Button and ToggleButton: support square button style

CHANGELOG.md

@@ -9,6 +9,8 @@ FlatLaf Change Log
 - TableHeader: Paint column borders if renderer has changed, but delegates to
   the system default renderer (e.g. done in NetBeans).
 - Label and ToolTip: Fixed font sizes for HTML headings.
+- Button and ToggleButton: Support square button style (set client property
+  `JButton.buttonType` to `square`).
 
 
 ## 0.23.1

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

@@ -27,14 +27,25 @@ public interface FlatClientProperties
 	/**
 	 * Specifies type of a button.
 	 * <p>
-	 * <strong>Component</strong> {@link javax.swing.JButton}<br>
+	 * <strong>Components</strong> {@link javax.swing.JButton} and {@link javax.swing.JToggleButton}<br>
 	 * <strong>Value type</strong> {@link java.lang.String}<br>
-	 * <strong>Allowed Values</strong> {@link BUTTON_TYPE_HELP}
+	 * <strong>Allowed Values</strong> {@link #BUTTON_TYPE_SQUARE} and {@link #BUTTON_TYPE_HELP}
 	 */
 	String BUTTON_TYPE = "JButton.buttonType";
 
+	/**
+	 * Paint the button with square edges.
+	 * <p>
+	 * <strong>Components</strong> {@link javax.swing.JButton} and {@link javax.swing.JToggleButton}
+	 *
+	 * @see #BUTTON_TYPE
+	 */
+	String BUTTON_TYPE_SQUARE = "square";
+
 	/**
 	 * Paint a help button (circle with question mark).
+	 * <p>
+	 * <strong>Components</strong> {@link javax.swing.JButton}
 	 *
 	 * @see #BUTTON_TYPE
 	 */
@@ -45,7 +56,7 @@ public interface FlatClientProperties
 	 * <p>
 	 * <strong>Component</strong> {@link javax.swing.JCheckBox}<br>
 	 * <strong>Value type</strong> {@link java.lang.String}<br>
-	 * <strong>Allowed Values</strong> {@link SELECTED_STATE_INDETERMINATE}
+	 * <strong>Allowed Values</strong> {@link #SELECTED_STATE_INDETERMINATE}
 	 */
 	String SELECTED_STATE = "JButton.selectedState";
 

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

@@ -75,7 +75,7 @@ public class FlatBorder
 			boolean isCellEditor = isTableCellEditor( c );
 			float focusWidth = isCellEditor ? 0 : getFocusWidth();
 			float borderWidth = getBorderWidth( c );
-			float arc = isCellEditor ? 0 : getArc();
+			float arc = isCellEditor ? 0 : getArc( c );
 
 			if( isFocused( c ) ) {
 				g2.setColor( getFocusColor( c ) );
@@ -173,7 +173,7 @@ public class FlatBorder
 		return getLineWidth();
 	}
 
-	protected float getArc() {
+	protected float getArc( Component c ) {
 		return 0;
 	}
 }

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

@@ -110,7 +110,7 @@ public class FlatButtonBorder
 	}
 
 	@Override
-	protected float getArc() {
+	protected float getArc( Component c ) {
-		return scale( (float) arc );
+		return FlatButtonUI.isSquareButton( c ) ? 0 : scale( (float) arc );
 	}
 }

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

@@ -209,6 +209,10 @@ public class FlatButtonUI
 			(icon == null && text != null && ("...".equals( text ) || text.length() == 1));
 	}
 
+	static boolean isSquareButton( Component c ) {
+		return c instanceof AbstractButton && clientPropertyEquals( (AbstractButton) c, BUTTON_TYPE, BUTTON_TYPE_SQUARE );
+	}
+
 	static boolean isHelpButton( Component c ) {
 		return c instanceof JButton && clientPropertyEquals( (JButton) c, BUTTON_TYPE, BUTTON_TYPE_HELP );
 	}
@@ -237,7 +241,8 @@ public class FlatButtonUI
 
 					Border border = c.getBorder();
 					float focusWidth = (border instanceof FlatBorder) ? scale( (float) this.focusWidth ) : 0;
-					float arc = (border instanceof FlatButtonBorder || isToolBarButton( c )) ? scale( (float) this.arc ) : 0;
+					float arc = ((border instanceof FlatButtonBorder && !isSquareButton( c )) || isToolBarButton( c ))
+						? scale( (float) this.arc ) : 0;
 					boolean def = isDefaultButton( c );
 
 					// paint shadow

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

@@ -17,6 +17,7 @@
 package com.formdev.flatlaf.ui;
 
 import static com.formdev.flatlaf.util.UIScale.scale;
+import java.awt.Component;
 import javax.swing.UIManager;
 
 /**
@@ -32,7 +33,7 @@ public class FlatRoundBorder
 	protected final int arc = UIManager.getInt( "Component.arc" );
 
 	@Override
-	protected float getArc() {
+	protected float getArc( Component c ) {
 		return scale( (float) arc );
 	}
 }

flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/BasicComponentsPanel.java

@@ -37,6 +37,8 @@ class BasicComponentsPanel
 		JLabel buttonLabel = new JLabel();
 		JButton button1 = new JButton();
 		JButton button2 = new JButton();
+		JButton button5 = new JButton();
+		JButton button6 = new JButton();
 		JButton button3 = new JButton();
 		JButton button4 = new JButton();
 		JButton button13 = new JButton();
@@ -166,10 +168,21 @@ class BasicComponentsPanel
 		button2.setEnabled(false);
 		add(button2, "cell 2 1");
 
+		//---- button5 ----
+		button5.setText("square");
+		button5.putClientProperty("JButton.buttonType", "square");
+		add(button5, "cell 3 1");
+
+		//---- button6 ----
+		button6.setText("square");
+		button6.setEnabled(false);
+		button6.putClientProperty("JButton.buttonType", "square");
+		add(button6, "cell 4 1");
+
 		//---- button3 ----
 		button3.setText("Help");
 		button3.putClientProperty("JButton.buttonType", "help");
-		add(button3, "cell 3 1");
+		add(button3, "cell 4 1");
 
 		//---- button4 ----
 		button4.setText("Help");

flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/BasicComponentsPanel.jfd

@@ -1,4 +1,4 @@
-JFDML JFormDesigner: "7.0.0.0.194" Java: "11.0.2" encoding: "UTF-8"
+JFDML JFormDesigner: "7.0.0.0.194" Java: "13.0.1" encoding: "UTF-8"
 
 new FormModel {
 	contentType: "form/swing"
@@ -54,12 +54,27 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 2 1"
 			} )
+			add( new FormComponent( "javax.swing.JButton" ) {
+				name: "button5"
+				"text": "square"
+				"$client.JButton.buttonType": "square"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 3 1"
+			} )
+			add( new FormComponent( "javax.swing.JButton" ) {
+				name: "button6"
+				"text": "square"
+				"enabled": false
+				"$client.JButton.buttonType": "square"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 4 1"
+			} )
 			add( new FormComponent( "javax.swing.JButton" ) {
 				name: "button3"
 				"text": "Help"
 				"$client.JButton.buttonType": "help"
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
-				"value": "cell 3 1"
+				"value": "cell 4 1"
 			} )
 			add( new FormComponent( "javax.swing.JButton" ) {
 				name: "button4"

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatComponentsTest.java

@@ -61,7 +61,9 @@ public class FlatComponentsTest
 		JLabel label2 = new JLabel();
 		JLabel buttonLabel = new JLabel();
 		JButton button1 = new JButton();
+		JButton button17 = new JButton();
 		JButton button2 = new JButton();
+		JButton button18 = new JButton();
 		FlatComponentsTest.TestDefaultButton button5 = new FlatComponentsTest.TestDefaultButton();
 		JButton button3 = new JButton();
 		JButton button12 = new JButton();
@@ -71,7 +73,9 @@ public class FlatComponentsTest
 		JButton button16 = new JButton();
 		JLabel toggleButtonLabel = new JLabel();
 		JToggleButton toggleButton1 = new JToggleButton();
+		JToggleButton toggleButton9 = new JToggleButton();
 		JToggleButton toggleButton2 = new JToggleButton();
+		JToggleButton toggleButton10 = new JToggleButton();
 		JToggleButton toggleButton3 = new JToggleButton();
 		JToggleButton toggleButton4 = new JToggleButton();
 		JLabel checkBoxLabel = new JLabel();
@@ -249,6 +253,11 @@ public class FlatComponentsTest
 		button1.setToolTipText("This button is enabled.");
 		add(button1, "cell 1 1");
 
+		//---- button17 ----
+		button17.setText("square");
+		button17.putClientProperty("JButton.buttonType", "square");
+		add(button17, "cell 1 1");
+
 		//---- button2 ----
 		button2.setText("disabled");
 		button2.setDisplayedMnemonicIndex(0);
@@ -256,6 +265,12 @@ public class FlatComponentsTest
 		button2.setToolTipText("This button is disabled.");
 		add(button2, "cell 2 1");
 
+		//---- button18 ----
+		button18.setText("square");
+		button18.putClientProperty("JButton.buttonType", "square");
+		button18.setEnabled(false);
+		add(button18, "cell 2 1");
+
 		//---- button5 ----
 		button5.setText("default");
 		button5.setDisplayedMnemonicIndex(0);
@@ -297,11 +312,22 @@ public class FlatComponentsTest
 		toggleButton1.setText("enabled");
 		add(toggleButton1, "cell 1 2");
 
+		//---- toggleButton9 ----
+		toggleButton9.setText("square");
+		toggleButton9.putClientProperty("JButton.buttonType", "square");
+		add(toggleButton9, "cell 1 2");
+
 		//---- toggleButton2 ----
 		toggleButton2.setText("disabled");
 		toggleButton2.setEnabled(false);
 		add(toggleButton2, "cell 2 2");
 
+		//---- toggleButton10 ----
+		toggleButton10.setText("square");
+		toggleButton10.putClientProperty("JButton.buttonType", "square");
+		toggleButton10.setEnabled(false);
+		add(toggleButton10, "cell 2 2");
+
 		//---- toggleButton3 ----
 		toggleButton3.setText("selected");
 		toggleButton3.setSelected(true);

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatComponentsTest.jfd

@@ -47,6 +47,13 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 1 1"
 			} )
+			add( new FormComponent( "javax.swing.JButton" ) {
+				name: "button17"
+				"text": "square"
+				"$client.JButton.buttonType": "square"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 1"
+			} )
 			add( new FormComponent( "javax.swing.JButton" ) {
 				name: "button2"
 				"text": "disabled"
@@ -56,6 +63,14 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 2 1"
 			} )
+			add( new FormComponent( "javax.swing.JButton" ) {
+				name: "button18"
+				"text": "square"
+				"$client.JButton.buttonType": "square"
+				"enabled": false
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 2 1"
+			} )
 			add( new FormComponent( "com.formdev.flatlaf.testing.FlatComponentsTest$TestDefaultButton" ) {
 				name: "button5"
 				"text": "default"
@@ -115,6 +130,13 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 1 2"
 			} )
+			add( new FormComponent( "javax.swing.JToggleButton" ) {
+				name: "toggleButton9"
+				"text": "square"
+				"$client.JButton.buttonType": "square"
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 1 2"
+			} )
 			add( new FormComponent( "javax.swing.JToggleButton" ) {
 				name: "toggleButton2"
 				"text": "disabled"
@@ -122,6 +144,14 @@ new FormModel {
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 2 2"
 			} )
+			add( new FormComponent( "javax.swing.JToggleButton" ) {
+				name: "toggleButton10"
+				"text": "square"
+				"$client.JButton.buttonType": "square"
+				"enabled": false
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 2 2"
+			} )
 			add( new FormComponent( "javax.swing.JToggleButton" ) {
 				name: "toggleButton3"
 				"text": "selected"
@@ -935,7 +965,7 @@ new FormModel {
 			} )
 		}, new FormLayoutConstraints( null ) {
 			"location": new java.awt.Point( 0, 0 )
-			"size": new java.awt.Dimension( 865, 800 )
+			"size": new java.awt.Dimension( 1005, 800 )
 		} )
 	}
 }