/**
* Add watermark to an image
* @author Francis R <*****@*****.**>
* @param string $source: source file string path
* @param string $dest : destination file string path
* @param int $watermark: 0 if watermark is disable, 1 if watermark is enable
* @param array $options: array consist of status, opacity, position and user_logo
* @return string : destination file path
*/
public static function add_watermark_image($source, $dest, $options = '')
{
if ($options == '') {
$options['status'] = 0;
}
if ($options['status'] != 1) {
return;
}
$filename = $source;
//default path for watermark
$watermark = WPL_ABSPATH . 'assets' . DS . 'img' . DS . 'system' . DS;
if (trim($options['url']) != '') {
$watermark .= trim($options['url']);
}
if (!wpl_file::exists($watermark)) {
return;
}
$source = strtolower($source);
$extension = wpl_file::getExt($source);
$w_extension = wpl_file::getExt($watermark);
list($w_width, $w_height, $w_type, $w_attr) = getimagesize($filename);
list($markwidth, $markheight, $w_type1, $w_attr1) = getimagesize($watermark);
switch ($extension) {
case 'jpg':
case 'jpeg':
$w_dest = imagecreatefromjpeg($filename);
break;
case 'gif':
$w_dest = imagecreatefromgif($filename);
break;
case 'png':
$w_dest = imagecreatefrompng($filename);
break;
default:
return;
}
switch ($w_extension) {
case 'jpg':
case 'jpeg':
$w_src = imagecreatefromjpeg($watermark);
break;
case 'gif':
$w_src = imagecreatefromgif($watermark);
break;
case 'png':
$w_src = imagecreatefrompng($watermark);
break;
default:
return;
}
// Copy and merge
$opacity = $options['opacity'];
$position = strtolower($options['position']);
switch ($position) {
case 'center':
wpl_images::imagecopymerge_alpha($w_dest, $w_src, $w_width - $markwidth >> 1, $w_height - $markheight >> 1, 0, 0, $markwidth, $markheight, $opacity);
break;
case 'left':
wpl_images::imagecopymerge_alpha($w_dest, $w_src, $w_width - $markwidth > 1, $w_height - $markheight >> 1, 0, 0, $markwidth, $markheight, $opacity);
break;
case 'right':
wpl_images::imagecopymerge_alpha($w_dest, $w_src, $w_width - $markwidth, $w_height - $markheight >> 1, 0, 0, $markwidth, $markheight, $opacity);
break;
case 'top':
wpl_images::imagecopymerge_alpha($w_dest, $w_src, $w_width - $markwidth >> 1, $w_height - $markheight > 1, 0, 0, $markwidth, $markheight, $opacity);
break;
case 'bottom':
wpl_images::imagecopymerge_alpha($w_dest, $w_src, $w_width - $markwidth >> 1, $w_height - $markheight, 0, 0, $markwidth, $markheight, $opacity);
break;
case 'top-left':
wpl_images::imagecopymerge_alpha($w_dest, $w_src, $w_width - $markwidth > 1, $w_height - $markheight > 1, 0, 0, $markwidth, $markheight, $opacity);
break;
case 'top-right':
wpl_images::imagecopymerge_alpha($w_dest, $w_src, $w_width - $markwidth, $w_height - $markheight > 1, 0, 0, $markwidth, $markheight, $opacity);
break;
case 'bottom-left':
wpl_images::imagecopymerge_alpha($w_dest, $w_src, $w_width - $markwidth > 1, $w_height - $markheight, 0, 0, $markwidth, $markheight, $opacity);
break;
case 'bottom-right':
wpl_images::imagecopymerge_alpha($w_dest, $w_src, $w_width - $markwidth, $w_height - $markheight, 0, 0, $markwidth, $markheight, $opacity);
break;
}
if ($extension == 'jpg' || $extension == 'jpeg') {
$quality = 95;
if (wpl_global::check_addon('optimizer') && wpl_global::get_client() === 0) {
$quality = wpl_addon_optimizer::optimize_image(wpl_addon_optimizer::IMAGE_JPEG, $w_dest);
}
ob_start();
imagejpeg($w_dest, NULL, $quality);
$out_image = ob_get_clean();
wpl_file::write($dest, $out_image);
} elseif ($extension == 'png') {
$quality = 9;
if (wpl_global::check_addon('optimizer') && wpl_global::get_client() === 0) {
$quality = wpl_addon_optimizer::optimize_image(wpl_addon_optimizer::IMAGE_PNG, $w_dest);
}
ob_start();
imagepng($w_dest, NULL, $quality);
$out_image = ob_get_clean();
wpl_file::write($dest, $out_image);
} elseif ($extension == 'gif') {
ob_start();
imagegif($w_dest);
$out_image = ob_get_clean();
wpl_file::write($dest, $out_image);
}
imagedestroy($w_src);
imagedestroy($w_dest);
// Return Destination
return $source;
}
