// 
// HiddenTextEditorViewContent.cs
//  
// Author:
//       Mike Krüger <mkrueger@novell.com>
// 
// Copyright (c) 2009 Novell, Inc (http://www.novell.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.Ide.Gui.Content;
using MonoDevelop.Core;

namespace MonoDevelop.Ide.Gui
{
	public class HiddenTextEditorViewContent : MonoDevelop.Ide.Gui.AbstractViewContent, IEditableTextBuffer, Mono.TextEditor.ITextEditorDataProvider
	{
		Mono.TextEditor.TextEditorData data;
		
		public override Gtk.Widget Control {
			get {
				return null;
			}
		}
		
		public HiddenTextEditorViewContent ()
		{
			document = new Mono.TextEditor.Document ();
			data = new Mono.TextEditor.TextEditorData (document);
			Name = "";
		}
		
		public override void Load (string fileName)
		{
		}
		
		public FilePath Name { 
			get;
			set;
		}
		
		public bool HasInputFocus {
			get { return false; }
		}
		
		public int LineCount {
			get {
				return document.LineCount;
			}
		}
		
		Mono.TextEditor.Document document;
		public string Text {
			get {
				return document.Text;
			}
			set {
				document.Text = value;
			}
		}
		
		public int InsertText (int position, string text)
		{
			((Mono.TextEditor.IBuffer)document).Insert (position, text);
			return text.Length;
		}
		
		public void DeleteText (int position, int length)
		{
			((Mono.TextEditor.IBuffer)document).Replace (position, length, "");
		}
		
		public int Length {
			get {
				return document.Length;
			}
		}
		
		public string GetText (int startPosition, int endPosition)
		{
			return document.GetTextBetween (startPosition, endPosition);
		}
		public char GetCharAt (int position)
		{
			return document.GetCharAt (position);
		}
		
		public int GetPositionFromLineColumn (int line, int column)
		{
			return document.LocationToOffset (line, column);
		}
		
		public void GetLineColumnFromPosition (int position, out int line, out int column)
		{
			Mono.TextEditor.DocumentLocation loc = document.OffsetToLocation (position);
			line = loc.Line;
			column = loc.Column;
		}
		
		public string SelectedText { get { return ""; } set { } }
		
		public int CursorPosition {
			get {
				return data.Caret.Offset;
			}
			set {
				data.Caret.Offset = value;
			}
		}

		public int SelectionStartPosition { 
			get {
				if (!data.IsSomethingSelected)
					return data.Caret.Offset;
				return data.SelectionRange.Offset;
			}
		}
		
		public int SelectionEndPosition { 
			get {
				if (!data.IsSomethingSelected)
					return data.Caret.Offset;
				return data.SelectionRange.EndOffset;
			}
		}
		
		public void Select (int startPosition, int endPosition)
		{
			data.SelectionRange = new Mono.TextEditor.Segment (startPosition, endPosition - startPosition);
		}
		
		public void ShowPosition (int position)
		{
		}
		
		public bool EnableUndo {
			get {
				return false;
			}
		}
		public bool EnableRedo {
			get {
				return false;
			}
		}
		
		public void SetCaretTo (int line, int column)
		{
		}
		public void SetCaretTo (int line, int column, bool highlightCaretLine)
		{
		}
		
		public void Undo()
		{
		}
		public void Redo()
		{
		}
		
		public void BeginAtomicUndo ()
		{
		}
		public void EndAtomicUndo ()
		{
		}
		
		public Mono.TextEditor.TextEditorData GetTextEditorData ()
		{
			return data;
		}
		public event EventHandler CaretPositionSet;
		public event EventHandler<TextChangedEventArgs> TextChanged;
	}
}