Mnemonics: scale underline; added mnemonic test app

FlatTestFrame: Metal Laf is now at F12 so that F10 is unused because F10 is a standard key to move focus to menu bar

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

@@ -42,6 +42,7 @@ import javax.swing.UIManager;
 import javax.swing.plaf.UIResource;
 import com.formdev.flatlaf.FlatClientProperties;
 import com.formdev.flatlaf.util.DerivedColor;
+import com.formdev.flatlaf.util.Graphics2DProxy;
 import com.formdev.flatlaf.util.HiDPIUtils;
 import com.formdev.flatlaf.util.JavaCompatibility;
 import com.formdev.flatlaf.util.UIScale;
@@ -427,6 +428,23 @@ public class FlatUIUtils
 	public static void drawStringUnderlineCharAt( JComponent c, Graphics g,
 		String text, int underlinedIndex, int x, int y )
 	{
+		// scale underline height if necessary
+		if( underlinedIndex >= 0 && UIScale.getUserScaleFactor() > 1 ) {
+			g = new Graphics2DProxy( (Graphics2D) g ) {
+				@Override
+				public void fillRect( int x, int y, int width, int height ) {
+					if( height == 1 ) {
+						// scale height and correct y position
+						// (using 0.9f so that underline height is 1 at scale factor 1.5x)
+						height = Math.round( UIScale.scale( 0.9f ) );
+						y += height - 1;
+					}
+
+					super.fillRect( x, y, width, height );
+				}
+			};
+		}
+
 		JavaCompatibility.drawStringUnderlineCharAt( c, g, text, underlinedIndex, x, y );
 	}
 

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

@@ -0,0 +1,439 @@
+/*
+ * Copyright 2020 FormDev Software GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.formdev.flatlaf.testing;
+
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+import net.miginfocom.swing.*;
+
+/**
+ * @author Karl Tauber
+ */
+public class FlatMnemonicsTest
+	extends FlatTestPanel
+{
+	public static void main( String[] args ) {
+		SwingUtilities.invokeLater( () -> {
+			FlatTestFrame frame = FlatTestFrame.create( args, "FlatMnemonicsTest" );
+			frame.showFrame( FlatMnemonicsTest::new, panel -> ((FlatMnemonicsTest)panel).menuBar );
+		} );
+	}
+
+	FlatMnemonicsTest() {
+		initComponents();
+	}
+
+	private void menuItemActionPerformed(ActionEvent e) {
+		SwingUtilities.invokeLater( () -> {
+			JOptionPane.showMessageDialog( this, e.getActionCommand(), "Menu Item", JOptionPane.PLAIN_MESSAGE );
+		} );
+	}
+
+	private void textArea1KeyReleased(KeyEvent e) {
+		if( e.getKeyCode() == KeyEvent.VK_ALT ) {
+			System.out.println( "++++ consume Alt key on release +++++++++++++++++++++++++++++++++++++++++++++++++++++" );
+			e.consume();
+		}
+	}
+
+	private void alwaysShowMnemonicsChanged() {
+		UIManager.put( "Component.hideMnemonics", !alwaysShowMnemonicsCheckBox.isSelected() );
+		SwingUtilities.windowForComponent( this ).repaint();
+	}
+
+	private void initComponents() {
+		// JFormDesigner - Component initialization - DO NOT MODIFY  //GEN-BEGIN:initComponents
+		JLabel label1 = new JLabel();
+		JTextField textField1 = new JTextField();
+		JLabel label2 = new JLabel();
+		JTextField textField2 = new JTextField();
+		JLabel label3 = new JLabel();
+		JComboBox<String> comboBox1 = new JComboBox<>();
+		JCheckBox checkBox1 = new JCheckBox();
+		JButton button1 = new JButton();
+		JLabel label4 = new JLabel();
+		JScrollPane scrollPane1 = new JScrollPane();
+		JTextArea textArea1 = new JTextArea();
+		JTabbedPane tabbedPane1 = new JTabbedPane();
+		JPanel panel1 = new JPanel();
+		JLabel label7 = new JLabel();
+		JPanel panel2 = new JPanel();
+		JLabel label6 = new JLabel();
+		JPanel panel3 = new JPanel();
+		JLabel label5 = new JLabel();
+		alwaysShowMnemonicsCheckBox = new JCheckBox();
+		menuBar = new JMenuBar();
+		JMenu fileMenu = new JMenu();
+		JMenuItem newMenuItem = new JMenuItem();
+		JMenuItem openMenuItem = new JMenuItem();
+		JMenuItem closeMenuItem = new JMenuItem();
+		JMenuItem closeMenuItem2 = new JMenuItem();
+		JMenuItem exitMenuItem = new JMenuItem();
+		JMenu editMenu = new JMenu();
+		JMenuItem undoMenuItem = new JMenuItem();
+		JMenuItem redoMenuItem = new JMenuItem();
+		JMenuItem cutMenuItem = new JMenuItem();
+		JMenuItem copyMenuItem = new JMenuItem();
+		JMenuItem pasteMenuItem = new JMenuItem();
+		JMenuItem deleteMenuItem = new JMenuItem();
+		JMenu viewMenu = new JMenu();
+		JCheckBoxMenuItem checkBoxMenuItem1 = new JCheckBoxMenuItem();
+		JMenu menu1 = new JMenu();
+		JMenu subViewsMenu = new JMenu();
+		JMenu subSubViewsMenu = new JMenu();
+		JMenuItem errorLogViewMenuItem = new JMenuItem();
+		JMenuItem searchViewMenuItem = new JMenuItem();
+		JMenuItem projectViewMenuItem = new JMenuItem();
+		JMenuItem structureViewMenuItem = new JMenuItem();
+		JMenuItem propertiesViewMenuItem = new JMenuItem();
+		JMenu helpMenu = new JMenu();
+		JMenuItem aboutMenuItem = new JMenuItem();
+		JPopupMenu popupMenu1 = new JPopupMenu();
+		JMenuItem cutMenuItem2 = new JMenuItem();
+		JMenuItem copyMenuItem2 = new JMenuItem();
+		JMenuItem pasteMenuItem2 = new JMenuItem();
+
+		//======== this ========
+		setLayout(new MigLayout(
+			"ltr,insets dialog,hidemode 3",
+			// columns
+			"[fill]" +
+			"[150,fill]para" +
+			"[grow,fill]",
+			// rows
+			"[]" +
+			"[]" +
+			"[]" +
+			"[]" +
+			"[]para" +
+			"[]" +
+			"[]para" +
+			"[]"));
+
+		//---- label1 ----
+		label1.setText("Name");
+		label1.setLabelFor(textField1);
+		label1.setDisplayedMnemonic('N');
+		add(label1, "cell 0 0,alignx left,growx 0");
+
+		//---- textField1 ----
+		textField1.setComponentPopupMenu(popupMenu1);
+		add(textField1, "cell 1 0");
+
+		//---- label2 ----
+		label2.setText("Phone");
+		label2.setLabelFor(textField2);
+		label2.setDisplayedMnemonic('P');
+		add(label2, "cell 0 1");
+
+		//---- textField2 ----
+		textField2.setComponentPopupMenu(popupMenu1);
+		add(textField2, "cell 1 1");
+
+		//---- label3 ----
+		label3.setText("Planet");
+		label3.setDisplayedMnemonic('A');
+		label3.setLabelFor(comboBox1);
+		add(label3, "cell 0 2");
+
+		//---- comboBox1 ----
+		comboBox1.setModel(new DefaultComboBoxModel<>(new String[] {
+			"Earth",
+			"Moon",
+			"Mars"
+		}));
+		comboBox1.setComponentPopupMenu(popupMenu1);
+		add(comboBox1, "cell 1 2");
+
+		//---- checkBox1 ----
+		checkBox1.setText("Astronaut");
+		checkBox1.setMnemonic('S');
+		checkBox1.setComponentPopupMenu(popupMenu1);
+		add(checkBox1, "cell 1 3");
+
+		//---- button1 ----
+		button1.setText("Lift off");
+		button1.setMnemonic('L');
+		button1.setComponentPopupMenu(popupMenu1);
+		add(button1, "cell 1 4,alignx left,growx 0");
+
+		//---- label4 ----
+		label4.setText("Text area that consumes Alt key:");
+		label4.setLabelFor(textArea1);
+		label4.setDisplayedMnemonic('T');
+		add(label4, "cell 1 5");
+
+		//======== scrollPane1 ========
+		{
+
+			//---- textArea1 ----
+			textArea1.setRows(4);
+			textArea1.setComponentPopupMenu(popupMenu1);
+			textArea1.addKeyListener(new KeyAdapter() {
+				@Override
+				public void keyReleased(KeyEvent e) {
+					textArea1KeyReleased(e);
+				}
+			});
+			scrollPane1.setViewportView(textArea1);
+		}
+		add(scrollPane1, "cell 1 6,grow");
+
+		//======== tabbedPane1 ========
+		{
+
+			//======== panel1 ========
+			{
+				panel1.setLayout(new FlowLayout());
+
+				//---- label7 ----
+				label7.setText("Guitar");
+				panel1.add(label7);
+			}
+			tabbedPane1.addTab("Guitar", panel1);
+			tabbedPane1.setMnemonicAt(0, 'G');
+
+			//======== panel2 ========
+			{
+				panel2.setLayout(new FlowLayout());
+
+				//---- label6 ----
+				label6.setText("Drums");
+				panel2.add(label6);
+			}
+			tabbedPane1.addTab("Drums", panel2);
+			tabbedPane1.setMnemonicAt(1, 'D');
+
+			//======== panel3 ========
+			{
+				panel3.setLayout(new FlowLayout());
+
+				//---- label5 ----
+				label5.setText("Keyboard");
+				panel3.add(label5);
+			}
+			tabbedPane1.addTab("Keyboard", panel3);
+			tabbedPane1.setMnemonicAt(2, 'K');
+		}
+		add(tabbedPane1, "cell 2 6,aligny top,growy 0");
+
+		//---- alwaysShowMnemonicsCheckBox ----
+		alwaysShowMnemonicsCheckBox.setText("Always show mnemonics");
+		alwaysShowMnemonicsCheckBox.setMnemonic('M');
+		alwaysShowMnemonicsCheckBox.addActionListener(e -> alwaysShowMnemonicsChanged());
+		add(alwaysShowMnemonicsCheckBox, "cell 0 7 2 1,alignx left,growx 0");
+
+		//======== menuBar ========
+		{
+
+			//======== fileMenu ========
+			{
+				fileMenu.setText("File");
+				fileMenu.setMnemonic('F');
+
+				//---- newMenuItem ----
+				newMenuItem.setText("New");
+				newMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_J, KeyEvent.CTRL_MASK));
+				newMenuItem.setMnemonic('N');
+				newMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+				fileMenu.add(newMenuItem);
+
+				//---- openMenuItem ----
+				openMenuItem.setText("Open");
+				openMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_J, KeyEvent.ALT_MASK));
+				openMenuItem.setMnemonic('O');
+				openMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+				fileMenu.add(openMenuItem);
+				fileMenu.addSeparator();
+
+				//---- closeMenuItem ----
+				closeMenuItem.setText("Close");
+				closeMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_J, KeyEvent.CTRL_MASK|KeyEvent.ALT_MASK));
+				closeMenuItem.setMnemonic('C');
+				closeMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+				fileMenu.add(closeMenuItem);
+
+				//---- closeMenuItem2 ----
+				closeMenuItem2.setText("Close All");
+				closeMenuItem2.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_J, KeyEvent.ALT_MASK|KeyEvent.SHIFT_MASK));
+				closeMenuItem2.addActionListener(e -> menuItemActionPerformed(e));
+				fileMenu.add(closeMenuItem2);
+				fileMenu.addSeparator();
+
+				//---- exitMenuItem ----
+				exitMenuItem.setText("Exit");
+				exitMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_J, Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()|KeyEvent.ALT_MASK|KeyEvent.SHIFT_MASK));
+				exitMenuItem.setMnemonic('X');
+				exitMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+				fileMenu.add(exitMenuItem);
+			}
+			menuBar.add(fileMenu);
+
+			//======== editMenu ========
+			{
+				editMenu.setText("Edit");
+				editMenu.setMnemonic('E');
+
+				//---- undoMenuItem ----
+				undoMenuItem.setText("Undo");
+				undoMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z, Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
+				undoMenuItem.setMnemonic('U');
+				undoMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+				editMenu.add(undoMenuItem);
+
+				//---- redoMenuItem ----
+				redoMenuItem.setText("Redo");
+				redoMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Y, Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
+				redoMenuItem.setMnemonic('R');
+				redoMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+				editMenu.add(redoMenuItem);
+				editMenu.addSeparator();
+
+				//---- cutMenuItem ----
+				cutMenuItem.setText("Cut");
+				cutMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
+				cutMenuItem.setMnemonic('C');
+				editMenu.add(cutMenuItem);
+
+				//---- copyMenuItem ----
+				copyMenuItem.setText("Copy");
+				copyMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
+				copyMenuItem.setMnemonic('O');
+				editMenu.add(copyMenuItem);
+
+				//---- pasteMenuItem ----
+				pasteMenuItem.setText("Paste");
+				pasteMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
+				pasteMenuItem.setMnemonic('P');
+				editMenu.add(pasteMenuItem);
+				editMenu.addSeparator();
+
+				//---- deleteMenuItem ----
+				deleteMenuItem.setText("Delete");
+				deleteMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0));
+				deleteMenuItem.setMnemonic('D');
+				deleteMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+				editMenu.add(deleteMenuItem);
+			}
+			menuBar.add(editMenu);
+
+			//======== viewMenu ========
+			{
+				viewMenu.setText("View");
+				viewMenu.setMnemonic('V');
+
+				//---- checkBoxMenuItem1 ----
+				checkBoxMenuItem1.setText("Show Toolbar");
+				checkBoxMenuItem1.setSelected(true);
+				checkBoxMenuItem1.setMnemonic('T');
+				checkBoxMenuItem1.addActionListener(e -> menuItemActionPerformed(e));
+				viewMenu.add(checkBoxMenuItem1);
+
+				//======== menu1 ========
+				{
+					menu1.setText("Show View");
+					menu1.setMnemonic('V');
+
+					//======== subViewsMenu ========
+					{
+						subViewsMenu.setText("Sub Views");
+						subViewsMenu.setMnemonic('S');
+
+						//======== subSubViewsMenu ========
+						{
+							subSubViewsMenu.setText("Sub sub Views");
+							subSubViewsMenu.setMnemonic('U');
+
+							//---- errorLogViewMenuItem ----
+							errorLogViewMenuItem.setText("Error Log");
+							errorLogViewMenuItem.setMnemonic('E');
+							errorLogViewMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+							subSubViewsMenu.add(errorLogViewMenuItem);
+						}
+						subViewsMenu.add(subSubViewsMenu);
+
+						//---- searchViewMenuItem ----
+						searchViewMenuItem.setText("Search");
+						searchViewMenuItem.setMnemonic('S');
+						searchViewMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+						subViewsMenu.add(searchViewMenuItem);
+					}
+					menu1.add(subViewsMenu);
+
+					//---- projectViewMenuItem ----
+					projectViewMenuItem.setText("Project");
+					projectViewMenuItem.setMnemonic('P');
+					projectViewMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+					menu1.add(projectViewMenuItem);
+
+					//---- structureViewMenuItem ----
+					structureViewMenuItem.setText("Structure");
+					structureViewMenuItem.setMnemonic('T');
+					structureViewMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+					menu1.add(structureViewMenuItem);
+
+					//---- propertiesViewMenuItem ----
+					propertiesViewMenuItem.setText("Properties");
+					propertiesViewMenuItem.setMnemonic('O');
+					propertiesViewMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+					menu1.add(propertiesViewMenuItem);
+				}
+				viewMenu.add(menu1);
+			}
+			menuBar.add(viewMenu);
+
+			//======== helpMenu ========
+			{
+				helpMenu.setText("Help");
+				helpMenu.setMnemonic('H');
+
+				//---- aboutMenuItem ----
+				aboutMenuItem.setText("About");
+				aboutMenuItem.setMnemonic('A');
+				aboutMenuItem.addActionListener(e -> menuItemActionPerformed(e));
+				helpMenu.add(aboutMenuItem);
+			}
+			menuBar.add(helpMenu);
+		}
+
+		//======== popupMenu1 ========
+		{
+
+			//---- cutMenuItem2 ----
+			cutMenuItem2.setText("Cut");
+			cutMenuItem2.setMnemonic('C');
+			popupMenu1.add(cutMenuItem2);
+
+			//---- copyMenuItem2 ----
+			copyMenuItem2.setText("Copy");
+			copyMenuItem2.setMnemonic('O');
+			popupMenu1.add(copyMenuItem2);
+
+			//---- pasteMenuItem2 ----
+			pasteMenuItem2.setText("Paste");
+			pasteMenuItem2.setMnemonic('P');
+			popupMenu1.add(pasteMenuItem2);
+		}
+		// JFormDesigner - End of component initialization  //GEN-END:initComponents
+	}
+
+	// JFormDesigner - Variables declaration - DO NOT MODIFY  //GEN-BEGIN:variables
+	private JCheckBox alwaysShowMnemonicsCheckBox;
+	private JMenuBar menuBar;
+	// JFormDesigner - End of variables declaration  //GEN-END:variables
+}

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

@@ -0,0 +1,342 @@
+JFDML JFormDesigner: "7.0.1.0.272" Java: "13.0.2" encoding: "UTF-8"
+
+new FormModel {
+	contentType: "form/swing"
+	root: new FormRoot {
+		auxiliary() {
+			"JavaCodeGenerator.defaultVariableLocal": true
+		}
+		add( new FormContainer( "com.formdev.flatlaf.testing.FlatTestPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
+			"$layoutConstraints": "ltr,insets dialog,hidemode 3"
+			"$columnConstraints": "[fill][150,fill]para[grow,fill]"
+			"$rowConstraints": "[][][][][]para[][]para[]"
+		} ) {
+			name: "this"
+			add( new FormComponent( "javax.swing.JLabel" ) {
+				name: "label1"
+				"text": "Name"
+				"labelFor": new FormReference( "textField1" )
+				"displayedMnemonic": 78
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 0,alignx left,growx 0"
+			} )
+			add( new FormComponent( "javax.swing.JTextField" ) {
+				name: "textField1"
+				"componentPopupMenu": &FormReference0 new FormReference( "popupMenu1" )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 0"
+			} )
+			add( new FormComponent( "javax.swing.JLabel" ) {
+				name: "label2"
+				"text": "Phone"
+				"labelFor": new FormReference( "textField2" )
+				"displayedMnemonic": 80
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 1"
+			} )
+			add( new FormComponent( "javax.swing.JTextField" ) {
+				name: "textField2"
+				"componentPopupMenu": #FormReference0
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 1"
+			} )
+			add( new FormComponent( "javax.swing.JLabel" ) {
+				name: "label3"
+				"text": "Planet"
+				"displayedMnemonic": 65
+				"labelFor": new FormReference( "comboBox1" )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 2"
+			} )
+			add( new FormComponent( "javax.swing.JComboBox" ) {
+				name: "comboBox1"
+				"model": new javax.swing.DefaultComboBoxModel {
+					selectedItem: "Earth"
+					addElement( "Earth" )
+					addElement( "Moon" )
+					addElement( "Mars" )
+				}
+				"componentPopupMenu": #FormReference0
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 2"
+			} )
+			add( new FormComponent( "javax.swing.JCheckBox" ) {
+				name: "checkBox1"
+				"text": "Astronaut"
+				"mnemonic": 83
+				"componentPopupMenu": #FormReference0
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 3"
+			} )
+			add( new FormComponent( "javax.swing.JButton" ) {
+				name: "button1"
+				"text": "Lift off"
+				"mnemonic": 76
+				"componentPopupMenu": #FormReference0
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 4,alignx left,growx 0"
+			} )
+			add( new FormComponent( "javax.swing.JLabel" ) {
+				name: "label4"
+				"text": "Text area that consumes Alt key:"
+				"labelFor": new FormReference( "textArea1" )
+				"displayedMnemonic": 84
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 5"
+			} )
+			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
+				name: "scrollPane1"
+				add( new FormComponent( "javax.swing.JTextArea" ) {
+					name: "textArea1"
+					"rows": 4
+					"componentPopupMenu": #FormReference0
+					addEvent( new FormEvent( "java.awt.event.KeyListener", "keyReleased", "textArea1KeyReleased", true ) )
+				} )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 6,grow"
+			} )
+			add( new FormContainer( "javax.swing.JTabbedPane", new FormLayoutManager( class javax.swing.JTabbedPane ) ) {
+				name: "tabbedPane1"
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+					name: "panel1"
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "label7"
+						"text": "Guitar"
+					} )
+				}, new FormLayoutConstraints( null ) {
+					"title": "Guitar"
+					"mnemonic": 71
+				} )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+					name: "panel2"
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "label6"
+						"text": "Drums"
+					} )
+				}, new FormLayoutConstraints( null ) {
+					"title": "Drums"
+					"mnemonic": 68
+				} )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+					name: "panel3"
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "label5"
+						"text": "Keyboard"
+					} )
+				}, new FormLayoutConstraints( null ) {
+					"title": "Keyboard"
+					"mnemonic": 75
+				} )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 2 6,aligny top,growy 0"
+			} )
+			add( new FormComponent( "javax.swing.JCheckBox" ) {
+				name: "alwaysShowMnemonicsCheckBox"
+				"text": "Always show mnemonics"
+				"mnemonic": 77
+				auxiliary() {
+					"JavaCodeGenerator.variableLocal": false
+				}
+				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "alwaysShowMnemonicsChanged", false ) )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 7 2 1,alignx left,growx 0"
+			} )
+		}, new FormLayoutConstraints( null ) {
+			"location": new java.awt.Point( 0, 0 )
+			"size": new java.awt.Dimension( 790, 380 )
+		} )
+		add( new FormContainer( "javax.swing.JMenuBar", new FormLayoutManager( class javax.swing.JMenuBar ) ) {
+			name: "menuBar"
+			auxiliary() {
+				"JavaCodeGenerator.variableLocal": false
+			}
+			add( new FormContainer( "javax.swing.JMenu", new FormLayoutManager( class javax.swing.JMenu ) ) {
+				name: "fileMenu"
+				"text": "File"
+				"mnemonic": 70
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "newMenuItem"
+					"text": "New"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 74, 130, false )
+					"mnemonic": 78
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "openMenuItem"
+					"text": "Open"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 74, 520, false )
+					"mnemonic": 79
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+				add( new FormComponent( "javax.swing.JPopupMenu$Separator" ) {
+					name: "separator2"
+				} )
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "closeMenuItem"
+					"text": "Close"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 74, 650, false )
+					"mnemonic": 67
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "closeMenuItem2"
+					"text": "Close All"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 74, 585, false )
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+				add( new FormComponent( "javax.swing.JPopupMenu$Separator" ) {
+					name: "separator1"
+				} )
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "exitMenuItem"
+					"text": "Exit"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 74, 4811, false )
+					"mnemonic": 88
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+			} )
+			add( new FormContainer( "javax.swing.JMenu", new FormLayoutManager( class javax.swing.JMenu ) ) {
+				name: "editMenu"
+				"text": "Edit"
+				"mnemonic": 69
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "undoMenuItem"
+					"text": "Undo"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 90, 4226, false )
+					"mnemonic": 85
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "redoMenuItem"
+					"text": "Redo"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 89, 4226, false )
+					"mnemonic": 82
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+				add( new FormComponent( "javax.swing.JPopupMenu$Separator" ) {
+					name: "separator4"
+				} )
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "cutMenuItem"
+					"text": "Cut"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 88, 4226, false )
+					"mnemonic": 67
+				} )
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "copyMenuItem"
+					"text": "Copy"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 67, 4226, false )
+					"mnemonic": 79
+				} )
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "pasteMenuItem"
+					"text": "Paste"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 86, 4226, false )
+					"mnemonic": 80
+				} )
+				add( new FormComponent( "javax.swing.JPopupMenu$Separator" ) {
+					name: "separator3"
+				} )
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "deleteMenuItem"
+					"text": "Delete"
+					"accelerator": static javax.swing.KeyStroke getKeyStroke( 127, 0, false )
+					"mnemonic": 68
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+			} )
+			add( new FormContainer( "javax.swing.JMenu", new FormLayoutManager( class javax.swing.JMenu ) ) {
+				name: "viewMenu"
+				"text": "View"
+				"mnemonic": 86
+				add( new FormComponent( "javax.swing.JCheckBoxMenuItem" ) {
+					name: "checkBoxMenuItem1"
+					"text": "Show Toolbar"
+					"selected": true
+					"mnemonic": 84
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+				add( new FormContainer( "javax.swing.JMenu", new FormLayoutManager( class javax.swing.JMenu ) ) {
+					name: "menu1"
+					"text": "Show View"
+					"mnemonic": 86
+					add( new FormContainer( "javax.swing.JMenu", new FormLayoutManager( class javax.swing.JMenu ) ) {
+						name: "subViewsMenu"
+						"text": "Sub Views"
+						"mnemonic": 83
+						add( new FormContainer( "javax.swing.JMenu", new FormLayoutManager( class javax.swing.JMenu ) ) {
+							name: "subSubViewsMenu"
+							"text": "Sub sub Views"
+							"mnemonic": 85
+							add( new FormComponent( "javax.swing.JMenuItem" ) {
+								name: "errorLogViewMenuItem"
+								"text": "Error Log"
+								"mnemonic": 69
+								addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+							} )
+						} )
+						add( new FormComponent( "javax.swing.JMenuItem" ) {
+							name: "searchViewMenuItem"
+							"text": "Search"
+							"mnemonic": 83
+							addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+						} )
+					} )
+					add( new FormComponent( "javax.swing.JMenuItem" ) {
+						name: "projectViewMenuItem"
+						"text": "Project"
+						"mnemonic": 80
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+					} )
+					add( new FormComponent( "javax.swing.JMenuItem" ) {
+						name: "structureViewMenuItem"
+						"text": "Structure"
+						"mnemonic": 84
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+					} )
+					add( new FormComponent( "javax.swing.JMenuItem" ) {
+						name: "propertiesViewMenuItem"
+						"text": "Properties"
+						"mnemonic": 79
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+					} )
+				} )
+			} )
+			add( new FormContainer( "javax.swing.JMenu", new FormLayoutManager( class javax.swing.JMenu ) ) {
+				name: "helpMenu"
+				"text": "Help"
+				"mnemonic": 72
+				add( new FormComponent( "javax.swing.JMenuItem" ) {
+					name: "aboutMenuItem"
+					"text": "About"
+					"mnemonic": 65
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "menuItemActionPerformed", true ) )
+				} )
+			} )
+		}, new FormLayoutConstraints( null ) {
+			"location": new java.awt.Point( 0, 410 )
+			"size": new java.awt.Dimension( 255, 30 )
+		} )
+		add( new FormContainer( "javax.swing.JPopupMenu", new FormLayoutManager( class javax.swing.JPopupMenu ) ) {
+			name: "popupMenu1"
+			add( new FormComponent( "javax.swing.JMenuItem" ) {
+				name: "cutMenuItem2"
+				"text": "Cut"
+				"mnemonic": 67
+			} )
+			add( new FormComponent( "javax.swing.JMenuItem" ) {
+				name: "copyMenuItem2"
+				"text": "Copy"
+				"mnemonic": 79
+			} )
+			add( new FormComponent( "javax.swing.JMenuItem" ) {
+				name: "pasteMenuItem2"
+				"text": "Paste"
+				"mnemonic": 80
+			} )
+		}, new FormLayoutConstraints( null ) {
+			"location": new java.awt.Point( 300, 415 )
+			"size": new java.awt.Dimension( 91, 87 )
+		} )
+	}
+}

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

@@ -23,6 +23,7 @@ import java.awt.event.KeyEvent;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import java.util.function.BiConsumer;
+import java.util.function.Function;
 import java.util.function.Supplier;
 import javax.swing.*;
 import javax.swing.UIManager.LookAndFeelInfo;
@@ -104,7 +105,7 @@ public class FlatTestFrame
 				(SystemInfo.IS_LINUX && className.equals( "com.sun.java.swing.plaf.gtk.GTKLookAndFeel") ) )
 				name += " (F9)";
 			else if( className.equals( MetalLookAndFeel.class.getName() ) )
-				name += " (F10)";
+				name += " (F12)";
 			else if( className.equals( NimbusLookAndFeel.class.getName() ) )
 				name += " (F11)";
 
@@ -114,25 +115,25 @@ public class FlatTestFrame
 		String substanceClassName = "org.pushingpixels.substance.api.skin.SubstanceGraphiteAquaLookAndFeel";
 		if( SystemInfo.IS_JAVA_9_OR_LATER && isClassAvailable( substanceClassName ) ) {
 			lafModel.addElement( new LookAndFeelInfo( "Substance (F5)", substanceClassName ) );
-			registerSwitchToLookAndFeel( KeyEvent.VK_F5, substanceClassName );
+			registerSwitchToLookAndFeel( "F5", substanceClassName );
 		}
 
 		String webLafClassName = "com.alee.laf.WebLookAndFeel";
 		if( isClassAvailable( webLafClassName ) ) {
-			lafModel.addElement( new LookAndFeelInfo( "WebLaf (F12)", webLafClassName ) );
-			registerSwitchToLookAndFeel( KeyEvent.VK_F12, webLafClassName );
+			lafModel.addElement( new LookAndFeelInfo( "WebLaf (Ctrl+F12)", webLafClassName ) );
+			registerSwitchToLookAndFeel( "ctrl F12", webLafClassName );
 		}
 
 		String looksPlasticClassName = "com.jgoodies.looks.plastic.PlasticLookAndFeel";
 		if( isClassAvailable( looksPlasticClassName ) ) {
 			lafModel.addElement( new LookAndFeelInfo( "JGoodies Looks Plastic (F6)", looksPlasticClassName ) );
-			registerSwitchToLookAndFeel( KeyEvent.VK_F6, looksPlasticClassName );
+			registerSwitchToLookAndFeel( "F6", looksPlasticClassName );
 		}
 
 		String looksWindowsClassName = "com.jgoodies.looks.windows.WindowsLookAndFeel";
 		if( SystemInfo.IS_WINDOWS && isClassAvailable( looksWindowsClassName ) ) {
 			lafModel.addElement( new LookAndFeelInfo( "JGoodies Looks Windows (F7)", looksWindowsClassName ) );
-			registerSwitchToLookAndFeel( KeyEvent.VK_F7, looksWindowsClassName );
+			registerSwitchToLookAndFeel( "F7", looksWindowsClassName );
 		}
 
 		lookAndFeelComboBox.setModel( lafModel );
@@ -145,21 +146,21 @@ public class FlatTestFrame
 		updateSizeVariantComboBox();
 
 		// register F1, F2, ... keys to switch to Light, Dark or other LaFs
-		registerSwitchToLookAndFeel( KeyEvent.VK_F1, FlatLightLaf.class.getName() );
-		registerSwitchToLookAndFeel( KeyEvent.VK_F2, FlatDarkLaf.class.getName() );
-		registerSwitchToLookAndFeel( KeyEvent.VK_F3, FlatIntelliJLaf.class.getName() );
-		registerSwitchToLookAndFeel( KeyEvent.VK_F4, FlatDarculaLaf.class.getName() );
+		registerSwitchToLookAndFeel( "F1", FlatLightLaf.class.getName() );
+		registerSwitchToLookAndFeel( "F2", FlatDarkLaf.class.getName() );
+		registerSwitchToLookAndFeel( "F3", FlatIntelliJLaf.class.getName() );
+		registerSwitchToLookAndFeel( "F4", FlatDarculaLaf.class.getName() );
 
-		registerSwitchToLookAndFeel( KeyEvent.VK_F8, FlatTestLaf.class.getName() );
+		registerSwitchToLookAndFeel( "F8", FlatTestLaf.class.getName() );
 
 		if( SystemInfo.IS_WINDOWS )
-			registerSwitchToLookAndFeel( KeyEvent.VK_F9, "com.sun.java.swing.plaf.windows.WindowsLookAndFeel" );
+			registerSwitchToLookAndFeel( "F9", "com.sun.java.swing.plaf.windows.WindowsLookAndFeel" );
 		else if( SystemInfo.IS_MAC )
-			registerSwitchToLookAndFeel( KeyEvent.VK_F9, "com.apple.laf.AquaLookAndFeel" );
+			registerSwitchToLookAndFeel( "F9", "com.apple.laf.AquaLookAndFeel" );
 		else if( SystemInfo.IS_LINUX )
-			registerSwitchToLookAndFeel( KeyEvent.VK_F9, "com.sun.java.swing.plaf.gtk.GTKLookAndFeel" );
-		registerSwitchToLookAndFeel( KeyEvent.VK_F10, MetalLookAndFeel.class.getName() );
-		registerSwitchToLookAndFeel( KeyEvent.VK_F11, NimbusLookAndFeel.class.getName() );
+			registerSwitchToLookAndFeel( "F9", "com.sun.java.swing.plaf.gtk.GTKLookAndFeel" );
+		registerSwitchToLookAndFeel( "F12", MetalLookAndFeel.class.getName() );
+		registerSwitchToLookAndFeel( "F11", NimbusLookAndFeel.class.getName() );
 
 		// register ESC key to close frame
 		((JComponent)getContentPane()).registerKeyboardAction(
@@ -228,12 +229,16 @@ public class FlatTestFrame
 			setTitle( newTitle );
 	}
 
-	private void registerSwitchToLookAndFeel( int keyCode, String lafClassName ) {
+	private void registerSwitchToLookAndFeel( String keyStrokeStr, String lafClassName ) {
+		KeyStroke keyStroke = KeyStroke.getKeyStroke( keyStrokeStr );
+		if( keyStroke == null )
+			throw new IllegalArgumentException( "Invalid key stroke '" + keyStrokeStr + "'" );
+
 		((JComponent)getContentPane()).registerKeyboardAction(
 			e -> {
 				selectLookAndFeel( lafClassName );
 			},
-			KeyStroke.getKeyStroke( keyCode, 0, false ),
+			keyStroke,
 			JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT );
 	}
 
@@ -247,9 +252,16 @@ public class FlatTestFrame
 	}
 
 	public void showFrame( Supplier<JComponent> contentFactory ) {
+		showFrame( contentFactory, null );
+	}
+
+	public void showFrame( Supplier<JComponent> contentFactory, Function<JComponent, JMenuBar> menuBarFactory ) {
 		this.contentFactory = contentFactory;
 		this.content = contentFactory.get();
 
+		if( menuBarFactory != null )
+			setJMenuBar( menuBarFactory.apply( content ) );
+
 		contentPanel.getContentPane().add( content );
 		pack();
 		setLocationRelativeTo( null );