kateundo.h

/* This file is part of the KDE libraries
   Copyright (C) 2002 John Firebaugh <jfirebaugh@kde.org>
   Copyright (C) 2001 Christoph Cullmann <cullmann@kde.org>
   Copyright (C) 2001 Joseph Wenninger <jowenn@kde.org>
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.
 
   This library 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/
 
#ifndef kate_undo_h
#define kate_undo_h
 
#include <tqptrlist.h>
#include <tqstring.h>
 
class KateDocument;
class KateUndo;
 
class KateUndoGroup
{
  public:
    KateUndoGroup (KateDocument *doc);
 
    ~KateUndoGroup ();
 
  public:
    void undo ();
 
    void redo ();
 
  public:
    enum UndoType
    {
      editInsertText,
      editRemoveText,
      editWrapLine,
      editUnWrapLine,
      editInsertLine,
      editRemoveLine,
      editMarkLineAutoWrapped,
      editInvalid
    };
 
    void addItem (KateUndoGroup::UndoType type, uint line, uint col, uint len, const TQString &text);
 
    bool merge(KateUndoGroup* newGroup,bool complex);
 
    void safePoint (bool safePoint=true);
 
    bool isEmpty () const { return m_items.isEmpty(); }
 
  private:
    KateUndoGroup::UndoType singleType();
 
    bool isOnlyType(KateUndoGroup::UndoType type);
 
    void addItem (KateUndo *u);
 
  private:
    KateDocument *m_doc;
 
    TQPtrList<KateUndo> m_items;
 
    bool m_safePoint;
};
 
#endif