[eleven]

A client of mine didn't understand how to resize his images before he added them to the cart, so I wrote a quick and dirty mod to automatically resize them when he uploads them.

WARNING:
- it only works for jpg's (although it can easily be changed)
- it only works for images stored in the file system
- it uses GD. Some servers may not have GD installed (most will)
- the width is hard coded, you need to change it to the width of your images. It is line number 39 below.
- it will not work for batch imports, only thumbnails added through the Modify Products section

In /cart/include/func.php replace the function func_get_image_content with this:

function func_get_image_content($file_upload_data, $id) {

	global $config;

	$file_aliases_count_max = 99;

	switch($file_upload_data["imtype"]) {
		case "C":
			$config_data["location"] = $config["Images"]["icons_location"];
			break;
		case "W":
			$config_data["location"] = $config["Images"]["pcicons_location"];
			break;
		case "T":
			$config_data["location"] = $config["Images"]["thumbnails_location"];
			break;
		case "D":
			$config_data["location"] = $config["Images"]["det_images_location"];
			break;
		default:
			return false;
	}

	$file_path = $file_upload_data["file_path"];

	if ($fd = fopen($file_path, "rb")) {

		if ($config_data["location"] == "FS") {	
#
# Resize image
#
				if (($file_upload_data["imtype"] == "T") && ($file_upload_data["image_type"] == "image/pjpeg")) {
					$img_src = ImageCreateFromjpeg ($imgname); 

 					$true_width = imagesx($img_src);
 					$true_height = imagesy($img_src);
					
 					# change this next line to control the width of the thumbnail
 					$width = 360;
 					$height = ($width/$true_width)*$true_height;
 
					$img_des = imagecreatetruecolor($width,$height);
 					imagecopyresized ($img_des, $img_src, 0, 0, 0, 0, $width, $height, $true_width, $true_height);
			
					imagejpeg($img_des,$file_path,80);
				}
# end resize
		
					
#
# ...else image is path to file
#
			$image = $file_path;
		}
		else
		{
#
# If image should be stored in the database, get image content from file
#
			if ($file_upload_data["source"] == "U")
				$file_size = 1000000;
	        else
				$file_size = filesize($file_path);

			$image = addslashes(fread($fd, $file_size));
		}
		fclose($fd);

		if ($file_upload_data["source"] == "L" && !empty($file_upload_data["dir_upload"])) {

			if ($config_data["location"] == "FS") {
#
# For FS storing. If image has been uploaded, move it to specified directory
#
				$file_name = ($file_upload_data["imtype"]=="W"?"w_$id":($file_upload_data["imtype"]=="C"?"c_$id":($file_upload_data["imtype"]=="T"?"t_$id":"d_$id")));
				$file_type = (strstr($file_path,"gif")?"gif":(strstr($file_path,"png")?"png":"jpg"));

#
# Check the existing file
#
		        $counter = 1;
	    	    $file_name_tmp = $file_name;

		        while (file_exists($file_upload_data["dir_upload"]."/".$file_name_tmp.".".$file_type) && $counter<$file_aliases_count_max) {
		            $file_name_tmp = $file_name."_".sprintf("%02d", $counter);
		            $counter++;
		        }
		        $file_name = $file_name_tmp;
				$image = $file_upload_data["dir_upload"]."/".$file_name.".".$file_type;
				
				copy($file_path, $image);
				@chmod($image, 0666);
			}
#
# Delete temporary file
#
			@unlink($file_path);
		}

	}
	return array("image"=>$image, "image_type"=>$file_upload_data["image_type"], "image_x"=>$width, "image_y"=>$height, "file_size"=>$file_upload_data["file_size"]);
}

I'm sure someone with a little more time on their hands could develop this into a nice mod that works for all images, not just thumbnails and jpg's and gets its settings from the admin area.