X-Cart forums - Automatic Thumbnail Resize

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:

Code:

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.