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<?php
function tp_watermark($thumbs) {
global $CONFIG;
$user = get_user_entity_as_row($album->owner_guid);
$username = $user->username;
$im_path = get_plugin_setting('im_path', 'tidypics');
if(!$im_path) {
$im_path = "/usr/bin/";
}
if(substr($im_path, strlen($im_path)-1, 1) != "/") $im_path .= "/";
$viewer = get_loggedin_user();
$watermark_text = get_plugin_setting('watermark_text', 'tidypics');
$watermark_text = str_replace("%username%", $viewer->username, $watermark_text);
$watermark_text = str_replace("%sitename%", $CONFIG->sitename, $watermark_text);
if( $watermark_text ) { //get this value from the plugin settings
if( $thumbs["thumblarge"] ) {
$ext = ".png";
$watermark_filename = strtolower($watermark_text);
$watermark_filename = preg_replace("/[^\w-]+/", "-", $watermark_filename);
$watermark_filename = trim($watermark_filename, '-');
$user_stamp_base = tp_get_img_dir();
$user_stamp_base .= strtolower($viewer->name . "_" . $watermark_filename . "_stamp");
$user_stamp_base .= preg_replace("/[^\w-]+/", "-", $user_stamp_base);
if( !file_exists( $user_stamp_base . $ext )) { //create the watermark if it doesn't exist
$commands = array();
$commands[] = $im_path . 'convert -size 300x50 xc:grey30 -pointsize 20 -gravity center -draw "fill grey70 text 0,0 \''. $watermark_text . '\'" "'. $user_stamp_base . '_fgnd' . $ext . '"';
$commands[] = $im_path . 'convert -size 300x50 xc:black -pointsize 20 -gravity center -draw "fill white text 1,1 \''. $watermark_text . '\' text 0,0 \''. $watermark_text . '\' fill black text -1,-1 \''. $watermark_text . '\'" +matte ' . $user_stamp_base . '_mask' . $ext;
$commands[] = $im_path . 'composite -compose CopyOpacity "' . $user_stamp_base . "_mask" . $ext . '" "' . $user_stamp_base . '_fgnd' . $ext . '" "' . $user_stamp_base . $ext . '"';
$commands[] = $im_path . 'mogrify -trim +repage "' . $user_stamp_base . $ext . '"';
$commands[] = 'rm "' . $user_stamp_base . '_mask' . $ext . '"';
$commands[] = 'rm "' . $user_stamp_fgnd . '_mask' . $ext . '"';
foreach( $commands as $command ) {
exec( $command );
}
}
//apply the watermark
$commands = array();
$commands[] = $im_path . 'composite -gravity south -geometry +0+10 "' . $user_stamp_base . $ext . '" "' . $thumbs["thumblarge"] . '" "' . $thumbs["thumblarge"] . '_watermarked"';
$commands[] = "mv \"$thumbs[thumblarge]" . "_watermarked\" \"$thumbs[thumblarge]\"";
foreach( $commands as $command ) {
exec( $command );
}
}
}
}
?>
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