File indexing completed on 2024-05-12 04:43:05

 /***************************************************************************
  *   Copyright (C) 2018 by Emmanuel Lepage Vallee                          *
  *   Author : Emmanuel Lepage Vallee <emmanuel.lepage@kde.org>             *
  *                                                                         *
  *   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 3 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.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  **************************************************************************/
 #ifndef KQUICKITEMVIEWS_MODELITEM_P_H
 #define KQUICKITEMVIEWS_MODELITEM_P_H
 
 #include <private/statetracker/index_p.h>
 #include <private/indexmetadata_p.h>
 
 class Viewport;
 
 namespace StateTracker {
 
 class Content;
 
 /**
  * Hold the metadata associated with the QModelIndex.
  */
 struct ModelItem final : public StateTracker::Index
 {
     friend class ::IndexMetadata; //access the state machine
 
     explicit ModelItem(Viewport *v);
     virtual ~ModelItem() {}
 
     enum class State {
         NEW       = 0, /*!< During creation, not part of the tree yet         */
         BUFFER    = 1, /*!< Not in the viewport, but close                    */
         REMOVED   = 2, /*!< Currently in a removal transaction                */
         REACHABLE = 3, /*!< The [grand]parent of visible indexes              */
         VISIBLE   = 4, /*!< The element is visible on screen                  */
         ERROR     = 5, /*!< Something went wrong                              */
         DANGLING  = 6, /*!< Being destroyed                                   */
         MOVING    = 7, /*!< Currently undergoing a move operation             */
     };
 
     typedef bool(ModelItem::*StateF)();
 
 
     StateTracker::ModelItem* load(Qt::Edge e) const;
 
     // Getter
     IndexMetadata::EdgeType isTopEdge   () const;
     IndexMetadata::EdgeType isBottomEdge() const;
     State state() const;
 
     // Mutator
     void rebuildState();
 
     //TODO refactor once the class are split
     virtual void remove(bool reparent = false) override;
 
 private:
     // Actions
     bool nothing();
     bool error  ();
     bool show   ();
     bool hide   ();
     bool remove2();
     bool attach ();
     bool detach ();
     bool refresh();
     bool move   ();
     bool destroy();
     bool reset  ();
 
     // Attributes
     State m_State {State::BUFFER};
 
     static const State  m_fStateMap    [8][8];
     static const StateF m_fStateMachine[8][8];
 
     StateTracker::Content* q_ptr;
 };
 
 }
 
 #endif