DEDECMS 图片水印类使用方法和图片处理类的源码

//生成水印图片
//new image('图片地址', 0, '文字设置略因为用图片', 水印位置, '透明度','易做图水印高度','易做图宽度','0gif 1png ',‘水印质量’, ‘水印图片’);
$trueMarkimg = DEDEROOT.'/data/mark/mark.png'; //水印图片logo绝对路径
$img = new image($user_upload_pic, 0, '', 9, 85, 0, 0, 1, 85,$trueMarkimg);
$img->watermark(0);
水印位置是 123 456 789 左下为7 右下角为9
水印高度宽度为0 为不易做图。

类的源文件如下:image.class.php

<?php
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;

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);
}

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;
  }
}

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);
  }
}

function watermark($preview = 0)
{
  if($this->watermarkminwidth && $this->attachinfo[0] <= $this->watermarkminwidth && $this->watermarkminheight && $this->attachinfo[1] <= $this->watermarkminheight)
  {
   return ;
  }
  $this->watermark_gd($preview);
}

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;
   }
  }
}

      $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, $logoheight);
    }
    elseif($this->watermarktype == 2)
    {
     if(($this->watermarktext['shadowx'] || $this->watermarktext['shadowy']) && $this->watermarktext['shadowcolor'])
     {
      $shadowcolorrgb = explode(',', $this->watermarktext['shadowcolor']);
      $shadowcolor = imagecolorallocate($dst_photo, $shadowcolorrgb[0], $shadowcolorrgb[1], $shadowcolorrgb[2]);
      imagettftext($dst_photo, $this->watermarktext['size'], $this->watermarktext['angle'],
      $x + $ax + $this->watermarktext['shadowx'], $y + $ay + $this->watermarktext['shadowy'], $shadowcolor,
      $this->watermarktext['fontpath'], $this->watermarktext['text']);
     }
     $colorrgb = explode(',', $this->watermarktext['color']);
     $color = imagecolorallocate($dst_photo, $colorrgb[0], $colorrgb[1], $colorrgb[2]);
     imagettftext($dst_photo, $this->watermarktext['size'], $this->watermarktext['angle'],
     $x + $ax, $y + $ay, $color, $this->watermarktext['fontpath'], $this->watermarktext['text']);
    }
    else
    {
     imagealphablending($watermark_logo, true);
     imagecopymerge($dst_photo, $watermark_logo, $x, $y, 0, 0, $logowidth, $logoheight, $this->watermarktrans);
    }
    $targetfile = !$preview ? $this->targetfile : './watermark_tmp.jpg';
    if($this->attachinfo['mime'] == 'image/jpeg')
    {
     $imagefunc($dst_photo, $targetfile, $this->watermarkquality);
    }
    else
    {
     $imagefunc($dst_photo, $targetfile);
    }
    $this->attach['size'] = filesize($this->targetfile);
   }
  }
}
}
?>

DEDECMS 图片水印类使用方法 和图片处理类的源码

DEDECMS 图片水印类使用方法和图片处理类的源码