ResourceLinks.h

//=========================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt for details.
//
//  This software is distributed WITHOUT ANY WARRANTY; without even
//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
//  PURPOSE.  See the above copyright notice for more information.
//=========================================================================
 
#ifndef smtk_resource_ResourceLinks_h
#define smtk_resource_ResourceLinks_h
 
#include "smtk/CoreExports.h"
#include "smtk/PublicPointerDefs.h"
 
#include "smtk/common/Links.h"
#include "smtk/common/UUID.h"
 
#include "smtk/resource/ComponentLinks.h"
#include "smtk/resource/Surrogate.h"
 
#include "smtk/resource/Links.h"
 
#include <set>
 
namespace smtk
{
namespace resource
{
class Resource;
 
namespace detail
{
class ResourceLinkBase
  : public Surrogate
  , public ComponentLinks::Data
{
public:
  ResourceLinkBase(const ResourceLinkBase&) = default;
  ResourceLinkBase(ResourceLinkBase&&) = default;
 
  ResourceLinkBase(
    const std::size_t& index,
    const std::string& typeName,
    const smtk::common::UUID& id,
    const std::string& location)
    : Surrogate(index, typeName, id, location)
  {
  }
 
  ResourceLinkBase(const ResourcePtr& resource)
    : Surrogate(resource)
  {
  }
 
  ResourceLinkBase(Surrogate&& surrogate)
    : Surrogate(surrogate)
  {
  }
 
  ~ResourceLinkBase() override = default;
};
 
class SMTKCORE_EXPORT ResourceLinks : public Links
{
  typedef detail::ComponentLinks::Data ComponentLinkData;
  typedef detail::ResourceLinkBase ResourceLinkBase;
 
public:
  friend class smtk::resource::Resource;
 
  typedef smtk::common::
    Links<smtk::common::UUID, smtk::common::UUID, smtk::common::UUID, int, ResourceLinkBase>
      ResourceLinkData;
 
  typedef ResourceLinkData::Link Link;
 
  ~ResourceLinks();
 
  ResourceLinkData& data() { return m_data; }
  const ResourceLinkData& data() const { return m_data; }
 
  bool resolve(const ResourcePtr&) const;
 
  bool removeAllLinksTo(const ResourcePtr&);
 
private:
  ResourceLinks(Resource*);
 
  Resource* leftHandSideResource() override;
  const Resource* leftHandSideResource() const override;
 
  Resource* m_resource;
  ResourceLinkData m_data;
};
} // namespace detail
} // namespace resource
} // namespace smtk
 
#endif // smtk_resource_ResourceLinks_h