1 files changed, 98 insertions, 0 deletions
diff --git a/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/Projection/ProjectedSemanticHighlighting.cs b/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/Projection/ProjectedSemanticHighlighting.cs
new file mode 100644
index 0000000000..82ceb984a2
--- /dev/null
+++ b/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/Projection/ProjectedSemanticHighlighting.cs
@@ -0,0 +1,98 @@
+//
+// ProjectedSemanticHighlighting.cs
+//
+// Author:
+//       Mike Krüger <mkrueger@xamarin.com>
+//
+// Copyright (c) 2015 Xamarin Inc. (http://xamarin.com)
+//
+// 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.Linq;
+using MonoDevelop.Ide.Editor.Highlighting;
+using System.Collections.Generic;
+
+namespace MonoDevelop.Ide.Editor.Projection
+{
+	sealed class ProjectedSemanticHighlighting : SemanticHighlighting
+	{
+		List<Projection> projections;
+
+		public ProjectedSemanticHighlighting (TextEditor editor, DocumentContext documentContext, IEnumerable<Projection> projections) : base (editor, documentContext)
+		{
+			this.projections = new List<Projection> (projections);
+			foreach (var p in this.projections) {
+				if (p.ProjectedEditor.SemanticHighlighting == null)
+					continue;
+				p.ProjectedEditor.SemanticHighlighting.SemanticHighlightingUpdated += HandleSemanticHighlightingUpdated;
+			}
+		}
+
+		public void UpdateProjection (IEnumerable<Projection>  projections)
+		{
+			foreach (var p in this.projections) {
+				if (p.ProjectedEditor.SemanticHighlighting == null)
+					continue;
+				p.ProjectedEditor.SemanticHighlighting.SemanticHighlightingUpdated -= HandleSemanticHighlightingUpdated;
+			}
+			this.projections = new List<Projection> (projections);
+			foreach (var p in this.projections) {
+				if (p.ProjectedEditor.SemanticHighlighting == null)
+					continue;
+				p.ProjectedEditor.SemanticHighlighting.SemanticHighlightingUpdated += HandleSemanticHighlightingUpdated;
+			}
+		}
+
+		void HandleSemanticHighlightingUpdated (object sender, EventArgs e)
+		{
+			NotifySemanticHighlightingUpdate ();
+		}
+
+		protected override void DocumentParsed ()
+		{
+			NotifySemanticHighlightingUpdate ();
+		}
+
+		public override IEnumerable<ColoredSegment> GetColoredSegments (MonoDevelop.Core.Text.ISegment segment)
+		{
+			foreach (Projection p in projections) {
+				foreach (var seg in p.ProjectedSegments) {
+					if (seg.IsInOriginal (segment)) {
+						if (p.ProjectedEditor.SemanticHighlighting == null)
+							continue;
+
+						int delta = segment.EndOffset - (seg.Offset + seg.Length);
+						int len = seg.Length;
+						if (delta < 0) {
+							len += delta;
+						}
+						foreach (var cs in p.ProjectedEditor.SemanticHighlighting.GetColoredSegments (new MonoDevelop.Core.Text.TextSegment (seg.ProjectedOffset, len))) {
+							yield return new ColoredSegment (cs.Offset - seg.ProjectedOffset + seg.Offset, cs.Length, cs.ColorStyleKey);
+
+						}
+						foreach (var cs in GetColoredSegments (MonoDevelop.Core.Text.TextSegment.FromBounds (seg.Offset + len, segment.EndOffset)))
+							yield return cs;
+						yield break;
+					}
+				}
+			}
+		}
+	}
+}
+