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//
// SemanticHighlighting.cs
//
// Author:
// Mike Krüger <mkrueger@xamarin.com>
//
// Copyright (c) 2014 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 MonoDevelop.Core.Text;
using System.Collections.Generic;
namespace MonoDevelop.Ide.Editor.Highlighting
{
/// <summary>
/// Semantic highlighting adds the ability to add highlighting for things that require
/// a background parser to be colored. For example type names.
/// </summary>
public abstract class SemanticHighlighting : IDisposable
{
protected readonly internal TextEditor editor;
protected readonly internal DocumentContext documentContext;
protected SemanticHighlighting (TextEditor editor, DocumentContext documentContext)
{
this.editor = editor;
this.documentContext = documentContext;
this.documentContext.DocumentParsed += HandleDocumentParsed;
}
protected abstract void DocumentParsed ();
public void NotifySemanticHighlightingUpdate ()
{
var handler = SemanticHighlightingUpdated;
if (handler != null)
handler (this, EventArgs.Empty);
}
/// <summary>
/// Colorize the specified offset, count and colorizeCallback.
/// </summary>
/// <param name="segment">The area to run the colorizer in.</param>
public abstract IEnumerable<ColoredSegment> GetColoredSegments (ISegment segment);
void HandleDocumentParsed (object sender, EventArgs e)
{
if (DefaultSourceEditorOptions.Instance.EnableSemanticHighlighting)
DocumentParsed ();
}
public void Dispose ()
{
documentContext.DocumentParsed -= HandleDocumentParsed;
}
internal event EventHandler SemanticHighlightingUpdated;
}
}
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