File indexing completed on 2024-04-28 04:41:49

 /***************************************************************************
  *   Copyright (C) 2017-2018 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_CONTENT_P_H
 #define KQUICKITEMVIEWS_CONTENT_P_H
 
 // Qt
 #include <QtCore/QObject>
 #include <QtCore/QAbstractItemModel>
 
 // KQuickItemViews
 class ContentPrivate;
 class Viewport;
 class ModelRect;
 #include <private/indexmetadata_p.h>
 #include "modelitem_p.h"
 
 namespace StateTracker {
 
 struct ModelItem;
 struct Model;
 
 /**
  * Listen to the model changes and forward those changes to the other relevant
  * state trackers.
  */
 class Content final : public QObject
 {
     Q_OBJECT
 public:
     enum class Event {
         ENTER_STATE,
         LEAVE_STATE,
     };
 
     explicit Content(Viewport* parent = nullptr);
     virtual ~Content();
 
     // Edges management
     void setAvailableEdges(Qt::Edges edges, IndexMetadata::EdgeType type);
     Qt::Edges availableEdges(IndexMetadata::EdgeType type) const;
     IndexMetadata *getEdge(IndexMetadata::EdgeType t, Qt::Edge e) const;
     void setEdge(IndexMetadata::EdgeType et, StateTracker::Index* tti, Qt::Edge e);
     ModelRect* edges(IndexMetadata::EdgeType e) const;
 
     // Getter
     StateTracker::Index *root        () const;
     StateTracker::Index *lastItem    () const;
     StateTracker::Index *firstItem   () const;
     StateTracker::Model *modelTracker() const;
 
     // Mutator
     void connectModel(QAbstractItemModel *m);
     void disconnectModel(QAbstractItemModel *m);
     void resetRoot();
     void resetEdges();
     void perfromStateChange(Event e, IndexMetadata *md, StateTracker::ModelItem::State s);
     void forceInsert(const QModelIndex& idx);
     void forceInsert(const QModelIndex& parent, int first, int last);
 
     // Helpers
     IndexMetadata *metadataForIndex(const QModelIndex& idx) const;
     bool isActive(const QModelIndex& parent, int first, int last);
     Index *find(Index *i, Qt::Edge direction, std::function<bool(Index *i)>) const;
 
 Q_SIGNALS:
     void contentChanged();
 
 private:
     ContentPrivate* d_ptr;
 };
 
 }
 
 // Inject some extra validation when executed in debug mode.
 #ifdef ENABLE_EXTRA_VALIDATION
  #define _DO_TEST(f, ...) f(__VA_ARGS__);
  #include <private/runtimetests_p.h>
 #else
  #define _DO_TEST(f, ...) /*NOP*/;
 #endif
 
 #endif