File indexing completed on 2024-05-12 15:59:50

 /*
  * SPDX-FileCopyrightText: 2018 Boudewijn Rempt <boud@valdyas.org>
  *
  * SPDX-License-Identifier: LGPL-2.0-or-later
  */
 
 #ifndef KISRESOURCELOADERREGISTRY_H
 #define KISRESOURCELOADERREGISTRY_H
 
 #include <QObject>
 #include <QSet>
 #include <QStringList>
 
 #include <KoGenericRegistry.h>
 #include "KisResourceLoader.h"
 
 #include <kritaresources_export.h>
 
 /**
  * @brief The KisResourceLoaderRegistry class manages the loader plugins for resources. Every resource can be loaded
  * by a KisResourceLoader instance. A loader corresponds to a particular file type. Resources are organized in
  * folders that represent the main type of a certain resource (brushes) and subtypes, that identify a particular
  * resource format (gbr, gih, png, svg).
  * 
  * KisResourceLoaderRegistry has full knowledge of all resource types that are defined for Krita.
  */
 class KRITARESOURCES_EXPORT KisResourceLoaderRegistry : public QObject, public KoGenericRegistry<KisResourceLoaderBase*>
 {
     Q_OBJECT
 public:
     ~KisResourceLoaderRegistry() override;
 
     static KisResourceLoaderRegistry *instance();
 
     /**
      * Adds the given loader and registers its type in the database, if it hasn't been registered yet.
      */
     void registerLoader(KisResourceLoaderBase* loader);
 
     /// @return the first loader for the given resource type and mimetype
     KisResourceLoaderBase *loader(const QString &resourceType, const QString &mimetype) const;
 
     /**
      * @return a list of filename extensions that can be present for the given resource type
      */
     QStringList filters(const QString &resourceType) const;
 
     /**
      * @return a list of mimetypes that can be loaded for the given resourde type
      */
     QStringList mimeTypes(const QString &resourceType) const;
 
     /**
      * @return the list of folders for which resource loaders have been registered
      */
     QStringList resourceTypes() const;
 
     /**
      * @return a list of loader plugins that can handle the resources stored in the folder. A folder can contain multiple subtypes.
      */
     QVector<KisResourceLoaderBase*> resourceTypeLoaders(const QString &resourceType) const;
 
     /**
      * Sometimes the database needs updates without changing
      * the schema of the database. E.g. when we need to update
      * the resources' metadata. In such cacse, fix up should
      * be created.
      */
     struct ResourceCacheFixup {
         virtual ~ResourceCacheFixup() {};
         virtual QStringList executeFix() = 0;
     };
 
     void registerFixup(int priority, ResourceCacheFixup *fixup);
     QStringList executeAllFixups();
 
 private:
 
     KisResourceLoaderRegistry(QObject *parent);
     KisResourceLoaderRegistry(const KisResourceLoaderRegistry&);
     KisResourceLoaderRegistry operator=(const KisResourceLoaderRegistry&);
 private:
 
     struct Private;
     QScopedPointer<Private> m_d;
 };
 
 #endif // KISRESOURCELOADERREGISTRY_H