import java.applet.Applet;
import java.awt.*;
import java.net.*;
import java.io.*;
import java.util.*;

class StatsGraph extends Canvas {

	double max_mflops = 0.0;

	Vector data_list = new Vector(10);

	boolean couldnt_load = false;

    double mflops_result = 0.0;
    double residn_result = 0.0;
    double time_result = 0.0;
    double eps_result = 0.0;


    void load_graph() {

String temp = 
"\"scale\" 0 \"scale\" 1.3\n \"1\"     3 \"JIT Intel P6/200\"    13.733\n \"2\"     1 \"JIT Intel P6/200\"    11.444\n \"3\"     4 \"JIT Intel P6/200\"    8.583\n \"4\"     2 \"JIT Intel P6/200\"    7.63\n \"5\"     6 \"JIT Intel P5/120\"    6.242\n \"6\"     5 \"JIT Intel P5/133\"    5.242\n \"7\"     3 \"JIT Intel P5/90\"     4.292\n \"8\"     7 \"JIT Intel P5/133\"    3.815\n \"9\"     3 \"JIT Intel P5/90\"     3.121\n \"10\"    3 \"JIT Intel 486/100\"   2.543\n \"11\"    4 \"JIT AMD 486/133\"     1.561\n \"12\"    2 \"DEC Alpha AS8400/350\"        1.075\n \"13\"    1 \"PowerMac 8500/120\"   0.551\n \"14\"    5 \"HP 712/80\"   0.26\n 0.551 Mflop/s in 1.25 secs ; Mac Mac OS PowerMac 8500/120 ; 29 Jun 96, Robert Schmidt (rschmidt@panix.com)\n 0.26 Mflop/s in 2.64 secs ; HP 712/80 ; 14 May 96, Hugh Vidos (vidos@research.cs.orst.edu)\n";

 StringBufferInputStream is = new StringBufferInputStream(temp);

		StreamTokenizer st = new StreamTokenizer(is);

		/* allow various commenting methods */
		st.commentChar('#');
		st.slashStarComments(true);
		st.slashSlashComments(true);

		st.quoteChar('"');

		st.parseNumbers(); // TT_NUMBER , nval

		try {
			while (st.TT_EOF != st.nextToken()) {
				double mflops = 0.0;
				String label = "";
				String info = "";
				int itemtype = 0;
				DataItem item;

				// first item label
				while ('"'!=st.ttype && st.TT_EOF != st.nextToken()) /*spin*/;
				if ('"'==st.ttype) {
					label = st.sval;
				}

				// second item itemtype
				while (st.TT_NUMBER!=st.ttype && st.TT_EOF != st.nextToken()) /*spin*/;
				if (st.TT_NUMBER==st.ttype) {
					itemtype = (int)st.nval;
				}

				// third item info
				while ('"'!=st.ttype && st.TT_EOF != st.nextToken()) /*spin*/;
				if ('"'==st.ttype) {
					info = st.sval;
				}

				// second fourth mflops
				while (st.TT_NUMBER!=st.ttype && st.TT_EOF != st.nextToken()) /*spin*/;
				if (st.TT_NUMBER==st.ttype) {
					mflops = st.nval;
					if (mflops > max_mflops)
						max_mflops = mflops;

					item = new DataItem(mflops, itemtype, info, label);
					data_list.addElement(item);
				}

			}
        } catch (Exception e) {
			couldnt_load = true;
            return;
        }

		try { 
			is.close();
        } catch (Exception e) {
			couldnt_load = true;
            return;
        }
    }

	public void paint(Graphics g) {

		Font font = g.getFont();	// save the default font
		Font minifont = new Font(font.getName(), font.getStyle(), 8);	// smaller

		int pad=20;

		if (mflops_result > max_mflops)
			max_mflops = mflops_result;

		// clear background
		g.setColor(getBackground());
		g.fillRect(1, 1, size().width - 2, size().height - 2);

		g.setColor(getForeground());
		if (couldnt_load) {
			g.drawString("Error: couldn't load Linpack data file", 10,50);
			return;
		}

		DataItem item;
		int i;

		// pad is size of border around bars area, same on all 3 sides
		// 0 element is not displayed, it is the scale (max value)

		int x, y2;
		int w,h;	// width and height excluding pad

		w = size().width - pad*2;
		h = size().height- pad*2;

		for (i=1; i<data_list.size(); i++) {
			item = (DataItem)data_list.elementAt(i);

			x = ( w * (i-1)/(data_list.size()-1) ) +pad;

			y2 = (int)(h - (h * item.mflops / max_mflops) +pad);


			g.setColor(getForeground());

			g.drawLine(x, h+pad, x, y2);
			g.drawString(item.label, x-5, h+pad+15);

			g.setFont(minifont);
			drawStringRising(g, 1, ""+item.mflops+" / "+item.info, x-10, y2-10);
			//g.drawString(""+item.mflops+" / "+item.info, x-10, y2-10);
			//g.drawString(item.info, x-10, y2-10);
			g.setFont(font);

			if (item.itemtype==1) {
				g.setColor(Color.red);
			} else if (item.itemtype==2) {
				g.setColor(Color.green);
			} else if (item.itemtype==3) {
				g.setColor(Color.orange);
			} else if (item.itemtype==4) {
				g.setColor(Color.blue);
			} else if (item.itemtype==5) {
				g.setColor(Color.pink);
			}

			g.fillPolygon(make_diamond(x,y2));
		}

		if (mflops_result!=0.0) {
			g.setColor(Color.red);
			x = w+pad;
			y2 = (int)(h - (h * mflops_result / max_mflops) +pad);
			g.drawLine(x, h+pad, x, y2);
			g.drawString("this", w+pad-5, h+pad+15);

			g.fillPolygon(make_diamond(x,y2));
			g.drawString(""+mflops_result, x-5, y2-10);

			g.setColor(Color.blue);
			String s = "Mflop/s: "+mflops_result
				+"  Time: "+time_result+" secs"
				+"  Norm Res: "+residn_result
				+"  Precision: "+eps_result;
			g.drawString(s,
				(size().width - g.getFontMetrics().stringWidth(s)) /2, 15);
			if (residn_result>100) {
			  g.setColor(Color.yellow);
			  g.drawString("Warning: there appears to be a problem with",
				30, 30);
			  g.drawString("the floating point arithmetic on this machine!!",
				30, 50);
			}
		}

	}

	void drawStringRising(Graphics g, int rise, String s, int x, int y) {
		// for each char : draw, rise

		char chars[] = s.toCharArray();

		String _s;

		FontMetrics fm = g.getFontMetrics();
		int l=s.length();
		for (int i=0; i<l; i++) {
			_s = String.valueOf(chars[i]);

			g.drawString(_s, x,y);
			x += fm.stringWidth(_s) +1;
			y -= rise;
		}
	}

	Polygon make_diamond(int x, int y) {
		Polygon p = new Polygon();
		p.addPoint(x,y+6);
		p.addPoint(x+6,y);
		p.addPoint(x,y-6);
		p.addPoint(x-6,y);
		return p;
	}

	void setCurrentRun(
		double mflops_result, 
		double residn_result, 
		double time_result, 
		double eps_result) {

		this.mflops_result = mflops_result;
		this.residn_result = residn_result;
		this.time_result = time_result;
		this.eps_result = eps_result;
	}
}