UI defaults: removed unused UI defaults from "base" Metal LaF

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

@@ -208,6 +208,7 @@ public abstract class FlatLaf
 	@Override
 	public UIDefaults getDefaults() {
 		UIDefaults defaults = getBase().getDefaults();
+		UIDefaultsRemover.removeDefaults( defaults );
 
 		// add Metal resource bundle, which is required for FlatFileChooserUI
 		defaults.addResourceBundle( "com.sun.swing.internal.plaf.metal.resources.metal" );

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

@@ -0,0 +1,124 @@
+/*
+ * 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;
+
+import java.util.Iterator;
+import javax.swing.UIDefaults;
+
+/**
+ * Removes UI defaults that are defined in "base" LaF (Metal or Aqua), but not used in FlatLaf.
+ *
+ * This is a temporary class that can be removed when dropping "base" LaF.
+ *
+ * @author Karl Tauber
+ */
+class UIDefaultsRemover
+{
+	static final String[] REMOVE_KEYS = {
+		"AuditoryCues.defaultCueList",
+
+		"Button.disabledToolBarBorderBackground",
+		"Button.focus",
+		"Button.rolloverIconType",
+		"Button.select",
+		"Button.toolBarBorderBackground",
+
+		"CheckBox.focus",
+		"CheckBox.select",
+		"Checkbox.select", // this is a typo in MetalLookAndFeel
+		"CheckBox.totalInsets",
+
+		"DesktopIcon.font",
+		"DesktopIcon.width",
+
+		"InternalFrame.activeTitleGradient",
+		"InternalFrame.optionDialogBorder",
+		"InternalFrame.paletteBorder",
+		"InternalFrame.paletteCloseIcon",
+		"InternalFrame.paletteTitleHeight",
+
+		"Menu.checkIcon",
+
+		"MenuItem.checkIcon",
+
+		"OptionPane.errorDialog.border.background",
+		"OptionPane.errorDialog.titlePane.background",
+		"OptionPane.errorDialog.titlePane.foreground",
+		"OptionPane.errorDialog.titlePane.shadow",
+		"OptionPane.questionDialog.border.background",
+		"OptionPane.questionDialog.titlePane.background",
+		"OptionPane.questionDialog.titlePane.foreground",
+		"OptionPane.questionDialog.titlePane.shadow",
+		"OptionPane.warningDialog.border.background",
+		"OptionPane.warningDialog.titlePane.background",
+		"OptionPane.warningDialog.titlePane.foreground",
+		"OptionPane.warningDialog.titlePane.shadow",
+
+		"RadioButton.focus",
+		"RadioButton.select",
+		"RadioButton.totalInsets",
+
+		"ScrollBar.darkShadow",
+		"ScrollBar.highlight",
+		"ScrollBar.shadow",
+
+		"Slider.altTrackColor",
+		"Slider.focusGradient",
+		"Slider.horizontalThumbIcon",
+		"Slider.majorTickLength",
+		"Slider.verticalThumbIcon",
+
+		"Spinner.arrowButtonBorder",
+		"Spinner.arrowButtonInsets",
+
+		"SplitPane.dividerFocusColor",
+		"SplitPane.oneTouchButtonsOpaque",
+
+		"TabbedPane.borderHightlightColor",
+		"TabbedPane.unselectedBackground",
+		"TabbedPane.tabAreaBackground",
+		"TabbedPane.selectHighlight",
+		"TabbedPane.selected",
+
+		"ToggleButton.focus",
+		"ToggleButton.select",
+
+		"ToolBar.borderColor",
+		"ToolBar.nonrolloverBorder",
+		"ToolBar.rolloverBorder",
+
+		"ToolTip.hideAccelerator",
+
+		"Tree.line",
+	};
+
+	static void removeDefaults( UIDefaults defaults ) {
+		for( String key : REMOVE_KEYS )
+			defaults.remove( key );
+
+		Iterator<Object> itr = defaults.keySet().iterator();
+		while( itr.hasNext() ) {
+			Object key = itr.next();
+			if( key instanceof String &&
+				(((String)key).endsWith( ".gradient" ) ||
+				 ((String)key).endsWith( "Sound" )) )
+			{
+				itr.remove();
+			}
+		}
+	}
+}