Merge branch 'master' of https://twinetfs.visualstudio.com/_git/Tango

10 files changed, 837 insertions, 19 deletions

diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Errors/ITextMarker.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Errors/ITextMarker.cs
new file mode 100644
index 000000000..dcbf8388a
--- /dev/null
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Errors/ITextMarker.cs
@@ -0,0 +1,169 @@
+// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy of this
+// software and associated documentation files (the "Software"), to deal in the Software
+// without restriction, including without limitation the rights to use, copy, modify, merge,
+// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
+// to whom the Software is furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all copies or
+// substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+using System;
+using System.Collections.Generic;
+using System.Windows;
+using System.Windows.Media;
+
+namespace Tango.Scripting.Editors
+{
+	/// <summary>
+	/// Represents a text marker.
+	/// </summary>
+	public interface ITextMarker
+	{
+		/// <summary>
+		/// Gets the start offset of the marked text region.
+		/// </summary>
+		int StartOffset { get; }
+		
+		/// <summary>
+		/// Gets the end offset of the marked text region.
+		/// </summary>
+		int EndOffset { get; }
+		
+		/// <summary>
+		/// Gets the length of the marked region.
+		/// </summary>
+		int Length { get; }
+		
+		/// <summary>
+		/// Deletes the text marker.
+		/// </summary>
+		void Delete();
+		
+		/// <summary>
+		/// Gets whether the text marker was deleted.
+		/// </summary>
+		bool IsDeleted { get; }
+		
+		/// <summary>
+		/// Event that occurs when the text marker is deleted.
+		/// </summary>
+		event EventHandler Deleted;
+		
+		/// <summary>
+		/// Gets/Sets the background color.
+		/// </summary>
+		Color? BackgroundColor { get; set; }
+		
+		/// <summary>
+		/// Gets/Sets the foreground color.
+		/// </summary>
+		Color? ForegroundColor { get; set; }
+		
+		/// <summary>
+		/// Gets/Sets the font weight.
+		/// </summary>
+		FontWeight? FontWeight { get; set; }
+		
+		/// <summary>
+		/// Gets/Sets the font style.
+		/// </summary>
+		FontStyle? FontStyle { get; set; }
+		
+		/// <summary>
+		/// Gets/Sets the type of the marker. Use TextMarkerType.None for normal markers.
+		/// </summary>
+		TextMarkerTypes MarkerTypes { get; set; }
+		
+		/// <summary>
+		/// Gets/Sets the color of the marker.
+		/// </summary>
+		Color MarkerColor { get; set; }
+		
+		/// <summary>
+		/// Gets/Sets an object with additional data for this text marker.
+		/// </summary>
+		object Tag { get; set; }
+		
+		/// <summary>
+		/// Gets/Sets an object that will be displayed as tooltip in the text editor.
+		/// </summary>
+		/// <remarks>Not supported in this sample!</remarks>
+		object ToolTip { get; set; }
+	}
+	
+	[Flags]
+	public enum TextMarkerTypes
+	{
+		/// <summary>
+		/// Use no marker
+		/// </summary>
+		None = 0x0000,
+		/// <summary>
+		/// Use squiggly underline marker
+		/// </summary>
+		SquigglyUnderline = 0x001,
+		/// <summary>
+		/// Normal underline.
+		/// </summary>
+		NormalUnderline = 0x002,
+		/// <summary>
+		/// Dotted underline.
+		/// </summary>
+		DottedUnderline = 0x004,
+		
+		/// <summary>
+		/// Horizontal line in the scroll bar.
+		/// </summary>
+		LineInScrollBar = 0x0100,
+		/// <summary>
+		/// Small triangle in the scroll bar, pointing to the right.
+		/// </summary>
+		ScrollBarRightTriangle = 0x0400,
+		/// <summary>
+		/// Small triangle in the scroll bar, pointing to the left.
+		/// </summary>
+		ScrollBarLeftTriangle = 0x0800,
+		/// <summary>
+		/// Small circle in the scroll bar.
+		/// </summary>
+		CircleInScrollBar = 0x1000
+	}
+	
+	public interface ITextMarkerService
+	{
+		/// <summary>
+		/// Creates a new text marker. The text marker will be invisible at first,
+		/// you need to set one of the Color properties to make it visible.
+		/// </summary>
+		ITextMarker Create(int startOffset, int length);
+		
+		/// <summary>
+		/// Gets the list of text markers.
+		/// </summary>
+		IEnumerable<ITextMarker> TextMarkers { get; }
+		
+		/// <summary>
+		/// Removes the specified text marker.
+		/// </summary>
+		void Remove(ITextMarker marker);
+		
+		/// <summary>
+		/// Removes all text markers that match the condition.
+		/// </summary>
+		void RemoveAll(Predicate<ITextMarker> predicate);
+		
+		/// <summary>
+		/// Finds all text markers at the specified offset.
+		/// </summary>
+		IEnumerable<ITextMarker> GetMarkersAtOffset(int offset);
+	}
+}
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Errors/TextMarkerService.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Errors/TextMarkerService.cs
new file mode 100644
index 000000000..2bb3d8e03
--- /dev/null
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Errors/TextMarkerService.cs
@@ -0,0 +1,365 @@
+// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy of this
+// software and associated documentation files (the "Software"), to deal in the Software
+// without restriction, including without limitation the rights to use, copy, modify, merge,
+// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
+// to whom the Software is furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all copies or
+// substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Windows;
+using System.Windows.Media;
+using System.Windows.Threading;
+using Tango.Scripting.Editors.Document;
+using Tango.Scripting.Editors.Rendering;
+
+namespace Tango.Scripting.Editors
+{
+	/// <summary>
+	/// Handles the text markers for a code editor.
+	/// </summary>
+	public sealed class TextMarkerService : DocumentColorizingTransformer, IBackgroundRenderer, ITextMarkerService, ITextViewConnect
+	{
+		TextSegmentCollection<TextMarker> markers;
+		TextDocument document;
+		
+		public TextMarkerService(TextDocument document)
+		{
+			if (document == null)
+				throw new ArgumentNullException("document");
+			this.document = document;
+			this.markers = new TextSegmentCollection<TextMarker>(document);
+		}
+		
+		#region ITextMarkerService
+		public ITextMarker Create(int startOffset, int length)
+		{
+			if (markers == null)
+				throw new InvalidOperationException("Cannot create a marker when not attached to a document");
+			
+			int textLength = document.TextLength;
+			if (startOffset < 0 || startOffset > textLength)
+				throw new ArgumentOutOfRangeException("startOffset", startOffset, "Value must be between 0 and " + textLength);
+			if (length < 0 || startOffset + length > textLength)
+				throw new ArgumentOutOfRangeException("length", length, "length must not be negative and startOffset+length must not be after the end of the document");
+			
+			TextMarker m = new TextMarker(this, startOffset, length);
+			markers.Add(m);
+			// no need to mark segment for redraw: the text marker is invisible until a property is set
+			return m;
+		}
+		
+		public IEnumerable<ITextMarker> GetMarkersAtOffset(int offset)
+		{
+			if (markers == null)
+				return Enumerable.Empty<ITextMarker>();
+			else
+				return markers.FindSegmentsContaining(offset);
+		}
+		
+		public IEnumerable<ITextMarker> TextMarkers {
+			get { return markers ?? Enumerable.Empty<ITextMarker>(); }
+		}
+		
+		public void RemoveAll(Predicate<ITextMarker> predicate)
+		{
+			if (predicate == null)
+				throw new ArgumentNullException("predicate");
+			if (markers != null) {
+				foreach (TextMarker m in markers.ToArray()) {
+					if (predicate(m))
+						Remove(m);
+				}
+			}
+		}
+		
+		public void Remove(ITextMarker marker)
+		{
+			if (marker == null)
+				throw new ArgumentNullException("marker");
+			TextMarker m = marker as TextMarker;
+			if (markers != null && markers.Remove(m)) {
+				Redraw(m);
+				m.OnDeleted();
+			}
+		}
+		
+		/// <summary>
+		/// Redraws the specified text segment.
+		/// </summary>
+		internal void Redraw(ISegment segment)
+		{
+			foreach (var view in textViews) {
+				view.Redraw(segment, DispatcherPriority.Normal);
+			}
+			if (RedrawRequested != null)
+				RedrawRequested(this, EventArgs.Empty);
+		}
+		
+		public event EventHandler RedrawRequested;
+		#endregion
+		
+		#region DocumentColorizingTransformer
+		protected override void ColorizeLine(DocumentLine line)
+		{
+			if (markers == null)
+				return;
+			int lineStart = line.Offset;
+			int lineEnd = lineStart + line.Length;
+			foreach (TextMarker marker in markers.FindOverlappingSegments(lineStart, line.Length)) {
+				Brush foregroundBrush = null;
+				if (marker.ForegroundColor != null) {
+					foregroundBrush = new SolidColorBrush(marker.ForegroundColor.Value);
+					foregroundBrush.Freeze();
+				}
+				ChangeLinePart(
+					Math.Max(marker.StartOffset, lineStart),
+					Math.Min(marker.EndOffset, lineEnd),
+					element => {
+						if (foregroundBrush != null) {
+							element.TextRunProperties.SetForegroundBrush(foregroundBrush);
+						}
+						Typeface tf = element.TextRunProperties.Typeface;
+						element.TextRunProperties.SetTypeface(new Typeface(
+							tf.FontFamily,
+							marker.FontStyle ?? tf.Style,
+							marker.FontWeight ?? tf.Weight,
+							tf.Stretch
+						));
+					}
+				);
+			}
+		}
+		#endregion
+		
+		#region IBackgroundRenderer
+		public KnownLayer Layer {
+			get {
+				// draw behind selection
+				return KnownLayer.Selection;
+			}
+		}
+		
+		public void Draw(TextView textView, DrawingContext drawingContext)
+		{
+			if (textView == null)
+				throw new ArgumentNullException("textView");
+			if (drawingContext == null)
+				throw new ArgumentNullException("drawingContext");
+			if (markers == null || !textView.VisualLinesValid)
+				return;
+			var visualLines = textView.VisualLines;
+			if (visualLines.Count == 0)
+				return;
+			int viewStart = visualLines.First().FirstDocumentLine.Offset;
+			int viewEnd = visualLines.Last().LastDocumentLine.EndOffset;
+			foreach (TextMarker marker in markers.FindOverlappingSegments(viewStart, viewEnd - viewStart)) {
+				if (marker.BackgroundColor != null) {
+					BackgroundGeometryBuilder geoBuilder = new BackgroundGeometryBuilder();
+					geoBuilder.AlignToWholePixels = true;
+					geoBuilder.CornerRadius = 3;
+					geoBuilder.AddSegment(textView, marker);
+					Geometry geometry = geoBuilder.CreateGeometry();
+					if (geometry != null) {
+						Color color = marker.BackgroundColor.Value;
+						SolidColorBrush brush = new SolidColorBrush(color);
+						brush.Freeze();
+						drawingContext.DrawGeometry(brush, null, geometry);
+					}
+				}
+				var underlineMarkerTypes = TextMarkerTypes.SquigglyUnderline | TextMarkerTypes.NormalUnderline | TextMarkerTypes.DottedUnderline;
+				if ((marker.MarkerTypes & underlineMarkerTypes) != 0) {
+					foreach (Rect r in BackgroundGeometryBuilder.GetRectsForSegment(textView, marker)) {
+						Point startPoint = r.BottomLeft;
+						Point endPoint = r.BottomRight;
+						
+						Brush usedBrush = new SolidColorBrush(marker.MarkerColor);
+						usedBrush.Freeze();
+						if ((marker.MarkerTypes & TextMarkerTypes.SquigglyUnderline) != 0) {
+							double offset = 2.5;
+							
+							int count = Math.Max((int)((endPoint.X - startPoint.X) / offset) + 1, 4);
+							
+							StreamGeometry geometry = new StreamGeometry();
+							
+							using (StreamGeometryContext ctx = geometry.Open()) {
+								ctx.BeginFigure(startPoint, false, false);
+								ctx.PolyLineTo(CreatePoints(startPoint, endPoint, offset, count).ToArray(), true, false);
+							}
+							
+							geometry.Freeze();
+							
+							Pen usedPen = new Pen(usedBrush, 1);
+							usedPen.Freeze();
+							drawingContext.DrawGeometry(Brushes.Transparent, usedPen, geometry);
+						}
+						if ((marker.MarkerTypes & TextMarkerTypes.NormalUnderline) != 0) {
+							Pen usedPen = new Pen(usedBrush, 1);
+							usedPen.Freeze();
+							drawingContext.DrawLine(usedPen, startPoint, endPoint);
+						}
+						if ((marker.MarkerTypes & TextMarkerTypes.DottedUnderline) != 0) {
+							Pen usedPen = new Pen(usedBrush, 1);
+							usedPen.DashStyle = DashStyles.Dot;
+							usedPen.Freeze();
+							drawingContext.DrawLine(usedPen, startPoint, endPoint);
+						}
+					}
+				}
+			}
+		}
+		
+		IEnumerable<Point> CreatePoints(Point start, Point end, double offset, int count)
+		{
+			for (int i = 0; i < count; i++)
+				yield return new Point(start.X + i * offset, start.Y - ((i + 1) % 2 == 0 ? offset : 0));
+		}
+		#endregion
+		
+		#region ITextViewConnect
+		readonly List<TextView> textViews = new List<TextView>();
+		
+		void ITextViewConnect.AddToTextView(TextView textView)
+		{
+			if (textView != null && !textViews.Contains(textView)) {
+				Debug.Assert(textView.Document == document);
+				textViews.Add(textView);
+			}
+		}
+		
+		void ITextViewConnect.RemoveFromTextView(TextView textView)
+		{
+			if (textView != null) {
+				Debug.Assert(textView.Document == document);
+				textViews.Remove(textView);
+			}
+		}
+		#endregion
+	}
+	
+	public sealed class TextMarker : TextSegment, ITextMarker
+	{
+		readonly TextMarkerService service;
+		
+		public TextMarker(TextMarkerService service, int startOffset, int length)
+		{
+			if (service == null)
+				throw new ArgumentNullException("service");
+			this.service = service;
+			this.StartOffset = startOffset;
+			this.Length = length;
+			this.markerTypes = TextMarkerTypes.None;
+		}
+		
+		public event EventHandler Deleted;
+		
+		public bool IsDeleted {
+			get { return !this.IsConnectedToCollection; }
+		}
+		
+		public void Delete()
+		{
+			service.Remove(this);
+		}
+		
+		internal void OnDeleted()
+		{
+			if (Deleted != null)
+				Deleted(this, EventArgs.Empty);
+		}
+		
+		void Redraw()
+		{
+			service.Redraw(this);
+		}
+		
+		Color? backgroundColor;
+		
+		public Color? BackgroundColor {
+			get { return backgroundColor; }
+			set {
+				if (backgroundColor != value) {
+					backgroundColor = value;
+					Redraw();
+				}
+			}
+		}
+		
+		Color? foregroundColor;
+		
+		public Color? ForegroundColor {
+			get { return foregroundColor; }
+			set {
+				if (foregroundColor != value) {
+					foregroundColor = value;
+					Redraw();
+				}
+			}
+		}
+		
+		FontWeight? fontWeight;
+		
+		public FontWeight? FontWeight {
+			get { return fontWeight; }
+			set {
+				if (fontWeight != value) {
+					fontWeight = value;
+					Redraw();
+				}
+			}
+		}
+		
+		FontStyle? fontStyle;
+		
+		public FontStyle? FontStyle {
+			get { return fontStyle; }
+			set {
+				if (fontStyle != value) {
+					fontStyle = value;
+					Redraw();
+				}
+			}
+		}
+		
+		public object Tag { get; set; }
+		
+		TextMarkerTypes markerTypes;
+		
+		public TextMarkerTypes MarkerTypes {
+			get { return markerTypes; }
+			set {
+				if (markerTypes != value) {
+					markerTypes = value;
+					Redraw();
+				}
+			}
+		}
+		
+		Color markerColor;
+		
+		public Color MarkerColor {
+			get { return markerColor; }
+			set {
+				if (markerColor != value) {
+					markerColor = value;
+					Redraw();
+				}
+			}
+		}
+		
+		public object ToolTip { get; set; }
+	}
+}
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/OffsetColorizer.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/OffsetColorizer.cs
index a05d1fc75..72c27f9a9 100644
--- a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/OffsetColorizer.cs
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/OffsetColorizer.cs
@@ -30,7 +30,7 @@ namespace Tango.Scripting.Editors.Highlighting
             {
                 try
                 {
-                    ChangeLinePart(StartOffset, EndOffset, element => element.TextRunProperties.SetForegroundBrush(Brush));
+                    ChangeLinePart(StartOffset, EndOffset, element => element.TextRunProperties.SetBackgroundBrush(Brush));
                 }
                 catch { }
             }
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/Resources/MarkDown-Mode.xshd b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/Resources/MarkDown-Mode.xshd
index ead5045ab..8e02db898 100644
--- a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/Resources/MarkDown-Mode.xshd
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/Resources/MarkDown-Mode.xshd
@@ -5,7 +5,6 @@
 	<Color name="StrongEmphasis" fontWeight="bold" exampleText="**this** is more important!" />
 	<Color name="Code" exampleText="this is `int.GetHashCode()`" />
 	<Color name="BlockQuote" foreground="DarkBlue" exampleText="&gt; This is a\r\n&gt; quote." />
-	<Color name="Link" foreground="Blue" exampleText="[text](http://example.com)" />
 	<Color name="Image" foreground="Green" exampleText="[text][http://example.com/test.png]" />
 	<Color name="LineBreak" background="LightGray" exampleText="end of line      \r\n2nd line   " />
 	
@@ -43,12 +42,6 @@
 		<Rule color="Image">
 			\!\[.*\]\[.*\]
 		</Rule>
-		<Rule color="Link">
-			\[.*\]\(.*\)
-		</Rule>
-		<Rule color="Link">
-			\[.*\]\[.*\]
-		</Rule>
 		<Rule color="LineBreak">
 			[ ]{2}$
 		</Rule>
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/Resources/XML-Mode.xshd b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/Resources/XML-Mode.xshd
index 8f0bdef76..50fdc0e2c 100644
--- a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/Resources/XML-Mode.xshd
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Highlighting/Resources/XML-Mode.xshd
@@ -1,13 +1,13 @@
 <SyntaxDefinition name="XML" extensions=".xml;.xsl;.xslt;.xsd;.manifest;.config;.addin;.xshd;.wxs;.wxi;.wxl;.proj;.csproj;.vbproj;.ilproj;.booproj;.build;.xfrm;.targets;.xaml;.xpt;.xft;.map;.wsdl;.disco;.ps1xml;.nuspec" xmlns="http://icsharpcode.net/sharpdevelop/syntaxdefinition/2008">
 	<Color foreground="Green" name="Comment" exampleText="&lt;!-- comment --&gt;" />
-	<Color foreground="Blue" name="CData" exampleText="&lt;![CDATA[data]]&gt;" />
-	<Color foreground="Blue" name="DocType" exampleText="&lt;!DOCTYPE rootElement&gt;" />
-	<Color foreground="Blue" name="XmlDeclaration" exampleText='&lt;?xml version="1.0"?&gt;' />
-	<Color foreground="DarkMagenta" name="XmlTag" exampleText='&lt;tag attribute="value" /&gt;' />
-	<Color foreground="Red" name="AttributeName" exampleText='&lt;tag attribute="value" /&gt;' />
-	<Color foreground="Blue" name="AttributeValue" exampleText='&lt;tag attribute="value" /&gt;' />
+	<Color foreground="#3F92D6" name="CData" exampleText="&lt;![CDATA[data]]&gt;" />
+	<Color foreground="#C8C8C7" name="DocType" exampleText="&lt;!DOCTYPE rootElement&gt;" />
+	<Color foreground="#3F92D6" name="XmlDeclaration" exampleText='&lt;?xml version="1.0"?&gt;' />
+	<Color foreground="#3F92D6" name="XmlTag" exampleText='&lt;tag attribute="value" /&gt;' />
+	<Color foreground="#92CAF4" name="AttributeName" exampleText='&lt;tag attribute="value" /&gt;' />
+	<Color foreground="#C8C8C7" name="AttributeValue" exampleText='&lt;tag attribute="value" /&gt;' />
 	<Color foreground="Teal" name="Entity" exampleText="index.aspx?a=1&amp;amp;b=2" />
-	<Color foreground="Olive" name="BrokenEntity" exampleText="index.aspx?a=1&amp;b=2" />
+	<Color foreground="Red" name="BrokenEntity" exampleText="index.aspx?a=1&amp;b=2" />
 	
 	<RuleSet>
 		<Span color="Comment" multiline="true">
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Rendering/TextView.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Rendering/TextView.cs
index 3dabb6b7a..1b1f12ff3 100644
--- a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Rendering/TextView.cs
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Rendering/TextView.cs
@@ -554,7 +554,7 @@ namespace Tango.Scripting.Editors.Rendering
 		/// </summary>
 		public static readonly DependencyProperty LinkTextForegroundBrushProperty =
 			DependencyProperty.Register("LinkTextForegroundBrush", typeof(Brush), typeof(TextView),
-			                            new FrameworkPropertyMetadata(Brushes.Blue));
+			                            new FrameworkPropertyMetadata(Brushes.Gray));
 		
 		/// <summary>
 		/// Gets/sets the Brush used for displaying link texts.
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/ScriptEditor.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/ScriptEditor.cs
index 71a455f86..8cf615a7c 100644
--- a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/ScriptEditor.cs
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/ScriptEditor.cs
@@ -4,6 +4,7 @@ using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
+using System.ComponentModel.Design;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
@@ -56,6 +57,7 @@ namespace Tango.Scripting.Editors
         private List<KnownType> _knownTypes;
         private List<ScriptType> _declaredTypes;
         private bool _isLoadingTypes;
+        private TextMarkerService errorMarkerService;
         private static JsonSerializerSettings _jsonSettings;
         private static Dictionary<Type, KnownType> _knownTypesCache;
         private static String KNOWN_TYPES_CACHE_FOLDER;
@@ -69,6 +71,7 @@ namespace Tango.Scripting.Editors
         public static event EventHandler<TangoProgressChangedEventArgs<int>> LoadingSymbolsProgress;
         public static event EventHandler LoadingSymbolsStarted;
         public static event EventHandler LoadingSymbolsCompleted;
+        private static event EventHandler KnownTypesAvailable;
 
         #region Mini Classes
 
@@ -161,6 +164,14 @@ namespace Tango.Scripting.Editors
         public static readonly DependencyProperty AdditionalScriptsProperty =
             DependencyProperty.Register("AdditionalScripts", typeof(ObservableCollection<IScriptSource>), typeof(ScriptEditor), new PropertyMetadata(null));
 
+        public Brush ColorizeBrush
+        {
+            get { return (Brush)GetValue(ColorizeBrushProperty); }
+            set { SetValue(ColorizeBrushProperty, value); }
+        }
+        public static readonly DependencyProperty ColorizeBrushProperty =
+            DependencyProperty.Register("ColorizeBrush", typeof(Brush), typeof(ScriptEditor), new PropertyMetadata(new SolidColorBrush(Colors.YellowGreen) { Opacity = 0.5 }));
+
         #endregion
 
         #region Constructors
@@ -266,6 +277,8 @@ namespace Tango.Scripting.Editors
             _knownTypes = new List<KnownType>();
             _parser = new ScriptParser();
 
+            KnownTypesAvailable += ScriptEditor_KnownTypesAvailable;
+
             TextArea.IndentationStrategy = new Indentation.CSharp.CSharpIndentationStrategy(Options);
             foldingStrategy = new BraceFoldingStrategy();
 
@@ -285,6 +298,18 @@ namespace Tango.Scripting.Editors
             completionWindow.InsertionRequest += CompletionWindow_InsertionRequest;
 
             TextChanged += ScriptEditor_TextChanged;
+
+            errorMarkerService = new TextMarkerService(Document);
+            TextArea.TextView.BackgroundRenderers.Add(errorMarkerService);
+            TextArea.TextView.LineTransformers.Add(errorMarkerService);
+        }
+
+        private void ScriptEditor_KnownTypesAvailable(object sender, EventArgs e)
+        {
+            if (sender != this)
+            {
+                InvalidateHighlightingPartial();
+            }
         }
 
         private bool preventCodeUpdate;
@@ -1357,7 +1382,7 @@ namespace Tango.Scripting.Editors
             return popup;
         }
 
-        public static void LoadUsingsSymbols(List<Assembly> assemblies, List<String> usings)
+        public void LoadUsingsSymbols(List<Assembly> assemblies, List<String> usings)
         {
             lock (_loadUsingsLock)
             {
@@ -1390,6 +1415,9 @@ namespace Tango.Scripting.Editors
                                 _knownTypesCache.Add(knownType.Type, knownType);
                             }
 
+                            KnownTypesAvailable?.Invoke(this, new EventArgs());
+                            InvalidateHighlightingPartial();
+
                             continue;
                         }
 
@@ -1575,6 +1603,100 @@ namespace Tango.Scripting.Editors
         //    _isLoadingCachedAssemblies = false;
         //}
 
+        private void InvalidateHighlightingPartial()
+        {
+            List<Assembly> assemblies = new List<Assembly>();
+            Dispatcher.Invoke(() =>
+            {
+                assemblies = ReferenceAssemblies.ToList();
+            });
+
+            var usings = _current_usings.ToList();
+
+            _knownTypes.Clear();
+
+            foreach (var knownType in _knownTypesCache.ToList().Select(x => x.Value).ToList())
+            {
+                if (usings.Exists(x => knownType.Type.Namespace == x) && assemblies.Exists(x => x == knownType.Type.Assembly))
+                {
+                    lock (_knownTypes)
+                    {
+                        _knownTypes.Add(knownType);
+                    }
+                }
+            }
+
+            if (_knownTypes.Count > 0 || _declaredTypes.Count > 0)
+            {
+                String text = String.Empty;
+
+                Stream xshd_stream = typeof(ScriptEditor).Assembly.GetManifestResourceStream("Tango.Scripting.Editors.Highlighting.Resources.CSharp-Mode.xshd");
+
+                using (StreamReader reader = new StreamReader(xshd_stream))
+                {
+                    text = reader.ReadToEnd();
+                }
+
+                List<String> referenceTypes = new List<string>();
+                List<String> interfaceTypes = new List<string>();
+
+                lock (_knownTypes)
+                {
+                    foreach (var type in _knownTypes.ToList().Where(x => x != null))
+                    {
+                        String name = type.Name;
+
+                        if (type.Type.ContainsGenericParameters)
+                        {
+                            name = new String(name.TakeWhile(x => x != '`').ToArray());
+                        }
+
+                        if (type.Type.IsInterface || type.Type.IsEnum)
+                        {
+                            interfaceTypes.Add(String.Format("<Word>{0}</Word>", name));
+                        }
+                        else if (type.Type.IsClass || (type.Type.IsValueType))
+                        {
+                            referenceTypes.Add(String.Format("<Word>{0}</Word>", name));
+                        }
+                    }
+                }
+
+                foreach (var type in _declaredTypes)
+                {
+                    if (type.Kind == TypeKind.Interface || type.Kind == TypeKind.Enum)
+                    {
+                        interfaceTypes.Add(String.Format("<Word>{0}</Word>", type.Name));
+                    }
+                    else if (type.Kind == TypeKind.Class)
+                    {
+                        referenceTypes.Add(String.Format("<Word>{0}</Word>", type.Name));
+                    }
+                }
+
+                if (referenceTypes.Count > 0)
+                {
+                    text = text.Replace("<Word>@ReferenceTypes@</Word>", String.Join(Environment.NewLine, referenceTypes.Distinct()));
+                }
+
+                if (interfaceTypes.Count > 0)
+                {
+                    text = text.Replace("<Word>@InterfaceTypes@</Word>", String.Join(Environment.NewLine, interfaceTypes.Distinct()));
+                }
+
+                MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(text));
+
+                XmlTextReader xshd_reader = new XmlTextReader(ms);
+
+                Dispatcher.Invoke(new Action(() =>
+                {
+                    SyntaxHighlighting = HighlightingLoader.Load(xshd_reader, HighlightingManager.Instance);
+                    xshd_reader.Close();
+                    ms.Dispose();
+                }));
+            }
+        }
+
         public void InvalidateHighlighting(bool loadKnownTypes = true)
         {
             if (!_isLoadingTypes)
@@ -1964,7 +2086,7 @@ namespace Tango.Scripting.Editors
             {
                 int parameterIndex = expression.Count(x => x == ',');
 
-                
+
                 expression = new string(expression.TakeWhile(x => x != '(').ToArray());
 
                 var tree = expression.Split('.').Select(x => x.Remove(@"\n|\r|\s|\t|\(|\)|\[|\]|<.*>")).ToList();
@@ -2209,6 +2331,116 @@ namespace Tango.Scripting.Editors
             Document.Insert(TextArea.Caret.Offset, code);
         }
 
+        public int Find(String text)
+        {
+            if (String.IsNullOrEmpty(text)) return -1;
+
+            string txt = Document.Text;
+            int index = txt.IndexOf(text, TextArea.Caret.Offset);
+
+            if (index > -1)
+            {
+                Select(index, text.Length);
+                ScrollToLine(TextArea.Selection.StartPosition.Line);
+            }
+            else
+            {
+                index = txt.IndexOf(text, 0);
+
+                if (index > -1)
+                {
+                    Select(index, text.Length);
+                    ScrollToLine(TextArea.Selection.StartPosition.Line);
+                }
+                else
+                {
+                    Select(0, 0);
+                    System.Media.SystemSounds.Beep.Play();
+                }
+            }
+
+            return index;
+        }
+
+        public int ReplaceNext(String text, String replace)
+        {
+            if (String.IsNullOrEmpty(text)) return -1;
+
+            String selectedText = TextArea.Selection.GetText();
+
+            if (selectedText == text)
+            {
+                TextArea.Selection.ReplaceSelectionWithText(replace);
+            }
+
+            return Find(text);
+        }
+
+        public int ReplaceAll(String text, String replace)
+        {
+            int counter = 0;
+
+            Select(0, 0);
+
+            while (ReplaceNext(text, replace) > -1)
+            {
+                counter++;
+            };
+
+            return counter;
+        }
+
+        public void ColorizeByKeyword(String text)
+        {
+            ResetColorizationByKeyword();
+
+            if (String.IsNullOrEmpty(text)) return;
+
+            var txt = Document.Text;
+
+            var indexes = txt.AllIndexesOf(text).ToList();
+
+            foreach (var index in indexes)
+            {
+                Document.BeginUpdate();
+
+                var line = Document.GetLineByOffset(index);
+
+                OffsetColorizer colorizer = new OffsetColorizer(line, index, index + text.Length, ColorizeBrush);
+                TextArea.TextView.LineTransformers.Add(colorizer);
+
+                Document.EndUpdate();
+            }
+        }
+
+        public void ResetColorizationByKeyword()
+        {
+            Document.BeginUpdate();
+
+            for (int i = 0; i < TextArea.TextView.LineTransformers.Count; i++)
+            {
+                if (TextArea.TextView.LineTransformers[i] is OffsetColorizer)
+                {
+                    TextArea.TextView.LineTransformers.RemoveAt(i);
+                    i--;
+                }
+            }
+
+            Document.EndUpdate();
+        }
+
+        public void HighlighError(int position, int length)
+        {
+            ITextMarker marker = errorMarkerService.Create(position, length);
+            marker.MarkerTypes = TextMarkerTypes.SquigglyUnderline;
+            marker.MarkerColor = Colors.Red;
+        }
+
+        public void ClearErrors()
+        {
+            errorMarkerService.RemoveAll(m => true);
+        }
+
         #endregion
     }
 }
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Tango.Scripting.Editors.csproj b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Tango.Scripting.Editors.csproj
index 94e3c4b0b..a70bbf3de 100644
--- a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Tango.Scripting.Editors.csproj
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Tango.Scripting.Editors.csproj
@@ -196,6 +196,8 @@
     <Compile Include="CodeCompletion\OverloadViewer.cs" />
     <Compile Include="Converters\BooleanToVisibilityConverter.cs" />
     <Compile Include="Converters\BooleanToVisibilityInversedConverter.cs" />
+    <Compile Include="Errors\ITextMarker.cs" />
+    <Compile Include="Errors\TextMarkerService.cs" />
     <Compile Include="ExtensionMethods.cs" />
     <Compile Include="Intellisense\ClassCompletionItemPopup.cs" />
     <Compile Include="Intellisense\CompletionItem.cs" />
@@ -508,6 +510,7 @@
     <Compile Include="Utils\ThrowUtil.cs" />
     <Compile Include="Utils\Win32.cs" />
     <CodeAnalysisDictionary Include="Properties\CodeAnalysisDictionary.xml" />
+    <Compile Include="XamlEditor.cs" />
     <Compile Include="Xml\AbstractAXmlVisitor.cs" />
     <Compile Include="Xml\AXmlAttribute.cs" />
     <Compile Include="Xml\AXmlAttributeCollection.cs" />
@@ -650,7 +653,7 @@
   </ItemGroup>
   <ProjectExtensions>
     <VisualStudio>
-      <UserProperties BuildVersion_UseGlobalSettings="True" BuildVersion_AssemblyInfoFilename="Properties\AssemblyInfo.cs" BuildVersion_UpdateAssemblyVersion="True" BuildVersion_BuildVersioningStyle="None.None.Increment.TimeStamp" BuildVersion_StartDate="2000/1/1" />
+      <UserProperties BuildVersion_StartDate="2000/1/1" BuildVersion_BuildVersioningStyle="None.None.Increment.TimeStamp" BuildVersion_UpdateAssemblyVersion="True" BuildVersion_AssemblyInfoFilename="Properties\AssemblyInfo.cs" BuildVersion_UseGlobalSettings="True" />
     </VisualStudio>
   </ProjectExtensions>
 </Project>
\ No newline at end of file
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Themes/Generic.xaml b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Themes/Generic.xaml
index 414006f3a..5de763df3 100644
--- a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Themes/Generic.xaml
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/Themes/Generic.xaml
@@ -141,6 +141,15 @@
         <Setter Property="Control.Cursor" Value="/Tango.Scripting.Editors;component/themes/RightArrow.cur"/>
     </Style>
 
+    <Style TargetType="{x:Type local:XamlEditor}">
+        <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"></Setter>
+        <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"></Setter>
+        <Setter Property="FontFamily" Value="Consolas"></Setter>
+        <Setter Property="FontSize" Value="13"></Setter>
+        <Setter Property="SyntaxHighlighting" Value="XML"></Setter>
+        <Setter Property="ShowLineNumbers" Value="True"></Setter>        
+    </Style>
+    
     <Style TargetType="{x:Type local:ScriptEditor}">
         <Setter Property="Background" Value="{StaticResource ScriptBackgroundBrush}"></Setter>
         <Setter Property="Foreground" Value="{StaticResource ScriptForegroundBrush}"></Setter>
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/XamlEditor.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/XamlEditor.cs
new file mode 100644
index 000000000..22b425ba2
--- /dev/null
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/XamlEditor.cs
@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace Tango.Scripting.Editors
+{
+    public class XamlEditor : TextEditor
+    {
+        private bool preventCodeUpdate;
+
+        public String Xaml
+        {
+            get { return (String)GetValue(XamlProperty); }
+            set { SetValue(XamlProperty, value); }
+        }
+        public static readonly DependencyProperty XamlProperty =
+            DependencyProperty.Register("Xaml", typeof(String), typeof(XamlEditor), new PropertyMetadata(null, (d, e) => (d as XamlEditor).OnXamlChanged()));
+
+        public XamlEditor()
+        {
+            TextChanged += XamlEditor_TextChanged;
+        }
+
+        private void XamlEditor_TextChanged(object sender, EventArgs e)
+        {
+            if (!preventCodeUpdate)
+            {
+                preventCodeUpdate = true;
+                Xaml = Text;
+                preventCodeUpdate = false;
+            }
+        }
+
+        private void OnXamlChanged()
+        {
+            if (!preventCodeUpdate)
+            {
+                preventCodeUpdate = true;
+                Text = Xaml;
+                preventCodeUpdate = false;
+            }
+        }
+    }
+}