织梦图集 上传图片小于设定尺寸 缩略图生成失败的解决办法

织梦图集中,上传的图片像素宽高小于系统设置定的这个尺寸:
较小的这些图片就会无法生成缩略图,导致图集在网页上缩略图显示X叉号,这应该是织梦DEDEcms的一个历史遗漏bug,可用下面方法修复。
/include/helpers/,这个文件中搜索,下面的代码:
  1. if($srcW<=$toW && $srcH<=$toH ) return TRUE;
  2.         $toWH=$toW/$toH;
  3.         $srcWH=$srcW/$srcH;
  4.         if($toWH<=$srcWH)
  5.        {
  6.             $ftoW=$toW;
  7.             $ftoH=$ftoW*($srcH/$srcW);
  8.         }
  9.         else
  10.         {
  11.             $ftoH=$toH;
  12.             $ftoW=$ftoH*($srcW/$srcH);
  13.         }
然后用下面的大片代码替换:
  1. $ftoW=$toH;
  2. [size=; font-size: inherit,inherit]                $ftoH=$toH;
  3.         ///
  4. [size=; font-size: inherit,inherit]        if( $srcH<=$toH &&  $srcW<=$toW )
  5. [size=; font-size: inherit,inherit]            {
  6. [size=; font-size: inherit,inherit]                $ftoW=$srcW;
  7. [size=; font-size: inherit,inherit]                $ftoH=$srcH;
  8. [size=; font-size: inherit,inherit]                if(function_exists(“imagecreatetruecolor”))
  9. [size=; font-size: inherit,inherit]                {
  10. [size=; font-size: inherit,inherit]                    @$ni = imagecreatetruecolor($ftoW,$ftoH);
  11. [size=; font-size: inherit,inherit]                    if($ni)
  12. [size=; font-size: inherit,inherit]                    {
  13. [size=; font-size: inherit,inherit]                    imagecopyresampled($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
  14. [size=; font-size: inherit,inherit]                    }
  15. [size=; font-size: inherit,inherit]                    else
  16. [size=; font-size: inherit,inherit]                    {
  17. [size=; font-size: inherit,inherit]                    $ni=imagecreate($ftoW,$ftoH);
  18. [size=; font-size: inherit,inherit]                    imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
  19. [size=; font-size: inherit,inherit]                    }
  20. [size=; font-size: inherit,inherit]                    }
  21. [size=; font-size: inherit,inherit]                else
  22. [size=; font-size: inherit,inherit]                {
  23. [size=; font-size: inherit,inherit]                    $ni=imagecreate($ftoW,$ftoH);
  24. [size=; font-size: inherit,inherit]                    imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
  25. [size=; font-size: inherit,inherit]                }
  26. [size=; font-size: inherit,inherit]                switch ($srcInfo[2])
  27. [size=; font-size: inherit,inherit]                {
  28. [size=; font-size: inherit,inherit]                    case 1:
  29. [size=; font-size: inherit,inherit]                    imagegif($ni,$toFile);
  30. [size=; font-size: inherit,inherit]                    break;
  31. [size=; font-size: inherit,inherit]                    case 2:
  32. [size=; font-size: inherit,inherit]                    imagejpeg($ni,$toFile,100);
  33. [size=; font-size: inherit,inherit]                    break;
  34. [size=; font-size: inherit,inherit]                    case 3:
  35. [size=; font-size: inherit,inherit]                    imagepng($ni,$toFile);
  36. [size=; font-size: inherit,inherit]                    break;
  37. [size=; font-size: inherit,inherit]                    case 6:
  38. [size=; font-size: inherit,inherit]                    imagebmp($ni,$toFile);
  39. [size=; font-size: inherit,inherit]                    break;
  40. [size=; font-size: inherit,inherit]                    default:
  41. [size=; font-size: inherit,inherit]                    return false;
  42. [size=; font-size: inherit,inherit]                }
  43. [size=; font-size: inherit,inherit]                imagedestroy($ni);
  44. [size=; font-size: inherit,inherit]            } ///
  45.        $toWH=$toW/$toH;
  46.        $srcWH=$srcW/$srcH;
  47.        if($toWH<=$srcWH)
  48.        {
  49.             $ftoW=$toW;
  50.             $ftoH=$ftoW*($srcH/$srcW);
  51.         }
  52.         else
  53.         {
  54.             $ftoH=$toH;
  55.             $ftoW=$ftoH*($srcW/$srcH);
  56.        }
这样织梦上传的图,就不会显示x号了。希望可以帮助到你。