package Gui.Param;

import Obj.*;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.io.*;


public class MainPanel extends JPanel {
    
    // private JTextField maxpopsField;
    private JTextField burninField;
    private JTextField numrepsField;
    

    // The data members
    
    // private int maxpops;
    private int burnin;
    private int numreps; 	 	

    // Data Model
    private NSimObj sim;	

    public MainPanel(NSimObj sim){

	this.sim = sim;	
	
	// JLabel l1 = new JLabel("   Number of Populations Assumed (K):   ");
	JLabel l2 = new JLabel("   Length of Burnin Period:             ");
	JLabel l3 = new JLabel("   Number of MCMC Reps after Burnin :   ");



	// maxpopsField = new JTextField(5);
	burninField  = new JTextField(5);
	numrepsField = new JTextField(5);
	

	//JPanel pt1 = new JPanel();
	//pt1.add(maxpopsField);
	JPanel pt2 = new JPanel();
	pt2.add(burninField);
	JPanel pt3 = new JPanel();
	pt3.add(numrepsField);
	
	

	JPanel p1 = new JPanel();
	p1.setLayout(new GridLayout(0,1));
	//p1.add(l1);
	p1.add(l2);
	p1.add(l3);
		
	JPanel p2 = new JPanel();
	p2.setLayout(new GridLayout(0,1));
	//p2.add(pt1);
	p2.add(pt2);
	p2.add(pt3);
	


	GridBagLayout gridbag = new GridBagLayout();
	GridBagConstraints c = new GridBagConstraints();
	this.setLayout(gridbag);
	c.fill = GridBagConstraints.BOTH;
	c.gridx = 0;
	c.gridy = 0;
	gridbag.setConstraints(p1, c);
	this.add(p1);
	c.gridx = 1;
	gridbag.setConstraints(p2, c);
	this.add(p2);
	setPreferredSize(new Dimension(200,150));
	
	if(!sim.isNew()){
	    
	    // maxpops = sim.MAXPOPS;
	    burnin  = sim.BURNIN;
	    numreps = sim.NUMREPS;

	    // maxpopsField.setText(""+sim.MAXPOPS);
	    burninField.setText(""+sim.BURNIN);
	    numrepsField.setText(""+sim.NUMREPS);
	    

	}
	
    }

       
    public boolean validateData(){
	
	String errString = ""; 
	/*
	  String tmp = maxpopsField.getText();
	  try {
	  maxpops = Integer.parseInt(tmp);
	  }catch (NumberFormatException e){
	  errString += new String("\n\"Number of Populations\" Must be an Integer    ");
	  }
	 
	*/
	String tmp = burninField.getText();
	try {
	    burnin = Integer.parseInt(tmp);
	}catch (NumberFormatException e){
	    errString += new String("\n\"Length of Burnin\" Must be an Integer    ");
	}
	
	
	tmp = numrepsField.getText();
	try {
	    numreps = Integer.parseInt(tmp);
	}catch (NumberFormatException e){
	    errString += new String("\n\"Number of MCMC Reps\" Must be an Integer    ");
	}
	
	if(errString.compareTo("")!=0){
	    String prefix = "Errors:\n\n";
	    errString = prefix.concat(errString);
	    errString += new String("\n\n");
	    JOptionPane.showMessageDialog(this,
					  errString,
					  "errors",
					  JOptionPane.ERROR_MESSAGE);
	    return false;
	}
	
	return true;
    }  
    
    public void updateData() {
	
	sim.BURNIN = burnin;
  	sim.NUMREPS = numreps;
 }

}