// 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.IO; using ICSharpCode.AvalonEdit.Utils; #if NREFACTORY using ICSharpCode.NRefactory.Editor; #endif namespace ICSharpCode.AvalonEdit.Document { /// <summary> /// Implements the ITextSource interface using a rope. /// </summary> [Serializable] public sealed class RopeTextSource : ITextSource { readonly Rope<char> rope; readonly ITextSourceVersion version; /// <summary> /// Creates a new RopeTextSource. /// </summary> public RopeTextSource(Rope<char> rope) { if (rope == null) throw new ArgumentNullException("rope"); this.rope = rope.Clone(); } /// <summary> /// Creates a new RopeTextSource. /// </summary> public RopeTextSource(Rope<char> rope, ITextSourceVersion version) { if (rope == null) throw new ArgumentNullException("rope"); this.rope = rope.Clone(); this.version = version; } /// <summary> /// Returns a clone of the rope used for this text source. /// </summary> /// <remarks> /// RopeTextSource only publishes a copy of the contained rope to ensure that the underlying rope cannot be modified. /// </remarks> [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate", Justification="Not a property because it creates a clone")] public Rope<char> GetRope() { return rope.Clone(); } /// <inheritdoc/> public string Text { get { return rope.ToString(); } } /// <inheritdoc/> public int TextLength { get { return rope.Length; } } /// <inheritdoc/> public char GetCharAt(int offset) { return rope[offset]; } /// <inheritdoc/> public string GetText(int offset, int length) { return rope.ToString(offset, length); } /// <inheritdoc/> public string GetText(ISegment segment) { return rope.ToString(segment.Offset, segment.Length); } /// <inheritdoc/> public TextReader CreateReader() { return new RopeTextReader(rope); } /// <inheritdoc/> public TextReader CreateReader(int offset, int length) { return new RopeTextReader(rope.GetRange(offset, length)); } /// <inheritdoc/> public ITextSource CreateSnapshot() { return this; } /// <inheritdoc/> public ITextSource CreateSnapshot(int offset, int length) { return new RopeTextSource(rope.GetRange(offset, length)); } /// <inheritdoc/> public int IndexOf(char c, int startIndex, int count) { return rope.IndexOf(c, startIndex, count); } /// <inheritdoc/> public int IndexOfAny(char[] anyOf, int startIndex, int count) { return rope.IndexOfAny(anyOf, startIndex, count); } /// <inheritdoc/> public int LastIndexOf(char c, int startIndex, int count) { return rope.LastIndexOf(c, startIndex, count); } /// <inheritdoc/> public ITextSourceVersion Version { get { return version; } } /// <inheritdoc/> public int IndexOf(string searchText, int startIndex, int count, StringComparison comparisonType) { return rope.IndexOf(searchText, startIndex, count, comparisonType); } /// <inheritdoc/> public int LastIndexOf(string searchText, int startIndex, int count, StringComparison comparisonType) { return rope.LastIndexOf(searchText, startIndex, count, comparisonType); } /// <inheritdoc/> public void WriteTextTo(TextWriter writer) { rope.WriteTo(writer, 0, rope.Length); } /// <inheritdoc/> public void WriteTextTo(TextWriter writer, int offset, int length) { rope.WriteTo(writer, offset, length); } } }