File indexing completed on 2024-04-28 12:30:05

 /***************************************************************************
  *   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_VIEWPORT_H
 #define KQUICKITEMVIEWS_VIEWPORT_H
 
 // Qt
 #include <QtCore/QAbstractItemModel>
 #include <QtCore/QRectF>
 
 // KQuickItemViews
 #include <viewbase.h>
 class ViewportPrivate;
 class ViewportSync;
 class AbstractItemAdapter;
 class GeometryAdapter;
 
 /**
 * This class exposes a way to track and iterate a subset of the model.
 *
 * It prevents all of the model reflection to have to be loaded in memory
 * and offers a simpler API to access the loaded sections.
 *
 * This class is for internal use and should not be used by views. Please use
 * `ViewBase` for all relevant use cases.
 */
 class Q_DECL_EXPORT Viewport : public QObject
 {
     friend class AbstractItemAdapter; // for the getters defined in viewport.cpp
     friend class ViewportSync; // its own internal API
 
     Q_OBJECT
 public:
     explicit Viewport(ModelAdapter* ma);
     virtual ~Viewport();
 
     /**
      * Get the current (cartesian) rectangle represented by this range.
      */
     QRectF currentRect() const;
 
     ModelAdapter *modelAdapter() const;
 
     QSizeF size() const;
 
     QPointF position() const;
 
     QSizeF totalSize() const;
 
     Qt::Edges availableEdges() const;
 
     GeometryAdapter *geometryAdapter() const;
     void setGeometryAdapter(GeometryAdapter *a);
 
     void setItemFactory(ViewBase::ItemFactoryBase *factory);
 
     void resize(const QRectF& rect);
 
     QModelIndex indexAt(const QPoint & point) const;
     QModelIndex indexAt(Qt::Corner corner) const;
     QModelIndex indexAt(Qt::Edge edge) const;
 
     QRectF itemRect(const QModelIndex& i) const;
 
     ViewportSync *s_ptr;
 
 Q_SIGNALS:
     void contentChanged();
     void cornerChanged();
 
 public:
     ViewportPrivate *d_ptr;
 };
 
 #endif