/* Programmer Ng Hun Yang. Apr 2002

 Revision history
 10 Apr 2002  nhy  First written
 22 Jun 2002  nhy  Moved individual pic engine to PAEPic.txt
  4 Sep 2002  nhy  Put parameters in url
*/

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// ruar = required user access rights

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function disp_pic(d, pic_list_name, idx)
{
var pic_list = eval(pic_list_name);

var item = pic_list[idx];

// item 3 used to be align_horz_flag. now unused
// item 4 used to be desc_flag. now unused

var ruar = item[0];
var name = item[1];
var caption = item[2];
var settings = item[5];

var align_vert_flag = ruar & gbl_vert_pic;
var desc_flag = ruar & gbl_pic_desc;

var pic_pw = pic_pw_ref_list[ruar & 0x3f];

d.writeln("<h2>" + caption + "</h2>");

// show pic if,
//  1. user has pw (pic_pw != "")
//  2. ruar says pic is unprotected ((urar & gbl_no_pic) == 0)

if(pic_pw != "" || (ruar & gbl_no_pic) == 0)
  {
  var pic_name = name;

  if((ruar & gbl_no_pic) != 0)
    pic_name = pic_name + "-" + pic_pw;

  d.writeln("<img src=\"" + GblPicsPath + pic_name + GblPicsExt +
   "\" align=texttop>");
  }
else
  d.writeln("No rights to view this image.");

d.writeln("<br><br>");

if(desc_flag)
  {
  var w = window.open(
   GblHtmlPath + name + GblHtmlExt, // url
   "DescWin", // name
   "alwaysRaised,location,resizable,scrollbars" + // features
   ""
   );
  }

disp_settings(d, settings);
//disp_nav_btns(d, pic_list_name, idx);
}

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function disp_settings(d, settings)
{
if(settings == "")
  {
  d.writeln("Exposure setting is not available.<br><br>");
  return;
  }

settings = settings.split(" ");

var lens = settings[0];
var ap = settings[1];
var sh = settings[2];

d.write("<b>Lens</b> ");
d.write(lens_desc_ref_list[lens]);
d.writeln(". ");

d.write("<b>Aperture</b> ");
d.write(ap);
d.writeln(". ");

d.write("<b>Shutter speed</b> ");
d.write(sh);
d.writeln(".<br>");

if(settings.length < 4)
  return;

for(var i = 3; i < settings.length; ++i)
  {
  var vsetting = settings[i].split("=");

  if(vsetting[0] == "flash")
    {
    d.write("Flash was used");

    if(vsetting.length > 1 && vsetting[1] != "0.0")
      d.write(" with " + vsetting[1] + " compensation");

    d.writeln(".<br>");
    }

  else if(vsetting[0] == "bounced_flash")
    {
    d.write("Bounced flash was used");

    if(vsetting.length > 1 && vsetting[1] != "0.0")
      d.write(" with " + vsetting[1] + " compensation");

    d.writeln(".<br>");
    }

  else if(vsetting[0] == "off_flash")
    {
    d.write("Off-camera flash was used");

    if(vsetting.length > 1 && vsetting[1] != "0.0")
      d.write(" with " + vsetting[1] + " compensation");

    d.writeln(".<br>");
    }

  else if(vsetting[0] == "no_flash")
    {
    d.writeln("No flash was used.<br>");
    }

  else if(vsetting[0] == "cam")
    {
    d.write(camera_desc_ref_list[vsetting[1]] + " was used.<br>");
    }

  else if(vsetting[0] == "film")
    {
    d.write(film_desc_ref_list[vsetting[1]] + " was used.<br>");
    }

  else if(vsetting[0] == "support")
    {
    if(vsetting.length > 1)
      {
      if(vsetting[1] == "tripod")
        d.writeln("Tripod was used.<br>");
      else if(vsetting[1] == "monopod")
        d.writeln("Monopod was used.<br>");
      else if(vsetting[1] == "others")
        d.writeln("Other support was used.<br>");
      else if(vsetting[1] == "handheld")
        d.writeln("Handheld.<br>");
      else
        alert("Unknown support: " + vsettings[1]);
      }
    }

  else if(vsetting[0] == "sp_eff")
    {
    if(vsetting.length > 1)
      {
      if(vsetting[1] == "timer")
        d.writeln("Timer was used.<br>");
      else if(vsetting[1] == "mul_exp")
        d.writeln("Multiple exposure was used.<br>");
      else if(vsetting[1] == "mlu")
        d.writeln("MLU was used.<br>");
      else if(vsetting[1] == "stf")
        d.writeln("STF was used.<br>");
      else if(vsetting[1] == "none")
        d.writeln("No special effect.<br>");
      else
        alert("Unknown special effect: " + vsettings[1]);
      }
    }

  else if(vsetting[0] == "sp_equp")
    {
    if(vsetting.length > 1)
      {
      if(vsetting[1] == "reflector")
        d.writeln("A reflector was used.<br>");
      else
        alert("Unknown special equipment: " + vsettings[1]);
      }
    }

  else
    {
    alert("Unknown setting: " + settings[i]);
    }
  }

d.writeln("<br>");
}

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function disp_nav_btns(d, pic_list_name, idx)
{
var pic_list = eval(pic_list_name);

d.writeln("<a href=\"javascript:parent.disp_page(" + gbl_cur_page + ")\">" +
 "Back</a>");

if(idx > 0)
  {
  d.writeln("<a href=\'javascript:parent.disp_pic(" +
   "\"" + pic_list_name + "\", " +
   (idx - 1) + ")\'>Prev</a>");
  }
else
  {
  d.writeln("Prev");
  }

if(idx < pic_list.length - 1)
  {
  d.writeln("<a href=\'javascript:parent.disp_pic(" +
   "\"" + pic_list_name + "\", " +
   (idx + 1) + ")\'>Next</a>");
  }
else
  {
  d.writeln("Next");
  }
}

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function disp_pic_on_load()
{
var d = frames["contents"].document;

write_body(d);

var myurl;
var param_list;
var list_name;
var pic_idx;

myurl = "" + frames["contents"].window.location;

//alert("myurl = " + myurl);

param_list = extract_params(myurl);

list_name = param_list["list"];
if(list_name == undefined)
  list_name = 0;

idx = param_list["idx"];
if(idx == undefined)
  idx = 0;

disp_pic(d, list_name, idx);

d.writeln(END_BODY);
}

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