import java.awt.*;
import java.applet.*;
import java.net.URL;

public class Anastasia extends java.applet.Applet
{   String s;

	Image[] symbol;
	String[] symfile = {"treble-staff-tr.GIF","bass-staff-tr.GIF", "barline-tr.gif",
		"wholenote-tr.gif", "halfnote-tr.gif", "qtrnote-tr.gif", "8thnote-tr.gif",
		"wh-half-rest-tr.gif", "qtrrest-tr.gif", "8threst-tr.gif", "dot-tr.gif"};
	String[] symId = {"treble","bass","bar","wn","hn","qn","en","hr","qr","er","dot"};

	// these offsets have to be determined experimentally for each GIF.  They are the values added to the
	// X and Y coordinates relative to the Treble staff position to make the shape fit in the bottom space
	// of the treble staff ("F"), or to properly align the symbol in its default position.
	int[] xOffset = {0, 5,    30,  30,  30,  30,  30,  30,  30,  30, 43};
	int[] yOffset = {0, 80, 27, 48, 27, 27, 27, 33, 27, 33, 52};

	int numImages;

	public void init()
	{
		// load images
		numImages = symfile.length;
		symbol = new Image[numImages];

		URL url = getCodeBase();

		for (int ix=0; ix < numImages; ix++)
		{
		    symbol[ ix ] = getImage (url, symfile[ix]);
		}
		
		MediaTracker mt = new MediaTracker (this);


		for (int ix=0; ix < numImages; ix++)
		{
			mt.addImage (symbol[ix], ix);		
		}
		try 
		{	mt.waitForAll();
		} 
		catch (Exception e) 
		{	System.err.println(e);
		}
		// test to see if any files didn't load:

		for (int ix=0; ix < numImages; ix++)
		{
		    if (symbol[ix].getHeight(this) < 0)
		    {
			System.err.println ("Image file empty: "+symfile[ix]);
		    }
		}
	}


    public void drawSym (Graphics g, String symbolId, int x, int y)
    {
	for (int ix=0; ix < numImages; ix++)
	{
	    if (symbolId == symId[ix])
	    {
		g.drawImage(symbol[ix], x + xOffset[ix], y + yOffset[ix], this);
	    }
	}
    }

    public void paint(Graphics g)
    {   
	int trebleX = 10, trebleY = 10;

	g.setColor(Color.white);
	g.fillRect(0,0,800,300);

	g.setColor(Color.black);

	drawSym (g, "treble", trebleX, trebleY);
	drawSym (g, "bass", trebleX, trebleY);

	drawSym (g, "wn", trebleX+10, trebleY);
	drawSym (g, "hn", trebleX+30, trebleY);	
	drawSym (g, "qn", trebleX+50, trebleY);	
	drawSym (g, "en", trebleX+70, trebleY);	
	drawSym (g, "hr", trebleX+90, trebleY-3);	// to make a whole rest
	drawSym (g, "hr", trebleX+110, trebleY);	
	drawSym (g, "qr", trebleX+130, trebleY);	
	drawSym (g, "er", trebleX+150, trebleY);	
	drawSym (g, "hn", trebleX+170, trebleY);	
	drawSym (g, "dot",trebleX+170, trebleY);	

	drawSym (g, "bar", trebleX+190, trebleY);
    }
}