MousePath w/ Tabs

import java.awt.BorderLayout;import java.awt.Frame;import java.awt.GraphicsDevice;import java.awt.GraphicsEnvironment;import java.awt.MouseInfo;import java.awt.Point;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import processing.core.PApplet;public class MousePath extends PApplet {	public static void main(String args[]) {		Frame f = new Frame("Mouse Path. [S] Save. [R] Restart. © Anatoly Zenkov (anatolyzenkov.com)");		GraphicsEnvironment e = GraphicsEnvironment.getLocalGraphicsEnvironme nt();		GraphicsDevice s = e.getDefaultScreenDevice();		float scale = Math.min(s.getDisplayMode().getWidth(), 1280) / (float) s.getDisplayMode().getWidth();		f.setSize((int) (s.getDisplayMode().getWidth() * scale), (int) (s.getDisplayMode().getHeight() * scale));		f.addWindowListener(new WindowAdapter() {			public void windowClosing(WindowEvent we) {				System.exit(0);			}		});		f.setResizable(false);		f.setVisible(true);		f.setLayout(new BorderLayout());		MousePath p = new MousePath();		f.add(p, BorderLayout.CENTER);		p.init();	}	private float _scale;	private float _radius;	private Point _prevP;	private Point _newP;	private Point _stopP;	public MousePath() {		this.start();	}	public void setup() {		GraphicsEnvironment e = GraphicsEnvironment.getLocalGraphicsEnvironme nt();		GraphicsDevice s = e.getDefaultScreenDevice();		_scale = Math.min(s.getDisplayMode().getWidth(), 1280) / (float) s.getDisplayMode().getWidth();		;		size((int) (s.getDisplayMode().getWidth() * _scale), (int) (s.getDisplayMode().getHeight() * _scale));		_newP = MouseInfo.getPointerInfo().getLocation();		_prevP = _newP;		_stopP = _newP;		strokeWeight(.2f);		frameRate(60);		smooth();		background(255);	}	public void draw() {		_newP = MouseInfo.getPointerInfo().getLocation();		line(_newP.x * _scale, _newP.y * _scale, _prevP.x * _scale, _prevP.y * _scale);		int dx = _newP.x - _stopP.x;		int dy = _newP.y - _stopP.y;		int d = dx * dx + dy * dy;		if (d 20) {			fill(255, 200f * max(0f, 1f - sqrt(_radius) / 20));			ellipse(_stopP.x * _scale, _stopP.y * _scale, _radius * .5f, _radius * .5f);			fill(0);			ellipse(_stopP.x * _scale, _stopP.y * _scale, sqrt(_radius), sqrt(_radius));			noFill();		}		_prevP = _newP;		_stopP = _newP;		_radius = 0;	}	public void keyReleased() {		if (key == 's' || key == 'S') {			String n = nf(hour(), 2) + "_" + nf(minute(), 2) + "_" + nf(second(), 2);			save("mousePath-" + n + ".tif");			status("Saved to 'mousePath_" + n + ".tif'");			return;		}		if (key == 'r' || key == 'R') {			background(255);		}	}	private static final long serialVersionUID = 1L;}