File indexing completed on 2024-05-12 15:59:15

 /*
  *  SPDX-FileCopyrightText: 2008 Cyrille Berger <cberger@cberger.net>
  *
  *  SPDX-License-Identifier: LGPL-2.1-or-later
  */
 
 #ifndef _KIS_META_DATA_MERGE_STRATEGY_H_
 #define _KIS_META_DATA_MERGE_STRATEGY_H_
 
 #include <QList>
 
 #include <kritametadata_export.h>
 
 class QString;
 
 namespace KisMetaData
 {
 class Store;
 /**
  * This is an interface which serves as a base class for meta data store merge
  * strategy.
  * This is used to decide which entries of a metadata store is kept, or how they
  * are modified when a list of meta data stores are merged together.
  */
 class KRITAMETADATA_EXPORT MergeStrategy
 {
 public:
     virtual ~MergeStrategy();
     /// @return the id of this merge strategy
     virtual QString id() const = 0;
     /// @return the name of this merge strategy
     virtual QString name() const = 0;
     /// @return a description of this merge strategy
     virtual QString description() const = 0;
     /**
      * Call this function to merge a list of meta data stores in one.
      * @param dst the destination store
      * @param srcs the list of source meta data store
      * @param scores a list of score which defines the importance of each store compared to the other
      *              the sum of score is expected to be equal to 1.0.
      *              One way to attribute a score is to compute the area of each layer and then
      *              to give a higher score to the biggest layer.
      * srcs and scores list must have the same size.
      */
     virtual void merge(Store* dst, QList<const Store*> srcs, QList<double> scores) const = 0;
 };
 
 }
 
 #endif