如何為百度編輯器新增圖片浮水印功能?前些日子把phpcms的內建編輯器改成了百度UE編輯器,非常好用,但是有個地方不是很滿意,就是沒法給上傳的圖片加水印了,經過一番研究終於實現了出來,分享給大家。希望對大家有幫助。
UEditor編輯器上傳圖片是自動擷取的,但是圖片沒有浮水印功能,下面小編和各位一起來看看。
UEditor編輯器沒有上傳圖片加浮水印的功能,需要進行二次開發,本例是在PHPCMS系統中對百度編輯器進行二次開發,加入上傳圖片加浮水印功能。
先打開UEditor編輯器檔案目錄的php資料夾,開啟Uploader.class.php,把PHPCMS加入浮水印的方法複製過來,加到這個類別所有成員方法最後面,然後進行修改如下:
//图片加水印 public function watermark($source, $target = '', $w_pos = '', $w_img = '', $w_text = '99danji',$w_font = 8, $w_color = '#ff0000') { $this->w_img = 'watermark.png'; $this->w_pos = 9; $this->w_minwidth = 400; $this->w_minheight = 200; $this->w_quality = 80; $this->w_pct = 85; $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), 0, 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_w - $width)); $wy = rand(0,($source_h - $height)); break; } if($ifwaterimage) { if($water_info[2] == 3) { imagecopy($source_img, $water_img, $wx, $wy, 0, 0, $width, $height); } else { imagecopymerge($source_img, $water_img, $wx, $wy, 0, 0, $width, $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,$wx,$wy,$w_text,imagecolorallocate($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' : $m[1])); }
對比我修改的部分,由於phpcms水印可以在後台管理設置,phpcms自帶的水印方法通過讀取配置文件獲取路徑,和讀取資料庫設定獲取參數設置,那麼這些地方就需要手動進行設定。
對了,在upFile方法還要加入一段函數:
#複製程式碼 程式碼如下:
#if ($this->watermark) {
$this->watermark($this->filePath,$this->filePath);
}
#然後開啟UEditor百度編輯器php目錄下的action_upload.php文件,加上是否加入浮水印的參數:
/* 上传配置 */ $base64 = "upload"; switch (htmlspecialchars($_GET['action'])) { case 'uploadimage': $config = array( "pathFormat" => $CONFIG['imagePathFormat'], "maxSize" => $CONFIG['imageMaxSize'], "allowFiles" => $CONFIG['imageAllowFiles'] ); $fieldName = $CONFIG['imageFieldName']; $watermark = true; break;
然後在後面還有一句要改成:
/* 生成上传实例对象并完成上传 */ $up = new Uploader($fieldName, $config, $base64, $watermark);
這樣就大功告成了,本文主要是提供想法和參考。
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