$w_pos = $w_pos ? $w_pos : $this->w_pos;
$w_img = $w_img ? $w_img : $this->w_img;
//if(!$this->watermark_enable || !$this->check($source)) return false;
if(!$target) $target = $source;
//$w_img = PHPCMS_PATH.$w_img;
//define('WWW_PATH',dirname(dirname(dirname(FILE)));
$w_img = '../../../images/water/'.$w_img;
$source_info = getimagesize($source);
$source_w = $source_info[0];
$source_h = $source_info[1];
//if($source_w < $this->w_minwidth || $source_h < $this->w_minheight) return false;
switch($source_info[2]) {
case 1 :
$source_img = imagecreatefromgif($source);
break;
case 2 :
$source_img = imagecreatefromjpeg($source);
break;
case 3 :
$source_img = imagecreatefrompng($source);
break;
default :
return false;
}
if(!empty($w_img) && file_exists($w_img)) {
$ifwaterimage = 1;
$water_info = getimagesize($w_img);
$width = $water_info[0];
$height = $water_info[1];
switch($water_info[2]) {
case 1 :
$water_img = imagecreatefromgif($w_img);
break;
case 2 :
$water_img = imagecreatefromjpeg($w_img);
break;
case 3 :
$water_img = imagecreatefrompng($w_img);
break;
default :
return;
}
} else {
$ifwaterimage = 0;
$temp = imagettfbBox(ceil($w_font*2.5),PC_PATH.'libs/data/font/elephant.ttf',$w_text);
$width = $temp[2] - $temp[6];
$height = $temp[3] - $temp[7];
unset($temp);
}
switch($w_pos) {
case 1:
$wx = 5;
$wy = 5;
break;
case 2:
$wx = ($source_w - $width) / 2;
$wy = 0;
break;
case 3:
$wx = $source_w - $width;
$wy = 0;
break;
case 4:
$wx = 0;
$wy = ($source_h - $height) / 2;
break;
case 5:
$wx = ($source_w - $width) / 2;
$wy = ($source_h - $height) / 2;
break;
case 6:
$wx = $source_w - $width;
$wy = ($source_h - $height) / 2;
break;
case 7:
$wx = 0;
$wy = $source_h - $height;
break;
case 8:
$wx = ($source_w - $width) / 2;
$wy = $source_h - $height;
break;
case 9:
$wx = $source_w - $width;
$wy = $source_h - $height;
break;
case 10:
$wx = rand(0,($source_w - $width));
$wy = rand(0,($source_h - $height));
break;
default:
$wx = rand(0,($source_h - $height));
break;
}
if($ifwaterimage) {
if($water_info[2] == 3) {
imagecopy($source_img,$water_img,$wx,$wy,$width,$height);
} else {
imagecopymerge($source_img,$height,$this->w_pct);
}
} else {
if(!empty($w_color) && (strlen($w_color)==7)) {
$r = hexdec(substr($w_color,1,2));
$g = hexdec(substr($w_color,3,2));
$b = hexdec(substr($w_color,5));
} else {
return;
}
imagestring($source_img,$w_font,$w_text,imagecolorallocate($source_img,$r,$g,$b));
}

switch($source_info[2]) {
case 1 :
imagegif($source_img,$target);
break;
case 2 :
imagejpeg($source_img,$target,$this->w_quality);
break;
case 3 :
imagepng($source_img,$target);
break;
default :
return;
}

if(isset($water_info)) {
unset($water_info);
}
if(isset($water_img)) {
imagedestroy($water_img);
}
unset($source_info);
imagedestroy($source_img);
return true;
}

public function check($image) {
return extension_loaded('gd') && preg_match("/.(jpg|jpeg|gif|png)/i",$image,$m) && file_exists($image) && function_exists('imagecreatefrom'.($m[1] == 'jpg' ? 'jpeg' : $m[1]));
}