Button and ToggleButton: paint disabled background by default (issue #112)

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

@@ -284,6 +284,7 @@ public abstract class FlatLaf
 		// initialize some defaults (for overriding) that are used in UI delegates,
 		// but are not set in BasicLookAndFeel
 		putDefaults( defaults, defaults.getColor( "control" ),
+			"Button.disabledBackground",
 			"EditorPane.disabledBackground",
 			"EditorPane.inactiveBackground",
 			"FormattedTextField.disabledBackground",
@@ -293,7 +294,8 @@ public abstract class FlatLaf
 			"TextArea.inactiveBackground",
 			"TextField.disabledBackground",
 			"TextPane.disabledBackground",
-			"TextPane.inactiveBackground" );
+			"TextPane.inactiveBackground",
+			"ToggleButton.disabledBackground" );
 		putDefaults( defaults, defaults.getColor( "textInactiveText" ),
 			"Button.disabledText",
 			"CheckBox.disabledText",

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

@@ -147,6 +147,11 @@ public class IntelliJTheme
 		applyColorPalette( defaults );
 		applyCheckBoxColors( defaults );
 
+		// IDEA does not paint button background if disabled, but FlatLaf does
+		Object panelBackground = defaults.get( "Panel.background" );
+		defaults.put( "Button.disabledBackground", panelBackground );
+		defaults.put( "ToggleButton.disabledBackground", panelBackground );
+
 		// IDEA uses a SVG icon for the help button, but paints the background with Button.startBackground and Button.endBackground
 		Object helpButtonBackground = defaults.get( "Button.startBackground" );
 		Object helpButtonBorderColor = defaults.get( "Button.startBorderColor" );
@@ -156,7 +161,7 @@ public class IntelliJTheme
 			helpButtonBorderColor = defaults.get( "Button.borderColor" );
 		defaults.put( "HelpButton.background", helpButtonBackground );
 		defaults.put( "HelpButton.borderColor", helpButtonBorderColor );
-		defaults.put( "HelpButton.disabledBackground", defaults.get( "Panel.background" ) );
+		defaults.put( "HelpButton.disabledBackground", panelBackground );
 		defaults.put( "HelpButton.disabledBorderColor", defaults.get( "Button.disabledBorderColor" ) );
 		defaults.put( "HelpButton.focusedBorderColor", defaults.get( "Button.focusedBorderColor" ) );
 		defaults.put( "HelpButton.focusedBackground", defaults.get( "Button.focusedBackground" ) );

flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/uidefaults/FlatDarkLaf_1.8.0_202.txt

@@ -77,6 +77,7 @@ Button.default.hoverBackground #3b5f8b    com.formdev.flatlaf.util.DerivedColor
 Button.default.hoverBorderColor #537699    javax.swing.plaf.ColorUIResource [UI]
 Button.default.pressedBackground #3f6796    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(6% autoInverse)
 Button.defaultButtonFollowsFocus true
+Button.disabledBackground      #3c3f41    javax.swing.plaf.ColorUIResource [UI]
 Button.disabledBorderColor     #5e6060    javax.swing.plaf.ColorUIResource [UI]
 Button.disabledText            #777777    javax.swing.plaf.ColorUIResource [UI]
 Button.focusedBorderColor      #466d94    javax.swing.plaf.ColorUIResource [UI]
@@ -1059,6 +1060,7 @@ TitledPanelUI                  com.formdev.flatlaf.swingx.ui.FlatTitledPanelUI
 ToggleButton.background        #4c5052    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.border            [lazy] 1,1,1,1  false    com.formdev.flatlaf.ui.FlatButtonBorder [UI]
 ToggleButton.darkShadow        #7e7e7e    javax.swing.plaf.ColorUIResource [UI]
+ToggleButton.disabledBackground #3c3f41    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.disabledSelectedBackground #53585a    com.formdev.flatlaf.util.DerivedColor [UI]    lighten(3% autoInverse)
 ToggleButton.disabledText      #777777    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.font              [active] $defaultFont [UI]

flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/uidefaults/FlatLightLaf_1.8.0_202.txt

@@ -77,6 +77,7 @@ Button.default.hoverBackground #f7f7f7    com.formdev.flatlaf.util.DerivedColor
 Button.default.hoverBorderColor #87afda    javax.swing.plaf.ColorUIResource [UI]
 Button.default.pressedBackground #e6e6e6    com.formdev.flatlaf.util.DerivedColor [UI]    darken(10% autoInverse)
 Button.defaultButtonFollowsFocus true
+Button.disabledBackground      #f2f2f2    javax.swing.plaf.ColorUIResource [UI]
 Button.disabledBorderColor     #cfcfcf    javax.swing.plaf.ColorUIResource [UI]
 Button.disabledText            #8c8c8c    javax.swing.plaf.ColorUIResource [UI]
 Button.focusedBackground       #e3f1fa    javax.swing.plaf.ColorUIResource [UI]
@@ -1061,6 +1062,7 @@ TitledPanelUI                  com.formdev.flatlaf.swingx.ui.FlatTitledPanelUI
 ToggleButton.background        #ffffff    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.border            [lazy] 1,1,1,1  false    com.formdev.flatlaf.ui.FlatButtonBorder [UI]
 ToggleButton.darkShadow        #9e9e9e    javax.swing.plaf.ColorUIResource [UI]
+ToggleButton.disabledBackground #f2f2f2    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.disabledSelectedBackground #dedede    com.formdev.flatlaf.util.DerivedColor [UI]    darken(13% autoInverse)
 ToggleButton.disabledText      #8c8c8c    javax.swing.plaf.ColorUIResource [UI]
 ToggleButton.font              [active] $defaultFont [UI]