File indexing completed on 2024-05-12 04:35:06

 /* This file is part of the TikZKit project.
  *
  * Copyright (C) 2013-2014 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_METAPOS_P_H
 #define TIKZ_METAPOS_P_H
 
 #include "tikz.h"
 
 #include "Uid.h"
 #include "Pos.h"
 #include <QSharedPointer>
 
 namespace tikz {
 namespace core {
 
 class Document;
 class MetaPos;
 class MetaPosHelper;
 
 /**
  * Private data structure for MetaPos.
  */
 class MetaPosPrivate : public QObject
 {
     Q_OBJECT
 
     public:
         MetaPos * q = nullptr;
         Document * doc = nullptr;
 
         tikz::Pos pos;
         Uid nodeId;
         QString anchor;
 
     public:
         MetaPosPrivate(MetaPos * metaPos);
 
     public:
         /**
          * Start changing the MetaPos.
          * This call is ref-counted. For each beginChange() you finally
          * have to call endChange().
          */
         void beginChange();
 
         /**
          * End of changing the MetaPos.
          * This will call MetaPos::changed(), if the number of calls of endChange()
          * matches the calls the one of beginConfig(), i.e. the ref-counter is zero.
          *
          * Using beginConfig() and endChange() allows to change multiple
          * config values, while still only emitting the changed() signal only once.
          */
         void endChange();
 
     public Q_SLOTS:
         /**
          * This slot is called whenever attached Node%s changed.
          */
         void changeRequest();
 
     Q_SIGNALS:
         /**
          * This signal is emitted either when a new node is set with setNode(),
          * when the x/y position of the node changed, or when the associated
          * Style of the node changed.
          */
         void changed(tikz::core::MetaPos * metaPos);
 
     protected:
         /**
          * Change ref counter;
          */
         int changeRefCounter = 0;
 };
 
 }
 }
 
 #endif // TIKZ_METAPOS_P_H
 
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