/** 
  * Current Account Balances: Graphical Display Applet
  * @author Robert J Morton <robmorton@clara.net>
  * @version 12 July 2000, 27 April 2012
  * @copyright July 2000 Robert J Morton (all rights reserved) */

/*  THE PANEL ON WHICH THE VERTICAL MONEY SCALE iS DISPLAYED

    The panel is 45 by 212 pixels. */

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


public class vert extends JPanel {

  private static final String  // ANNOTATION TEXT FROM TOP TO BOTTOM
    AT[][] = {                                       // £ scale labels
      {" £0k","£10k","£20k","£30k","£40k","£50k"},  // scale = 0
      {" £0k"," £5k","£10k","£15k","£20k","£25k"},  //         1
      {" £0k"," £2k"," £4k"," £6k"," £8k","£10k"},  //         2
      {" £0k"," £1k"," £2k"," £3k"," £4k"," £5k"},  //         3
      {" £0k"," £½k"," £1k","£1½k"," £2k","£2½k"},  //         4
      {" £0k","£200","£400","£600","£800"," £1k"},  //         5
      {"£10k"," £0k","£10k","£20k","£30k","£40k"},  //         6
      {"£30k","£20k","£10k"," £0k","£10k","£20k"},  //         7
      {"  £0"," £50","£100","£150","£200","£250"},  //         8
      { "£10","  £0", "£10", "£20", "£30", "£40"},  //         9
      {  "0M",  "1M",  "2M",  "3M",  "4M",  "5M"},  //        10
      { "00M", "10M", "20M", "30M", "40M", "50M"}   //        11
    };

  private int 
    fh,  // font height
    sf;  // monetary scaling factor for vertical axis

  private static final Font font = new Font("Sans",Font.BOLD,14);
  private FontMetrics fm;


  vert(graphs ap, selfile SF, trace tr) {

    // get letter dimensions etc for the above font
    fm = getFontMetrics(font);

    // descent of monetary annotation below graduation mark
    fh = (fm.getAscent() + fm.getDescent()) / 2; 

    // get the monetary scaling factor for vertical axis
    sf = tr.getScale();
  }


  public void paint(Graphics g) {
    setFont(font);
    int z = 6;  // vertical graticule increment

    for(int i = 0; i < 6; i++) {  // for each £10,000 graduation

      if(sf == 6 && i > 4 || sf == 7 && i > 2 || sf == 9 && i > 4) 
        g.setColor(Color.red);  // show negative money in red
      else
        g.setColor(Color.black);

      String s = AT[sf][5-i];   // annotation text from top to bottom
      g.drawString(s,49-fm.stringWidth(s),z+4);

      g.setColor(Color.black);  // all annotation marks are black
      g.drawLine(50,z,55,z);    // annotation mark
      z += 40;                  // accumulated number of £s (scaled)
    }
    g.setColor(Color.black);
    g.drawLine(55,6,55,206);  // vertical axis
  }
}