一个超级强大的图片加水印的类(7)

        $this -> waterImg_info[1]); 

        $pct = $this -> transparent; 

        imagecopy($cut, $this -> water_im, 0, 0, 0, 0, $this -> waterImg_info[0],  

        $this -> waterImg_info[1]); 

        //将图片与水印图片合成 

        imagecopymerge($this -> im, $cut, $this -> x, $this -> y, 0, 0, $this -> waterImg_info[0], $this -> waterImg_info[1], $pct); 

    } 

    /**

     * 加文字水印

     */ 

    private function waterstr () 

    { 

        $rect = imagettfbbox($this -> fontSize, 0, $this -> fontFile, $this -> waterStr); 

        $w = abs($rect[2] - $rect[6]); 

        $h = abs($rect[3] - $rect[7]); 

        $fontHeight = $this -> fontSize; 

        $this -> water_im = imagecreatetruecolor($w, $h); 

        imagealphablending($this -> water_im, false); 

        imagesavealpha($this -> water_im, true); 

        $white_alpha = imagecolorallocatealpha($this -> water_im, 255, 255, 255, 127); 

        imagefill($this -> water_im, 0, 0, $white_alpha); 

        $color = imagecolorallocate($this -> water_im, $this -> fontColor[0], $this -> fontColor[1],  

        $this -> fontColor[2]); 

        imagettftext($this -> water_im, $this -> fontSize, 0, 0, $this -> fontSize, $color,  

        $this -> fontFile, $this -> waterStr); 

        $this -> waterImg_info = array ( 

            0 => $w, 1 => $h 

        ); 

        $this->waterimg(); 

    } 

    /**

     * 水印图片输出

     */ 

    public function output () 

    { 

        $this->imginfo();