C# html.HtmlPipelineContext类代码示例

        public byte[] GeneratePdfFromView(string viewString, string[] cssPaths, string fontPath)
        {
            using (var memoryStream = new MemoryStream())
            {
                var doc = new Document(PageSize.A4);
                var writer = PdfWriter.GetInstance(doc, memoryStream);

                doc.Open();

                var tagProcessors = InitializeTagProcessor();
                var cssResolver = InitializeCssFiles(cssPaths);

                var fontProvider = new CustomFontFactory(fontPath);

                var hpc = new HtmlPipelineContext(new CssAppliersImpl(fontProvider));
                hpc.SetAcceptUnknown(true).AutoBookmark(true).SetTagFactory(tagProcessors);

                var htmlPipeline = new HtmlPipeline(hpc, new PdfWriterPipeline(doc, writer));
                var pipeline = new CssResolverPipeline(cssResolver, htmlPipeline);

                var worker = new XMLWorker(pipeline, true);
                var xmlParser = new XMLParser(true, worker, Encoding.Unicode);
                xmlParser.Parse(new StringReader(viewString));

                doc.Close();
                return memoryStream.ToArray();
            }
        }

        virtual public void SetUp() {
            parent = new Tag("body");
            parent.CSS[CSS.Property.FONT_FAMILY] = "Helvetica";
            parent.CSS[CSS.Property.FONT_SIZE] = "12pt";
            first = new Tag(null);
            first.CSS[CSS.Property.FONT_FAMILY] = "Helvetica";
            first.CSS[CSS.Property.FONT_SIZE] = "12pt";
            second = new Tag(null);
            second.CSS[CSS.Property.FONT_FAMILY] = "Helvetica";
            second.CSS[CSS.Property.FONT_SIZE] = "12pt";
            child = new Tag(null);
            child.CSS[CSS.Property.FONT_FAMILY] = "Helvetica";
            child.CSS[CSS.Property.FONT_SIZE] = "12pt";

            parent.AddChild(first);
            first.Parent = parent;
            second.Parent = parent;
            first.AddChild(child);
            second.AddChild(child);
            parent.CSS[CSS.Property.FONT_SIZE] = fst.TranslateFontSize(parent) + "pt";
            first.CSS[CSS.Property.FONT_SIZE] = fst.TranslateFontSize(first) + "pt";
            first.CSS[CSS.Property.TEXT_ALIGN] = CSS.Value.LEFT;
            second.CSS[CSS.Property.FONT_SIZE] = fst.TranslateFontSize(second) + "pt";
            child.CSS[CSS.Property.FONT_SIZE] = fst.TranslateFontSize(child) + "pt";
            firstPara = new Paragraph(new Chunk("default text for chunk creation"));
            secondPara = new Paragraph(new Chunk("default text for chunk creation"));
            configuration = new HtmlPipelineContext(null);
            applier.Apply(firstPara, first, configuration);
        }

        protected override void MakePdf(string outPdf) {
            Document doc = new Document(PageSize.A4.Rotate());
            PdfWriter pdfWriter = PdfWriter.GetInstance(doc, new FileStream(outPdf, FileMode.Create));
            doc.SetMargins(45, 45, 0, 100);
            doc.Open();


            CssFilesImpl cssFiles = new CssFilesImpl();
            cssFiles.Add(
                XMLWorkerHelper.GetCSS(
                    File.OpenRead(RESOURCES + Path.DirectorySeparatorChar + testPath + Path.DirectorySeparatorChar + testName +
                                  Path.DirectorySeparatorChar + "complexDiv_files" + Path.DirectorySeparatorChar +
                                  "main.css")));
            cssFiles.Add(
                XMLWorkerHelper.GetCSS(
                    File.OpenRead(RESOURCES + Path.DirectorySeparatorChar + testPath + Path.DirectorySeparatorChar + testName +
                                  Path.DirectorySeparatorChar + "complexDiv_files" + Path.DirectorySeparatorChar +
                                  "widget082.css")));
            StyleAttrCSSResolver cssResolver = new StyleAttrCSSResolver(cssFiles);
            HtmlPipelineContext hpc =
                new HtmlPipelineContext(
                    new CssAppliersImpl(new XMLWorkerFontProvider(RESOURCES + @"\tool\xml\examples\fonts")));
            hpc.SetAcceptUnknown(true).AutoBookmark(true).SetTagFactory(Tags.GetHtmlTagProcessorFactory());
            hpc.SetImageProvider(new SampleTestImageProvider());
            hpc.SetPageSize(doc.PageSize);
            HtmlPipeline htmlPipeline = new HtmlPipeline(hpc, new PdfWriterPipeline(doc, pdfWriter));
            IPipeline pipeline = new CssResolverPipeline(cssResolver, htmlPipeline);
            XMLWorker worker = new XMLWorker(pipeline, true);
            XMLParser p = new XMLParser(true, worker, Encoding.GetEncoding("UTF-8"));
            p.Parse(File.OpenRead(inputHtml), Encoding.GetEncoding("UTF-8"));
            doc.Close();
        }

        protected override void TransformHtml2Pdf() {
            Document doc = new Document(PageSize.A1.Rotate());
            PdfWriter pdfWriter = PdfWriter.GetInstance(doc, new FileStream(outPdf, FileMode.Create));
            doc.SetMargins(doc.LeftMargin - 10, doc.RightMargin - 10, doc.TopMargin, doc.BottomMargin);
            doc.Open();


            CssFilesImpl cssFiles = new CssFilesImpl();
            cssFiles.Add(
                XMLWorkerHelper.GetCSS(
                    File.OpenRead(RESOURCES + Path.DirectorySeparatorChar + testPath + testName +
                                  Path.DirectorySeparatorChar + "complexDiv02_files" + Path.DirectorySeparatorChar +
                                  "minimum0.css")));
            cssFiles.Add(
                XMLWorkerHelper.GetCSS(
                    File.OpenRead(RESOURCES + Path.DirectorySeparatorChar + testPath + testName +
                                  Path.DirectorySeparatorChar + "complexDiv02_files" + Path.DirectorySeparatorChar +
                                  "print000.css")));
            cssFiles.Add(XMLWorkerHelper.GetCSS(File.OpenRead(RESOURCES + @"\tool\xml\examples\" + "sampleTest.css")));
            StyleAttrCSSResolver cssResolver = new StyleAttrCSSResolver(cssFiles);
            HtmlPipelineContext hpc =
                new HtmlPipelineContext(
                    new CssAppliersImpl(new XMLWorkerFontProvider(RESOURCES + @"\tool\xml\examples\fonts")));
            hpc.SetAcceptUnknown(true).AutoBookmark(true).SetTagFactory(Tags.GetHtmlTagProcessorFactory());
            hpc.SetImageProvider(new SampleTestImageProvider());
            HtmlPipeline htmlPipeline = new HtmlPipeline(hpc, new PdfWriterPipeline(doc, pdfWriter));
            IPipeline pipeline = new CssResolverPipeline(cssResolver, htmlPipeline);
            XMLWorker worker = new XMLWorker(pipeline, true);
            XMLParser p = new XMLParser(true, worker, Encoding.GetEncoding("UTF-8"));
            p.Parse(File.OpenRead(inputHtml), Encoding.GetEncoding("UTF-8"));
            doc.Close();
        }

 virtual public void ParseXfaOnlyXML() {
     StreamReader bis = File.OpenText(RESOURCE_TEST_PATH + SNIPPETS + TEST + "snippet.html");
     Document doc = new Document(PageSize.A4);
     float margin = utils.ParseRelativeValue("10%", PageSize.A4.Width);
     doc.SetMargins(margin, margin, margin, margin);
     PdfWriter writer = null;
     try {
         writer = PdfWriter.GetInstance(doc, new FileStream(
             TARGET + TEST + "_charset.pdf", FileMode.Create));
     }
     catch (DocumentException e) {
         Console.WriteLine(e);
     }
     CssFilesImpl cssFiles = new CssFilesImpl();
     cssFiles.Add(XMLWorkerHelper.GetInstance().GetDefaultCSS());
     StyleAttrCSSResolver cssResolver = new StyleAttrCSSResolver(cssFiles);
     HtmlPipelineContext hpc = new HtmlPipelineContext(null);
     hpc.SetAcceptUnknown(true)
         .AutoBookmark(true)
         .SetTagFactory(Tags.GetHtmlTagProcessorFactory())
         .CharSet(Encoding.GetEncoding("ISO-8859-1"));
     IPipeline pipeline = new CssResolverPipeline(cssResolver,
         new HtmlPipeline(hpc, new PdfWriterPipeline(doc, writer)));
     XMLWorker worker = new XMLWorker(pipeline, true);
     doc.Open();
     XMLParser p = new XMLParser(true, worker);
     p.Parse(bis);
     doc.Close();
 }

        public void HtmlToPdf(string htmlFile, string pdfFile, string htmlImageDirectory)
        {
            using (FileStream pdfStream = new FileStream(pdfFile, FileMode.OpenOrCreate))
            {
                Document doc = new Document();
                PdfWriter writer = PdfWriter.GetInstance(doc, pdfStream);
                doc.Open();

                //TODO: apply external css
                ICSSResolver cssResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(true);

                //HTML
                HtmlPipelineContext htmlContext = new HtmlPipelineContext(null);
                htmlContext.SetTagFactory(Tags.GetHtmlTagProcessorFactory());
                htmlContext.SetImageProvider(new ImageProvider(htmlImageDirectory));
                htmlContext.SetLinkProvider(new LinkProvider("/"));

                //pipelines
                PdfWriterPipeline pdf = new PdfWriterPipeline(doc, writer);
                HtmlPipeline html = new HtmlPipeline(htmlContext, pdf);
                CssResolverPipeline css = new CssResolverPipeline(cssResolver, html);

                XMLWorker worker = new XMLWorker(css, true);
                XMLParser p = new XMLParser(true, worker, Encoding.UTF8);

                using (TextReader reader = File.OpenText(htmlFile))
                {
                    p.Parse(reader);
                }

                doc.Close();
            }
        }

 virtual public void TestContentToChunk() {
     Anchor a = new Anchor();
     Tag t = new Tag("dummy");
     String content2 = "some content";
     WorkerContextImpl ctx = new WorkerContextImpl();
     HtmlPipelineContext htmlPipelineContext = new HtmlPipelineContext(null);
     ctx.Put(typeof (HtmlPipeline).FullName, htmlPipelineContext);
     a.SetCssAppliers(new CssAppliersImpl());
     IList<IElement> ct = a.Content(ctx, t, content2);
     Assert.AreEqual(content2, ct[0].Chunks[0].Content);
 }

 virtual public void SetupDefaultProcessingYourself() {
     Document doc = new Document(PageSize.A4);
     PdfWriter writer = PdfWriter.GetInstance(doc,
         new FileStream(TARGET + "columbus2.pdf", FileMode.Create));
     doc.Open();
     HtmlPipelineContext htmlContext = new HtmlPipelineContext(null);
     htmlContext.SetTagFactory(Tags.GetHtmlTagProcessorFactory());
     ICSSResolver cssResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(true);
     IPipeline pipeline = new CssResolverPipeline(cssResolver, new HtmlPipeline(htmlContext,
         new PdfWriterPipeline(doc, writer)));
     XMLWorker worker = new XMLWorker(pipeline, true);
     XMLParser p = new XMLParser(worker);
     p.Parse(File.OpenRead(RESOURCES + @"\examples\columbus.html"));
     doc.Close();
 }

        virtual public void SetUp() {
            cells = new List<Element>();
            tag = new Tag("td", new Dictionary<String, String>());
            basicPara = new NoNewLineParagraph();
            basic = new Chunk("content");

            cell = new HtmlCell();
            applier = new HtmlCellCssApplier();


            LoggerFactory.GetInstance().SetLogger(new SysoLogger(3));
            Tag parent = new Tag("tr");
            parent.Parent = new Tag("table");
            tag.Parent = parent;
            basicPara.Add(basic);
            cell.AddElement(basicPara);
            cells.Add(cell);
            config = new HtmlPipelineContext(null);
        }

        protected override void TransformHtml2Pdf(Document doc, PdfWriter pdfWriter, IImageProvider imageProvider,
            IFontProvider fontProvider, Stream cssFile) {
            ICSSResolver cssResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(true);

            HtmlPipelineContext hpc;

            if (fontProvider != null)
                hpc = new HtmlPipelineContext(new CssAppliersImpl(fontProvider));
            else
                hpc = new HtmlPipelineContext(null);

            hpc.SetImageProvider(imageProvider);
            hpc.SetAcceptUnknown(true).AutoBookmark(true).SetTagFactory(Tags.GetHtmlTagProcessorFactory());
            HtmlPipeline htmlPipeline = new HtmlPipeline(hpc, new PdfWriterPipeline(doc, pdfWriter));
            IPipeline pipeline = new CssResolverPipeline(cssResolver, htmlPipeline);
            XMLWorker worker = new XMLWorker(pipeline, true);
            XMLParser xmlParse = new XMLParser(true, worker, Encoding.UTF8);
            xmlParse.Parse(new FileStream(inputHtml, FileMode.Open), Encoding.UTF8);
        }

        virtual public void SetUp() {
            LoggerFactory.GetInstance().SetLogger(new SysoLogger(3));
            root = new Tag("body");
            p = new Tag("p");
            ul = new Tag("ul");
            first = new Tag("li");
            last = new Tag("li");

            single = new ListItem("Single");
            start = new ListItem("Start");
            end = new ListItem("End");

            listWithOne = new List<IElement>();
            listWithTwo = new List<IElement>();
            orderedUnorderedList = new OrderedUnorderedList();
            CssAppliersImpl cssAppliers = new CssAppliersImpl();
            orderedUnorderedList.SetCssAppliers(cssAppliers);
            workerContextImpl = new WorkerContextImpl();
            HtmlPipelineContext context2 = new HtmlPipelineContext(cssAppliers);
            workerContextImpl.Put(typeof (HtmlPipeline).FullName, context2);
            root.AddChild(p);
            root.AddChild(ul);
            ul.AddChild(first);
            ul.AddChild(last);
            p.CSS["font-size"] = "12pt";
            p.CSS["margin-top"] = "12pt";
            p.CSS["margin-bottom"] = "12pt";
            new ParagraphCssApplier(cssAppliers).Apply(new Paragraph("paragraph"), p, context2);
            first.CSS["margin-top"] = "50pt";
            first.CSS["padding-top"] = "25pt";
            first.CSS["margin-bottom"] = "50pt";
            first.CSS["padding-bottom"] = "25pt";
            last.CSS["margin-bottom"] = "50pt";
            last.CSS["padding-bottom"] = "25pt";
            listWithOne.Add(single);
            listWithTwo.Add(start);
            listWithTwo.Add(end);
        }

        protected override void MakePdf(string outPdf) {
            Document doc = new Document(PageSize.A3.Rotate());

            PdfWriter pdfWriter = PdfWriter.GetInstance(doc, new FileStream(outPdf, FileMode.Create));
            pdfWriter.CreateXmpMetadata();

            doc.SetMargins(200, 200, 0, 0);
            doc.Open();


            CssFilesImpl cssFiles = new CssFilesImpl();
            cssFiles.Add(
                XMLWorkerHelper.GetCSS(
                    File.OpenRead(RESOURCES + Path.DirectorySeparatorChar + testPath + Path.DirectorySeparatorChar + testName +
                                  Path.DirectorySeparatorChar + "complexDiv_files" + Path.DirectorySeparatorChar +
                                  "main.css")));
            cssFiles.Add(
                XMLWorkerHelper.GetCSS(
                    File.OpenRead(RESOURCES + Path.DirectorySeparatorChar + testPath + Path.DirectorySeparatorChar + testName +
                                  Path.DirectorySeparatorChar + "complexDiv_files" + Path.DirectorySeparatorChar +
                                  "widget082.css")));
            StyleAttrCSSResolver cssResolver = new StyleAttrCSSResolver(cssFiles);
            HtmlPipelineContext hpc =
                new HtmlPipelineContext(
                    new CssAppliersImpl(new XMLWorkerFontProvider(RESOURCES + @"\tool\xml\examples\fonts")));
            hpc.SetAcceptUnknown(true).AutoBookmark(true).SetTagFactory(Tags.GetHtmlTagProcessorFactory());
            hpc.SetImageProvider(new SampleTestImageProvider());
            hpc.SetPageSize(doc.PageSize);
            HtmlPipeline htmlPipeline = new HtmlPipeline(hpc, new PdfWriterPipeline(doc, pdfWriter));
            IPipeline pipeline = new CssResolverPipeline(cssResolver, htmlPipeline);
            XMLWorker worker = new XMLWorker(pipeline, true);
            XMLParser p = new XMLParser(true, worker, Encoding.GetEncoding("UTF-8"));
            p.Parse(File.OpenRead(inputHtml), Encoding.GetEncoding("UTF-8"));
            //ICC_Profile icc = ICC_Profile.getInstance(ComplexDiv01Test.class.getResourceAsStream("sRGB Color Space Profile.icm"));
            //pdfWriter.setOutputIntents("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", icc);
            doc.Close();
        }

        virtual public PdfDiv Apply(PdfDiv div, Tag t, IMarginMemory memory, IPageSizeContainable psc, HtmlPipelineContext context)
        {
            if (t.Attributes.ContainsKey("id"))
                div.Tag = t.Attributes["id"];

            IDictionary<String, String> css = t.CSS;
            float fontSize = FontSizeTranslator.GetInstance().TranslateFontSize(t);
            if (fontSize == Font.UNDEFINED)
            {
                fontSize = FontSizeTranslator.DEFAULT_FONT_SIZE;
            }
            String align = null;
            if (t.Attributes.ContainsKey(HTML.Attribute.ALIGN))
            {
                align = t.Attributes[HTML.Attribute.ALIGN];
            }
            else if (css.ContainsKey(CSS.Property.TEXT_ALIGN))
            {
                align = css[CSS.Property.TEXT_ALIGN];
            }

            if (align != null)
            {
                div.TextAlignment = CSS.GetElementAlignment(align);
            }


            String widthValue;
            if (!css.TryGetValue(HTML.Attribute.WIDTH, out widthValue))
            {
                t.Attributes.TryGetValue(HTML.Attribute.WIDTH, out widthValue);
            }
            if (widthValue != null)
            {
                float pageWidth = psc.PageSize.Width;
                if (utils.IsNumericValue(widthValue) || utils.IsMetricValue(widthValue))
                {
                    div.Width = Math.Min(pageWidth, utils.ParsePxInCmMmPcToPt(widthValue));
                }
                else if (utils.IsRelativeValue(widthValue))
                {
                    if (widthValue.Contains(CSS.Value.PERCENTAGE))
                    {
                        div.PercentageWidth = utils.ParseRelativeValue(widthValue, 1f);
                    }
                    else
                    {
                        div.Width = Math.Min(pageWidth, utils.ParseRelativeValue(widthValue, fontSize));
                    }
                }
            }

            String heightValue;
            if (!css.TryGetValue(HTML.Attribute.HEIGHT, out heightValue))
            {
                t.Attributes.TryGetValue(HTML.Attribute.HEIGHT, out heightValue);
            }
            if (heightValue != null)
            {
                if (utils.IsNumericValue(heightValue) || utils.IsMetricValue(heightValue))
                {
                    div.Height = utils.ParsePxInCmMmPcToPt(heightValue);
                }
                else if (utils.IsRelativeValue(heightValue))
                {
                    if (heightValue.Contains(CSS.Value.PERCENTAGE))
                    {
                        div.PercentageHeight = utils.ParseRelativeValue(heightValue, 1f);
                    }
                    else
                    {
                        div.Height = utils.ParseRelativeValue(heightValue, fontSize);
                    }
                }
            }

            float? marginTop = null;
            float? marginBottom = null;

            foreach (KeyValuePair<String, String> entry in css)
            {
                String key = entry.Key;
                String value = entry.Value;
                if (Util.EqualsIgnoreCase(key, CSS.Property.LEFT))
                {
                    div.Left = utils.ParseValueToPt(value, fontSize);
                }
                else if (Util.EqualsIgnoreCase(key, CSS.Property.RIGHT))
                {
                    if (div.Width == null || div.Left == null)
                    {
                        div.Right = utils.ParseValueToPt(value, fontSize);
                    }
                }
                else if (Util.EqualsIgnoreCase(key, CSS.Property.TOP))
                {
                    div.Top = utils.ParseValueToPt(value, fontSize);
                }
                else if (Util.EqualsIgnoreCase(key, CSS.Property.BOTTOM))
                {
//.........这里部分代码省略.........

        /**
         * Parses an HTML string and a string containing CSS into a list of Element objects.
         * The FontProvider will be obtained from iText's FontFactory object.
         * 
         * @param   html    a String containing an XHTML snippet
         * @param   css     a String containing CSS
         * @return  an ElementList instance
         */
        public static ElementList ParseToElementList(String html, String css) {
            // CSS
            ICSSResolver cssResolver = new StyleAttrCSSResolver();
            if (css != null) {
                ICssFile cssFile = XMLWorkerHelper.GetCSS(new MemoryStream(Encoding.Default.GetBytes(css)));
                cssResolver.AddCss(cssFile);
            }

            // HTML
            CssAppliers cssAppliers = new CssAppliersImpl(FontFactory.FontImp);
            HtmlPipelineContext htmlContext = new HtmlPipelineContext(cssAppliers);
            htmlContext.SetTagFactory(Tags.GetHtmlTagProcessorFactory());
            htmlContext.AutoBookmark(false);

            // Pipelines
            ElementList elements = new ElementList();
            ElementHandlerPipeline end = new ElementHandlerPipeline(elements, null);
            HtmlPipeline htmlPipeline = new HtmlPipeline(htmlContext, end);
            CssResolverPipeline cssPipeline = new CssResolverPipeline(cssResolver, htmlPipeline);

            // XML Worker
            XMLWorker worker = new XMLWorker(cssPipeline, true);
            XMLParser p = new XMLParser(worker);
            p.Parse(new MemoryStream(Encoding.Default.GetBytes(html)));

            return elements;
        }

        protected void btnGeneratePdf_Click1(object sender, EventArgs e)
        {
            var sb = new StringBuilder();
            sb.Append("<table>");
            sb.Append("<tr>");
            sb.Append("<th class=\"th\">Title</th>");
            sb.Append("<th>Author</th>");
            sb.Append("</tr>");
            MongoDbProvider.db.LoadData<Word>().ToList().ForEach(b =>
            {
                sb.Append("<tr>");
                sb.AppendFormat("<td>{0}</td>", b.WordName);
                sb.AppendFormat("<td>{0}</td>", b.Translation);
                sb.Append("</tr>");
            });
            sb.Append("</table>");

            using (var document = new Document())
            {
                PdfWriter writer = PdfWriter.GetInstance(document,
                    new FileStream(Server.MapPath("loremipsum5.pdf"), FileMode.Append));
                document.Open();

                var htmlContext = new HtmlPipelineContext(null);
                htmlContext.SetTagFactory(Tags.GetHtmlTagProcessorFactory());
                var cssResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(false);
                //change this to your CCS file location
                cssResolver.AddCssFile(Server.MapPath("style.css"), true);
                var pipeline = new CssResolverPipeline(cssResolver,
                    new HtmlPipeline(htmlContext, new PdfWriterPipeline(document, writer)));
                var worker = new XMLWorker(pipeline, true);
                var p = new XMLParser(worker);
                p.Parse(new StringReader(sb.ToString()));
            }
        }