FlatArrowButton: refactored arrow painting to FlatUIUtils.paintArrow() so that it can be easily used other components (e.g. JideSplitButton)

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

@@ -17,16 +17,13 @@
 package com.formdev.flatlaf.ui;
 
 import static com.formdev.flatlaf.util.UIScale.scale;
-import java.awt.BasicStroke;
 import java.awt.Color;
 import java.awt.Container;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
-import java.awt.Shape;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
-import java.awt.geom.Path2D;
 import javax.swing.JComponent;
 import javax.swing.plaf.UIResource;
 import javax.swing.plaf.basic.BasicArrowButton;
@@ -190,73 +187,14 @@ public class FlatArrowButton
 	}
 
 	protected void paintArrow( Graphics2D g ) {
-		int direction = getDirection();
 		boolean vert = (direction == NORTH || direction == SOUTH);
-
-		// compute width/height
-		int w = scale( arrowWidth + (chevron ? 0 : 1) );
-		int h = scale( (arrowWidth / 2) + (chevron ? 0 : 1) );
-
-		// rotate width/height
-		int rw = vert ? w : h;
-		int rh = vert ? h : w;
-
-		// chevron lines end 1px outside of width/height
-		if( chevron ) {
-			// add 1px to width/height for position calculation only
-			rw++;
-			rh++;
-		}
-
-		int x = Math.round( (getWidth() - rw) / 2f + scale( (float) xOffset ) );
-		int y = Math.round( (getHeight() - rh) / 2f + scale( (float) yOffset ) );
+		int x = 0;
 
 		// move arrow for round borders
 		Container parent = getParent();
 		if( vert && parent instanceof JComponent && FlatUIUtils.hasRoundBorder( (JComponent) parent ) )
 			x -= scale( parent.getComponentOrientation().isLeftToRight() ? 1 : -1 );
 
-		// paint arrow
-		g.translate( x, y );
-/*debug
-		debugPaint( g, vert, rw, rh );
-debug*/
-		Shape arrowShape = createArrowShape( direction, chevron, w, h );
-		if( chevron ) {
-			g.setStroke( new BasicStroke( scale( 1f ) ) );
-			g.draw( arrowShape );
-		} else {
-			// triangle
-			g.fill( arrowShape );
-		}
-		g.translate( -x, -y );
+		FlatUIUtils.paintArrow( g, x, 0, getWidth(), getHeight(), getDirection(), chevron, arrowWidth, xOffset, yOffset );
 	}
-
-	public static Shape createArrowShape( int direction, boolean chevron, float w, float h ) {
-		switch( direction ) {
-			case NORTH:	return FlatUIUtils.createPath( !chevron, 0,h, (w / 2f),0, w,h );
-			case SOUTH:	return FlatUIUtils.createPath( !chevron, 0,0, (w / 2f),h, w,0 );
-			case WEST:	return FlatUIUtils.createPath( !chevron, h,0, 0,(w / 2f), h,w );
-			case EAST:	return FlatUIUtils.createPath( !chevron, 0,0, h,(w / 2f), 0,w );
-			default:	return new Path2D.Float();
-		}
-	}
-
-/*debug
-	private void debugPaint( Graphics g, boolean vert, int w, int h ) {
-		Color oldColor = g.getColor();
-		g.setColor( Color.red );
-		g.drawRect( 0, 0, w - 1, h - 1 );
-
-		int xy1 = -2;
-		int xy2 = h + 1;
-		for( int i = 0; i < 20; i++ ) {
-			g.drawRect( vert ? 0 : xy1, vert ? xy1 : 0, 0, 0 );
-			g.drawRect( vert ? 0 : xy2, vert ? xy2 : 0, 0, 0 );
-			xy1 -= 2;
-			xy2 += 2;
-		}
-		g.setColor( oldColor );
-	}
-debug*/
 }

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

@@ -16,6 +16,7 @@
 
 package com.formdev.flatlaf.ui;
 
+import java.awt.BasicStroke;
 import java.awt.Color;
 import java.awt.Component;
 import java.awt.Container;
@@ -30,6 +31,7 @@ import java.awt.KeyboardFocusManager;
 import java.awt.Rectangle;
 import java.awt.RenderingHints;
 import java.awt.Shape;
+import java.awt.Stroke;
 import java.awt.Window;
 import java.awt.event.FocusEvent;
 import java.awt.event.FocusListener;
@@ -44,6 +46,7 @@ import java.util.function.Supplier;
 import javax.swing.JComponent;
 import javax.swing.JTable;
 import javax.swing.LookAndFeel;
+import javax.swing.SwingConstants;
 import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import javax.swing.border.Border;
@@ -609,6 +612,111 @@ public class FlatUIUtils
 		return rect;
 	}
 
+	/**
+	 * Paints a chevron or triangle arrow in the center of the given rectangle.
+	 *
+	 * @param g the graphics context used for painting
+	 * @param x the x coordinate of the rectangle
+	 * @param y the y coordinate of the rectangle
+	 * @param width the width of the rectangle
+	 * @param height the height of the rectangle
+	 * @param direction the arrow direction ({@link SwingConstants#NORTH}, {@link SwingConstants#SOUTH}
+	 *        {@link SwingConstants#WEST} or {@link SwingConstants#EAST})
+	 * @param chevron {@code true} for chevron arrow, {@code false} for triangle arrow
+	 * @param arrowSize the width of the painted arrow (for vertical direction) (will be scaled)
+	 * @param xOffset a offset added to the x coordinate of the arrow to paint it out-of-center. Usually zero. (will be scaled)
+	 * @param yOffset a offset added to the y coordinate of the arrow to paint it out-of-center. Usually zero. (will be scaled)
+	 *
+	 * @since 1.1
+	 */
+	public static void paintArrow( Graphics2D g, int x, int y, int width, int height,
+		int direction, boolean chevron, int arrowSize, int xOffset, int yOffset )
+	{
+		// compute arrow width/height
+		int aw = UIScale.scale( arrowSize + (chevron ? 0 : 1) );
+		int ah = UIScale.scale( (arrowSize / 2) + (chevron ? 0 : 1) );
+
+		// rotate arrow width/height for horizontal directions
+		boolean vert = (direction == SwingConstants.NORTH || direction == SwingConstants.SOUTH);
+		if( !vert ) {
+			int temp = aw;
+			aw = ah;
+			ah = temp;
+		}
+
+		// chevron lines end 1px outside of width/height
+		// --> add 1px to arrow width/height for position calculation
+		int extra = chevron ? 1 : 0;
+
+		// compute arrow location
+		int ax = x + Math.round( ((width - (aw + extra)) / 2f) + UIScale.scale( (float) xOffset ) );
+		int ay = y + Math.round( ((height - (ah + extra)) / 2f) + UIScale.scale( (float) yOffset ) );
+
+		// paint arrow
+		g.translate( ax, ay );
+/*debug
+		debugPaintArrow( g, Color.red, vert, aw + extra, ah + extra );
+debug*/
+		Shape arrowShape = createArrowShape( direction, chevron, aw, ah );
+		if( chevron ) {
+			Stroke oldStroke = g.getStroke();
+			g.setStroke( new BasicStroke( UIScale.scale( 1f ) ) );
+			g.draw( arrowShape );
+			g.setStroke( oldStroke );
+		} else {
+			// triangle
+			g.fill( arrowShape );
+		}
+		g.translate( -ax, -ay );
+	}
+
+	/**
+	 * Creates a chevron or triangle arrow shape for the given direction and size.
+	 * <p>
+	 * The chevron shape is a open path that can be painted with {@link Graphics2D#draw(Shape)}.
+	 * The triangle shape is a close path that can be painted with {@link Graphics2D#fill(Shape)}.
+	 *
+	 * @param direction the arrow direction ({@link SwingConstants#NORTH}, {@link SwingConstants#SOUTH}
+	 *        {@link SwingConstants#WEST} or {@link SwingConstants#EAST})
+	 * @param chevron {@code true} for chevron arrow, {@code false} for triangle arrow
+	 * @param w the width of the returned shape
+	 * @param h the height of the returned shape
+	 *
+	 * @since 1.1
+	 */
+	public static Shape createArrowShape( int direction, boolean chevron, float w, float h ) {
+		switch( direction ) {
+			case SwingConstants.NORTH:	return createPath( !chevron, 0,h, (w / 2f),0, w,h );
+			case SwingConstants.SOUTH:	return createPath( !chevron, 0,0, (w / 2f),h, w,0 );
+			case SwingConstants.WEST:	return createPath( !chevron, w,0, 0,(h / 2f), w,h );
+			case SwingConstants.EAST:	return createPath( !chevron, 0,0, w,(h / 2f), 0,h );
+			default:					return new Path2D.Float();
+		}
+	}
+
+/*debug
+	private static void debugPaintArrow( Graphics2D g, Color color, boolean vert, int w, int h ) {
+		Color oldColor = g.getColor();
+		g.setColor( color );
+		g.fill( createRectangle( 0, 0, w, h, 1 ) );
+
+		int xy1 = -2;
+		int x2 = w + 1;
+		int y2 = h + 1;
+		for( int i = 0; i < 20; i++ ) {
+			g.fillRect( 0, xy1, 1, 1 );
+			g.fillRect( 0, y2, 1, 1 );
+			g.fillRect( xy1, 0, 1, 1 );
+			g.fillRect( x2, 0, 1, 1 );
+			xy1 -= 2;
+			x2 += 2;
+			y2 += 2;
+		}
+
+		g.setColor( oldColor );
+	}
+debug*/
+
 	/**
 	 * Creates a closed path for the given points.
 	 */

flatlaf-swingx/src/main/java/com/formdev/flatlaf/swingx/ui/FlatMonthDownIcon.java

@@ -24,7 +24,6 @@ import java.awt.Shape;
 import javax.swing.SwingConstants;
 import javax.swing.UIManager;
 import com.formdev.flatlaf.icons.FlatAbstractIcon;
-import com.formdev.flatlaf.ui.FlatArrowButton;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 
 /**
@@ -56,14 +55,14 @@ public class FlatMonthDownIcon
 
 	@Override
 	protected void paintIcon( Component c, Graphics2D g ) {
-		int h = chevron ? 4 : 5;
-		int w = chevron ? 8 : 9;
-		int x = Math.round( (width - h) / 2f );
-		int y = Math.round( (height - w) / 2f );
+		int w = chevron ? 4 : 5;
+		int h = chevron ? 8 : 9;
+		int x = Math.round( (width - w) / 2f );
+		int y = Math.round( (height - h) / 2f );
 
 		g.setColor( c.isEnabled() ? arrowColor : disabledArrowColor );
 		g.translate( x, y );
-		Shape arrowShape = FlatArrowButton.createArrowShape( direction, chevron, w, h );
+		Shape arrowShape = FlatUIUtils.createArrowShape( direction, chevron, w, h );
 		if( chevron ) {
 			// chevron arrow
 			g.setStroke( new BasicStroke( 1f ) );

flatlaf-swingx/src/main/java/com/formdev/flatlaf/swingx/ui/FlatTaskPaneUI.java

@@ -36,7 +36,6 @@ import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.UIResource;
 import org.jdesktop.swingx.JXTaskPane;
 import org.jdesktop.swingx.plaf.basic.BasicTaskPaneUI;
-import com.formdev.flatlaf.ui.FlatArrowButton;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 import com.formdev.flatlaf.util.UIScale;
 
@@ -223,7 +222,7 @@ public class FlatTaskPaneUI
 
 			// create arrow shape
 			int direction = group.isCollapsed() ? SwingConstants.SOUTH : SwingConstants.NORTH;
-			Shape arrowShape = FlatArrowButton.createArrowShape( direction, true, cw, ch );
+			Shape arrowShape = FlatUIUtils.createArrowShape( direction, true, cw, ch );
 
 			// fix position of controls
 			x = group.getComponentOrientation().isLeftToRight() ? (group.getWidth() - width - y) : y;

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

@@ -17,10 +17,14 @@
 package com.formdev.flatlaf.testing;
 
 import java.awt.Color;
+import java.awt.Container;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
 import javax.swing.*;
+import javax.swing.border.*;
+import com.formdev.flatlaf.ui.FlatArrowButton;
 import com.formdev.flatlaf.ui.FlatUIUtils;
 import com.formdev.flatlaf.util.HiDPIUtils;
 import com.formdev.flatlaf.util.UIScale;
@@ -43,6 +47,54 @@ public class FlatPaintingTest
 		initComponents();
 	}
 
+	@Override
+	public void updateUI() {
+		super.updateUI();
+
+		getHorizontalScrollBar().setUnitIncrement( UIScale.scale( 25 ) );
+		getVerticalScrollBar().setUnitIncrement( UIScale.scale( 25 ) );
+	}
+
+	private void arrowSizeChanged() {
+		int width = (int) arrowWidthSpinner.getValue();
+		int height = (int) arrowHeightSpinner.getValue();
+		int arrowSize = (int) arrowSizeSpinner.getValue();
+
+		FlatTestFrame.updateComponentsRecur( (Container) getViewport().getView(), (c, type) -> {
+			if( c instanceof ArrowPainter ) {
+				ArrowPainter painter = (ArrowPainter) c;
+				painter.setW( painter.isHalfWidth() ? width / 2 : width );
+				painter.setH( painter.isHalfHeight() ? height / 2 : height );
+				painter.setArrowSize( arrowSize );
+			}
+		} );
+
+		revalidate();
+		repaint();
+	}
+
+	private void vectorChanged() {
+		boolean vector = vectorCheckBox.isSelected();
+
+		FlatTestFrame.updateComponentsRecur( (Container) getViewport().getView(), (c, type) -> {
+			if( c instanceof ArrowPainter )
+				((ArrowPainter) c).vector = vector;
+		} );
+
+		repaint();
+	}
+
+	private void checkBox1ActionPerformed() {
+		boolean button = buttonCheckBox.isSelected();
+
+		FlatTestFrame.updateComponentsRecur( (Container) getViewport().getView(), (c, type) -> {
+			if( c instanceof ArrowPainter )
+				((ArrowPainter)c).button = button;
+		} );
+
+		repaint();
+	}
+
 	private void initComponents() {
 		// JFormDesigner - Component initialization - DO NOT MODIFY  //GEN-BEGIN:initComponents
 		FlatTestPanel flatTestPanel1 = new FlatTestPanel();
@@ -86,6 +138,35 @@ public class FlatPaintingTest
 		JLabel label5 = new JLabel();
 		JLabel label6 = new JLabel();
 		JLabel label7 = new JLabel();
+		FlatPaintingTest.ArrowPainter arrowPainter1 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter2 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter3 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter4 = new FlatPaintingTest.ArrowPainter();
+		JPanel panel1 = new JPanel();
+		FlatPaintingTest.ArrowPainter arrowPainter5 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter6 = new FlatPaintingTest.ArrowPainter();
+		JPanel panel2 = new JPanel();
+		FlatPaintingTest.ArrowPainter arrowPainter7 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter8 = new FlatPaintingTest.ArrowPainter();
+		JPanel panel5 = new JPanel();
+		JLabel arrowWidthLabel = new JLabel();
+		arrowWidthSpinner = new JSpinner();
+		JLabel arrowHeightLabel = new JLabel();
+		arrowHeightSpinner = new JSpinner();
+		JLabel arrowSizeLabel = new JLabel();
+		arrowSizeSpinner = new JSpinner();
+		vectorCheckBox = new JCheckBox();
+		buttonCheckBox = new JCheckBox();
+		FlatPaintingTest.ArrowPainter arrowPainter9 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter10 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter11 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter12 = new FlatPaintingTest.ArrowPainter();
+		JPanel panel3 = new JPanel();
+		FlatPaintingTest.ArrowPainter arrowPainter13 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter14 = new FlatPaintingTest.ArrowPainter();
+		JPanel panel4 = new JPanel();
+		FlatPaintingTest.ArrowPainter arrowPainter15 = new FlatPaintingTest.ArrowPainter();
+		FlatPaintingTest.ArrowPainter arrowPainter16 = new FlatPaintingTest.ArrowPainter();
 
 		//======== this ========
 		setBorder(null);
@@ -109,6 +190,8 @@ public class FlatPaintingTest
 				"[top]" +
 				"[top]" +
 				"[top]" +
+				"[]para" +
+				"[]" +
 				"[]"));
 
 			//---- borderPainter9 ----
@@ -360,15 +443,206 @@ public class FlatPaintingTest
 			//---- label7 ----
 			label7.setText("fw 1,  lw 3,  arc 3,2,1,0");
 			flatTestPanel1.add(label7, "cell 8 4");
+
+			//---- arrowPainter1 ----
+			arrowPainter1.setScale(8.0F);
+			flatTestPanel1.add(arrowPainter1, "cell 0 5,align left top,grow 0 0");
+
+			//---- arrowPainter2 ----
+			arrowPainter2.setScale(8.0F);
+			arrowPainter2.setDirection(1);
+			flatTestPanel1.add(arrowPainter2, "cell 1 5,align left top,grow 0 0");
+
+			//---- arrowPainter3 ----
+			arrowPainter3.setScale(8.0F);
+			arrowPainter3.setDirection(7);
+			flatTestPanel1.add(arrowPainter3, "cell 2 5,align left top,grow 0 0");
+
+			//---- arrowPainter4 ----
+			arrowPainter4.setScale(8.0F);
+			arrowPainter4.setDirection(3);
+			flatTestPanel1.add(arrowPainter4, "cell 3 5,align left top,grow 0 0");
+
+			//======== panel1 ========
+			{
+				panel1.setLayout(new BoxLayout(panel1, BoxLayout.Y_AXIS));
+
+				//---- arrowPainter5 ----
+				arrowPainter5.setScale(8.0F);
+				arrowPainter5.setDirection(1);
+				arrowPainter5.setH(10);
+				arrowPainter5.setHalfHeight(true);
+				arrowPainter5.setYOffset(1);
+				panel1.add(arrowPainter5);
+
+				//---- arrowPainter6 ----
+				arrowPainter6.setScale(8.0F);
+				arrowPainter6.setH(10);
+				arrowPainter6.setHalfHeight(true);
+				arrowPainter6.setYOffset(-1);
+				panel1.add(arrowPainter6);
+			}
+			flatTestPanel1.add(panel1, "cell 4 5,align left top,grow 0 0");
+
+			//======== panel2 ========
+			{
+				panel2.setLayout(new BoxLayout(panel2, BoxLayout.X_AXIS));
+
+				//---- arrowPainter7 ----
+				arrowPainter7.setScale(8.0F);
+				arrowPainter7.setDirection(7);
+				arrowPainter7.setW(10);
+				arrowPainter7.setHalfWidth(true);
+				arrowPainter7.setXOffset(1);
+				panel2.add(arrowPainter7);
+
+				//---- arrowPainter8 ----
+				arrowPainter8.setScale(8.0F);
+				arrowPainter8.setDirection(3);
+				arrowPainter8.setW(10);
+				arrowPainter8.setHalfWidth(true);
+				arrowPainter8.setXOffset(-1);
+				panel2.add(arrowPainter8);
+			}
+			flatTestPanel1.add(panel2, "cell 5 5,align left top,grow 0 0");
+
+			//======== panel5 ========
+			{
+				panel5.setBorder(new TitledBorder("Arrow Control"));
+				panel5.setLayout(new MigLayout(
+					"hidemode 3",
+					// columns
+					"[fill]" +
+					"[fill]",
+					// rows
+					"[]" +
+					"[]" +
+					"[]" +
+					"[]" +
+					"[]"));
+
+				//---- arrowWidthLabel ----
+				arrowWidthLabel.setText("Width:");
+				panel5.add(arrowWidthLabel, "cell 0 0");
+
+				//---- arrowWidthSpinner ----
+				arrowWidthSpinner.setModel(new SpinnerNumberModel(20, 0, null, 1));
+				arrowWidthSpinner.addChangeListener(e -> arrowSizeChanged());
+				panel5.add(arrowWidthSpinner, "cell 1 0");
+
+				//---- arrowHeightLabel ----
+				arrowHeightLabel.setText("Height:");
+				panel5.add(arrowHeightLabel, "cell 0 1");
+
+				//---- arrowHeightSpinner ----
+				arrowHeightSpinner.setModel(new SpinnerNumberModel(20, 0, null, 1));
+				arrowHeightSpinner.addChangeListener(e -> arrowSizeChanged());
+				panel5.add(arrowHeightSpinner, "cell 1 1");
+
+				//---- arrowSizeLabel ----
+				arrowSizeLabel.setText("Arrow Size:");
+				panel5.add(arrowSizeLabel, "cell 0 2");
+
+				//---- arrowSizeSpinner ----
+				arrowSizeSpinner.setModel(new SpinnerNumberModel(8, 2, null, 1));
+				arrowSizeSpinner.addChangeListener(e -> arrowSizeChanged());
+				panel5.add(arrowSizeSpinner, "cell 1 2");
+
+				//---- vectorCheckBox ----
+				vectorCheckBox.setText("vector");
+				vectorCheckBox.addActionListener(e -> vectorChanged());
+				panel5.add(vectorCheckBox, "cell 0 3 2 1,alignx left,growx 0");
+
+				//---- buttonCheckBox ----
+				buttonCheckBox.setText("FlatArrowButton");
+				buttonCheckBox.addActionListener(e -> checkBox1ActionPerformed());
+				panel5.add(buttonCheckBox, "cell 0 4 2 1,alignx left,growx 0");
+			}
+			flatTestPanel1.add(panel5, "cell 6 5,aligny top,growy 0");
+
+			//---- arrowPainter9 ----
+			arrowPainter9.setScale(8.0F);
+			arrowPainter9.setChevron(false);
+			flatTestPanel1.add(arrowPainter9, "cell 0 6,align left top,grow 0 0");
+
+			//---- arrowPainter10 ----
+			arrowPainter10.setScale(8.0F);
+			arrowPainter10.setDirection(1);
+			arrowPainter10.setChevron(false);
+			flatTestPanel1.add(arrowPainter10, "cell 1 6,align left top,grow 0 0");
+
+			//---- arrowPainter11 ----
+			arrowPainter11.setScale(8.0F);
+			arrowPainter11.setDirection(7);
+			arrowPainter11.setChevron(false);
+			flatTestPanel1.add(arrowPainter11, "cell 2 6,align left top,grow 0 0");
+
+			//---- arrowPainter12 ----
+			arrowPainter12.setScale(8.0F);
+			arrowPainter12.setDirection(3);
+			arrowPainter12.setChevron(false);
+			flatTestPanel1.add(arrowPainter12, "cell 3 6,align left top,grow 0 0");
+
+			//======== panel3 ========
+			{
+				panel3.setLayout(new BoxLayout(panel3, BoxLayout.Y_AXIS));
+
+				//---- arrowPainter13 ----
+				arrowPainter13.setScale(8.0F);
+				arrowPainter13.setDirection(1);
+				arrowPainter13.setH(10);
+				arrowPainter13.setChevron(false);
+				arrowPainter13.setHalfHeight(true);
+				arrowPainter13.setYOffset(1);
+				panel3.add(arrowPainter13);
+
+				//---- arrowPainter14 ----
+				arrowPainter14.setScale(8.0F);
+				arrowPainter14.setH(10);
+				arrowPainter14.setChevron(false);
+				arrowPainter14.setHalfHeight(true);
+				arrowPainter14.setYOffset(-1);
+				panel3.add(arrowPainter14);
+			}
+			flatTestPanel1.add(panel3, "cell 4 6,align left top,grow 0 0");
+
+			//======== panel4 ========
+			{
+				panel4.setLayout(new BoxLayout(panel4, BoxLayout.X_AXIS));
+
+				//---- arrowPainter15 ----
+				arrowPainter15.setScale(8.0F);
+				arrowPainter15.setDirection(7);
+				arrowPainter15.setW(10);
+				arrowPainter15.setChevron(false);
+				arrowPainter15.setHalfWidth(true);
+				arrowPainter15.setXOffset(1);
+				panel4.add(arrowPainter15);
+
+				//---- arrowPainter16 ----
+				arrowPainter16.setScale(8.0F);
+				arrowPainter16.setDirection(3);
+				arrowPainter16.setW(10);
+				arrowPainter16.setChevron(false);
+				arrowPainter16.setHalfWidth(true);
+				arrowPainter16.setXOffset(-1);
+				panel4.add(arrowPainter16);
+			}
+			flatTestPanel1.add(panel4, "cell 5 6,align left top,grow 0 0");
 		}
 		setViewportView(flatTestPanel1);
 		// JFormDesigner - End of component initialization  //GEN-END:initComponents
 	}
 
 	// JFormDesigner - Variables declaration - DO NOT MODIFY  //GEN-BEGIN:variables
+	private JSpinner arrowWidthSpinner;
+	private JSpinner arrowHeightSpinner;
+	private JSpinner arrowSizeSpinner;
+	private JCheckBox vectorCheckBox;
+	private JCheckBox buttonCheckBox;
 	// JFormDesigner - End of variables declaration  //GEN-END:variables
 
-	//---- class Preview ----
+	//---- class BorderPainter ------------------------------------------------
 
 	public static class BorderPainter
 		extends JComponent
@@ -507,4 +781,170 @@ public class FlatPaintingTest
 			FlatUIUtils.resetRenderingHints( g2, oldRenderingHints );
 		}
 	}
+
+	//---- class ArrowPainter -------------------------------------------------
+
+	public static class ArrowPainter
+		extends JComponent
+	{
+		private int w = 20;
+		private int h = 20;
+		private int direction = SwingConstants.SOUTH;
+		private boolean chevron = true;
+		private int arrowSize = FlatArrowButton.DEFAULT_ARROW_WIDTH;
+		private int xOffset = 0;
+		private int yOffset = 0;
+		private float scale = 1;
+		private boolean halfWidth;
+		private boolean halfHeight;
+		public boolean vector;
+		public boolean button;
+
+		public ArrowPainter() {
+		}
+
+		public int getW() {
+			return w;
+		}
+
+		public void setW( int w ) {
+			this.w = w;
+			invalidate();
+		}
+
+		public int getH() {
+			return h;
+		}
+
+		public void setH( int h ) {
+			this.h = h;
+			invalidate();
+		}
+
+		public int getDirection() {
+			return direction;
+		}
+
+		public void setDirection( int direction ) {
+			this.direction = direction;
+		}
+
+		public boolean isChevron() {
+			return chevron;
+		}
+
+		public void setChevron( boolean chevron ) {
+			this.chevron = chevron;
+		}
+
+		public int getArrowSize() {
+			return arrowSize;
+		}
+
+		public void setArrowSize( int arrowSize ) {
+			this.arrowSize = arrowSize;
+		}
+
+		public int getXOffset() {
+			return xOffset;
+		}
+
+		public void setXOffset( int xOffset ) {
+			this.xOffset = xOffset;
+		}
+
+		public int getYOffset() {
+			return yOffset;
+		}
+
+		public void setYOffset( int yOffset ) {
+			this.yOffset = yOffset;
+		}
+
+		public float getScale() {
+			return scale;
+		}
+
+		public void setScale( float scale ) {
+			this.scale = scale;
+		}
+
+		public boolean isHalfWidth() {
+			return halfWidth;
+		}
+
+		public void setHalfWidth( boolean halfWidth ) {
+			this.halfWidth = halfWidth;
+		}
+
+		public boolean isHalfHeight() {
+			return halfHeight;
+		}
+
+		public void setHalfHeight( boolean halfHeight ) {
+			this.halfHeight = halfHeight;
+		}
+
+		@Override
+		public Dimension getPreferredSize() {
+			return UIScale.scale( new Dimension( (int) (w * scale), (int) (h * scale) ) );
+		}
+
+		@Override
+		public Dimension getMinimumSize() {
+			return getPreferredSize();
+		}
+
+		@Override
+		protected void paintComponent( Graphics g ) {
+			Graphics2D g2 = (Graphics2D) g;
+			Object[] oldRenderingHints = FlatUIUtils.setRenderingHints( g2 );
+
+			g2.scale( scale, scale );
+
+			int width = UIScale.scale( w );
+			int height = UIScale.scale( h );
+
+			if( vector ) {
+				g.setColor( Color.blue );
+				paintArrow( g2, width, height );
+			} else {
+				BufferedImage bi = new BufferedImage( width, height, BufferedImage.TYPE_INT_ARGB );
+				Graphics bg = bi.createGraphics();
+				try {
+					FlatUIUtils.setRenderingHints( bg );
+
+					bg.setColor( Color.blue );
+					paintArrow( (Graphics2D) bg, width, height );
+				} finally {
+					bg.dispose();
+				}
+
+				g.drawImage( bi, 0, 0, width, height, null );
+			}
+
+			HiDPIUtils.paintAtScale1x( g2, 0, 0, width, height,
+				(g2d, x2, y2, width2, height2, scaleFactor) -> {
+					g2d.setColor( Color.magenta );
+					g2d.drawRect( x2, y2, width2 - 1, height2 - 1 );
+				} );
+
+			FlatUIUtils.resetRenderingHints( g2, oldRenderingHints );
+		}
+
+		private void paintArrow( Graphics2D g, int width, int height ) {
+			FlatUIUtils.paintArrow( g, 0, 0, width, height,
+				direction, chevron, arrowSize, xOffset, yOffset );
+
+			if( button ) {
+				FlatArrowButton arrowButton = new FlatArrowButton( direction,
+					chevron ? null : "triangle", Color.black, null, null, null, null, null );
+				arrowButton.setArrowWidth( arrowSize );
+				arrowButton.setXOffset( xOffset );
+				arrowButton.setYOffset( yOffset );
+				arrowButton.setSize( width, height );
+				arrowButton.paint( g );
+			}
+		}
+	}
 }

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

@@ -1,4 +1,4 @@
-JFDML JFormDesigner: "7.0.2.0.298" Java: "15" encoding: "UTF-8"
+JFDML JFormDesigner: "7.0.3.1.342" Java: "15" encoding: "UTF-8"
 
 new FormModel {
 	contentType: "form/swing"
@@ -12,7 +12,7 @@ new FormModel {
 			add( new FormContainer( "com.formdev.flatlaf.testing.FlatTestPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
 				"$layoutConstraints": "ltr,insets dialog,hidemode 3"
 				"$columnConstraints": "[fill][fill][fill][fill][fill][fill][fill][fill][fill]"
-				"$rowConstraints": "[top][top][top][top][]"
+				"$rowConstraints": "[top][top][top][top][]para[][]"
 			} ) {
 				name: "flatTestPanel1"
 				add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$BorderPainter" ) {
@@ -345,10 +345,245 @@ new FormModel {
 				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 					"value": "cell 8 4"
 				} )
+				add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+					name: "arrowPainter1"
+					"scale": 8.0f
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 0 5,align left top,grow 0 0"
+				} )
+				add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+					name: "arrowPainter2"
+					"scale": 8.0f
+					"direction": 1
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 1 5,align left top,grow 0 0"
+				} )
+				add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+					name: "arrowPainter3"
+					"scale": 8.0f
+					"direction": 7
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 2 5,align left top,grow 0 0"
+				} )
+				add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+					name: "arrowPainter4"
+					"scale": 8.0f
+					"direction": 3
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 3 5,align left top,grow 0 0"
+				} )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class javax.swing.BoxLayout ) {
+					"axis": 1
+				} ) {
+					name: "panel1"
+					add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+						name: "arrowPainter5"
+						"scale": 8.0f
+						"direction": 1
+						"h": 10
+						"halfHeight": true
+						"YOffset": 1
+					} )
+					add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+						name: "arrowPainter6"
+						"scale": 8.0f
+						"h": 10
+						"halfHeight": true
+						"YOffset": -1
+					} )
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 4 5,align left top,grow 0 0"
+				} )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class javax.swing.BoxLayout ) ) {
+					name: "panel2"
+					add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+						name: "arrowPainter7"
+						"scale": 8.0f
+						"direction": 7
+						"w": 10
+						"halfWidth": true
+						"XOffset": 1
+					} )
+					add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+						name: "arrowPainter8"
+						"scale": 8.0f
+						"direction": 3
+						"w": 10
+						"halfWidth": true
+						"XOffset": -1
+					} )
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 5 5,align left top,grow 0 0"
+				} )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
+					"$layoutConstraints": "hidemode 3"
+					"$columnConstraints": "[fill][fill]"
+					"$rowConstraints": "[][][][][]"
+				} ) {
+					name: "panel5"
+					"border": new javax.swing.border.TitledBorder( "Arrow Control" )
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "arrowWidthLabel"
+						"text": "Width:"
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 0 0"
+					} )
+					add( new FormComponent( "javax.swing.JSpinner" ) {
+						name: "arrowWidthSpinner"
+						"model": new javax.swing.SpinnerNumberModel {
+							minimum: 0
+							value: 20
+						}
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "javax.swing.event.ChangeListener", "stateChanged", "arrowSizeChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 1 0"
+					} )
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "arrowHeightLabel"
+						"text": "Height:"
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 0 1"
+					} )
+					add( new FormComponent( "javax.swing.JSpinner" ) {
+						name: "arrowHeightSpinner"
+						"model": new javax.swing.SpinnerNumberModel {
+							minimum: 0
+							value: 20
+						}
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "javax.swing.event.ChangeListener", "stateChanged", "arrowSizeChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 1 1"
+					} )
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "arrowSizeLabel"
+						"text": "Arrow Size:"
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 0 2"
+					} )
+					add( new FormComponent( "javax.swing.JSpinner" ) {
+						name: "arrowSizeSpinner"
+						"model": new javax.swing.SpinnerNumberModel {
+							minimum: 2
+							value: 8
+						}
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "javax.swing.event.ChangeListener", "stateChanged", "arrowSizeChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 1 2"
+					} )
+					add( new FormComponent( "javax.swing.JCheckBox" ) {
+						name: "vectorCheckBox"
+						"text": "vector"
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "vectorChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 0 3 2 1,alignx left,growx 0"
+					} )
+					add( new FormComponent( "javax.swing.JCheckBox" ) {
+						name: "buttonCheckBox"
+						"text": "FlatArrowButton"
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "checkBox1ActionPerformed", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 0 4 2 1,alignx left,growx 0"
+					} )
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 6 5,aligny top,growy 0"
+				} )
+				add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+					name: "arrowPainter9"
+					"scale": 8.0f
+					"chevron": false
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 0 6,align left top,grow 0 0"
+				} )
+				add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+					name: "arrowPainter10"
+					"scale": 8.0f
+					"direction": 1
+					"chevron": false
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 1 6,align left top,grow 0 0"
+				} )
+				add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+					name: "arrowPainter11"
+					"scale": 8.0f
+					"direction": 7
+					"chevron": false
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 2 6,align left top,grow 0 0"
+				} )
+				add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+					name: "arrowPainter12"
+					"scale": 8.0f
+					"direction": 3
+					"chevron": false
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 3 6,align left top,grow 0 0"
+				} )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class javax.swing.BoxLayout ) {
+					"axis": 1
+				} ) {
+					name: "panel3"
+					add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+						name: "arrowPainter13"
+						"scale": 8.0f
+						"direction": 1
+						"h": 10
+						"chevron": false
+						"halfHeight": true
+						"YOffset": 1
+					} )
+					add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+						name: "arrowPainter14"
+						"scale": 8.0f
+						"h": 10
+						"chevron": false
+						"halfHeight": true
+						"YOffset": -1
+					} )
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 4 6,align left top,grow 0 0"
+				} )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class javax.swing.BoxLayout ) ) {
+					name: "panel4"
+					add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+						name: "arrowPainter15"
+						"scale": 8.0f
+						"direction": 7
+						"w": 10
+						"chevron": false
+						"halfWidth": true
+						"XOffset": 1
+					} )
+					add( new FormComponent( "com.formdev.flatlaf.testing.FlatPaintingTest$ArrowPainter" ) {
+						name: "arrowPainter16"
+						"scale": 8.0f
+						"direction": 3
+						"w": 10
+						"chevron": false
+						"halfWidth": true
+						"XOffset": -1
+					} )
+				}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+					"value": "cell 5 6,align left top,grow 0 0"
+				} )
 			} )
 		}, new FormLayoutConstraints( null ) {
 			"location": new java.awt.Point( 0, 0 )
-			"size": new java.awt.Dimension( 1610, 880 )
+			"size": new java.awt.Dimension( 1610, 1160 )
 		} )
 	}
 }