumn( 3 ).getCellEditor()).getComponent()).setEditable( true );
@@ -349,6 +404,10 @@ public class FlatComponents2Test
 	private JCheckBox tableHeaderButtonCheckBox;
 	private JCheckBox rowSelectionCheckBox;
 	private JCheckBox columnSelectionCheckBox;
+	private JCheckBox showHorizontalLinesCheckBox;
+	private JCheckBox showVerticalLinesCheckBox;
+	private JCheckBox intercellSpacingCheckBox;
+	private JCheckBox redGridColorCheckBox;
 	// JFormDesigner - End of variables declaration  //GEN-END:variables
 
 	//---- class DummyTransferHandler -----------------------------------------

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatComponents2Test.jfd

@@ -1,4 +1,4 @@
-JFDML JFormDesigner: "7.0.1.0.272" Java: "13.0.2" encoding: "UTF-8"
+JFDML JFormDesigner: "7.0.2.0.298" Java: "14" encoding: "UTF-8"
 
 new FormModel {
 	contentType: "form/swing"
@@ -9,7 +9,7 @@ new FormModel {
 		add( new FormContainer( "com.formdev.flatlaf.testing.FlatTestPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
 			"$layoutConstraints": "ltr,insets dialog,hidemode 3"
 			"$columnConstraints": "[][200][200]"
-			"$rowConstraints": "[][][::200][150,grow][]"
+			"$rowConstraints": "[][][::200][150,grow][][]"
 		} ) {
 			name: "this"
 			add( new FormComponent( "javax.swing.JLabel" ) {
@@ -316,6 +316,46 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 0 4 3 1"
 			} )
+			add( new FormComponent( "javax.swing.JCheckBox" ) {
+				name: "showHorizontalLinesCheckBox"
+				"text": "show horizontal lines"
+				auxiliary() {
+					"JavaCodeGenerator.variableLocal": false
+				}
+				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "showHorizontalLinesChanged", false ) )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 5 3 1"
+			} )
+			add( new FormComponent( "javax.swing.JCheckBox" ) {
+				name: "showVerticalLinesCheckBox"
+				"text": "show vertical lines"
+				auxiliary() {
+					"JavaCodeGenerator.variableLocal": false
+				}
+				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "showVerticalLinesChanged", false ) )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 5 3 1"
+			} )
+			add( new FormComponent( "javax.swing.JCheckBox" ) {
+				name: "intercellSpacingCheckBox"
+				"text": "intercell spacing"
+				auxiliary() {
+					"JavaCodeGenerator.variableLocal": false
+				}
+				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "intercellSpacingChanged", false ) )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 5 3 1"
+			} )
+			add( new FormComponent( "javax.swing.JCheckBox" ) {
+				name: "redGridColorCheckBox"
+				"text": "red grid color"
+				auxiliary() {
+					"JavaCodeGenerator.variableLocal": false
+				}
+				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "redGridColorChanged", false ) )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 5 3 1"
+			} )
 		}, new FormLayoutConstraints( null ) {
 			"location": new java.awt.Point( 0, 0 )
 			"size": new java.awt.Dimension( 790, 715 )

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatTestFrame.java

@@ -62,6 +62,7 @@ public class FlatTestFrame
 	private FlatInspector inspector;
 
 	public boolean useApplyComponentOrientation;
+	public boolean applyComponentOrientationToFrame;
 
 	public static FlatTestFrame create( String[] args, String title ) {
 		DemoPrefs.init( PREFS_ROOT_PATH );
@@ -439,7 +440,9 @@ public class FlatTestFrame
 			? ComponentOrientation.RIGHT_TO_LEFT
 			: ComponentOrientation.LEFT_TO_RIGHT;
 
-		if( useApplyComponentOrientation )
+		if( applyComponentOrientationToFrame )
+			applyComponentOrientation( orientation );
+		else if( useApplyComponentOrientation )
 			content.applyComponentOrientation( orientation );
 		else {
 			updateComponentsRecur( content, (c, type) -> {

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatWindowDecorationsTest.java

@@ -22,6 +22,7 @@ import java.awt.event.*;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
+import java.util.Random;
 import javax.swing.*;
 import com.formdev.flatlaf.FlatClientProperties;
 import net.miginfocom.swing.*;
@@ -39,6 +40,7 @@ public class FlatWindowDecorationsTest
 			JDialog.setDefaultLookAndFeelDecorated( true );
 
 			FlatTestFrame frame = FlatTestFrame.create( args, "FlatWindowDecorationsTest" );
+			frame.applyComponentOrientationToFrame = true;
 
 			// WARNING: Do not this in real-world programs.
 //			frame.setUndecorated( true );
@@ -117,6 +119,32 @@ public class FlatWindowDecorationsTest
 			rootPane.putClientProperty( FlatClientProperties.MENU_BAR_EMBEDDED, menuBarEmbeddedCheckBox.isSelected() );
 	}
 
+	private void addMenu() {
+		JMenu menu = new JMenu( "Hello" );
+		menu.add( new JMenuItem( "world" ) );
+		menuBar.add( menu );
+		menuBar.revalidate();
+	}
+
+	private void removeMenu() {
+		int menuCount = menuBar.getMenuCount();
+		if( menuCount <= 0 )
+			return;
+
+		menuBar.remove( menuCount - 1 );
+		menuBar.revalidate();
+	}
+
+	private void changeMenu() {
+		int menuCount = menuBar.getMenuCount();
+		if( menuCount <= 0 )
+			return;
+
+		int len = new Random().nextInt( 20 );
+		String text = "1234567890abcdefghij".substring( 0, len + 1 );
+		menuBar.getMenu( menuCount - 1 ).setText( text );
+	}
+
 	private void resizableChanged() {
 		Window window = SwingUtilities.windowForComponent( this );
 		if( window instanceof Frame )
@@ -218,6 +246,9 @@ public class FlatWindowDecorationsTest
 	private void initComponents() {
 		// JFormDesigner - Component initialization - DO NOT MODIFY  //GEN-BEGIN:initComponents
 		menuBarCheckBox = new JCheckBox();
+		JButton addMenuButton = new JButton();
+		JButton removeMenuButton = new JButton();
+		JButton changeMenuButton = new JButton();
 		menuBarEmbeddedCheckBox = new JCheckBox();
 		resizableCheckBox = new JCheckBox();
 		maximizedBoundsCheckBox = new JCheckBox();
@@ -271,7 +302,7 @@ public class FlatWindowDecorationsTest
 			"ltr,insets dialog,hidemode 3",
 			// columns
 			"[left]para" +
-			"[fill]",
+			"[left]",
 			// rows
 			"para[]0" +
 			"[]0" +
@@ -287,6 +318,21 @@ public class FlatWindowDecorationsTest
 		menuBarCheckBox.addActionListener(e -> menuBarChanged());
 		add(menuBarCheckBox, "cell 0 0");
 
+		//---- addMenuButton ----
+		addMenuButton.setText("Add menu");
+		addMenuButton.addActionListener(e -> addMenu());
+		add(addMenuButton, "cell 1 0 1 2,align left top,grow 0 0");
+
+		//---- removeMenuButton ----
+		removeMenuButton.setText("Remove menu");
+		removeMenuButton.addActionListener(e -> removeMenu());
+		add(removeMenuButton, "cell 1 0 1 2,align left top,grow 0 0");
+
+		//---- changeMenuButton ----
+		changeMenuButton.setText("Change menu");
+		changeMenuButton.addActionListener(e -> changeMenu());
+		add(changeMenuButton, "cell 1 0 1 2,align left top,grow 0 0");
+
 		//---- menuBarEmbeddedCheckBox ----
 		menuBarEmbeddedCheckBox.setText("embedded menu bar");
 		menuBarEmbeddedCheckBox.setSelected(true);

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatWindowDecorationsTest.jfd

@@ -1,4 +1,4 @@
-JFDML JFormDesigner: "7.0.2.0.298" Java: "13.0.2" encoding: "UTF-8"
+JFDML JFormDesigner: "7.0.2.0.298" Java: "14" encoding: "UTF-8"
 
 new FormModel {
 	contentType: "form/swing"
@@ -8,7 +8,7 @@ new FormModel {
 		}
 		add( new FormContainer( "com.formdev.flatlaf.testing.FlatTestPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
 			"$layoutConstraints": "ltr,insets dialog,hidemode 3"
-			"$columnConstraints": "[left]para[fill]"
+			"$columnConstraints": "[left]para[left]"
 			"$rowConstraints": "para[]0[]0[]0[][][top][]"
 		} ) {
 			name: "this"
@@ -23,6 +23,27 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 0 0"
 			} )
+			add( new FormComponent( "javax.swing.JButton" ) {
+				name: "addMenuButton"
+				"text": "Add menu"
+				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "addMenu", false ) )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 0 1 2,align left top,grow 0 0"
+			} )
+			add( new FormComponent( "javax.swing.JButton" ) {
+				name: "removeMenuButton"
+				"text": "Remove menu"
+				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "removeMenu", false ) )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 0 1 2,align left top,grow 0 0"
+			} )
+			add( new FormComponent( "javax.swing.JButton" ) {
+				name: "changeMenuButton"
+				"text": "Change menu"
+				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "changeMenu", false ) )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 0 1 2,align left top,grow 0 0"
+			} )
 			add( new FormComponent( "javax.swing.JCheckBox" ) {
 				name: "menuBarEmbeddedCheckBox"
 				"text": "embedded menu bar"
@@ -238,7 +259,7 @@ new FormModel {
 			} )
 		}, new FormLayoutConstraints( null ) {
 			"location": new java.awt.Point( 0, 0 )
-			"size": new java.awt.Dimension( 450, 380 )
+			"size": new java.awt.Dimension( 550, 380 )
 		} )
 		add( new FormContainer( "javax.swing.JMenuBar", new FormLayoutManager( class javax.swing.JMenuBar ) ) {
 			name: "menuBar"