release 3.5.1

also check whether EventQueue.push() succeeded; if not, disable submenu safe triangle

CHANGELOG.md

@@ -1,6 +1,23 @@
 FlatLaf Change Log
 ==================
 
+## 3.5.1
+
+#### Fixed bugs
+
+- HTML: Fixed occasional cutoff wrapped text when using multi-line text in HTML
+  tags `<h1>`...`<h6>`, `<code>`, `<kbd>`, `<big>`, `<small>` or `<samp>`.
+  (issue #873; regression in 3.5)
+- Popup: Fixed `UnsupportedOperationException: PERPIXEL_TRANSLUCENT translucency
+  is not supported` exception on Haiku OS when showing popup (partly) outside of
+  window. (issue #869)
+- HiDPI: Fixed occasional wrong repaint areas when using
+  `HiDPIUtils.installHiDPIRepaintManager()`. (see PR #864)
+- Added system property `flatlaf.useSubMenuSafeTriangle` to allow disabling
+  submenu safe triangle (PR #490) for
+  [SWTSwing](https://github.com/Chrriis/SWTSwing). (issue #870)
+
+
 ## 3.5
 
 #### New features and improvements
@@ -16,6 +33,13 @@ FlatLaf Change Log
 
 #### Fixed bugs
 
+- macOS: Disabled rounded popup border (see PR #772) on macOS 14.4+ because it
+  may freeze the application and crash the macOS WindowServer process (reports
+  vary from Finder restarts to OS restarts). This is a temporary change until a
+  solution is found. See NetBeans issues
+  [apache/netbeans#7560](https://github.com/apache/netbeans/issues/7560#issuecomment-2226439215)
+  and
+  [apache/netbeans#6647](https://github.com/apache/netbeans/issues/6647#issuecomment-2070124442).
 - FlatLaf window decorations: Window top border on Windows 10 in "full window
   content" mode was not fully repainted when activating or deactivating window.
   (issue #809)
@@ -70,13 +94,6 @@ FlatLaf Change Log
   (some security software allows loading native library but blocks method
   invocation).
 - macOS: Fixed crash when running in WebSwing. (issue #826; regression in 3.4)
-- macOS: Disabled rounded popup border (see PR #772) on macOS 14.4+ because it
-  may freeze the application and crash the macOS WindowServer process (reports
-  vary from Finder restarts to OS restarts). This is a temporary change until a
-  solution is found. See NetBeans issues
-  [apache/netbeans#7560](https://github.com/apache/netbeans/issues/7560#issuecomment-2226439215)
-  and
-  [apache/netbeans#6647](https://github.com/apache/netbeans/issues/6647#issuecomment-2070124442).
 
 #### Incompatibilities
 

flatlaf-core/flatlaf-core-sigtest.txt

@@ -1,5 +1,5 @@
 #Signature file v4.1
-#Version 3.5
+#Version 3.5.1
 
 CLSS public abstract interface com.formdev.flatlaf.FlatClientProperties
 fld public final static java.lang.String BUTTON_TYPE = "JButton.buttonType"
@@ -296,6 +296,7 @@ fld public final static java.lang.String UPDATE_UI_ON_SYSTEM_FONT_CHANGE = "flat
 fld public final static java.lang.String USE_JETBRAINS_CUSTOM_DECORATIONS = "flatlaf.useJetBrainsCustomDecorations"
  anno 0 java.lang.Deprecated()
 fld public final static java.lang.String USE_NATIVE_LIBRARY = "flatlaf.useNativeLibrary"
+fld public final static java.lang.String USE_SUB_MENU_SAFE_TRIANGLE = "flatlaf.useSubMenuSafeTriangle"
 fld public final static java.lang.String USE_TEXT_Y_CORRECTION = "flatlaf.useTextYCorrection"
 fld public final static java.lang.String USE_UBUNTU_FONT = "flatlaf.useUbuntuFont"
 fld public final static java.lang.String USE_WINDOW_DECORATIONS = "flatlaf.useWindowDecorations"

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

@@ -204,6 +204,15 @@ public interface FlatSystemProperties
 	 */
 	String NATIVE_LIBRARY_PATH = "flatlaf.nativeLibraryPath";
 
+	/**
+	 * Specifies whether safe triangle is used to improve usability of submenus.
+	 * <p>
+	 * <strong>Allowed Values</strong> {@code false} and {@code true}<br>
+	 * <strong>Default</strong> {@code true}
+	 * @since 3.5.1
+	 */
+	String USE_SUB_MENU_SAFE_TRIANGLE = "flatlaf.useSubMenuSafeTriangle";
+
 	/**
 	 * Checks whether a system property is set and returns {@code true} if its value
 	 * is {@code "true"} (case-insensitive), otherwise it returns {@code false}.

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

@@ -45,6 +45,7 @@ import javax.swing.UIManager;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 import com.formdev.flatlaf.ui.FlatUIUtils;
+import com.formdev.flatlaf.util.LoggingFacade;
 
 /**
  * Improves usability of submenus by using a
@@ -64,6 +65,7 @@ class SubMenuUsabilityHelper
 	// https://github.com/apache/netbeans/issues/4231#issuecomment-1179616607
 	private static SubMenuUsabilityHelper instance;
 
+	private boolean eventQueuePushNotSupported;
 	private SubMenuEventQueue subMenuEventQueue;
 	private SafeTrianglePainter safeTrianglePainter;
 	private boolean changePending;
@@ -83,6 +85,9 @@ class SubMenuUsabilityHelper
 		if( instance != null )
 			return false;
 
+		if( !FlatSystemProperties.getBoolean( FlatSystemProperties.USE_SUB_MENU_SAFE_TRIANGLE, true ) )
+			return false;
+
 		instance = new SubMenuUsabilityHelper();
 		MenuSelectionManager.defaultManager().addChangeListener( instance );
 		return true;
@@ -99,7 +104,7 @@ class SubMenuUsabilityHelper
 
 	@Override
 	public void stateChanged( ChangeEvent e ) {
-		if( !FlatUIUtils.getUIBoolean( KEY_USE_SAFE_TRIANGLE, true ))
+		if( eventQueuePushNotSupported || !FlatUIUtils.getUIBoolean( KEY_USE_SAFE_TRIANGLE, true ))
 			return;
 
 		// handle menu selection change later, but only once in case of temporary changes
@@ -173,8 +178,29 @@ debug*/
 		targetBottomY = popupLocation.y + popupSize.height;
 
 		// install own event queue to suppress mouse events when mouse is moved within safe triangle
-		if( subMenuEventQueue == null )
+		if( subMenuEventQueue == null ) {
-			subMenuEventQueue = new SubMenuEventQueue();
+			SubMenuEventQueue queue = new SubMenuEventQueue();
+
+			try {
+				Toolkit toolkit = Toolkit.getDefaultToolkit();
+				toolkit.getSystemEventQueue().push( queue );
+
+				// check whether push() worked
+				// (e.g. SWTSwing uses own event queue that does not support push())
+				if( toolkit.getSystemEventQueue() != queue ) {
+					eventQueuePushNotSupported = true;
+					LoggingFacade.INSTANCE.logSevere( "FlatLaf: Failed to push submenu event queue. Disabling submenu safe triangle.", null );
+					return;
+				}
+
+				subMenuEventQueue = queue;
+			} catch( RuntimeException ex ) {
+				// catch runtime exception from EventQueue.push()
+				eventQueuePushNotSupported = true;
+				LoggingFacade.INSTANCE.logSevere( "FlatLaf: Failed to push submenu event queue. Disabling submenu safe triangle.", ex );
+				return;
+			}
+		}
 
 		// create safe triangle painter
 		if( safeTrianglePainter == null && UIManager.getBoolean( KEY_SHOW_SAFE_TRIANGLE ) )
@@ -247,8 +273,6 @@ debug*/
 				}
 			} );
 			timeoutTimer.setRepeats( false );
-
-			Toolkit.getDefaultToolkit().getSystemEventQueue().push( this );
 		}
 
 		void uninstall() {

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

@@ -19,13 +19,22 @@ package com.formdev.flatlaf.ui;
 import java.awt.Color;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Locale;
+import java.util.Set;
+import javax.swing.AbstractButton;
 import javax.swing.JComponent;
+import javax.swing.JLabel;
+import javax.swing.JToolTip;
 import javax.swing.plaf.basic.BasicHTML;
+import javax.swing.text.AttributeSet;
 import javax.swing.text.Document;
 import javax.swing.text.LabelView;
 import javax.swing.text.Style;
 import javax.swing.text.StyleConstants;
 import javax.swing.text.View;
+import javax.swing.text.html.CSS;
 import javax.swing.text.html.HTMLDocument;
 import javax.swing.text.html.StyleSheet;
 
@@ -42,7 +51,7 @@ public class FlatHTML
 	 * which re-calculates font sizes based on current component font size.
 	 * This is necessary for "absolute-size" keywords (e.g. "x-large")
 	 * for "font-size" attributes in default style sheet (see javax/swing/text/html/default.css).
-	 * See also <a href="https://developer.mozilla.org/en-US/docs/Web/CSS/font-size?retiredLocale=de#values">CSS font-size</a>.
+	 * See also <a href="https://developer.mozilla.org/en-US/docs/Web/CSS/font-size#values">CSS font-size</a>.
 	 * <p>
 	 * This method should be invoked after {@link BasicHTML#updateRenderer(JComponent, String)}.
 	 */
@@ -61,16 +70,86 @@ public class FlatHTML
 		//  - if point size at index 7 is not 36, then probably HTML text contains BASE_SIZE rule
 		//  - if point size at index 4 is equal to given font size, then it is not necessary to add BASE_SIZE rule
 		StyleSheet styleSheet = ((HTMLDocument)doc).getStyleSheet();
+/*debug
+		for( int i = 1; i <= 7; i++ )
+			System.out.println( i+": "+ styleSheet.getPointSize( i ) );
+debug*/
 		int fontBaseSize = c.getFont().getSize();
 		if( styleSheet.getPointSize( 7 ) != 36f ||
 			styleSheet.getPointSize( 4 ) == fontBaseSize )
 		  return;
 
-		// BASE_SIZE rule is parsed in javax.swing.text.html.StyleSheet.addRule()
+		// check whether view uses "absolute-size" keywords (e.g. "x-large") for font-size
-		styleSheet.addRule( "BASE_SIZE " + fontBaseSize );
+		if( !usesAbsoluteSizeKeywordForFontSize( view ) )
-		clearViewCaches( view );
+			return;
 
-//		dumpViews( view, 0 );
+		// get HTML text from component
+		String text;
+		if( c instanceof JLabel )
+			text = ((JLabel)c).getText();
+		else if( c instanceof AbstractButton )
+			text = ((AbstractButton)c).getText();
+		else if( c instanceof JToolTip )
+			text = ((JToolTip)c).getTipText();
+		else
+			return;
+		if( text == null )
+			return;
+
+		// BASE_SIZE rule is parsed in javax.swing.text.html.StyleSheet.addRule()
+		String style = "<style>BASE_SIZE " + c.getFont().getSize() + "</style>";
+		String openTag = "";
+		String closeTag = "";
+
+		String lowerText = text.toLowerCase( Locale.ENGLISH );
+		int headIndex;
+		int styleIndex;
+
+		int insertIndex;
+		if( (headIndex = lowerText.indexOf( "<head>" )) >= 0 ) {
+			// there is a <head> tag --> insert after <head> tag
+			insertIndex = headIndex + "<head>".length();
+		} else if( (styleIndex = lowerText.indexOf( "<style>" )) >= 0 ) {
+			// there is a <style> tag --> insert before <style> tag
+			insertIndex = styleIndex;
+		} else {
+			// no <head> or <style> tag --> insert <head> tag after <html> tag
+			insertIndex = "<html>".length();
+			openTag = "<head>";
+			closeTag = "</head>";
+		}
+
+		String newText = text.substring( 0, insertIndex )
+			+ openTag + style + closeTag
+			+ text.substring( insertIndex );
+
+		BasicHTML.updateRenderer( c, newText );
+	}
+
+	private static final Set<String> absoluteSizeKeywordsSet = new HashSet<>( Arrays.asList(
+		"xx-small", "x-small", "small", "medium", "large", "x-large", "xx-large" ) );
+
+	/**
+	 * Checks whether view uses "absolute-size" keywords (e.g. "x-large") for font-size
+	 * (see javax/swing/text/html/default.css).
+	 */
+	private static boolean usesAbsoluteSizeKeywordForFontSize( View view ) {
+		AttributeSet attributes = view.getAttributes();
+		if( attributes != null ) {
+			Object fontSize = attributes.getAttribute( CSS.Attribute.FONT_SIZE );
+			if( fontSize != null ) {
+				if( absoluteSizeKeywordsSet.contains( fontSize.toString() ) )
+					return true;
+			}
+		}
+
+		int viewCount = view.getViewCount();
+		for( int i = 0; i < viewCount; i++ ) {
+			if( usesAbsoluteSizeKeywordForFontSize( view.getView( i ) ) )
+				return true;
+		}
+
+		return false;
 	}
 
 	/**
@@ -128,8 +207,8 @@ public class FlatHTML
 	 * updates the HTML view.
 	 */
 	public static void propertyChange( PropertyChangeEvent e ) {
-		if( BasicHTML.propertyKey.equals( e.getPropertyName() ) )
+		if( BasicHTML.propertyKey.equals( e.getPropertyName() ) && e.getNewValue() instanceof View )
-			FlatHTML.updateRendererCSSFontBaseSize( (JComponent) e.getSource() );
+			updateRendererCSSFontBaseSize( (JComponent) e.getSource() );
 	}
 
 /*debug
@@ -142,15 +221,27 @@ public class FlatHTML
 	public static void dumpViews( View view, int indent ) {
 		for( int i = 0; i < indent; i++ )
 			System.out.print( "    " );
-		System.out.print( view.getClass().isAnonymousClass() ? view.getClass().getName() : view.getClass().getSimpleName() );
+
-		if( view instanceof LabelView ) {
+		System.out.printf( "%s @%-8x   %3d,%2d",
-			LabelView lview = ((LabelView)view);
+			view.getClass().isAnonymousClass() ? view.getClass().getName() : view.getClass().getSimpleName(),
-			Font font = lview.getFont();
+			System.identityHashCode( view ),
-			Color foreground = lview.getForeground();
+			(int) view.getPreferredSpan( View.X_AXIS ),
-			System.out.printf( "  %2d-%-2d  %-14s %d  #%06x",
+			(int) view.getPreferredSpan( View.Y_AXIS ) );
-				lview.getStartOffset(), lview.getEndOffset() - 1,
+
-				font.getName(), font.getSize(),
+		AttributeSet attrs = view.getAttributes();
-				foreground.getRGB() & 0xffffff );
+		if( attrs != null ) {
+			Object fontSize = attrs.getAttribute( CSS.Attribute.FONT_SIZE );
+			System.out.printf( "  %-8s", fontSize );
+		}
+
+		if( view instanceof javax.swing.text.GlyphView ) {
+			javax.swing.text.GlyphView gview = ((javax.swing.text.GlyphView)view);
+			java.awt.Font font = gview.getFont();
+			System.out.printf( "   %3d-%-3d  %s %2d (@%x)  #%06x  '%s'",
+				gview.getStartOffset(), gview.getEndOffset() - 1,
+				font.getName(), font.getSize(), System.identityHashCode( font ),
+				gview.getForeground().getRGB() & 0xffffff,
+				gview.getText( gview.getStartOffset(), gview.getEndOffset() ) );
 		}
 		System.out.println();
 

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

@@ -139,7 +139,10 @@ public class FlatPopupFactory
 			forceHeavyWeight = true;
 
 		// create drop shadow popup
-		return new DropShadowPopup( getPopupForScreenOfOwner( owner, contents, x, y, forceHeavyWeight ), owner, contents );
+		Popup popupForScreenOfOwner = getPopupForScreenOfOwner( owner, contents, x, y, forceHeavyWeight );
+		return owner.getGraphicsConfiguration().isTranslucencyCapable()
+			? new DropShadowPopup( popupForScreenOfOwner, owner, contents )
+			: new NonFlashingPopup( popupForScreenOfOwner, owner, contents );
 	}
 
 	/**

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

@@ -1685,7 +1685,7 @@ debug*/
 			w - (ci.left / 100f) - (ci.right / 100f), h - (ci.top / 100f) - (ci.bottom / 100f) ), false );
 
 		// add gap for selected tab to path
-		if( getTabType() == TAB_TYPE_CARD ) {
+		if( getTabType() == TAB_TYPE_CARD && selectedIndex >= 0 ) {
 			float csh = scale( (float) contentSeparatorHeight );
 
 			Rectangle tabRect = getTabBounds( tabPane, selectedIndex );

flatlaf-core/src/main/java/com/formdev/flatlaf/util/HiDPIUtils.java

@@ -521,12 +521,12 @@ public class HiDPIUtils
 			int x2 = x + c.getX();
 			int y2 = y + c.getY();
 			for( Component p = c.getParent(); p != null; p = p.getParent() ) {
-				x2 += p.getX();
-				y2 += p.getY();
 				if( x2 + width < p.getWidth() && y2 + height < p.getHeight() && p instanceof JComponent ) {
 					callback.addDirtyRegion( (JComponent) p, x2, y2, width, height );
 					return;
 				}
+				x2 += p.getX();
+				y2 += p.getY();
 			}
 		}
 

gradle.properties

@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 
-flatlaf.releaseVersion     = 3.5
+flatlaf.releaseVersion     = 3.5.1
 flatlaf.developmentVersion = 3.6-SNAPSHOT
 
 org.gradle.parallel = true