获取Umbraco缩略图图像文件大小 - umbracoBytes XSLT

Question

我试图获取ImageGen为图像库下载部分生成的缩略图jpg的文件大小。

我以前做过的一把umbraco 4.2，但我想更新我的XSLT和简化它一把umbraco 4.9

4.2版本的方法：

<xsl:value-of select="emint:GetFileSize(((memberGroupFunctions:GetFileSize(concat(substring-before($mediaNode/data [@alias='umbracoFile'],'.'), '_thumb_1200.jpg')) div 1024) div 1024))" /> 

我想要做的对于版本4.9：

<xsl:value-of select="emint:GetFileSize(((memberGroupFunctions:GetFileSize(concat(substring-before(umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoFile,'.'), '_thumb_1200.jpg')) div 1024) div 1024))" /> 

我不明白为什么它不起作用。原始图像被上传到媒体部分，它被切割成各种尺寸，包括1200和2400.然后使用媒体选择器数据类型在内容部分中选择原始图像。然后我将它和页面上的“拇指”版本显示为可下载链接。该链接包括图像的宽度，高度和文件大小。我无法获得在“拇指”图像上工作的文件大小！宽度和高度显示。但“拇指”图像的GetFileSize导致“错误解析XSLT文件”错误。的下载列表如何显示

<ul> 
     <li> 
      <a href="{concat(substring-before(umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoFile,'.'), '_thumb_1200.jpg')}" title="Medium"> 
       Medium - <xsl:value-of select="emint:GetThumbailFileDimensionWidth(1200, umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoHeight div 1, umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoWidth div 1)"/> x <xsl:value-of select="emint:GetThumbailFileDimensionHeight(1200, umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoHeight div 1, umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoWidth div 1)"/> px 
      <xsl:value-of select="emint:GetFileSize(((memberGroupFunctions:GetFileSize(concat(substring-before(umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoFile,'.'), '_thumb_1200.jpg')) div 1024) div 1024))" /> 
      </a> 


     </li> 
     <li> 
      <a href="{concat(substring-before(umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoFile,'.'), '_thumb_2400.jpg')}" title="Large"> 
       Large - <xsl:value-of select="emint:GetThumbailFileDimensionWidth(2400, umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoHeight div 1, umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoWidth div 1)"/> x <xsl:value-of select="emint:GetThumbailFileDimensionHeight(2400, umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoHeight div 1, umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoWidth div 1)"/> px 
       <xsl:value-of select="emint:GetFileSize((umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoBytes div 1024) div 1024)" /> 
      </a> 
     </li> 
     <li> 
      <a href="{umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoFile}" title="Original File"> 
       Original File - <xsl:value-of select="umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoWidth" /> x <xsl:value-of select="umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoHeight" /> px 
      - <xsl:value-of select="emint:GetFileSize((umbraco.library:GetMedia($currentPage/imageGalleryPhoto, 'false')/umbracoBytes div 1024) div 1024)" /> 
      </a> 
     </li> 
    </ul> 

例子：

• 中 - 1200 X 898像素 - 225 KB
• 大 - 2400 X 1797像素 - 777 KB
• 原始文件 - 6658 x 4984 px - 10.20 MB

这是我用于宽度，高度和文件大小转换的C＃脚本：

<msxsl:script language="C#" implements-prefix="emint"> 
<![CDATA[public string GetExtension(string fileName) 
    { 
    string[] terms = fileName.Split('.'); 
    if (terms.Length <= 0) 
    { 
    return string.Empty; 
    } 
    return terms[terms.Length -1]; 
    } 

    public string GetFileName(string fileName) 
    { 
    string[] terms = fileName.Split('/'); 
    if (terms.Length <= 0) 
    { 
    return string.Empty; 
    } 
    return terms[terms.Length -1]; 
    } 

    public string GetFileSize(Decimal mbs) 
    { 
    Decimal result = Decimal.Round(mbs, 2); 
    if (result == 0) 
    { 
    result = mbs * 1024; 
    return Decimal.Round(result, 2).ToString() + " KB"; 
    } 
    return result.ToString() + " MB"; 
    } 

    public Decimal GetThumbailSizeRatio(Decimal thumbnailSize, Decimal height, Decimal width) 
    { 
     Decimal ratio; 
     if (height >= width) 
     { 
      ratio = height/thumbnailSize; 
     } 
     else 
     { 
      ratio = width/thumbnailSize; 
     } 
     return ratio; 
    } 

    public string GetThumbailFileDimensionHeight(Decimal thumbnailSize, Decimal height, Decimal width) 
    { 
     Decimal ratio = GetThumbailSizeRatio(thumbnailSize, height, width); 
     return Decimal.Round((height/ratio), 0).ToString(); 
    } 

    public string GetThumbailFileDimensionWidth(Decimal thumbnailSize, Decimal height, Decimal width) 
    { 
     Decimal ratio = GetThumbailSizeRatio(thumbnailSize, height, width); 
     return Decimal.Round((width/ ratio), 0).ToString(); 
    } 

    public string GetCentimeters(Decimal pix) 
    { 
    Decimal formula = (decimal)0.026458333; 
    Decimal result = pix * formula; 
    return Decimal.Round(result,0).ToString(); 
    }]]> 

谁能帮助？

干杯，JV

Answer 1

你能用ImageGen来生成图像？

如果是的话，你必须安装ImageGenerator它是生成图像的任何大小相当有用的工具，你需要从开发部分在一把umbraco CMS安装在包。

此外，还有文档如何使用ImageGen Documentation，

我希望这将有助于