Lab 2010 #07

import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;
import java.util.*;
import javax.swing.Timer;
import java.awt.event.*;
import java.awt.GradientPaint;
 
public class Lab_20100412 extends JPanel
{
	public static void main(String[] argv)
	{
		new Lab_20100412();
	}
 
	//ATTRIBUTI
	public GregorianCalendar gc = null;
 
	int h = 0; //ore
	int m = 0; //minuti
	int s = 0; //secondi
	double sanalog = 0; //secondi orologio analogico
 
	Timer t = null;
 
	JButton startstop = null;
	JButton analogicodigitale = null;
 
	boolean digitale = false;
 
	//boolean active = false;
 
	//COSTRUTTORE 
	public Lab_20100412()
	{
		startstop = new JButton("stop");
		analogicodigitale = new JButton("digitale");
 
		setPreferredSize( new Dimension(600, 600) );
 
		JFrame f = new JFrame("Orologio");
		f.getContentPane().setLayout(new BorderLayout());
		f.getContentPane().add(this, BorderLayout.CENTER); //inserimento quadrante orologio
		f.getContentPane().add(startstop, BorderLayout.SOUTH); //Inserimento bottone in basso nel frame
		f.getContentPane().add(analogicodigitale, BorderLayout.NORTH);
		f.pack();
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		f.setVisible(true);
 
		t = new Timer(1000, new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				gc = new GregorianCalendar();
				sanalog = gc.get(Calendar.SECOND) + (gc.get(Calendar.MINUTE)*60) + (gc.get(Calendar.HOUR)*60*60);
 
				s = gc.get(Calendar.SECOND);
				m = gc.get(Calendar.MINUTE);
				h = gc.get(Calendar.HOUR);
 
				repaint();
			}
		});
 
		t.start();
 
		startstop.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				if (!t.isRunning())
				{
					t.start();
					startstop.setLabel("stop");
				}
				else
				{
					t.stop();
					startstop.setLabel("start");					
				}
				repaint();
			}
		});
 
 
		analogicodigitale.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				digitale = !digitale;
				repaint();
			}
		});
	}
 
	public void paint(Graphics _g)
	{
		Graphics2D g = (Graphics2D)_g;
 
		paintComponent(g);
		g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
 
		if (!digitale)
		{
			int span = 50;
			int rqx = getWidth()/2;
			int rqy = getHeight()/2;
 
			Ellipse2D quadrante = new Ellipse2D.Double(span, span, rqx*2-span*2, rqy*2-span*2);
 
			GradientPaint gp = new GradientPaint(new Point(0, span), Color.GRAY, new Point(0, rqy*2-span*2), Color.WHITE);
 
			g.setPaint(gp);
			g.fill(quadrante);
 
			for (int i=0; i<12*5; i++)
			{
				int length = 30;
				if (i%5==0)
				{
					length = 50;
					g.setStroke(new BasicStroke(3));
					g.setColor(Color.RED);
				}
				else
				{
					length = 30;
					g.setStroke(new BasicStroke(1));
					g.setColor(Color.BLACK);
				}
 
				double angle = (2*Math.PI/(12*5))*i;
				double scr = Math.PI/2;
 
				Line2D tick = new Line2D.Double(
					(rqx-span-length)*Math.cos(angle-scr)+getWidth()/2,
					(rqy-span-length)*Math.sin(angle-scr)+getHeight()/2,
					(rqx-span)*Math.cos(angle-scr)+getWidth()/2,
					(rqy-span)*Math.sin(angle-scr)+getHeight()/2);
 
				g.draw(tick);
			}
 
			g.setColor(Color.BLACK);
			g.setStroke(new BasicStroke(3));
			g.draw(quadrante);
 
			int cx = getWidth()/2;
			int cy = getHeight()/2;
 
			double rads = 2*Math.PI/60*sanalog;
			double radm = 2*Math.PI/(60*60)*sanalog;
			double radh = 2*Math.PI/(60*60*12)*sanalog;
 
			double scr = Math.PI/2;
 
			Line2D secondi = new Line2D.Double(cx,	cy,	cx+Math.cos(rads-scr)*(rqx-span-20), cy+Math.sin(rads-scr)*(rqy-span-20));
			Line2D minuti = new Line2D.Double(cx, cy, cx+Math.cos(radm-scr)*(rqx-span-40), cy+Math.sin(radm-scr)*(rqy-span-40));
			Line2D ore = new Line2D.Double(cx, cy, cx+Math.cos(radh-scr)*(rqx-span-60), cy+Math.sin(radh-scr)*(rqy-span-60));
 
			g.setColor(Color.GREEN);
			g.setStroke(new BasicStroke(7, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
			g.draw(ore);
			g.setColor(Color.BLUE);
			g.setStroke(new BasicStroke(5, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
			g.draw(minuti);
			g.setColor(Color.RED);
			g.setStroke(new BasicStroke(3, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
			g.draw(secondi);
 
			g.setColor(Color.YELLOW);
			g.fill( new Ellipse2D.Double(getWidth()/2-20, getHeight()/2-20, 40, 40) );
		}
		else
		{
			g.setColor(Color.RED);
			g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 120));
			g.drawString(""+h+":"+m, 50, 150);
			g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 70));
			g.drawString(":"+s, 400, 150);
		}
	}
}