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/*
 *  R.app : a Cocoa front end to: "R A Computer Language for Statistical Data Analysis"
 *  
 *  R.app Copyright notes:
 *                     Copyright (C) 2004-12  The R Foundation
 *                     written by Stefano M. Iacus and Simon Urbanek
 *
 *                  
 *  R Copyright notes:
 *                     Copyright (C) 1995-1996   Robert Gentleman and Ross Ihaka
 *                     Copyright (C) 1998-2001   The R Development Core Team
 *                     Copyright (C) 2002-2004   The R Foundation
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  A copy of the GNU General Public License is available via WWW at
 *  http://www.gnu.org/copyleft/gpl.html.  You can also obtain it by
 *  writing to the Free Software Foundation, Inc., 59 Temple Place,
 *  Suite 330, Boston, MA  02111-1307  USA.
 *
 *  RScriptEditorTextStorage.h
 *
 *  Created by Hans-J. Bibiko on 01/03/2012.
 *
 */

#import <Cocoa/Cocoa.h>

#define R_MAX_FOLDED_ITEMS 100

@interface RScriptEditorTextStorage : NSTextStorage
{

    NSTextStorage *_attributedString;
    NSInteger foldedRanges[R_MAX_FOLDED_ITEMS][2];
    NSInteger foldedCounter;

    BOOL _lineFoldingEnabled;
    IMP _getImp;
    IMP _setImp;
    IMP _strImp;
    IMP _replImp;
    IMP _editImp;
    IMP _getlImp;

}

@property BOOL lineFoldingEnabled;

- (NSInteger)foldedAtIndex:(NSInteger)index;
- (NSInteger)foldedForIndicatorAtIndex:(NSInteger)index;
- (NSRange)foldedRangeAtIndex:(NSInteger)index;
- (NSInteger)registerFoldedRange:(NSRange)range;
- (BOOL)removeFoldedRangeWithId:(NSNumber*)index;
- (void)removeAllFoldedRanges;
- (BOOL)existsFoldedRange:(NSRange)range;
- (BOOL)hasFoldedItems;

@end