Image Thumbnailing Hack
=======================

This hack gives more sophisticated, HTML aware, handling of product
images. You an specify the type of image you require in your
database, with four options possible at present:

        thumb   A thumbnail image which references a larger version
        image   An image file with no related thumbnail text    A
        text string, to be displayed instead of an image (blank) No
        image

This hack also allows you to refer to image file names without
needing to include HTML within your database file. 

Currently, if you use the 'thumb' option, a hyperlink will be
created to large_<image file>, eg foo.jpg will link to
large_foo.jpg. Of course to have the large image filename come from
the database would not be much work (for someone...)

I have this hack working, but have not tested this document, so if
you have difficulties with it, let me know and I will send any
corrections.

This hack requires XXX files to be modified, as follows:

 
web_store.setup.db
==================
Below the line: $sc_order_script_url = ...
add:
$sc_product_image_url = "/productimages/";

To your database definition, add another field for imagetype, eg:
 
...
$db{"image"}       = 4;
$db{"imagetype"}   = 5;
$db{"description"} = 6;
...
 
After the line: $sc_db_index_of_price     = $db{"price"};
add:
$sc_db_index_of_image     = $db{"image"};
$sc_db_index_of_imagetype = $db{"imagetype"};
 
data.file
=========
Add another field to your database file, with one of the following
options for each product: image/thumb/text/(blank)
 
web_store.cgi
=============
 
Seek the section:
   if ($display_index == $sc_db_index_of_price)
      {
      $temp_fields[$sc_db_index_of_price] =
        &display_price($temp_fields[$sc_db_index_of_price]);
      }
      
Add immediately afterwards:
    if ($display_index == $sc_db_index_of_image)
      {
        if ($temp_fields[$sc_db_index_of_imagetype] eq "image") {
          $temp_fields[$sc_db_index_of_image]="<IMG
          SRC=\"$sc_product_image_url/$temp_fields[$sc_db_index_of_i
          mage]\" ALT=\"Product image\">";
        }
        elsif ($temp_fields[$sc_db_index_of_imagetype] eq "thumb") {
          $temp_fields[$sc_db_index_of_image]="<A
          HREF=\"$sc_product_image_url/large_$temp_fields[$sc_db_ind
          ex_of_image]\"><IMG
          SRC=\"$sc_product_image_url/$temp_fields[$sc_db_index_of_i
          mage]\" BORDER=0 ALT=\"Product image\"></A>";
        }
        elsif ($temp_fields[$sc_db_index_of_imagetype] eq "text") {
          $temp_fields[$sc_db_index_of_image]=$temp_fields[$sc_db_in
          dex_of_image];
        }
        else
        {
          $temp_fields[$sc_db_index_of_image]="";
        }
      }