本次针对百度编辑器Ueditor1.3.4
打开ueditor目录下的php目录下的config.json 文件,在上传配置项添加下面代码:
"iswatermark": "true", /* 图片上传水印 */
打开ueditor目录下的php目录下的action_upload.php文件
(1)搜索代码
case 'uploadimage':
$config = array(
"pathFormat" => $CONFIG['imagePathFormat'],
"maxSize" => $CONFIG['imageMaxSize'],
"allowFiles" => $CONFIG['imageAllowFiles']
);
$fieldName = $CONFIG['imageFieldName'];
break;
在“break;”前添加
$watermark = $CONFIG['iswatermark'];
这句话就可以读取配置文件的”iswatermark”值了。
(2)继续在这个文件搜索代码:
$up = new Uploader($fieldName, $config, $base64);
将其修改为:
$up = new Uploader($fieldName, $config, $base64, $watermark);
这样就可以实例化Uploader类时带上$watermark变量。
3、这是最后一步,也是最重要的一步,打开ueditor目录下的php目录下的Uploader.class.php文件。
(1)在class Uploader类里加
private $water; //是否添加水印(属性)
(2)把构造函数的
public function __construct($fileField, $config, $type = "upload" )
改为 (我这里直接改的$watermark=true)
public function __construct($fileField, $config, $type = "upload", $watermark = false )
并且在构造函数里加上
$this->water = $watermark;
在upFile 方法内部后面添加以下代码:
if( $this->water ){
$this->watermark($this->filePath,$this->filePath);
}
(4)在这个类文件里添加以下方法,实现图片添加水印就靠它了
/**
* 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 = '', $w_text = 'www.ityang.com',$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($w_img,false);
imagesavealpha($w_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($source_img);
return true;
}
public function check($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]));
}
4、 把水印图片命名为watermark.pngh或其他,把它存放在ueditor目录下,字体文件texb.ttf
也放该目录下。如果你觉得这样不好,那么你在步骤3.4时候就写你水印图片的路径,温馨提醒一下:ueditor目录下的php目录是当前目录(./),上级目录即为../ ,再上就是../../ ,以此类推。
PS:以上是别人写的方法,我整理了一下,测试了在百度编辑器1.4.3版里是可以用的。感谢原作者!