/** 
  * Current Account Balances: Graphical Display Applet
  * @author Robert J Morton <robmorton@clara.net>
  * @version 12 July 2000, 23 April 2012
  * @copyright July 2000 Robert J Morton (all rights reserved) */

/* This applet requires specialised data files called savyyyy.dat 
   (where yyyy is the year number) located in the same directory as
   savlim1.class and savlim2.class on the web server. It requires no 
   server-side executables or scripts. The data files are generated 
   from input text files by an off-line command-line java program 
   called savlim0.class. This applet conforms to API 1.1  */

import java.awt.*;     // for graphics operations (GUI)
import javax.swing.*;  // swing GUI widgets library


public class savlim1 extends JPanel implements Runnable {

  boolean load = true;  // true means "load data file"
  private Thread T;     // reference for a run() thread
  private graph gp;     // instance ref for accounts graph panel
  private loader ld;    // instance ref for loader


  savlim1(int ls, String cb) {
    setBackground(new Color(238,238,238));  // set background colour
    setLayout(null);  // to allow the control panels to be laid out manually

    // Create an instance of each of the following JPanels:
    maxmin mm = new maxmin();              // max/min balances panel
    pscale ps = new pscale();              // money scale panel
    mscale ms = new mscale();              // month scale panel
    gp = new graph(this,mm,ms);            // graph panel
    selyear sy = new selyear(this,ms,gp);  // year selector panel
    selinfl si = new selinfl(gp);          // inflation selector panel

    // add each to this main panel and set its position and size:
    add(mm); mm.setBounds(10,0,350,50);
    add(ps); ps.setBounds(10,56,45,212);
    add(ms); ms.setBounds(49,268,370,30);
    add(gp); gp.setBounds(49,62,366,201);
    add(sy); sy.setBounds(425,40,100,240);
    add(si); si.setBounds(10,300,350,40);

    ld = new loader(ls,cb);  // create an instance of the data file loader
    loadData(2000);          // display the data initially for the year 2000
    T = new Thread(this);    // create a run() thread for downloading data
    T.start();               // start the local run-thread
  }

  
  // MANAGE INTERNET DATA TRANSFERS ON A SEPARATE THREAD
  public void run() {
    while(T != null) {         // while this thread exists
      if(load)
        if(ld.dataLoaded()) {  // if hits data all loaded
          load = false;
          gp.setD(ld);         // pass B[] to the graph panel
          repaint();           // display the graph
        }
     try{Thread.sleep(50);}    // sleep then continue loading
     catch(InterruptedException e){}
    }
  }


  void loadData(int year) {  // called by both 'this' and 'selyear'
    System.out.println("Year: " + year);
    // string version of the year number e.g. 2001
    ld.setFileName("sav" + year + ".dat");
    // string version of the year number e.g. 2001
    load = true;
  }
}