// Graffiti.java
// www.seb.cc
//

import java.applet.*;
import java.net.*;
import java.awt.*;
import java.io.*;
import java.awt.image.*;

public class Graffiti extends Applet {
	private Dimension appletsize;
	private Image gui_image;
	private Image[] images;
	private Image buffer;
	private MediaTracker loader;
	private TextField name;
	private AppletContext browser;
	private Font font;
	private Graphics g;
	// State
	private boolean sketching;
	private int currentimage=0;
	private int currentbrush=2;
	private int brushsize=32;
	
	public void init() {
		int i;
		int numimgs=0;
		// Get Applet & Browser Parameters
		browser=getAppletContext();
		this.setBackground(Color.black);
		this.setForeground(Color.white);
		// Load font
		font=new Font("Helvetica",Font.BOLD,14);
		// Create off screen buffer
		appletsize=size();
		buffer=createImage(appletsize.width,appletsize.height);
		g=buffer.getGraphics();
		g.setFont(font);
		g.setColor(Color.black);
		g.drawString("loading images, please wait...",20,20);
		this.getGraphics().drawImage(buffer,0,0,this);
		repaint();
		// Read images parameters, and preload images
		for (i=0; getParameter("Img"+i)!=null ; i++) numimgs++;
		loader = new MediaTracker(this);   
		images=new Image[numimgs];
		for (i=0; i<numimgs; i++) {
			images[i]=getImage(getDocumentBase(),getParameter("Img"+i));
			loader.addImage(images[i],0);
		}
		gui_image= getImage(getDocumentBase(),"gui.gif");
		loader.addImage(gui_image, 0);
		// Wait for all images to load		
		try { loader.waitForAll(); }
		catch (InterruptedException e) { return; }

		sketching=false;
		g=buffer.getGraphics();
		g.drawImage(gui_image,0,0,this);
		paintGUI(g);
		repaint();
	}
	
	public void update(Graphics g)
	{
    	paint(g);
    }

	public void paint(Graphics g) {
		g.drawImage(buffer,0,0,this);
	}

	public void paintGUI(Graphics g) {
		g.clipRect(0,0,720,77);
		g.drawImage(gui_image,0,0,this);
		g.setColor(Color.red);
		g.drawRect(49*currentimage+417,21,40,40);
		g.drawRect(44*currentbrush+249,25,32,32);
	}
	
	public boolean mouseDown(Event e,int x, int y)
	{	
		g=buffer.getGraphics();
		if (y>=77) {
			sketching=true;
			g.clipRect(x-brushsize/2,y-brushsize/2,brushsize,brushsize);
			g.drawImage(images[currentimage],0,60,this);
			paintGUI(g);
			repaint();	
		} else {
			if ( (x>=652) && (x<=720)) {
				URL seb=null;
				try{ seb=new URL("http://www.seb.cc"); }
				catch (MalformedURLException ex) {;}
				this.getAppletContext().showDocument(seb);
				return true;
			}
			if ( (x>=400) && (x<=570)) {
				currentimage=Math.round((x-402)/58);
				paintGUI(g);
				repaint();
				return true;			
			}
			if ( (x>=248) && (x<=374) ) {
				currentbrush=Math.round((x-248)/40);
				brushsize=(currentbrush+1)*16;
				paintGUI(g);
				repaint();
				return true;			
			}
		}
		return true;					
	}

	public boolean mouseDrag(Event e,int x, int y)
	{
		g=buffer.getGraphics();
		if (y>77+brushsize/2) {
			g.clipRect(x-brushsize/2,y-brushsize/2,brushsize,brushsize);
			g.drawImage(images[currentimage],0,77,this);
			repaint();	
		} else {
			g.clipRect(x-brushsize/2,y-brushsize/2,brushsize,brushsize);
			g.drawImage(images[currentimage],0,77,this);
			paintGUI(g);
			repaint();	
		}
		return true;
	}

	public boolean mouseUp(Event e, int x,int y)
	{
		sketching=false;
		return true;
	}



}