fix #255: Code Completion description tooltip is unformatted

ICSharpCode.AvalonEdit/ICSharpCode.AvalonEdit.csproj

@@ -64,6 +64,9 @@
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
     <Reference Include="System.Drawing" />
+    <Reference Include="System.Printing">
+      <RequiredTargetFramework>3.0</RequiredTargetFramework>
+    </Reference>
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xaml">
       <RequiredTargetFramework>4.0</RequiredTargetFramework>
@@ -356,6 +359,7 @@
     <Compile Include="Utils\Constants.cs" />
     <Compile Include="Utils\DelayedEvents.cs" />
     <Compile Include="Utils\Deque.cs" />
+    <Compile Include="Utils\DocumentPrinter.cs" />
     <Compile Include="Utils\Empty.cs" />
     <Compile Include="Utils\ExtensionMethods.cs" />
     <Compile Include="Utils\FileReader.cs" />

ICSharpCode.AvalonEdit/Utils/DocumentPrinter.cs

@@ -0,0 +1,73 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using System.IO;
+using System.IO.Packaging;
+using System.Printing;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Xps;
+
+using ICSharpCode.AvalonEdit.Document;
+using ICSharpCode.AvalonEdit.Highlighting;
+using ICSharpCode.NRefactory.Editor;
+
+namespace ICSharpCode.AvalonEdit.Utils
+{
+	/// <summary>
+	/// Helps printing documents.
+	/// </summary>
+	public static class DocumentPrinter
+	{
+		public static Block ConvertTextDocumentToBlock(ReadOnlyDocument document, IHighlightingDefinition highlightingDefinition)
+		{
+			IHighlighter highlighter;
+			if (highlightingDefinition != null)
+				highlighter = new DocumentHighlighter(document, highlightingDefinition);
+			else
+				highlighter = null;
+			return ConvertTextDocumentToBlock(document, highlighter);
+		}
+		
+		public static Block ConvertTextDocumentToBlock(IDocument document, IHighlighter highlighter)
+		{
+			if (document == null)
+				throw new ArgumentNullException("document");
+//			Table table = new Table();
+//			table.Columns.Add(new TableColumn { Width = GridLength.Auto });
+//			table.Columns.Add(new TableColumn { Width = new GridLength(1, GridUnitType.Star) });
+//			TableRowGroup trg = new TableRowGroup();
+//			table.RowGroups.Add(trg);
+			Paragraph p = new Paragraph();
+			p.TextAlignment = TextAlignment.Left;
+			for (int lineNumber = 1; lineNumber <= document.LineCount; lineNumber++) {
+				if (lineNumber > 1)
+					p.Inlines.Add(new LineBreak());
+				var line = document.GetLineByNumber(lineNumber);
+//				TableRow row = new TableRow();
+//				trg.Rows.Add(row);
+//				row.Cells.Add(new TableCell(new Paragraph(new Run(lineNumber.ToString()))) { TextAlignment = TextAlignment.Right });
+//				Paragraph p = new Paragraph();
+//				row.Cells.Add(new TableCell(p));
+				if (highlighter != null) {
+					HighlightedLine highlightedLine = highlighter.HighlightLine(lineNumber);
+					p.Inlines.AddRange(highlightedLine.ToRichText().CreateRuns());
+				} else {
+					p.Inlines.Add(document.GetText(line));
+				}
+			}
+			return p;
+		}
+		
+		public static FlowDocument CreateFlowDocumentForEditor(TextEditor editor)
+		{
+			IHighlighter highlighter = editor.TextArea.GetService(typeof(IHighlighter)) as IHighlighter;
+			FlowDocument doc = new FlowDocument(ConvertTextDocumentToBlock(editor.Document, highlighter));
+			doc.FontFamily = editor.FontFamily;
+			doc.FontSize = editor.FontSize;
+			return doc;
+		}
+	}
+}