包罗万象的织梦CMS的图片处理类库

各位朋友大家好!

今天给大家带来的是一款 包罗万象的织梦CMS的图片处理类库！

包含：1.生成缩略图 2.图片水印 3.使用gd生成缩略图 4.使用gd进行水印

• 由于源码比较多，想要源文件的朋友 可以私聊小编哦！

好了，废话不多说！上源码！

<?php if(!defined("DEDEINC")) exit("dedecms");

/**

* 图像处理类

*

* @version $Id: image.class.php 1 18:10 2010年7月5日Z tianya $

* @package DedeCMS.Libraries

* @copyright Copyright (c) 2007 - 2010, DesDev, Inc.

* @license http://help.dedecms.com/usersguide/license.html

* @link http://www.dedecms.com

*/

class image

{

var $attachinfo;

var $targetfile; //图片路径

var $imagecreatefromfunc;

var $imagefunc;

var $attach;

var $animatedgif;

var $watermarkquality;

var $watermarktext;

var $thumbstatus;

var $watermarkstatus;

// 析构函数,兼容PHP4

function image($targetfile, $cfg_thumb, $cfg_watermarktext, $photo_waterpos, $photo_diaphaneity, $photo_wheight, $photo_wwidth, $cfg_watermarktype, $photo_marktrans,$trueMarkimg, $attach = array())

{

$this->__construct($targetfile, $cfg_thumb, $cfg_watermarktext, $photo_waterpos, $photo_diaphaneity, $photo_wheight, $photo_wwidth, $cfg_watermarktype, $photo_marktrans,$trueMarkimg, $attach);

}

// 析构函数

function __construct($targetfile, $cfg_thumb, $cfg_watermarktext, $photo_waterpos, $photo_diaphaneity, $photo_wheight, $photo_wwidth, $cfg_watermarktype, $photo_marktrans,$trueMarkimg, $attach = array())

{

$this->thumbstatus = $cfg_thumb;

$this->watermarktext = $cfg_watermarktext;

$this->watermarkstatus = $photo_waterpos;

$this->watermarkquality = $photo_marktrans;

$this->watermarkminwidth = $photo_wwidth;

$this->watermarkminheight = $photo_wheight;

$this->watermarktype = $cfg_watermarktype;

$this->watermarktrans = $photo_diaphaneity;

$this->animatedgif = 0;

$this->targetfile = $targetfile;

$this->attachinfo = @getimagesize($targetfile);

$this->attach = $attach;

switch($this->attachinfo["mime"])

{

case "image/jpeg":

$this->imagecreatefromfunc = function_exists("imagecreatefromjpeg") ? "imagecreatefromjpeg" : "";

$this->imagefunc = function_exists("imagejpeg") ? "imagejpeg" : "";

break;

case "image/gif":

$this->imagecreatefromfunc = function_exists("imagecreatefromgif") ? "imagecreatefromgif" : "";

$this->imagefunc = function_exists("imagegif") ? "imagegif" : "";

break;

case "image/png":

$this->imagecreatefromfunc = function_exists("imagecreatefrompng") ? "imagecreatefrompng" : "";

$this->imagefunc = function_exists("imagepng") ? "imagepng" : "";

break;

}//为空则匹配类型的函数不存在

$this->attach["size"] = empty($this->attach["size"]) ? @filesize($targetfile) : $this->attach["size"];

if($this->attachinfo["mime"] == "image/gif")

{

$fp = fopen($targetfile, "rb");

$targetfilecontent = fread($fp, $this->attach["size"]);

fclose($fp);

$this->animatedgif = strpos($targetfilecontent, "NETSCAPE2.0") === false ? 0 : 1;

}

}

/**

* 生成缩略图

*

* @access public

* @param int $thumbwidth 图片宽度

* @param int $thumbheight 图片高度

* @param int $preview 是否预览

* @return void

*/

function thumb($thumbwidth, $thumbheight, $preview = 0)

{

$this->thumb_gd($thumbwidth, $thumbheight, $preview);

if($this->thumbstatus == 2 && $this->watermarkstatus)

{

$this->image($this->targetfile, $this->attach);

$this->attach["size"] = filesize($this->targetfile);

}

}

/**

* 图片水印

*

* @access public

* @param int $preview 是否预览

* @return void

*/

function watermark($preview = 0)

{

if($this->watermarkminwidth && $this->attachinfo[0] <= $this->watermarkminwidth && $this->watermarkminheight && $this->attachinfo[1] <= $this->watermarkminheight)

{

return ;

}

$this->watermark_gd($preview);

}

/**

* 使用gd生成缩略图

*

* @access public

* @param int $thumbwidth 图片宽度

* @param int $thumbheight 图片高度

* @param int $preview 是否预览

* @return void

*/

function thumb_gd($thumbwidth, $thumbheight, $preview = 0)

{

if($this->thumbstatus && function_exists("imagecreatetruecolor") && function_exists("imagecopyresampled") && function_exists("imagejpeg"))

{

$imagecreatefromfunc = $this->imagecreatefromfunc;

$imagefunc = $this->thumbstatus == 1 ? "imagejpeg" : $this->imagefunc;

list($imagewidth, $imageheight) = $this->attachinfo;

if(!$this->animatedgif && ($imagewidth >= $thumbwidth || $imageheight >= $thumbheight))

{

$attach_photo = $imagecreatefromfunc($this->targetfile);

$x_ratio = $thumbwidth / $imagewidth;

$y_ratio = $thumbheight / $imageheight;

if(($x_ratio * $imageheight) < $thumbheight)

{

$thumb["height"] = ceil($x_ratio * $imageheight);

$thumb["width"] = $thumbwidth;

}

else

{

$thumb["width"] = ceil($y_ratio * $imagewidth);

$thumb["height"] = $thumbheight;

}

$targetfile = !$preview ? ($this->thumbstatus == 1 ? $this->targetfile.".thumb.jpg" : $this->targetfile) : "./watermark_tmp.jpg";

$thumb_photo = imagecreatetruecolor($thumb["width"], $thumb["height"]);

imagecopyresampled($thumb_photo, $attach_photo, 0, 0, 0, 0, $thumb["width"], $thumb["height"], $imagewidth, $imageheight);

if($this->attachinfo["mime"] == "image/jpeg")

{

$imagefunc($thumb_photo, $targetfile, 100);

}

else

{

$imagefunc($thumb_photo, $targetfile);

}

$this->attach["thumb"] = $this->thumbstatus == 1 ? 1 : 0;

}

}

}

/**

* 使用gd进行水印

*

* @access public

* @param int $preview 是否预览

* @return void

*/

function watermark_gd($preview = 0)

{

if($this->watermarkstatus && function_exists("imagecopy") && function_exists("imagealphablending") && function_exists("imagecopymerge"))

{

$imagecreatefunc = $this->imagecreatefromfunc;

$imagefunc = $this->imagefunc;

list($imagewidth, $imageheight) = $this->attachinfo;

if($this->watermarktype < 2)

{

$watermark_file = $this->watermarktype == 1 ? DEDEDATA."/mark/mark.png" : DEDEDATA."/mark/mark.gif";

$watermarkinfo = @getimagesize($watermark_file);

$watermark_logo = $this->watermarktype == 1 ? @imagecreatefrompng($watermark_file) : @imagecreatefromgif($watermark_file);

if(!$watermark_logo)

{

return ;

}

list($logowidth, $logoheight) = $watermarkinfo;

}

else

{

$box = @imagettfbbox($this->watermarktext["size"], $this->watermarktext["angle"], $this->watermarktext["fontpath"],$this->watermarktext["text"]);

$logowidth = max($box[2], $box[4]) - min($box[0], $box[6]);

$logoheight = max($box[1], $box[3]) - min($box[5], $box[7]);

$ax = min($box[0], $box[6]) * -1;

$ay = min($box[5], $box[7]) * -1;

}

$wmwidth = $imagewidth - $logowidth;

$wmheight = $imageheight - $logoheight;

if(($this->watermarktype < 2 && is_readable($watermark_file) || $this->watermarktype == 2) && $wmwidth > 10 && $wmheight > 10 && !$this->animatedgif)

{

switch($this->watermarkstatus)

{

case 1:

$x = +5;

$y = +5;

break;

case 2:

$x = ($imagewidth - $logowidth) / 2;

$y = +5;

break;

case 3:

$x = $imagewidth - $logowidth - 5;

$y = +5;

break;

case 4:

$x = +5;

$y = ($imageheight - $logoheight) / 2;

break;

case 5:

$x = ($imagewidth - $logowidth) / 2;

$y = ($imageheight - $logoheight) / 2;

break;

case 6:

$x = $imagewidth - $logowidth - 5;

$y = ($imageheight - $logoheight) / 2;

break;

case 7:

$x = +5;

$y = $imageheight - $logoheight - 5;

break;

case 8:

$x = ($imagewidth - $logowidth) / 2;

$y = $imageheight - $logoheight - 5;

break;

case 9:

$x = $imagewidth - $logowidth - 5;

$y = $imageheight - $logoheight -5;

break;

}

$dst_photo = @imagecreatetruecolor($imagewidth, $imageheight);

$target_photo = $imagecreatefunc($this->targetfile);

imagecopy($dst_photo, $target_photo, 0, 0, 0, 0, $imagewidth, $imageheight);

if($this->watermarktype == 1)

{

imagecopy($dst_photo, $watermark_logo, $x, $y, 0, 0, $logowidth, $logoheight);

}