File indexing completed on 2024-05-12 04:35:05

 /* This file is part of the TikZKit project.
  *
  * Copyright (C) 2015 Dominik Haumann <dhaumann@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 as published
  * by the Free Software Foundation, either version 2 of the License, or
  * (at your option) any later version.
  *
  * 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, see
  * <http://www.gnu.org/licenses/>.
  */
 
 #ifndef TIKZ_CORE_UNDO_GROUP_H
 #define TIKZ_CORE_UNDO_GROUP_H
 
 #include <QObject>
 #include <QString>
 
 namespace tikz {
 namespace core {
 
 class Document;
 class UndoManager;
 class UndoItem;
 class UndoGroupPrivate;
 
 /**
  * Class to manage a group of undo items
  */
 class UndoGroup
 {
 public:
     /**
      * Constructor with undo manager this group belongs to.
      */
     explicit UndoGroup(const QString & text, UndoManager * manager);
 
     /**
      * Destructor
      */
     ~UndoGroup();
 
     /**
      * Returns a pointer to the document.
      */
     Document * document() const;
 
     /**
      * Returns the description of this undo group.
      */
     QString text() const;
 
 public:
     /**
      * is this undogroup empty?
      */
     bool isEmpty() const;
 
     /**
      * Undo the contained undo items.
      */
     void undo();
 
     /**
      * Redo the contained undo items.
      */
     void redo();
 
 public:
     /**
      * Add @p item to the undo group.
      * If possible, @p item is merged with the last item in this undo group.
      * If a merge was performed, the @p item pointer is invalid afterwards,
      * so never access @p item after adding an item to a group.
      */
     void addItem(UndoItem * item);
 
     /**
      * Returns a list of all undo items.
      * You must not delete the pointers to the UndoItem%s.
      */
     QList<UndoItem *> undoItems() const;
 
     /**
      * Returns the number of undo items;
      */
     int count() const;
 
 public:
     // debugging
     void printTree();
 
 private:
     /**
      * Pimpl pointer to the held data.
      */
     UndoGroupPrivate * const d;
 };
 
 }
 }
 
 #endif // TIKZ_CORE_UNDO_GROUP_H
 
 // kate: indent-width 4; replace-tabs on;