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//
// RopeTextSource.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 Mono.TextEditor.Utils;
namespace MonoDevelop.SourceEditor.Wrappers
{
class RopeTextSource : ITextSource
{
readonly Rope<char> rope;
readonly ITextSourceVersion version;
public RopeTextSource (Mono.TextEditor.Utils.Rope<char> rope, System.Text.Encoding encoding, bool useBom, ITextSourceVersion version = null)
{
if (rope == null)
throw new ArgumentNullException ("rope");
this.rope = rope;
this.encoding = encoding;
UseBOM = useBom;
this.version = version;
}
#region ITextSource implementation
char ITextSource.GetCharAt (int offset)
{
return rope [offset];
}
char ITextSource.this [int offset] {
get {
return rope [offset];
}
}
string ITextSource.GetTextAt (int offset, int length)
{
return rope.ToString (offset, length);
}
System.IO.TextReader ITextSource.CreateReader ()
{
return new RopeTextReader (rope);
}
System.IO.TextReader ITextSource.CreateReader (int offset, int length)
{
return new RopeTextReader (rope.GetRange (offset, length));
}
void ITextSource.WriteTextTo (System.IO.TextWriter writer)
{
rope.WriteTo (writer, 0, rope.Length);
}
void ITextSource.WriteTextTo (System.IO.TextWriter writer, int offset, int length)
{
rope.WriteTo (writer, offset, length);
}
ITextSource ITextSource.CreateSnapshot ()
{
return this;
}
ITextSource ITextSource.CreateSnapshot (int offset, int length)
{
return new RopeTextSource (rope.GetRange (offset, length), Encoding, UseBOM);
}
ITextSourceVersion ITextSource.Version {
get {
return version;
}
}
public bool UseBOM {
get;
private set;
}
System.Text.Encoding encoding;
public System.Text.Encoding Encoding {
get {
return encoding ?? System.Text.Encoding.UTF8;
}
}
int ITextSource.Length {
get {
return rope.Length;
}
}
string ITextSource.Text {
get {
return rope.ToString ();
}
}
#endregion
}
}
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