import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.io.IOException;

import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;

import javafx.application.Platform;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.paint.Color; 

/** 
 * 
 */ 
public class ImprovedGraphicsExample { 
	private JFrame frame; 

	private ImprovedGraphicsExample() { 
		ImprovedJFXPanel p = new ImprovedJFXPanel(); 
		frame = createFrame("Improved rendering for JFXPanel", p, 360, 250); 

		Platform.runLater(new Runnable() { 
			@Override 
			public void run() { 
				p.init(); 
			} 
		}); 
	} 

	private JFrame createFrame(String title, JComponent component, int width, int height) { 
		final Dimension dimension = new Dimension(width, height); 
		JFrame frame = new JFrame(); 
		frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); 
		frame.setPreferredSize(dimension); 
		frame.setSize(dimension); 
		frame.add(component); 
		frame.setTitle(title); 

		frame.pack(); 

		return frame; 
	} 

	private void show() { 
		frame.setVisible(true); 
	} 

	public static void main(String[] args) throws IOException, InterruptedException { 
		ImprovedGraphicsExample app = new ImprovedGraphicsExample(); 
		SwingUtilities.invokeLater(app::show); 
	} 

	/////////////////////////////////////// 

	private class ImprovedJFXPanel extends JFXPanel { 
		/**
		 * 
		 */
		private static final long serialVersionUID = 1L;
		private final double internalScale = 1; 
		private Canvas canvas; 

		ImprovedJFXPanel() { 
		} 

		void init() { 
			Scene scene = createScene(); 
			setScene(scene); 
		} 

		private Scene createScene() { 
			canvas = new Canvas(); 
			canvas.setWidth(getWidth()); 
			canvas.setHeight(getHeight()); 
			scaleCanvas(); 

			Group root = new Group(); 
			root.getChildren().add(canvas); 
			drawLine(); 

			return new Scene(root); 
		} 

		private void drawLine() { 
			GraphicsContext graphicsContext = canvas.getGraphicsContext2D(); 
			graphicsContext.save(); 

			graphicsContext.translate(canvas.getWidth() / 2, canvas.getHeight() / 2); 
			graphicsContext.setStroke(Color.BLACK); 
			graphicsContext.setLineWidth(1.2); 

			double x1 = 0; 
			double y1 = -40; 
			int count = 6; 
			for (int i = 0; i < count; i++) { 
				double d = 2.2 * i; 
				double x2 = 60 * Math.cos(d * Math.PI/(2 * count)); 
				double y2 = 60 * Math.sin(d * Math.PI/(2 * count)); 
				graphicsContext.strokeLine(x1, y1, x2, y2); 
			} 

			graphicsContext.restore(); 
		} 


		@Override 
		public void paintComponent(Graphics g) { 
			double s = 1 / internalScale; 
			// scale-down what was scaled-up in FX graphics 
			((Graphics2D) g).scale(s, s); 
			super.paintComponent(g); 
		} 

		// scale up canvas for FX 
		private void scaleCanvas() { 
			canvas.setScaleX(internalScale); 
			canvas.setScaleY(internalScale); 
		} 

	} 
}