// Glow buttons - the name says it all

// Amit C. (ConnectSoft Ruksun, Pune, India) amit@maverick.corus.co.in



import java.awt.Color ;

import java.awt.Graphics;

import java.util.Date;

import java.lang.String ;

import java.util.StringTokenizer;



public class glowbutton extends java.applet.Applet implements Runnable 

{

	Thread	GlowThread ;

	int		i = 0 ;

	Color	GlowColor1 = new Color(0,0,0);

	Color	GlowColor2= new Color(0,0,0);

	Color	GlowColor3 = new Color(0,0,0);



	public void init() 

	{

									// The glowing colors

		GlowColor1 = StringToColor (

	   						MygetStringParam("glowcolor1", "0,0,0"), 

							Color.cyan ) ;



		GlowColor2 = StringToColor (

	   						MygetStringParam("glowcolor2", "0,0,0"), 

							Color.darkGray ) ;



		GlowColor3 = StringToColor (

	   						MygetStringParam("glowcolor3", "0,0,0"), 

							Color.magenta ) ;

	}

    public void start() 

	{

		if (GlowThread == null) 

		{

	    	GlowThread = new Thread(this, "Glow");

	    	GlowThread.start();

		}

    }



    public void run() 

	{

		while (GlowThread != null) 

		{

	    	repaint();

	    	try 

			{

				GlowThread.sleep(200);			// Sleep for 800 millisec

	    	} 

			catch (InterruptedException e)

			{

	    	}

		}

    }



    public void paint(Graphics g) 

	{

		g.setColor (Color.black ) ;	

		g.drawRect (0, 0, size().width - 1, size().height - 1 ) ;



		g.setColor (Color.gray ) ;	

		g.drawRect (1, 1, size().width - 2, size().height - 2 ) ;

		g.drawRect (2, 2, size().width - 3, size().height - 3 ) ;





		if ( i == 0 )				// What color to fill in with!

			g.setColor (GlowColor1 ) ;	

		else

			if (i == 1 )

				g.setColor (GlowColor2 ) ;	

			else

				g.setColor (GlowColor3 ) ;	



		g.fillRect (3, 3, size().width - 4, size().height - 4 ) ;

		i = i+ 1 ;

		i = i % 3 ;

	}



    public void stop() 

	{

		GlowThread.stop();

		GlowThread = null;

    }



	// A changed version of getparam

	public	String	MygetStringParam (String att, String def) 

	{

		String ret;



		try 

		{

			ret = getParameter(att);

			if (ret.length() < 1)

				return def;

			else

				return ret;

		} 

		catch(Exception e) 

		{

			return def;

		}

	}   



	// Given a string parses it to get the colors  

	public Color StringToColor (String strColor_p, Color clrDefault_p ) 

	{

		if (strColor_p.length ( ) == 0) 

		{ 

			return clrDefault_p ;

		}



		int r;

		int g;

		int b;

										// Delimiter is ','

		StringTokenizer st = new StringTokenizer (strColor_p, ",") ;



		try 

		{

			r = Integer.valueOf(st.nextToken()).intValue();

			g = Integer.valueOf(st.nextToken()).intValue();

			b = Integer.valueOf(st.nextToken()).intValue();

			return new Color(r,g,b);

		}

		catch (Exception e) 

		{

			return clrDefault_p;

		}

	}



}