Window decorations: added UI value TitlePane.font to customize window title font (issue #589)

CHANGELOG.md

@@ -21,6 +21,7 @@ FlatLaf Change Log
     (allow moving window). (issue #569)
   - Option to show window icon only in frames, but not in dialogs. Set UI value
     `TitlePane.showIconInDialogs` to `false`. (issue #589)
+  - Added UI value `TitlePane.font` to customize window title font. (issue #589)
 - Added system property `flatlaf.updateUIOnSystemFontChange` to allow disabling
   automatic UI update when system font changes. (issue #580)
 

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

@@ -581,6 +581,7 @@ public abstract class FlatLaf
 
 		// add fonts that are not set in BasicLookAndFeel
 		defaults.put( "RootPane.font", activeFont );
+		defaults.put( "TitlePane.font", activeFont );
 	}
 
 	private void initDefaultFont( UIDefaults defaults ) {

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

@@ -24,6 +24,7 @@ import java.awt.Container;
 import java.awt.Dialog;
 import java.awt.Dimension;
 import java.awt.EventQueue;
+import java.awt.Font;
 import java.awt.FontMetrics;
 import java.awt.Frame;
 import java.awt.Graphics;
@@ -73,6 +74,7 @@ import com.formdev.flatlaf.util.UIScale;
 /**
  * Provides the Flat LaF title bar.
  *
+ * @uiDefault TitlePane.font								Font
  * @uiDefault TitlePane.background							Color
  * @uiDefault TitlePane.inactiveBackground					Color
  * @uiDefault TitlePane.foreground							Color
@@ -105,6 +107,7 @@ import com.formdev.flatlaf.util.UIScale;
 public class FlatTitlePane
 	extends JComponent
 {
+	/** @since 2.5 */ protected final Font titleFont = UIManager.getFont( "TitlePane.font" );
 	protected final Color activeBackground = UIManager.getColor( "TitlePane.background" );
 	protected final Color inactiveBackground = UIManager.getColor( "TitlePane.inactiveBackground" );
 	protected final Color activeForeground = UIManager.getColor( "TitlePane.foreground" );
@@ -1012,6 +1015,14 @@ debug*/
 			super( false );
 		}
 
+		@Override
+		protected void installDefaults( JLabel c ) {
+			super.installDefaults( c );
+
+			if( titleFont != null )
+				c.setFont( titleFont );
+		}
+
 		@Override
 		protected String layoutCL( JLabel label, FontMetrics fontMetrics, String text, Icon icon,
 			Rectangle viewR, Rectangle iconR, Rectangle textR )

flatlaf-testing/dumps/uidefaults/FlatDarkLaf_1.8.0.txt

@@ -1226,6 +1226,7 @@ TitlePane.closeIcon            [lazy] 44,30    com.formdev.flatlaf.icons.FlatWin
 TitlePane.closePressedBackground #c42b1ce6  90%  HSLA   5  75  44 90    javax.swing.plaf.ColorUIResource [UI]
 TitlePane.closePressedForeground #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
 TitlePane.embeddedForeground   #959595  HSL   0   0  58    javax.swing.plaf.ColorUIResource [UI]
+TitlePane.font                 [active] $defaultFont [UI]
 TitlePane.foreground           #bbbbbb  HSL   0   0  73    javax.swing.plaf.ColorUIResource [UI]
 TitlePane.icon                 [lazy] 16,16    sun.swing.ImageIconUIResource [UI]  (sun.awt.image.ToolkitImage)
 TitlePane.iconMargins          3,8,3,8    javax.swing.plaf.InsetsUIResource [UI]

flatlaf-testing/dumps/uidefaults/FlatLightLaf_1.8.0.txt

@@ -1231,6 +1231,7 @@ TitlePane.closeIcon            [lazy] 44,30    com.formdev.flatlaf.icons.FlatWin
 TitlePane.closePressedBackground #c42b1ce6  90%  HSLA   5  75  44 90    javax.swing.plaf.ColorUIResource [UI]
 TitlePane.closePressedForeground #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
 TitlePane.embeddedForeground   #595959  HSL   0   0  35    javax.swing.plaf.ColorUIResource [UI]
+TitlePane.font                 [active] $defaultFont [UI]
 TitlePane.foreground           #000000  HSL   0   0   0    javax.swing.plaf.ColorUIResource [UI]
 TitlePane.icon                 [lazy] 16,16    sun.swing.ImageIconUIResource [UI]  (sun.awt.image.ToolkitImage)
 TitlePane.iconMargins          3,8,3,8    javax.swing.plaf.InsetsUIResource [UI]

flatlaf-testing/dumps/uidefaults/FlatTestLaf_1.8.0.txt

@@ -1259,6 +1259,7 @@ TitlePane.closeHoverForeground #ffffff  HSL   0   0 100    javax.swing.plaf.Colo
 TitlePane.closeIcon            [lazy] 44,30    com.formdev.flatlaf.icons.FlatWindowCloseIcon [UI]
 TitlePane.closePressedBackground #c42b1ce6  90%  HSLA   5  75  44 90    javax.swing.plaf.ColorUIResource [UI]
 TitlePane.closePressedForeground #ffffff  HSL   0   0 100    javax.swing.plaf.ColorUIResource [UI]
+TitlePane.font                 [active] $defaultFont [UI]
 TitlePane.foreground           #0000ff  HSL 240 100  50    javax.swing.plaf.ColorUIResource [UI]
 TitlePane.icon                 [lazy] 16,16    sun.swing.ImageIconUIResource [UI]  (sun.awt.image.ToolkitImage)
 TitlePane.iconMargins          3,8,3,8    javax.swing.plaf.InsetsUIResource [UI]

flatlaf-theme-editor/src/main/resources/com/formdev/flatlaf/themeeditor/FlatLafUIKeys.txt

@@ -996,6 +996,7 @@ TitlePane.closeIcon
 TitlePane.closePressedBackground
 TitlePane.closePressedForeground
 TitlePane.embeddedForeground
+TitlePane.font
 TitlePane.foreground
 TitlePane.icon
 TitlePane.iconMargins