/// <summary> /// Produces HTML code for a section of the line, with <span class="colorName"> tags. /// </summary> public string ToHtml(int startOffset, int endOffset, HtmlOptions options = null) { StringWriter stringWriter = new StringWriter(CultureInfo.InvariantCulture); using (var htmlWriter = new HtmlRichTextWriter(stringWriter, options)) { WriteTo(htmlWriter, startOffset, endOffset); } return(stringWriter.ToString()); }
///// <summary> ///// Produces HTML code for the line, with <span class="colorName"> tags. ///// </summary> public string ToHtml(HtmlOptions options = null) { StringWriter stringWriter = new StringWriter(CultureInfo.InvariantCulture); using (var htmlWriter = new HtmlRichTextWriter(stringWriter, options)) { WriteTo(htmlWriter); } return(stringWriter.ToString()); }
/// <summary> /// Creates a new HtmlRichTextWriter instance. /// </summary> /// <param name="htmlWriter"> /// The text writer where the raw HTML is written to. /// The HtmlRichTextWriter does not take ownership of the htmlWriter; /// disposing the HtmlRichTextWriter will not dispose the underlying htmlWriter! /// </param> /// <param name="options">Options that control the HTML output.</param> public HtmlRichTextWriter(TextWriter htmlWriter, HtmlOptions options = null) { if (htmlWriter == null) { throw new ArgumentNullException("htmlWriter"); } this.htmlWriter = htmlWriter; this.options = options ?? new HtmlOptions(); }
/// <summary> /// Sets the TextDataFormat.Html on the data object to the specified html fragment. /// This helper methods takes care of creating the necessary CF_HTML header. /// </summary> //public static void SetHtml(DataObject dataObject, string htmlFragment) //{ // if (dataObject == null) // throw new ArgumentNullException("dataObject"); // if (htmlFragment == null) // throw new ArgumentNullException("htmlFragment"); // string htmlStart = @"<!DOCTYPE HTML PUBLIC ""-//W3C//DTD HTML 4.0 Transitional//EN"">" + Environment.NewLine // + "<HTML>" + Environment.NewLine // + "<BODY>" + Environment.NewLine // + "<!--StartFragment-->" + Environment.NewLine; // string htmlEnd = "<!--EndFragment-->" + Environment.NewLine + "</BODY>" + Environment.NewLine + "</HTML>" + Environment.NewLine; // string dummyHeader = BuildHeader(0, 0, 0, 0); // // the offsets are stored as UTF-8 bytes (see CF_HTML documentation) // int startHTML = dummyHeader.Length; // int startFragment = startHTML + htmlStart.Length; // int endFragment = startFragment + Encoding.UTF8.GetByteCount(htmlFragment); // int endHTML = endFragment + htmlEnd.Length; // string cf_html = BuildHeader(startHTML, endHTML, startFragment, endFragment) + htmlStart + htmlFragment + htmlEnd; // Debug.WriteLine(cf_html); // dataObject.SetText(cf_html, TextDataFormat.Html); //} /// <summary> /// Creates a HTML fragment from a part of a document. /// </summary> /// <param name="document">The document to create HTML from.</param> /// <param name="highlighter">The highlighter used to highlight the document. <c>null</c> is valid and will create HTML without any highlighting.</param> /// <param name="segment">The part of the document to create HTML for. You can pass <c>null</c> to create HTML for the whole document.</param> /// <param name="options">The options for the HTML creation.</param> /// <returns>HTML code for the document part.</returns> public static string CreateHtmlFragment(IDocument document, IHighlighter highlighter, ISegment segment, HtmlOptions options) { if (document == null) { throw new ArgumentNullException(nameof(document)); } if (options == null) { throw new ArgumentNullException(nameof(options)); } if (highlighter != null && highlighter.Document != document) { throw new ArgumentException("Highlighter does not belong to the specified document."); } if (segment == null) { segment = new SimpleSegment(0, document.TextLength); } var html = new StringBuilder(); var segmentEndOffset = segment.EndOffset; var line = document.GetLineByOffset(segment.Offset); while (line != null && line.Offset < segmentEndOffset) { // ReSharper disable once UnusedVariable var highlightedLine = highlighter != null?highlighter.HighlightLine(line.LineNumber) : new HighlightedLine(document, line); if (html.Length > 0) { html.AppendLine("<br>"); } // TODO: html var s = SimpleSegment.GetOverlap(segment, line); html.Append(highlightedLine.ToHtml(s.Offset, s.EndOffset, options)); line = line.NextLine; } return(html.ToString()); }