import java.awt.*;
import javax.swing.*;

/*
 * A sample implementation of a panel that draws the chart. Extend this
 * class with drawing logic or use your own layouts and components.
 */
public class ChartPanel extends JPanel {
	public int[][] dataArray;
	public int dim2; //# of data points
	public int w; 

    public void paintComponent(Graphics gl) {
    	Graphics2D g = (Graphics2D) gl;
    	
    	//the Background part - Just draw once perhaps
    	g.setColor(new Color(222, 222, 222));
        g.fillRect(0, 0, this.getWidth(), this.getHeight());
        g.setColor(new Color(250, 0, 0));
        g.drawLine(10, 10, 10, 310); //max y-axis of 300
        g.drawLine(10, 310, dim2*50+10, 310); //variable x-axis
        g.drawString("100ms", 2, 210);
        g.drawString("200ms", 2, 110);
        g.drawString("300ms", 2, 10);
        
        //the update part
        if(w<dim2 && dataArray!=null){ //still skeleton/ not finished
    		for(int j=0;j<dataArray.length;j++) {
    			for(int k=dataArray[j].length-w; k<dataArray[j].length; k++){
    				g.drawLine(50*(dim2-w)+10, dataArray[j][k-1], 50*(dim2-w)+100, dataArray[j][k]);
    			}
    		}
    	}
    }

//Failed attemps    
//    public void paintComponent(Graphics gl) {
//    	Graphics2D g = (Graphics2D) gl;
//    	super.paintComponent(g);
//        g.setColor(new Color(222, 222, 222));
//        g.fillRect(0, 0, this.getWidth(), this.getHeight());
//        g.setColor(new Color(250, 0, 0));
//        g.drawLine(10, 10, 10, 310);
//        g.drawLine(10, 310, dim2*50+10, 310);
//        g.drawString("100ms", 2, 210);
//        g.drawString("200ms", 2, 110);
//        g.drawString("300ms", 2, 10);
//        
//        if(w<dim2 && dataArray!=null){
//    		for(int j=0;j<dataArray.length;j++) {
//    			for(int k=dataArray[j].length-w; k<dataArray[j].length; k++){
//    				g.drawLine(50*(dim2-w)+10, dataArray[j][k-1], 50*(dim2-w)+100, dataArray[j][k]);
//    			}
//    		}
//    	}
//    }

//    public void paint(Graphics gl) {
//    	Graphics2D g = (Graphics2D) gl;
//    	g.setColor(new Color(222, 222, 222));
//    	g.fillRect(0, 0, this.getWidth(), this.getHeight());
//    	g.setColor(new Color(250, 0, 0));
//    	g.drawLine(10, 10, 10, 310);
//    	g.drawLine(10, 310, dim2*50+10, 310);
//    	g.drawString("100ms", 2, 210);
//    	g.drawString("200ms", 2, 110);
//    	g.drawString("300ms", 2, 10);
//    }
//    public void update(Graphics gl) {
//    	Graphics2D g = (Graphics2D) gl;
//       	if(w<dim2){
//    		for(int j=0;j<dataArray.length;j++) {
//    			for(int k=dataArray[j].length-w; k<dataArray[j].length; k++){
//    				g.drawLine(50*(dim2-w)+10, dataArray[j][k-1], 50*(dim2-w)+100, dataArray[j][k]);
//    			}
//    		}
//    	}
//    }
}