ueditor picture watermark

/*PHP picture adding text watermark library


 This class library currently only supports text watermarks, the position is the lower right corner, the color is random

 Calling method:
 1. Add watermark when needed Introduce the class library at the top of the file:
 include_once 'imageClass.php';
 2. Declare the new class:
 $tpl=new image_fu;
 3. Provide parameters for the image watermark:
 $tpl->img (image path, watermark Text, font path, font size, font angle);
 For example: $tpl->img('abc.jpg','This is watermark text','ziti.ttf',30,0)

*/

 class image_fu{

 private $image;
 private $img_info;
 private $img_width;
 private $img_height;
 private $img_im;
 private $img_text;
 private $img_ttf='';
 private $img_new;
 private $img_text_size;
 private $img_jd;


 function img($img='',$txt='',$ttf='',$size=12,$jiaodu=0){
 if(isset($img )&&file_exists($img)){//Check whether the image exists
 $this->image =$img;
 $this->img_text=$txt;
 $this->img_text_size=$size;
 $this ->img_jd=$jiaodu;
 if(file_exists($ttf)){
 $this->img_ttf=$ttf;
 }else{
 exit('Font file: '.$ttf.' does not exist!' );
 }
 $this->imgyesno();
 }else{
 exit('Image file:'.$img.' does not exist');
 }
 }

 private function imgyesno(){

 $this->img_info =getimagesize($this->image);
 $this->img_width =$this->img_info[0];//Image width
 $this->img_height=$this- >img_info[1];//Picture height

 //Detect picture type
 switch($this->img_info[2]){
 case 1:$this->img_im = imagecreatefromgif($this-> image);break;
 case 2:$this->img_im = imagecreatefromjpeg($this->image);break;
 case 3:$this->img_im = imagecreatefrompng($this->image);break ;
 default:exit('The image format does not support watermarks');
 }

 $this->img_text();
 }


 private function img_text(){

 imagealphablending($this->img_im, true);

 //Set color
 $color=imagecolorallocate($this->img_im,255,255,255);
 $txt_height=$this->img_text_size;
 $txt_jiaodu=$this->img_jd;
 $ ttf_im=imagettfbbox($txt_height,$txt_jiaodu,$this->img_ttf,$this->img_text);
 $w = $ttf_im[2] - $ttf_im[6];
 $h = $ttf_im[3] - $ttf_im[7];
 //$w = $ttf_im[7];
 //$h = $ttf_im[8];

 unset($ttf_im);

 $txt_y =$this->img_height *0.5;
 $txt_x =$this->img_width*0.2;
 //$txt_y =0;
 //$txt_x =0;



 $this->img_new=@imagettftext($this-> ;img_im,$txt_height,$txt_jiaodu,$txt_x,$txt_y,$color,$this->img_ttf,$this->img_text);

 @unlink($this->image);//Delete image
 switch($this->img_info[2]) {//Get the format of the background image
 case 1:imagegif($this->img_im,$this->image);break;
 case 2:imagejpeg( $this->img_im,$this->image);break;
 case 3:imagepng($this->img_im,$this->image);break;
 default: exit('Watermark image failed' );
 }

 }


 //Show image
 function img_show(){echo '';}

 //Release memory
 private function img_nothing(){
 unset($this->img_info);
 imagedestroy($this->img_im);
 }

 }

?>

 /**
     * Created by JetBrains PhpStorm.
     * User: taoqili
     * Date: 12-7-18
     * Time: 上午10:42
*/
 header("Content-Type: text/html; charset=utf-8");
 error_reporting(E_ERROR | E_WARNING);
 include "Uploader. class.php";
 //The description form name in the upload picture box,
 $title = htmlspecialchars($_POST['pictitle'], ENT_QUOTES);
 $path = htmlspecialchars($_POST['dir'], ENT_QUOTES) ;

 //Upload configuration
 $config = array(
 "savePath" => ($path == "1" ? "upload/" : "upload1/"),
 "maxSize" => 1000, / /Unit KB
 "allowFiles" => array(".gif", ".png", ".jpg", ".jpeg", ".bmp")
 );

 //Generate the upload instance object and complete Upload
 $up = new Uploader("upfile", $config);

 /**
 * Get the parameters and array structure corresponding to the uploaded file
 * array(
 * "originalName" => "", //Original file name
 * "name" => "", //New file name
 * "url" => "", //Returned address
 * "size" => "", //File size
 * "type" => "" , //File type
 * "state" => "" //Upload status, "SUCCESS" must be returned when the upload is successful
 * )
*/
 $info = $up->getFileInfo();

 /**
 * Return json data to the browser
 * {
 * 'url' :'a.jpg', //The saved file path
 * 'title' :'hello', //File description, for pictures It will be added to the title attribute on the front end
 * 'original' :'b.jpg', //Original file name
 * 'state' :'SUCCESS' //Upload status, SUCCESS will be returned when successful, any other value will be returned as is to the picture upload box
 * }
*/

/* include "imgwater.php";
 $tpl=new image_fu;
 $tpl->img($info['url'],'http://www.zgxbzh.com/','simsun.ttc ',30,0);*/

 echo "{'url':'" . $info["url"] . "','title':'" . $title . "','original':' " . $info["originalName"] . "','state':'" . $info["state"] . "'}";