ComboBox basic implementation

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

@@ -64,12 +64,8 @@ public class FlatBorder
 	}
 
 	protected Paint getBorderColor( Component c ) {
-		boolean editable = !(c instanceof JTextComponent) || ((JTextComponent)c).isEditable();
+		boolean enabled = c.isEnabled() && (!(c instanceof JTextComponent) || ((JTextComponent)c).isEditable());
-		return UIManager.getColor( c.isEnabled() && editable
+		return FlatUIUtils.getBorderColor( enabled, isFocused( c ) );
-			? (isFocused( c )
-				? "Component.focusedBorderColor"
-				: "Component.borderColor")
-			: "Component.disabledBorderColor" );
 	}
 
 	protected boolean isFocused( Component c ) {

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

@@ -0,0 +1,124 @@
+/*
+ * Copyright 2019 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
+ *
+ *     http://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.ui;
+
+import static com.formdev.flatlaf.util.UIScale.scale;
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Shape;
+import java.awt.geom.Path2D;
+import java.awt.geom.Rectangle2D;
+import javax.swing.JButton;
+import javax.swing.JComponent;
+import javax.swing.UIManager;
+import javax.swing.plaf.ComponentUI;
+import javax.swing.plaf.basic.BasicArrowButton;
+import javax.swing.plaf.basic.BasicComboBoxUI;
+
+/**
+ * Provides the Flat LaF UI delegate for {@link javax.swing.JComboBox}.
+ *
+ * @author Karl Tauber
+ */
+public class FlatComboBoxUI
+	extends BasicComboBoxUI
+{
+	public static ComponentUI createUI( JComponent c ) {
+		return new FlatComboBoxUI();
+	}
+
+	@Override
+	protected JButton createArrowButton() {
+		return new FlatArrowButton();
+	}
+
+	@Override
+	public void update( Graphics g, JComponent c ) {
+		if( c.isOpaque() ) {
+			FlatUIUtils.paintParentBackground( g, c );
+
+			if( c.isEnabled() || comboBox.isEditable() ) {
+				Graphics2D g2 = (Graphics2D) g;
+				FlatUIUtils.setRenderingHints( g2 );
+
+				int width = c.getWidth();
+				int height = c.getHeight();
+				float focusWidth = FlatUIUtils.getFocusWidth();
+				float arc = FlatUIUtils.getComponentArc();
+				int arrowX = arrowButton.getX();
+
+				if( c.isEnabled() ) {
+					// paint background
+					g2.setColor( c.getBackground() );
+					FlatUIUtils.fillRoundRectangle( g2, 0, 0, width, height, focusWidth, arc );
+
+					// paint arrow button background
+					g2.setColor( UIManager.getColor( comboBox.isEditable()
+						? "ComboBox.buttonEditableBackground"
+						: "ComboBox.buttonBackground" ) );
+					Shape oldClip = g2.getClip();
+					g2.clipRect( arrowX, 0, width - arrowX, height );
+					FlatUIUtils.fillRoundRectangle( g2, 0, 0, width, height, focusWidth, arc );
+					g2.setClip( oldClip );
+				}
+
+				if( comboBox.isEditable() ) {
+					// paint vertical line between value and arrow button
+					g2.setColor( FlatUIUtils.getBorderColor( comboBox.isEnabled(), false ) );
+					g2.fill( new Rectangle2D.Float( arrowX, focusWidth, scale( 1f ), height - (focusWidth * 2) ) );
+				}
+			}
+		}
+
+		paint( g, c );
+	}
+
+	//---- class FlatArrowButton ----------------------------------------------
+
+	private static class FlatArrowButton
+		extends BasicArrowButton
+	{
+		FlatArrowButton() {
+			super( SOUTH, Color.WHITE, Color.WHITE, Color.WHITE, Color.WHITE );
+
+			setOpaque( false );
+			setBorder( null );
+		}
+
+		@Override
+		public void paint( Graphics g ) {
+			FlatUIUtils.setRenderingHints( (Graphics2D) g );
+
+			int w = scale( 9 );
+			int h = scale( 5 );
+			int x = Math.round( (getWidth() - w) / 2f );
+			int y = Math.round( (getHeight() - h) / 2f );
+
+			Path2D arrow = new Path2D.Float();
+			arrow.moveTo( x, y );
+			arrow.lineTo( x + w, y );
+			arrow.lineTo( x + (w / 2f), y + h );
+			arrow.closePath();
+
+			g.setColor( UIManager.getColor( isEnabled()
+				? "ComboBox.buttonArrowColor"
+				: "ComboBox.buttonDisabledArrowColor" ) );
+			((Graphics2D)g).fill( arrow );
+		}
+	}
+}

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

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2019 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
+ *
+ *     http://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.ui;
+
+/**
+ * Border for various components (e.g. {@link javax.swing.JComboBox}).
+ *
+ * @author Karl Tauber
+ */
+public class FlatRoundBorder
+	extends FlatBorder
+{
+	@Override
+	protected float getArc() {
+		return FlatUIUtils.getComponentArc();
+	}
+}

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

@@ -17,6 +17,7 @@
 package com.formdev.flatlaf.ui;
 
 import static com.formdev.flatlaf.util.UIScale.scale;
+import java.awt.Color;
 import java.awt.Container;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
@@ -57,6 +58,12 @@ public class FlatUIUtils
 		return scale( (float) getUIInt( "Button.arc", 6 ) );
 	}
 
+	public static Color getBorderColor( boolean enabled, boolean focused ) {
+		return UIManager.getColor( enabled
+			? (focused ? "Component.focusedBorderColor" : "Component.borderColor")
+			: "Component.disabledBorderColor" );
+	}
+
 	/**
 	 * Sets rendering hints used for painting.
 	 */
@@ -132,7 +139,7 @@ public class FlatUIUtils
 		float x2 = x1 + width;
 		float y2 = y1 + height;
 
-		float outerArc = arc > 0 ? arc + focusWidth - UIScale.scale( 2f ) : focusWidth;
+		float outerArc = (arc > 0) ? arc + focusWidth - UIScale.scale( 2f ) : focusWidth;
 		Path2D outerRect = createOutlinePath( x1, y1, x2, y2, outerArc );
 
 		float ow = focusWidth + lineWidth;

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatDarkLaf.properties

@@ -82,6 +82,15 @@ CheckBox.icon.checkmarkColor=A7A7A7
 CheckBox.icon.disabledCheckmarkColor=606060
 
 
+#---- ComboBox ----
+
+ComboBox.background=@textComponentBackground
+ComboBox.buttonBackground=@textComponentBackground
+ComboBox.buttonEditableBackground=404445
+ComboBox.buttonArrowColor=9A9DA1
+ComboBox.buttonDisabledArrowColor=585858
+
+
 #---- Component ----
 
 Component.borderColor=646464

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatLaf.properties

@@ -18,6 +18,7 @@
 
 ButtonUI=com.formdev.flatlaf.ui.FlatButtonUI
 CheckBoxUI=com.formdev.flatlaf.ui.FlatCheckBoxUI
+ComboBoxUI=com.formdev.flatlaf.ui.FlatComboBoxUI
 EditorPaneUI=com.formdev.flatlaf.ui.FlatEditorPaneUI
 FormattedTextFieldUI=com.formdev.flatlaf.ui.FlatFormattedTextFieldUI
 LabelUI=com.formdev.flatlaf.ui.FlatLabelUI
@@ -48,6 +49,12 @@ CheckBox.border=com.formdev.flatlaf.ui.FlatMarginBorder
 CheckBox.icon=com.formdev.flatlaf.ui.FlatCheckBoxIcon
 
 
+#---- ComboBox ----
+
+ComboBox.border=com.formdev.flatlaf.ui.FlatRoundBorder
+ComboBox.padding=1,6,1,6
+
+
 #---- Component ----
 
 Component.focusWidth=2

flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatLightLaf.properties

@@ -82,6 +82,15 @@ CheckBox.icon.checkmarkColor=FFFFFF
 CheckBox.icon.disabledCheckmarkColor=ABABAB
 
 
+#---- ComboBox ----
+
+ComboBox.background=@textComponentBackground
+ComboBox.buttonBackground=@textComponentBackground
+ComboBox.buttonEditableBackground=fafafa
+ComboBox.buttonArrowColor=666666
+ComboBox.buttonDisabledArrowColor=ABABAB
+
+
 #---- Component ----
 
 Component.borderColor=c4c4c4

flatlaf-core/src/test/java/com/formdev/flatlaf/FlatComponentsTest.java

@@ -75,6 +75,11 @@ public class FlatComponentsTest
 		JRadioButton radioButton2 = new JRadioButton();
 		JRadioButton radioButton3 = new JRadioButton();
 		JRadioButton radioButton4 = new JRadioButton();
+		JLabel comboBoxLabel = new JLabel();
+		JComboBox<String> comboBox1 = new JComboBox<>();
+		JComboBox<String> comboBox2 = new JComboBox<>();
+		JComboBox<String> comboBox3 = new JComboBox<>();
+		JComboBox<String> comboBox4 = new JComboBox<>();
 		JLabel textFieldLabel = new JLabel();
 		JTextField textField1 = new JTextField();
 		JTextField textField2 = new JTextField();
@@ -160,6 +165,7 @@ public class FlatComponentsTest
 			"[]" +
 			"[]" +
 			"[]" +
+			"[]" +
 			"[]"));
 
 		//---- labelLabel ----
@@ -260,81 +266,125 @@ public class FlatComponentsTest
 		radioButton4.setEnabled(false);
 		add(radioButton4, "cell 4 3");
 
+		//---- comboBoxLabel ----
+		comboBoxLabel.setText("JComboBox:");
+		add(comboBoxLabel, "cell 0 4");
+
+		//---- comboBox1 ----
+		comboBox1.setEditable(true);
+		comboBox1.setModel(new DefaultComboBoxModel<>(new String[] {
+			"editable",
+			"a",
+			"bb",
+			"ccc"
+		}));
+		add(comboBox1, "cell 1 4,growx");
+
+		//---- comboBox2 ----
+		comboBox2.setEditable(true);
+		comboBox2.setEnabled(false);
+		comboBox2.setModel(new DefaultComboBoxModel<>(new String[] {
+			"disabled",
+			"a",
+			"bb",
+			"ccc"
+		}));
+		add(comboBox2, "cell 2 4,growx");
+
+		//---- comboBox3 ----
+		comboBox3.setModel(new DefaultComboBoxModel<>(new String[] {
+			"not editable",
+			"a",
+			"bb",
+			"ccc"
+		}));
+		add(comboBox3, "cell 3 4,growx");
+
+		//---- comboBox4 ----
+		comboBox4.setModel(new DefaultComboBoxModel<>(new String[] {
+			"not editable disabled",
+			"a",
+			"bb",
+			"ccc"
+		}));
+		comboBox4.setEnabled(false);
+		add(comboBox4, "cell 4 4,growx");
+
 		//---- textFieldLabel ----
 		textFieldLabel.setText("JTextField:");
-		add(textFieldLabel, "cell 0 4");
+		add(textFieldLabel, "cell 0 5");
 
 		//---- textField1 ----
 		textField1.setText("editable");
-		add(textField1, "cell 1 4,growx");
+		add(textField1, "cell 1 5,growx");
 
 		//---- textField2 ----
 		textField2.setText("disabled");
 		textField2.setEnabled(false);
-		add(textField2, "cell 2 4,growx");
+		add(textField2, "cell 2 5,growx");
 
 		//---- textField3 ----
 		textField3.setText("not editable");
 		textField3.setEditable(false);
-		add(textField3, "cell 3 4,growx");
+		add(textField3, "cell 3 5,growx");
 
 		//---- textField4 ----
 		textField4.setText("not editable disabled");
 		textField4.setEnabled(false);
 		textField4.setEditable(false);
-		add(textField4, "cell 4 4,growx");
+		add(textField4, "cell 4 5,growx");
 
 		//---- formattedTextFieldLabel ----
 		formattedTextFieldLabel.setText("JFormattedTextField:");
-		add(formattedTextFieldLabel, "cell 0 5");
+		add(formattedTextFieldLabel, "cell 0 6");
 
 		//---- formattedTextField1 ----
 		formattedTextField1.setText("editable");
-		add(formattedTextField1, "cell 1 5,growx");
+		add(formattedTextField1, "cell 1 6,growx");
 
 		//---- formattedTextField2 ----
 		formattedTextField2.setText("disabled");
 		formattedTextField2.setEnabled(false);
-		add(formattedTextField2, "cell 2 5,growx");
+		add(formattedTextField2, "cell 2 6,growx");
 
 		//---- formattedTextField3 ----
 		formattedTextField3.setText("not editable");
 		formattedTextField3.setEditable(false);
-		add(formattedTextField3, "cell 3 5,growx");
+		add(formattedTextField3, "cell 3 6,growx");
 
 		//---- formattedTextField4 ----
 		formattedTextField4.setText("not editable disabled");
 		formattedTextField4.setEnabled(false);
 		formattedTextField4.setEditable(false);
-		add(formattedTextField4, "cell 4 5,growx");
+		add(formattedTextField4, "cell 4 6,growx");
 
 		//---- passwordFieldLabel ----
 		passwordFieldLabel.setText("JPasswordField:");
-		add(passwordFieldLabel, "cell 0 6");
+		add(passwordFieldLabel, "cell 0 7");
 
 		//---- passwordField1 ----
 		passwordField1.setText("editable");
-		add(passwordField1, "cell 1 6,growx");
+		add(passwordField1, "cell 1 7,growx");
 
 		//---- passwordField2 ----
 		passwordField2.setText("disabled");
 		passwordField2.setEnabled(false);
-		add(passwordField2, "cell 2 6,growx");
+		add(passwordField2, "cell 2 7,growx");
 
 		//---- passwordField3 ----
 		passwordField3.setText("not editable");
 		passwordField3.setEditable(false);
-		add(passwordField3, "cell 3 6,growx");
+		add(passwordField3, "cell 3 7,growx");
 
 		//---- passwordField4 ----
 		passwordField4.setText("not editable disabled");
 		passwordField4.setEnabled(false);
 		passwordField4.setEditable(false);
-		add(passwordField4, "cell 4 6,growx");
+		add(passwordField4, "cell 4 7,growx");
 
 		//---- textAreaLabel ----
 		textAreaLabel.setText("JTextArea:");
-		add(textAreaLabel, "cell 0 7");
+		add(textAreaLabel, "cell 0 8");
 
 		//======== scrollPane1 ========
 		{
@@ -346,7 +396,7 @@ public class FlatComponentsTest
 			textArea1.setRows(2);
 			scrollPane1.setViewportView(textArea1);
 		}
-		add(scrollPane1, "cell 1 7,growx");
+		add(scrollPane1, "cell 1 8,growx");
 
 		//======== scrollPane2 ========
 		{
@@ -359,7 +409,7 @@ public class FlatComponentsTest
 			textArea2.setEnabled(false);
 			scrollPane2.setViewportView(textArea2);
 		}
-		add(scrollPane2, "cell 2 7,growx");
+		add(scrollPane2, "cell 2 8,growx");
 
 		//======== scrollPane3 ========
 		{
@@ -372,7 +422,7 @@ public class FlatComponentsTest
 			textArea3.setEditable(false);
 			scrollPane3.setViewportView(textArea3);
 		}
-		add(scrollPane3, "cell 3 7,growx");
+		add(scrollPane3, "cell 3 8,growx");
 
 		//======== scrollPane4 ========
 		{
@@ -386,16 +436,16 @@ public class FlatComponentsTest
 			textArea4.setEnabled(false);
 			scrollPane4.setViewportView(textArea4);
 		}
-		add(scrollPane4, "cell 4 7,growx");
+		add(scrollPane4, "cell 4 8,growx");
 
 		//---- textArea5 ----
 		textArea5.setRows(2);
 		textArea5.setText("no scroll pane");
-		add(textArea5, "cell 5 7,growx");
+		add(textArea5, "cell 5 8,growx");
 
 		//---- editorPaneLabel ----
 		editorPaneLabel.setText("JEditorPane");
-		add(editorPaneLabel, "cell 0 8");
+		add(editorPaneLabel, "cell 0 9");
 
 		//======== scrollPane5 ========
 		{
@@ -406,7 +456,7 @@ public class FlatComponentsTest
 			editorPane1.setText("editable");
 			scrollPane5.setViewportView(editorPane1);
 		}
-		add(scrollPane5, "cell 1 8,growx");
+		add(scrollPane5, "cell 1 9,growx");
 
 		//======== scrollPane6 ========
 		{
@@ -418,7 +468,7 @@ public class FlatComponentsTest
 			editorPane2.setEnabled(false);
 			scrollPane6.setViewportView(editorPane2);
 		}
-		add(scrollPane6, "cell 2 8,growx");
+		add(scrollPane6, "cell 2 9,growx");
 
 		//======== scrollPane7 ========
 		{
@@ -430,7 +480,7 @@ public class FlatComponentsTest
 			editorPane3.setEditable(false);
 			scrollPane7.setViewportView(editorPane3);
 		}
-		add(scrollPane7, "cell 3 8,growx");
+		add(scrollPane7, "cell 3 9,growx");
 
 		//======== scrollPane8 ========
 		{
@@ -443,15 +493,15 @@ public class FlatComponentsTest
 			editorPane4.setEnabled(false);
 			scrollPane8.setViewportView(editorPane4);
 		}
-		add(scrollPane8, "cell 4 8,growx");
+		add(scrollPane8, "cell 4 9,growx");
 
 		//---- editorPane5 ----
 		editorPane5.setText("no scroll pane");
-		add(editorPane5, "cell 5 8,growx");
+		add(editorPane5, "cell 5 9,growx");
 
 		//---- textPaneLabel ----
 		textPaneLabel.setText("JTextPane:");
-		add(textPaneLabel, "cell 0 9");
+		add(textPaneLabel, "cell 0 10");
 
 		//======== scrollPane9 ========
 		{
@@ -462,7 +512,7 @@ public class FlatComponentsTest
 			textPane1.setText("editable");
 			scrollPane9.setViewportView(textPane1);
 		}
-		add(scrollPane9, "cell 1 9,growx");
+		add(scrollPane9, "cell 1 10,growx");
 
 		//======== scrollPane10 ========
 		{
@@ -474,7 +524,7 @@ public class FlatComponentsTest
 			textPane2.setEnabled(false);
 			scrollPane10.setViewportView(textPane2);
 		}
-		add(scrollPane10, "cell 2 9,growx");
+		add(scrollPane10, "cell 2 10,growx");
 
 		//======== scrollPane11 ========
 		{
@@ -486,7 +536,7 @@ public class FlatComponentsTest
 			textPane3.setEditable(false);
 			scrollPane11.setViewportView(textPane3);
 		}
-		add(scrollPane11, "cell 3 9,growx");
+		add(scrollPane11, "cell 3 10,growx");
 
 		//======== scrollPane12 ========
 		{
@@ -499,15 +549,15 @@ public class FlatComponentsTest
 			textPane4.setEnabled(false);
 			scrollPane12.setViewportView(textPane4);
 		}
-		add(scrollPane12, "cell 4 9,growx");
+		add(scrollPane12, "cell 4 10,growx");
 
 		//---- textPane5 ----
 		textPane5.setText("no scroll pane");
-		add(textPane5, "cell 5 9,growx");
+		add(textPane5, "cell 5 10,growx");
 
 		//---- scrollPaneLabel ----
 		scrollPaneLabel.setText("JScrollPane:");
-		add(scrollPaneLabel, "cell 0 10");
+		add(scrollPaneLabel, "cell 0 11");
 
 		//======== scrollPane13 ========
 		{
@@ -521,55 +571,55 @@ public class FlatComponentsTest
 			}
 			scrollPane13.setViewportView(panel1);
 		}
-		add(scrollPane13, "cell 1 10,grow,width 70,height 70");
+		add(scrollPane13, "cell 1 11,grow,width 70,height 70");
-		add(scrollBar2, "cell 2 10,growy");
+		add(scrollBar2, "cell 2 11,growy");
 
 		//---- scrollBar3 ----
 		scrollBar3.setEnabled(false);
-		add(scrollBar3, "cell 2 10,growy");
+		add(scrollBar3, "cell 2 11,growy");
-		add(scrollPane14, "cell 3 10,grow");
+		add(scrollPane14, "cell 3 11,grow");
 
 		//---- progressBar3 ----
 		progressBar3.setOrientation(SwingConstants.VERTICAL);
 		progressBar3.setValue(50);
-		add(progressBar3, "cell 4 10");
+		add(progressBar3, "cell 4 11");
 
 		//---- progressBar4 ----
 		progressBar4.setOrientation(SwingConstants.VERTICAL);
 		progressBar4.setValue(55);
 		progressBar4.setStringPainted(true);
-		add(progressBar4, "cell 4 10");
+		add(progressBar4, "cell 4 11");
 
 		//---- scrollBarLabel ----
 		scrollBarLabel.setText("JScrollBar:");
-		add(scrollBarLabel, "cell 0 11");
+		add(scrollBarLabel, "cell 0 12");
 
 		//---- scrollBar1 ----
 		scrollBar1.setOrientation(Adjustable.HORIZONTAL);
-		add(scrollBar1, "cell 1 11,growx");
+		add(scrollBar1, "cell 1 12,growx");
 
 		//---- scrollBar4 ----
 		scrollBar4.setOrientation(Adjustable.HORIZONTAL);
 		scrollBar4.setEnabled(false);
-		add(scrollBar4, "cell 1 12,growx");
+		add(scrollBar4, "cell 1 13,growx");
 
 		//---- progressBarLabel ----
 		progressBarLabel.setText("JProgressBar:");
-		add(progressBarLabel, "cell 0 13");
+		add(progressBarLabel, "cell 0 14");
 
 		//---- progressBar1 ----
 		progressBar1.setValue(50);
-		add(progressBar1, "cell 1 13");
+		add(progressBar1, "cell 1 14");
 
 		//---- progressBar2 ----
 		progressBar2.setStringPainted(true);
 		progressBar2.setValue(55);
-		add(progressBar2, "cell 3 13");
+		add(progressBar2, "cell 3 14");
 
 		//---- indeterminateCheckBox ----
 		indeterminateCheckBox.setText("indeterminate");
 		indeterminateCheckBox.addActionListener(e -> indeterminateCheckBoxActionPerformed());
-		add(indeterminateCheckBox, "cell 4 13");
+		add(indeterminateCheckBox, "cell 4 14");
 		// JFormDesigner - End of component initialization  //GEN-END:initComponents
 	}
 

flatlaf-core/src/test/java/com/formdev/flatlaf/FlatComponentsTest.jfd

@@ -9,7 +9,7 @@ new FormModel {
 		add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
 			"$layoutConstraints": "insets 0,hidemode 3,gap 5 5"
 			"$columnConstraints": "[][][][][][]"
-			"$rowConstraints": "[][][][][][][][][][][][][][]"
+			"$rowConstraints": "[][][][][][][][][][][][][][][]"
 		} ) {
 			name: "this"
 			add( new FormComponent( "javax.swing.JLabel" ) {
@@ -148,31 +148,89 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 4 3"
 			} )
+			add( new FormComponent( "javax.swing.JLabel" ) {
+				name: "comboBoxLabel"
+				"text": "JComboBox:"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 4"
+			} )
+			add( new FormComponent( "javax.swing.JComboBox" ) {
+				name: "comboBox1"
+				"editable": true
+				"model": new javax.swing.DefaultComboBoxModel {
+					selectedItem: "editable"
+					addElement( "editable" )
+					addElement( "a" )
+					addElement( "bb" )
+					addElement( "ccc" )
+				}
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 4,growx"
+			} )
+			add( new FormComponent( "javax.swing.JComboBox" ) {
+				name: "comboBox2"
+				"editable": true
+				"enabled": false
+				"model": new javax.swing.DefaultComboBoxModel {
+					selectedItem: "disabled"
+					addElement( "disabled" )
+					addElement( "a" )
+					addElement( "bb" )
+					addElement( "ccc" )
+				}
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 2 4,growx"
+			} )
+			add( new FormComponent( "javax.swing.JComboBox" ) {
+				name: "comboBox3"
+				"model": new javax.swing.DefaultComboBoxModel {
+					selectedItem: "not editable"
+					addElement( "not editable" )
+					addElement( "a" )
+					addElement( "bb" )
+					addElement( "ccc" )
+				}
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 3 4,growx"
+			} )
+			add( new FormComponent( "javax.swing.JComboBox" ) {
+				name: "comboBox4"
+				"model": new javax.swing.DefaultComboBoxModel {
+					selectedItem: "not editable disabled"
+					addElement( "not editable disabled" )
+					addElement( "a" )
+					addElement( "bb" )
+					addElement( "ccc" )
+				}
+				"enabled": false
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 4 4,growx"
+			} )
 			add( new FormComponent( "javax.swing.JLabel" ) {
 				name: "textFieldLabel"
 				"text": "JTextField:"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 0 4"
+				"value": "cell 0 5"
 			} )
 			add( new FormComponent( "javax.swing.JTextField" ) {
 				name: "textField1"
 				"text": "editable"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 4,growx"
+				"value": "cell 1 5,growx"
 			} )
 			add( new FormComponent( "javax.swing.JTextField" ) {
 				name: "textField2"
 				"text": "disabled"
 				"enabled": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 2 4,growx"
+				"value": "cell 2 5,growx"
 			} )
 			add( new FormComponent( "javax.swing.JTextField" ) {
 				name: "textField3"
 				"text": "not editable"
 				"editable": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 3 4,growx"
+				"value": "cell 3 5,growx"
 			} )
 			add( new FormComponent( "javax.swing.JTextField" ) {
 				name: "textField4"
@@ -180,33 +238,33 @@ new FormModel {
 				"enabled": false
 				"editable": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 4 4,growx"
+				"value": "cell 4 5,growx"
 			} )
 			add( new FormComponent( "javax.swing.JLabel" ) {
 				name: "formattedTextFieldLabel"
 				"text": "JFormattedTextField:"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 0 5"
+				"value": "cell 0 6"
 			} )
 			add( new FormComponent( "javax.swing.JFormattedTextField" ) {
 				name: "formattedTextField1"
 				"text": "editable"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 5,growx"
+				"value": "cell 1 6,growx"
 			} )
 			add( new FormComponent( "javax.swing.JFormattedTextField" ) {
 				name: "formattedTextField2"
 				"text": "disabled"
 				"enabled": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 2 5,growx"
+				"value": "cell 2 6,growx"
 			} )
 			add( new FormComponent( "javax.swing.JFormattedTextField" ) {
 				name: "formattedTextField3"
 				"text": "not editable"
 				"editable": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 3 5,growx"
+				"value": "cell 3 6,growx"
 			} )
 			add( new FormComponent( "javax.swing.JFormattedTextField" ) {
 				name: "formattedTextField4"
@@ -214,33 +272,33 @@ new FormModel {
 				"enabled": false
 				"editable": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 4 5,growx"
+				"value": "cell 4 6,growx"
 			} )
 			add( new FormComponent( "javax.swing.JLabel" ) {
 				name: "passwordFieldLabel"
 				"text": "JPasswordField:"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 0 6"
+				"value": "cell 0 7"
 			} )
 			add( new FormComponent( "javax.swing.JPasswordField" ) {
 				name: "passwordField1"
 				"text": "editable"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 6,growx"
+				"value": "cell 1 7,growx"
 			} )
 			add( new FormComponent( "javax.swing.JPasswordField" ) {
 				name: "passwordField2"
 				"text": "disabled"
 				"enabled": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 2 6,growx"
+				"value": "cell 2 7,growx"
 			} )
 			add( new FormComponent( "javax.swing.JPasswordField" ) {
 				name: "passwordField3"
 				"text": "not editable"
 				"editable": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 3 6,growx"
+				"value": "cell 3 7,growx"
 			} )
 			add( new FormComponent( "javax.swing.JPasswordField" ) {
 				name: "passwordField4"
@@ -248,13 +306,13 @@ new FormModel {
 				"enabled": false
 				"editable": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 4 6,growx"
+				"value": "cell 4 7,growx"
 			} )
 			add( new FormComponent( "javax.swing.JLabel" ) {
 				name: "textAreaLabel"
 				"text": "JTextArea:"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 0 7"
+				"value": "cell 0 8"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane1"
@@ -266,7 +324,7 @@ new FormModel {
 					"rows": 2
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 7,growx"
+				"value": "cell 1 8,growx"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane2"
@@ -279,7 +337,7 @@ new FormModel {
 					"enabled": false
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 2 7,growx"
+				"value": "cell 2 8,growx"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane3"
@@ -292,7 +350,7 @@ new FormModel {
 					"editable": false
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 3 7,growx"
+				"value": "cell 3 8,growx"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane4"
@@ -306,20 +364,20 @@ new FormModel {
 					"enabled": false
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 4 7,growx"
+				"value": "cell 4 8,growx"
 			} )
 			add( new FormComponent( "javax.swing.JTextArea" ) {
 				name: "textArea5"
 				"rows": 2
 				"text": "no scroll pane"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 5 7,growx"
+				"value": "cell 5 8,growx"
 			} )
 			add( new FormComponent( "javax.swing.JLabel" ) {
 				name: "editorPaneLabel"
 				"text": "JEditorPane"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 0 8"
+				"value": "cell 0 9"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane5"
@@ -330,7 +388,7 @@ new FormModel {
 					"text": "editable"
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 8,growx"
+				"value": "cell 1 9,growx"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane6"
@@ -342,7 +400,7 @@ new FormModel {
 					"enabled": false
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 2 8,growx"
+				"value": "cell 2 9,growx"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane7"
@@ -354,7 +412,7 @@ new FormModel {
 					"editable": false
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 3 8,growx"
+				"value": "cell 3 9,growx"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane8"
@@ -367,19 +425,19 @@ new FormModel {
 					"enabled": false
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 4 8,growx"
+				"value": "cell 4 9,growx"
 			} )
 			add( new FormComponent( "javax.swing.JEditorPane" ) {
 				name: "editorPane5"
 				"text": "no scroll pane"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 5 8,growx"
+				"value": "cell 5 9,growx"
 			} )
 			add( new FormComponent( "javax.swing.JLabel" ) {
 				name: "textPaneLabel"
 				"text": "JTextPane:"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 0 9"
+				"value": "cell 0 10"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane9"
@@ -390,7 +448,7 @@ new FormModel {
 					"text": "editable"
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 9,growx"
+				"value": "cell 1 10,growx"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane10"
@@ -402,7 +460,7 @@ new FormModel {
 					"enabled": false
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 2 9,growx"
+				"value": "cell 2 10,growx"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane11"
@@ -414,7 +472,7 @@ new FormModel {
 					"editable": false
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 3 9,growx"
+				"value": "cell 3 10,growx"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane12"
@@ -427,19 +485,19 @@ new FormModel {
 					"enabled": false
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 4 9,growx"
+				"value": "cell 4 10,growx"
 			} )
 			add( new FormComponent( "javax.swing.JTextPane" ) {
 				name: "textPane5"
 				"text": "no scroll pane"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 5 9,growx"
+				"value": "cell 5 10,growx"
 			} )
 			add( new FormComponent( "javax.swing.JLabel" ) {
 				name: "scrollPaneLabel"
 				"text": "JScrollPane:"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 0 10"
+				"value": "cell 0 11"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane13"
@@ -450,23 +508,23 @@ new FormModel {
 					"preferredSize": new java.awt.Dimension( 200, 200 )
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 10,grow,width 70,height 70"
+				"value": "cell 1 11,grow,width 70,height 70"
 			} )
 			add( new FormComponent( "javax.swing.JScrollBar" ) {
 				name: "scrollBar2"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 2 10,growy"
+				"value": "cell 2 11,growy"
 			} )
 			add( new FormComponent( "javax.swing.JScrollBar" ) {
 				name: "scrollBar3"
 				"enabled": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 2 10,growy"
+				"value": "cell 2 11,growy"
 			} )
 			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
 				name: "scrollPane14"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 3 10,grow"
+				"value": "cell 3 11,grow"
 			} )
 			add( new FormComponent( "javax.swing.JProgressBar" ) {
 				name: "progressBar3"
@@ -476,7 +534,7 @@ new FormModel {
 					"JavaCodeGenerator.variableLocal": false
 				}
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 4 10"
+				"value": "cell 4 11"
 			} )
 			add( new FormComponent( "javax.swing.JProgressBar" ) {
 				name: "progressBar4"
@@ -487,32 +545,32 @@ new FormModel {
 					"JavaCodeGenerator.variableLocal": false
 				}
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 4 10"
+				"value": "cell 4 11"
 			} )
 			add( new FormComponent( "javax.swing.JLabel" ) {
 				name: "scrollBarLabel"
 				"text": "JScrollBar:"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 0 11"
+				"value": "cell 0 12"
 			} )
 			add( new FormComponent( "javax.swing.JScrollBar" ) {
 				name: "scrollBar1"
 				"orientation": 0
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 11,growx"
+				"value": "cell 1 12,growx"
 			} )
 			add( new FormComponent( "javax.swing.JScrollBar" ) {
 				name: "scrollBar4"
 				"orientation": 0
 				"enabled": false
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 12,growx"
+				"value": "cell 1 13,growx"
 			} )
 			add( new FormComponent( "javax.swing.JLabel" ) {
 				name: "progressBarLabel"
 				"text": "JProgressBar:"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 0 13"
+				"value": "cell 0 14"
 			} )
 			add( new FormComponent( "javax.swing.JProgressBar" ) {
 				name: "progressBar1"
@@ -521,7 +579,7 @@ new FormModel {
 					"JavaCodeGenerator.variableLocal": false
 				}
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 1 13"
+				"value": "cell 1 14"
 			} )
 			add( new FormComponent( "javax.swing.JProgressBar" ) {
 				name: "progressBar2"
@@ -531,7 +589,7 @@ new FormModel {
 					"JavaCodeGenerator.variableLocal": false
 				}
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 3 13"
+				"value": "cell 3 14"
 			} )
 			add( new FormComponent( "javax.swing.JCheckBox" ) {
 				name: "indeterminateCheckBox"
@@ -541,7 +599,7 @@ new FormModel {
 				}
 				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "indeterminateCheckBoxActionPerformed", false ) )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 4 13"
+				"value": "cell 4 14"
 			} )
 		}, new FormLayoutConstraints( null ) {
 			"location": new java.awt.Point( 0, 0 )

flatlaf-core/src/test/resources/com/formdev/flatlaf/FlatTestLaf.properties

@@ -61,6 +61,15 @@ CheckBox.icon.checkmarkColor=FFFFFF
 CheckBox.icon.disabledCheckmarkColor=ABABAB
 
 
+#---- ComboBox ----
+
+ComboBox.background=ffffff
+ComboBox.buttonBackground=f0f0f0
+ComboBox.buttonEditableBackground=cccccc
+ComboBox.buttonArrowColor=666666
+ComboBox.buttonDisabledArrowColor=ABABAB
+
+
 #---- Component ----
 
 Component.borderColor=ff0000