C# TextEditorData.ClearSelection方法代码示例

		public static void Left (TextEditorData data)
		{
			if (Platform.IsMac && data.IsSomethingSelected && !data.Caret.PreserveSelection) {
				data.Caret.Offset = System.Math.Min (data.SelectionAnchor, data.Caret.Offset);
				data.ClearSelection ();
				return;
			}
			
			LineSegment line = data.Document.GetLine (data.Caret.Line);
			IEnumerable<FoldSegment> foldings = data.Document.GetEndFoldings (line);
			FoldSegment segment = null;
			foreach (FoldSegment folding in foldings) {
				if (folding.IsFolded && folding.EndColumn == data.Caret.Column) {
					segment = folding;
					break;
				}
			}
			if (segment != null) {
				data.Caret.Location = data.Document.OffsetToLocation (segment.StartLine.Offset + segment.Column); 
				return;
			}
			
			if (data.Caret.Column > 0) {
				if (data.Caret.Column > line.EditableLength) {
					data.Caret.Column = line.EditableLength;
				} else {
					data.Caret.Column--;
				}
			} else if (data.Caret.Line > 0) {
				LineSegment prevLine = data.Document.GetLine (data.Caret.Line - 1);
				data.Caret.Location = new DocumentLocation (data.Caret.Line - 1, prevLine.EditableLength);
			}
		}

		public static void Left (TextEditorData data)
		{
			if (Platform.IsMac && data.IsSomethingSelected && !data.Caret.PreserveSelection) {
				data.Caret.Offset = System.Math.Min (data.SelectionAnchor, data.Caret.Offset);
				data.ClearSelection ();
				return;
			}
			
			if (data.Caret.Column > DocumentLocation.MinColumn) {
				DocumentLine line = data.Document.GetLine (data.Caret.Line);
				if (data.Caret.Column > line.Length + 1) {
					if (data.Caret.AllowCaretBehindLineEnd) {
						data.Caret.Column--;
					} else {
						data.Caret.Column = line.Length + 1;
					}
				} else {
					int offset = data.Caret.Offset - 1;
					foreach (var folding in data.Document.GetFoldingsFromOffset (offset).Where (f => f.IsFolded && f.Offset < offset)) {
						offset = System.Math.Min (offset, folding.Offset);
					}
					data.Caret.Offset = offset;
				}
			} else if (data.Caret.Line > DocumentLocation.MinLine) {
				DocumentLine prevLine = data.Document.GetLine (data.Caret.Line - 1);
				var nextLocation = new DocumentLocation (data.Caret.Line - 1, prevLine.Length + 1);
				if (data.HasIndentationTracker && data.Options.IndentStyle == IndentStyle.Virtual && nextLocation.Column == DocumentLocation.MinColumn)
					nextLocation = new DocumentLocation (data.Caret.Line - 1, data.GetVirtualIndentationColumn (nextLocation));
				data.Caret.Location = nextLocation;
			}
		}

		public static void Right (TextEditorData data)
		{
			if (Platform.IsMac && data.IsSomethingSelected && !data.Caret.PreserveSelection) {
				data.Caret.Offset = System.Math.Max (data.SelectionAnchor, data.Caret.Offset);
				data.ClearSelection ();
				return;
			}
			
			DocumentLine line = data.Document.GetLine (data.Caret.Line);
			IEnumerable<FoldSegment > foldings = data.Document.GetStartFoldings (line);
			FoldSegment segment = null;
			foreach (FoldSegment folding in foldings) {
				if (folding.IsFolded && folding.Column == data.Caret.Column) {
					segment = folding;
					break;
				}
			}
			if (segment != null) {
				data.Caret.Offset = segment.EndOffset; 
				return;
			}

			if (data.Caret.Column >= line.Length + 1) {
				int nextColumn;
				if (data.HasIndentationTracker && data.Options.IndentStyle == IndentStyle.Virtual && data.Caret.Column == DocumentLocation.MinColumn) {
					nextColumn = data.GetVirtualIndentationColumn (data.Caret.Location);
				} else if (data.Caret.AllowCaretBehindLineEnd) {
					nextColumn = data.Caret.Column + 1;
				} else {
					nextColumn = line.Length + 1;
				}

				if (data.Caret.Column < nextColumn) {
					data.Caret.Column = nextColumn;
				} else {
					if (data.Caret.Line < data.LineCount)
						data.Caret.Location = new DocumentLocation (data.Caret.Line + 1, DocumentLocation.MinColumn);
				}
			} else {
				data.Caret.Column++;
			}
		}

		public static void Right (TextEditorData data)
		{
			if (Platform.IsMac && data.IsSomethingSelected && !data.Caret.PreserveSelection) {
				data.Caret.Offset = System.Math.Max (data.SelectionAnchor, data.Caret.Offset);
				data.ClearSelection ();
				return;
			}
			
			LineSegment line = data.Document.GetLine (data.Caret.Line);
			IEnumerable<FoldSegment > foldings = data.Document.GetStartFoldings (line);
			FoldSegment segment = null;
			foreach (FoldSegment folding in foldings) {
				if (folding.IsFolded && folding.Column == data.Caret.Column) {
					segment = folding;
					break;
				}
			}
			if (segment != null) {
				data.Caret.Offset = segment.EndOffset; 
				return;
			}
			if (data.Caret.Column < line.EditableLength + 1 || data.Caret.AllowCaretBehindLineEnd) {
				if (data.Caret.Column >= line.EditableLength + 1) {
					int nextColumn = data.GetNextVirtualColumn (data.Caret.Line, data.Caret.Column);
					if (data.Caret.Column != nextColumn) {
						data.Caret.Column = nextColumn;
					} else {
						data.Caret.Location = new DocumentLocation (data.Caret.Line + 1, DocumentLocation.MinColumn);
						data.Caret.CheckCaretPosition ();
					}
				} else {
					data.Caret.Column++;
				}
			} else if (data.Caret.Line + 1 <= data.Document.LineCount) {
				data.Caret.Location = new DocumentLocation (data.Caret.Line + 1, DocumentLocation.MinColumn);
			}
		}

		public static void Left (TextEditorData data)
		{
			if (Platform.IsMac && data.IsSomethingSelected && !data.Caret.PreserveSelection) {
				data.Caret.Offset = System.Math.Min (data.SelectionAnchor, data.Caret.Offset);
				data.ClearSelection ();
				return;
			}
			
			if (data.Caret.Column > DocumentLocation.MinColumn) {
				LineSegment line = data.Document.GetLine (data.Caret.Line);
				if (data.Caret.Column > line.EditableLength + 1) {
					data.Caret.Column = line.EditableLength + 1;
				} else {
					int offset = data.Caret.Offset - 1;
					foreach (var folding in data.Document.GetFoldingsFromOffset (offset).Where (f => f.IsFolded && f.Offset < offset)) {
						offset = System.Math.Min (offset, folding.Offset);
					}
					data.Caret.Offset = offset;
				}
			} else if (data.Caret.Line > DocumentLocation.MinLine) {
				LineSegment prevLine = data.Document.GetLine (data.Caret.Line - 1);
				data.Caret.Location = new DocumentLocation (data.Caret.Line - 1, prevLine.EditableLength + 1);
			}
		}

		public static void Delete (TextEditorData data)
		{
			if (!data.CanEditSelection)
				return;

			using (var undoGroup = data.OpenUndoGroup ()) {
				if (data.IsSomethingSelected) {
					// case: zero width block selection
					if (data.MainSelection.SelectionMode == SelectionMode.Block && data.MainSelection.Anchor.Column == data.MainSelection.Lead.Column) {
						var col = data.MainSelection.Lead.Column;
						if (col <= DocumentLocation.MinColumn) {
							data.ClearSelection ();
							return;
						}
						bool preserve = data.Caret.PreserveSelection;
						data.Caret.PreserveSelection = true;
						col--;
						for (int lineNumber = data.MainSelection.MinLine; lineNumber <= data.MainSelection.MaxLine; lineNumber++) {
							DocumentLine lineSegment = data.Document.GetLine (lineNumber);
							if (col < lineSegment.Length)
								data.Remove (lineSegment.Offset + col, 1);
						}
						data.Caret.PreserveSelection = preserve;
						data.Document.CommitMultipleLineUpdate (data.MainSelection.MinLine, data.MainSelection.MaxLine);
						return;
					}
					data.DeleteSelectedText (data.MainSelection.SelectionMode != SelectionMode.Block);
					return;
				}
				if (data.Caret.Offset >= data.Document.TextLength)
					return;

				data.EnsureCaretIsNotVirtual ();

				DocumentLine line = data.Document.GetLine (data.Caret.Line);
				if (data.Caret.Column == line.Length + 1) {
					if (data.Caret.Line < data.Document.LineCount) { 
						data.Remove (line.EndOffsetIncludingDelimiter - line.DelimiterLength, line.DelimiterLength);
						if (line.EndOffsetIncludingDelimiter == data.Document.TextLength)
							line.UnicodeNewline = UnicodeNewline.Unknown;
					}
				} else {
					data.Remove (data.Caret.Offset, 1); 
					data.Document.CommitLineUpdate (data.Caret.Line);
				}
				data.FixVirtualIndentation ();
			}
		}

		public static void Delete (TextEditorData data)
		{
			if (!data.CanEditSelection)
				return;
			if (data.IsSomethingSelected) {
				// case: zero width block selection
				if (data.MainSelection.SelectionMode == SelectionMode.Block && data.MainSelection.Anchor.Column == data.MainSelection.Lead.Column) {
					var col = data.MainSelection.Lead.Column;
					if (col <= DocumentLocation.MinColumn) {
						data.ClearSelection ();
						return;
					}
					bool preserve = data.Caret.PreserveSelection;
					data.Caret.PreserveSelection = true;
					col--;
					for (int lineNumber = data.MainSelection.MinLine; lineNumber <= data.MainSelection.MaxLine; lineNumber++) {
						LineSegment lineSegment = data.Document.GetLine (lineNumber);
						if (col < lineSegment.EditableLength)
							data.Remove (lineSegment.Offset + col, 1);
					}
					data.Caret.PreserveSelection = preserve;
					data.Document.CommitMultipleLineUpdate (data.MainSelection.MinLine, data.MainSelection.MaxLine);
					return;
				}
				data.DeleteSelectedText (data.MainSelection.SelectionMode != SelectionMode.Block);
				return;
			}
			if (data.Caret.Offset >= data.Document.Length)
				return;
			LineSegment line = data.Document.GetLine (data.Caret.Line);
			if (data.Caret.Column == line.EditableLength + 1) {
				if (data.Caret.Line < data.Document.LineCount) { 
					data.Remove (line.EndOffset - line.DelimiterLength, line.DelimiterLength);
					if (line.EndOffset == data.Document.Length)
						line.DelimiterLength = 0;
				}
			} else {
				data.Remove (data.Caret.Offset, 1); 
				data.Document.CommitLineUpdate (data.Caret.Line);
			}
		}

		static int PasteFrom (Clipboard clipboard, TextEditorData data, bool preserveSelection, int insertionOffset, bool preserveState)
		{
			int result = -1;
			if (!data.CanEdit (data.Document.OffsetToLineNumber (insertionOffset)))
				return result;
			if (clipboard.WaitIsTargetAvailable (CopyOperation.MD_ATOM)) {
				clipboard.RequestContents (CopyOperation.MD_ATOM, delegate(Clipboard clp, SelectionData selectionData) {
					if (selectionData.Length > 0) {
						byte[] selBytes = selectionData.Data;
	
						string text = System.Text.Encoding.UTF8.GetString (selBytes, 1, selBytes.Length - 1);
						bool pasteBlock = (selBytes [0] & 1) == 1;
						bool pasteLine = (selBytes [0] & 2) == 2;
						
						using (var undo = data.OpenUndoGroup ()) {
							if (preserveSelection && data.IsSomethingSelected)
								data.DeleteSelectedText ();
							
							data.Caret.PreserveSelection = true;
							if (pasteBlock) {
								string[] lines = text.Split ('\r');
								int lineNr = data.Document.OffsetToLineNumber (insertionOffset);
								int col = insertionOffset - data.Document.GetLine (lineNr).Offset;
								int visCol = data.Document.GetLine (lineNr).GetVisualColumn (data, col);
								DocumentLine curLine;
								int lineCol = col;
								result = 0;
								for (int i = 0; i < lines.Length; i++) {
									while (data.Document.LineCount <= lineNr + i) {
										data.Insert (data.Document.TextLength, Environment.NewLine);
										result += Environment.NewLine.Length;
									}
									curLine = data.Document.GetLine (lineNr + i);
									if (lines [i].Length > 0) {
										lineCol = curLine.GetLogicalColumn (data, visCol);
										if (curLine.Length + 1 < lineCol) {
											result += lineCol - curLine.Length;
											data.Insert (curLine.Offset + curLine.Length, new string (' ', lineCol - curLine.Length));
										}
										data.Insert (curLine.Offset + lineCol, lines [i]);
										result += lines [i].Length;
									}
									if (!preserveState)
										data.Caret.Offset = curLine.Offset + lineCol + lines [i].Length;
								}
							} else if (pasteLine) {
								result = text.Length;
								DocumentLine curLine = data.Document.GetLine (data.Caret.Line);
								data.Insert (curLine.Offset, text + data.EolMarker);
							} else {
								int offset = data.Caret.Offset;
								data.InsertAtCaret (text);
								data.PasteText (offset, text, data.Caret.Offset - offset);
							}
							/*				data.MainSelection = new Selection (data.Document.OffsetToLocation (insertionOffset),
							                                    data.Caret.Location,
							                                    lines.Length > 1 ? SelectionMode.Block : SelectionMode.Normal);*/
							if (!preserveState)
								data.ClearSelection ();
							data.Caret.PreserveSelection = false;
						}
					}
				});
				// we got MD_ATOM text - no need to request text. (otherwise buffer may get copied twice).
				return result;
			}
			
			if (result < 0 && clipboard.WaitIsTextAvailable ()) {
				clipboard.RequestText (delegate(Clipboard clp, string text) {
					if (string.IsNullOrEmpty (text))
						return;
					using (var undo = data.OpenUndoGroup ()) {
						int caretPos = data.Caret.Offset;
						if (data.IsSomethingSelected && data.MainSelection.SelectionMode == SelectionMode.Block) {
							data.Caret.PreserveSelection = true;
							data.DeleteSelectedText (false);
							int textLength = 0;
							int minLine = data.MainSelection.MinLine;
							int maxLine = data.MainSelection.MaxLine;
							var visualInsertLocation = data.LogicalToVisualLocation (data.Caret.Location);
							for (int lineNumber = minLine; lineNumber <= maxLine; lineNumber++) {
								DocumentLine lineSegment = data.GetLine (lineNumber);
								int insertOffset = lineSegment.GetLogicalColumn (data, visualInsertLocation.Column) - 1;
								if (lineSegment.Length < insertOffset) {
									int visualLastColumn = lineSegment.GetVisualColumn (data, lineSegment.Length + 1);
									int charsToInsert = visualInsertLocation.Column - visualLastColumn;
									int spaceCount = charsToInsert % data.Options.TabSize;
									string textToInsert = new string ('\t', (charsToInsert - spaceCount) / data.Options.TabSize) + new string (' ', spaceCount) + text;
									insertOffset = lineSegment.Length;
									int insertedChars = data.Insert (lineSegment.Offset + insertOffset, textToInsert);
									data.PasteText (lineSegment.Offset + insertOffset, textToInsert, insertedChars);
								} else {
									textLength = data.Insert (lineSegment.Offset + insertOffset, text);
									data.PasteText (lineSegment.Offset + insertOffset, text, textLength);
								}
							}
							
							data.MainSelection.Anchor = new DocumentLocation (System.Math.Max (DocumentLocation.MinLine, data.Caret.Line == minLine ? maxLine : minLine), System.Math.Max (DocumentLocation.MinColumn, data.Caret.Column - textLength));
							data.MainSelection.Lead = new DocumentLocation (data.Caret.Line, data.Caret.Column);
							data.Caret.PreserveSelection = false;
//.........这里部分代码省略.........

		static int PasteFrom (Clipboard clipboard, TextEditorData data, bool preserveSelection, int insertionOffset, bool preserveState)
		{
			int result = -1;
			if (!data.CanEdit (data.Document.OffsetToLineNumber (insertionOffset)))
				return result;
			clipboard.RequestContents (CopyOperation.MD_ATOM, delegate(Clipboard clp, SelectionData selectionData) {
				if (selectionData.Length > 0) {
					byte[] selBytes = selectionData.Data;

					string text = System.Text.Encoding.UTF8.GetString (selBytes, 1, selBytes.Length - 1);
					bool pasteBlock = (selBytes[0] & 1) == 1;
					bool pasteLine = (selBytes[0] & 2) == 2;
					if (!pasteBlock && !pasteLine)
						return;
					
					data.Document.BeginAtomicUndo ();
					if (preserveSelection && data.IsSomethingSelected)
						data.DeleteSelectedText ();
					
					data.Caret.PreserveSelection = true;
					if (pasteBlock) {
						string[] lines = text.Split ('\r');
						int lineNr = data.Document.OffsetToLineNumber (insertionOffset);
						int col = insertionOffset - data.Document.GetLine (lineNr).Offset;
						int visCol = data.Document.GetLine (lineNr).GetVisualColumn (data, col);
						LineSegment curLine;
						int lineCol = col;
						result = 0;
						for (int i = 0; i < lines.Length; i++) {
							while (data.Document.LineCount <= lineNr + i) {
								data.Insert (data.Document.Length, Environment.NewLine);
								result += Environment.NewLine.Length;
							}
							curLine = data.Document.GetLine (lineNr + i);
							if (lines[i].Length > 0) {
								lineCol = curLine.GetLogicalColumn (data, visCol);
								if (curLine.EditableLength + 1 < lineCol) {
									result += lineCol - curLine.EditableLength;
									data.Insert (curLine.Offset + curLine.EditableLength, new string (' ', lineCol - curLine.EditableLength));
								}
								data.Insert (curLine.Offset + lineCol, lines[i]);
								result += lines[i].Length;
							}
							if (!preserveState)
								data.Caret.Offset = curLine.Offset + lineCol + lines[i].Length;
						}
					} else if (pasteLine) {
						result += text.Length;
						LineSegment curLine = data.Document.GetLine (data.Caret.Line);
						data.Insert (curLine.Offset, text + data.EolMarker);
						if (!preserveState)
							data.Caret.Offset += text.Length + data.EolMarker.Length;
					}
					/*				data.MainSelection = new Selection (data.Document.OffsetToLocation (insertionOffset),
					                                    data.Caret.Location,
					                                    lines.Length > 1 ? SelectionMode.Block : SelectionMode.Normal);*/
					if (!preserveState)
						data.ClearSelection ();
					data.Caret.PreserveSelection = false;
					data.Document.EndAtomicUndo ();
				}
			});

			if (result < 0) {
				clipboard.WaitIsTextAvailable ();
				clipboard.RequestText (delegate(Clipboard clp, string text) {
					if (string.IsNullOrEmpty (text))
						return;
					data.Document.BeginAtomicUndo ();
					int caretPos = data.Caret.Offset;
					if (data.IsSomethingSelected && data.MainSelection.SelectionMode == SelectionMode.Block) {
						data.Caret.PreserveSelection = true;
						if (!data.MainSelection.IsDirty) {
							data.DeleteSelectedText (false);
							data.MainSelection.IsDirty = true;
						}
						int textLength = 0;
						int column = data.Caret.Column;
						int minLine = data.MainSelection.MinLine;
						int maxLine = data.MainSelection.MaxLine;
						for (int lineNumber = minLine; lineNumber <= maxLine; lineNumber++) {
							int offset = data.Document.GetLine (lineNumber).Offset + column;
							textLength = data.Insert (offset, text);
							data.PasteText (offset, text);
						}
						
						data.Caret.Offset += textLength;
						data.MainSelection.Anchor = new DocumentLocation (data.Caret.Line == minLine ? maxLine : minLine, data.Caret.Column - textLength);
						data.MainSelection.Lead = new DocumentLocation (data.Caret.Line, data.Caret.Column);
						data.Caret.PreserveSelection = false;
						data.Document.CommitMultipleLineUpdate (data.MainSelection.MinLine, data.MainSelection.MaxLine);
					} else {
						ISegment selection = data.SelectionRange;
						if (preserveSelection && data.IsSomethingSelected)
							data.DeleteSelectedText ();
						data.Caret.PreserveSelection = true;
						//int oldLine = data.Caret.Line;
						int textLength = data.Insert (insertionOffset, text);
						result = textLength;
	
//.........这里部分代码省略.........

		public static void ToDocumentStart (TextEditorData data)
		{
			if (!data.Caret.PreserveSelection)
				data.ClearSelection ();
			data.Caret.Location = new DocumentLocation (0, 0);
		}

		static void InternalCaretMoveHome (TextEditorData data, bool firstNonWhitespace, bool hop)
		{
			if (!data.Caret.PreserveSelection)
				data.ClearSelection ();
			DocumentLocation newLocation = data.Caret.Location;
			LineSegment line = data.Document.GetLine (data.Caret.Line);
			
			if (firstNonWhitespace) {
				int homeMark = GetHomeMark (data.Document, line);
				if (hop) {
					newLocation.Column = data.Caret.Column == homeMark ? 0 : homeMark;
				} else {
					newLocation.Column = homeMark;
				}
			} else {
				newLocation.Column = 0;
			}
			
			// handle folding
			IEnumerable<FoldSegment> foldings = data.Document.GetEndFoldings (line);
			FoldSegment segment = null;
			foreach (FoldSegment folding in foldings) {
				if (folding.IsFolded && folding.Contains (data.Document.LocationToOffset (newLocation))) {
					segment = folding;
					break;
				}
			}
			if (segment != null) 
				newLocation = data.Document.OffsetToLocation (segment.StartLine.Offset); 
			
			if (newLocation != data.Caret.Location) 
				data.Caret.Location = newLocation;
		}

		public static void ClearSelection (TextEditorData data)
		{
			data.ClearSelection ();
		}

		static int PasteFrom (Clipboard clipboard, TextEditorData data, bool preserveSelection, int insertionOffset, bool preserveState)
		{
			int result = -1;
			if (!data.CanEdit (data.Document.OffsetToLineNumber (insertionOffset)))
				return result;
			if (clipboard.WaitIsTargetAvailable (CopyOperation.MD_ATOM)) {
				clipboard.RequestContents (CopyOperation.MD_ATOM, delegate(Clipboard clp, SelectionData selectionData) {
					if (selectionData.Length > 0) {
						byte[] selBytes = selectionData.Data;
						var upperBound = System.Math.Max (0, System.Math.Min (selBytes [1], selBytes.Length - 2));
						byte[] copyData = new byte[upperBound];
						Array.Copy (selBytes, 2, copyData, 0, copyData.Length);
						var rawTextOffset = 1 + 1 + copyData.Length;
						string text = Encoding.UTF8.GetString (selBytes, rawTextOffset, selBytes.Length - rawTextOffset);
						bool pasteBlock = (selBytes [0] & 1) == 1;
						bool pasteLine = (selBytes [0] & 2) == 2;
						if (pasteBlock) {
							using (var undo = data.OpenUndoGroup ()) {
								var version = data.Document.Version;
								if (!preserveSelection)
									data.DeleteSelectedText (!data.IsSomethingSelected || data.MainSelection.SelectionMode != SelectionMode.Block);
								int startLine = data.Caret.Line;
								data.EnsureCaretIsNotVirtual ();
								insertionOffset = version.MoveOffsetTo (data.Document.Version, insertionOffset);

								data.Caret.PreserveSelection = true;
								var lines = new List<string> ();
								int offset = 0;
								while (true) {
									var delimiter = LineSplitter.NextDelimiter (text, offset);
									if (delimiter.IsInvalid)
										break;

									int delimiterEndOffset = delimiter.EndOffset;
									lines.Add (text.Substring (offset, delimiter.Offset - offset));
									offset = delimiterEndOffset;
								}
								if (offset < text.Length)
									lines.Add (text.Substring (offset, text.Length - offset));

								int lineNr = data.Document.OffsetToLineNumber (insertionOffset);
								int col = insertionOffset - data.Document.GetLine (lineNr).Offset;
								int visCol = data.Document.GetLine (lineNr).GetVisualColumn (data, col);
								DocumentLine curLine;
								int lineCol = col;
								result = 0;
								for (int i = 0; i < lines.Count; i++) {
									while (data.Document.LineCount <= lineNr + i) {
										data.Insert (data.Document.TextLength, Environment.NewLine);
										result += Environment.NewLine.Length;
									}
									curLine = data.Document.GetLine (lineNr + i);
									if (lines [i].Length > 0) {
										lineCol = curLine.GetLogicalColumn (data, visCol);
										if (curLine.Length + 1 < lineCol) {
											result += lineCol - curLine.Length;
											data.Insert (curLine.Offset + curLine.Length, new string (' ', lineCol - curLine.Length));
										}
										data.Insert (curLine.Offset + lineCol, lines [i]);
										result += lines [i].Length;
									}
									if (!preserveState)
										data.Caret.Offset = curLine.Offset + lineCol + lines [i].Length;
								}
								if (!preserveState)
									data.ClearSelection ();
								data.FixVirtualIndentation (startLine); 
								data.Caret.PreserveSelection = false;
							}
						} else if (pasteLine) {
							using (var undo = data.OpenUndoGroup ()) {
								if (!preserveSelection)
									data.DeleteSelectedText (!data.IsSomethingSelected || data.MainSelection.SelectionMode != SelectionMode.Block);
								data.EnsureCaretIsNotVirtual ();

								data.Caret.PreserveSelection = true;
								result = text.Length;
								DocumentLine curLine = data.Document.GetLine (data.Caret.Line);

								result = PastePlainText (data, curLine.Offset,  text + data.EolMarker, preserveSelection, copyData);
								if (!preserveState)
									data.ClearSelection ();
								data.Caret.PreserveSelection = false;
								data.FixVirtualIndentation (curLine.LineNumber); 
							}
						} else {
							result = PastePlainText (data, insertionOffset, text, preserveSelection, copyData);
						}
					}
				});
				// we got MD_ATOM text - no need to request text. (otherwise buffer may get copied twice).
				return result;
			}
			
			if (result < 0 && clipboard.WaitIsTextAvailable ()) {
				clipboard.RequestText (delegate(Clipboard clp, string text) {
					if (string.IsNullOrEmpty (text))
						return;
					result = PastePlainText (data, insertionOffset, text, preserveSelection);
				});
//.........这里部分代码省略.........

        void ResetEditorState(TextEditorData data)
        {
            if (data == null)
                return;
            data.ClearSelection ();

            //Editor can be null during GUI-less tests
            // Commenting this fixes bug: Bug 622618 - Inline search fails in vi mode
            //			if (Editor != null)
            //				Editor.HighlightSearchPattern = false;

            if (CaretMode.Block != data.Caret.Mode) {
                data.Caret.Mode = CaretMode.Block;
                if (data.Caret.Column > DocumentLocation.MinColumn)
                    data.Caret.Column--;
            }
            ViActions.RetreatFromLineEnd (data);
        }

		public override void Run (RefactoringOptions options)
		{
			fileName = declaringType.CompilationUnit.FileName;
			
			var openDocument = IdeApp.Workbench.OpenDocument (fileName);
			if (openDocument == null) {
				MessageService.ShowError (string.Format (GettextCatalog.GetString ("Can't open file {0}."), fileName));
				return;
			}
			data = openDocument.Editor;
			if (data == null)
				return;
			openDocument.RunWhenLoaded (delegate {
				try {
					indent = data.Document.GetLine (declaringType.Location.Line).GetIndentation (data.Document) ?? "";
				} catch (Exception) {
					indent = "";
				}
				indent += "\t";
				
				InsertionCursorEditMode mode = new InsertionCursorEditMode (data.Parent, CodeGenerationService.GetInsertionPoints (openDocument, declaringType));
				if (fileName == options.Document.FileName) {
					for (int i = 0; i < mode.InsertionPoints.Count; i++) {
						var point = mode.InsertionPoints [i];
						if (point.Location < data.Caret.Location) {
							mode.CurIndex = i;
						} else {
							break;
						}
					}
				}
				
				ModeHelpWindow helpWindow = new ModeHelpWindow ();
				helpWindow.TransientFor = IdeApp.Workbench.RootWindow;
				helpWindow.TitleText = GettextCatalog.GetString ("<b>Create Method -- Targeting</b>");
				helpWindow.Items.Add (new KeyValuePair<string, string> (GettextCatalog.GetString ("<b>Key</b>"), GettextCatalog.GetString ("<b>Behavior</b>")));
				helpWindow.Items.Add (new KeyValuePair<string, string> (GettextCatalog.GetString ("<b>Up</b>"), GettextCatalog.GetString ("Move to <b>previous</b> target point.")));
				helpWindow.Items.Add (new KeyValuePair<string, string> (GettextCatalog.GetString ("<b>Down</b>"), GettextCatalog.GetString ("Move to <b>next</b> target point.")));
				helpWindow.Items.Add (new KeyValuePair<string, string> (GettextCatalog.GetString ("<b>Enter</b>"), GettextCatalog.GetString ("<b>Declare new method</b> at target point.")));
				helpWindow.Items.Add (new KeyValuePair<string, string> (GettextCatalog.GetString ("<b>Esc</b>"), GettextCatalog.GetString ("<b>Cancel</b> this refactoring.")));
				mode.HelpWindow = helpWindow;
				mode.StartMode ();
				mode.Exited += delegate(object s, InsertionCursorEventArgs args) {
					if (args.Success) {
						SetInsertionPoint (args.InsertionPoint);
						BaseRun (options);
						if (string.IsNullOrEmpty (fileName))
							return;
						data.ClearSelection ();
						data.Caret.Offset = selectionEnd;
						data.SetSelection (selectionStart, selectionEnd);
					}
				};
			});
		}