ConfigFileResource.h

#pragma once
 
#include <Core/ResourceManager/Resource.h>
#include <Core/ResourceManager/ResourceTypeLoader.h>
#include <Foundation/CodeUtils/Preprocessor.h>
#include <Foundation/Containers/HashTable.h>
#include <Foundation/IO/DependencyFile.h>
#include <Foundation/Strings/HashedString.h>
#include <Utilities/UtilitiesDLL.h>
 
using plConfigFileResourceHandle = plTypedResourceHandle<class plConfigFileResource>;
 
class PL_UTILITIES_DLL plConfigFileResource : public plResource
{
  PL_ADD_DYNAMIC_REFLECTION(plConfigFileResource, plResource);
 
  PL_RESOURCE_DECLARE_COMMON_CODE(plConfigFileResource);
 
public:
  plConfigFileResource();
  ~plConfigFileResource();
 
  plInt32 GetInt(plTempHashedString sName) const;
 
  float GetFloat(plTempHashedString sName) const;
 
  bool GetBool(plTempHashedString sName) const;
 
  plStringView GetString(plTempHashedString sName) const;
 
  plInt32 GetInt(plTempHashedString sName, plInt32 iFallback) const;
 
  float GetFloat(plTempHashedString sName, float fFallback) const;
 
  bool GetBool(plTempHashedString sName, bool bFallback) const;
 
  plStringView GetString(plTempHashedString sName, plStringView sFallback) const;
 
protected:
  virtual plResourceLoadDesc UnloadData(Unload WhatToUnload) override;
  virtual plResourceLoadDesc UpdateContent(plStreamReader* Stream) override;
  virtual void UpdateMemoryUsage(MemoryUsage& out_NewMemoryUsage) override;
 
private:
  friend class plConfigFileResourceLoader;
 
  plHashTable<plHashedString, plInt32> m_IntData;
  plHashTable<plHashedString, float> m_FloatData;
  plHashTable<plHashedString, plString> m_StringData;
  plHashTable<plHashedString, bool> m_BoolData;
 
  plDependencyFile m_RequiredFiles;
};
 
 
class PL_UTILITIES_DLL plConfigFileResourceLoader : public plResourceTypeLoader
{
public:
  struct LoadedData
  {
    LoadedData()
      : m_Reader(&m_Storage)
    {
    }
 
    plDefaultMemoryStreamStorage m_Storage;
    plMemoryStreamReader m_Reader;
    plDependencyFile m_RequiredFiles;
 
    plResult PrePropFileLocator(plStringView sCurAbsoluteFile, plStringView sIncludeFile, plPreprocessor::IncludeType incType, plStringBuilder& out_sAbsoluteFilePath);
  };
 
  virtual plResourceLoadData OpenDataStream(const plResource* pResource) override;
  virtual void CloseDataStream(const plResource* pResource, const plResourceLoadData& loaderData) override;
  virtual bool IsResourceOutdated(const plResource* pResource) const override;
};