DZ2.5的经典图片水印插件

530761333 · 发表于 2012-4-17 02:04:38

Linux下测试成功.

<?php
Class Gimage{
var $src_image_name = ""; //输入图片的文件名(必须包含路径名)
var $jpeg_quality = 100; //jpeg图片质量
var $save_image_file = ''; //输出文件名
var $wm_image_name = ""; //水印图片的文件名(必须包含路径名)
var $wm_image_pos = 4; //水印图片放置的位置
// 0 = middle
// 1 = top left
// 2 = top right
// 3 = bottom right
// 4 = bottom left
var $wm_image_transition = 100; //水印图片与原图片的融合度 (1=100)
var $wm_text = ""; //水印文字(支持中文)
var $wm_text_size = 10; //水印文字大小
var $wm_text_angle = 0; //水印文字角度
var $wm_text_pos = 0; //水印文字放置位置
var $wm_text_font = ""; //水印文字的字体
function create($filename="")
{
if ($filename) $this->src_image_name = trim($filename);
$src_image_type = $this->get_type($this->src_image_name);
$src_image = $this->createImage($src_image_type,$this->src_image_name);
if (!$src_image) return;
$src_image_w=ImageSX($src_image);
$src_image_h=ImageSY($src_image);
if ($this->wm_image_name){
$this->wm_image_name = trim($this->wm_image_name);
$wm_image_type = $this->get_type($this->wm_image_name);
$wm_image = $this->createImage($wm_image_type,$this->wm_image_name);
$wm_image_w=ImageSX($wm_image);
$wm_image_h=ImageSY($wm_image);
$temp_wm_image = $this->getPos($src_image_w,$src_image_h,$this->wm_image_pos,$wm_image);
$wm_image_x = $temp_wm_image["dest_x"];
$wm_image_y = $temp_wm_image["dest_y"];
imageCopyMerge($src_image, $wm_image,$wm_image_x,$wm_image_y,0,0,$wm_image_w,$wm_image_h,$this->wm_image_transition);
}
if ($this->wm_text){
$temp_wm_text = $this->getPos($src_image_w,$src_image_h,$this->wm_text_pos);
$wm_text_x = $temp_wm_text["dest_x"];
$wm_text_y = $temp_wm_text["dest_y"];
$wm_text_color = imagecolorallocate($src_image, 255,255,255);
imagettftext($src_image, $this->wm_text_size, $this->wm_angle, $wm_text_x, $wm_text_y, $wm_text_color, ($this->wm_text_font), $this->wm_text);
}
if ($this->save_file)
{
switch ($this->output_type){
case 'gif':$src_img=ImagePNG($src_image, $this->save_file); break;
case 'jpeg':$src_img=ImageJPEG($src_image, $this->save_file, $this->jpeg_quality); break;
case 'png':$src_img=ImagePNG($src_image, $this->save_file); break;
default:$src_img=ImageJPEG($src_image, $this->save_file, $this->jpeg_quality); break;
}
}
else
{
if ($src_image_type = "jpg") $src_image_type="jpeg";
header("Content-type: image/{$src_image_type}");
switch ($src_image_type){
case 'gif':$src_img=ImagePNG($src_image); break;
case 'jpg':$src_img=ImageJPEG($src_image, "", $this->jpeg_quality);break;
case 'png':$src_img=ImagePNG($src_image);break;
default:$src_img=ImageJPEG($src_image, "", $this->jpeg_quality);break;
}
}
imagedestroy($src_image);
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
/*
createImage 根据文件名和类型创建图片
内部函数
$type: 图片的类型，包括gif,jpg,png
$img_name: 图片文件名，包括路径名，例如 " ./mouse.jpg"
*/
function createImage($type,$img_name){
if (!$type){
$type = $this->get_type($img_name);
}
switch ($type){
case 'gif':
if (function_exists('imagecreatefromgif'))
$tmp_img=@imagecreatefromgif($img_name);
break;
case 'jpg':
$tmp_img=imagecreatefromjpeg($img_name);
break;
case 'png':
$tmp_img=imageceatefrompng($img_name);
break;
default:
$tmp_img=imagecreatefromstring($img_name);
break;
}
return $tmp_img;
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
getPos 根据源图像的长、宽，位置代码，水印图片id来生成把水印放置到源图像中的位置
内部函数
$sourcefile_width: 源图像的宽
$sourcefile_height: 原图像的高
$pos: 位置代码
// 0 = middle
// 1 = top left
// 2 = top right
// 3 = bottom right
// 4 = bottom left
$wm_image: 水印图片ID
*/
function getPos($sourcefile_width,$sourcefile_height,$pos,$wm_image=""){
if ($wm_image){
$insertfile_width = ImageSx($wm_image);
$insertfile_height = ImageSy($wm_image);
}else {
$insertfile_width = 0;
$insertfile_height = 0;
}
if( $pos == 0 )
{
$dest_x = ( $sourcefile_width / 2 ) - ( $insertfile_width / 2 );
$dest_y = ( $sourcefile_height / 2 ) - ( $insertfile_height / 2 );
}
//top left
if( $pos == 1 )
{
$dest_x = 0;
$dest_y = 0;
}
//top right
if( $pos == 2 )
{
$dest_x = $sourcefile_width - $insertfile_width;
$dest_y = 0;
}
//bottom right
if( $pos == 3 )
{
$dest_x = $sourcefile_width - $insertfile_width;
$dest_y = $sourcefile_height - $insertfile_height;
}
//bottom left
if( $pos == 4 )
{
$dest_x = 0;
$dest_y = $sourcefile_height - $insertfile_height;
}
return array("dest_x"=>$dest_x,"dest_y"=>$dest_y);
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
get_type 获得图片的格式，包括jpg,png,gif
内部函数
$img_name：图片文件名，可以包括路径名
*/
function get_type($img_name)//获取图像文件类型
{
$name_array = explode(".",$img_name);
if (preg_match("/\.(jpg|jpeg|gif|png)$/", $img_name, $matches))
{
$type = $matches[1];
}
else
{
$type = "string";
}
return $type;
}
}
?>
2、把需要的字体文件放到"c:\winnt\fonts"目录中，如果没有这个目录就建立一个，否则无法使用字体。至于unix类的服务器则不需要
3、打开/include/post.php
在第二行添加
复制代码
require $discuz_root.'./include/imgmark.php';
找到
复制代码
if(!$attach_saved && @is_readable($attach)) {
@$fp = fopen($attach, 'rb');
@flock($fp, 2);
@$attachedfile = fread($fp, $attach_size);
@fclose($fp);
@$fp = fopen($target, 'wb');
@flock($fp, 2);
if(@fwrite($fp, $attachedfile)) {
$attach_saved = true;
}
@fclose($fp);
}
在下面增加
复制代码
if(in_array($extension, array('jpg','gif','png'))) {
echo $discuz_root;
$tmp_image = new Gimage();
//$tmp_image->wm_text="Upload By SzBar.com";//要显示在图片中的文字信息
$tmp_image->wm_image_name= "[img]http://www.verysz.com/image/water.jpg[/img]";//要显示在图片中的水印图片名称，包括路径名
$tmp_image->wm_text_font = 'arial';//水印文字的字体，也就是在c:/winnt/fonts中的字体文件名
$tmp_image->save_file=$target;
$tmp_image->create($target);
}

复制代码

完成！

说明：
如果要用文字水印请把这么代码前面的//去掉
--------------------------------------------------------------------------------

//$tmp_image->wm_text="Upload By SzBar.com";
然后在这段代码前面加上//
如果系统找不到你所设置的字体，则自动用“宋体”代替。

添加水印的位置是可以修改的，请打开imgmark.php按提示修改就可以了！

我的小情情2 · 发表于 2012-4-17 02:25:23

这是真的吗？太好了，谢谢您啊

我的小情情2 · 发表于 2012-4-17 02:25:55

真的吗？太好了，非常喜欢

二号 · 发表于 2012-4-17 02:26:14

提示: 作者被禁止或删除内容自动屏蔽

我的小情情2 · 发表于 2012-4-17 02:26:27

看帖子的都发表一下看法

我的小情情2 · 发表于 2012-4-17 02:27:04

百度对你友好了

牛站长牛 · 发表于 2012-4-17 02:27:26

提示: 作者被禁止或删除内容自动屏蔽

我的小情情2 · 发表于 2012-4-17 02:27:37

顶而不懈，遇到好贴决不能放过

我的小情情2 · 发表于 2012-4-17 02:28:13

强烈感谢楼主

530761333 · 发表于 2012-4-17 14:24:36

不客气

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[发布] DZ2.5的经典图片水印插件