File indexing completed on 2024-04-28 04:41:51

 /***************************************************************************
  *   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_VIEWPORT_P_H
 #define KQUICKITEMVIEWS_VIEWPORT_P_H
 
 // Qt
 class QQmlComponent;
 class QQmlEngine;
 
 // KItemViews
 class Viewport;
 class IndexMetadata;
 class AbstractItemAdapter;
 class GeoStrategySelector;
 class ViewBaseItemVariables;
 
 namespace StateTracker {
 class Content;
 }
 
 #include <QtCore/QRectF>
 #include <QtCore/QModelIndex>
 
 #include "statetracker/geometry_p.h"
 
 /**
  * In order to keep the separation of concerns design goal intact, this
  * interface between the StateTracker::Content and Viewport internal
  * metadata without exposing them.
  */
 class ViewportSync final
 {
 public:
 
     /**
      * From the model or feedback loop
      */
     void updateGeometry(IndexMetadata* item);
 
     /**
      * From the widget
      */
     void geometryUpdated(IndexMetadata* item);
 
     /**
      * From the model or feedback loop
      */
     void notifyRemoval(IndexMetadata* item);
 
     /**
      * From the model or feedback loop
      */
     void notifyInsert(IndexMetadata* item);
 
     /**
      * From the model when the QModelIndex role change
      */
     void notifyChange(IndexMetadata* item);
 
     /**
      * Manually trigger the sizes and positions to be updated.
      */
     void refreshVisible();
 
     QQmlEngine    *engine();
     QQmlComponent *component();
 
     IndexMetadata *metadataForIndex(const QModelIndex& idx) const;
 
     Viewport *q_ptr;
     StateTracker::Content *m_pReflector {nullptr};
     GeoStrategySelector *m_pGeoAdapter  { nullptr };
     std::function<AbstractItemAdapter*()> m_fFactory;
 
 private:
     QQmlEngine    *m_pEngine    {nullptr};
     QQmlComponent *m_pComponent {nullptr};
 };
 
 #endif