File indexing completed on 2024-06-09 04:22:25

 /*
  *  SPDX-FileCopyrightText: 2017 Dmitry Kazakov <dimula73@gmail.com>
  *  SPDX-FileCopyrightText: 2018 Andrey Kamakin <a.kamakin@icloud.com>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef KISTILEDEXTENTMANAGER_H
 #define KISTILEDEXTENTMANAGER_H
 
 #include <QMutex>
 #include <QReadWriteLock>
 #include <QMap>
 #include <QRect>
 #include "kritaimage_export.h"
 
 
 class KRITAIMAGE_EXPORT KisTiledExtentManager
 {
     static const qint32 InitialBufferSize = 256;
 
     class KRITAIMAGE_EXPORT Data
     {
     public:
         Data();
         ~Data();
 
         bool add(qint32 index);
         bool remove(qint32 index);
         void replace(const QVector<qint32> &indexes);
         void clear();
         bool isEmpty();
         qint32 min();
         qint32 max();
 
     public:
         QReadWriteLock m_extentLock;
 
     private:
         inline void unsafeAdd(qint32 index);
         inline void unsafeMigrate(qint32 index);
         inline void migrate(qint32 index);
         inline void updateMin();
         inline void updateMax();
 
     private:
         qint32 m_min;
         qint32 m_max;
         qint32 m_offset;
         qint32 m_capacity;
         qint32 m_count;
         QAtomicInt *m_buffer;
         QReadWriteLock m_migrationLock;
     };
 
 public:
     KisTiledExtentManager();
 
     void notifyTileAdded(qint32 col, qint32 row);
     void notifyTileRemoved(qint32 col, qint32 row);
     void replaceTileStats(const QVector<QPoint> &indexes);
     void clear();
     QRect extent() const;
 
 private:
     void updateExtent();
     friend class KisTiledDataManagerTest;
 
 private:
     mutable QReadWriteLock m_extentLock;
     QRect m_currentExtent;
     Data m_colsData;
     Data m_rowsData;
 };
 
 #endif // KISTILEDEXTENTMANAGER_H