File indexing completed on 2024-05-12 04:35:03

 /* This file is part of the TikZKit project.
  *
  * Copyright (C) 2013-2018 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_UNDO_SET_PROPERTY_H
 #define TIKZ_UNDO_SET_PROPERTY_H
 
 #include "tikz_export.h"
 #include "UndoItem.h"
 #include "Entity.h"
 
 namespace tikz {
 namespace core {
 
 class Node;
 class Document;
 
 class TIKZKITCORE_EXPORT UndoSetProperty : public UndoItem
 {
     public:
         /**
          * Constructor.
          */
         UndoSetProperty(Document * doc);
 
         /**
          * Constructor.
          */
         UndoSetProperty(const Uid & entityUid, const QString & propertyName, const QVariant & newValue);
 
         /**
          * Destructor
          */
         virtual ~UndoSetProperty();
 
         /**
          * Return uniq undo item id.
          */
         int id() const override {
             return uniqId<decltype(this)>();
         }
 
         /**
          * Undo: add node again.
          */
         void undo() override;
 
         /**
          * Redo: delete node again.
          */
         void redo() override;
 
         /**
          * Merge undo items, if possible.
          */
         bool mergeWith(const UndoItem * command) override;
 
 protected:
         /**
         * Load the undo item state from the @p json object.
         */
         void loadData(const QJsonObject & json) override;
 
         /**
          * Serializie to JSON object.
          */
         QJsonObject saveData() const override;
 
     private:
         /**
          * The unique Entity id.
          */
         Uid m_entityUid;
 
         /**
          * The property name.
          */
         QString m_propertyName;
 
         /**
          * The old value of the property.
          * If the property was not set, this holds an invalid QVariant().
          */
         QVariant m_undoValue;
 
         /**
          * The new value of the property.
          */
         QVariant m_redoValue;
 };
 
 }
 }
 
 #endif // TIKZ_UNDO_SET_PROPERTY_H
 
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