public static ITagProcessorFactory GetSvgTagProcessorFactory()
{
DefaultTagProcessorFactory factory = new DefaultTagProcessorFactory();
factory.AddProcessor(HTML.Tag.XML, dummyTagProcessor);
factory.AddProcessor("!doctype", dummyTagProcessor);
factory.AddProcessor(SvgTagNames.SVG, svgpackage + "SvgTag");
factory.AddProcessor(SvgTagNames.DEFS, svgpackage + "DefsTag");
factory.AddProcessor(SvgTagNames.CIRCLE, svgpackage + "CircleTag");
factory.AddProcessor(SvgTagNames.PATH, svgpackage + "PathTag");
factory.AddProcessor(SvgTagNames.GROUP, svgpackage + "GroupTag");
factory.AddProcessor(SvgTagNames.RECTANGLE, svgpackage + "RectangleTag");
factory.AddProcessor(SvgTagNames.ELLIPSE, svgpackage + "EllipseTag");
factory.AddProcessor(SvgTagNames.LINE, svgpackage + "LineTag");
factory.AddProcessor(SvgTagNames.POLYLINE, svgpackage + "PolyTag");
factory.AddProcessor(SvgTagNames.POLYGON, svgpackage + "PolyTag");
factory.AddProcessor(SvgTagNames.SYMBOL, svgpackage + "SymbolTag");
factory.AddProcessor(SvgTagNames.USE, svgpackage + "UseTag");
factory.AddProcessor(SvgTagNames.TEXT, svgpackage + "TextTag");
factory.AddProcessor(SvgTagNames.TSPAN, svgpackage + "TextSpanTag");
factory.AddProcessor(SvgTagNames.TEXTPATH, svgpackage + "TextPathTag");
factory.AddProcessor(HTML.Tag.STYLE, "com.itextpdf.tool.xml.html.head.Style");
return(factory);
}
/// <summary>
/// 產生PDF byte[]
/// </summary>
/// <param name="htmlText"></param>
/// <param name="ds"></param>
/// <param name="exportFile">匯出檔案</param>
/// <returns></returns>
public FileContentResult exportPDF(string htmlText, IDocSetting ds, bool exportFile = false)
{
byte[] buf = null;
string actionName = "exportPDF";
setFileContentType(fileType.pdf);
try
{
if (string.IsNullOrEmpty(htmlText))
{
return(null);
}
//避免當htmlText無任何html tag標籤的純文字時，轉PDF時會掛掉，所以一律加上<p>標籤
//htmlText = "<p>" + htmlText + "</p>";
string[] pageHtml = System.Text.RegularExpressions.Regex.Split(htmlText, ds.pageSplit);
Document doc = new Document(iTextSharp.text.PageSize.A4);//要寫PDF的文件，建構子沒填的話預設直式A4
if (ds.SetMargins)
{
doc.SetMargins(ds.marginLeft, ds.marginRight, ds.marginTop, ds.marginBottom);
}
//指定文件預設開檔時的縮放為100%
PdfDestination pdfDest = new PdfDestination(PdfDestination.XYZ, 0, doc.PageSize.Height, 1f);
//開啟Document文件
MemoryStream outputStream = new MemoryStream();//要把PDF寫到哪個串流
PdfWriter writer = PdfWriter.GetInstance(doc, outputStream);
doc.Open();
foreach (string str in pageHtml)
{
if (str == "\r\n" && pageHtml.Length > 1)
{
continue;
}
doc.NewPage();
int page = 1;
string text = string.Format("{0}" + str + "{1}", "<p>", "</p>");
byte[] data = Encoding.UTF8.GetBytes(text);//字串轉成byte[]
MemoryStream msInput = new MemoryStream(data);
//使用XMLWorkerHelper把Html parse到PDF檔裡
Stream fs = null;
string sourcePath = "";
string sourceFile = "";
if (!string.IsNullOrWhiteSpace(ds.cssFile))
{
sourcePath = System.Web.Hosting.HostingEnvironment.MapPath("~\\StyleSheet\\");
sourceFile = System.IO.Path.Combine(sourcePath, ds.cssFile);
fs = System.IO.File.OpenRead(sourceFile);
}
/*------------------------- Cxr繪圖 2018.09.13 [下] -------------------------*/
#region Cxr
//1.版面配置CSS
CssFilesImpl cssFiles = new CssFilesImpl();
cssFiles.Add(XMLWorkerHelper.GetCSS(File.OpenRead(sourceFile))); // [File.OpenRead] 新增 [StyleAttrCSSResolver]
StyleAttrCSSResolver cssResolver = new StyleAttrCSSResolver(cssFiles);
//2.重新撰寫底層Image功能Tag
DefaultTagProcessorFactory tagProcessors = (DefaultTagProcessorFactory)Tags.GetHtmlTagProcessorFactory();
tagProcessors.RemoveProcessor(HTML.Tag.IMG); // remove the default processor
tagProcessors.AddProcessor(HTML.Tag.IMG, new CustomImageTagProcessor()); // use new processor
//3.重新編譯
//HtmlPipelineContext hpc = new HtmlPipelineContext(new CssAppliersImpl(new XMLWorkerFontProvider()));
HtmlPipelineContext hpc = new HtmlPipelineContext(new CssAppliersImpl(new UnicodeFontFactory()));
hpc.SetAcceptUnknown(true).AutoBookmark(true).SetTagFactory(tagProcessors); // inject the tagProcessors
HtmlPipeline htmlPipeline = new HtmlPipeline(hpc, new PdfWriterPipeline(doc, writer));
CssResolverPipeline pipeline = new CssResolverPipeline(cssResolver, htmlPipeline);
XMLWorker worker = new XMLWorker(pipeline, true);
XMLParser xmlParser = new XMLParser(true, worker, Encoding.UTF8);
xmlParser.Parse(new StringReader(text));
#endregion
/*------------------------- Cxr繪圖 2018.09.13 [上] -------------------------*/
/* 2018.09.13 恢復舊有功能
* //使用XMLWorkerHelper把Html parse到PDF檔裡
* XMLWorkerHelper.GetInstance().ParseXHtml(writer, doc, msInput, fs, Encoding.UTF8, new UnicodeFontFactory());
* //將pdfDest設定的資料寫到PDF檔
* PdfAction action = PdfAction.GotoLocalPage(page, pdfDest, writer);
* writer.SetOpenAction(action);
*/
msInput.Close();
page++;
}
doc.Close();
outputStream.Close();
//回傳PDF檔案
buf = outputStream.ToArray();
}
catch (Exception ex)
{
RESPONSE_MSG.message = "產生PDF發生錯誤，請洽資訊人員，錯誤訊息如下所示:" + ex.Message;
RESPONSE_MSG.status = RESPONSE_STATUS.EXCEPTION;
LogTool.SaveLogMessage(ex, actionName, csName);
}
return(retunFile(buf));
}
