public addSecondaryCursor(selection: EditorCommon.ISelection): void {
		var newCursor = new OneCursor(this.editorId, this.model, this.configuration, this.modeConfiguration, this.viewModelHelper);
		if (selection) {
			newCursor.setSelection(selection);
		}
		this.secondaryCursors.push(newCursor);
		this.lastAddedCursorIndex = this.secondaryCursors.length;
	}

	public addSecondaryCursor(selection: ISelection): void {
		var newCursor = new OneCursor(this.context);
		if (selection) {
			newCursor.setSelection(this.context, selection);
		}
		this.secondaryCursors.push(newCursor);
		this.lastAddedCursorIndex = this.secondaryCursors.length;
	}

	public setSelections(selections: ISelection[], viewSelections?: ISelection[]): void {
		this.primaryCursor.setSelection(selections[0]);
		this._setSecondarySelections(selections.slice(1));

		if (viewSelections) {
			this.primaryCursor.setViewSelection(viewSelections[0]);
			for (let i = 0; i < this.secondaryCursors.length; i++) {
				this.secondaryCursors[i].setViewSelection(viewSelections[i + 1]);
			}
		}
	}

	public getPosition(index: number): Position {
		if (index === 0) {
			return this.primaryCursor.getPosition();
		} else {
			return this.secondaryCursors[index - 1].getPosition();
		}
	}

	public setStates(states: CursorState[]): void {
		if (states === null) {
			return;
		}
		this.primaryCursor.setState(this.context, states[0].modelState, states[0].viewState);
		this._setSecondaryStates(states.slice(1));
	}

	public getViewPosition(index: number): EditorCommon.IEditorPosition {
		if (index === 0) {
			return this.primaryCursor.getViewPosition();
		} else {
			return this.secondaryCursors[index - 1].getViewPosition();
		}
	}

	public getSelection(index: number): IEditorSelection {
		if (index === 0) {
			return this.primaryCursor.getSelection();
		} else {
			return this.secondaryCursors[index - 1].getSelection();
		}
	}

	public setStates(states: CursorState[], ensureInEditableRange: boolean): void {
		if (states === null) {
			return;
		}
		this.primaryCursor.setState(this.context, states[0].modelState, states[0].viewState, ensureInEditableRange);
		this._setSecondaryStates(states.slice(1), ensureInEditableRange);
	}

	public getViewSelections(): Selection[] {
		var result: Selection[] = [];
		result.push(this.primaryCursor.getViewSelection());
		for (var i = 0, len = this.secondaryCursors.length; i < len; i++) {
			result.push(this.secondaryCursors[i].getViewSelection());
		}
		return result;
	}

	public getAll(): CursorState[] {
		let result: CursorState[] = [];
		result[0] = this.primaryCursor.asCursorState();
		for (let i = 0, len = this.secondaryCursors.length; i < len; i++) {
			result[i + 1] = this.secondaryCursors[i].asCursorState();
		}
		return result;
	}