package uk.ac.leeds.ccg.cluster;
import uk.ac.leeds.ccg.geotools.*;
import uk.ac.leeds.ccg.widgets.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;

import xygraph.*;
/*
 * TimeSeriesViewer.java
 * Created on 01 February 2001, 00:55
 */

/** The timeseries to be viewed
 *
 * @author alistaiw
 */
public class TimeSeriesViewer extends java.awt.Panel implements ActionListener,TimeParametersChangedListener{
    private static final String Header = "$Header: /export/cvsroot/spinsrc/src/uk/ac/leeds/ccg/cluster/TimeSeriesViewer.java,v 1.9 2002/01/16 14:24:20 alistaiw Exp $";
    public java.awt.MenuBar menuBar1;
    private java.awt.Menu menu1, menu2;
    private java.awt.MenuItem menuItem2, menuItem4;
    //private uk.ac.leeds.ccg.geotools.Viewer viewer1;
    Database dbase = new Database();
	Frame f;
    XYGraph graph = new XYGraph();
    TimeParameters parameters;
        double mintime, maxtime;
        int numbin;

    public TimeSeriesViewer(Frame f,TimeParameters p) {
	this.f=f;
	f.setSize(400,400);
	setSize(400,400);
	f.setVisible(true);
        initComponents();
				parameters = p;
				parameters.addTimeParametersChangedListener(this);
        mintime = parameters.getStartTime();
        maxtime = parameters.getEndTime();
        numbin = parameters.getNumBin();
    }
    
    private void initComponents() {
        menuBar1 = new java.awt.MenuBar();
        menu1 = new java.awt.Menu();
        menuItem2 = new java.awt.MenuItem();
        menuItem2.addActionListener(this);
        //viewer1 = new uk.ac.leeds.ccg.geotools.Viewer();
				graph.setSize(400,400);
	// viewer1.setSize(250,250);
				graph.setBackground(Color.white);
        
        menu1.setLabel("File");
        
        menuItem2.setName("Close");
        menuItem2.setLabel("Quit");
        menu1.add(menuItem2);
        menuBar1.add(menu1);
        
        setLayout(new java.awt.BorderLayout());
        
        add(graph, java.awt.BorderLayout.CENTER);
    }
    
/** handles the actions of the menubar - feel free to use a different one if you prefer
 * @param p1 the event
 */    
    public void actionPerformed(java.awt.event.ActionEvent p1) {
        String cmd = p1.getActionCommand();
        // if its quit then quit!
        if(cmd.equalsIgnoreCase("quit")){
		f.dispose();
        }
        if(cmd.equalsIgnoreCase("exit")){
            System.exit(0);
        }
    }

/** allows the frame using the viewer to have the menu bar
 * @return the menubar
 */    
    public MenuBar getMenuBar(){
        return menuBar1;
    }

    public void displayData2(){
	EqualInterval2 equalinterval2;
	double bin[] = new double[400];
        double bL, bU, to, from;
	String label;
	double tick;
	int itick;
            mintime = parameters.getStartTime();
            maxtime = parameters.getEndTime();
	    numbin = parameters.getNumBin();
// System.out.println("Here - " + numbin +" "+ mintime +" "+ maxtime);

	graph.dataset.pointSet.removeAllElements();
	f.setSize(400,400);
    	    GeoData gcases = dbase.getCaseVals();
        Vector points = dbase.getPoints();

	equalinterval2 = new EqualInterval2(gcases, numbin, mintime, maxtime);
        for (int j=0; j<numbin; j++){
            bL = equalinterval2.getBin(j).getLowerInclusion();
            bU = equalinterval2.getBin(j).getUpperExclusion();
           for (int i=0; i<gcases.getSize(); i++){
                from = ((MyPoint)points.elementAt(i)).cases;
                to = ((MyPoint)points.elementAt(i)).pop;
                if (from > bU || to < bL) continue;
                if (to == from){
                    bin[j]++;
                    continue;
                }
                double length = to - from;
                if (from <bL){
                    if (to < bU) bin[j] += (to - bL)/length;
                    else bin[j] += (bU - bL)/length;
                }
                else{
                    if (to < bU) bin[j] += 1.;
                    else bin[j] += (bU - from)/length;
                }
            }
        }

	// for (int i=1; i<=gcases.getSize(); i++){
	    // if (gcases.getValue(i) < mintime || gcases.getValue(i) > maxtime) continue;
            // bin[ equalinterval2.classify((double) gcases.getValue(i)) ]++ ;
	// }

    	    for (int i=0; i<numbin; i++){
        	graph.dataset.addElement(new XYPoint(i, bin[i]),0);
    	    }
	    graph.xAxis.clearLabels();
	    for (int i=0; i<7; i++){
		tick = ((double) i * (maxtime-mintime)/6. + mintime) * 10.;
		itick = (int) tick;
		tick = (double) itick/10.;
		label = String.valueOf(tick);
		graph.xAxis.addLabel( label);
	    }
            graph.xAxis.axisLabel="My Label";
            // graph.dataset.setName(0,"Data name");
            graph.dataset.setName(0,dbase.getName());
	    graph.repaint();
	}
	public void setDatabase(Database db){
		dbase = db;
		displayData2();
	}
	public Database getDatabase(){
		return dbase;
	}
        public void addGeography(Theme t){
            //viewer1.addTheme(t);
        }
	public Dimension getMinimumSize(){
		return new Dimension(400,400);
	}
	public Dimension getPreferredSize(){
		return new Dimension(400,400);
	}
	public void TimeParametersChanged(TimeParametersChangedEvent tce){
		// parameters have changed - re draw!
		System.out.println("Parameter change");
		displayData2();
	}
}