Styling: support Spinner

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

@@ -351,14 +351,15 @@ class UIDefaultsLoader
 				valueType = ValueType.STRING;
 			else if( key.endsWith( "Color" ) ||
 				(key.endsWith( "ground" ) &&
-				 (key.endsWith( ".background" ) || key.endsWith( "Background" ) ||
-				  key.endsWith( ".foreground" ) || key.endsWith( "Foreground" ))) )
+				 (key.endsWith( ".background" ) || key.endsWith( "Background" ) || key.equals( "background" ) ||
+				  key.endsWith( ".foreground" ) || key.endsWith( "Foreground" ) || key.equals( "foreground" ))) )
 				valueType = ValueType.COLOR;
 			else if( key.endsWith( ".border" ) || key.endsWith( "Border" ) )
 				valueType = ValueType.BORDER;
 			else if( key.endsWith( ".icon" ) || key.endsWith( "Icon" ) )
 				valueType = ValueType.ICON;
-			else if( key.endsWith( ".margin" ) || key.endsWith( ".padding" ) ||
+			else if( key.endsWith( ".margin" ) || key.equals( "margin" ) ||
+					 key.endsWith( ".padding" ) || key.equals( "padding" ) ||
 					 key.endsWith( "Margins" ) || key.endsWith( "Insets" ) )
 				valueType = ValueType.INSETS;
 			else if( key.endsWith( "Size" ) )

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

@@ -32,6 +32,7 @@ import java.awt.event.FocusListener;
 import java.awt.geom.Rectangle2D;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
+import java.util.Map;
 import javax.swing.JComponent;
 import javax.swing.JSpinner;
 import javax.swing.JTextField;
@@ -42,6 +43,7 @@ import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.UIResource;
 import javax.swing.plaf.basic.BasicSpinnerUI;
 import com.formdev.flatlaf.FlatClientProperties;
+import com.formdev.flatlaf.ui.FlatStyleSupport.Styleable;
 
 /**
  * Provides the Flat LaF UI delegate for {@link javax.swing.JSpinner}.
@@ -81,26 +83,35 @@ public class FlatSpinnerUI
 {
 	private Handler handler;
 
-	protected int minimumWidth;
-	protected String buttonStyle;
-	protected String arrowType;
+	@Styleable protected int minimumWidth;
+	@Styleable protected String buttonStyle;
+	@Styleable protected String arrowType;
 	protected boolean isIntelliJTheme;
-	protected Color borderColor;
-	protected Color disabledBorderColor;
-	protected Color disabledBackground;
-	protected Color disabledForeground;
-	protected Color focusedBackground;
-	protected Color buttonBackground;
-	protected Color buttonArrowColor;
-	protected Color buttonDisabledArrowColor;
-	protected Color buttonHoverArrowColor;
-	protected Color buttonPressedArrowColor;
-	protected Insets padding;
+	@Styleable protected Color borderColor;
+	@Styleable protected Color disabledBorderColor;
+	@Styleable protected Color disabledBackground;
+	@Styleable protected Color disabledForeground;
+	@Styleable protected Color focusedBackground;
+	@Styleable protected Color buttonBackground;
+	@Styleable protected Color buttonArrowColor;
+	@Styleable protected Color buttonDisabledArrowColor;
+	@Styleable protected Color buttonHoverArrowColor;
+	@Styleable protected Color buttonPressedArrowColor;
+	@Styleable protected Insets padding;
+
+	private Map<String, Object> oldStyleValues;
 
 	public static ComponentUI createUI( JComponent c ) {
 		return new FlatSpinnerUI();
 	}
 
+	@Override
+	public void installUI( JComponent c ) {
+		super.installUI( c );
+
+		applyStyle( FlatStyleSupport.getStyle( spinner ) );
+	}
+
 	@Override
 	protected void installDefaults() {
 		super.installDefaults();
@@ -123,9 +134,6 @@ public class FlatSpinnerUI
 		buttonPressedArrowColor = UIManager.getColor( "Spinner.buttonPressedArrowColor" );
 		padding = UIManager.getInsets( "Spinner.padding" );
 
-		// scale
-		padding = scale( padding );
-
 		MigLayoutVisualPadding.install( spinner );
 	}
 
@@ -145,6 +153,8 @@ public class FlatSpinnerUI
 		buttonPressedArrowColor = null;
 		padding = null;
 
+		oldStyleValues = null;
+
 		MigLayoutVisualPadding.uninstall( spinner );
 	}
 
@@ -174,6 +184,21 @@ public class FlatSpinnerUI
 		return handler;
 	}
 
+	/**
+	 * @since TODO
+	 */
+	protected void applyStyle( Object style ) {
+		oldStyleValues = FlatStyleSupport.parseAndApply( oldStyleValues, style, this::applyStyleProperty );
+		updateArrowButtons();
+	}
+
+	/**
+	 * @since TODO
+	 */
+	protected Object applyStyleProperty( String key, Object value ) {
+		return FlatStyleSupport.applyToAnnotatedObject( this, key, value );
+	}
+
 	@Override
 	protected JComponent createEditor() {
 		JComponent editor = super.createEditor();
@@ -284,6 +309,15 @@ public class FlatSpinnerUI
 		return button;
 	}
 
+	private void updateArrowButtons() {
+		for( Component c : spinner.getComponents() ) {
+			if( c instanceof FlatArrowButton ) {
+				((FlatArrowButton)c).update( arrowType, buttonArrowColor,
+					buttonDisabledArrowColor, buttonHoverArrowColor, null, buttonPressedArrowColor, null );
+			}
+		}
+	}
+
 	@Override
 	public void update( Graphics g, JComponent c ) {
 		float focusWidth = FlatUIUtils.getBorderFocusWidth( c );
@@ -370,6 +404,7 @@ public class FlatSpinnerUI
 		@Override
 		public Dimension preferredLayoutSize( Container parent ) {
 			Insets insets = parent.getInsets();
+			Insets padding = scale( FlatSpinnerUI.this.padding );
 			Dimension editorSize = (editor != null) ? editor.getPreferredSize() : new Dimension( 0, 0 );
 
 			// the arrows width is the same as the inner height so that the arrows area is square
@@ -390,6 +425,7 @@ public class FlatSpinnerUI
 		public void layoutContainer( Container parent ) {
 			Dimension size = parent.getSize();
 			Insets insets = parent.getInsets();
+			Insets padding = scale( FlatSpinnerUI.this.padding );
 			Rectangle r = FlatUIUtils.subtractInsets( new Rectangle( size ), insets );
 
 			if( nextButton == null && previousButton == null ) {
@@ -465,6 +501,12 @@ public class FlatSpinnerUI
 				case FlatClientProperties.MINIMUM_WIDTH:
 					spinner.revalidate();
 					break;
+
+				case FlatClientProperties.STYLE:
+					applyStyle( e.getNewValue() );
+					spinner.revalidate();
+					spinner.repaint();
+					break;
 			}
 		}
 	}

flatlaf-core/src/test/java/com/formdev/flatlaf/ui/FlatStylingTests.java

@@ -389,6 +389,29 @@ public class FlatStylingTests
 		ui.applyStyle( "tickColor: #fff" );
 	}
 
+	@Test
+	void spinner() {
+		FlatSpinnerUI ui = new FlatSpinnerUI();
+
+		// create arrow buttons
+		ui.installUI( new JSpinner() );
+
+		ui.applyStyle( "minimumWidth: 100" );
+		ui.applyStyle( "buttonStyle: button" );
+		ui.applyStyle( "arrowType: chevron" );
+		ui.applyStyle( "borderColor: #fff" );
+		ui.applyStyle( "disabledBorderColor: #fff" );
+		ui.applyStyle( "disabledBackground: #fff" );
+		ui.applyStyle( "disabledForeground: #fff" );
+		ui.applyStyle( "focusedBackground: #fff" );
+		ui.applyStyle( "buttonBackground: #fff" );
+		ui.applyStyle( "buttonArrowColor: #fff" );
+		ui.applyStyle( "buttonDisabledArrowColor: #fff" );
+		ui.applyStyle( "buttonHoverArrowColor: #fff" );
+		ui.applyStyle( "buttonPressedArrowColor: #fff" );
+		ui.applyStyle( "padding: 1,2,3,4" );
+	}
+
 	@Test
 	void splitPane() {
 		FlatSplitPaneUI ui = new FlatSplitPaneUI();