大家好,又见面了,我是全栈君。
百度编辑器竟然没有找到图片水印的功能,自己补充进去
修改/editor/php/config.json文件,在第11行后面,增加代码
"isWaterMark": true,/*水印*/
修改/editor/php/action_upload.php,在上传配置的代码中,修改如下
switch (htmlspecialchars($_GET['action'])) { case 'uploadimage': $config = array( "pathFormat" => $CONFIG['imagePathFormat'], "maxSize" => $CONFIG['imageMaxSize'], ..... ); $fieldName = $CONFIG['imageFieldName']; $watermark = $CONFIG['isWaterMark']; break;
主要增加$watermark = $CONFIG[‘isWaterMark’];
还是这个php文件,找到实例化上传类的代码,改为下面。
$up = new Uploader($fieldName, $config, $base64,$watermark);
在23行增加私有属性,
private $water;//水印
修改初始化函数的参数
public function __construct($fileField, $config, $type = "upload",$watermark = false)
在58行增加$this->water = $watermark;
在私有方法upFile的最下方增加一个判断,判断是不是要加水印
if( $this->water ){ $this->watermark($this->filePath,$this->filePath); }
在这个php类文件的最后面增加一个水印方法
/** * 图片加水印 * $source string 图片资源 * $target string 添加水印后的名字 * $w_pos int 水印位置安排(1-10)【1:左头顶;2:中间头顶;3:右头顶...值空:随机位置】 * $w_img string 水印图片路径 * $w_text string 显示的文字 * $w_font int 字体大小 * $w_color string 字体颜色 */ public function watermark($source, $target = '', $w_pos = '', $w_img = '', $w_text = '德州24小时',$w_font = 10, $w_color = '#CC0000') { $this->w_img = '../watermark.png';//水印图片 $this->w_pos = 9; $this->w_minwidth = 400;//最少宽度 $this->w_minheight = 200;//最少高度 $this->w_quality = 80;//图像质量 $this->w_pct = 85;//透明度 $w_pos = $w_pos ? $w_pos : $this->w_pos; $w_img = $w_img ? $w_img : $this->w_img; if(!$this->check($source)) return false; if(!$target) $target = $source; $source_info = getimagesize($source);//图片信息 $source_w = $source_info[0];//图片宽度 $source_h = $source_info[1];//图片高度 if($source_w < $this->w_minwidth || $source_h < $this->w_minheight) return false; switch($source_info[2]) { //图片类型 case 1 : //GIF格式 $source_img = imagecreatefromgif($source); break; case 2 : //JPG格式 $source_img = imagecreatefromjpeg($source); break; case 3 : //PNG格式 $source_img = imagecreatefrompng($source); //imagealphablending($source_img,false); //关闭混色模式 imagesavealpha($source_img,true); //设置标记以在保存 PNG 图像时保存完整的 alpha 通道信息(与单一透明色相反) break; default : return false; } if(!empty($w_img) && file_exists($w_img)) { //水印图片有效 $ifwaterimage = 1; //标记 $water_info = getimagesize($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); imagealphablending($water_img,false); imagesavealpha($water_img,true); break; default : return; } }else{ $ifwaterimage = 0; $temp = imagettfbbox(ceil($w_font*2.5), 0, '../../texb.ttf', $w_text); //imagettfbbox返回一个含有 8 个单元的数组表示了文本外框的四个角 $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+5); $wy = $source_h - ($height+5); 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, $target); //GIF 格式将图像输出到浏览器或文件(欲输出的图像资源, 指定输出图像的文件名) break; case 2 : imagejpeg($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($source_img); return true; }
还需要增加一个check方法判断图片属性
public function check($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])); }
当然还需要在editor文件夹下面传一张watermark.png水印图
ok 你可以加水印了
转载于:https://my.oschina.net/lambert519/blog/892490
发布者:全栈程序员-用户IM,转载请注明出处:https://javaforall.cn/108518.html原文链接:https://javaforall.cn
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