X-Cart forums - Displaying watermarks on product images

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- - Displaying watermarks on product images (https://forum.x-cart.com/showthread.php?t=57635)

Displaying watermarks on product images

I couldn't find an easy mod to display watermarks on product images, so I came up with a bit of a hack to do it.

PLEASE NOTE:
- It will only work if you store your images on the filesystem.
- If you use different images depending on the product variants this will NOT work for you.
- Only tested on v4.3.1 on a somewhat basic site
- Use at your own risk.

Step 1: Copy this script and put it in the root (tweak as needed)

<?php
// this script creates a watermarked image from an image file - can be a .jpg .gif or .png file
// where watermark.png or watermark.gif is a mostly transparent png or gif image with the watermark - goes in the same directory as this script
// where this script is named picture.php
// call this script with an image tag
// <img src="/picture.php?path=T/productpic.png">
$basebpath = "http://www.domain.com/cart/images/";

$imagesource = $basebpath . $_GET['path'];
$filetype = substr($imagesource,strlen($imagesource)-4,4);
$filetype = strtolower($filetype);
if($filetype == ".gif") $image = @imagecreatefromgif($imagesource);
if($filetype == ".jpg") $image = @imagecreatefromjpeg($imagesource);
if($filetype == ".png") $image = @imagecreatefrompng($imagesource);
if (!$image) die();
//$watermark = @imagecreatefromgif('watermark.gif'); // uncomment to use a gif
$watermark = @imagecreatefrompng('watermark.png'); // comment to use a gif
$imagewidth = imagesx($image);
$imageheight = imagesy($image);
$watermarkwidth = imagesx($watermark);
$watermarkheight = imagesy($watermark);
$startwidth = (($imagewidth - $watermarkwidth)/2); // tweak this to change the location of the watermark
$startheight = (($imageheight - $watermarkheight)/2); // tweak this to change the location of the watermark
imagecopy($image, $watermark, $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight);
imagejpeg($image);
imagedestroy($image);
imagedestroy($watermark);
?>

Step 2: Edit /cart/skin1/product_thumbnail.tpl

Replace the line (this is the hack because the _t breaks the variant images javascript):
{if $id ne ''} id="{$id}"{/if} src="
with:
{if $id ne ''} id="{$id}_t"{/if} src="

Replace this line:
{$tmbn_url|amp}
with:
{$tmbn_url|amp|replace:'/cart/images/':'/picture.php?path='}